/* ============================================================
   山西新谦益农业有限公司 · 本草山河，循时而生
   Design system: mineral green · cinnabar · bronze · rice paper
   ============================================================ */

:root {
  --ink: #1d2620;
  --ink-2: #232f27;
  --ink-3: #2c3b31;
  --pine: #2f5d50;
  --pine-bright: #4a7a64;
  --sage: #8fae98;
  --mist: #e9efe6;
  --paper: #f7f3e8;
  --paper-warm: #f1ebdb;
  --paper-deep: #e8e0cc;
  --cinnabar: #b8452a;
  --cinnabar-deep: #97351f;
  --bronze: #b08d57;
  --bronze-light: #cba96b;
  --text-dark: #2b332c;
  --text-soft: #5c675f;

  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-hand: "Ma Shan Zheng", "Noto Serif SC", cursive;
  --font-en: "Cormorant Garamond", "Noto Serif SC", serif;

  --ease-out: cubic-bezier(.22, .8, .32, 1);
  --shadow-card: 0 18px 50px -18px rgba(29, 38, 32, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body { width: 100%; }

/* 键盘可达性：跳转链接与焦点样式 */
.skip-link {
  position: fixed; top: -60px; left: 1rem; z-index: 300;
  padding: .6rem 1.1rem; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-size: .85rem; letter-spacing: .12em;
  transition: top .25s var(--ease-out);
}
.skip-link:focus { top: .8rem; }
:focus-visible { outline: 2px solid var(--bronze-light); outline-offset: 3px; border-radius: 4px; }

body {
  font-family: var(--font-sans);
  color: var(--text-dark);
  background: var(--paper);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--cinnabar); color: var(--paper); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: var(--pine); border-radius: 6px; border: 2px solid var(--paper-deep); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container { width: min(1180px, 90vw); margin: 0 auto; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .95s var(--ease-out), transform .95s var(--ease-out); will-change: opacity, transform; }
.reveal.on { opacity: 1; transform: none; }

/* ---------- typography shared ---------- */
.sec-label {
  font-family: var(--font-sans);
  font-size: .8rem; letter-spacing: .42em; font-weight: 500;
  color: var(--cinnabar); margin-bottom: 1.2rem;
}
.sec-label.light { color: var(--bronze-light); }
.sec-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.25;
  color: var(--ink); margin-bottom: 1.4rem; letter-spacing: .04em;
}
.sec-title.light { color: var(--paper); }
.sec-lead { max-width: 56em; color: var(--text-soft); font-size: 1.02rem; margin-bottom: 2.6rem; }
.sec-lead.light { color: rgba(233, 239, 230, .78); }

.seal-font { font-family: var(--font-serif); font-weight: 900; }
.hand-font { font-family: var(--font-hand); }

body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .01em; }
body.lang-en .hero-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .02em; }
body.lang-en .biz-card h3, body.lang-en .q-item h3, body.lang-en .value h3 { font-family: var(--font-en); letter-spacing: .02em; }

/* ============================================================
   Preloader
   ============================================================ */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.4rem;
  transition: opacity .8s ease .1s, visibility .8s ease .1s;
}
.preloader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-seal { color: var(--cinnabar); animation: sealIn 1s var(--ease-out) both; }
.preloader-text { font-family: var(--font-serif); color: var(--paper); letter-spacing: .5em; font-size: .95rem; opacity: 0; animation: fadeUp .9s ease .45s both; }
@keyframes sealIn { from { opacity: 0; transform: scale(1.5); } 60% { opacity: 1; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1.2rem, 4vw, 3rem);
  transition: background .45s ease, box-shadow .45s ease, padding .45s ease;
}
.nav.scrolled {
  background: rgba(244, 243, 236, .96);
  box-shadow: 0 1px 0 rgba(29, 38, 32, .08), 0 10px 40px -20px rgba(29, 38, 32, .3);
  padding-top: .6rem; padding-bottom: .6rem;
}
.nav.on-dark:not(.scrolled) { color: var(--paper); }
.nav-brand { display: flex; align-items: center; gap: .7rem; }
.nav-seal {
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.2rem;
  display: grid; place-items: center;
  box-shadow: 0 6px 18px -6px rgba(184, 69, 42, .55);
}
.nav-name { display: flex; flex-direction: column; line-height: 1.2; }
.nav-name-zh { font-family: var(--font-serif); font-weight: 700; font-size: 1.02rem; letter-spacing: .12em; }
.nav-name-en { font-size: .58rem; letter-spacing: .3em; opacity: .7; font-weight: 500; }
.nav-links { display: flex; gap: clamp(1rem, 2.4vw, 2.2rem); }
.nav-links a {
  font-size: .88rem; letter-spacing: .12em; font-weight: 500; position: relative; padding: .3rem 0;
  opacity: .85; transition: opacity .3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--cinnabar); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out);
}
.nav-links a:hover, .nav-links a.active { opacity: 1; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: .8rem; }
.lang-toggle {
  border: 1px solid currentColor; background: transparent; color: inherit;
  font-size: .72rem; letter-spacing: .12em; font-weight: 500;
  padding: .32rem .8rem; border-radius: 999px; opacity: .85;
  transition: background .3s, color .3s, opacity .3s;
}
.lang-toggle:hover { background: var(--cinnabar); border-color: var(--cinnabar); color: var(--paper); opacity: 1; }
.nav-burger { display: block; background: none; border: none; width: 34px; height: 26px; position: relative; color: inherit; }


/* ============================================================
   Screen 1 · Hero 山野初见
   ============================================================ */
.hero {
  position: relative; height: 100vh; height: 100svh; min-height: 620px; overflow: hidden;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .45), rgba(20, 28, 23, .7));
}
/* 视频背景层（调色已烧进 mp4，勿再加 CSS 滤镜） */
.hero-video {
  position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%;
  object-fit: cover;
}
/* 云雾带（screen 混合，缓慢横流） */
.hero-mistband {
  position: absolute; left: 0; width: 100%; z-index: 1;
  pointer-events: none; mix-blend-mode: screen;
  background: url('../assets/mist-band.webp') 50% 50% / 100% 100% no-repeat;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  mask-composite: intersect;
}
.hero-mistband-a { top: 36%; height: 24%; opacity: .25; animation: mistBreathe 22s ease-in-out infinite alternate; }
.hero-mistband-b { bottom: 4%; height: 30%; opacity: .18; z-index: 3; animation: mistBreathe 30s ease-in-out infinite alternate-reverse; }
@keyframes mistBreathe { from { opacity: .15; } to { opacity: .25; } }
#hero-canvas { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; display: block; }
.hero-vignette { z-index: 4; }
.hero-inner { z-index: 5; }
.hero-seal { z-index: 6; }
.scroll-hint { z-index: 6; }
.hero-vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .2), transparent 30%, transparent 70%, rgba(20, 28, 23, .55));
}
.hero-inner {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: var(--paper); padding: 0 6vw;
}
.hero-eyebrow { font-size: .78rem; letter-spacing: .55em; color: var(--bronze-light); margin-bottom: 2rem; font-weight: 500; text-shadow: 0 2px 18px rgba(20, 28, 23, .8); }
.hero-title {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.1rem, 6.2vw, 4.6rem); letter-spacing: .1em;
  text-shadow: 0 4px 40px rgba(0, 0, 0, .4);
}
.hero-divider { display: flex; align-items: center; gap: 1rem; margin: 1.6rem 0 1.3rem; color: var(--bronze-light); }
.hero-divider span { display: block; width: clamp(60px, 10vw, 130px); height: 1px; background: linear-gradient(to right, transparent, var(--bronze-light)); }
.hero-divider span:last-child { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-divider i { font-style: normal; font-size: .8rem; opacity: .9; }
.hero-tagline { font-family: var(--font-serif); font-size: clamp(1.2rem, 2.6vw, 1.9rem); letter-spacing: .34em; color: var(--paper); margin-bottom: 1rem; text-shadow: 0 2px 22px rgba(20, 28, 23, .75); }
.hero-sub { font-size: clamp(.85rem, 1.4vw, 1rem); letter-spacing: .22em; color: rgba(233, 239, 230, .82); font-weight: 300; text-shadow: 0 2px 16px rgba(20, 28, 23, .7); }
body.lang-en .hero-tagline { letter-spacing: .12em; font-size: clamp(1.1rem, 2.2vw, 1.6rem); }
body.lang-en .hero-sub { letter-spacing: .1em; }

.hero-seal {
  position: absolute; z-index: 3; right: clamp(1.2rem, 5vw, 4.5rem); bottom: clamp(5.5rem, 14vh, 9rem);
  display: flex; flex-direction: column;
  border: 2px solid rgba(184, 69, 42, .9); border-radius: 10px; overflow: hidden;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .5);
  background: rgba(184, 69, 42, .9);
}
.hero-seal span {
  width: 46px; height: 46px; display: grid; place-items: center;
  color: var(--paper); font-family: var(--font-serif); font-weight: 900; font-size: 1.35rem;
}
.scroll-hint {
  position: absolute; z-index: 3; left: 50%; bottom: 2.2rem; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .7rem; color: rgba(233, 239, 230, .75);
}
.scroll-hint-text { font-size: .68rem; letter-spacing: .34em; }
.scroll-hint-line { width: 1px; height: 52px; background: rgba(233, 239, 230, .35); position: relative; overflow: hidden; }
.scroll-hint-line::after {
  content: ""; position: absolute; left: 0; top: -50%; width: 100%; height: 50%;
  background: var(--bronze-light); animation: scrollDrop 2.2s ease-in-out infinite;
}
@keyframes scrollDrop { 0% { top: -50%; } 60%, 100% { top: 110%; } }

/* ============================================================
   Screen 2 · About 关于我们
   ============================================================ */
.about { position: relative; padding: clamp(6rem, 12vh, 9rem) 0 clamp(5rem, 10vh, 8rem); background: var(--paper); overflow: hidden; }
.about-bg { position: absolute; inset: 0; pointer-events: none; }
.about-bg-img {
  position: absolute; inset: -8% -6% auto -6%; height: 118%;
  background: url('../assets/about-terraces.webp') center 30% / cover no-repeat;
  opacity: .34;
  -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
  mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
}
.about-mist {
  position: absolute; left: -20%; width: 140%; height: 40%;
  background: radial-gradient(50% 60% at 50% 50%, rgba(247, 243, 232, .95), rgba(247, 243, 232, 0) 70%);
  filter: blur(10px);
}
.about-mist-a { top: -4%; }
.about-mist-b { top: 26%; opacity: .8; }
.about .container { position: relative; z-index: 2; }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin: 3rem 0 3.4rem; }
.value {
  background: rgba(255, 255, 255, .55);
  border: 1px solid rgba(47, 93, 80, .16);
  border-radius: 14px; padding: 1.8rem 1.6rem 1.6rem;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.value:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); }
.value-mark {
  display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1rem;
  border-radius: 10px; background: var(--pine); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.3rem;
}
.value h3 { font-family: var(--font-serif); font-size: 1.15rem; color: var(--ink); margin-bottom: .5rem; letter-spacing: .1em; }
.value p { font-size: .88rem; color: var(--text-soft); }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  border-top: 1px solid rgba(47, 93, 80, .2); border-bottom: 1px solid rgba(47, 93, 80, .2);
  padding: 2.2rem 0; margin-bottom: 3rem;
}
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-serif); font-weight: 900; font-size: clamp(1.9rem, 3.4vw, 2.8rem); color: var(--pine); line-height: 1.1; }
.stat-num i { font-style: normal; }
.stat-num em { font-style: normal; font-size: .55em; color: var(--cinnabar); margin-left: .1em; }
.stat-label { font-size: .8rem; letter-spacing: .1em; color: var(--text-soft); }

.about-loc {
  display: flex; align-items: center; justify-content: center; gap: .7rem;
  color: var(--pine); font-size: .92rem; letter-spacing: .06em;
}
.about-loc-pin { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: rgba(47, 93, 80, .1); }

/* ============================================================
   Screen 3 · History 发展历程（长卷）
   ============================================================ */
.history { position: relative; background: var(--ink-2); color: var(--paper); }
.history-pin { padding: clamp(5rem, 10vh, 7rem) 0 4.5rem; min-height: 100vh; display: flex; flex-direction: column; background: var(--ink-2); position: relative; z-index: 3; }
html.gsap-on .history-pin { overflow: hidden; }
.history-head { margin-bottom: 1rem; }

.scroll-viewport { position: relative; flex: 1; display: flex; align-items: center; }
.scroll-track {
  display: flex; align-items: stretch; gap: clamp(1.6rem, 3vw, 3rem);
  padding: 3.2rem clamp(1.2rem, 6vw, 6rem) 3.6rem;
  width: max-content;
  background:
    radial-gradient(140% 100% at 0% 0%, rgba(183, 196, 186, .06), transparent 50%),
    linear-gradient(to bottom, #efe9d8, #e9e1cd);
  color: var(--text-dark);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
  border-top: 6px solid #d8cfb6; border-bottom: 6px solid #d8cfb6;
  position: relative;
}
.scroll-track::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");
}
html:not(.gsap-on) .scroll-track { flex-direction: column; width: auto; margin: 0 5vw; }

.hs-node {
  position: relative; flex: 0 0 auto; width: min(480px, 82vw);
  padding: 2rem 2rem 1.6rem; display: flex; flex-direction: column; gap: .7rem;
  border-left: 1px solid rgba(47, 93, 80, .25);
}
.hs-node:first-child { border-left: none; }
.hs-year {
  font-family: var(--font-serif); font-weight: 900; font-size: clamp(2.6rem, 5vw, 4rem);
  color: var(--pine); line-height: 1; letter-spacing: .02em;
}
.hs-key .hs-year { color: var(--cinnabar); }
.hs-node h3 { font-family: var(--font-serif); font-size: 1.25rem; color: var(--ink); letter-spacing: .04em; }
.hs-node p { font-size: .92rem; color: var(--text-soft); }
.hs-era { font-size: .8rem; letter-spacing: .3em; color: var(--bronze); font-weight: 500; }
.hs-note { font-size: 1.35rem; color: var(--cinnabar); transform: rotate(-2deg); margin-top: .4rem; }
.hs-year-seal {
  width: 64px; height: 64px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 10px;
  font-size: 1.05rem; letter-spacing: .05em; text-align: center; line-height: 1.25;
  transform: rotate(-4deg); box-shadow: 0 10px 24px -10px rgba(184, 69, 42, .6);
  padding: 6px;
}
.hs-year-seal.cinnabar { background: var(--cinnabar-deep); }
.hs-photo { margin-top: .8rem; border: 6px solid #fbf8ef; box-shadow: 0 14px 34px -14px rgba(29, 38, 32, .4); transform: rotate(-1.2deg); }
.hs-photo img { width: 100%; height: 210px; object-fit: cover; }
.hs-today { background: rgba(47, 93, 80, .06); border-radius: 0 16px 16px 0; }

.scroll-progress { margin: 2.4rem auto 0; width: min(420px, 70vw); height: 2px; background: rgba(233, 239, 230, .18); border-radius: 2px; overflow: hidden; }
.scroll-progress span { display: block; height: 100%; width: 0; background: var(--bronze-light); }

/* ============================================================
   Screen 4 · Business 主营产业
   ============================================================ */
.business { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper-warm); }
.biz-grid { display: flex; gap: 10px; height: min(76vh, 640px); min-height: 480px; padding: 0 clamp(1rem, 4vw, 3rem); }
.biz-card {
  position: relative; flex: 1; border-radius: 18px; overflow: hidden;
  cursor: pointer; isolation: isolate;
  transition: flex .8s var(--ease-out);
  box-shadow: 0 20px 50px -25px rgba(29, 38, 32, .5);
}
.biz-card:hover, .biz-card:focus-within { flex: 2.7; }
.biz-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.06); filter: saturate(.82) brightness(.86);
  transition: transform 1.1s var(--ease-out), filter .8s ease;
}
.biz-card:hover .biz-bg { transform: scale(1); filter: saturate(1) brightness(.96); }
.biz-card::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(20, 28, 23, .88) 0%, rgba(20, 28, 23, .35) 46%, rgba(20, 28, 23, .12) 100%);
  transition: background .6s ease;
}
.biz-sprout {
  position: absolute; z-index: 2; right: 8%; bottom: 34%; width: 60px; color: rgba(233, 239, 230, 0);
  transition: color .8s ease .1s;
}
.biz-card:hover .biz-sprout { color: rgba(233, 239, 230, .85); }
.biz-sprout svg { width: 100%; }
.sprout-stem, .sprout-leaf, .sprout-top { stroke-dasharray: 220; stroke-dashoffset: 220; transition: stroke-dashoffset 1.6s var(--ease-out) .15s; }
.biz-card:hover .sprout-stem, .biz-card:hover .sprout-leaf, .biz-card:hover .sprout-top { stroke-dashoffset: 0; }
.biz-content {
  position: absolute; z-index: 2; left: 0; right: 0; bottom: 0;
  padding: 1.8rem 1.7rem 1.6rem; color: var(--paper);
}
.biz-index {
  font-family: var(--font-en); font-size: .85rem; letter-spacing: .3em;
  color: var(--bronze-light); display: block; margin-bottom: .5rem;
}
.biz-card h3 { font-family: var(--font-serif); font-weight: 700; font-size: clamp(1.25rem, 2vw, 1.7rem); letter-spacing: .14em; margin-bottom: .3rem; white-space: nowrap; }
.biz-tag { font-size: .76rem; letter-spacing: .18em; color: rgba(233, 239, 230, .75); margin-bottom: .8rem; white-space: nowrap; }
.biz-desc {
  font-size: .88rem; color: rgba(233, 239, 230, .92); max-width: 34em;
  opacity: 0; transform: translateY(14px); transition: opacity .6s ease .18s, transform .6s var(--ease-out) .18s;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.biz-card:hover .biz-desc, .biz-card:focus-within .biz-desc { opacity: 1; transform: none; }

/* ============================================================
   Screen 5 · Network 产地与供应网络
   ============================================================ */
.network { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--ink); color: var(--paper); position: relative; overflow: hidden; }
.network::before {
  content: ""; position: absolute; inset: 0; opacity: .05; pointer-events: none;
  background-image:
    linear-gradient(to bottom, rgba(241,235,219,.45) 0%, rgba(241,235,219,0) 8%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}
.map-wrap { position: relative; width: min(1060px, 94vw); margin: 1rem auto 0; }
#china-map { width: 100%; height: auto; display: block; }
#china-outline {
  fill: rgba(143, 174, 152, .09); stroke: rgba(233, 239, 230, .55); stroke-width: 1.5;
  stroke-linejoin: round; stroke-linecap: round;
}
.inset-box { fill: rgba(29, 38, 32, .35); stroke: rgba(233, 239, 230, .4); stroke-width: 1.1; }
.dash-line { fill: none; stroke: rgba(233, 239, 230, .7); stroke-width: 2; stroke-linecap: round; }
.inset-label { fill: rgba(233, 239, 230, .65); font-size: 12px; font-family: var(--font-sans); letter-spacing: .15em; }
.map-route { fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-dasharray: 6 7; opacity: .75; }
.map-route.r1 { stroke: var(--cinnabar); }
.map-route.r2 { stroke: var(--bronze-light); }
.map-route.r3 { stroke: var(--sage); }
.marker { cursor: pointer; }
.marker-dot { transition: r .3s ease; }
.marker:hover .marker-dot, .marker.active .marker-dot { r: 9; }
.marker-ring { transform-box: fill-box; transform-origin: center; animation: ringPulse 2.6s ease-out infinite; }
@keyframes ringPulse { 0% { transform: scale(.4); opacity: .9; } 80%, 100% { transform: scale(2.1); opacity: 0; } }
.marker-label { fill: rgba(233, 239, 230, .85); font-size: 13px; font-family: var(--font-sans); letter-spacing: .08em; pointer-events: none; }
.map-tip {
  position: absolute; z-index: 5; min-width: 240px; max-width: 320px;
  background: rgba(247, 243, 232, .97); color: var(--text-dark);
  border-radius: 12px; padding: 1.1rem 1.25rem; box-shadow: 0 24px 60px -20px rgba(0, 0, 0, .6);
  border-top: 4px solid var(--cinnabar);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity .35s ease, transform .35s var(--ease-out);
}
.map-tip.show { opacity: 1; transform: none; pointer-events: auto; }
.map-tip h4 { font-family: var(--font-serif); font-size: 1.1rem; color: var(--ink); margin-bottom: .15rem; }
.map-tip .tip-role { font-size: .72rem; letter-spacing: .2em; color: var(--cinnabar); margin-bottom: .55rem; }
.map-tip p { font-size: .84rem; color: var(--text-soft); }
.map-tip p b { color: var(--pine); font-weight: 500; }
.map-legend {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.6rem; margin-top: 2.2rem;
  font-size: .82rem; color: rgba(233, 239, 230, .8);
}
.legend-item { display: flex; align-items: center; gap: .5rem; }
.legend-item b { font-weight: 500; letter-spacing: .08em; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-hq { background: var(--cinnabar); }
.dot-hub { background: var(--bronze-light); }
.dot-partner { background: var(--sage); }
.map-note { margin-left: auto; font-size: .74rem; opacity: .55; }

/* ============================================================
   Screen 6 · Quality 品质与加工
   ============================================================ */
.quality { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper); }
.q-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-bottom: 4rem; }
.q-item {
  background: #fff; border: 1px solid rgba(47, 93, 80, .12); border-radius: 14px;
  padding: 1.7rem 1.6rem 1.5rem; transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.q-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.q-item svg { width: 40px; height: 40px; color: var(--pine); margin-bottom: .9rem; }
.q-item h3 { font-family: var(--font-serif); font-size: 1.08rem; letter-spacing: .1em; color: var(--ink); margin-bottom: .4rem; }
.q-item p { font-size: .86rem; color: var(--text-soft); }

.q-feature {
  display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(1.6rem, 4vw, 3.5rem);
  align-items: center;
  background: var(--pine); border-radius: 22px; padding: clamp(1.8rem, 4vw, 3.2rem);
  color: var(--paper); margin-bottom: 4rem;
  box-shadow: 0 30px 70px -30px rgba(47, 93, 80, .55);
}
.q-feature-kicker { font-size: .74rem; letter-spacing: .34em; color: var(--bronze-light); margin-bottom: .8rem; }
.q-feature h3 { font-family: var(--font-serif); font-size: clamp(1.4rem, 2.6vw, 2rem); letter-spacing: .06em; margin-bottom: 1rem; }
.q-feature-text > p { font-size: .94rem; color: rgba(233, 239, 230, .85); margin-bottom: 1.4rem; }
.q-feature-list { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.q-feature-list li { font-size: .88rem; padding-left: 1.3rem; position: relative; }
.q-feature-list li::before { content: ""; position: absolute; left: 0; top: .58em; width: 7px; height: 7px; border-radius: 50%; background: var(--bronze-light); }
.q-feature-media video {
  width: 100%; border-radius: 14px; display: block; background: #101815;
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, .6);
}
.q-video-cap { text-align: center; font-size: .78rem; letter-spacing: .2em; color: rgba(233, 239, 230, .65); margin-top: .8rem; }

.q-macros { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }

/* Quality statement banner with video bg */
.q-statement {
  position: relative; height: 340px; border-radius: 20px; overflow: hidden;
  margin-bottom: 4rem; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
}
.q-statement-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
}
.q-statement-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(20, 28, 23, .65), rgba(20, 28, 23, .35));
}
.q-statement-text {
  position: relative; z-index: 2; color: var(--paper);
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem); letter-spacing: .14em;
  text-align: center; text-shadow: 0 2px 30px rgba(0, 0, 0, .5);
}
.q-macros figure { position: relative; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-card); }
.q-macros img { width: 100%; height: 300px; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.q-macros figure:hover img { transform: scale(1.05); }
.q-macros figcaption {
  position: absolute; left: 1.2rem; bottom: 1rem; color: var(--paper);
  font-family: var(--font-serif); letter-spacing: .2em; font-size: .95rem;
  text-shadow: 0 2px 14px rgba(0, 0, 0, .6);
}

/* ============================================================
   Screen 7 · Contact 归于庭院
   ============================================================ */
.contact { position: relative; padding: clamp(7rem, 14vh, 10rem) 0 0; background: var(--ink-2); color: var(--paper); overflow: hidden; }
.contact-bg {
  position: absolute; inset: 0;
  background: url('../assets/contact-courtyard.webp') center 60% / cover no-repeat;
  opacity: .5;
}
.contact::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(241,235,219,.3) 0%, rgba(241,235,219,0) 9%),
    linear-gradient(to bottom, rgba(29, 38, 32, .88), rgba(29, 38, 32, .55) 45%, rgba(29, 38, 32, .9));
}
.bamboo-shadow {
  position: absolute; right: -40px; top: -30px; width: clamp(260px, 34vw, 480px);
  color: rgba(10, 16, 12, .55); filter: blur(7px); pointer-events: none;
  transform-origin: top right;
  animation: sway 9s ease-in-out infinite alternate;
}
@keyframes sway { from { transform: rotate(-1.6deg) translateX(-6px); } to { transform: rotate(1.8deg) translateX(8px); } }
.contact-inner { position: relative; z-index: 2; }
.contact-card {
  margin-top: 1rem; max-width: 640px;
  background: rgba(16, 22, 19, .58);
  border: 1px solid rgba(233, 239, 230, .18);
  border-radius: 18px; padding: 2.2rem 2.4rem;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
}
.contact-row {
  display: grid; grid-template-columns: 110px 1fr; gap: 1rem; align-items: baseline;
  padding: .9rem 0; border-bottom: 1px solid rgba(233, 239, 230, .12);
}
.contact-row:last-of-type { border-bottom: none; }
.contact-key { font-size: .76rem; letter-spacing: .26em; color: var(--bronze-light); }
.contact-val { font-family: var(--font-serif); font-size: 1.12rem; letter-spacing: .05em; }
.contact-phone { font-size: 1.5rem; letter-spacing: .1em; color: var(--bronze-light); }
.contact-actions { display: flex; gap: 1rem; margin-top: 1.8rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .85rem 2.1rem; border-radius: 999px; font-size: .92rem; letter-spacing: .16em;
  transition: transform .35s var(--ease-out), box-shadow .35s ease, background .35s ease, color .35s ease;
  border: 1px solid transparent;
}
.btn-solid { background: var(--cinnabar); color: var(--paper); box-shadow: 0 14px 34px -12px rgba(184, 69, 42, .6); }
.btn-solid:hover { transform: translateY(-3px); background: var(--cinnabar-deep); }
.btn-line { background: transparent; color: var(--paper); border-color: rgba(233, 239, 230, .5); }
.btn-line:hover { transform: translateY(-3px); border-color: var(--bronze-light); color: var(--bronze-light); }
.footer {
  position: relative; z-index: 2; margin-top: clamp(4rem, 9vh, 6rem);
  border-top: 1px solid rgba(233, 239, 230, .14);
  padding: 2rem clamp(1.2rem, 4vw, 3rem) 2.4rem;
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  font-size: .8rem; color: rgba(233, 239, 230, .6); text-align: center; flex-wrap: wrap;
}
.footer-seal {
  width: 30px; height: 30px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 6px; font-size: .95rem;
}

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 2.4rem; z-index: 150;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--ink); color: var(--paper); border: 1px solid rgba(183, 196, 186, .5);
  padding: .7rem 1.5rem; border-radius: 999px; font-size: .85rem; letter-spacing: .1em;
  transition: opacity .4s ease, transform .4s var(--ease-out);
  box-shadow: 0 20px 50px -16px rgba(0, 0, 0, .5);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   Section Background Videos (Agnes AI generated)
   ============================================================ */
.section-bg-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0; pointer-events: none;
}
/* About section video: subtle, behind the existing bg layers */
.about .section-bg-video {
  opacity: .22;
}
.about .about-bg, .about .container { position: relative; z-index: 2; }

/* Network section video */
.network .section-bg-video {
  opacity: .18;
}
.network .container, .network .map-wrap, .network .map-legend { position: relative; z-index: 2; }

/* Quality section video */
.quality .section-bg-video {
  opacity: .12;
}
.quality .container { position: relative; z-index: 2; }

/* Contact section video */
.contact .section-bg-video {
  opacity: .35;
}
.contact .contact-bg, .contact .bamboo-shadow, .contact .container, .contact .footer { position: relative; z-index: 2; }

/* ============================================================
   Screen 7 · 实地影像 Field Films
   ============================================================ */
.media {
  padding: clamp(6rem, 12vh, 9rem) 0;
  background: var(--paper-warm);
  position: relative; overflow: hidden;
}
.media-feature {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 2rem;
  margin-top: 2rem; align-items: center;
}
.doc-video {
  width: 100%; aspect-ratio: 854 / 480; border-radius: 18px;
  background: #101613; box-shadow: var(--shadow-card); display: block;
}
.doc-copy { color: var(--ink); }
.doc-copy span { font-size: .72rem; letter-spacing: .14em; color: var(--cinnabar); font-weight: 600; }
.doc-copy h3 { font-family: var(--font-serif); font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 600; margin: .4rem 0 .6rem; letter-spacing: .04em; }
.doc-copy p { font-size: .92rem; color: var(--text-soft); line-height: 1.9; }
.doc-note { font-size: .74rem !important; color: var(--text-soft) !important; letter-spacing: .08em; margin-top: .9rem; padding-top: .9rem; border-top: 1px solid rgba(29, 38, 32, .14); }
.footage-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 2.2rem;
}
.footage-card {
  position: relative; border-radius: 16px; overflow: hidden;
  aspect-ratio: 427 / 320; cursor: pointer; isolation: isolate;
  box-shadow: var(--shadow-card);
}
.footage-card video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
  filter: saturate(.82) contrast(.98);
  transition: transform 1.2s var(--ease-out), filter .6s ease;
}
.footage-card:hover video { transform: scale(1.05); filter: saturate(1); }
.footage-card figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  display: flex; flex-direction: column; gap: .15rem;
  padding: 1.9rem .95rem .8rem;
  background: linear-gradient(to top, rgba(16, 22, 19, .82), transparent);
  color: var(--paper);
}
.footage-card figcaption b { font-family: var(--font-serif); font-size: .92rem; font-weight: 600; letter-spacing: .06em; }
.footage-card figcaption span { font-size: .64rem; letter-spacing: .12em; color: rgba(233, 239, 230, .66); }
.footage-play {
  position: absolute; right: .85rem; top: .85rem; z-index: 2;
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(16, 22, 19, .62); border: 1px solid rgba(233, 239, 230, .4);
  cursor: pointer;
  display: grid; place-items: center; transition: background .3s, transform .3s;
}
.footage-play i {
  width: 0; height: 0; margin-left: 2px;
  border-left: 10px solid var(--paper); border-top: 6.5px solid transparent; border-bottom: 6.5px solid transparent;
}
.footage-card:hover .footage-play { background: var(--cinnabar); transform: scale(1.08); }
.footage-card.playing .footage-play i {
  margin-left: 0; border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 9px solid var(--paper); border-bottom: none;
}
.media-note { margin-top: 1.6rem; font-size: .76rem; color: var(--text-soft); letter-spacing: .08em; }

/* ============================================================
   Section Transition Feather Zones
   Apple-keynote-style gradient blends between adjacent sections.
   ::after = top feather (blend into THIS section's bg from above)
   ::before = bottom feather (blend THIS section into the next)
   Dark→Light and Light→Dark transitions get a 120px soft gradient.
   ============================================================ */
section { position: relative; }

/* --- Top feathers: blend the PREVIOUS section's tone into this one --- */

/* About (light) receives dark hero from above */
.about::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.4) 50%, transparent 100%);
  opacity: .85;
}

/* History (dark) receives light about from above — feather the paper into ink */
.history::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper-warm) 0%, rgba(241,235,219,.3) 50%, transparent 100%);
}

/* Business (light) receives dark history from above */
.business::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink-2) 0%, rgba(35,47,39,.3) 50%, transparent 100%);
  opacity: .7;
}

/* Network (dark) receives light business from above - merged with noise texture */
/* The top feather is added to the existing .network::before below */

/* Quality (light) receives dark network from above */
.quality::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.3) 50%, transparent 100%);
  opacity: .6;
}

/* Media (light) receives light quality — subtle paper-tone blend */
.media::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper) 0%, rgba(247,243,232,.3) 50%, transparent 100%);
}

/* Contact (dark) receives light media from above - merged with existing dark overlay below */
/* The top feather is added to the existing .contact::before below */

/* --- Bottom feathers: blend this section into the NEXT one --- */

/* Hero (dark) blends into light About below */
.hero::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 4; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(247,243,232,.3) 50%, var(--paper) 100%);
}

/* About (light) blends into dark History below */
.about::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(35,47,39,.3) 50%, var(--ink-2) 100%);
  opacity: .8;
}

/* Business (light) blends into dark Network below */
.business::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink) 100%);
  opacity: .7;
}

/* Quality (light) blends into light Media below — subtle */
.quality::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.2) 50%, var(--paper-warm) 100%);
}

/* Media (light) blends into dark Contact below */
.media::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink-2) 100%);
  opacity: .7;
}

/* History bottom blends into Business (light) below — handled by scroll-track edge */
.history::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 3; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.25) 50%, var(--paper-warm) 100%);
}

/* --- Section entrance: fade/slide up on scroll (GSAP ScrollTrigger driven) --- */
.section-enter {
  opacity: 0; transform: translateY(40px);
  will-change: opacity, transform;
}
html.gsap-on .section-enter.gsap-revealed {
  opacity: 1; transform: none;
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .q-grid { grid-template-columns: repeat(2, 1fr); }
  .q-feature { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr 1fr; }
  .media-feature { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed; top: 0; right: 0; z-index: 99;
    flex-direction: column; gap: 1.6rem;
    background: rgba(29, 38, 32, .97); color: var(--paper);
    width: min(320px, 78vw); height: 100vh; padding: 6.5rem 2.4rem;
    transform: translateX(100%); transition: transform .5s var(--ease-out);
  }
  .nav-links.open { transform: none; }
  .nav-links a { font-size: 1.05rem; }
  .nav-burger { display: block; }
}

@media (max-width: 768px) {
  .values { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 1.8rem; }
  .biz-grid { flex-direction: column; height: auto; min-height: 0; }
  .biz-card { min-height: 300px; }
  .biz-card:hover { flex: 1; }
  .biz-desc { opacity: 1; transform: none; -webkit-line-clamp: unset; }
  .q-grid { grid-template-columns: 1fr; }
  .q-macros { grid-template-columns: 1fr; }
  .contact-row { grid-template-columns: 1fr; gap: .2rem; }
  .hero-seal { display: none; }
  .hs-photo img { height: 170px; }
  .map-note { margin-left: 0; }
  .media-grid { grid-template-columns: 1fr; }
  .press-card { min-height: 200px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-hint-line::after, .marker-ring, .bamboo-shadow { animation: none; }
  .biz-card, .biz-bg, .value, .q-item { transition: none; }
}

/* ============================================================
   Hero CTAs · 首屏行动按钮
   ============================================================ */
.hero-cta { display: flex; gap: .9rem; margin-top: 2.4rem; justify-content: center; flex-wrap: wrap; }
.hero-cta .btn { padding: .8rem 2rem; font-size: .82rem; letter-spacing: .18em; }

/* ============================================================
   Screen 4 · 主营品种 Herb Catalog
   ============================================================ */
.catalog { padding: clamp(6rem, 12vh, 9rem) 0 clamp(4rem, 8vh, 6rem); background: var(--paper); position: relative; overflow: hidden; }
.catalog-strip-wrap { position: relative; margin-top: 2.6rem; }
.catalog-strip-wrap::before, .catalog-strip-wrap::after {
  content: ""; position: absolute; top: 0; bottom: 0; z-index: 2; width: 7vw; pointer-events: none;
}
.catalog-strip-wrap::before { left: 0; background: linear-gradient(to right, var(--paper), transparent); }
.catalog-strip-wrap::after { right: 0; background: linear-gradient(to left, var(--paper), transparent); }
.catalog-strip {
  display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: .6rem clamp(1rem, 4vw, 3rem) 1.2rem;
  scrollbar-width: none; -ms-overflow-style: none; cursor: grab;
}
.catalog-strip::-webkit-scrollbar { display: none; }
.catalog-strip.dragging { cursor: grabbing; scroll-snap-type: none; }
.herb-card {
  flex: 0 0 clamp(240px, 22vw, 300px); scroll-snap-align: start;
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(47, 93, 80, .14);
  border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.herb-card:hover { transform: translateY(-6px); box-shadow: 0 26px 60px -20px rgba(29, 38, 32, .45); }
.herb-img { position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: var(--paper-deep); }
.herb-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 1.4s var(--ease-out); }
.herb-card:hover .herb-img img { transform: scale(1.06); }
.herb-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(16, 22, 19, .32), transparent 45%);
}
.herb-body { padding: 1.15rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.herb-body h3 {
  font-family: var(--font-serif); font-size: 1.18rem; font-weight: 700;
  color: var(--ink); letter-spacing: .08em;
  display: flex; align-items: baseline; gap: .55rem; flex-wrap: wrap;
}
.herb-body h3 em {
  font-family: var(--font-en); font-style: italic; font-weight: 500;
  font-size: .68rem; letter-spacing: .04em; color: var(--text-soft);
}
.herb-note { font-size: .8rem; color: var(--text-soft); margin: .45rem 0 .8rem; line-height: 1.7; }
.herb-body ul { list-style: none; display: flex; flex-direction: column; gap: .42rem; margin-top: auto; }
.herb-body li { display: flex; align-items: baseline; gap: .55rem; font-size: .78rem; color: var(--text-soft); }
.herb-body li b {
  font-family: var(--font-serif); font-size: 1.06rem; color: var(--pine);
  min-width: 2.6em; text-align: right; letter-spacing: .02em;
}
.herb-body li span { line-height: 1.55; }
.herb-season {
  align-self: flex-start; margin-top: .95rem;
  font-size: .66rem; letter-spacing: .16em; color: var(--cinnabar);
  border: 1px solid rgba(184, 69, 42, .35); border-radius: 999px;
  padding: .28rem .8rem;
}
.herb-more {
  flex-basis: clamp(220px, 18vw, 260px);
  background: linear-gradient(160deg, var(--pine) 0%, var(--ink-3) 100%);
  border: none; justify-content: center;
}
.herb-more h3 { color: var(--paper); font-size: 1.3rem; }
.herb-more .herb-note { color: rgba(233, 239, 230, .8); font-size: .82rem; line-height: 1.9; }
.herb-more .text-link { margin-top: 1rem; align-self: flex-start; }
.text-link {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .78rem; letter-spacing: .1em; font-weight: 600;
  transition: color .3s;
}
.catalog .text-link, .light-text .text-link { color: var(--cinnabar); }
.catalog .text-link:hover { color: var(--cinnabar-deep); }
.herb-more .text-link { color: var(--bronze-light); }
.herb-more .text-link:hover { color: var(--paper); }

@media (max-width: 900px) {
  .media-feature { grid-template-columns: 1fr; }
  .footage-grid { grid-template-columns: 1fr 1fr; }
  .herb-card, .herb-more { flex-basis: 74vw; }
  .catalog-strip-wrap::before, .catalog-strip-wrap::after { width: 4vw; }
}
@media (max-width: 560px) {
  .footage-grid { grid-template-columns: 1fr; }
  .footage-card { aspect-ratio: 854 / 480; }
  .hero-cta .btn { padding: .72rem 1.4rem; }
}

/* ============================================================
   视觉升级 · 宋版书与朱印  Aesthetic Pass
   ============================================================ */

/* —— 全局：纸张颗粒 + 选区 + 滚动条 —— */
::selection { background: rgba(184, 69, 42, .85); color: var(--paper); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-warm); }
::-webkit-scrollbar-thumb { background: rgba(47, 93, 80, .35); border-radius: 5px; border: 2px solid var(--paper-warm); }
::-webkit-scrollbar-thumb:hover { background: var(--pine); }

/* —— 首屏：提亮 + 暖金晨光 + 更有层次的字 —— */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(183, 196, 186, .20), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(23, 33, 26, .30), transparent 60%);
  mix-blend-mode: screen;
}
.hero-title {
  font-size: clamp(2.3rem, 6.8vw, 5rem);
  text-shadow: 0 6px 60px rgba(10, 16, 12, .55), 0 1px 0 rgba(0, 0, 0, .25);
}
.hero-eyebrow { display: inline-flex; align-items: center; gap: 1rem; }
.hero-eyebrow::before, .hero-eyebrow::after {
  content: ""; width: clamp(28px, 6vw, 72px); height: 1px;
  background: linear-gradient(to right, transparent, var(--bronze-light));
}
.hero-eyebrow::after { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-tagline {
  background: linear-gradient(105deg, #f2ead8 15%, var(--bronze-light) 50%, #f2ead8 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-cta .btn-solid { box-shadow: 0 18px 44px -14px rgba(184, 69, 42, .75); }

/* 首屏右侧竖排诗句 */
.hero-verse {
  position: absolute; z-index: 6; right: clamp(4.6rem, 9vw, 8.2rem); top: 50%;
  transform: translateY(-54%);
  display: flex; flex-direction: column; gap: 1.3rem;
  writing-mode: vertical-rl; letter-spacing: .58em;
  font-family: var(--font-serif); font-size: 1.02rem; color: rgba(233, 239, 230, .8);
  text-shadow: 0 2px 18px rgba(10, 16, 12, .8);
  border-right: 1px solid rgba(183, 196, 186, .4); padding-right: 1.05rem;
}
.hero-verse span:last-child { color: var(--bronze-light); }
@media (max-width: 980px) { .hero-verse { display: none; } }

/* —— 章节标题：大字水印 + 标签章 —— */
.sec-title { position: relative; }
.sec-title[data-wm]::before {
  content: attr(data-wm);
  position: absolute; z-index: -1;
  top: -0.62em; left: -0.34em;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(6.5rem, 15vw, 13rem); line-height: 1;
  color: rgba(29, 38, 32, .055);
  pointer-events: none; user-select: none;
}
.sec-title.light[data-wm]::before { color: rgba(233, 239, 230, .075); }
.sec-title { z-index: 1; } /* ensure stacking above wm */
.container { position: relative; }
.sec-label { display: inline-flex; align-items: center; gap: .7rem; }
.sec-label::before {
  content: ""; width: 10px; height: 10px; border-radius: 3px;
  background: var(--cinnabar); box-shadow: 0 0 0 1px rgba(184, 69, 42, .35), inset 0 0 0 2px rgba(247, 243, 232, .35);
}
.sec-label.light::before { background: var(--bronze-light); box-shadow: 0 0 0 1px rgba(183, 196, 186, .4), inset 0 0 0 2px rgba(29, 38, 32, .3); }

/* —— 数据与卡片细节 —— */
.stat-num { background: linear-gradient(120deg, var(--pine) 30%, #3e7263 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.value-mark { box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .22), 0 10px 24px -12px rgba(47, 93, 80, .55); }
.herb-seal {
  position: absolute; z-index: 2; top: .8rem; right: .8rem;
  writing-mode: vertical-rl; letter-spacing: .3em;
  font-family: var(--font-serif); font-weight: 700; font-size: .72rem;
  color: #f7f3e8; background: rgba(184, 69, 42, .92);
  padding: .5rem .34rem .34rem; border-radius: 6px;
  box-shadow: 0 6px 18px -6px rgba(0, 0, 0, .45), inset 0 0 0 1px rgba(247, 243, 232, .3);
}
.herb-more { position: relative; overflow: hidden; }
.herb-more::before {
  content: "药"; position: absolute; right: -1.2rem; bottom: -2.4rem;
  font-family: var(--font-serif); font-weight: 900; font-size: 9rem; line-height: 1;
  color: rgba(233, 239, 230, .07); pointer-events: none;
}
.footage-card::before {
  content: attr(data-idx);
  position: absolute; z-index: 3; left: .85rem; top: .78rem;
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 6px; font-family: var(--font-serif); font-weight: 700; font-size: .82rem;
  color: var(--paper); background: rgba(16, 22, 19, .66);
  border: 1px solid rgba(183, 196, 186, .5);
  pointer-events: none;
}

/* —— 品质宣言字 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2ead8 20%, var(--bronze-light) 55%, #f2ead8 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 导航细节 —— */
.nav.on-dark.scrolled {
  background: rgba(20, 28, 23, .72);
  box-shadow: 0 1px 0 rgba(233, 239, 230, .1), 0 10px 40px -20px rgba(0, 0, 0, .5);
}
.nav-seal { transition: transform .6s var(--ease-out); }
.nav-brand:hover .nav-seal { transform: rotate(-8deg) scale(1.06); }

/* —— 按钮统一细节 —— */
.btn { position: relative; overflow: hidden; }
.btn-solid::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(247, 243, 232, .35), transparent);
  transform: skewX(-22deg); transition: left .7s var(--ease-out);
}
.btn-solid:hover::after { left: 130%; }

@media (prefers-reduced-motion: reduce) {
  .btn-solid::after { display: none; }
  .nav-seal { transition: none; }
}

/* ============================================================
   大改 2.0 · 沉浸式交互层  Immersive Layer
   ============================================================ */

/* —— 开屏：墨滴 + 印章 + 计数 —— */
.preloader { flex-direction: column; gap: 1.6rem; }
.preloader-seal { display: none; }
.pre-ink { position: relative; width: 120px; height: 120px; display: grid; place-items: center; }
.pre-blot {
  position: absolute; inset: 0; border-radius: 46% 54% 52% 48% / 55% 48% 52% 45%;
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .28), rgba(29, 38, 32, .92) 62%);
  transform: scale(0); animation: blot 1.5s var(--ease-out) .1s forwards;
  filter: blur(1px);
}
@keyframes blot {
  0% { transform: scale(0) rotate(-8deg); }
  62% { transform: scale(1.06) rotate(2deg); }
  100% { transform: scale(1) rotate(0deg); }
}
.pre-seal {
  position: relative; color: var(--paper); font-size: 3.2rem;
  opacity: 0; animation: sealIn .8s var(--ease-out) 1s forwards;
  text-shadow: 0 4px 24px rgba(0, 0, 0, .5);
}
@keyframes sealIn { from { opacity: 0; transform: scale(1.7); } to { opacity: 1; transform: scale(1); } }
.pre-count {
  position: absolute; right: clamp(1.2rem, 4vw, 3rem); bottom: clamp(1rem, 3vh, 2rem);
  font-family: var(--font-en); font-size: .95rem; letter-spacing: .3em; color: var(--bronze-light);
}

/* —— 首屏：墨池 + 描边大字 —— */
#ink-canvas { position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; display: block; pointer-events: none; }
.hero-outline {
  position: absolute; z-index: 1; left: 50%; top: 50%; transform: translate(-50%, -52%);
  display: flex; gap: 1.2em; pointer-events: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(11rem, 34vw, 30rem); line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(233, 239, 230, .13);
  user-select: none;
}
.hero-outline span { display: block; }
.hero-outline span:last-child { transform: translateY(.18em); }
@media (max-width: 980px) { .hero-outline { font-size: clamp(7rem, 30vw, 12rem); } }

/* —— 逐字动效 —— */
.hero-title .ch, .sec-title .ch { display: inline-block; }
.reveal .ch { opacity: 0; }
.reveal.on .ch {
  animation: chIn .9s var(--ease-out) var(--d, 0ms) both;
}
@keyframes chIn {
  from { opacity: 0; transform: translateY(.6em) rotate(4deg); filter: blur(10px); }
  to { opacity: 1; transform: none; filter: blur(0); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal .ch { opacity: 1; }
  .reveal.on .ch { animation: none; }
}

/* —— 动态字带 —— */
.marquee {
  position: relative; overflow: hidden; padding: 1.15rem 0;
  background: var(--ink); border-top: 1px solid rgba(183, 196, 186, .25); border-bottom: 1px solid rgba(183, 196, 186, .25);
}
.marquee-track {
  display: flex; width: max-content; gap: 3.2rem;
  animation: mq 46s linear infinite;
}
.marquee-track span {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.6rem); letter-spacing: .3em;
  color: var(--paper); white-space: nowrap;
}
.marquee-track span em { font-style: normal; font-size: .5em; color: var(--cinnabar); margin-left: 3.2rem; vertical-align: .35em; }
.marquee-track .hollow { color: transparent; -webkit-text-stroke: 1px rgba(183, 196, 186, .75); }
.marquee-track .hollow em { -webkit-text-stroke: 0; }
@keyframes mq { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }
.marquee-dark { background: var(--paper-deep); border-color: rgba(29, 38, 32, .12); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(184, 69, 42, .6); }
.marquee-dark .marquee-track span em { color: rgba(184, 69, 42, .8); }

/* —— 巨型 CTA（联系） —— */
.giant-cta {
  display: block; margin: 1.2rem 0 2.6rem; text-decoration: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.6rem, 8.5vw, 7rem); line-height: 1.15; letter-spacing: .12em;
  color: transparent; -webkit-text-stroke: 1.5px rgba(233, 239, 230, .8);
  position: relative; overflow: hidden; width: fit-content;
  transition: color .5s var(--ease-out);
}
.giant-cta::after {
  content: "WALK THE SEASONS WITH US"; position: absolute; left: .1em; bottom: -1.1em;
  font-family: var(--font-en); font-weight: 600; font-style: italic;
  font-size: .16em; letter-spacing: .6em; color: rgba(183, 196, 186, .85);
  -webkit-text-stroke: 0; white-space: nowrap;
}
.giant-cta .giant-cta-t { position: relative; z-index: 1; }
.giant-cta::before {
  content: ""; position: absolute; z-index: 0; inset: 0;
  background: linear-gradient(100deg, var(--bronze-light), #e8d5a8);
  transform: translateX(-101%); transition: transform .7s var(--ease-out);
  -webkit-background-clip: text;
}
.giant-cta:hover, .giant-cta:focus-visible { color: var(--bronze-light); -webkit-text-stroke-color: transparent; }
.giant-cta:hover::before { transform: translateX(0); }

/* —— 滚动印章 —— */
.scroll-seal {
  position: fixed; right: 1.35rem; top: 50%; transform: translateY(-50%);
  z-index: 90; display: flex; flex-direction: column; align-items: center; gap: .8rem;
  pointer-events: none;
}
.scroll-seal > span {
  width: 34px; height: 34px; display: grid; place-items: center;
  background: rgba(184, 69, 42, .92); color: var(--paper);
  font-size: 1.05rem; border-radius: 8px;
  box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .3), 0 8px 20px -8px rgba(0, 0, 0, .5);
}
.scroll-seal i {
  width: 1px; height: clamp(90px, 22vh, 190px);
  background: linear-gradient(to bottom, rgba(183, 196, 186, .8), rgba(183, 196, 186, .1));
  transform: scaleY(0); transform-origin: top;
}
@media (max-width: 980px) { .scroll-seal { display: none; } }

/* —— 墨点光标 —— */
@media (pointer: fine) {
  html.has-cursor, html.has-cursor body { cursor: none; }
  html.has-cursor a, html.has-cursor button, html.has-cursor video { cursor: none; }
}
.cursor-dot, .cursor-ring {
  position: fixed; left: 0; top: 0; z-index: 1000; pointer-events: none;
  opacity: 0; transition: opacity .3s;
}
.cursor-dot {
  width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px; border-radius: 50%;
  background: var(--cinnabar);
}
.cursor-ring {
  width: 40px; height: 40px; margin: -20px 0 0 -20px; border-radius: 50%;
  border: 1.5px solid rgba(183, 196, 186, .8);
  display: grid; place-items: center;
  transition: opacity .3s, width .35s var(--ease-out), height .35s var(--ease-out),
              margin .35s var(--ease-out), background .35s, border-color .35s;
}
.cursor-ring b {
  font-family: var(--font-serif); font-weight: 700; font-size: .82rem; color: var(--paper);
  opacity: 0; transform: scale(.5); transition: opacity .25s, transform .25s var(--ease-out);
}
.cursor-ring.on {
  width: 64px; height: 64px; margin: -32px 0 0 -32px;
  background: rgba(184, 69, 42, .92); border-color: transparent;
}
.cursor-ring.on b { opacity: 1; transform: scale(1); }
.cursor-ring.big {
  width: 76px; height: 76px; margin: -38px 0 0 -38px;
  border-color: var(--bronze-light);
}
.cursor-ring.press { transform-origin: center; }

/* —— 磁吸倾斜：高光跟随指针（biz 用 .biz-bg::after，herb 用卡片 ::after） —— */
.biz-card, .herb-card { transform-style: preserve-3d; will-change: transform; }
.biz-card.tilting, .herb-card.tilting { transition: none !important; }
.biz-bg::after, .herb-card::after {
  content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none; opacity: 0;
  border-radius: inherit;
  background: radial-gradient(340px circle at var(--gx, 50%) var(--gy, 50%), rgba(247, 243, 232, .17), transparent 65%);
  transition: opacity .4s;
}
.biz-card.tilting .biz-bg::after, .herb-card.tilting::after { opacity: 1; }

/* —— 品种条指针样式 —— */
.catalog-strip[data-cursor] { cursor: grab; }
.catalog-strip.dragging { cursor: grabbing !important; }

/* —— 交互细节补 —— */
.biz-card { transition: flex .8s var(--ease-out), transform .6s var(--ease-out); }
body.lang-en .giant-cta::after { display: none; }
body.lang-en .giant-cta { -webkit-text-stroke-color: rgba(233, 239, 230, .8); }
.cursor-ring.press { width: 30px; height: 30px; margin: -15px 0 0 -15px; }

/* ============================================================
   3.0 视觉系统重制 · 琥珀档案  Amber Archive
   诊断：旧版（米纸+衬线+赤陶）命中 AI 模板脸。重制为：
   药材琥珀/黄芩金主色 + 特粗黑体编辑排版 + 批号档案系统 + 硬对比。
   ============================================================ */

/* —— 令牌覆盖 —— */
:root {
  --paper: #faf8f2;
  --paper-warm: #f3f0e6;
  --paper-deep: #e9e4d2;
  --ink: #17150e;
  --ink-2: #221f15;
  --ink-3: #302b1d;
  --text-dark: #201d14;
  --text-soft: #55503f;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --cinnabar: #b8452a;   /* 仅保留印章语义 */
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* —— 排版：特粗黑体编辑系统 —— */
.hero-title, .sec-title {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: .015em;
}
.hero-title { font-size: clamp(2.4rem, 7.4vw, 5.6rem); }
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: var(--amber); }
body.lang-en .hero-title, body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; }
.sec-title { font-size: clamp(2rem, 4.6vw, 3.4rem); }
.sec-lead { color: var(--text-soft); font-size: 1.05rem; }

/* —— 章节标签：档案索引 —— */
.sec-label {
  color: var(--amber-deep);
  font-weight: 700; letter-spacing: .3em; font-size: .78rem;
  font-variant-numeric: tabular-nums;
}
.sec-label.light { color: var(--bronze-light); }
.sec-label::before { display: none; }
.sec-label::after {
  content: ""; width: clamp(40px, 7vw, 90px); height: 1px;
  background: currentColor; opacity: .5; margin-left: .4rem;
}

/* —— 大字水印 → 巨型轮廓数字 —— */
.sec-title[data-wm]::before {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(9rem, 22vw, 19rem);
  top: -0.5em; left: -0.18em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(23, 21, 14, .1);
}
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 226, 204, .14); color: transparent; }

/* —— 首屏重排：干净 + 大字 + 琥珀 —— */
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(183, 196, 186, .22), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(15, 13, 8, .38), transparent 60%);
}
.hero-eyebrow { color: var(--bronze-light); letter-spacing: .5em; }
.hero-tagline {
  background: linear-gradient(100deg, #f5efdd 20%, var(--bronze-light) 55%, #f5efdd 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-family: var(--font-display); font-weight: 700; letter-spacing: .3em;
}
.hero-sub { color: rgba(238, 233, 216, .92); font-weight: 400; letter-spacing: .28em; }
.hero-cta .btn-solid {
  background: var(--ink); color: #f2edda;
  box-shadow: 0 18px 44px -14px rgba(0, 0, 0, .65);
}
.hero-cta .btn-solid:hover { background: var(--amber-deep); }
.hero-cta .btn-line { border-color: rgba(233, 226, 204, .45); color: #f2edda; }
.hero-cta .btn-line:hover { border-color: var(--bronze-light); color: var(--bronze-light); }

/* —— 字带：墨底珀金 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .35); }
.marquee-track span { color: #f2edda; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .8); color: transparent; }
.marquee-track span em { color: var(--amber); }
.marquee-dark { background: var(--paper-deep); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(111, 125, 114, .7); }

/* —— 巨型 CTA —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 233, 216, .85); font-family: var(--font-display); letter-spacing: .06em; }
.giant-cta::before { background: linear-gradient(100deg, var(--amber), #e8c56a); }
.giant-cta:hover, .giant-cta:focus-visible { color: var(--amber); }

/* —— 数据与卡片 —— */
.stat-num { background: linear-gradient(120deg, var(--ink) 30%, #4a3f22 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: var(--amber-deep); }
.value-mark { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(242, 237, 218, .2); }
.value { border-color: rgba(23, 21, 14, .12); }
.value:hover { box-shadow: 0 24px 60px -24px rgba(23, 21, 14, .3); }

/* —— 品种卡：标本批号 —— */
.herb-lot {
  display: block; margin: .3rem 0 .5rem;
  font-size: .62rem; letter-spacing: .14em; color: var(--amber-deep);
  font-variant-numeric: tabular-nums; font-weight: 500;
  padding-bottom: .5rem; border-bottom: 1px dashed rgba(111, 125, 114, .3);
}
.herb-body h3 { letter-spacing: .04em; }
.herb-season { color: var(--amber-deep); border-color: rgba(111, 125, 114, .4); }
.herb-more { background: linear-gradient(165deg, #262216, #17150e); }
.herb-more::before { color: rgba(183, 196, 186, .08); }

/* —— 品质宣言 / 图表 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2edda 20%, var(--amber) 55%, #f2edda 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hs-year { color: var(--ink); }
.hs-node .hs-note { color: var(--amber-deep); }

/* —— 印章体系：朱砂仅限印 —— */
.scroll-seal > span { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0,0,0,.5); }
.scroll-seal i { background: linear-gradient(to bottom, var(--amber), rgba(183, 196, 186, .08)); }

/* —— 光标：琥珀 —— */
.cursor-dot { background: var(--amber); }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: var(--amber); }
.cursor-ring.on { background: var(--ink); }
.cursor-ring.on b { color: var(--amber); }

/* —— 导航 / 滚动条 —— */
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: var(--amber-deep); }
.nav.on-dark.scrolled { background: rgba(20, 18, 12, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .16); }
.nav-links a.active { color: var(--amber); }

/* —— 按钮扫光保留，实底换墨色 —— */
.btn-solid { background: var(--ink); }
.btn-solid:hover { background: var(--amber-deep); }

/* —— 地图图例 —— */
.dot-hub { background: var(--amber) !important; }
.dot-partner { background: #8a7b54 !important; }

/* —— 开屏：墨滴换琥珀晕 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .5), rgba(23, 21, 14, .95) 62%);
}
.pre-count { color: var(--amber); }

/* —— 3.0 补：旧松绿系令牌收敛为乌木/橄榄金 —— */
:root {
  --pine: #33401f;
  --pine-bright: #5b6c33;
  --sage: #a3945f;
}
#china-outline { fill: rgba(183, 196, 186, .07); stroke: rgba(236, 229, 206, .5); }
.inset-box { fill: rgba(23, 21, 14, .35); }

/* ============================================================
   手机端专项优化 Mobile Pass
   ============================================================ */
@media (max-width: 760px) {
  /* 首屏：更大字号、收紧留白、CTA 满宽 */
  .hero-inner { padding: 0 7vw; }
  .hero-title { font-size: clamp(1.75rem, 8.6vw, 2.6rem); letter-spacing: .02em; line-height: 1.28; }
  .hero-tagline { font-size: clamp(1.05rem, 4.6vw, 1.4rem); letter-spacing: .22em; }
  .hero-sub { font-size: .8rem; letter-spacing: .12em; line-height: 1.9; }
  .hero-eyebrow { letter-spacing: .34em; margin-bottom: 1.4rem; }
  .hero-cta { margin-top: 1.9rem; gap: .7rem; }
  .hero-cta .btn { width: min(320px, 78vw); justify-content: center; }
  .hero-seal { transform: scale(.82); transform-origin: bottom right; }
  .scroll-hint { bottom: 1.4rem; }

  /* 章节头：字号与水印收敛 */
  .sec-title { font-size: clamp(1.55rem, 6.4vw, 2.1rem); }
  .sec-title[data-wm]::before { font-size: clamp(5.6rem, 26vw, 8rem); top: -0.55em; left: -0.1em; }
  .sec-lead { font-size: .95rem; line-height: 2; }
  .sec-label { letter-spacing: .2em; font-size: .7rem; }

  /* 品种卡与标签 */
  .herb-card, .herb-more { flex-basis: 76vw; }
  .herb-lot { font-size: .58rem; letter-spacing: .1em; }
  .herb-body h3 { font-size: 1.08rem; }

  /* 数据/数值 */
  .stats { row-gap: 1.5rem; }
  .stat-num { font-size: clamp(1.6rem, 7vw, 2.2rem); }

  /* 巨型 CTA */
  .giant-cta { font-size: clamp(1.9rem, 10.5vw, 3rem); letter-spacing: .08em; }
  .giant-cta::after { font-size: .14em; letter-spacing: .4em; }

  /* 字带 */
  .marquee-track span { font-size: 1.15rem; letter-spacing: .22em; }

  /* 纪录片与实拍卡说明 */
  .doc-copy p { line-height: 2; }
  .footage-card figcaption b { font-size: .84rem; }

  /* 联系卡 */
  .contact-card { padding: 1.4rem 1.2rem; }

  /* 开屏 */
  .pre-ink { width: 96px; height: 96px; }
  .pre-seal { font-size: 2.6rem; }
}
@media (max-width: 400px) {
  .hero-title { font-size: 1.62rem; }
  .hero-cta .btn { width: 86vw; }
}

/* —— 性能：低可见度背景视频改静态图（免解码） —— */
.section-bg-img {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  pointer-events: none;
}
.network-bg-img { opacity: .18; background-image: url('../assets/clip-network-poster.jpg'); }
.quality-bg-img { opacity: .12; background-image: url('../assets/clip-quality-poster.jpg'); }

/* —— 修复：发展历程移动端白屏（轨道无裁剪溢出，v4 起遗留） —— */
@media (max-width: 768px) {
  .history-pin { min-height: 0; padding: clamp(4rem, 9vh, 6rem) 0 3rem; }
  .scroll-viewport {
    overflow-x: auto; overflow-y: hidden;
    scrollbar-width: none; -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  .scroll-viewport::-webkit-scrollbar { display: none; }
  .scroll-track { padding: 1.4rem 1.3rem 1.8rem; gap: 1.2rem; }
  .hs-node { width: 78vw; scroll-snap-align: center; padding: 1.6rem 1.4rem 1.4rem; }
  .scroll-progress { display: none; }
}

/* —— 主营产业实拍角标 —— */
.biz-real-tag {
  position: absolute; z-index: 3; top: .9rem; right: .9rem;
  writing-mode: vertical-rl; letter-spacing: .28em;
  font-family: var(--font-serif); font-weight: 700; font-size: .7rem;
  color: #f2edda; background: rgba(23, 21, 14, .68);
  border: 1px solid rgba(183, 196, 186, .55);
  padding: .5rem .32rem .34rem; border-radius: 6px;
}

/* —— 客户信任句 —— */
.clients-note {
  margin-top: 2.2rem; font-size: .8rem; letter-spacing: .06em;
  color: var(--text-soft); text-align: center;
}

/* ============================================================
   4.0 · 黛山月色 Moonlit Pine —— 去金改冷，收敛金属感
   炭墨绿主导 + 月银灰点缀 + 朱砂仅存印章；文字渐变改象牙白。
   ============================================================ */
:root {
  --paper: #f7f6f0;
  --paper-warm: #f0efe7;
  --paper-deep: #e5e4d8;
  --ink: #121a17;
  --ink-2: #17211d;
  --ink-3: #1f2b26;
  --text-dark: #1b211e;
  --text-soft: #4d564f;
  --pine: #2e4a3e;
  --pine-bright: #47685a;
  --sage: #9db3a6;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
}

/* —— 首屏 —— */
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: #ccd8cf; }
.hero-eyebrow { color: #c3cfc6; }
.hero-tagline {
  background: linear-gradient(100deg, #f4f6f1 20%, #ccd8cf 55%, #f4f6f1 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: rgba(240, 242, 236, .92); }
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(190, 205, 196, .16), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(8, 12, 10, .42), transparent 60%);
}
.hero-cta .btn-solid {
  background: #eef1ea; color: #121a17;
  box-shadow: 0 18px 44px -16px rgba(0, 0, 0, .55);
}
.hero-cta .btn-solid:hover { background: #ffffff; color: #121a17; }
.hero-cta .btn-line { border-color: rgba(233, 238, 233, .4); color: #eef1ea; }
.hero-cta .btn-line:hover { border-color: #b7c4ba; color: #ccd8cf; }
.btn-solid { background: #eef1ea; color: #121a17; }
.btn-solid:hover { background: #ffffff; }
.btn-solid::after {
  background: linear-gradient(100deg, transparent, rgba(18, 26, 23, .12), transparent);
}

/* —— 章节体系 —— */
.sec-label { color: #5c6f63; }
.sec-label.light { color: #b7c4ba; }
.sec-title[data-wm]::before { -webkit-text-stroke: 1.5px rgba(18, 26, 23, .1); }
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 236, 229, .13); }

/* —— 字带 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .22); }
.marquee-track span { color: #eef0ea; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .75); color: transparent; }
.marquee-track span em { color: var(--cinnabar); }
.marquee-dark .marquee-track span em { color: #8a4530; }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(46, 74, 62, .75); }

/* —— 巨型 CTA / 宣言 —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 240, 234, .85); }
.giant-cta::before { background: linear-gradient(100deg, #eef0ea, #ffffff); }
.giant-cta:hover, .giant-cta:focus-visible { color: #f2f4ee; }
.q-statement-text {
  background: linear-gradient(100deg, #eef0ea 20%, #b7c4ba 55%, #eef0ea 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 数据/卡片细节 —— */
.stat-num { background: linear-gradient(120deg, #1b211e 30%, #3d4a42 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: #6f7d72; }
.herb-lot { color: #5c6f63; border-bottom-color: rgba(111, 125, 114, .32); }
.herb-season { color: #54685b; border-color: rgba(84, 104, 91, .42); }
.herb-more { background: linear-gradient(165deg, #1a2621, #121a17); }
.herb-more::before { color: rgba(183, 196, 186, .07); }
.hs-node .hs-note { color: #54685b; }

/* —— 印章/光标/滚动条 —— */
.scroll-seal > span { background: #121a17; box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0, 0, 0, .5); }
.scroll-seal i { background: linear-gradient(to bottom, #b7c4ba, rgba(183, 196, 186, .08)); }
.cursor-dot { background: #e8ebe4; }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: #b7c4ba; }
.cursor-ring.on { background: #121a17; }
.cursor-ring.on b { color: #ccd8cf; }
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: #6f7d72; }
.nav.on-dark.scrolled { background: rgba(14, 20, 17, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .14); }

/* —— 地图 / 实拍 —— */
#china-outline { fill: rgba(183, 196, 186, .06); stroke: rgba(233, 238, 233, .5); }
.footage-card::before { border-color: rgba(183, 196, 186, .5); }

/* —— 开屏 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .35), rgba(18, 26, 23, .95) 62%);
}
.pre-count { color: #b7c4ba; }

/* —— 品种卡印章/尾卡链接 —— */
.herb-seal { background: rgba(184, 69, 42, .92); }
.herb-more .text-link { color: #b7c4ba; }
.herb-more .text-link:hover { color: #eef0ea; }

/* ============================================================
   8.0 · 获奖语法  Award Grammar
   混合模式光标 / 编辑排版不对称 / 更克制的高级细节
   ============================================================ */

/* —— 光标：difference 反色，更小更利落 —— */
.cursor-dot {
  width: 6px; height: 6px; margin: -3px 0 0 -3px; background: #f2f4ee;
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .45);
}
.cursor-ring {
  width: 34px; height: 34px; margin: -17px 0 0 -17px;
  border: 1px solid rgba(230, 236, 230, .9);
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .18);
}
.cursor-ring.on { width: 62px; height: 62px; margin: -31px 0 0 -31px; background: rgba(18, 26, 23, .88); border-color: transparent; }
.cursor-ring.on b { color: #fff; }
.cursor-ring.big { width: 64px; height: 64px; margin: -32px 0 0 -32px; }
.cursor-ring.press { width: 26px; height: 26px; margin: -13px 0 0 -13px; }

/* —— 磁吸按钮过渡 —— */
.btn, .nav-links a, .footage-play, .lang-toggle { transition: transform .45s cubic-bezier(.22, .8, .32, 1), background .35s, color .35s, border-color .35s, box-shadow .35s; will-change: transform; }
.nav-links a { display: inline-block; }

/* —— 品种目录：编辑排版不对称（错落 + 巨型序号压图） —— */
.herb-card { flex: 0 0 clamp(250px, 23vw, 320px); }
.herb-card:nth-child(odd) { margin-top: 1.9rem; }
.herb-card:nth-child(3n) { margin-top: 3.4rem; }
.herb-card:first-child { flex-basis: clamp(280px, 26vw, 360px); }
.herb-num {
  position: absolute; z-index: 2; left: .9rem; top: .55rem;
  font-family: var(--font-display); font-weight: 900; font-size: 3.2rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(247, 246, 240, .9);
  text-shadow: 0 6px 30px rgba(0, 0, 0, .35);
  pointer-events: none; user-select: none;
  transition: transform .6s var(--ease-out);
}
.herb-card:hover .herb-num { transform: translateY(4px) scale(1.04); }
.herb-card .herb-lot { font-size: .58rem; }

/* —— 实拍卡：入场上斜切揭示 —— */
.footage-card { clip-path: inset(6% 4% 6% 4% round 16px); transition: clip-path .8s var(--ease-out); }
.footage-card:hover, .footage-card.playing { clip-path: inset(0 0 0 0 round 16px); }

/* —— 首屏标题：字距收紧、更利落 —— */
.hero-title { letter-spacing: .01em; }

/* —— 大水印更贴边（裁切感） —— */
.sec-title[data-wm]::before { left: -0.3em; }

/* —— 品质宣言字号提级 —— */
.q-statement-text { font-size: clamp(1.8rem, 4.6vw, 3.4rem); }

/* —— 导航：字距与悬停下划线 —— */
.nav-links a { position: relative; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -4px; height: 1px;
  background: currentColor; transition: right .4s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }

@media (max-width: 760px) {
  .herb-card:nth-child(odd), .herb-card:nth-child(3n) { margin-top: 0; }
  .herb-num { font-size: 2.4rem; }
}

* ============================================================
   山西新谦益农业有限公司 · 本草山河，循时而生
   Design system: mineral green · cinnabar · bronze · rice paper
   ============================================================ */

:root {
  --ink: #1d2620;
  --ink-2: #232f27;
  --ink-3: #2c3b31;
  --pine: #2f5d50;
  --pine-bright: #4a7a64;
  --sage: #8fae98;
  --mist: #e9efe6;
  --paper: #f7f3e8;
  --paper-warm: #f1ebdb;
  --paper-deep: #e8e0cc;
  --cinnabar: #b8452a;
  --cinnabar-deep: #97351f;
  --bronze: #b08d57;
  --bronze-light: #cba96b;
  --text-dark: #2b332c;
  --text-soft: #5c675f;

  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-hand: "Ma Shan Zheng", "Noto Serif SC", cursive;
  --font-en: "Cormorant Garamond", "Noto Serif SC", serif;

  --ease-out: cubic-bezier(.22, .8, .32, 1);
  --shadow-card: 0 18px 50px -18px rgba(29, 38, 32, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body { width: 100%; }

/* 键盘可达性：跳转链接与焦点样式 */
.skip-link {
  position: fixed; top: -60px; left: 1rem; z-index: 300;
  padding: .6rem 1.1rem; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-size: .85rem; letter-spacing: .12em;
  transition: top .25s var(--ease-out);
}
.skip-link:focus { top: .8rem; }
:focus-visible { outline: 2px solid var(--bronze-light); outline-offset: 3px; border-radius: 4px; }

body {
  font-family: var(--font-sans);
  color: var(--text-dark);
  background: var(--paper);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--cinnabar); color: var(--paper); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: var(--pine); border-radius: 6px; border: 2px solid var(--paper-deep); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container { width: min(1180px, 90vw); margin: 0 auto; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .95s var(--ease-out), transform .95s var(--ease-out); will-change: opacity, transform; }
.reveal.on { opacity: 1; transform: none; }

/* ---------- typography shared ---------- */
.sec-label {
  font-family: var(--font-sans);
  font-size: .8rem; letter-spacing: .42em; font-weight: 500;
  color: var(--cinnabar); margin-bottom: 1.2rem;
}
.sec-label.light { color: var(--bronze-light); }
.sec-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.25;
  color: var(--ink); margin-bottom: 1.4rem; letter-spacing: .04em;
}
.sec-title.light { color: var(--paper); }
.sec-lead { max-width: 56em; color: var(--text-soft); font-size: 1.02rem; margin-bottom: 2.6rem; }
.sec-lead.light { color: rgba(233, 239, 230, .78); }

.seal-font { font-family: var(--font-serif); font-weight: 900; }
.hand-font { font-family: var(--font-hand); }

body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .01em; }
body.lang-en .hero-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .02em; }
body.lang-en .biz-card h3, body.lang-en .q-item h3, body.lang-en .value h3 { font-family: var(--font-en); letter-spacing: .02em; }

/* ============================================================
   Preloader
   ============================================================ */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.4rem;
  transition: opacity .8s ease .1s, visibility .8s ease .1s;
}
.preloader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-seal { color: var(--cinnabar); animation: sealIn 1s var(--ease-out) both; }
.preloader-text { font-family: var(--font-serif); color: var(--paper); letter-spacing: .5em; font-size: .95rem; opacity: 0; animation: fadeUp .9s ease .45s both; }
@keyframes sealIn { from { opacity: 0; transform: scale(1.5); } 60% { opacity: 1; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1.2rem, 4vw, 3rem);
  transition: background .45s ease, box-shadow .45s ease, padding .45s ease;
}
.nav.scrolled {
  background: rgba(244, 243, 236, .96);
  box-shadow: 0 1px 0 rgba(29, 38, 32, .08), 0 10px 40px -20px rgba(29, 38, 32, .3);
  padding-top: .6rem; padding-bottom: .6rem;
}
.nav.on-dark:not(.scrolled) { color: var(--paper); }
.nav-brand { display: flex; align-items: center; gap: .7rem; }
.nav-seal {
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.2rem;
  display: grid; place-items: center;
  box-shadow: 0 6px 18px -6px rgba(184, 69, 42, .55);
}
.nav-name { display: flex; flex-direction: column; line-height: 1.2; }
.nav-name-zh { font-family: var(--font-serif); font-weight: 700; font-size: 1.02rem; letter-spacing: .12em; }
.nav-name-en { font-size: .58rem; letter-spacing: .3em; opacity: .7; font-weight: 500; }
.nav-links { display: flex; gap: clamp(1rem, 2.4vw, 2.2rem); }
.nav-links a {
  font-size: .88rem; letter-spacing: .12em; font-weight: 500; position: relative; padding: .3rem 0;
  opacity: .85; transition: opacity .3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--cinnabar); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out);
}
.nav-links a:hover, .nav-links a.active { opacity: 1; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: .8rem; }
.lang-toggle {
  border: 1px solid currentColor; background: transparent; color: inherit;
  font-size: .72rem; letter-spacing: .12em; font-weight: 500;
  padding: .32rem .8rem; border-radius: 999px; opacity: .85;
  transition: background .3s, color .3s, opacity .3s;
}
.lang-toggle:hover { background: var(--cinnabar); border-color: var(--cinnabar); color: var(--paper); opacity: 1; }
.nav-burger { display: block; background: none; border: none; width: 34px; height: 26px; position: relative; color: inherit; }


/* ============================================================
   Screen 1 · Hero 山野初见
   ============================================================ */
.hero {
  position: relative; height: 100vh; height: 100svh; min-height: 620px; overflow: hidden;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .45), rgba(20, 28, 23, .7));
}
/* 视频背景层（调色已烧进 mp4，勿再加 CSS 滤镜） */
.hero-video {
  position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%;
  object-fit: cover;
}
/* 云雾带（screen 混合，缓慢横流） */
.hero-mistband {
  position: absolute; left: 0; width: 100%; z-index: 1;
  pointer-events: none; mix-blend-mode: screen;
  background: url('../assets/mist-band.webp') 50% 50% / 100% 100% no-repeat;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  mask-composite: intersect;
}
.hero-mistband-a { top: 36%; height: 24%; opacity: .25; animation: mistBreathe 22s ease-in-out infinite alternate; }
.hero-mistband-b { bottom: 4%; height: 30%; opacity: .18; z-index: 3; animation: mistBreathe 30s ease-in-out infinite alternate-reverse; }
@keyframes mistBreathe { from { opacity: .15; } to { opacity: .25; } }
#hero-canvas { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; display: block; }
.hero-vignette { z-index: 4; }
.hero-inner { z-index: 5; }
.hero-seal { z-index: 6; }
.scroll-hint { z-index: 6; }
.hero-vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .2), transparent 30%, transparent 70%, rgba(20, 28, 23, .55));
}
.hero-inner {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: var(--paper); padding: 0 6vw;
}
.hero-eyebrow { font-size: .78rem; letter-spacing: .55em; color: var(--bronze-light); margin-bottom: 2rem; font-weight: 500; text-shadow: 0 2px 18px rgba(20, 28, 23, .8); }
.hero-title {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.1rem, 6.2vw, 4.6rem); letter-spacing: .1em;
  text-shadow: 0 4px 40px rgba(0, 0, 0, .4);
}
.hero-divider { display: flex; align-items: center; gap: 1rem; margin: 1.6rem 0 1.3rem; color: var(--bronze-light); }
.hero-divider span { display: block; width: clamp(60px, 10vw, 130px); height: 1px; background: linear-gradient(to right, transparent, var(--bronze-light)); }
.hero-divider span:last-child { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-divider i { font-style: normal; font-size: .8rem; opacity: .9; }
.hero-tagline { font-family: var(--font-serif); font-size: clamp(1.2rem, 2.6vw, 1.9rem); letter-spacing: .34em; color: var(--paper); margin-bottom: 1rem; text-shadow: 0 2px 22px rgba(20, 28, 23, .75); }
.hero-sub { font-size: clamp(.85rem, 1.4vw, 1rem); letter-spacing: .22em; color: rgba(233, 239, 230, .82); font-weight: 300; text-shadow: 0 2px 16px rgba(20, 28, 23, .7); }
body.lang-en .hero-tagline { letter-spacing: .12em; font-size: clamp(1.1rem, 2.2vw, 1.6rem); }
body.lang-en .hero-sub { letter-spacing: .1em; }

.hero-seal {
  position: absolute; z-index: 3; right: clamp(1.2rem, 5vw, 4.5rem); bottom: clamp(5.5rem, 14vh, 9rem);
  display: flex; flex-direction: column;
  border: 2px solid rgba(184, 69, 42, .9); border-radius: 10px; overflow: hidden;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .5);
  background: rgba(184, 69, 42, .9);
}
.hero-seal span {
  width: 46px; height: 46px; display: grid; place-items: center;
  color: var(--paper); font-family: var(--font-serif); font-weight: 900; font-size: 1.35rem;
}
.scroll-hint {
  position: absolute; z-index: 3; left: 50%; bottom: 2.2rem; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .7rem; color: rgba(233, 239, 230, .75);
}
.scroll-hint-text { font-size: .68rem; letter-spacing: .34em; }
.scroll-hint-line { width: 1px; height: 52px; background: rgba(233, 239, 230, .35); position: relative; overflow: hidden; }
.scroll-hint-line::after {
  content: ""; position: absolute; left: 0; top: -50%; width: 100%; height: 50%;
  background: var(--bronze-light); animation: scrollDrop 2.2s ease-in-out infinite;
}
@keyframes scrollDrop { 0% { top: -50%; } 60%, 100% { top: 110%; } }

/* ============================================================
   Screen 2 · About 关于我们
   ============================================================ */
.about { position: relative; padding: clamp(6rem, 12vh, 9rem) 0 clamp(5rem, 10vh, 8rem); background: var(--paper); overflow: hidden; }
.about-bg { position: absolute; inset: 0; pointer-events: none; }
.about-bg-img {
  position: absolute; inset: -8% -6% auto -6%; height: 118%;
  background: url('../assets/about-terraces.webp') center 30% / cover no-repeat;
  opacity: .34;
  -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
  mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
}
.about-mist {
  position: absolute; left: -20%; width: 140%; height: 40%;
  background: radial-gradient(50% 60% at 50% 50%, rgba(247, 243, 232, .95), rgba(247, 243, 232, 0) 70%);
  filter: blur(10px);
}
.about-mist-a { top: -4%; }
.about-mist-b { top: 26%; opacity: .8; }
.about .container { position: relative; z-index: 2; }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin: 3rem 0 3.4rem; }
.value {
  background: rgba(255, 255, 255, .55);
  border: 1px solid rgba(47, 93, 80, .16);
  border-radius: 14px; padding: 1.8rem 1.6rem 1.6rem;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.value:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); }
.value-mark {
  display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1rem;
  border-radius: 10px; background: var(--pine); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.3rem;
}
.value h3 { font-family: var(--font-serif); font-size: 1.15rem; color: var(--ink); margin-bottom: .5rem; letter-spacing: .1em; }
.value p { font-size: .88rem; color: var(--text-soft); }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  border-top: 1px solid rgba(47, 93, 80, .2); border-bottom: 1px solid rgba(47, 93, 80, .2);
  padding: 2.2rem 0; margin-bottom: 3rem;
}
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-serif); font-weight: 900; font-size: clamp(1.9rem, 3.4vw, 2.8rem); color: var(--pine); line-height: 1.1; }
.stat-num i { font-style: normal; }
.stat-num em { font-style: normal; font-size: .55em; color: var(--cinnabar); margin-left: .1em; }
.stat-label { font-size: .8rem; letter-spacing: .1em; color: var(--text-soft); }

.about-loc {
  display: flex; align-items: center; justify-content: center; gap: .7rem;
  color: var(--pine); font-size: .92rem; letter-spacing: .06em;
}
.about-loc-pin { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: rgba(47, 93, 80, .1); }

/* ============================================================
   Screen 3 · History 发展历程（长卷）
   ============================================================ */
.history { position: relative; background: var(--ink-2); color: var(--paper); }
.history-pin { padding: clamp(5rem, 10vh, 7rem) 0 4.5rem; min-height: 100vh; display: flex; flex-direction: column; background: var(--ink-2); position: relative; z-index: 3; }
html.gsap-on .history-pin { overflow: hidden; }
.history-head { margin-bottom: 1rem; }

.scroll-viewport { position: relative; flex: 1; display: flex; align-items: center; }
.scroll-track {
  display: flex; align-items: stretch; gap: clamp(1.6rem, 3vw, 3rem);
  padding: 3.2rem clamp(1.2rem, 6vw, 6rem) 3.6rem;
  width: max-content;
  background:
    radial-gradient(140% 100% at 0% 0%, rgba(183, 196, 186, .06), transparent 50%),
    linear-gradient(to bottom, #efe9d8, #e9e1cd);
  color: var(--text-dark);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
  border-top: 6px solid #d8cfb6; border-bottom: 6px solid #d8cfb6;
  position: relative;
}
.scroll-track::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");
}
html:not(.gsap-on) .scroll-track { flex-direction: column; width: auto; margin: 0 5vw; }

.hs-node {
  position: relative; flex: 0 0 auto; width: min(480px, 82vw);
  padding: 2rem 2rem 1.6rem; display: flex; flex-direction: column; gap: .7rem;
  border-left: 1px solid rgba(47, 93, 80, .25);
}
.hs-node:first-child { border-left: none; }
.hs-year {
  font-family: var(--font-serif); font-weight: 900; font-size: clamp(2.6rem, 5vw, 4rem);
  color: var(--pine); line-height: 1; letter-spacing: .02em;
}
.hs-key .hs-year { color: var(--cinnabar); }
.hs-node h3 { font-family: var(--font-serif); font-size: 1.25rem; color: var(--ink); letter-spacing: .04em; }
.hs-node p { font-size: .92rem; color: var(--text-soft); }
.hs-era { font-size: .8rem; letter-spacing: .3em; color: var(--bronze); font-weight: 500; }
.hs-note { font-size: 1.35rem; color: var(--cinnabar); transform: rotate(-2deg); margin-top: .4rem; }
.hs-year-seal {
  width: 64px; height: 64px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 10px;
  font-size: 1.05rem; letter-spacing: .05em; text-align: center; line-height: 1.25;
  transform: rotate(-4deg); box-shadow: 0 10px 24px -10px rgba(184, 69, 42, .6);
  padding: 6px;
}
.hs-year-seal.cinnabar { background: var(--cinnabar-deep); }
.hs-photo { margin-top: .8rem; border: 6px solid #fbf8ef; box-shadow: 0 14px 34px -14px rgba(29, 38, 32, .4); transform: rotate(-1.2deg); }
.hs-photo img { width: 100%; height: 210px; object-fit: cover; }
.hs-today { background: rgba(47, 93, 80, .06); border-radius: 0 16px 16px 0; }

.scroll-progress { margin: 2.4rem auto 0; width: min(420px, 70vw); height: 2px; background: rgba(233, 239, 230, .18); border-radius: 2px; overflow: hidden; }
.scroll-progress span { display: block; height: 100%; width: 0; background: var(--bronze-light); }

/* ============================================================
   Screen 4 · Business 主营产业
   ============================================================ */
.business { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper-warm); }
.biz-grid { display: flex; gap: 10px; height: min(76vh, 640px); min-height: 480px; padding: 0 clamp(1rem, 4vw, 3rem); }
.biz-card {
  position: relative; flex: 1; border-radius: 18px; overflow: hidden;
  cursor: pointer; isolation: isolate;
  transition: flex .8s var(--ease-out);
  box-shadow: 0 20px 50px -25px rgba(29, 38, 32, .5);
}
.biz-card:hover, .biz-card:focus-within { flex: 2.7; }
.biz-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.06); filter: saturate(.82) brightness(.86);
  transition: transform 1.1s var(--ease-out), filter .8s ease;
}
.biz-card:hover .biz-bg { transform: scale(1); filter: saturate(1) brightness(.96); }
.biz-card::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(20, 28, 23, .88) 0%, rgba(20, 28, 23, .35) 46%, rgba(20, 28, 23, .12) 100%);
  transition: background .6s ease;
}
.biz-sprout {
  position: absolute; z-index: 2; right: 8%; bottom: 34%; width: 60px; color: rgba(233, 239, 230, 0);
  transition: color .8s ease .1s;
}
.biz-card:hover .biz-sprout { color: rgba(233, 239, 230, .85); }
.biz-sprout svg { width: 100%; }
.sprout-stem, .sprout-leaf, .sprout-top { stroke-dasharray: 220; stroke-dashoffset: 220; transition: stroke-dashoffset 1.6s var(--ease-out) .15s; }
.biz-card:hover .sprout-stem, .biz-card:hover .sprout-leaf, .biz-card:hover .sprout-top { stroke-dashoffset: 0; }
.biz-content {
  position: absolute; z-index: 2; left: 0; right: 0; bottom: 0;
  padding: 1.8rem 1.7rem 1.6rem; color: var(--paper);
}
.biz-index {
  font-family: var(--font-en); font-size: .85rem; letter-spacing: .3em;
  color: var(--bronze-light); display: block; margin-bottom: .5rem;
}
.biz-card h3 { font-family: var(--font-serif); font-weight: 700; font-size: clamp(1.25rem, 2vw, 1.7rem); letter-spacing: .14em; margin-bottom: .3rem; white-space: nowrap; }
.biz-tag { font-size: .76rem; letter-spacing: .18em; color: rgba(233, 239, 230, .75); margin-bottom: .8rem; white-space: nowrap; }
.biz-desc {
  font-size: .88rem; color: rgba(233, 239, 230, .92); max-width: 34em;
  opacity: 0; transform: translateY(14px); transition: opacity .6s ease .18s, transform .6s var(--ease-out) .18s;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.biz-card:hover .biz-desc, .biz-card:focus-within .biz-desc { opacity: 1; transform: none; }

/* ============================================================
   Screen 5 · Network 产地与供应网络
   ============================================================ */
.network { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--ink); color: var(--paper); position: relative; overflow: hidden; }
.network::before {
  content: ""; position: absolute; inset: 0; opacity: .05; pointer-events: none;
  background-image:
    linear-gradient(to bottom, rgba(241,235,219,.45) 0%, rgba(241,235,219,0) 8%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}
.map-wrap { position: relative; width: min(1060px, 94vw); margin: 1rem auto 0; }
#china-map { width: 100%; height: auto; display: block; }
#china-outline {
  fill: rgba(143, 174, 152, .09); stroke: rgba(233, 239, 230, .55); stroke-width: 1.5;
  stroke-linejoin: round; stroke-linecap: round;
}
.inset-box { fill: rgba(29, 38, 32, .35); stroke: rgba(233, 239, 230, .4); stroke-width: 1.1; }
.dash-line { fill: none; stroke: rgba(233, 239, 230, .7); stroke-width: 2; stroke-linecap: round; }
.inset-label { fill: rgba(233, 239, 230, .65); font-size: 12px; font-family: var(--font-sans); letter-spacing: .15em; }
.map-route { fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-dasharray: 6 7; opacity: .75; }
.map-route.r1 { stroke: var(--cinnabar); }
.map-route.r2 { stroke: var(--bronze-light); }
.map-route.r3 { stroke: var(--sage); }
.marker { cursor: pointer; }
.marker-dot { transition: r .3s ease; }
.marker:hover .marker-dot, .marker.active .marker-dot { r: 9; }
.marker-ring { transform-box: fill-box; transform-origin: center; animation: ringPulse 2.6s ease-out infinite; }
@keyframes ringPulse { 0% { transform: scale(.4); opacity: .9; } 80%, 100% { transform: scale(2.1); opacity: 0; } }
.marker-label { fill: rgba(233, 239, 230, .85); font-size: 13px; font-family: var(--font-sans); letter-spacing: .08em; pointer-events: none; }
.map-tip {
  position: absolute; z-index: 5; min-width: 240px; max-width: 320px;
  background: rgba(247, 243, 232, .97); color: var(--text-dark);
  border-radius: 12px; padding: 1.1rem 1.25rem; box-shadow: 0 24px 60px -20px rgba(0, 0, 0, .6);
  border-top: 4px solid var(--cinnabar);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity .35s ease, transform .35s var(--ease-out);
}
.map-tip.show { opacity: 1; transform: none; pointer-events: auto; }
.map-tip h4 { font-family: var(--font-serif); font-size: 1.1rem; color: var(--ink); margin-bottom: .15rem; }
.map-tip .tip-role { font-size: .72rem; letter-spacing: .2em; color: var(--cinnabar); margin-bottom: .55rem; }
.map-tip p { font-size: .84rem; color: var(--text-soft); }
.map-tip p b { color: var(--pine); font-weight: 500; }
.map-legend {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.6rem; margin-top: 2.2rem;
  font-size: .82rem; color: rgba(233, 239, 230, .8);
}
.legend-item { display: flex; align-items: center; gap: .5rem; }
.legend-item b { font-weight: 500; letter-spacing: .08em; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-hq { background: var(--cinnabar); }
.dot-hub { background: var(--bronze-light); }
.dot-partner { background: var(--sage); }
.map-note { margin-left: auto; font-size: .74rem; opacity: .55; }

/* ============================================================
   Screen 6 · Quality 品质与加工
   ============================================================ */
.quality { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper); }
.q-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-bottom: 4rem; }
.q-item {
  background: #fff; border: 1px solid rgba(47, 93, 80, .12); border-radius: 14px;
  padding: 1.7rem 1.6rem 1.5rem; transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.q-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.q-item svg { width: 40px; height: 40px; color: var(--pine); margin-bottom: .9rem; }
.q-item h3 { font-family: var(--font-serif); font-size: 1.08rem; letter-spacing: .1em; color: var(--ink); margin-bottom: .4rem; }
.q-item p { font-size: .86rem; color: var(--text-soft); }

.q-feature {
  display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(1.6rem, 4vw, 3.5rem);
  align-items: center;
  background: var(--pine); border-radius: 22px; padding: clamp(1.8rem, 4vw, 3.2rem);
  color: var(--paper); margin-bottom: 4rem;
  box-shadow: 0 30px 70px -30px rgba(47, 93, 80, .55);
}
.q-feature-kicker { font-size: .74rem; letter-spacing: .34em; color: var(--bronze-light); margin-bottom: .8rem; }
.q-feature h3 { font-family: var(--font-serif); font-size: clamp(1.4rem, 2.6vw, 2rem); letter-spacing: .06em; margin-bottom: 1rem; }
.q-feature-text > p { font-size: .94rem; color: rgba(233, 239, 230, .85); margin-bottom: 1.4rem; }
.q-feature-list { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.q-feature-list li { font-size: .88rem; padding-left: 1.3rem; position: relative; }
.q-feature-list li::before { content: ""; position: absolute; left: 0; top: .58em; width: 7px; height: 7px; border-radius: 50%; background: var(--bronze-light); }
.q-feature-media video {
  width: 100%; border-radius: 14px; display: block; background: #101815;
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, .6);
}
.q-video-cap { text-align: center; font-size: .78rem; letter-spacing: .2em; color: rgba(233, 239, 230, .65); margin-top: .8rem; }

.q-macros { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }

/* Quality statement banner with video bg */
.q-statement {
  position: relative; height: 340px; border-radius: 20px; overflow: hidden;
  margin-bottom: 4rem; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
}
.q-statement-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
}
.q-statement-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(20, 28, 23, .65), rgba(20, 28, 23, .35));
}
.q-statement-text {
  position: relative; z-index: 2; color: var(--paper);
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem); letter-spacing: .14em;
  text-align: center; text-shadow: 0 2px 30px rgba(0, 0, 0, .5);
}
.q-macros figure { position: relative; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-card); }
.q-macros img { width: 100%; height: 300px; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.q-macros figure:hover img { transform: scale(1.05); }
.q-macros figcaption {
  position: absolute; left: 1.2rem; bottom: 1rem; color: var(--paper);
  font-family: var(--font-serif); letter-spacing: .2em; font-size: .95rem;
  text-shadow: 0 2px 14px rgba(0, 0, 0, .6);
}

/* ============================================================
   Screen 7 · Contact 归于庭院
   ============================================================ */
.contact { position: relative; padding: clamp(7rem, 14vh, 10rem) 0 0; background: var(--ink-2); color: var(--paper); overflow: hidden; }
.contact-bg {
  position: absolute; inset: 0;
  background: url('../assets/contact-courtyard.webp') center 60% / cover no-repeat;
  opacity: .5;
}
.contact::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(241,235,219,.3) 0%, rgba(241,235,219,0) 9%),
    linear-gradient(to bottom, rgba(29, 38, 32, .88), rgba(29, 38, 32, .55) 45%, rgba(29, 38, 32, .9));
}
.bamboo-shadow {
  position: absolute; right: -40px; top: -30px; width: clamp(260px, 34vw, 480px);
  color: rgba(10, 16, 12, .55); filter: blur(7px); pointer-events: none;
  transform-origin: top right;
  animation: sway 9s ease-in-out infinite alternate;
}
@keyframes sway { from { transform: rotate(-1.6deg) translateX(-6px); } to { transform: rotate(1.8deg) translateX(8px); } }
.contact-inner { position: relative; z-index: 2; }
.contact-card {
  margin-top: 1rem; max-width: 640px;
  background: rgba(16, 22, 19, .58);
  border: 1px solid rgba(233, 239, 230, .18);
  border-radius: 18px; padding: 2.2rem 2.4rem;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
}
.contact-row {
  display: grid; grid-template-columns: 110px 1fr; gap: 1rem; align-items: baseline;
  padding: .9rem 0; border-bottom: 1px solid rgba(233, 239, 230, .12);
}
.contact-row:last-of-type { border-bottom: none; }
.contact-key { font-size: .76rem; letter-spacing: .26em; color: var(--bronze-light); }
.contact-val { font-family: var(--font-serif); font-size: 1.12rem; letter-spacing: .05em; }
.contact-phone { font-size: 1.5rem; letter-spacing: .1em; color: var(--bronze-light); }
.contact-actions { display: flex; gap: 1rem; margin-top: 1.8rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .85rem 2.1rem; border-radius: 999px; font-size: .92rem; letter-spacing: .16em;
  transition: transform .35s var(--ease-out), box-shadow .35s ease, background .35s ease, color .35s ease;
  border: 1px solid transparent;
}
.btn-solid { background: var(--cinnabar); color: var(--paper); box-shadow: 0 14px 34px -12px rgba(184, 69, 42, .6); }
.btn-solid:hover { transform: translateY(-3px); background: var(--cinnabar-deep); }
.btn-line { background: transparent; color: var(--paper); border-color: rgba(233, 239, 230, .5); }
.btn-line:hover { transform: translateY(-3px); border-color: var(--bronze-light); color: var(--bronze-light); }
.footer {
  position: relative; z-index: 2; margin-top: clamp(4rem, 9vh, 6rem);
  border-top: 1px solid rgba(233, 239, 230, .14);
  padding: 2rem clamp(1.2rem, 4vw, 3rem) 2.4rem;
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  font-size: .8rem; color: rgba(233, 239, 230, .6); text-align: center; flex-wrap: wrap;
}
.footer-seal {
  width: 30px; height: 30px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 6px; font-size: .95rem;
}

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 2.4rem; z-index: 150;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--ink); color: var(--paper); border: 1px solid rgba(183, 196, 186, .5);
  padding: .7rem 1.5rem; border-radius: 999px; font-size: .85rem; letter-spacing: .1em;
  transition: opacity .4s ease, transform .4s var(--ease-out);
  box-shadow: 0 20px 50px -16px rgba(0, 0, 0, .5);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   Section Background Videos (Agnes AI generated)
   ============================================================ */
.section-bg-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0; pointer-events: none;
}
/* About section video: subtle, behind the existing bg layers */
.about .section-bg-video {
  opacity: .22;
}
.about .about-bg, .about .container { position: relative; z-index: 2; }

/* Network section video */
.network .section-bg-video {
  opacity: .18;
}
.network .container, .network .map-wrap, .network .map-legend { position: relative; z-index: 2; }

/* Quality section video */
.quality .section-bg-video {
  opacity: .12;
}
.quality .container { position: relative; z-index: 2; }

/* Contact section video */
.contact .section-bg-video {
  opacity: .35;
}
.contact .contact-bg, .contact .bamboo-shadow, .contact .container, .contact .footer { position: relative; z-index: 2; }

/* ============================================================
   Screen 7 · 实地影像 Field Films
   ============================================================ */
.media {
  padding: clamp(6rem, 12vh, 9rem) 0;
  background: var(--paper-warm);
  position: relative; overflow: hidden;
}
.media-feature {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 2rem;
  margin-top: 2rem; align-items: center;
}
.doc-video {
  width: 100%; aspect-ratio: 854 / 480; border-radius: 18px;
  background: #101613; box-shadow: var(--shadow-card); display: block;
}
.doc-copy { color: var(--ink); }
.doc-copy span { font-size: .72rem; letter-spacing: .14em; color: var(--cinnabar); font-weight: 600; }
.doc-copy h3 { font-family: var(--font-serif); font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 600; margin: .4rem 0 .6rem; letter-spacing: .04em; }
.doc-copy p { font-size: .92rem; color: var(--text-soft); line-height: 1.9; }
.doc-note { font-size: .74rem !important; color: var(--text-soft) !important; letter-spacing: .08em; margin-top: .9rem; padding-top: .9rem; border-top: 1px solid rgba(29, 38, 32, .14); }
.footage-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 2.2rem;
}
.footage-card {
  position: relative; border-radius: 16px; overflow: hidden;
  aspect-ratio: 427 / 320; cursor: pointer; isolation: isolate;
  box-shadow: var(--shadow-card);
}
.footage-card video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
  filter: saturate(.82) contrast(.98);
  transition: transform 1.2s var(--ease-out), filter .6s ease;
}
.footage-card:hover video { transform: scale(1.05); filter: saturate(1); }
.footage-card figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  display: flex; flex-direction: column; gap: .15rem;
  padding: 1.9rem .95rem .8rem;
  background: linear-gradient(to top, rgba(16, 22, 19, .82), transparent);
  color: var(--paper);
}
.footage-card figcaption b { font-family: var(--font-serif); font-size: .92rem; font-weight: 600; letter-spacing: .06em; }
.footage-card figcaption span { font-size: .64rem; letter-spacing: .12em; color: rgba(233, 239, 230, .66); }
.footage-play {
  position: absolute; right: .85rem; top: .85rem; z-index: 2;
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(16, 22, 19, .62); border: 1px solid rgba(233, 239, 230, .4);
  cursor: pointer;
  display: grid; place-items: center; transition: background .3s, transform .3s;
}
.footage-play i {
  width: 0; height: 0; margin-left: 2px;
  border-left: 10px solid var(--paper); border-top: 6.5px solid transparent; border-bottom: 6.5px solid transparent;
}
.footage-card:hover .footage-play { background: var(--cinnabar); transform: scale(1.08); }
.footage-card.playing .footage-play i {
  margin-left: 0; border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 9px solid var(--paper); border-bottom: none;
}
.media-note { margin-top: 1.6rem; font-size: .76rem; color: var(--text-soft); letter-spacing: .08em; }

/* ============================================================
   Section Transition Feather Zones
   Apple-keynote-style gradient blends between adjacent sections.
   ::after = top feather (blend into THIS section's bg from above)
   ::before = bottom feather (blend THIS section into the next)
   Dark→Light and Light→Dark transitions get a 120px soft gradient.
   ============================================================ */
section { position: relative; }

/* --- Top feathers: blend the PREVIOUS section's tone into this one --- */

/* About (light) receives dark hero from above */
.about::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.4) 50%, transparent 100%);
  opacity: .85;
}

/* History (dark) receives light about from above — feather the paper into ink */
.history::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper-warm) 0%, rgba(241,235,219,.3) 50%, transparent 100%);
}

/* Business (light) receives dark history from above */
.business::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink-2) 0%, rgba(35,47,39,.3) 50%, transparent 100%);
  opacity: .7;
}

/* Network (dark) receives light business from above - merged with noise texture */
/* The top feather is added to the existing .network::before below */

/* Quality (light) receives dark network from above */
.quality::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.3) 50%, transparent 100%);
  opacity: .6;
}

/* Media (light) receives light quality — subtle paper-tone blend */
.media::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper) 0%, rgba(247,243,232,.3) 50%, transparent 100%);
}

/* Contact (dark) receives light media from above - merged with existing dark overlay below */
/* The top feather is added to the existing .contact::before below */

/* --- Bottom feathers: blend this section into the NEXT one --- */

/* Hero (dark) blends into light About below */
.hero::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 4; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(247,243,232,.3) 50%, var(--paper) 100%);
}

/* About (light) blends into dark History below */
.about::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(35,47,39,.3) 50%, var(--ink-2) 100%);
  opacity: .8;
}

/* Business (light) blends into dark Network below */
.business::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink) 100%);
  opacity: .7;
}

/* Quality (light) blends into light Media below — subtle */
.quality::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.2) 50%, var(--paper-warm) 100%);
}

/* Media (light) blends into dark Contact below */
.media::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink-2) 100%);
  opacity: .7;
}

/* History bottom blends into Business (light) below — handled by scroll-track edge */
.history::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 3; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.25) 50%, var(--paper-warm) 100%);
}

/* --- Section entrance: fade/slide up on scroll (GSAP ScrollTrigger driven) --- */
.section-enter {
  opacity: 0; transform: translateY(40px);
  will-change: opacity, transform;
}
html.gsap-on .section-enter.gsap-revealed {
  opacity: 1; transform: none;
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .q-grid { grid-template-columns: repeat(2, 1fr); }
  .q-feature { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr 1fr; }
  .media-feature { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed; top: 0; right: 0; z-index: 99;
    flex-direction: column; gap: 1.6rem;
    background: rgba(29, 38, 32, .97); color: var(--paper);
    width: min(320px, 78vw); height: 100vh; padding: 6.5rem 2.4rem;
    transform: translateX(100%); transition: transform .5s var(--ease-out);
  }
  .nav-links.open { transform: none; }
  .nav-links a { font-size: 1.05rem; }
  .nav-burger { display: block; }
}

@media (max-width: 768px) {
  .values { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 1.8rem; }
  .biz-grid { flex-direction: column; height: auto; min-height: 0; }
  .biz-card { min-height: 300px; }
  .biz-card:hover { flex: 1; }
  .biz-desc { opacity: 1; transform: none; -webkit-line-clamp: unset; }
  .q-grid { grid-template-columns: 1fr; }
  .q-macros { grid-template-columns: 1fr; }
  .contact-row { grid-template-columns: 1fr; gap: .2rem; }
  .hero-seal { display: none; }
  .hs-photo img { height: 170px; }
  .map-note { margin-left: 0; }
  .media-grid { grid-template-columns: 1fr; }
  .press-card { min-height: 200px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-hint-line::after, .marker-ring, .bamboo-shadow { animation: none; }
  .biz-card, .biz-bg, .value, .q-item { transition: none; }
}

/* ============================================================
   Hero CTAs · 首屏行动按钮
   ============================================================ */
.hero-cta { display: flex; gap: .9rem; margin-top: 2.4rem; justify-content: center; flex-wrap: wrap; }
.hero-cta .btn { padding: .8rem 2rem; font-size: .82rem; letter-spacing: .18em; }

/* ============================================================
   Screen 4 · 主营品种 Herb Catalog
   ============================================================ */
.catalog { padding: clamp(6rem, 12vh, 9rem) 0 clamp(4rem, 8vh, 6rem); background: var(--paper); position: relative; overflow: hidden; }
.catalog-strip-wrap { position: relative; margin-top: 2.6rem; }
.catalog-strip-wrap::before, .catalog-strip-wrap::after {
  content: ""; position: absolute; top: 0; bottom: 0; z-index: 2; width: 7vw; pointer-events: none;
}
.catalog-strip-wrap::before { left: 0; background: linear-gradient(to right, var(--paper), transparent); }
.catalog-strip-wrap::after { right: 0; background: linear-gradient(to left, var(--paper), transparent); }
.catalog-strip {
  display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: .6rem clamp(1rem, 4vw, 3rem) 1.2rem;
  scrollbar-width: none; -ms-overflow-style: none; cursor: grab;
}
.catalog-strip::-webkit-scrollbar { display: none; }
.catalog-strip.dragging { cursor: grabbing; scroll-snap-type: none; }
.herb-card {
  flex: 0 0 clamp(240px, 22vw, 300px); scroll-snap-align: start;
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(47, 93, 80, .14);
  border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.herb-card:hover { transform: translateY(-6px); box-shadow: 0 26px 60px -20px rgba(29, 38, 32, .45); }
.herb-img { position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: var(--paper-deep); }
.herb-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 1.4s var(--ease-out); }
.herb-card:hover .herb-img img { transform: scale(1.06); }
.herb-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(16, 22, 19, .32), transparent 45%);
}
.herb-body { padding: 1.15rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.herb-body h3 {
  font-family: var(--font-serif); font-size: 1.18rem; font-weight: 700;
  color: var(--ink); letter-spacing: .08em;
  display: flex; align-items: baseline; gap: .55rem; flex-wrap: wrap;
}
.herb-body h3 em {
  font-family: var(--font-en); font-style: italic; font-weight: 500;
  font-size: .68rem; letter-spacing: .04em; color: var(--text-soft);
}
.herb-note { font-size: .8rem; color: var(--text-soft); margin: .45rem 0 .8rem; line-height: 1.7; }
.herb-body ul { list-style: none; display: flex; flex-direction: column; gap: .42rem; margin-top: auto; }
.herb-body li { display: flex; align-items: baseline; gap: .55rem; font-size: .78rem; color: var(--text-soft); }
.herb-body li b {
  font-family: var(--font-serif); font-size: 1.06rem; color: var(--pine);
  min-width: 2.6em; text-align: right; letter-spacing: .02em;
}
.herb-body li span { line-height: 1.55; }
.herb-season {
  align-self: flex-start; margin-top: .95rem;
  font-size: .66rem; letter-spacing: .16em; color: var(--cinnabar);
  border: 1px solid rgba(184, 69, 42, .35); border-radius: 999px;
  padding: .28rem .8rem;
}
.herb-more {
  flex-basis: clamp(220px, 18vw, 260px);
  background: linear-gradient(160deg, var(--pine) 0%, var(--ink-3) 100%);
  border: none; justify-content: center;
}
.herb-more h3 { color: var(--paper); font-size: 1.3rem; }
.herb-more .herb-note { color: rgba(233, 239, 230, .8); font-size: .82rem; line-height: 1.9; }
.herb-more .text-link { margin-top: 1rem; align-self: flex-start; }
.text-link {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .78rem; letter-spacing: .1em; font-weight: 600;
  transition: color .3s;
}
.catalog .text-link, .light-text .text-link { color: var(--cinnabar); }
.catalog .text-link:hover { color: var(--cinnabar-deep); }
.herb-more .text-link { color: var(--bronze-light); }
.herb-more .text-link:hover { color: var(--paper); }

@media (max-width: 900px) {
  .media-feature { grid-template-columns: 1fr; }
  .footage-grid { grid-template-columns: 1fr 1fr; }
  .herb-card, .herb-more { flex-basis: 74vw; }
  .catalog-strip-wrap::before, .catalog-strip-wrap::after { width: 4vw; }
}
@media (max-width: 560px) {
  .footage-grid { grid-template-columns: 1fr; }
  .footage-card { aspect-ratio: 854 / 480; }
  .hero-cta .btn { padding: .72rem 1.4rem; }
}

/* ============================================================
   视觉升级 · 宋版书与朱印  Aesthetic Pass
   ============================================================ */

/* —— 全局：纸张颗粒 + 选区 + 滚动条 —— */
::selection { background: rgba(184, 69, 42, .85); color: var(--paper); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-warm); }
::-webkit-scrollbar-thumb { background: rgba(47, 93, 80, .35); border-radius: 5px; border: 2px solid var(--paper-warm); }
::-webkit-scrollbar-thumb:hover { background: var(--pine); }

/* —— 首屏：提亮 + 暖金晨光 + 更有层次的字 —— */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(183, 196, 186, .20), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(23, 33, 26, .30), transparent 60%);
  mix-blend-mode: screen;
}
.hero-title {
  font-size: clamp(2.3rem, 6.8vw, 5rem);
  text-shadow: 0 6px 60px rgba(10, 16, 12, .55), 0 1px 0 rgba(0, 0, 0, .25);
}
.hero-eyebrow { display: inline-flex; align-items: center; gap: 1rem; }
.hero-eyebrow::before, .hero-eyebrow::after {
  content: ""; width: clamp(28px, 6vw, 72px); height: 1px;
  background: linear-gradient(to right, transparent, var(--bronze-light));
}
.hero-eyebrow::after { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-tagline {
  background: linear-gradient(105deg, #f2ead8 15%, var(--bronze-light) 50%, #f2ead8 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-cta .btn-solid { box-shadow: 0 18px 44px -14px rgba(184, 69, 42, .75); }

/* 首屏右侧竖排诗句 */
.hero-verse {
  position: absolute; z-index: 6; right: clamp(4.6rem, 9vw, 8.2rem); top: 50%;
  transform: translateY(-54%);
  display: flex; flex-direction: column; gap: 1.3rem;
  writing-mode: vertical-rl; letter-spacing: .58em;
  font-family: var(--font-serif); font-size: 1.02rem; color: rgba(233, 239, 230, .8);
  text-shadow: 0 2px 18px rgba(10, 16, 12, .8);
  border-right: 1px solid rgba(183, 196, 186, .4); padding-right: 1.05rem;
}
.hero-verse span:last-child { color: var(--bronze-light); }
@media (max-width: 980px) { .hero-verse { display: none; } }

/* —— 章节标题：大字水印 + 标签章 —— */
.sec-title { position: relative; }
.sec-title[data-wm]::before {
  content: attr(data-wm);
  position: absolute; z-index: -1;
  top: -0.62em; left: -0.34em;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(6.5rem, 15vw, 13rem); line-height: 1;
  color: rgba(29, 38, 32, .055);
  pointer-events: none; user-select: none;
}
.sec-title.light[data-wm]::before { color: rgba(233, 239, 230, .075); }
.sec-title { z-index: 1; } /* ensure stacking above wm */
.container { position: relative; }
.sec-label { display: inline-flex; align-items: center; gap: .7rem; }
.sec-label::before {
  content: ""; width: 10px; height: 10px; border-radius: 3px;
  background: var(--cinnabar); box-shadow: 0 0 0 1px rgba(184, 69, 42, .35), inset 0 0 0 2px rgba(247, 243, 232, .35);
}
.sec-label.light::before { background: var(--bronze-light); box-shadow: 0 0 0 1px rgba(183, 196, 186, .4), inset 0 0 0 2px rgba(29, 38, 32, .3); }

/* —— 数据与卡片细节 —— */
.stat-num { background: linear-gradient(120deg, var(--pine) 30%, #3e7263 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.value-mark { box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .22), 0 10px 24px -12px rgba(47, 93, 80, .55); }
.herb-seal {
  position: absolute; z-index: 2; top: .8rem; right: .8rem;
  writing-mode: vertical-rl; letter-spacing: .3em;
  font-family: var(--font-serif); font-weight: 700; font-size: .72rem;
  color: #f7f3e8; background: rgba(184, 69, 42, .92);
  padding: .5rem .34rem .34rem; border-radius: 6px;
  box-shadow: 0 6px 18px -6px rgba(0, 0, 0, .45), inset 0 0 0 1px rgba(247, 243, 232, .3);
}
.herb-more { position: relative; overflow: hidden; }
.herb-more::before {
  content: "药"; position: absolute; right: -1.2rem; bottom: -2.4rem;
  font-family: var(--font-serif); font-weight: 900; font-size: 9rem; line-height: 1;
  color: rgba(233, 239, 230, .07); pointer-events: none;
}
.footage-card::before {
  content: attr(data-idx);
  position: absolute; z-index: 3; left: .85rem; top: .78rem;
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 6px; font-family: var(--font-serif); font-weight: 700; font-size: .82rem;
  color: var(--paper); background: rgba(16, 22, 19, .66);
  border: 1px solid rgba(183, 196, 186, .5);
  pointer-events: none;
}

/* —— 品质宣言字 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2ead8 20%, var(--bronze-light) 55%, #f2ead8 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 导航细节 —— */
.nav.on-dark.scrolled {
  background: rgba(20, 28, 23, .72);
  box-shadow: 0 1px 0 rgba(233, 239, 230, .1), 0 10px 40px -20px rgba(0, 0, 0, .5);
}
.nav-seal { transition: transform .6s var(--ease-out); }
.nav-brand:hover .nav-seal { transform: rotate(-8deg) scale(1.06); }

/* —— 按钮统一细节 —— */
.btn { position: relative; overflow: hidden; }
.btn-solid::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(247, 243, 232, .35), transparent);
  transform: skewX(-22deg); transition: left .7s var(--ease-out);
}
.btn-solid:hover::after { left: 130%; }

@media (prefers-reduced-motion: reduce) {
  .btn-solid::after { display: none; }
  .nav-seal { transition: none; }
}

/* ============================================================
   大改 2.0 · 沉浸式交互层  Immersive Layer
   ============================================================ */

/* —— 开屏：墨滴 + 印章 + 计数 —— */
.preloader { flex-direction: column; gap: 1.6rem; }
.preloader-seal { display: none; }
.pre-ink { position: relative; width: 120px; height: 120px; display: grid; place-items: center; }
.pre-blot {
  position: absolute; inset: 0; border-radius: 46% 54% 52% 48% / 55% 48% 52% 45%;
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .28), rgba(29, 38, 32, .92) 62%);
  transform: scale(0); animation: blot 1.5s var(--ease-out) .1s forwards;
  filter: blur(1px);
}
@keyframes blot {
  0% { transform: scale(0) rotate(-8deg); }
  62% { transform: scale(1.06) rotate(2deg); }
  100% { transform: scale(1) rotate(0deg); }
}
.pre-seal {
  position: relative; color: var(--paper); font-size: 3.2rem;
  opacity: 0; animation: sealIn .8s var(--ease-out) 1s forwards;
  text-shadow: 0 4px 24px rgba(0, 0, 0, .5);
}
@keyframes sealIn { from { opacity: 0; transform: scale(1.7); } to { opacity: 1; transform: scale(1); } }
.pre-count {
  position: absolute; right: clamp(1.2rem, 4vw, 3rem); bottom: clamp(1rem, 3vh, 2rem);
  font-family: var(--font-en); font-size: .95rem; letter-spacing: .3em; color: var(--bronze-light);
}

/* —— 首屏：墨池 + 描边大字 —— */
#ink-canvas { position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; display: block; pointer-events: none; }
.hero-outline {
  position: absolute; z-index: 1; left: 50%; top: 50%; transform: translate(-50%, -52%);
  display: flex; gap: 1.2em; pointer-events: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(11rem, 34vw, 30rem); line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(233, 239, 230, .13);
  user-select: none;
}
.hero-outline span { display: block; }
.hero-outline span:last-child { transform: translateY(.18em); }
@media (max-width: 980px) { .hero-outline { font-size: clamp(7rem, 30vw, 12rem); } }

/* —— 逐字动效 —— */
.hero-title .ch, .sec-title .ch { display: inline-block; }
.reveal .ch { opacity: 0; }
.reveal.on .ch {
  animation: chIn .9s var(--ease-out) var(--d, 0ms) both;
}
@keyframes chIn {
  from { opacity: 0; transform: translateY(.6em) rotate(4deg); filter: blur(10px); }
  to { opacity: 1; transform: none; filter: blur(0); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal .ch { opacity: 1; }
  .reveal.on .ch { animation: none; }
}

/* —— 动态字带 —— */
.marquee {
  position: relative; overflow: hidden; padding: 1.15rem 0;
  background: var(--ink); border-top: 1px solid rgba(183, 196, 186, .25); border-bottom: 1px solid rgba(183, 196, 186, .25);
}
.marquee-track {
  display: flex; width: max-content; gap: 3.2rem;
  animation: mq 46s linear infinite;
}
.marquee-track span {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.6rem); letter-spacing: .3em;
  color: var(--paper); white-space: nowrap;
}
.marquee-track span em { font-style: normal; font-size: .5em; color: var(--cinnabar); margin-left: 3.2rem; vertical-align: .35em; }
.marquee-track .hollow { color: transparent; -webkit-text-stroke: 1px rgba(183, 196, 186, .75); }
.marquee-track .hollow em { -webkit-text-stroke: 0; }
@keyframes mq { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }
.marquee-dark { background: var(--paper-deep); border-color: rgba(29, 38, 32, .12); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(184, 69, 42, .6); }
.marquee-dark .marquee-track span em { color: rgba(184, 69, 42, .8); }

/* —— 巨型 CTA（联系） —— */
.giant-cta {
  display: block; margin: 1.2rem 0 2.6rem; text-decoration: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.6rem, 8.5vw, 7rem); line-height: 1.15; letter-spacing: .12em;
  color: transparent; -webkit-text-stroke: 1.5px rgba(233, 239, 230, .8);
  position: relative; overflow: hidden; width: fit-content;
  transition: color .5s var(--ease-out);
}
.giant-cta::after {
  content: "WALK THE SEASONS WITH US"; position: absolute; left: .1em; bottom: -1.1em;
  font-family: var(--font-en); font-weight: 600; font-style: italic;
  font-size: .16em; letter-spacing: .6em; color: rgba(183, 196, 186, .85);
  -webkit-text-stroke: 0; white-space: nowrap;
}
.giant-cta .giant-cta-t { position: relative; z-index: 1; }
.giant-cta::before {
  content: ""; position: absolute; z-index: 0; inset: 0;
  background: linear-gradient(100deg, var(--bronze-light), #e8d5a8);
  transform: translateX(-101%); transition: transform .7s var(--ease-out);
  -webkit-background-clip: text;
}
.giant-cta:hover, .giant-cta:focus-visible { color: var(--bronze-light); -webkit-text-stroke-color: transparent; }
.giant-cta:hover::before { transform: translateX(0); }

/* —— 滚动印章 —— */
.scroll-seal {
  position: fixed; right: 1.35rem; top: 50%; transform: translateY(-50%);
  z-index: 90; display: flex; flex-direction: column; align-items: center; gap: .8rem;
  pointer-events: none;
}
.scroll-seal > span {
  width: 34px; height: 34px; display: grid; place-items: center;
  background: rgba(184, 69, 42, .92); color: var(--paper);
  font-size: 1.05rem; border-radius: 8px;
  box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .3), 0 8px 20px -8px rgba(0, 0, 0, .5);
}
.scroll-seal i {
  width: 1px; height: clamp(90px, 22vh, 190px);
  background: linear-gradient(to bottom, rgba(183, 196, 186, .8), rgba(183, 196, 186, .1));
  transform: scaleY(0); transform-origin: top;
}
@media (max-width: 980px) { .scroll-seal { display: none; } }

/* —— 墨点光标 —— */
@media (pointer: fine) {
  html.has-cursor, html.has-cursor body { cursor: none; }
  html.has-cursor a, html.has-cursor button, html.has-cursor video { cursor: none; }
}
.cursor-dot, .cursor-ring {
  position: fixed; left: 0; top: 0; z-index: 1000; pointer-events: none;
  opacity: 0; transition: opacity .3s;
}
.cursor-dot {
  width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px; border-radius: 50%;
  background: var(--cinnabar);
}
.cursor-ring {
  width: 40px; height: 40px; margin: -20px 0 0 -20px; border-radius: 50%;
  border: 1.5px solid rgba(183, 196, 186, .8);
  display: grid; place-items: center;
  transition: opacity .3s, width .35s var(--ease-out), height .35s var(--ease-out),
              margin .35s var(--ease-out), background .35s, border-color .35s;
}
.cursor-ring b {
  font-family: var(--font-serif); font-weight: 700; font-size: .82rem; color: var(--paper);
  opacity: 0; transform: scale(.5); transition: opacity .25s, transform .25s var(--ease-out);
}
.cursor-ring.on {
  width: 64px; height: 64px; margin: -32px 0 0 -32px;
  background: rgba(184, 69, 42, .92); border-color: transparent;
}
.cursor-ring.on b { opacity: 1; transform: scale(1); }
.cursor-ring.big {
  width: 76px; height: 76px; margin: -38px 0 0 -38px;
  border-color: var(--bronze-light);
}
.cursor-ring.press { transform-origin: center; }

/* —— 磁吸倾斜：高光跟随指针（biz 用 .biz-bg::after，herb 用卡片 ::after） —— */
.biz-card, .herb-card { transform-style: preserve-3d; will-change: transform; }
.biz-card.tilting, .herb-card.tilting { transition: none !important; }
.biz-bg::after, .herb-card::after {
  content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none; opacity: 0;
  border-radius: inherit;
  background: radial-gradient(340px circle at var(--gx, 50%) var(--gy, 50%), rgba(247, 243, 232, .17), transparent 65%);
  transition: opacity .4s;
}
.biz-card.tilting .biz-bg::after, .herb-card.tilting::after { opacity: 1; }

/* —— 品种条指针样式 —— */
.catalog-strip[data-cursor] { cursor: grab; }
.catalog-strip.dragging { cursor: grabbing !important; }

/* —— 交互细节补 —— */
.biz-card { transition: flex .8s var(--ease-out), transform .6s var(--ease-out); }
body.lang-en .giant-cta::after { display: none; }
body.lang-en .giant-cta { -webkit-text-stroke-color: rgba(233, 239, 230, .8); }
.cursor-ring.press { width: 30px; height: 30px; margin: -15px 0 0 -15px; }

/* ============================================================
   3.0 视觉系统重制 · 琥珀档案  Amber Archive
   诊断：旧版（米纸+衬线+赤陶）命中 AI 模板脸。重制为：
   药材琥珀/黄芩金主色 + 特粗黑体编辑排版 + 批号档案系统 + 硬对比。
   ============================================================ */

/* —— 令牌覆盖 —— */
:root {
  --paper: #faf8f2;
  --paper-warm: #f3f0e6;
  --paper-deep: #e9e4d2;
  --ink: #17150e;
  --ink-2: #221f15;
  --ink-3: #302b1d;
  --text-dark: #201d14;
  --text-soft: #55503f;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --cinnabar: #b8452a;   /* 仅保留印章语义 */
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* —— 排版：特粗黑体编辑系统 —— */
.hero-title, .sec-title {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: .015em;
}
.hero-title { font-size: clamp(2.4rem, 7.4vw, 5.6rem); }
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: var(--amber); }
body.lang-en .hero-title, body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; }
.sec-title { font-size: clamp(2rem, 4.6vw, 3.4rem); }
.sec-lead { color: var(--text-soft); font-size: 1.05rem; }

/* —— 章节标签：档案索引 —— */
.sec-label {
  color: var(--amber-deep);
  font-weight: 700; letter-spacing: .3em; font-size: .78rem;
  font-variant-numeric: tabular-nums;
}
.sec-label.light { color: var(--bronze-light); }
.sec-label::before { display: none; }
.sec-label::after {
  content: ""; width: clamp(40px, 7vw, 90px); height: 1px;
  background: currentColor; opacity: .5; margin-left: .4rem;
}

/* —— 大字水印 → 巨型轮廓数字 —— */
.sec-title[data-wm]::before {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(9rem, 22vw, 19rem);
  top: -0.5em; left: -0.18em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(23, 21, 14, .1);
}
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 226, 204, .14); color: transparent; }

/* —— 首屏重排：干净 + 大字 + 琥珀 —— */
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(183, 196, 186, .22), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(15, 13, 8, .38), transparent 60%);
}
.hero-eyebrow { color: var(--bronze-light); letter-spacing: .5em; }
.hero-tagline {
  background: linear-gradient(100deg, #f5efdd 20%, var(--bronze-light) 55%, #f5efdd 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-family: var(--font-display); font-weight: 700; letter-spacing: .3em;
}
.hero-sub { color: rgba(238, 233, 216, .92); font-weight: 400; letter-spacing: .28em; }
.hero-cta .btn-solid {
  background: var(--ink); color: #f2edda;
  box-shadow: 0 18px 44px -14px rgba(0, 0, 0, .65);
}
.hero-cta .btn-solid:hover { background: var(--amber-deep); }
.hero-cta .btn-line { border-color: rgba(233, 226, 204, .45); color: #f2edda; }
.hero-cta .btn-line:hover { border-color: var(--bronze-light); color: var(--bronze-light); }

/* —— 字带：墨底珀金 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .35); }
.marquee-track span { color: #f2edda; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .8); color: transparent; }
.marquee-track span em { color: var(--amber); }
.marquee-dark { background: var(--paper-deep); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(111, 125, 114, .7); }

/* —— 巨型 CTA —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 233, 216, .85); font-family: var(--font-display); letter-spacing: .06em; }
.giant-cta::before { background: linear-gradient(100deg, var(--amber), #e8c56a); }
.giant-cta:hover, .giant-cta:focus-visible { color: var(--amber); }

/* —— 数据与卡片 —— */
.stat-num { background: linear-gradient(120deg, var(--ink) 30%, #4a3f22 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: var(--amber-deep); }
.value-mark { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(242, 237, 218, .2); }
.value { border-color: rgba(23, 21, 14, .12); }
.value:hover { box-shadow: 0 24px 60px -24px rgba(23, 21, 14, .3); }

/* —— 品种卡：标本批号 —— */
.herb-lot {
  display: block; margin: .3rem 0 .5rem;
  font-size: .62rem; letter-spacing: .14em; color: var(--amber-deep);
  font-variant-numeric: tabular-nums; font-weight: 500;
  padding-bottom: .5rem; border-bottom: 1px dashed rgba(111, 125, 114, .3);
}
.herb-body h3 { letter-spacing: .04em; }
.herb-season { color: var(--amber-deep); border-color: rgba(111, 125, 114, .4); }
.herb-more { background: linear-gradient(165deg, #262216, #17150e); }
.herb-more::before { color: rgba(183, 196, 186, .08); }

/* —— 品质宣言 / 图表 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2edda 20%, var(--amber) 55%, #f2edda 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hs-year { color: var(--ink); }
.hs-node .hs-note { color: var(--amber-deep); }

/* —— 印章体系：朱砂仅限印 —— */
.scroll-seal > span { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0,0,0,.5); }
.scroll-seal i { background: linear-gradient(to bottom, var(--amber), rgba(183, 196, 186, .08)); }

/* —— 光标：琥珀 —— */
.cursor-dot { background: var(--amber); }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: var(--amber); }
.cursor-ring.on { background: var(--ink); }
.cursor-ring.on b { color: var(--amber); }

/* —— 导航 / 滚动条 —— */
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: var(--amber-deep); }
.nav.on-dark.scrolled { background: rgba(20, 18, 12, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .16); }
.nav-links a.active { color: var(--amber); }

/* —— 按钮扫光保留，实底换墨色 —— */
.btn-solid { background: var(--ink); }
.btn-solid:hover { background: var(--amber-deep); }

/* —— 地图图例 —— */
.dot-hub { background: var(--amber) !important; }
.dot-partner { background: #8a7b54 !important; }

/* —— 开屏：墨滴换琥珀晕 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .5), rgba(23, 21, 14, .95) 62%);
}
.pre-count { color: var(--amber); }

/* —— 3.0 补：旧松绿系令牌收敛为乌木/橄榄金 —— */
:root {
  --pine: #33401f;
  --pine-bright: #5b6c33;
  --sage: #a3945f;
}
#china-outline { fill: rgba(183, 196, 186, .07); stroke: rgba(236, 229, 206, .5); }
.inset-box { fill: rgba(23, 21, 14, .35); }

/* ============================================================
   手机端专项优化 Mobile Pass
   ============================================================ */
@media (max-width: 760px) {
  /* 首屏：更大字号、收紧留白、CTA 满宽 */
  .hero-inner { padding: 0 7vw; }
  .hero-title { font-size: clamp(1.75rem, 8.6vw, 2.6rem); letter-spacing: .02em; line-height: 1.28; }
  .hero-tagline { font-size: clamp(1.05rem, 4.6vw, 1.4rem); letter-spacing: .22em; }
  .hero-sub { font-size: .8rem; letter-spacing: .12em; line-height: 1.9; }
  .hero-eyebrow { letter-spacing: .34em; margin-bottom: 1.4rem; }
  .hero-cta { margin-top: 1.9rem; gap: .7rem; }
  .hero-cta .btn { width: min(320px, 78vw); justify-content: center; }
  .hero-seal { transform: scale(.82); transform-origin: bottom right; }
  .scroll-hint { bottom: 1.4rem; }

  /* 章节头：字号与水印收敛 */
  .sec-title { font-size: clamp(1.55rem, 6.4vw, 2.1rem); }
  .sec-title[data-wm]::before { font-size: clamp(5.6rem, 26vw, 8rem); top: -0.55em; left: -0.1em; }
  .sec-lead { font-size: .95rem; line-height: 2; }
  .sec-label { letter-spacing: .2em; font-size: .7rem; }

  /* 品种卡与标签 */
  .herb-card, .herb-more { flex-basis: 76vw; }
  .herb-lot { font-size: .58rem; letter-spacing: .1em; }
  .herb-body h3 { font-size: 1.08rem; }

  /* 数据/数值 */
  .stats { row-gap: 1.5rem; }
  .stat-num { font-size: clamp(1.6rem, 7vw, 2.2rem); }

  /* 巨型 CTA */
  .giant-cta { font-size: clamp(1.9rem, 10.5vw, 3rem); letter-spacing: .08em; }
  .giant-cta::after { font-size: .14em; letter-spacing: .4em; }

  /* 字带 */
  .marquee-track span { font-size: 1.15rem; letter-spacing: .22em; }

  /* 纪录片与实拍卡说明 */
  .doc-copy p { line-height: 2; }
  .footage-card figcaption b { font-size: .84rem; }

  /* 联系卡 */
  .contact-card { padding: 1.4rem 1.2rem; }

  /* 开屏 */
  .pre-ink { width: 96px; height: 96px; }
  .pre-seal { font-size: 2.6rem; }
}
@media (max-width: 400px) {
  .hero-title { font-size: 1.62rem; }
  .hero-cta .btn { width: 86vw; }
}

/* —— 性能：低可见度背景视频改静态图（免解码） —— */
.section-bg-img {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  pointer-events: none;
}
.network-bg-img { opacity: .18; background-image: url('../assets/clip-network-poster.jpg'); }
.quality-bg-img { opacity: .12; background-image: url('../assets/clip-quality-poster.jpg'); }

/* —— 修复：发展历程移动端白屏（轨道无裁剪溢出，v4 起遗留） —— */
@media (max-width: 768px) {
  .history-pin { min-height: 0; padding: clamp(4rem, 9vh, 6rem) 0 3rem; }
  .scroll-viewport {
    overflow-x: auto; overflow-y: hidden;
    scrollbar-width: none; -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  .scroll-viewport::-webkit-scrollbar { display: none; }
  .scroll-track { padding: 1.4rem 1.3rem 1.8rem; gap: 1.2rem; }
  .hs-node { width: 78vw; scroll-snap-align: center; padding: 1.6rem 1.4rem 1.4rem; }
  .scroll-progress { display: none; }
}

/* —— 主营产业实拍角标 —— */
.biz-real-tag {
  position: absolute; z-index: 3; top: .9rem; right: .9rem;
  writing-mode: vertical-rl; letter-spacing: .28em;
  font-family: var(--font-serif); font-weight: 700; font-size: .7rem;
  color: #f2edda; background: rgba(23, 21, 14, .68);
  border: 1px solid rgba(183, 196, 186, .55);
  padding: .5rem .32rem .34rem; border-radius: 6px;
}

/* —— 客户信任句 —— */
.clients-note {
  margin-top: 2.2rem; font-size: .8rem; letter-spacing: .06em;
  color: var(--text-soft); text-align: center;
}

/* ============================================================
   4.0 · 黛山月色 Moonlit Pine —— 去金改冷，收敛金属感
   炭墨绿主导 + 月银灰点缀 + 朱砂仅存印章；文字渐变改象牙白。
   ============================================================ */
:root {
  --paper: #f7f6f0;
  --paper-warm: #f0efe7;
  --paper-deep: #e5e4d8;
  --ink: #121a17;
  --ink-2: #17211d;
  --ink-3: #1f2b26;
  --text-dark: #1b211e;
  --text-soft: #4d564f;
  --pine: #2e4a3e;
  --pine-bright: #47685a;
  --sage: #9db3a6;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
}

/* —— 首屏 —— */
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: #ccd8cf; }
.hero-eyebrow { color: #c3cfc6; }
.hero-tagline {
  background: linear-gradient(100deg, #f4f6f1 20%, #ccd8cf 55%, #f4f6f1 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: rgba(240, 242, 236, .92); }
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(190, 205, 196, .16), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(8, 12, 10, .42), transparent 60%);
}
.hero-cta .btn-solid {
  background: #eef1ea; color: #121a17;
  box-shadow: 0 18px 44px -16px rgba(0, 0, 0, .55);
}
.hero-cta .btn-solid:hover { background: #ffffff; color: #121a17; }
.hero-cta .btn-line { border-color: rgba(233, 238, 233, .4); color: #eef1ea; }
.hero-cta .btn-line:hover { border-color: #b7c4ba; color: #ccd8cf; }
.btn-solid { background: #eef1ea; color: #121a17; }
.btn-solid:hover { background: #ffffff; }
.btn-solid::after {
  background: linear-gradient(100deg, transparent, rgba(18, 26, 23, .12), transparent);
}

/* —— 章节体系 —— */
.sec-label { color: #5c6f63; }
.sec-label.light { color: #b7c4ba; }
.sec-title[data-wm]::before { -webkit-text-stroke: 1.5px rgba(18, 26, 23, .1); }
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 236, 229, .13); }

/* —— 字带 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .22); }
.marquee-track span { color: #eef0ea; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .75); color: transparent; }
.marquee-track span em { color: var(--cinnabar); }
.marquee-dark .marquee-track span em { color: #8a4530; }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(46, 74, 62, .75); }

/* —— 巨型 CTA / 宣言 —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 240, 234, .85); }
.giant-cta::before { background: linear-gradient(100deg, #eef0ea, #ffffff); }
.giant-cta:hover, .giant-cta:focus-visible { color: #f2f4ee; }
.q-statement-text {
  background: linear-gradient(100deg, #eef0ea 20%, #b7c4ba 55%, #eef0ea 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 数据/卡片细节 —— */
.stat-num { background: linear-gradient(120deg, #1b211e 30%, #3d4a42 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: #6f7d72; }
.herb-lot { color: #5c6f63; border-bottom-color: rgba(111, 125, 114, .32); }
.herb-season { color: #54685b; border-color: rgba(84, 104, 91, .42); }
.herb-more { background: linear-gradient(165deg, #1a2621, #121a17); }
.herb-more::before { color: rgba(183, 196, 186, .07); }
.hs-node .hs-note { color: #54685b; }

/* —— 印章/光标/滚动条 —— */
.scroll-seal > span { background: #121a17; box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0, 0, 0, .5); }
.scroll-seal i { background: linear-gradient(to bottom, #b7c4ba, rgba(183, 196, 186, .08)); }
.cursor-dot { background: #e8ebe4; }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: #b7c4ba; }
.cursor-ring.on { background: #121a17; }
.cursor-ring.on b { color: #ccd8cf; }
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: #6f7d72; }
.nav.on-dark.scrolled { background: rgba(14, 20, 17, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .14); }

/* —— 地图 / 实拍 —— */
#china-outline { fill: rgba(183, 196, 186, .06); stroke: rgba(233, 238, 233, .5); }
.footage-card::before { border-color: rgba(183, 196, 186, .5); }

/* —— 开屏 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .35), rgba(18, 26, 23, .95) 62%);
}
.pre-count { color: #b7c4ba; }

/* —— 品种卡印章/尾卡链接 —— */
.herb-seal { background: rgba(184, 69, 42, .92); }
.herb-more .text-link { color: #b7c4ba; }
.herb-more .text-link:hover { color: #eef0ea; }

/* ============================================================
   8.0 · 获奖语法  Award Grammar
   混合模式光标 / 编辑排版不对称 / 更克制的高级细节
   ============================================================ */

/* —— 光标：difference 反色，更小更利落 —— */
.cursor-dot {
  width: 6px; height: 6px; margin: -3px 0 0 -3px; background: #f2f4ee;
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .45);
}
.cursor-ring {
  width: 34px; height: 34px; margin: -17px 0 0 -17px;
  border: 1px solid rgba(230, 236, 230, .9);
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .18);
}
.cursor-ring.on { width: 62px; height: 62px; margin: -31px 0 0 -31px; background: rgba(18, 26, 23, .88); border-color: transparent; }
.cursor-ring.on b { color: #fff; }
.cursor-ring.big { width: 64px; height: 64px; margin: -32px 0 0 -32px; }
.cursor-ring.press { width: 26px; height: 26px; margin: -13px 0 0 -13px; }

/* —— 磁吸按钮过渡 —— */
.btn, .nav-links a, .footage-play, .lang-toggle { transition: transform .45s cubic-bezier(.22, .8, .32, 1), background .35s, color .35s, border-color .35s, box-shadow .35s; will-change: transform; }
.nav-links a { display: inline-block; }

/* —— 品种目录：编辑排版不对称（错落 + 巨型序号压图） —— */
.herb-card { flex: 0 0 clamp(250px, 23vw, 320px); }
.herb-card:nth-child(odd) { margin-top: 1.9rem; }
.herb-card:nth-child(3n) { margin-top: 3.4rem; }
.herb-card:first-child { flex-basis: clamp(280px, 26vw, 360px); }
.herb-num {
  position: absolute; z-index: 2; left: .9rem; top: .55rem;
  font-family: var(--font-display); font-weight: 900; font-size: 3.2rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(247, 246, 240, .9);
  text-shadow: 0 6px 30px rgba(0, 0, 0, .35);
  pointer-events: none; user-select: none;
  transition: transform .6s var(--ease-out);
}
.herb-card:hover .herb-num { transform: translateY(4px) scale(1.04); }
.herb-card .herb-lot { font-size: .58rem; }

/* —— 实拍卡：入场上斜切揭示 —— */
.footage-card { clip-path: inset(6% 4% 6% 4% round 16px); transition: clip-path .8s var(--ease-out); }
.footage-card:hover, .footage-card.playing { clip-path: inset(0 0 0 0 round 16px); }

/* —— 首屏标题：字距收紧、更利落 —— */
.hero-title { letter-spacing: .01em; }

/* —— 大水印更贴边（裁切感） —— */
.sec-title[data-wm]::before { left: -0.3em; }

/* —— 品质宣言字号提级 —— */
.q-statement-text { font-size: clamp(1.8rem, 4.6vw, 3.4rem); }

/* —— 导航：字距与悬停下划线 —— */
.nav-links a { position: relative; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -4px; height: 1px;
  background: currentColor; transition: right .4s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }

@media (max-width: 760px) {
  .herb-card:nth-child(odd), .herb-card:nth-child(3n) { margin-top: 0; }
  .herb-num { font-size: 2.4rem; }
}

/* —— 品种条 3D 扇形（JS 注入 --fan 变量；与悬停位移复合） —— */
@media (pointer: fine) {
  .catalog-strip { perspective: 1200px; }
  .catalog-strip .herb-card.reveal.on { transform: var(--fan, none); }
}

/* ============================================================
   11.0 · 骨架升级：全屏菜单 / 非对称首屏 / 帘幕开屏
   ============================================================ */

/* —— Lenis —— */
html.lenis-on, html.lenis-on body { scroll-behavior: auto; }
html.lenis-on.lenis-smooth { scroll-behavior: auto !important; }

/* —— 全屏菜单 —— */
.menu-overlay {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(14, 20, 17, .985);
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition: clip-path .65s cubic-bezier(.77, 0, .18, 1), visibility 0s .65s;
}
.menu-overlay.open { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path .65s cubic-bezier(.77, 0, .18, 1); }
.menu-inner {
  height: 100%; display: grid; grid-template-columns: 1.6fr 1fr;
  align-items: center; padding: clamp(5rem, 10vh, 7rem) clamp(1.4rem, 6vw, 6rem) clamp(2.4rem, 6vh, 4rem);
  max-width: 1280px; margin: 0 auto; gap: 3rem;
}
.menu-index { display: flex; flex-direction: column; }
.menu-index a {
  display: flex; align-items: baseline; gap: 1.3rem;
  padding: .34em 0; text-decoration: none;
  border-bottom: 1px solid rgba(183, 196, 186, .14);
  transform: translateY(26px); opacity: 0;
  transition: transform .6s var(--ease-out), opacity .6s;
}
.menu-overlay.open .menu-index a { transform: none; opacity: 1; }
.menu-overlay.open .menu-index a:nth-child(1) { transition-delay: .12s; }
.menu-overlay.open .menu-index a:nth-child(2) { transition-delay: .16s; }
.menu-overlay.open .menu-index a:nth-child(3) { transition-delay: .2s; }
.menu-overlay.open .menu-index a:nth-child(4) { transition-delay: .24s; }
.menu-overlay.open .menu-index a:nth-child(5) { transition-delay: .28s; }
.menu-overlay.open .menu-index a:nth-child(6) { transition-delay: .32s; }
.menu-overlay.open .menu-index a:nth-child(7) { transition-delay: .36s; }
.menu-overlay.open .menu-index a:nth-child(8) { transition-delay: .4s; }
.menu-index a i {
  font-family: var(--font-en); font-style: normal; font-size: .8rem;
  color: #6f7d72; letter-spacing: .1em; font-variant-numeric: tabular-nums;
  transition: color .3s;
}
.menu-index a span {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(1.7rem, 4.6vh, 2.7rem); letter-spacing: .06em; color: #eef0ea;
  transition: color .3s, transform .45s var(--ease-out);
}
.menu-index a:hover span, .menu-index a.active span { color: transparent; -webkit-text-stroke: 1px #ccd8cf; transform: translateX(10px); }
.menu-index a:hover i { color: #ccd8cf; }
.menu-side { display: flex; flex-direction: column; gap: 1.1rem; align-items: flex-start; }
.menu-brand { font-size: 2.2rem; color: #eef0ea; letter-spacing: .18em; }
.menu-coord { font-size: .78rem; color: #8b978e; letter-spacing: .18em; line-height: 2; }
.menu-tel {
  font-family: var(--font-en); font-size: 1.5rem; color: #ccd8cf; text-decoration: none;
  border-bottom: 1px solid rgba(183, 196, 186, .4); padding-bottom: .2rem;
}
.menu-tel:hover { color: #fff; }
.menu-note { font-size: .72rem; color: #6f7d72; letter-spacing: .14em; }
@media (max-width: 760px) {
  .menu-inner { grid-template-columns: 1fr; align-items: start; padding-top: 6rem; overflow-y: auto; }
  .menu-index a span { font-size: 1.45rem; }
  .menu-side { display: none; }
}

/* —— 菜单钮（两线，展开为 ×） —— */
.nav-burger span { display: block; width: 24px; height: 2px; background: currentColor; margin: 5px 0; transition: transform .4s var(--ease-out), opacity .3s; }
.nav-burger.open span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* —— 首屏非对称编辑排版 —— */
.hero-inner {
  align-items: flex-start; justify-content: flex-end;
  text-align: left; padding: 0 clamp(1.4rem, 6vw, 6rem) clamp(4.5rem, 12vh, 7.5rem);
}
.hero-eyebrow { margin-bottom: 1.1rem; }
.hero-title {
  display: flex; flex-direction: column; align-items: flex-start;
  font-size: clamp(3rem, 9.6vw, 8.2rem); line-height: 1.04; letter-spacing: .015em;
}
.hero-line { display: block; }
.hero-line-2 { color: transparent; -webkit-text-stroke: 1.5px rgba(238, 240, 234, .85); }
.hero-line-2 .ch { -webkit-text-stroke: inherit; }
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: #ccd8cf; -webkit-text-stroke: 0; }
.hero-row {
  display: flex; align-items: baseline; gap: 1.6rem; flex-wrap: wrap;
  margin-top: 1.6rem; padding-top: 1.2rem;
  border-top: 1px solid rgba(183, 196, 186, .28);
}
.hero-row .hero-tagline { margin: 0; font-size: clamp(1rem, 2.2vw, 1.5rem); }
.hero-row .hero-sub { margin: 0; font-size: .82rem; max-width: 34em; letter-spacing: .1em; }
.hero-cta { justify-content: flex-start; margin-top: 1.8rem; }
.hero-divider { display: none; }
.hero-coord {
  position: absolute; z-index: 6; right: clamp(1.1rem, 3vw, 2.4rem); top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 1.4rem;
  writing-mode: vertical-rl; font-family: var(--font-en);
  font-size: .66rem; letter-spacing: .42em; color: rgba(205, 216, 207, .55);
  border-left: 1px solid rgba(183, 196, 186, .25); padding-left: 1rem;
}
@media (max-width: 980px) {
  .hero-coord { display: none; }
  .hero-title { font-size: clamp(2.5rem, 12vw, 4.2rem); }
  .hero-inner { padding-bottom: 5.5rem; }
}

/* —— 开屏帘幕 —— */
.preloader { transition: none; }
.preloader.done .pre-ink, .preloader.done .preloader-text, .preloader.done .pre-count {
  opacity: 0; transition: opacity .35s ease;
}
.preloader.done {
  opacity: 1;
  animation: curtain .8s cubic-bezier(.77, 0, .18, 1) .25s forwards;
  visibility: visible;
}
@keyframes curtain {
  to { clip-path: inset(0 0 100% 0); visibility: hidden; }
}
@media (prefers-reduced-motion: reduce) {
  .preloader.done { animation: none; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
}

/* ============================================================
   12.0 · 章节过场 / 供应路线 / 页脚巨字 / 显影特写
   ============================================================ */

/* —— 过场屏 —— */
.interlude {
  position: relative; min-height: 72vh;
  display: grid; place-items: center; overflow: hidden;
  background: var(--paper); padding: 4rem 0;
}
.interlude-flip { background: var(--paper-deep); }
.interlude-ghost {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(9rem, 26vw, 24rem); line-height: 1; white-space: nowrap;
  color: transparent; -webkit-text-stroke: 1.5px rgba(18, 26, 23, .09);
  user-select: none; pointer-events: none;
}
.interlude-main { position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 1.4rem; }
.interlude-main p {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2.4rem, 7vw, 5rem); letter-spacing: .3em; text-indent: .3em;
  color: var(--ink);
}
.interlude-rule { width: clamp(60px, 12vw, 140px); height: 1px; background: rgba(18, 26, 23, .25); }
.interlude-main em { font-family: var(--font-en); font-style: italic; font-size: .95rem; color: #6f7d72; letter-spacing: .08em; }
body.lang-en .interlude-main em { font-style: normal; }
@media (prefers-reduced-motion: reduce) { .interlude-ghost { display: none; } }

/* —— 供应路线（贯穿全页，桌面） —— */
.route-line {
  position: absolute; top: 0; left: 0; width: 120px; height: 100%;
  z-index: 1; pointer-events: none; display: none; overflow: visible;
}
@media (min-width: 981px) { .route-line { display: block; } }
#route-dots circle { fill: var(--paper); stroke: #6f7d72; stroke-width: 1.2; }
#route-dots circle.lit { fill: #b8452a; stroke: #b8452a; }
#route-dots text { font-size: 9px; fill: #6f7d72; letter-spacing: .1em; font-family: var(--font-en); }

/* —— 页脚巨字 —— */
.footer {
  padding: clamp(3rem, 8vh, 5rem) clamp(1.2rem, 4vw, 3rem) 2rem;
  display: flex; flex-direction: column; align-items: center; gap: 2.2rem;
  position: relative; z-index: 2;
}
.footer-seal { display: none; }
.footer-mark {
  font-size: clamp(4.5rem, 16vw, 13rem); line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(238, 240, 234, .55);
  letter-spacing: .12em; user-select: none;
}
.footer-row {
  width: 100%; max-width: 1100px;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  border-top: 1px solid rgba(183, 196, 186, .2); padding-top: 1.6rem;
}
.footer-row p { font-size: .72rem; letter-spacing: .12em; color: rgba(205, 216, 207, .6); }
.back-top {
  background: none; border: 1px solid rgba(183, 196, 186, .35); color: #ccd8cf;
  font-size: .68rem; letter-spacing: .22em; padding: .7rem 1.3rem; border-radius: 999px;
  cursor: pointer; transition: border-color .3s, color .3s, transform .3s var(--ease-out);
}
.back-top:hover { border-color: #ccd8cf; color: #fff; transform: translateY(-3px); }

/* —— 特写图显影（黑白 → 彩色） —— */
.q-macros img { filter: grayscale(.85) contrast(1.03); transition: filter .8s ease, transform 1.2s var(--ease-out); }
.q-macros figure:hover img { filter: grayscale(0); }
@media (prefers-reduced-motion: reduce) { .q-macros img { filter: none; } }

#route-path { stroke-width: 2 !important; }

* ============================================================
   山西新谦益农业有限公司 · 本草山河，循时而生
   Design system: mineral green · cinnabar · bronze · rice paper
   ============================================================ */

:root {
  --ink: #1d2620;
  --ink-2: #232f27;
  --ink-3: #2c3b31;
  --pine: #2f5d50;
  --pine-bright: #4a7a64;
  --sage: #8fae98;
  --mist: #e9efe6;
  --paper: #f7f3e8;
  --paper-warm: #f1ebdb;
  --paper-deep: #e8e0cc;
  --cinnabar: #b8452a;
  --cinnabar-deep: #97351f;
  --bronze: #b08d57;
  --bronze-light: #cba96b;
  --text-dark: #2b332c;
  --text-soft: #5c675f;

  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-hand: "Ma Shan Zheng", "Noto Serif SC", cursive;
  --font-en: "Cormorant Garamond", "Noto Serif SC", serif;

  --ease-out: cubic-bezier(.22, .8, .32, 1);
  --shadow-card: 0 18px 50px -18px rgba(29, 38, 32, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body { width: 100%; }

/* 键盘可达性：跳转链接与焦点样式 */
.skip-link {
  position: fixed; top: -60px; left: 1rem; z-index: 300;
  padding: .6rem 1.1rem; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-size: .85rem; letter-spacing: .12em;
  transition: top .25s var(--ease-out);
}
.skip-link:focus { top: .8rem; }
:focus-visible { outline: 2px solid var(--bronze-light); outline-offset: 3px; border-radius: 4px; }

body {
  font-family: var(--font-sans);
  color: var(--text-dark);
  background: var(--paper);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--cinnabar); color: var(--paper); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: var(--pine); border-radius: 6px; border: 2px solid var(--paper-deep); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container { width: min(1180px, 90vw); margin: 0 auto; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .95s var(--ease-out), transform .95s var(--ease-out); will-change: opacity, transform; }
.reveal.on { opacity: 1; transform: none; }

/* ---------- typography shared ---------- */
.sec-label {
  font-family: var(--font-sans);
  font-size: .8rem; letter-spacing: .42em; font-weight: 500;
  color: var(--cinnabar); margin-bottom: 1.2rem;
}
.sec-label.light { color: var(--bronze-light); }
.sec-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.25;
  color: var(--ink); margin-bottom: 1.4rem; letter-spacing: .04em;
}
.sec-title.light { color: var(--paper); }
.sec-lead { max-width: 56em; color: var(--text-soft); font-size: 1.02rem; margin-bottom: 2.6rem; }
.sec-lead.light { color: rgba(233, 239, 230, .78); }

.seal-font { font-family: var(--font-serif); font-weight: 900; }
.hand-font { font-family: var(--font-hand); }

body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .01em; }
body.lang-en .hero-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .02em; }
body.lang-en .biz-card h3, body.lang-en .q-item h3, body.lang-en .value h3 { font-family: var(--font-en); letter-spacing: .02em; }

/* ============================================================
   Preloader
   ============================================================ */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.4rem;
  transition: opacity .8s ease .1s, visibility .8s ease .1s;
}
.preloader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-seal { color: var(--cinnabar); animation: sealIn 1s var(--ease-out) both; }
.preloader-text { font-family: var(--font-serif); color: var(--paper); letter-spacing: .5em; font-size: .95rem; opacity: 0; animation: fadeUp .9s ease .45s both; }
@keyframes sealIn { from { opacity: 0; transform: scale(1.5); } 60% { opacity: 1; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1.2rem, 4vw, 3rem);
  transition: background .45s ease, box-shadow .45s ease, padding .45s ease;
}
.nav.scrolled {
  background: rgba(244, 243, 236, .96);
  box-shadow: 0 1px 0 rgba(29, 38, 32, .08), 0 10px 40px -20px rgba(29, 38, 32, .3);
  padding-top: .6rem; padding-bottom: .6rem;
}
.nav.on-dark:not(.scrolled) { color: var(--paper); }
.nav-brand { display: flex; align-items: center; gap: .7rem; }
.nav-seal {
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.2rem;
  display: grid; place-items: center;
  box-shadow: 0 6px 18px -6px rgba(184, 69, 42, .55);
}
.nav-name { display: flex; flex-direction: column; line-height: 1.2; }
.nav-name-zh { font-family: var(--font-serif); font-weight: 700; font-size: 1.02rem; letter-spacing: .12em; }
.nav-name-en { font-size: .58rem; letter-spacing: .3em; opacity: .7; font-weight: 500; }
.nav-links { display: flex; gap: clamp(1rem, 2.4vw, 2.2rem); }
.nav-links a {
  font-size: .88rem; letter-spacing: .12em; font-weight: 500; position: relative; padding: .3rem 0;
  opacity: .85; transition: opacity .3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--cinnabar); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out);
}
.nav-links a:hover, .nav-links a.active { opacity: 1; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: .8rem; }
.lang-toggle {
  border: 1px solid currentColor; background: transparent; color: inherit;
  font-size: .72rem; letter-spacing: .12em; font-weight: 500;
  padding: .32rem .8rem; border-radius: 999px; opacity: .85;
  transition: background .3s, color .3s, opacity .3s;
}
.lang-toggle:hover { background: var(--cinnabar); border-color: var(--cinnabar); color: var(--paper); opacity: 1; }
.nav-burger { display: block; background: none; border: none; width: 34px; height: 26px; position: relative; color: inherit; }


/* ============================================================
   Screen 1 · Hero 山野初见
   ============================================================ */
.hero {
  position: relative; height: 100vh; height: 100svh; min-height: 620px; overflow: hidden;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .45), rgba(20, 28, 23, .7));
}
/* 视频背景层（调色已烧进 mp4，勿再加 CSS 滤镜） */
.hero-video {
  position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%;
  object-fit: cover;
}
/* 云雾带（screen 混合，缓慢横流） */
.hero-mistband {
  position: absolute; left: 0; width: 100%; z-index: 1;
  pointer-events: none; mix-blend-mode: screen;
  background: url('../assets/mist-band.webp') 50% 50% / 100% 100% no-repeat;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  mask-composite: intersect;
}
.hero-mistband-a { top: 36%; height: 24%; opacity: .25; animation: mistBreathe 22s ease-in-out infinite alternate; }
.hero-mistband-b { bottom: 4%; height: 30%; opacity: .18; z-index: 3; animation: mistBreathe 30s ease-in-out infinite alternate-reverse; }
@keyframes mistBreathe { from { opacity: .15; } to { opacity: .25; } }
#hero-canvas { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; display: block; }
.hero-vignette { z-index: 4; }
.hero-inner { z-index: 5; }
.hero-seal { z-index: 6; }
.scroll-hint { z-index: 6; }
.hero-vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .2), transparent 30%, transparent 70%, rgba(20, 28, 23, .55));
}
.hero-inner {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: var(--paper); padding: 0 6vw;
}
.hero-eyebrow { font-size: .78rem; letter-spacing: .55em; color: var(--bronze-light); margin-bottom: 2rem; font-weight: 500; text-shadow: 0 2px 18px rgba(20, 28, 23, .8); }
.hero-title {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.1rem, 6.2vw, 4.6rem); letter-spacing: .1em;
  text-shadow: 0 4px 40px rgba(0, 0, 0, .4);
}
.hero-divider { display: flex; align-items: center; gap: 1rem; margin: 1.6rem 0 1.3rem; color: var(--bronze-light); }
.hero-divider span { display: block; width: clamp(60px, 10vw, 130px); height: 1px; background: linear-gradient(to right, transparent, var(--bronze-light)); }
.hero-divider span:last-child { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-divider i { font-style: normal; font-size: .8rem; opacity: .9; }
.hero-tagline { font-family: var(--font-serif); font-size: clamp(1.2rem, 2.6vw, 1.9rem); letter-spacing: .34em; color: var(--paper); margin-bottom: 1rem; text-shadow: 0 2px 22px rgba(20, 28, 23, .75); }
.hero-sub { font-size: clamp(.85rem, 1.4vw, 1rem); letter-spacing: .22em; color: rgba(233, 239, 230, .82); font-weight: 300; text-shadow: 0 2px 16px rgba(20, 28, 23, .7); }
body.lang-en .hero-tagline { letter-spacing: .12em; font-size: clamp(1.1rem, 2.2vw, 1.6rem); }
body.lang-en .hero-sub { letter-spacing: .1em; }

.hero-seal {
  position: absolute; z-index: 3; right: clamp(1.2rem, 5vw, 4.5rem); bottom: clamp(5.5rem, 14vh, 9rem);
  display: flex; flex-direction: column;
  border: 2px solid rgba(184, 69, 42, .9); border-radius: 10px; overflow: hidden;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .5);
  background: rgba(184, 69, 42, .9);
}
.hero-seal span {
  width: 46px; height: 46px; display: grid; place-items: center;
  color: var(--paper); font-family: var(--font-serif); font-weight: 900; font-size: 1.35rem;
}
.scroll-hint {
  position: absolute; z-index: 3; left: 50%; bottom: 2.2rem; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .7rem; color: rgba(233, 239, 230, .75);
}
.scroll-hint-text { font-size: .68rem; letter-spacing: .34em; }
.scroll-hint-line { width: 1px; height: 52px; background: rgba(233, 239, 230, .35); position: relative; overflow: hidden; }
.scroll-hint-line::after {
  content: ""; position: absolute; left: 0; top: -50%; width: 100%; height: 50%;
  background: var(--bronze-light); animation: scrollDrop 2.2s ease-in-out infinite;
}
@keyframes scrollDrop { 0% { top: -50%; } 60%, 100% { top: 110%; } }

/* ============================================================
   Screen 2 · About 关于我们
   ============================================================ */
.about { position: relative; padding: clamp(6rem, 12vh, 9rem) 0 clamp(5rem, 10vh, 8rem); background: var(--paper); overflow: hidden; }
.about-bg { position: absolute; inset: 0; pointer-events: none; }
.about-bg-img {
  position: absolute; inset: -8% -6% auto -6%; height: 118%;
  background: url('../assets/about-terraces.webp') center 30% / cover no-repeat;
  opacity: .34;
  -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
  mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
}
.about-mist {
  position: absolute; left: -20%; width: 140%; height: 40%;
  background: radial-gradient(50% 60% at 50% 50%, rgba(247, 243, 232, .95), rgba(247, 243, 232, 0) 70%);
  filter: blur(10px);
}
.about-mist-a { top: -4%; }
.about-mist-b { top: 26%; opacity: .8; }
.about .container { position: relative; z-index: 2; }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin: 3rem 0 3.4rem; }
.value {
  background: rgba(255, 255, 255, .55);
  border: 1px solid rgba(47, 93, 80, .16);
  border-radius: 14px; padding: 1.8rem 1.6rem 1.6rem;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.value:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); }
.value-mark {
  display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1rem;
  border-radius: 10px; background: var(--pine); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.3rem;
}
.value h3 { font-family: var(--font-serif); font-size: 1.15rem; color: var(--ink); margin-bottom: .5rem; letter-spacing: .1em; }
.value p { font-size: .88rem; color: var(--text-soft); }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  border-top: 1px solid rgba(47, 93, 80, .2); border-bottom: 1px solid rgba(47, 93, 80, .2);
  padding: 2.2rem 0; margin-bottom: 3rem;
}
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-serif); font-weight: 900; font-size: clamp(1.9rem, 3.4vw, 2.8rem); color: var(--pine); line-height: 1.1; }
.stat-num i { font-style: normal; }
.stat-num em { font-style: normal; font-size: .55em; color: var(--cinnabar); margin-left: .1em; }
.stat-label { font-size: .8rem; letter-spacing: .1em; color: var(--text-soft); }

.about-loc {
  display: flex; align-items: center; justify-content: center; gap: .7rem;
  color: var(--pine); font-size: .92rem; letter-spacing: .06em;
}
.about-loc-pin { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: rgba(47, 93, 80, .1); }

/* ============================================================
   Screen 3 · History 发展历程（长卷）
   ============================================================ */
.history { position: relative; background: var(--ink-2); color: var(--paper); }
.history-pin { padding: clamp(5rem, 10vh, 7rem) 0 4.5rem; min-height: 100vh; display: flex; flex-direction: column; background: var(--ink-2); position: relative; z-index: 3; }
html.gsap-on .history-pin { overflow: hidden; }
.history-head { margin-bottom: 1rem; }

.scroll-viewport { position: relative; flex: 1; display: flex; align-items: center; }
.scroll-track {
  display: flex; align-items: stretch; gap: clamp(1.6rem, 3vw, 3rem);
  padding: 3.2rem clamp(1.2rem, 6vw, 6rem) 3.6rem;
  width: max-content;
  background:
    radial-gradient(140% 100% at 0% 0%, rgba(183, 196, 186, .06), transparent 50%),
    linear-gradient(to bottom, #efe9d8, #e9e1cd);
  color: var(--text-dark);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
  border-top: 6px solid #d8cfb6; border-bottom: 6px solid #d8cfb6;
  position: relative;
}
.scroll-track::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");
}
html:not(.gsap-on) .scroll-track { flex-direction: column; width: auto; margin: 0 5vw; }

.hs-node {
  position: relative; flex: 0 0 auto; width: min(480px, 82vw);
  padding: 2rem 2rem 1.6rem; display: flex; flex-direction: column; gap: .7rem;
  border-left: 1px solid rgba(47, 93, 80, .25);
}
.hs-node:first-child { border-left: none; }
.hs-year {
  font-family: var(--font-serif); font-weight: 900; font-size: clamp(2.6rem, 5vw, 4rem);
  color: var(--pine); line-height: 1; letter-spacing: .02em;
}
.hs-key .hs-year { color: var(--cinnabar); }
.hs-node h3 { font-family: var(--font-serif); font-size: 1.25rem; color: var(--ink); letter-spacing: .04em; }
.hs-node p { font-size: .92rem; color: var(--text-soft); }
.hs-era { font-size: .8rem; letter-spacing: .3em; color: var(--bronze); font-weight: 500; }
.hs-note { font-size: 1.35rem; color: var(--cinnabar); transform: rotate(-2deg); margin-top: .4rem; }
.hs-year-seal {
  width: 64px; height: 64px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 10px;
  font-size: 1.05rem; letter-spacing: .05em; text-align: center; line-height: 1.25;
  transform: rotate(-4deg); box-shadow: 0 10px 24px -10px rgba(184, 69, 42, .6);
  padding: 6px;
}
.hs-year-seal.cinnabar { background: var(--cinnabar-deep); }
.hs-photo { margin-top: .8rem; border: 6px solid #fbf8ef; box-shadow: 0 14px 34px -14px rgba(29, 38, 32, .4); transform: rotate(-1.2deg); }
.hs-photo img { width: 100%; height: 210px; object-fit: cover; }
.hs-today { background: rgba(47, 93, 80, .06); border-radius: 0 16px 16px 0; }

.scroll-progress { margin: 2.4rem auto 0; width: min(420px, 70vw); height: 2px; background: rgba(233, 239, 230, .18); border-radius: 2px; overflow: hidden; }
.scroll-progress span { display: block; height: 100%; width: 0; background: var(--bronze-light); }

/* ============================================================
   Screen 4 · Business 主营产业
   ============================================================ */
.business { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper-warm); }
.biz-grid { display: flex; gap: 10px; height: min(76vh, 640px); min-height: 480px; padding: 0 clamp(1rem, 4vw, 3rem); }
.biz-card {
  position: relative; flex: 1; border-radius: 18px; overflow: hidden;
  cursor: pointer; isolation: isolate;
  transition: flex .8s var(--ease-out);
  box-shadow: 0 20px 50px -25px rgba(29, 38, 32, .5);
}
.biz-card:hover, .biz-card:focus-within { flex: 2.7; }
.biz-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.06); filter: saturate(.82) brightness(.86);
  transition: transform 1.1s var(--ease-out), filter .8s ease;
}
.biz-card:hover .biz-bg { transform: scale(1); filter: saturate(1) brightness(.96); }
.biz-card::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(20, 28, 23, .88) 0%, rgba(20, 28, 23, .35) 46%, rgba(20, 28, 23, .12) 100%);
  transition: background .6s ease;
}
.biz-sprout {
  position: absolute; z-index: 2; right: 8%; bottom: 34%; width: 60px; color: rgba(233, 239, 230, 0);
  transition: color .8s ease .1s;
}
.biz-card:hover .biz-sprout { color: rgba(233, 239, 230, .85); }
.biz-sprout svg { width: 100%; }
.sprout-stem, .sprout-leaf, .sprout-top { stroke-dasharray: 220; stroke-dashoffset: 220; transition: stroke-dashoffset 1.6s var(--ease-out) .15s; }
.biz-card:hover .sprout-stem, .biz-card:hover .sprout-leaf, .biz-card:hover .sprout-top { stroke-dashoffset: 0; }
.biz-content {
  position: absolute; z-index: 2; left: 0; right: 0; bottom: 0;
  padding: 1.8rem 1.7rem 1.6rem; color: var(--paper);
}
.biz-index {
  font-family: var(--font-en); font-size: .85rem; letter-spacing: .3em;
  color: var(--bronze-light); display: block; margin-bottom: .5rem;
}
.biz-card h3 { font-family: var(--font-serif); font-weight: 700; font-size: clamp(1.25rem, 2vw, 1.7rem); letter-spacing: .14em; margin-bottom: .3rem; white-space: nowrap; }
.biz-tag { font-size: .76rem; letter-spacing: .18em; color: rgba(233, 239, 230, .75); margin-bottom: .8rem; white-space: nowrap; }
.biz-desc {
  font-size: .88rem; color: rgba(233, 239, 230, .92); max-width: 34em;
  opacity: 0; transform: translateY(14px); transition: opacity .6s ease .18s, transform .6s var(--ease-out) .18s;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.biz-card:hover .biz-desc, .biz-card:focus-within .biz-desc { opacity: 1; transform: none; }

/* ============================================================
   Screen 5 · Network 产地与供应网络
   ============================================================ */
.network { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--ink); color: var(--paper); position: relative; overflow: hidden; }
.network::before {
  content: ""; position: absolute; inset: 0; opacity: .05; pointer-events: none;
  background-image:
    linear-gradient(to bottom, rgba(241,235,219,.45) 0%, rgba(241,235,219,0) 8%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}
.map-wrap { position: relative; width: min(1060px, 94vw); margin: 1rem auto 0; }
#china-map { width: 100%; height: auto; display: block; }
#china-outline {
  fill: rgba(143, 174, 152, .09); stroke: rgba(233, 239, 230, .55); stroke-width: 1.5;
  stroke-linejoin: round; stroke-linecap: round;
}
.inset-box { fill: rgba(29, 38, 32, .35); stroke: rgba(233, 239, 230, .4); stroke-width: 1.1; }
.dash-line { fill: none; stroke: rgba(233, 239, 230, .7); stroke-width: 2; stroke-linecap: round; }
.inset-label { fill: rgba(233, 239, 230, .65); font-size: 12px; font-family: var(--font-sans); letter-spacing: .15em; }
.map-route { fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-dasharray: 6 7; opacity: .75; }
.map-route.r1 { stroke: var(--cinnabar); }
.map-route.r2 { stroke: var(--bronze-light); }
.map-route.r3 { stroke: var(--sage); }
.marker { cursor: pointer; }
.marker-dot { transition: r .3s ease; }
.marker:hover .marker-dot, .marker.active .marker-dot { r: 9; }
.marker-ring { transform-box: fill-box; transform-origin: center; animation: ringPulse 2.6s ease-out infinite; }
@keyframes ringPulse { 0% { transform: scale(.4); opacity: .9; } 80%, 100% { transform: scale(2.1); opacity: 0; } }
.marker-label { fill: rgba(233, 239, 230, .85); font-size: 13px; font-family: var(--font-sans); letter-spacing: .08em; pointer-events: none; }
.map-tip {
  position: absolute; z-index: 5; min-width: 240px; max-width: 320px;
  background: rgba(247, 243, 232, .97); color: var(--text-dark);
  border-radius: 12px; padding: 1.1rem 1.25rem; box-shadow: 0 24px 60px -20px rgba(0, 0, 0, .6);
  border-top: 4px solid var(--cinnabar);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity .35s ease, transform .35s var(--ease-out);
}
.map-tip.show { opacity: 1; transform: none; pointer-events: auto; }
.map-tip h4 { font-family: var(--font-serif); font-size: 1.1rem; color: var(--ink); margin-bottom: .15rem; }
.map-tip .tip-role { font-size: .72rem; letter-spacing: .2em; color: var(--cinnabar); margin-bottom: .55rem; }
.map-tip p { font-size: .84rem; color: var(--text-soft); }
.map-tip p b { color: var(--pine); font-weight: 500; }
.map-legend {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.6rem; margin-top: 2.2rem;
  font-size: .82rem; color: rgba(233, 239, 230, .8);
}
.legend-item { display: flex; align-items: center; gap: .5rem; }
.legend-item b { font-weight: 500; letter-spacing: .08em; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-hq { background: var(--cinnabar); }
.dot-hub { background: var(--bronze-light); }
.dot-partner { background: var(--sage); }
.map-note { margin-left: auto; font-size: .74rem; opacity: .55; }

/* ============================================================
   Screen 6 · Quality 品质与加工
   ============================================================ */
.quality { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper); }
.q-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-bottom: 4rem; }
.q-item {
  background: #fff; border: 1px solid rgba(47, 93, 80, .12); border-radius: 14px;
  padding: 1.7rem 1.6rem 1.5rem; transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.q-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.q-item svg { width: 40px; height: 40px; color: var(--pine); margin-bottom: .9rem; }
.q-item h3 { font-family: var(--font-serif); font-size: 1.08rem; letter-spacing: .1em; color: var(--ink); margin-bottom: .4rem; }
.q-item p { font-size: .86rem; color: var(--text-soft); }

.q-feature {
  display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(1.6rem, 4vw, 3.5rem);
  align-items: center;
  background: var(--pine); border-radius: 22px; padding: clamp(1.8rem, 4vw, 3.2rem);
  color: var(--paper); margin-bottom: 4rem;
  box-shadow: 0 30px 70px -30px rgba(47, 93, 80, .55);
}
.q-feature-kicker { font-size: .74rem; letter-spacing: .34em; color: var(--bronze-light); margin-bottom: .8rem; }
.q-feature h3 { font-family: var(--font-serif); font-size: clamp(1.4rem, 2.6vw, 2rem); letter-spacing: .06em; margin-bottom: 1rem; }
.q-feature-text > p { font-size: .94rem; color: rgba(233, 239, 230, .85); margin-bottom: 1.4rem; }
.q-feature-list { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.q-feature-list li { font-size: .88rem; padding-left: 1.3rem; position: relative; }
.q-feature-list li::before { content: ""; position: absolute; left: 0; top: .58em; width: 7px; height: 7px; border-radius: 50%; background: var(--bronze-light); }
.q-feature-media video {
  width: 100%; border-radius: 14px; display: block; background: #101815;
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, .6);
}
.q-video-cap { text-align: center; font-size: .78rem; letter-spacing: .2em; color: rgba(233, 239, 230, .65); margin-top: .8rem; }

.q-macros { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }

/* Quality statement banner with video bg */
.q-statement {
  position: relative; height: 340px; border-radius: 20px; overflow: hidden;
  margin-bottom: 4rem; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
}
.q-statement-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
}
.q-statement-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(20, 28, 23, .65), rgba(20, 28, 23, .35));
}
.q-statement-text {
  position: relative; z-index: 2; color: var(--paper);
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem); letter-spacing: .14em;
  text-align: center; text-shadow: 0 2px 30px rgba(0, 0, 0, .5);
}
.q-macros figure { position: relative; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-card); }
.q-macros img { width: 100%; height: 300px; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.q-macros figure:hover img { transform: scale(1.05); }
.q-macros figcaption {
  position: absolute; left: 1.2rem; bottom: 1rem; color: var(--paper);
  font-family: var(--font-serif); letter-spacing: .2em; font-size: .95rem;
  text-shadow: 0 2px 14px rgba(0, 0, 0, .6);
}

/* ============================================================
   Screen 7 · Contact 归于庭院
   ============================================================ */
.contact { position: relative; padding: clamp(7rem, 14vh, 10rem) 0 0; background: var(--ink-2); color: var(--paper); overflow: hidden; }
.contact-bg {
  position: absolute; inset: 0;
  background: url('../assets/contact-courtyard.webp') center 60% / cover no-repeat;
  opacity: .5;
}
.contact::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(241,235,219,.3) 0%, rgba(241,235,219,0) 9%),
    linear-gradient(to bottom, rgba(29, 38, 32, .88), rgba(29, 38, 32, .55) 45%, rgba(29, 38, 32, .9));
}
.bamboo-shadow {
  position: absolute; right: -40px; top: -30px; width: clamp(260px, 34vw, 480px);
  color: rgba(10, 16, 12, .55); filter: blur(7px); pointer-events: none;
  transform-origin: top right;
  animation: sway 9s ease-in-out infinite alternate;
}
@keyframes sway { from { transform: rotate(-1.6deg) translateX(-6px); } to { transform: rotate(1.8deg) translateX(8px); } }
.contact-inner { position: relative; z-index: 2; }
.contact-card {
  margin-top: 1rem; max-width: 640px;
  background: rgba(16, 22, 19, .58);
  border: 1px solid rgba(233, 239, 230, .18);
  border-radius: 18px; padding: 2.2rem 2.4rem;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
}
.contact-row {
  display: grid; grid-template-columns: 110px 1fr; gap: 1rem; align-items: baseline;
  padding: .9rem 0; border-bottom: 1px solid rgba(233, 239, 230, .12);
}
.contact-row:last-of-type { border-bottom: none; }
.contact-key { font-size: .76rem; letter-spacing: .26em; color: var(--bronze-light); }
.contact-val { font-family: var(--font-serif); font-size: 1.12rem; letter-spacing: .05em; }
.contact-phone { font-size: 1.5rem; letter-spacing: .1em; color: var(--bronze-light); }
.contact-actions { display: flex; gap: 1rem; margin-top: 1.8rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .85rem 2.1rem; border-radius: 999px; font-size: .92rem; letter-spacing: .16em;
  transition: transform .35s var(--ease-out), box-shadow .35s ease, background .35s ease, color .35s ease;
  border: 1px solid transparent;
}
.btn-solid { background: var(--cinnabar); color: var(--paper); box-shadow: 0 14px 34px -12px rgba(184, 69, 42, .6); }
.btn-solid:hover { transform: translateY(-3px); background: var(--cinnabar-deep); }
.btn-line { background: transparent; color: var(--paper); border-color: rgba(233, 239, 230, .5); }
.btn-line:hover { transform: translateY(-3px); border-color: var(--bronze-light); color: var(--bronze-light); }
.footer {
  position: relative; z-index: 2; margin-top: clamp(4rem, 9vh, 6rem);
  border-top: 1px solid rgba(233, 239, 230, .14);
  padding: 2rem clamp(1.2rem, 4vw, 3rem) 2.4rem;
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  font-size: .8rem; color: rgba(233, 239, 230, .6); text-align: center; flex-wrap: wrap;
}
.footer-seal {
  width: 30px; height: 30px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 6px; font-size: .95rem;
}

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 2.4rem; z-index: 150;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--ink); color: var(--paper); border: 1px solid rgba(183, 196, 186, .5);
  padding: .7rem 1.5rem; border-radius: 999px; font-size: .85rem; letter-spacing: .1em;
  transition: opacity .4s ease, transform .4s var(--ease-out);
  box-shadow: 0 20px 50px -16px rgba(0, 0, 0, .5);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   Section Background Videos (Agnes AI generated)
   ============================================================ */
.section-bg-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0; pointer-events: none;
}
/* About section video: subtle, behind the existing bg layers */
.about .section-bg-video {
  opacity: .22;
}
.about .about-bg, .about .container { position: relative; z-index: 2; }

/* Network section video */
.network .section-bg-video {
  opacity: .18;
}
.network .container, .network .map-wrap, .network .map-legend { position: relative; z-index: 2; }

/* Quality section video */
.quality .section-bg-video {
  opacity: .12;
}
.quality .container { position: relative; z-index: 2; }

/* Contact section video */
.contact .section-bg-video {
  opacity: .35;
}
.contact .contact-bg, .contact .bamboo-shadow, .contact .container, .contact .footer { position: relative; z-index: 2; }

/* ============================================================
   Screen 7 · 实地影像 Field Films
   ============================================================ */
.media {
  padding: clamp(6rem, 12vh, 9rem) 0;
  background: var(--paper-warm);
  position: relative; overflow: hidden;
}
.media-feature {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 2rem;
  margin-top: 2rem; align-items: center;
}
.doc-video {
  width: 100%; aspect-ratio: 854 / 480; border-radius: 18px;
  background: #101613; box-shadow: var(--shadow-card); display: block;
}
.doc-copy { color: var(--ink); }
.doc-copy span { font-size: .72rem; letter-spacing: .14em; color: var(--cinnabar); font-weight: 600; }
.doc-copy h3 { font-family: var(--font-serif); font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 600; margin: .4rem 0 .6rem; letter-spacing: .04em; }
.doc-copy p { font-size: .92rem; color: var(--text-soft); line-height: 1.9; }
.doc-note { font-size: .74rem !important; color: var(--text-soft) !important; letter-spacing: .08em; margin-top: .9rem; padding-top: .9rem; border-top: 1px solid rgba(29, 38, 32, .14); }
.footage-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 2.2rem;
}
.footage-card {
  position: relative; border-radius: 16px; overflow: hidden;
  aspect-ratio: 427 / 320; cursor: pointer; isolation: isolate;
  box-shadow: var(--shadow-card);
}
.footage-card video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
  filter: saturate(.82) contrast(.98);
  transition: transform 1.2s var(--ease-out), filter .6s ease;
}
.footage-card:hover video { transform: scale(1.05); filter: saturate(1); }
.footage-card figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  display: flex; flex-direction: column; gap: .15rem;
  padding: 1.9rem .95rem .8rem;
  background: linear-gradient(to top, rgba(16, 22, 19, .82), transparent);
  color: var(--paper);
}
.footage-card figcaption b { font-family: var(--font-serif); font-size: .92rem; font-weight: 600; letter-spacing: .06em; }
.footage-card figcaption span { font-size: .64rem; letter-spacing: .12em; color: rgba(233, 239, 230, .66); }
.footage-play {
  position: absolute; right: .85rem; top: .85rem; z-index: 2;
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(16, 22, 19, .62); border: 1px solid rgba(233, 239, 230, .4);
  cursor: pointer;
  display: grid; place-items: center; transition: background .3s, transform .3s;
}
.footage-play i {
  width: 0; height: 0; margin-left: 2px;
  border-left: 10px solid var(--paper); border-top: 6.5px solid transparent; border-bottom: 6.5px solid transparent;
}
.footage-card:hover .footage-play { background: var(--cinnabar); transform: scale(1.08); }
.footage-card.playing .footage-play i {
  margin-left: 0; border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 9px solid var(--paper); border-bottom: none;
}
.media-note { margin-top: 1.6rem; font-size: .76rem; color: var(--text-soft); letter-spacing: .08em; }

/* ============================================================
   Section Transition Feather Zones
   Apple-keynote-style gradient blends between adjacent sections.
   ::after = top feather (blend into THIS section's bg from above)
   ::before = bottom feather (blend THIS section into the next)
   Dark→Light and Light→Dark transitions get a 120px soft gradient.
   ============================================================ */
section { position: relative; }

/* --- Top feathers: blend the PREVIOUS section's tone into this one --- */

/* About (light) receives dark hero from above */
.about::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.4) 50%, transparent 100%);
  opacity: .85;
}

/* History (dark) receives light about from above — feather the paper into ink */
.history::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper-warm) 0%, rgba(241,235,219,.3) 50%, transparent 100%);
}

/* Business (light) receives dark history from above */
.business::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink-2) 0%, rgba(35,47,39,.3) 50%, transparent 100%);
  opacity: .7;
}

/* Network (dark) receives light business from above - merged with noise texture */
/* The top feather is added to the existing .network::before below */

/* Quality (light) receives dark network from above */
.quality::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.3) 50%, transparent 100%);
  opacity: .6;
}

/* Media (light) receives light quality — subtle paper-tone blend */
.media::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper) 0%, rgba(247,243,232,.3) 50%, transparent 100%);
}

/* Contact (dark) receives light media from above - merged with existing dark overlay below */
/* The top feather is added to the existing .contact::before below */

/* --- Bottom feathers: blend this section into the NEXT one --- */

/* Hero (dark) blends into light About below */
.hero::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 4; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(247,243,232,.3) 50%, var(--paper) 100%);
}

/* About (light) blends into dark History below */
.about::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(35,47,39,.3) 50%, var(--ink-2) 100%);
  opacity: .8;
}

/* Business (light) blends into dark Network below */
.business::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink) 100%);
  opacity: .7;
}

/* Quality (light) blends into light Media below — subtle */
.quality::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.2) 50%, var(--paper-warm) 100%);
}

/* Media (light) blends into dark Contact below */
.media::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink-2) 100%);
  opacity: .7;
}

/* History bottom blends into Business (light) below — handled by scroll-track edge */
.history::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 3; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.25) 50%, var(--paper-warm) 100%);
}

/* --- Section entrance: fade/slide up on scroll (GSAP ScrollTrigger driven) --- */
.section-enter {
  opacity: 0; transform: translateY(40px);
  will-change: opacity, transform;
}
html.gsap-on .section-enter.gsap-revealed {
  opacity: 1; transform: none;
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .q-grid { grid-template-columns: repeat(2, 1fr); }
  .q-feature { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr 1fr; }
  .media-feature { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed; top: 0; right: 0; z-index: 99;
    flex-direction: column; gap: 1.6rem;
    background: rgba(29, 38, 32, .97); color: var(--paper);
    width: min(320px, 78vw); height: 100vh; padding: 6.5rem 2.4rem;
    transform: translateX(100%); transition: transform .5s var(--ease-out);
  }
  .nav-links.open { transform: none; }
  .nav-links a { font-size: 1.05rem; }
  .nav-burger { display: block; }
}

@media (max-width: 768px) {
  .values { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 1.8rem; }
  .biz-grid { flex-direction: column; height: auto; min-height: 0; }
  .biz-card { min-height: 300px; }
  .biz-card:hover { flex: 1; }
  .biz-desc { opacity: 1; transform: none; -webkit-line-clamp: unset; }
  .q-grid { grid-template-columns: 1fr; }
  .q-macros { grid-template-columns: 1fr; }
  .contact-row { grid-template-columns: 1fr; gap: .2rem; }
  .hero-seal { display: none; }
  .hs-photo img { height: 170px; }
  .map-note { margin-left: 0; }
  .media-grid { grid-template-columns: 1fr; }
  .press-card { min-height: 200px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-hint-line::after, .marker-ring, .bamboo-shadow { animation: none; }
  .biz-card, .biz-bg, .value, .q-item { transition: none; }
}

/* ============================================================
   Hero CTAs · 首屏行动按钮
   ============================================================ */
.hero-cta { display: flex; gap: .9rem; margin-top: 2.4rem; justify-content: center; flex-wrap: wrap; }
.hero-cta .btn { padding: .8rem 2rem; font-size: .82rem; letter-spacing: .18em; }

/* ============================================================
   Screen 4 · 主营品种 Herb Catalog
   ============================================================ */
.catalog { padding: clamp(6rem, 12vh, 9rem) 0 clamp(4rem, 8vh, 6rem); background: var(--paper); position: relative; overflow: hidden; }
.catalog-strip-wrap { position: relative; margin-top: 2.6rem; }
.catalog-strip-wrap::before, .catalog-strip-wrap::after {
  content: ""; position: absolute; top: 0; bottom: 0; z-index: 2; width: 7vw; pointer-events: none;
}
.catalog-strip-wrap::before { left: 0; background: linear-gradient(to right, var(--paper), transparent); }
.catalog-strip-wrap::after { right: 0; background: linear-gradient(to left, var(--paper), transparent); }
.catalog-strip {
  display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: .6rem clamp(1rem, 4vw, 3rem) 1.2rem;
  scrollbar-width: none; -ms-overflow-style: none; cursor: grab;
}
.catalog-strip::-webkit-scrollbar { display: none; }
.catalog-strip.dragging { cursor: grabbing; scroll-snap-type: none; }
.herb-card {
  flex: 0 0 clamp(240px, 22vw, 300px); scroll-snap-align: start;
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(47, 93, 80, .14);
  border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.herb-card:hover { transform: translateY(-6px); box-shadow: 0 26px 60px -20px rgba(29, 38, 32, .45); }
.herb-img { position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: var(--paper-deep); }
.herb-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 1.4s var(--ease-out); }
.herb-card:hover .herb-img img { transform: scale(1.06); }
.herb-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(16, 22, 19, .32), transparent 45%);
}
.herb-body { padding: 1.15rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.herb-body h3 {
  font-family: var(--font-serif); font-size: 1.18rem; font-weight: 700;
  color: var(--ink); letter-spacing: .08em;
  display: flex; align-items: baseline; gap: .55rem; flex-wrap: wrap;
}
.herb-body h3 em {
  font-family: var(--font-en); font-style: italic; font-weight: 500;
  font-size: .68rem; letter-spacing: .04em; color: var(--text-soft);
}
.herb-note { font-size: .8rem; color: var(--text-soft); margin: .45rem 0 .8rem; line-height: 1.7; }
.herb-body ul { list-style: none; display: flex; flex-direction: column; gap: .42rem; margin-top: auto; }
.herb-body li { display: flex; align-items: baseline; gap: .55rem; font-size: .78rem; color: var(--text-soft); }
.herb-body li b {
  font-family: var(--font-serif); font-size: 1.06rem; color: var(--pine);
  min-width: 2.6em; text-align: right; letter-spacing: .02em;
}
.herb-body li span { line-height: 1.55; }
.herb-season {
  align-self: flex-start; margin-top: .95rem;
  font-size: .66rem; letter-spacing: .16em; color: var(--cinnabar);
  border: 1px solid rgba(184, 69, 42, .35); border-radius: 999px;
  padding: .28rem .8rem;
}
.herb-more {
  flex-basis: clamp(220px, 18vw, 260px);
  background: linear-gradient(160deg, var(--pine) 0%, var(--ink-3) 100%);
  border: none; justify-content: center;
}
.herb-more h3 { color: var(--paper); font-size: 1.3rem; }
.herb-more .herb-note { color: rgba(233, 239, 230, .8); font-size: .82rem; line-height: 1.9; }
.herb-more .text-link { margin-top: 1rem; align-self: flex-start; }
.text-link {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .78rem; letter-spacing: .1em; font-weight: 600;
  transition: color .3s;
}
.catalog .text-link, .light-text .text-link { color: var(--cinnabar); }
.catalog .text-link:hover { color: var(--cinnabar-deep); }
.herb-more .text-link { color: var(--bronze-light); }
.herb-more .text-link:hover { color: var(--paper); }

@media (max-width: 900px) {
  .media-feature { grid-template-columns: 1fr; }
  .footage-grid { grid-template-columns: 1fr 1fr; }
  .herb-card, .herb-more { flex-basis: 74vw; }
  .catalog-strip-wrap::before, .catalog-strip-wrap::after { width: 4vw; }
}
@media (max-width: 560px) {
  .footage-grid { grid-template-columns: 1fr; }
  .footage-card { aspect-ratio: 854 / 480; }
  .hero-cta .btn { padding: .72rem 1.4rem; }
}

/* ============================================================
   视觉升级 · 宋版书与朱印  Aesthetic Pass
   ============================================================ */

/* —— 全局：纸张颗粒 + 选区 + 滚动条 —— */
::selection { background: rgba(184, 69, 42, .85); color: var(--paper); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-warm); }
::-webkit-scrollbar-thumb { background: rgba(47, 93, 80, .35); border-radius: 5px; border: 2px solid var(--paper-warm); }
::-webkit-scrollbar-thumb:hover { background: var(--pine); }

/* —— 首屏：提亮 + 暖金晨光 + 更有层次的字 —— */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(183, 196, 186, .20), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(23, 33, 26, .30), transparent 60%);
  mix-blend-mode: screen;
}
.hero-title {
  font-size: clamp(2.3rem, 6.8vw, 5rem);
  text-shadow: 0 6px 60px rgba(10, 16, 12, .55), 0 1px 0 rgba(0, 0, 0, .25);
}
.hero-eyebrow { display: inline-flex; align-items: center; gap: 1rem; }
.hero-eyebrow::before, .hero-eyebrow::after {
  content: ""; width: clamp(28px, 6vw, 72px); height: 1px;
  background: linear-gradient(to right, transparent, var(--bronze-light));
}
.hero-eyebrow::after { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-tagline {
  background: linear-gradient(105deg, #f2ead8 15%, var(--bronze-light) 50%, #f2ead8 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-cta .btn-solid { box-shadow: 0 18px 44px -14px rgba(184, 69, 42, .75); }

/* 首屏右侧竖排诗句 */
.hero-verse {
  position: absolute; z-index: 6; right: clamp(4.6rem, 9vw, 8.2rem); top: 50%;
  transform: translateY(-54%);
  display: flex; flex-direction: column; gap: 1.3rem;
  writing-mode: vertical-rl; letter-spacing: .58em;
  font-family: var(--font-serif); font-size: 1.02rem; color: rgba(233, 239, 230, .8);
  text-shadow: 0 2px 18px rgba(10, 16, 12, .8);
  border-right: 1px solid rgba(183, 196, 186, .4); padding-right: 1.05rem;
}
.hero-verse span:last-child { color: var(--bronze-light); }
@media (max-width: 980px) { .hero-verse { display: none; } }

/* —— 章节标题：大字水印 + 标签章 —— */
.sec-title { position: relative; }
.sec-title[data-wm]::before {
  content: attr(data-wm);
  position: absolute; z-index: -1;
  top: -0.62em; left: -0.34em;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(6.5rem, 15vw, 13rem); line-height: 1;
  color: rgba(29, 38, 32, .055);
  pointer-events: none; user-select: none;
}
.sec-title.light[data-wm]::before { color: rgba(233, 239, 230, .075); }
.sec-title { z-index: 1; } /* ensure stacking above wm */
.container { position: relative; }
.sec-label { display: inline-flex; align-items: center; gap: .7rem; }
.sec-label::before {
  content: ""; width: 10px; height: 10px; border-radius: 3px;
  background: var(--cinnabar); box-shadow: 0 0 0 1px rgba(184, 69, 42, .35), inset 0 0 0 2px rgba(247, 243, 232, .35);
}
.sec-label.light::before { background: var(--bronze-light); box-shadow: 0 0 0 1px rgba(183, 196, 186, .4), inset 0 0 0 2px rgba(29, 38, 32, .3); }

/* —— 数据与卡片细节 —— */
.stat-num { background: linear-gradient(120deg, var(--pine) 30%, #3e7263 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.value-mark { box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .22), 0 10px 24px -12px rgba(47, 93, 80, .55); }
.herb-seal {
  position: absolute; z-index: 2; top: .8rem; right: .8rem;
  writing-mode: vertical-rl; letter-spacing: .3em;
  font-family: var(--font-serif); font-weight: 700; font-size: .72rem;
  color: #f7f3e8; background: rgba(184, 69, 42, .92);
  padding: .5rem .34rem .34rem; border-radius: 6px;
  box-shadow: 0 6px 18px -6px rgba(0, 0, 0, .45), inset 0 0 0 1px rgba(247, 243, 232, .3);
}
.herb-more { position: relative; overflow: hidden; }
.herb-more::before {
  content: "药"; position: absolute; right: -1.2rem; bottom: -2.4rem;
  font-family: var(--font-serif); font-weight: 900; font-size: 9rem; line-height: 1;
  color: rgba(233, 239, 230, .07); pointer-events: none;
}
.footage-card::before {
  content: attr(data-idx);
  position: absolute; z-index: 3; left: .85rem; top: .78rem;
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 6px; font-family: var(--font-serif); font-weight: 700; font-size: .82rem;
  color: var(--paper); background: rgba(16, 22, 19, .66);
  border: 1px solid rgba(183, 196, 186, .5);
  pointer-events: none;
}

/* —— 品质宣言字 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2ead8 20%, var(--bronze-light) 55%, #f2ead8 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 导航细节 —— */
.nav.on-dark.scrolled {
  background: rgba(20, 28, 23, .72);
  box-shadow: 0 1px 0 rgba(233, 239, 230, .1), 0 10px 40px -20px rgba(0, 0, 0, .5);
}
.nav-seal { transition: transform .6s var(--ease-out); }
.nav-brand:hover .nav-seal { transform: rotate(-8deg) scale(1.06); }

/* —— 按钮统一细节 —— */
.btn { position: relative; overflow: hidden; }
.btn-solid::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(247, 243, 232, .35), transparent);
  transform: skewX(-22deg); transition: left .7s var(--ease-out);
}
.btn-solid:hover::after { left: 130%; }

@media (prefers-reduced-motion: reduce) {
  .btn-solid::after { display: none; }
  .nav-seal { transition: none; }
}

/* ============================================================
   大改 2.0 · 沉浸式交互层  Immersive Layer
   ============================================================ */

/* —— 开屏：墨滴 + 印章 + 计数 —— */
.preloader { flex-direction: column; gap: 1.6rem; }
.preloader-seal { display: none; }
.pre-ink { position: relative; width: 120px; height: 120px; display: grid; place-items: center; }
.pre-blot {
  position: absolute; inset: 0; border-radius: 46% 54% 52% 48% / 55% 48% 52% 45%;
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .28), rgba(29, 38, 32, .92) 62%);
  transform: scale(0); animation: blot 1.5s var(--ease-out) .1s forwards;
  filter: blur(1px);
}
@keyframes blot {
  0% { transform: scale(0) rotate(-8deg); }
  62% { transform: scale(1.06) rotate(2deg); }
  100% { transform: scale(1) rotate(0deg); }
}
.pre-seal {
  position: relative; color: var(--paper); font-size: 3.2rem;
  opacity: 0; animation: sealIn .8s var(--ease-out) 1s forwards;
  text-shadow: 0 4px 24px rgba(0, 0, 0, .5);
}
@keyframes sealIn { from { opacity: 0; transform: scale(1.7); } to { opacity: 1; transform: scale(1); } }
.pre-count {
  position: absolute; right: clamp(1.2rem, 4vw, 3rem); bottom: clamp(1rem, 3vh, 2rem);
  font-family: var(--font-en); font-size: .95rem; letter-spacing: .3em; color: var(--bronze-light);
}

/* —— 首屏：墨池 + 描边大字 —— */
#ink-canvas { position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; display: block; pointer-events: none; }
.hero-outline {
  position: absolute; z-index: 1; left: 50%; top: 50%; transform: translate(-50%, -52%);
  display: flex; gap: 1.2em; pointer-events: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(11rem, 34vw, 30rem); line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(233, 239, 230, .13);
  user-select: none;
}
.hero-outline span { display: block; }
.hero-outline span:last-child { transform: translateY(.18em); }
@media (max-width: 980px) { .hero-outline { font-size: clamp(7rem, 30vw, 12rem); } }

/* —— 逐字动效 —— */
.hero-title .ch, .sec-title .ch { display: inline-block; }
.reveal .ch { opacity: 0; }
.reveal.on .ch {
  animation: chIn .9s var(--ease-out) var(--d, 0ms) both;
}
@keyframes chIn {
  from { opacity: 0; transform: translateY(.6em) rotate(4deg); filter: blur(10px); }
  to { opacity: 1; transform: none; filter: blur(0); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal .ch { opacity: 1; }
  .reveal.on .ch { animation: none; }
}

/* —— 动态字带 —— */
.marquee {
  position: relative; overflow: hidden; padding: 1.15rem 0;
  background: var(--ink); border-top: 1px solid rgba(183, 196, 186, .25); border-bottom: 1px solid rgba(183, 196, 186, .25);
}
.marquee-track {
  display: flex; width: max-content; gap: 3.2rem;
  animation: mq 46s linear infinite;
}
.marquee-track span {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.6rem); letter-spacing: .3em;
  color: var(--paper); white-space: nowrap;
}
.marquee-track span em { font-style: normal; font-size: .5em; color: var(--cinnabar); margin-left: 3.2rem; vertical-align: .35em; }
.marquee-track .hollow { color: transparent; -webkit-text-stroke: 1px rgba(183, 196, 186, .75); }
.marquee-track .hollow em { -webkit-text-stroke: 0; }
@keyframes mq { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }
.marquee-dark { background: var(--paper-deep); border-color: rgba(29, 38, 32, .12); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(184, 69, 42, .6); }
.marquee-dark .marquee-track span em { color: rgba(184, 69, 42, .8); }

/* —— 巨型 CTA（联系） —— */
.giant-cta {
  display: block; margin: 1.2rem 0 2.6rem; text-decoration: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.6rem, 8.5vw, 7rem); line-height: 1.15; letter-spacing: .12em;
  color: transparent; -webkit-text-stroke: 1.5px rgba(233, 239, 230, .8);
  position: relative; overflow: hidden; width: fit-content;
  transition: color .5s var(--ease-out);
}
.giant-cta::after {
  content: "WALK THE SEASONS WITH US"; position: absolute; left: .1em; bottom: -1.1em;
  font-family: var(--font-en); font-weight: 600; font-style: italic;
  font-size: .16em; letter-spacing: .6em; color: rgba(183, 196, 186, .85);
  -webkit-text-stroke: 0; white-space: nowrap;
}
.giant-cta .giant-cta-t { position: relative; z-index: 1; }
.giant-cta::before {
  content: ""; position: absolute; z-index: 0; inset: 0;
  background: linear-gradient(100deg, var(--bronze-light), #e8d5a8);
  transform: translateX(-101%); transition: transform .7s var(--ease-out);
  -webkit-background-clip: text;
}
.giant-cta:hover, .giant-cta:focus-visible { color: var(--bronze-light); -webkit-text-stroke-color: transparent; }
.giant-cta:hover::before { transform: translateX(0); }

/* —— 滚动印章 —— */
.scroll-seal {
  position: fixed; right: 1.35rem; top: 50%; transform: translateY(-50%);
  z-index: 90; display: flex; flex-direction: column; align-items: center; gap: .8rem;
  pointer-events: none;
}
.scroll-seal > span {
  width: 34px; height: 34px; display: grid; place-items: center;
  background: rgba(184, 69, 42, .92); color: var(--paper);
  font-size: 1.05rem; border-radius: 8px;
  box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .3), 0 8px 20px -8px rgba(0, 0, 0, .5);
}
.scroll-seal i {
  width: 1px; height: clamp(90px, 22vh, 190px);
  background: linear-gradient(to bottom, rgba(183, 196, 186, .8), rgba(183, 196, 186, .1));
  transform: scaleY(0); transform-origin: top;
}
@media (max-width: 980px) { .scroll-seal { display: none; } }

/* —— 墨点光标 —— */
@media (pointer: fine) {
  html.has-cursor, html.has-cursor body { cursor: none; }
  html.has-cursor a, html.has-cursor button, html.has-cursor video { cursor: none; }
}
.cursor-dot, .cursor-ring {
  position: fixed; left: 0; top: 0; z-index: 1000; pointer-events: none;
  opacity: 0; transition: opacity .3s;
}
.cursor-dot {
  width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px; border-radius: 50%;
  background: var(--cinnabar);
}
.cursor-ring {
  width: 40px; height: 40px; margin: -20px 0 0 -20px; border-radius: 50%;
  border: 1.5px solid rgba(183, 196, 186, .8);
  display: grid; place-items: center;
  transition: opacity .3s, width .35s var(--ease-out), height .35s var(--ease-out),
              margin .35s var(--ease-out), background .35s, border-color .35s;
}
.cursor-ring b {
  font-family: var(--font-serif); font-weight: 700; font-size: .82rem; color: var(--paper);
  opacity: 0; transform: scale(.5); transition: opacity .25s, transform .25s var(--ease-out);
}
.cursor-ring.on {
  width: 64px; height: 64px; margin: -32px 0 0 -32px;
  background: rgba(184, 69, 42, .92); border-color: transparent;
}
.cursor-ring.on b { opacity: 1; transform: scale(1); }
.cursor-ring.big {
  width: 76px; height: 76px; margin: -38px 0 0 -38px;
  border-color: var(--bronze-light);
}
.cursor-ring.press { transform-origin: center; }

/* —— 磁吸倾斜：高光跟随指针（biz 用 .biz-bg::after，herb 用卡片 ::after） —— */
.biz-card, .herb-card { transform-style: preserve-3d; will-change: transform; }
.biz-card.tilting, .herb-card.tilting { transition: none !important; }
.biz-bg::after, .herb-card::after {
  content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none; opacity: 0;
  border-radius: inherit;
  background: radial-gradient(340px circle at var(--gx, 50%) var(--gy, 50%), rgba(247, 243, 232, .17), transparent 65%);
  transition: opacity .4s;
}
.biz-card.tilting .biz-bg::after, .herb-card.tilting::after { opacity: 1; }

/* —— 品种条指针样式 —— */
.catalog-strip[data-cursor] { cursor: grab; }
.catalog-strip.dragging { cursor: grabbing !important; }

/* —— 交互细节补 —— */
.biz-card { transition: flex .8s var(--ease-out), transform .6s var(--ease-out); }
body.lang-en .giant-cta::after { display: none; }
body.lang-en .giant-cta { -webkit-text-stroke-color: rgba(233, 239, 230, .8); }
.cursor-ring.press { width: 30px; height: 30px; margin: -15px 0 0 -15px; }

/* ============================================================
   3.0 视觉系统重制 · 琥珀档案  Amber Archive
   诊断：旧版（米纸+衬线+赤陶）命中 AI 模板脸。重制为：
   药材琥珀/黄芩金主色 + 特粗黑体编辑排版 + 批号档案系统 + 硬对比。
   ============================================================ */

/* —— 令牌覆盖 —— */
:root {
  --paper: #faf8f2;
  --paper-warm: #f3f0e6;
  --paper-deep: #e9e4d2;
  --ink: #17150e;
  --ink-2: #221f15;
  --ink-3: #302b1d;
  --text-dark: #201d14;
  --text-soft: #55503f;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --cinnabar: #b8452a;   /* 仅保留印章语义 */
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* —— 排版：特粗黑体编辑系统 —— */
.hero-title, .sec-title {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: .015em;
}
.hero-title { font-size: clamp(2.4rem, 7.4vw, 5.6rem); }
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: var(--amber); }
body.lang-en .hero-title, body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; }
.sec-title { font-size: clamp(2rem, 4.6vw, 3.4rem); }
.sec-lead { color: var(--text-soft); font-size: 1.05rem; }

/* —— 章节标签：档案索引 —— */
.sec-label {
  color: var(--amber-deep);
  font-weight: 700; letter-spacing: .3em; font-size: .78rem;
  font-variant-numeric: tabular-nums;
}
.sec-label.light { color: var(--bronze-light); }
.sec-label::before { display: none; }
.sec-label::after {
  content: ""; width: clamp(40px, 7vw, 90px); height: 1px;
  background: currentColor; opacity: .5; margin-left: .4rem;
}

/* —— 大字水印 → 巨型轮廓数字 —— */
.sec-title[data-wm]::before {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(9rem, 22vw, 19rem);
  top: -0.5em; left: -0.18em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(23, 21, 14, .1);
}
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 226, 204, .14); color: transparent; }

/* —— 首屏重排：干净 + 大字 + 琥珀 —— */
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(183, 196, 186, .22), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(15, 13, 8, .38), transparent 60%);
}
.hero-eyebrow { color: var(--bronze-light); letter-spacing: .5em; }
.hero-tagline {
  background: linear-gradient(100deg, #f5efdd 20%, var(--bronze-light) 55%, #f5efdd 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-family: var(--font-display); font-weight: 700; letter-spacing: .3em;
}
.hero-sub { color: rgba(238, 233, 216, .92); font-weight: 400; letter-spacing: .28em; }
.hero-cta .btn-solid {
  background: var(--ink); color: #f2edda;
  box-shadow: 0 18px 44px -14px rgba(0, 0, 0, .65);
}
.hero-cta .btn-solid:hover { background: var(--amber-deep); }
.hero-cta .btn-line { border-color: rgba(233, 226, 204, .45); color: #f2edda; }
.hero-cta .btn-line:hover { border-color: var(--bronze-light); color: var(--bronze-light); }

/* —— 字带：墨底珀金 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .35); }
.marquee-track span { color: #f2edda; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .8); color: transparent; }
.marquee-track span em { color: var(--amber); }
.marquee-dark { background: var(--paper-deep); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(111, 125, 114, .7); }

/* —— 巨型 CTA —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 233, 216, .85); font-family: var(--font-display); letter-spacing: .06em; }
.giant-cta::before { background: linear-gradient(100deg, var(--amber), #e8c56a); }
.giant-cta:hover, .giant-cta:focus-visible { color: var(--amber); }

/* —— 数据与卡片 —— */
.stat-num { background: linear-gradient(120deg, var(--ink) 30%, #4a3f22 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: var(--amber-deep); }
.value-mark { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(242, 237, 218, .2); }
.value { border-color: rgba(23, 21, 14, .12); }
.value:hover { box-shadow: 0 24px 60px -24px rgba(23, 21, 14, .3); }

/* —— 品种卡：标本批号 —— */
.herb-lot {
  display: block; margin: .3rem 0 .5rem;
  font-size: .62rem; letter-spacing: .14em; color: var(--amber-deep);
  font-variant-numeric: tabular-nums; font-weight: 500;
  padding-bottom: .5rem; border-bottom: 1px dashed rgba(111, 125, 114, .3);
}
.herb-body h3 { letter-spacing: .04em; }
.herb-season { color: var(--amber-deep); border-color: rgba(111, 125, 114, .4); }
.herb-more { background: linear-gradient(165deg, #262216, #17150e); }
.herb-more::before { color: rgba(183, 196, 186, .08); }

/* —— 品质宣言 / 图表 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2edda 20%, var(--amber) 55%, #f2edda 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hs-year { color: var(--ink); }
.hs-node .hs-note { color: var(--amber-deep); }

/* —— 印章体系：朱砂仅限印 —— */
.scroll-seal > span { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0,0,0,.5); }
.scroll-seal i { background: linear-gradient(to bottom, var(--amber), rgba(183, 196, 186, .08)); }

/* —— 光标：琥珀 —— */
.cursor-dot { background: var(--amber); }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: var(--amber); }
.cursor-ring.on { background: var(--ink); }
.cursor-ring.on b { color: var(--amber); }

/* —— 导航 / 滚动条 —— */
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: var(--amber-deep); }
.nav.on-dark.scrolled { background: rgba(20, 18, 12, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .16); }
.nav-links a.active { color: var(--amber); }

/* —— 按钮扫光保留，实底换墨色 —— */
.btn-solid { background: var(--ink); }
.btn-solid:hover { background: var(--amber-deep); }

/* —— 地图图例 —— */
.dot-hub { background: var(--amber) !important; }
.dot-partner { background: #8a7b54 !important; }

/* —— 开屏：墨滴换琥珀晕 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .5), rgba(23, 21, 14, .95) 62%);
}
.pre-count { color: var(--amber); }

/* —— 3.0 补：旧松绿系令牌收敛为乌木/橄榄金 —— */
:root {
  --pine: #33401f;
  --pine-bright: #5b6c33;
  --sage: #a3945f;
}
#china-outline { fill: rgba(183, 196, 186, .07); stroke: rgba(236, 229, 206, .5); }
.inset-box { fill: rgba(23, 21, 14, .35); }

/* ============================================================
   手机端专项优化 Mobile Pass
   ============================================================ */
@media (max-width: 760px) {
  /* 首屏：更大字号、收紧留白、CTA 满宽 */
  .hero-inner { padding: 0 7vw; }
  .hero-title { font-size: clamp(1.75rem, 8.6vw, 2.6rem); letter-spacing: .02em; line-height: 1.28; }
  .hero-tagline { font-size: clamp(1.05rem, 4.6vw, 1.4rem); letter-spacing: .22em; }
  .hero-sub { font-size: .8rem; letter-spacing: .12em; line-height: 1.9; }
  .hero-eyebrow { letter-spacing: .34em; margin-bottom: 1.4rem; }
  .hero-cta { margin-top: 1.9rem; gap: .7rem; }
  .hero-cta .btn { width: min(320px, 78vw); justify-content: center; }
  .hero-seal { transform: scale(.82); transform-origin: bottom right; }
  .scroll-hint { bottom: 1.4rem; }

  /* 章节头：字号与水印收敛 */
  .sec-title { font-size: clamp(1.55rem, 6.4vw, 2.1rem); }
  .sec-title[data-wm]::before { font-size: clamp(5.6rem, 26vw, 8rem); top: -0.55em; left: -0.1em; }
  .sec-lead { font-size: .95rem; line-height: 2; }
  .sec-label { letter-spacing: .2em; font-size: .7rem; }

  /* 品种卡与标签 */
  .herb-card, .herb-more { flex-basis: 76vw; }
  .herb-lot { font-size: .58rem; letter-spacing: .1em; }
  .herb-body h3 { font-size: 1.08rem; }

  /* 数据/数值 */
  .stats { row-gap: 1.5rem; }
  .stat-num { font-size: clamp(1.6rem, 7vw, 2.2rem); }

  /* 巨型 CTA */
  .giant-cta { font-size: clamp(1.9rem, 10.5vw, 3rem); letter-spacing: .08em; }
  .giant-cta::after { font-size: .14em; letter-spacing: .4em; }

  /* 字带 */
  .marquee-track span { font-size: 1.15rem; letter-spacing: .22em; }

  /* 纪录片与实拍卡说明 */
  .doc-copy p { line-height: 2; }
  .footage-card figcaption b { font-size: .84rem; }

  /* 联系卡 */
  .contact-card { padding: 1.4rem 1.2rem; }

  /* 开屏 */
  .pre-ink { width: 96px; height: 96px; }
  .pre-seal { font-size: 2.6rem; }
}
@media (max-width: 400px) {
  .hero-title { font-size: 1.62rem; }
  .hero-cta .btn { width: 86vw; }
}

/* —— 性能：低可见度背景视频改静态图（免解码） —— */
.section-bg-img {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  pointer-events: none;
}
.network-bg-img { opacity: .18; background-image: url('../assets/clip-network-poster.jpg'); }
.quality-bg-img { opacity: .12; background-image: url('../assets/clip-quality-poster.jpg'); }

/* —— 修复：发展历程移动端白屏（轨道无裁剪溢出，v4 起遗留） —— */
@media (max-width: 768px) {
  .history-pin { min-height: 0; padding: clamp(4rem, 9vh, 6rem) 0 3rem; }
  .scroll-viewport {
    overflow-x: auto; overflow-y: hidden;
    scrollbar-width: none; -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  .scroll-viewport::-webkit-scrollbar { display: none; }
  .scroll-track { padding: 1.4rem 1.3rem 1.8rem; gap: 1.2rem; }
  .hs-node { width: 78vw; scroll-snap-align: center; padding: 1.6rem 1.4rem 1.4rem; }
  .scroll-progress { display: none; }
}

/* —— 主营产业实拍角标 —— */
.biz-real-tag {
  position: absolute; z-index: 3; top: .9rem; right: .9rem;
  writing-mode: vertical-rl; letter-spacing: .28em;
  font-family: var(--font-serif); font-weight: 700; font-size: .7rem;
  color: #f2edda; background: rgba(23, 21, 14, .68);
  border: 1px solid rgba(183, 196, 186, .55);
  padding: .5rem .32rem .34rem; border-radius: 6px;
}

/* —— 客户信任句 —— */
.clients-note {
  margin-top: 2.2rem; font-size: .8rem; letter-spacing: .06em;
  color: var(--text-soft); text-align: center;
}

/* ============================================================
   4.0 · 黛山月色 Moonlit Pine —— 去金改冷，收敛金属感
   炭墨绿主导 + 月银灰点缀 + 朱砂仅存印章；文字渐变改象牙白。
   ============================================================ */
:root {
  --paper: #f7f6f0;
  --paper-warm: #f0efe7;
  --paper-deep: #e5e4d8;
  --ink: #121a17;
  --ink-2: #17211d;
  --ink-3: #1f2b26;
  --text-dark: #1b211e;
  --text-soft: #4d564f;
  --pine: #2e4a3e;
  --pine-bright: #47685a;
  --sage: #9db3a6;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
}

/* —— 首屏 —— */
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: #ccd8cf; }
.hero-eyebrow { color: #c3cfc6; }
.hero-tagline {
  background: linear-gradient(100deg, #f4f6f1 20%, #ccd8cf 55%, #f4f6f1 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: rgba(240, 242, 236, .92); }
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(190, 205, 196, .16), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(8, 12, 10, .42), transparent 60%);
}
.hero-cta .btn-solid {
  background: #eef1ea; color: #121a17;
  box-shadow: 0 18px 44px -16px rgba(0, 0, 0, .55);
}
.hero-cta .btn-solid:hover { background: #ffffff; color: #121a17; }
.hero-cta .btn-line { border-color: rgba(233, 238, 233, .4); color: #eef1ea; }
.hero-cta .btn-line:hover { border-color: #b7c4ba; color: #ccd8cf; }
.btn-solid { background: #eef1ea; color: #121a17; }
.btn-solid:hover { background: #ffffff; }
.btn-solid::after {
  background: linear-gradient(100deg, transparent, rgba(18, 26, 23, .12), transparent);
}

/* —— 章节体系 —— */
.sec-label { color: #5c6f63; }
.sec-label.light { color: #b7c4ba; }
.sec-title[data-wm]::before { -webkit-text-stroke: 1.5px rgba(18, 26, 23, .1); }
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 236, 229, .13); }

/* —— 字带 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .22); }
.marquee-track span { color: #eef0ea; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .75); color: transparent; }
.marquee-track span em { color: var(--cinnabar); }
.marquee-dark .marquee-track span em { color: #8a4530; }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(46, 74, 62, .75); }

/* —— 巨型 CTA / 宣言 —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 240, 234, .85); }
.giant-cta::before { background: linear-gradient(100deg, #eef0ea, #ffffff); }
.giant-cta:hover, .giant-cta:focus-visible { color: #f2f4ee; }
.q-statement-text {
  background: linear-gradient(100deg, #eef0ea 20%, #b7c4ba 55%, #eef0ea 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 数据/卡片细节 —— */
.stat-num { background: linear-gradient(120deg, #1b211e 30%, #3d4a42 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: #6f7d72; }
.herb-lot { color: #5c6f63; border-bottom-color: rgba(111, 125, 114, .32); }
.herb-season { color: #54685b; border-color: rgba(84, 104, 91, .42); }
.herb-more { background: linear-gradient(165deg, #1a2621, #121a17); }
.herb-more::before { color: rgba(183, 196, 186, .07); }
.hs-node .hs-note { color: #54685b; }

/* —— 印章/光标/滚动条 —— */
.scroll-seal > span { background: #121a17; box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0, 0, 0, .5); }
.scroll-seal i { background: linear-gradient(to bottom, #b7c4ba, rgba(183, 196, 186, .08)); }
.cursor-dot { background: #e8ebe4; }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: #b7c4ba; }
.cursor-ring.on { background: #121a17; }
.cursor-ring.on b { color: #ccd8cf; }
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: #6f7d72; }
.nav.on-dark.scrolled { background: rgba(14, 20, 17, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .14); }

/* —— 地图 / 实拍 —— */
#china-outline { fill: rgba(183, 196, 186, .06); stroke: rgba(233, 238, 233, .5); }
.footage-card::before { border-color: rgba(183, 196, 186, .5); }

/* —— 开屏 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .35), rgba(18, 26, 23, .95) 62%);
}
.pre-count { color: #b7c4ba; }

/* —— 品种卡印章/尾卡链接 —— */
.herb-seal { background: rgba(184, 69, 42, .92); }
.herb-more .text-link { color: #b7c4ba; }
.herb-more .text-link:hover { color: #eef0ea; }

/* ============================================================
   8.0 · 获奖语法  Award Grammar
   混合模式光标 / 编辑排版不对称 / 更克制的高级细节
   ============================================================ */

/* —— 光标：difference 反色，更小更利落 —— */
.cursor-dot {
  width: 6px; height: 6px; margin: -3px 0 0 -3px; background: #f2f4ee;
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .45);
}
.cursor-ring {
  width: 34px; height: 34px; margin: -17px 0 0 -17px;
  border: 1px solid rgba(230, 236, 230, .9);
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .18);
}
.cursor-ring.on { width: 62px; height: 62px; margin: -31px 0 0 -31px; background: rgba(18, 26, 23, .88); border-color: transparent; }
.cursor-ring.on b { color: #fff; }
.cursor-ring.big { width: 64px; height: 64px; margin: -32px 0 0 -32px; }
.cursor-ring.press { width: 26px; height: 26px; margin: -13px 0 0 -13px; }

/* —— 磁吸按钮过渡 —— */
.btn, .nav-links a, .footage-play, .lang-toggle { transition: transform .45s cubic-bezier(.22, .8, .32, 1), background .35s, color .35s, border-color .35s, box-shadow .35s; will-change: transform; }
.nav-links a { display: inline-block; }

/* —— 品种目录：编辑排版不对称（错落 + 巨型序号压图） —— */
.herb-card { flex: 0 0 clamp(250px, 23vw, 320px); }
.herb-card:nth-child(odd) { margin-top: 1.9rem; }
.herb-card:nth-child(3n) { margin-top: 3.4rem; }
.herb-card:first-child { flex-basis: clamp(280px, 26vw, 360px); }
.herb-num {
  position: absolute; z-index: 2; left: .9rem; top: .55rem;
  font-family: var(--font-display); font-weight: 900; font-size: 3.2rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(247, 246, 240, .9);
  text-shadow: 0 6px 30px rgba(0, 0, 0, .35);
  pointer-events: none; user-select: none;
  transition: transform .6s var(--ease-out);
}
.herb-card:hover .herb-num { transform: translateY(4px) scale(1.04); }
.herb-card .herb-lot { font-size: .58rem; }

/* —— 实拍卡：入场上斜切揭示 —— */
.footage-card { clip-path: inset(6% 4% 6% 4% round 16px); transition: clip-path .8s var(--ease-out); }
.footage-card:hover, .footage-card.playing { clip-path: inset(0 0 0 0 round 16px); }

/* —— 首屏标题：字距收紧、更利落 —— */
.hero-title { letter-spacing: .01em; }

/* —— 大水印更贴边（裁切感） —— */
.sec-title[data-wm]::before { left: -0.3em; }

/* —— 品质宣言字号提级 —— */
.q-statement-text { font-size: clamp(1.8rem, 4.6vw, 3.4rem); }

/* —— 导航：字距与悬停下划线 —— */
.nav-links a { position: relative; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -4px; height: 1px;
  background: currentColor; transition: right .4s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }

@media (max-width: 760px) {
  .herb-card:nth-child(odd), .herb-card:nth-child(3n) { margin-top: 0; }
  .herb-num { font-size: 2.4rem; }
}

* ============================================================
   山西新谦益农业有限公司 · 本草山河，循时而生
   Design system: mineral green · cinnabar · bronze · rice paper
   ============================================================ */

:root {
  --ink: #1d2620;
  --ink-2: #232f27;
  --ink-3: #2c3b31;
  --pine: #2f5d50;
  --pine-bright: #4a7a64;
  --sage: #8fae98;
  --mist: #e9efe6;
  --paper: #f7f3e8;
  --paper-warm: #f1ebdb;
  --paper-deep: #e8e0cc;
  --cinnabar: #b8452a;
  --cinnabar-deep: #97351f;
  --bronze: #b08d57;
  --bronze-light: #cba96b;
  --text-dark: #2b332c;
  --text-soft: #5c675f;

  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-hand: "Ma Shan Zheng", "Noto Serif SC", cursive;
  --font-en: "Cormorant Garamond", "Noto Serif SC", serif;

  --ease-out: cubic-bezier(.22, .8, .32, 1);
  --shadow-card: 0 18px 50px -18px rgba(29, 38, 32, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body { width: 100%; }

/* 键盘可达性：跳转链接与焦点样式 */
.skip-link {
  position: fixed; top: -60px; left: 1rem; z-index: 300;
  padding: .6rem 1.1rem; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-size: .85rem; letter-spacing: .12em;
  transition: top .25s var(--ease-out);
}
.skip-link:focus { top: .8rem; }
:focus-visible { outline: 2px solid var(--bronze-light); outline-offset: 3px; border-radius: 4px; }

body {
  font-family: var(--font-sans);
  color: var(--text-dark);
  background: var(--paper);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--cinnabar); color: var(--paper); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: var(--pine); border-radius: 6px; border: 2px solid var(--paper-deep); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container { width: min(1180px, 90vw); margin: 0 auto; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .95s var(--ease-out), transform .95s var(--ease-out); will-change: opacity, transform; }
.reveal.on { opacity: 1; transform: none; }

/* ---------- typography shared ---------- */
.sec-label {
  font-family: var(--font-sans);
  font-size: .8rem; letter-spacing: .42em; font-weight: 500;
  color: var(--cinnabar); margin-bottom: 1.2rem;
}
.sec-label.light { color: var(--bronze-light); }
.sec-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.25;
  color: var(--ink); margin-bottom: 1.4rem; letter-spacing: .04em;
}
.sec-title.light { color: var(--paper); }
.sec-lead { max-width: 56em; color: var(--text-soft); font-size: 1.02rem; margin-bottom: 2.6rem; }
.sec-lead.light { color: rgba(233, 239, 230, .78); }

.seal-font { font-family: var(--font-serif); font-weight: 900; }
.hand-font { font-family: var(--font-hand); }

body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .01em; }
body.lang-en .hero-title { font-family: var(--font-en); font-weight: 600; letter-spacing: .02em; }
body.lang-en .biz-card h3, body.lang-en .q-item h3, body.lang-en .value h3 { font-family: var(--font-en); letter-spacing: .02em; }

/* ============================================================
   Preloader
   ============================================================ */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.4rem;
  transition: opacity .8s ease .1s, visibility .8s ease .1s;
}
.preloader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-seal { color: var(--cinnabar); animation: sealIn 1s var(--ease-out) both; }
.preloader-text { font-family: var(--font-serif); color: var(--paper); letter-spacing: .5em; font-size: .95rem; opacity: 0; animation: fadeUp .9s ease .45s both; }
@keyframes sealIn { from { opacity: 0; transform: scale(1.5); } 60% { opacity: 1; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1.2rem, 4vw, 3rem);
  transition: background .45s ease, box-shadow .45s ease, padding .45s ease;
}
.nav.scrolled {
  background: rgba(244, 243, 236, .96);
  box-shadow: 0 1px 0 rgba(29, 38, 32, .08), 0 10px 40px -20px rgba(29, 38, 32, .3);
  padding-top: .6rem; padding-bottom: .6rem;
}
.nav.on-dark:not(.scrolled) { color: var(--paper); }
.nav-brand { display: flex; align-items: center; gap: .7rem; }
.nav-seal {
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--cinnabar); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.2rem;
  display: grid; place-items: center;
  box-shadow: 0 6px 18px -6px rgba(184, 69, 42, .55);
}
.nav-name { display: flex; flex-direction: column; line-height: 1.2; }
.nav-name-zh { font-family: var(--font-serif); font-weight: 700; font-size: 1.02rem; letter-spacing: .12em; }
.nav-name-en { font-size: .58rem; letter-spacing: .3em; opacity: .7; font-weight: 500; }
.nav-links { display: flex; gap: clamp(1rem, 2.4vw, 2.2rem); }
.nav-links a {
  font-size: .88rem; letter-spacing: .12em; font-weight: 500; position: relative; padding: .3rem 0;
  opacity: .85; transition: opacity .3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--cinnabar); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out);
}
.nav-links a:hover, .nav-links a.active { opacity: 1; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: .8rem; }
.lang-toggle {
  border: 1px solid currentColor; background: transparent; color: inherit;
  font-size: .72rem; letter-spacing: .12em; font-weight: 500;
  padding: .32rem .8rem; border-radius: 999px; opacity: .85;
  transition: background .3s, color .3s, opacity .3s;
}
.lang-toggle:hover { background: var(--cinnabar); border-color: var(--cinnabar); color: var(--paper); opacity: 1; }
.nav-burger { display: block; background: none; border: none; width: 34px; height: 26px; position: relative; color: inherit; }


/* ============================================================
   Screen 1 · Hero 山野初见
   ============================================================ */
.hero {
  position: relative; height: 100vh; height: 100svh; min-height: 620px; overflow: hidden;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .45), rgba(20, 28, 23, .7));
}
/* 视频背景层（调色已烧进 mp4，勿再加 CSS 滤镜） */
.hero-video {
  position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%;
  object-fit: cover;
}
/* 云雾带（screen 混合，缓慢横流） */
.hero-mistband {
  position: absolute; left: 0; width: 100%; z-index: 1;
  pointer-events: none; mix-blend-mode: screen;
  background: url('../assets/mist-band.webp') 50% 50% / 100% 100% no-repeat;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to bottom, transparent, black 28%, black 72%, transparent), linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  mask-composite: intersect;
}
.hero-mistband-a { top: 36%; height: 24%; opacity: .25; animation: mistBreathe 22s ease-in-out infinite alternate; }
.hero-mistband-b { bottom: 4%; height: 30%; opacity: .18; z-index: 3; animation: mistBreathe 30s ease-in-out infinite alternate-reverse; }
@keyframes mistBreathe { from { opacity: .15; } to { opacity: .25; } }
#hero-canvas { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; display: block; }
.hero-vignette { z-index: 4; }
.hero-inner { z-index: 5; }
.hero-seal { z-index: 6; }
.scroll-hint { z-index: 6; }
.hero-vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(20, 28, 23, .2), transparent 30%, transparent 70%, rgba(20, 28, 23, .55));
}
.hero-inner {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: var(--paper); padding: 0 6vw;
}
.hero-eyebrow { font-size: .78rem; letter-spacing: .55em; color: var(--bronze-light); margin-bottom: 2rem; font-weight: 500; text-shadow: 0 2px 18px rgba(20, 28, 23, .8); }
.hero-title {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.1rem, 6.2vw, 4.6rem); letter-spacing: .1em;
  text-shadow: 0 4px 40px rgba(0, 0, 0, .4);
}
.hero-divider { display: flex; align-items: center; gap: 1rem; margin: 1.6rem 0 1.3rem; color: var(--bronze-light); }
.hero-divider span { display: block; width: clamp(60px, 10vw, 130px); height: 1px; background: linear-gradient(to right, transparent, var(--bronze-light)); }
.hero-divider span:last-child { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-divider i { font-style: normal; font-size: .8rem; opacity: .9; }
.hero-tagline { font-family: var(--font-serif); font-size: clamp(1.2rem, 2.6vw, 1.9rem); letter-spacing: .34em; color: var(--paper); margin-bottom: 1rem; text-shadow: 0 2px 22px rgba(20, 28, 23, .75); }
.hero-sub { font-size: clamp(.85rem, 1.4vw, 1rem); letter-spacing: .22em; color: rgba(233, 239, 230, .82); font-weight: 300; text-shadow: 0 2px 16px rgba(20, 28, 23, .7); }
body.lang-en .hero-tagline { letter-spacing: .12em; font-size: clamp(1.1rem, 2.2vw, 1.6rem); }
body.lang-en .hero-sub { letter-spacing: .1em; }

.hero-seal {
  position: absolute; z-index: 3; right: clamp(1.2rem, 5vw, 4.5rem); bottom: clamp(5.5rem, 14vh, 9rem);
  display: flex; flex-direction: column;
  border: 2px solid rgba(184, 69, 42, .9); border-radius: 10px; overflow: hidden;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .5);
  background: rgba(184, 69, 42, .9);
}
.hero-seal span {
  width: 46px; height: 46px; display: grid; place-items: center;
  color: var(--paper); font-family: var(--font-serif); font-weight: 900; font-size: 1.35rem;
}
.scroll-hint {
  position: absolute; z-index: 3; left: 50%; bottom: 2.2rem; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .7rem; color: rgba(233, 239, 230, .75);
}
.scroll-hint-text { font-size: .68rem; letter-spacing: .34em; }
.scroll-hint-line { width: 1px; height: 52px; background: rgba(233, 239, 230, .35); position: relative; overflow: hidden; }
.scroll-hint-line::after {
  content: ""; position: absolute; left: 0; top: -50%; width: 100%; height: 50%;
  background: var(--bronze-light); animation: scrollDrop 2.2s ease-in-out infinite;
}
@keyframes scrollDrop { 0% { top: -50%; } 60%, 100% { top: 110%; } }

/* ============================================================
   Screen 2 · About 关于我们
   ============================================================ */
.about { position: relative; padding: clamp(6rem, 12vh, 9rem) 0 clamp(5rem, 10vh, 8rem); background: var(--paper); overflow: hidden; }
.about-bg { position: absolute; inset: 0; pointer-events: none; }
.about-bg-img {
  position: absolute; inset: -8% -6% auto -6%; height: 118%;
  background: url('../assets/about-terraces.webp') center 30% / cover no-repeat;
  opacity: .34;
  -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
  mask-image: linear-gradient(to bottom, black 30%, transparent 88%);
}
.about-mist {
  position: absolute; left: -20%; width: 140%; height: 40%;
  background: radial-gradient(50% 60% at 50% 50%, rgba(247, 243, 232, .95), rgba(247, 243, 232, 0) 70%);
  filter: blur(10px);
}
.about-mist-a { top: -4%; }
.about-mist-b { top: 26%; opacity: .8; }
.about .container { position: relative; z-index: 2; }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin: 3rem 0 3.4rem; }
.value {
  background: rgba(255, 255, 255, .55);
  border: 1px solid rgba(47, 93, 80, .16);
  border-radius: 14px; padding: 1.8rem 1.6rem 1.6rem;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.value:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); }
.value-mark {
  display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1rem;
  border-radius: 10px; background: var(--pine); color: var(--paper);
  font-family: var(--font-serif); font-weight: 900; font-size: 1.3rem;
}
.value h3 { font-family: var(--font-serif); font-size: 1.15rem; color: var(--ink); margin-bottom: .5rem; letter-spacing: .1em; }
.value p { font-size: .88rem; color: var(--text-soft); }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  border-top: 1px solid rgba(47, 93, 80, .2); border-bottom: 1px solid rgba(47, 93, 80, .2);
  padding: 2.2rem 0; margin-bottom: 3rem;
}
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-serif); font-weight: 900; font-size: clamp(1.9rem, 3.4vw, 2.8rem); color: var(--pine); line-height: 1.1; }
.stat-num i { font-style: normal; }
.stat-num em { font-style: normal; font-size: .55em; color: var(--cinnabar); margin-left: .1em; }
.stat-label { font-size: .8rem; letter-spacing: .1em; color: var(--text-soft); }

.about-loc {
  display: flex; align-items: center; justify-content: center; gap: .7rem;
  color: var(--pine); font-size: .92rem; letter-spacing: .06em;
}
.about-loc-pin { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: rgba(47, 93, 80, .1); }

/* ============================================================
   Screen 3 · History 发展历程（长卷）
   ============================================================ */
.history { position: relative; background: var(--ink-2); color: var(--paper); }
.history-pin { padding: clamp(5rem, 10vh, 7rem) 0 4.5rem; min-height: 100vh; display: flex; flex-direction: column; background: var(--ink-2); position: relative; z-index: 3; }
html.gsap-on .history-pin { overflow: hidden; }
.history-head { margin-bottom: 1rem; }

.scroll-viewport { position: relative; flex: 1; display: flex; align-items: center; }
.scroll-track {
  display: flex; align-items: stretch; gap: clamp(1.6rem, 3vw, 3rem);
  padding: 3.2rem clamp(1.2rem, 6vw, 6rem) 3.6rem;
  width: max-content;
  background:
    radial-gradient(140% 100% at 0% 0%, rgba(183, 196, 186, .06), transparent 50%),
    linear-gradient(to bottom, #efe9d8, #e9e1cd);
  color: var(--text-dark);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
  border-top: 6px solid #d8cfb6; border-bottom: 6px solid #d8cfb6;
  position: relative;
}
.scroll-track::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");
}
html:not(.gsap-on) .scroll-track { flex-direction: column; width: auto; margin: 0 5vw; }

.hs-node {
  position: relative; flex: 0 0 auto; width: min(480px, 82vw);
  padding: 2rem 2rem 1.6rem; display: flex; flex-direction: column; gap: .7rem;
  border-left: 1px solid rgba(47, 93, 80, .25);
}
.hs-node:first-child { border-left: none; }
.hs-year {
  font-family: var(--font-serif); font-weight: 900; font-size: clamp(2.6rem, 5vw, 4rem);
  color: var(--pine); line-height: 1; letter-spacing: .02em;
}
.hs-key .hs-year { color: var(--cinnabar); }
.hs-node h3 { font-family: var(--font-serif); font-size: 1.25rem; color: var(--ink); letter-spacing: .04em; }
.hs-node p { font-size: .92rem; color: var(--text-soft); }
.hs-era { font-size: .8rem; letter-spacing: .3em; color: var(--bronze); font-weight: 500; }
.hs-note { font-size: 1.35rem; color: var(--cinnabar); transform: rotate(-2deg); margin-top: .4rem; }
.hs-year-seal {
  width: 64px; height: 64px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 10px;
  font-size: 1.05rem; letter-spacing: .05em; text-align: center; line-height: 1.25;
  transform: rotate(-4deg); box-shadow: 0 10px 24px -10px rgba(184, 69, 42, .6);
  padding: 6px;
}
.hs-year-seal.cinnabar { background: var(--cinnabar-deep); }
.hs-photo { margin-top: .8rem; border: 6px solid #fbf8ef; box-shadow: 0 14px 34px -14px rgba(29, 38, 32, .4); transform: rotate(-1.2deg); }
.hs-photo img { width: 100%; height: 210px; object-fit: cover; }
.hs-today { background: rgba(47, 93, 80, .06); border-radius: 0 16px 16px 0; }

.scroll-progress { margin: 2.4rem auto 0; width: min(420px, 70vw); height: 2px; background: rgba(233, 239, 230, .18); border-radius: 2px; overflow: hidden; }
.scroll-progress span { display: block; height: 100%; width: 0; background: var(--bronze-light); }

/* ============================================================
   Screen 4 · Business 主营产业
   ============================================================ */
.business { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper-warm); }
.biz-grid { display: flex; gap: 10px; height: min(76vh, 640px); min-height: 480px; padding: 0 clamp(1rem, 4vw, 3rem); }
.biz-card {
  position: relative; flex: 1; border-radius: 18px; overflow: hidden;
  cursor: pointer; isolation: isolate;
  transition: flex .8s var(--ease-out);
  box-shadow: 0 20px 50px -25px rgba(29, 38, 32, .5);
}
.biz-card:hover, .biz-card:focus-within { flex: 2.7; }
.biz-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.06); filter: saturate(.82) brightness(.86);
  transition: transform 1.1s var(--ease-out), filter .8s ease;
}
.biz-card:hover .biz-bg { transform: scale(1); filter: saturate(1) brightness(.96); }
.biz-card::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(20, 28, 23, .88) 0%, rgba(20, 28, 23, .35) 46%, rgba(20, 28, 23, .12) 100%);
  transition: background .6s ease;
}
.biz-sprout {
  position: absolute; z-index: 2; right: 8%; bottom: 34%; width: 60px; color: rgba(233, 239, 230, 0);
  transition: color .8s ease .1s;
}
.biz-card:hover .biz-sprout { color: rgba(233, 239, 230, .85); }
.biz-sprout svg { width: 100%; }
.sprout-stem, .sprout-leaf, .sprout-top { stroke-dasharray: 220; stroke-dashoffset: 220; transition: stroke-dashoffset 1.6s var(--ease-out) .15s; }
.biz-card:hover .sprout-stem, .biz-card:hover .sprout-leaf, .biz-card:hover .sprout-top { stroke-dashoffset: 0; }
.biz-content {
  position: absolute; z-index: 2; left: 0; right: 0; bottom: 0;
  padding: 1.8rem 1.7rem 1.6rem; color: var(--paper);
}
.biz-index {
  font-family: var(--font-en); font-size: .85rem; letter-spacing: .3em;
  color: var(--bronze-light); display: block; margin-bottom: .5rem;
}
.biz-card h3 { font-family: var(--font-serif); font-weight: 700; font-size: clamp(1.25rem, 2vw, 1.7rem); letter-spacing: .14em; margin-bottom: .3rem; white-space: nowrap; }
.biz-tag { font-size: .76rem; letter-spacing: .18em; color: rgba(233, 239, 230, .75); margin-bottom: .8rem; white-space: nowrap; }
.biz-desc {
  font-size: .88rem; color: rgba(233, 239, 230, .92); max-width: 34em;
  opacity: 0; transform: translateY(14px); transition: opacity .6s ease .18s, transform .6s var(--ease-out) .18s;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.biz-card:hover .biz-desc, .biz-card:focus-within .biz-desc { opacity: 1; transform: none; }

/* ============================================================
   Screen 5 · Network 产地与供应网络
   ============================================================ */
.network { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--ink); color: var(--paper); position: relative; overflow: hidden; }
.network::before {
  content: ""; position: absolute; inset: 0; opacity: .05; pointer-events: none;
  background-image:
    linear-gradient(to bottom, rgba(241,235,219,.45) 0%, rgba(241,235,219,0) 8%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}
.map-wrap { position: relative; width: min(1060px, 94vw); margin: 1rem auto 0; }
#china-map { width: 100%; height: auto; display: block; }
#china-outline {
  fill: rgba(143, 174, 152, .09); stroke: rgba(233, 239, 230, .55); stroke-width: 1.5;
  stroke-linejoin: round; stroke-linecap: round;
}
.inset-box { fill: rgba(29, 38, 32, .35); stroke: rgba(233, 239, 230, .4); stroke-width: 1.1; }
.dash-line { fill: none; stroke: rgba(233, 239, 230, .7); stroke-width: 2; stroke-linecap: round; }
.inset-label { fill: rgba(233, 239, 230, .65); font-size: 12px; font-family: var(--font-sans); letter-spacing: .15em; }
.map-route { fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-dasharray: 6 7; opacity: .75; }
.map-route.r1 { stroke: var(--cinnabar); }
.map-route.r2 { stroke: var(--bronze-light); }
.map-route.r3 { stroke: var(--sage); }
.marker { cursor: pointer; }
.marker-dot { transition: r .3s ease; }
.marker:hover .marker-dot, .marker.active .marker-dot { r: 9; }
.marker-ring { transform-box: fill-box; transform-origin: center; animation: ringPulse 2.6s ease-out infinite; }
@keyframes ringPulse { 0% { transform: scale(.4); opacity: .9; } 80%, 100% { transform: scale(2.1); opacity: 0; } }
.marker-label { fill: rgba(233, 239, 230, .85); font-size: 13px; font-family: var(--font-sans); letter-spacing: .08em; pointer-events: none; }
.map-tip {
  position: absolute; z-index: 5; min-width: 240px; max-width: 320px;
  background: rgba(247, 243, 232, .97); color: var(--text-dark);
  border-radius: 12px; padding: 1.1rem 1.25rem; box-shadow: 0 24px 60px -20px rgba(0, 0, 0, .6);
  border-top: 4px solid var(--cinnabar);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity .35s ease, transform .35s var(--ease-out);
}
.map-tip.show { opacity: 1; transform: none; pointer-events: auto; }
.map-tip h4 { font-family: var(--font-serif); font-size: 1.1rem; color: var(--ink); margin-bottom: .15rem; }
.map-tip .tip-role { font-size: .72rem; letter-spacing: .2em; color: var(--cinnabar); margin-bottom: .55rem; }
.map-tip p { font-size: .84rem; color: var(--text-soft); }
.map-tip p b { color: var(--pine); font-weight: 500; }
.map-legend {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.6rem; margin-top: 2.2rem;
  font-size: .82rem; color: rgba(233, 239, 230, .8);
}
.legend-item { display: flex; align-items: center; gap: .5rem; }
.legend-item b { font-weight: 500; letter-spacing: .08em; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-hq { background: var(--cinnabar); }
.dot-hub { background: var(--bronze-light); }
.dot-partner { background: var(--sage); }
.map-note { margin-left: auto; font-size: .74rem; opacity: .55; }

/* ============================================================
   Screen 6 · Quality 品质与加工
   ============================================================ */
.quality { padding: clamp(6rem, 12vh, 9rem) 0; background: var(--paper); }
.q-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-bottom: 4rem; }
.q-item {
  background: #fff; border: 1px solid rgba(47, 93, 80, .12); border-radius: 14px;
  padding: 1.7rem 1.6rem 1.5rem; transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.q-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.q-item svg { width: 40px; height: 40px; color: var(--pine); margin-bottom: .9rem; }
.q-item h3 { font-family: var(--font-serif); font-size: 1.08rem; letter-spacing: .1em; color: var(--ink); margin-bottom: .4rem; }
.q-item p { font-size: .86rem; color: var(--text-soft); }

.q-feature {
  display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(1.6rem, 4vw, 3.5rem);
  align-items: center;
  background: var(--pine); border-radius: 22px; padding: clamp(1.8rem, 4vw, 3.2rem);
  color: var(--paper); margin-bottom: 4rem;
  box-shadow: 0 30px 70px -30px rgba(47, 93, 80, .55);
}
.q-feature-kicker { font-size: .74rem; letter-spacing: .34em; color: var(--bronze-light); margin-bottom: .8rem; }
.q-feature h3 { font-family: var(--font-serif); font-size: clamp(1.4rem, 2.6vw, 2rem); letter-spacing: .06em; margin-bottom: 1rem; }
.q-feature-text > p { font-size: .94rem; color: rgba(233, 239, 230, .85); margin-bottom: 1.4rem; }
.q-feature-list { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.q-feature-list li { font-size: .88rem; padding-left: 1.3rem; position: relative; }
.q-feature-list li::before { content: ""; position: absolute; left: 0; top: .58em; width: 7px; height: 7px; border-radius: 50%; background: var(--bronze-light); }
.q-feature-media video {
  width: 100%; border-radius: 14px; display: block; background: #101815;
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, .6);
}
.q-video-cap { text-align: center; font-size: .78rem; letter-spacing: .2em; color: rgba(233, 239, 230, .65); margin-top: .8rem; }

.q-macros { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }

/* Quality statement banner with video bg */
.q-statement {
  position: relative; height: 340px; border-radius: 20px; overflow: hidden;
  margin-bottom: 4rem; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
}
.q-statement-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
}
.q-statement-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(20, 28, 23, .65), rgba(20, 28, 23, .35));
}
.q-statement-text {
  position: relative; z-index: 2; color: var(--paper);
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem); letter-spacing: .14em;
  text-align: center; text-shadow: 0 2px 30px rgba(0, 0, 0, .5);
}
.q-macros figure { position: relative; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-card); }
.q-macros img { width: 100%; height: 300px; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.q-macros figure:hover img { transform: scale(1.05); }
.q-macros figcaption {
  position: absolute; left: 1.2rem; bottom: 1rem; color: var(--paper);
  font-family: var(--font-serif); letter-spacing: .2em; font-size: .95rem;
  text-shadow: 0 2px 14px rgba(0, 0, 0, .6);
}

/* ============================================================
   Screen 7 · Contact 归于庭院
   ============================================================ */
.contact { position: relative; padding: clamp(7rem, 14vh, 10rem) 0 0; background: var(--ink-2); color: var(--paper); overflow: hidden; }
.contact-bg {
  position: absolute; inset: 0;
  background: url('../assets/contact-courtyard.webp') center 60% / cover no-repeat;
  opacity: .5;
}
.contact::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(241,235,219,.3) 0%, rgba(241,235,219,0) 9%),
    linear-gradient(to bottom, rgba(29, 38, 32, .88), rgba(29, 38, 32, .55) 45%, rgba(29, 38, 32, .9));
}
.bamboo-shadow {
  position: absolute; right: -40px; top: -30px; width: clamp(260px, 34vw, 480px);
  color: rgba(10, 16, 12, .55); filter: blur(7px); pointer-events: none;
  transform-origin: top right;
  animation: sway 9s ease-in-out infinite alternate;
}
@keyframes sway { from { transform: rotate(-1.6deg) translateX(-6px); } to { transform: rotate(1.8deg) translateX(8px); } }
.contact-inner { position: relative; z-index: 2; }
.contact-card {
  margin-top: 1rem; max-width: 640px;
  background: rgba(16, 22, 19, .58);
  border: 1px solid rgba(233, 239, 230, .18);
  border-radius: 18px; padding: 2.2rem 2.4rem;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
}
.contact-row {
  display: grid; grid-template-columns: 110px 1fr; gap: 1rem; align-items: baseline;
  padding: .9rem 0; border-bottom: 1px solid rgba(233, 239, 230, .12);
}
.contact-row:last-of-type { border-bottom: none; }
.contact-key { font-size: .76rem; letter-spacing: .26em; color: var(--bronze-light); }
.contact-val { font-family: var(--font-serif); font-size: 1.12rem; letter-spacing: .05em; }
.contact-phone { font-size: 1.5rem; letter-spacing: .1em; color: var(--bronze-light); }
.contact-actions { display: flex; gap: 1rem; margin-top: 1.8rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .85rem 2.1rem; border-radius: 999px; font-size: .92rem; letter-spacing: .16em;
  transition: transform .35s var(--ease-out), box-shadow .35s ease, background .35s ease, color .35s ease;
  border: 1px solid transparent;
}
.btn-solid { background: var(--cinnabar); color: var(--paper); box-shadow: 0 14px 34px -12px rgba(184, 69, 42, .6); }
.btn-solid:hover { transform: translateY(-3px); background: var(--cinnabar-deep); }
.btn-line { background: transparent; color: var(--paper); border-color: rgba(233, 239, 230, .5); }
.btn-line:hover { transform: translateY(-3px); border-color: var(--bronze-light); color: var(--bronze-light); }
.footer {
  position: relative; z-index: 2; margin-top: clamp(4rem, 9vh, 6rem);
  border-top: 1px solid rgba(233, 239, 230, .14);
  padding: 2rem clamp(1.2rem, 4vw, 3rem) 2.4rem;
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  font-size: .8rem; color: rgba(233, 239, 230, .6); text-align: center; flex-wrap: wrap;
}
.footer-seal {
  width: 30px; height: 30px; display: grid; place-items: center;
  background: var(--cinnabar); color: var(--paper); border-radius: 6px; font-size: .95rem;
}

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 2.4rem; z-index: 150;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--ink); color: var(--paper); border: 1px solid rgba(183, 196, 186, .5);
  padding: .7rem 1.5rem; border-radius: 999px; font-size: .85rem; letter-spacing: .1em;
  transition: opacity .4s ease, transform .4s var(--ease-out);
  box-shadow: 0 20px 50px -16px rgba(0, 0, 0, .5);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   Section Background Videos (Agnes AI generated)
   ============================================================ */
.section-bg-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0; pointer-events: none;
}
/* About section video: subtle, behind the existing bg layers */
.about .section-bg-video {
  opacity: .22;
}
.about .about-bg, .about .container { position: relative; z-index: 2; }

/* Network section video */
.network .section-bg-video {
  opacity: .18;
}
.network .container, .network .map-wrap, .network .map-legend { position: relative; z-index: 2; }

/* Quality section video */
.quality .section-bg-video {
  opacity: .12;
}
.quality .container { position: relative; z-index: 2; }

/* Contact section video */
.contact .section-bg-video {
  opacity: .35;
}
.contact .contact-bg, .contact .bamboo-shadow, .contact .container, .contact .footer { position: relative; z-index: 2; }

/* ============================================================
   Screen 7 · 实地影像 Field Films
   ============================================================ */
.media {
  padding: clamp(6rem, 12vh, 9rem) 0;
  background: var(--paper-warm);
  position: relative; overflow: hidden;
}
.media-feature {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 2rem;
  margin-top: 2rem; align-items: center;
}
.doc-video {
  width: 100%; aspect-ratio: 854 / 480; border-radius: 18px;
  background: #101613; box-shadow: var(--shadow-card); display: block;
}
.doc-copy { color: var(--ink); }
.doc-copy span { font-size: .72rem; letter-spacing: .14em; color: var(--cinnabar); font-weight: 600; }
.doc-copy h3 { font-family: var(--font-serif); font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 600; margin: .4rem 0 .6rem; letter-spacing: .04em; }
.doc-copy p { font-size: .92rem; color: var(--text-soft); line-height: 1.9; }
.doc-note { font-size: .74rem !important; color: var(--text-soft) !important; letter-spacing: .08em; margin-top: .9rem; padding-top: .9rem; border-top: 1px solid rgba(29, 38, 32, .14); }
.footage-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 2.2rem;
}
.footage-card {
  position: relative; border-radius: 16px; overflow: hidden;
  aspect-ratio: 427 / 320; cursor: pointer; isolation: isolate;
  box-shadow: var(--shadow-card);
}
.footage-card video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
  filter: saturate(.82) contrast(.98);
  transition: transform 1.2s var(--ease-out), filter .6s ease;
}
.footage-card:hover video { transform: scale(1.05); filter: saturate(1); }
.footage-card figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  display: flex; flex-direction: column; gap: .15rem;
  padding: 1.9rem .95rem .8rem;
  background: linear-gradient(to top, rgba(16, 22, 19, .82), transparent);
  color: var(--paper);
}
.footage-card figcaption b { font-family: var(--font-serif); font-size: .92rem; font-weight: 600; letter-spacing: .06em; }
.footage-card figcaption span { font-size: .64rem; letter-spacing: .12em; color: rgba(233, 239, 230, .66); }
.footage-play {
  position: absolute; right: .85rem; top: .85rem; z-index: 2;
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(16, 22, 19, .62); border: 1px solid rgba(233, 239, 230, .4);
  cursor: pointer;
  display: grid; place-items: center; transition: background .3s, transform .3s;
}
.footage-play i {
  width: 0; height: 0; margin-left: 2px;
  border-left: 10px solid var(--paper); border-top: 6.5px solid transparent; border-bottom: 6.5px solid transparent;
}
.footage-card:hover .footage-play { background: var(--cinnabar); transform: scale(1.08); }
.footage-card.playing .footage-play i {
  margin-left: 0; border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 9px solid var(--paper); border-bottom: none;
}
.media-note { margin-top: 1.6rem; font-size: .76rem; color: var(--text-soft); letter-spacing: .08em; }

/* ============================================================
   Section Transition Feather Zones
   Apple-keynote-style gradient blends between adjacent sections.
   ::after = top feather (blend into THIS section's bg from above)
   ::before = bottom feather (blend THIS section into the next)
   Dark→Light and Light→Dark transitions get a 120px soft gradient.
   ============================================================ */
section { position: relative; }

/* --- Top feathers: blend the PREVIOUS section's tone into this one --- */

/* About (light) receives dark hero from above */
.about::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.4) 50%, transparent 100%);
  opacity: .85;
}

/* History (dark) receives light about from above — feather the paper into ink */
.history::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper-warm) 0%, rgba(241,235,219,.3) 50%, transparent 100%);
}

/* Business (light) receives dark history from above */
.business::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink-2) 0%, rgba(35,47,39,.3) 50%, transparent 100%);
  opacity: .7;
}

/* Network (dark) receives light business from above - merged with noise texture */
/* The top feather is added to the existing .network::before below */

/* Quality (light) receives dark network from above */
.quality::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--ink) 0%, rgba(29,38,32,.3) 50%, transparent 100%);
  opacity: .6;
}

/* Media (light) receives light quality — subtle paper-tone blend */
.media::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, var(--paper) 0%, rgba(247,243,232,.3) 50%, transparent 100%);
}

/* Contact (dark) receives light media from above - merged with existing dark overlay below */
/* The top feather is added to the existing .contact::before below */

/* --- Bottom feathers: blend this section into the NEXT one --- */

/* Hero (dark) blends into light About below */
.hero::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 4; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(247,243,232,.3) 50%, var(--paper) 100%);
}

/* About (light) blends into dark History below */
.about::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(35,47,39,.3) 50%, var(--ink-2) 100%);
  opacity: .8;
}

/* Business (light) blends into dark Network below */
.business::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink) 100%);
  opacity: .7;
}

/* Quality (light) blends into light Media below — subtle */
.quality::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 100px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.2) 50%, var(--paper-warm) 100%);
}

/* Media (light) blends into dark Contact below */
.media::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(29,38,32,.3) 50%, var(--ink-2) 100%);
  opacity: .7;
}

/* History bottom blends into Business (light) below — handled by scroll-track edge */
.history::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  z-index: 3; pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, rgba(241,235,219,.25) 50%, var(--paper-warm) 100%);
}

/* --- Section entrance: fade/slide up on scroll (GSAP ScrollTrigger driven) --- */
.section-enter {
  opacity: 0; transform: translateY(40px);
  will-change: opacity, transform;
}
html.gsap-on .section-enter.gsap-revealed {
  opacity: 1; transform: none;
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .q-grid { grid-template-columns: repeat(2, 1fr); }
  .q-feature { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr 1fr; }
  .media-feature { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed; top: 0; right: 0; z-index: 99;
    flex-direction: column; gap: 1.6rem;
    background: rgba(29, 38, 32, .97); color: var(--paper);
    width: min(320px, 78vw); height: 100vh; padding: 6.5rem 2.4rem;
    transform: translateX(100%); transition: transform .5s var(--ease-out);
  }
  .nav-links.open { transform: none; }
  .nav-links a { font-size: 1.05rem; }
  .nav-burger { display: block; }
}

@media (max-width: 768px) {
  .values { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 1.8rem; }
  .biz-grid { flex-direction: column; height: auto; min-height: 0; }
  .biz-card { min-height: 300px; }
  .biz-card:hover { flex: 1; }
  .biz-desc { opacity: 1; transform: none; -webkit-line-clamp: unset; }
  .q-grid { grid-template-columns: 1fr; }
  .q-macros { grid-template-columns: 1fr; }
  .contact-row { grid-template-columns: 1fr; gap: .2rem; }
  .hero-seal { display: none; }
  .hs-photo img { height: 170px; }
  .map-note { margin-left: 0; }
  .media-grid { grid-template-columns: 1fr; }
  .press-card { min-height: 200px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-hint-line::after, .marker-ring, .bamboo-shadow { animation: none; }
  .biz-card, .biz-bg, .value, .q-item { transition: none; }
}

/* ============================================================
   Hero CTAs · 首屏行动按钮
   ============================================================ */
.hero-cta { display: flex; gap: .9rem; margin-top: 2.4rem; justify-content: center; flex-wrap: wrap; }
.hero-cta .btn { padding: .8rem 2rem; font-size: .82rem; letter-spacing: .18em; }

/* ============================================================
   Screen 4 · 主营品种 Herb Catalog
   ============================================================ */
.catalog { padding: clamp(6rem, 12vh, 9rem) 0 clamp(4rem, 8vh, 6rem); background: var(--paper); position: relative; overflow: hidden; }
.catalog-strip-wrap { position: relative; margin-top: 2.6rem; }
.catalog-strip-wrap::before, .catalog-strip-wrap::after {
  content: ""; position: absolute; top: 0; bottom: 0; z-index: 2; width: 7vw; pointer-events: none;
}
.catalog-strip-wrap::before { left: 0; background: linear-gradient(to right, var(--paper), transparent); }
.catalog-strip-wrap::after { right: 0; background: linear-gradient(to left, var(--paper), transparent); }
.catalog-strip {
  display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: .6rem clamp(1rem, 4vw, 3rem) 1.2rem;
  scrollbar-width: none; -ms-overflow-style: none; cursor: grab;
}
.catalog-strip::-webkit-scrollbar { display: none; }
.catalog-strip.dragging { cursor: grabbing; scroll-snap-type: none; }
.herb-card {
  flex: 0 0 clamp(240px, 22vw, 300px); scroll-snap-align: start;
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(47, 93, 80, .14);
  border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
  transition: transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
}
.herb-card:hover { transform: translateY(-6px); box-shadow: 0 26px 60px -20px rgba(29, 38, 32, .45); }
.herb-img { position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: var(--paper-deep); }
.herb-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 1.4s var(--ease-out); }
.herb-card:hover .herb-img img { transform: scale(1.06); }
.herb-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(16, 22, 19, .32), transparent 45%);
}
.herb-body { padding: 1.15rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.herb-body h3 {
  font-family: var(--font-serif); font-size: 1.18rem; font-weight: 700;
  color: var(--ink); letter-spacing: .08em;
  display: flex; align-items: baseline; gap: .55rem; flex-wrap: wrap;
}
.herb-body h3 em {
  font-family: var(--font-en); font-style: italic; font-weight: 500;
  font-size: .68rem; letter-spacing: .04em; color: var(--text-soft);
}
.herb-note { font-size: .8rem; color: var(--text-soft); margin: .45rem 0 .8rem; line-height: 1.7; }
.herb-body ul { list-style: none; display: flex; flex-direction: column; gap: .42rem; margin-top: auto; }
.herb-body li { display: flex; align-items: baseline; gap: .55rem; font-size: .78rem; color: var(--text-soft); }
.herb-body li b {
  font-family: var(--font-serif); font-size: 1.06rem; color: var(--pine);
  min-width: 2.6em; text-align: right; letter-spacing: .02em;
}
.herb-body li span { line-height: 1.55; }
.herb-season {
  align-self: flex-start; margin-top: .95rem;
  font-size: .66rem; letter-spacing: .16em; color: var(--cinnabar);
  border: 1px solid rgba(184, 69, 42, .35); border-radius: 999px;
  padding: .28rem .8rem;
}
.herb-more {
  flex-basis: clamp(220px, 18vw, 260px);
  background: linear-gradient(160deg, var(--pine) 0%, var(--ink-3) 100%);
  border: none; justify-content: center;
}
.herb-more h3 { color: var(--paper); font-size: 1.3rem; }
.herb-more .herb-note { color: rgba(233, 239, 230, .8); font-size: .82rem; line-height: 1.9; }
.herb-more .text-link { margin-top: 1rem; align-self: flex-start; }
.text-link {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .78rem; letter-spacing: .1em; font-weight: 600;
  transition: color .3s;
}
.catalog .text-link, .light-text .text-link { color: var(--cinnabar); }
.catalog .text-link:hover { color: var(--cinnabar-deep); }
.herb-more .text-link { color: var(--bronze-light); }
.herb-more .text-link:hover { color: var(--paper); }

@media (max-width: 900px) {
  .media-feature { grid-template-columns: 1fr; }
  .footage-grid { grid-template-columns: 1fr 1fr; }
  .herb-card, .herb-more { flex-basis: 74vw; }
  .catalog-strip-wrap::before, .catalog-strip-wrap::after { width: 4vw; }
}
@media (max-width: 560px) {
  .footage-grid { grid-template-columns: 1fr; }
  .footage-card { aspect-ratio: 854 / 480; }
  .hero-cta .btn { padding: .72rem 1.4rem; }
}

/* ============================================================
   视觉升级 · 宋版书与朱印  Aesthetic Pass
   ============================================================ */

/* —— 全局：纸张颗粒 + 选区 + 滚动条 —— */
::selection { background: rgba(184, 69, 42, .85); color: var(--paper); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper-warm); }
::-webkit-scrollbar-thumb { background: rgba(47, 93, 80, .35); border-radius: 5px; border: 2px solid var(--paper-warm); }
::-webkit-scrollbar-thumb:hover { background: var(--pine); }

/* —— 首屏：提亮 + 暖金晨光 + 更有层次的字 —— */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(183, 196, 186, .20), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(23, 33, 26, .30), transparent 60%);
  mix-blend-mode: screen;
}
.hero-title {
  font-size: clamp(2.3rem, 6.8vw, 5rem);
  text-shadow: 0 6px 60px rgba(10, 16, 12, .55), 0 1px 0 rgba(0, 0, 0, .25);
}
.hero-eyebrow { display: inline-flex; align-items: center; gap: 1rem; }
.hero-eyebrow::before, .hero-eyebrow::after {
  content: ""; width: clamp(28px, 6vw, 72px); height: 1px;
  background: linear-gradient(to right, transparent, var(--bronze-light));
}
.hero-eyebrow::after { background: linear-gradient(to left, transparent, var(--bronze-light)); }
.hero-tagline {
  background: linear-gradient(105deg, #f2ead8 15%, var(--bronze-light) 50%, #f2ead8 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-cta .btn-solid { box-shadow: 0 18px 44px -14px rgba(184, 69, 42, .75); }

/* 首屏右侧竖排诗句 */
.hero-verse {
  position: absolute; z-index: 6; right: clamp(4.6rem, 9vw, 8.2rem); top: 50%;
  transform: translateY(-54%);
  display: flex; flex-direction: column; gap: 1.3rem;
  writing-mode: vertical-rl; letter-spacing: .58em;
  font-family: var(--font-serif); font-size: 1.02rem; color: rgba(233, 239, 230, .8);
  text-shadow: 0 2px 18px rgba(10, 16, 12, .8);
  border-right: 1px solid rgba(183, 196, 186, .4); padding-right: 1.05rem;
}
.hero-verse span:last-child { color: var(--bronze-light); }
@media (max-width: 980px) { .hero-verse { display: none; } }

/* —— 章节标题：大字水印 + 标签章 —— */
.sec-title { position: relative; }
.sec-title[data-wm]::before {
  content: attr(data-wm);
  position: absolute; z-index: -1;
  top: -0.62em; left: -0.34em;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(6.5rem, 15vw, 13rem); line-height: 1;
  color: rgba(29, 38, 32, .055);
  pointer-events: none; user-select: none;
}
.sec-title.light[data-wm]::before { color: rgba(233, 239, 230, .075); }
.sec-title { z-index: 1; } /* ensure stacking above wm */
.container { position: relative; }
.sec-label { display: inline-flex; align-items: center; gap: .7rem; }
.sec-label::before {
  content: ""; width: 10px; height: 10px; border-radius: 3px;
  background: var(--cinnabar); box-shadow: 0 0 0 1px rgba(184, 69, 42, .35), inset 0 0 0 2px rgba(247, 243, 232, .35);
}
.sec-label.light::before { background: var(--bronze-light); box-shadow: 0 0 0 1px rgba(183, 196, 186, .4), inset 0 0 0 2px rgba(29, 38, 32, .3); }

/* —— 数据与卡片细节 —— */
.stat-num { background: linear-gradient(120deg, var(--pine) 30%, #3e7263 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.value-mark { box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .22), 0 10px 24px -12px rgba(47, 93, 80, .55); }
.herb-seal {
  position: absolute; z-index: 2; top: .8rem; right: .8rem;
  writing-mode: vertical-rl; letter-spacing: .3em;
  font-family: var(--font-serif); font-weight: 700; font-size: .72rem;
  color: #f7f3e8; background: rgba(184, 69, 42, .92);
  padding: .5rem .34rem .34rem; border-radius: 6px;
  box-shadow: 0 6px 18px -6px rgba(0, 0, 0, .45), inset 0 0 0 1px rgba(247, 243, 232, .3);
}
.herb-more { position: relative; overflow: hidden; }
.herb-more::before {
  content: "药"; position: absolute; right: -1.2rem; bottom: -2.4rem;
  font-family: var(--font-serif); font-weight: 900; font-size: 9rem; line-height: 1;
  color: rgba(233, 239, 230, .07); pointer-events: none;
}
.footage-card::before {
  content: attr(data-idx);
  position: absolute; z-index: 3; left: .85rem; top: .78rem;
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 6px; font-family: var(--font-serif); font-weight: 700; font-size: .82rem;
  color: var(--paper); background: rgba(16, 22, 19, .66);
  border: 1px solid rgba(183, 196, 186, .5);
  pointer-events: none;
}

/* —— 品质宣言字 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2ead8 20%, var(--bronze-light) 55%, #f2ead8 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 导航细节 —— */
.nav.on-dark.scrolled {
  background: rgba(20, 28, 23, .72);
  box-shadow: 0 1px 0 rgba(233, 239, 230, .1), 0 10px 40px -20px rgba(0, 0, 0, .5);
}
.nav-seal { transition: transform .6s var(--ease-out); }
.nav-brand:hover .nav-seal { transform: rotate(-8deg) scale(1.06); }

/* —— 按钮统一细节 —— */
.btn { position: relative; overflow: hidden; }
.btn-solid::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(247, 243, 232, .35), transparent);
  transform: skewX(-22deg); transition: left .7s var(--ease-out);
}
.btn-solid:hover::after { left: 130%; }

@media (prefers-reduced-motion: reduce) {
  .btn-solid::after { display: none; }
  .nav-seal { transition: none; }
}

/* ============================================================
   大改 2.0 · 沉浸式交互层  Immersive Layer
   ============================================================ */

/* —— 开屏：墨滴 + 印章 + 计数 —— */
.preloader { flex-direction: column; gap: 1.6rem; }
.preloader-seal { display: none; }
.pre-ink { position: relative; width: 120px; height: 120px; display: grid; place-items: center; }
.pre-blot {
  position: absolute; inset: 0; border-radius: 46% 54% 52% 48% / 55% 48% 52% 45%;
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .28), rgba(29, 38, 32, .92) 62%);
  transform: scale(0); animation: blot 1.5s var(--ease-out) .1s forwards;
  filter: blur(1px);
}
@keyframes blot {
  0% { transform: scale(0) rotate(-8deg); }
  62% { transform: scale(1.06) rotate(2deg); }
  100% { transform: scale(1) rotate(0deg); }
}
.pre-seal {
  position: relative; color: var(--paper); font-size: 3.2rem;
  opacity: 0; animation: sealIn .8s var(--ease-out) 1s forwards;
  text-shadow: 0 4px 24px rgba(0, 0, 0, .5);
}
@keyframes sealIn { from { opacity: 0; transform: scale(1.7); } to { opacity: 1; transform: scale(1); } }
.pre-count {
  position: absolute; right: clamp(1.2rem, 4vw, 3rem); bottom: clamp(1rem, 3vh, 2rem);
  font-family: var(--font-en); font-size: .95rem; letter-spacing: .3em; color: var(--bronze-light);
}

/* —— 首屏：墨池 + 描边大字 —— */
#ink-canvas { position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; display: block; pointer-events: none; }
.hero-outline {
  position: absolute; z-index: 1; left: 50%; top: 50%; transform: translate(-50%, -52%);
  display: flex; gap: 1.2em; pointer-events: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(11rem, 34vw, 30rem); line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(233, 239, 230, .13);
  user-select: none;
}
.hero-outline span { display: block; }
.hero-outline span:last-child { transform: translateY(.18em); }
@media (max-width: 980px) { .hero-outline { font-size: clamp(7rem, 30vw, 12rem); } }

/* —— 逐字动效 —— */
.hero-title .ch, .sec-title .ch { display: inline-block; }
.reveal .ch { opacity: 0; }
.reveal.on .ch {
  animation: chIn .9s var(--ease-out) var(--d, 0ms) both;
}
@keyframes chIn {
  from { opacity: 0; transform: translateY(.6em) rotate(4deg); filter: blur(10px); }
  to { opacity: 1; transform: none; filter: blur(0); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal .ch { opacity: 1; }
  .reveal.on .ch { animation: none; }
}

/* —— 动态字带 —— */
.marquee {
  position: relative; overflow: hidden; padding: 1.15rem 0;
  background: var(--ink); border-top: 1px solid rgba(183, 196, 186, .25); border-bottom: 1px solid rgba(183, 196, 186, .25);
}
.marquee-track {
  display: flex; width: max-content; gap: 3.2rem;
  animation: mq 46s linear infinite;
}
.marquee-track span {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.6rem); letter-spacing: .3em;
  color: var(--paper); white-space: nowrap;
}
.marquee-track span em { font-style: normal; font-size: .5em; color: var(--cinnabar); margin-left: 3.2rem; vertical-align: .35em; }
.marquee-track .hollow { color: transparent; -webkit-text-stroke: 1px rgba(183, 196, 186, .75); }
.marquee-track .hollow em { -webkit-text-stroke: 0; }
@keyframes mq { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }
.marquee-dark { background: var(--paper-deep); border-color: rgba(29, 38, 32, .12); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(184, 69, 42, .6); }
.marquee-dark .marquee-track span em { color: rgba(184, 69, 42, .8); }

/* —— 巨型 CTA（联系） —— */
.giant-cta {
  display: block; margin: 1.2rem 0 2.6rem; text-decoration: none;
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(2.6rem, 8.5vw, 7rem); line-height: 1.15; letter-spacing: .12em;
  color: transparent; -webkit-text-stroke: 1.5px rgba(233, 239, 230, .8);
  position: relative; overflow: hidden; width: fit-content;
  transition: color .5s var(--ease-out);
}
.giant-cta::after {
  content: "WALK THE SEASONS WITH US"; position: absolute; left: .1em; bottom: -1.1em;
  font-family: var(--font-en); font-weight: 600; font-style: italic;
  font-size: .16em; letter-spacing: .6em; color: rgba(183, 196, 186, .85);
  -webkit-text-stroke: 0; white-space: nowrap;
}
.giant-cta .giant-cta-t { position: relative; z-index: 1; }
.giant-cta::before {
  content: ""; position: absolute; z-index: 0; inset: 0;
  background: linear-gradient(100deg, var(--bronze-light), #e8d5a8);
  transform: translateX(-101%); transition: transform .7s var(--ease-out);
  -webkit-background-clip: text;
}
.giant-cta:hover, .giant-cta:focus-visible { color: var(--bronze-light); -webkit-text-stroke-color: transparent; }
.giant-cta:hover::before { transform: translateX(0); }

/* —— 滚动印章 —— */
.scroll-seal {
  position: fixed; right: 1.35rem; top: 50%; transform: translateY(-50%);
  z-index: 90; display: flex; flex-direction: column; align-items: center; gap: .8rem;
  pointer-events: none;
}
.scroll-seal > span {
  width: 34px; height: 34px; display: grid; place-items: center;
  background: rgba(184, 69, 42, .92); color: var(--paper);
  font-size: 1.05rem; border-radius: 8px;
  box-shadow: inset 0 0 0 1px rgba(247, 243, 232, .3), 0 8px 20px -8px rgba(0, 0, 0, .5);
}
.scroll-seal i {
  width: 1px; height: clamp(90px, 22vh, 190px);
  background: linear-gradient(to bottom, rgba(183, 196, 186, .8), rgba(183, 196, 186, .1));
  transform: scaleY(0); transform-origin: top;
}
@media (max-width: 980px) { .scroll-seal { display: none; } }

/* —— 墨点光标 —— */
@media (pointer: fine) {
  html.has-cursor, html.has-cursor body { cursor: none; }
  html.has-cursor a, html.has-cursor button, html.has-cursor video { cursor: none; }
}
.cursor-dot, .cursor-ring {
  position: fixed; left: 0; top: 0; z-index: 1000; pointer-events: none;
  opacity: 0; transition: opacity .3s;
}
.cursor-dot {
  width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px; border-radius: 50%;
  background: var(--cinnabar);
}
.cursor-ring {
  width: 40px; height: 40px; margin: -20px 0 0 -20px; border-radius: 50%;
  border: 1.5px solid rgba(183, 196, 186, .8);
  display: grid; place-items: center;
  transition: opacity .3s, width .35s var(--ease-out), height .35s var(--ease-out),
              margin .35s var(--ease-out), background .35s, border-color .35s;
}
.cursor-ring b {
  font-family: var(--font-serif); font-weight: 700; font-size: .82rem; color: var(--paper);
  opacity: 0; transform: scale(.5); transition: opacity .25s, transform .25s var(--ease-out);
}
.cursor-ring.on {
  width: 64px; height: 64px; margin: -32px 0 0 -32px;
  background: rgba(184, 69, 42, .92); border-color: transparent;
}
.cursor-ring.on b { opacity: 1; transform: scale(1); }
.cursor-ring.big {
  width: 76px; height: 76px; margin: -38px 0 0 -38px;
  border-color: var(--bronze-light);
}
.cursor-ring.press { transform-origin: center; }

/* —— 磁吸倾斜：高光跟随指针（biz 用 .biz-bg::after，herb 用卡片 ::after） —— */
.biz-card, .herb-card { transform-style: preserve-3d; will-change: transform; }
.biz-card.tilting, .herb-card.tilting { transition: none !important; }
.biz-bg::after, .herb-card::after {
  content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none; opacity: 0;
  border-radius: inherit;
  background: radial-gradient(340px circle at var(--gx, 50%) var(--gy, 50%), rgba(247, 243, 232, .17), transparent 65%);
  transition: opacity .4s;
}
.biz-card.tilting .biz-bg::after, .herb-card.tilting::after { opacity: 1; }

/* —— 品种条指针样式 —— */
.catalog-strip[data-cursor] { cursor: grab; }
.catalog-strip.dragging { cursor: grabbing !important; }

/* —— 交互细节补 —— */
.biz-card { transition: flex .8s var(--ease-out), transform .6s var(--ease-out); }
body.lang-en .giant-cta::after { display: none; }
body.lang-en .giant-cta { -webkit-text-stroke-color: rgba(233, 239, 230, .8); }
.cursor-ring.press { width: 30px; height: 30px; margin: -15px 0 0 -15px; }

/* ============================================================
   3.0 视觉系统重制 · 琥珀档案  Amber Archive
   诊断：旧版（米纸+衬线+赤陶）命中 AI 模板脸。重制为：
   药材琥珀/黄芩金主色 + 特粗黑体编辑排版 + 批号档案系统 + 硬对比。
   ============================================================ */

/* —— 令牌覆盖 —— */
:root {
  --paper: #faf8f2;
  --paper-warm: #f3f0e6;
  --paper-deep: #e9e4d2;
  --ink: #17150e;
  --ink-2: #221f15;
  --ink-3: #302b1d;
  --text-dark: #201d14;
  --text-soft: #55503f;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --cinnabar: #b8452a;   /* 仅保留印章语义 */
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* —— 排版：特粗黑体编辑系统 —— */
.hero-title, .sec-title {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: .015em;
}
.hero-title { font-size: clamp(2.4rem, 7.4vw, 5.6rem); }
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: var(--amber); }
body.lang-en .hero-title, body.lang-en .sec-title { font-family: var(--font-en); font-weight: 600; }
.sec-title { font-size: clamp(2rem, 4.6vw, 3.4rem); }
.sec-lead { color: var(--text-soft); font-size: 1.05rem; }

/* —— 章节标签：档案索引 —— */
.sec-label {
  color: var(--amber-deep);
  font-weight: 700; letter-spacing: .3em; font-size: .78rem;
  font-variant-numeric: tabular-nums;
}
.sec-label.light { color: var(--bronze-light); }
.sec-label::before { display: none; }
.sec-label::after {
  content: ""; width: clamp(40px, 7vw, 90px); height: 1px;
  background: currentColor; opacity: .5; margin-left: .4rem;
}

/* —— 大字水印 → 巨型轮廓数字 —— */
.sec-title[data-wm]::before {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(9rem, 22vw, 19rem);
  top: -0.5em; left: -0.18em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(23, 21, 14, .1);
}
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 226, 204, .14); color: transparent; }

/* —— 首屏重排：干净 + 大字 + 琥珀 —— */
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(183, 196, 186, .22), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(15, 13, 8, .38), transparent 60%);
}
.hero-eyebrow { color: var(--bronze-light); letter-spacing: .5em; }
.hero-tagline {
  background: linear-gradient(100deg, #f5efdd 20%, var(--bronze-light) 55%, #f5efdd 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-family: var(--font-display); font-weight: 700; letter-spacing: .3em;
}
.hero-sub { color: rgba(238, 233, 216, .92); font-weight: 400; letter-spacing: .28em; }
.hero-cta .btn-solid {
  background: var(--ink); color: #f2edda;
  box-shadow: 0 18px 44px -14px rgba(0, 0, 0, .65);
}
.hero-cta .btn-solid:hover { background: var(--amber-deep); }
.hero-cta .btn-line { border-color: rgba(233, 226, 204, .45); color: #f2edda; }
.hero-cta .btn-line:hover { border-color: var(--bronze-light); color: var(--bronze-light); }

/* —— 字带：墨底珀金 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .35); }
.marquee-track span { color: #f2edda; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .8); color: transparent; }
.marquee-track span em { color: var(--amber); }
.marquee-dark { background: var(--paper-deep); }
.marquee-dark .marquee-track span { color: var(--ink); }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(111, 125, 114, .7); }

/* —— 巨型 CTA —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 233, 216, .85); font-family: var(--font-display); letter-spacing: .06em; }
.giant-cta::before { background: linear-gradient(100deg, var(--amber), #e8c56a); }
.giant-cta:hover, .giant-cta:focus-visible { color: var(--amber); }

/* —— 数据与卡片 —— */
.stat-num { background: linear-gradient(120deg, var(--ink) 30%, #4a3f22 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: var(--amber-deep); }
.value-mark { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(242, 237, 218, .2); }
.value { border-color: rgba(23, 21, 14, .12); }
.value:hover { box-shadow: 0 24px 60px -24px rgba(23, 21, 14, .3); }

/* —— 品种卡：标本批号 —— */
.herb-lot {
  display: block; margin: .3rem 0 .5rem;
  font-size: .62rem; letter-spacing: .14em; color: var(--amber-deep);
  font-variant-numeric: tabular-nums; font-weight: 500;
  padding-bottom: .5rem; border-bottom: 1px dashed rgba(111, 125, 114, .3);
}
.herb-body h3 { letter-spacing: .04em; }
.herb-season { color: var(--amber-deep); border-color: rgba(111, 125, 114, .4); }
.herb-more { background: linear-gradient(165deg, #262216, #17150e); }
.herb-more::before { color: rgba(183, 196, 186, .08); }

/* —— 品质宣言 / 图表 —— */
.q-statement-text {
  background: linear-gradient(100deg, #f2edda 20%, var(--amber) 55%, #f2edda 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hs-year { color: var(--ink); }
.hs-node .hs-note { color: var(--amber-deep); }

/* —— 印章体系：朱砂仅限印 —— */
.scroll-seal > span { background: var(--ink); box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0,0,0,.5); }
.scroll-seal i { background: linear-gradient(to bottom, var(--amber), rgba(183, 196, 186, .08)); }

/* —— 光标：琥珀 —— */
.cursor-dot { background: var(--amber); }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: var(--amber); }
.cursor-ring.on { background: var(--ink); }
.cursor-ring.on b { color: var(--amber); }

/* —— 导航 / 滚动条 —— */
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: var(--amber-deep); }
.nav.on-dark.scrolled { background: rgba(20, 18, 12, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .16); }
.nav-links a.active { color: var(--amber); }

/* —— 按钮扫光保留，实底换墨色 —— */
.btn-solid { background: var(--ink); }
.btn-solid:hover { background: var(--amber-deep); }

/* —— 地图图例 —— */
.dot-hub { background: var(--amber) !important; }
.dot-partner { background: #8a7b54 !important; }

/* —— 开屏：墨滴换琥珀晕 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .5), rgba(23, 21, 14, .95) 62%);
}
.pre-count { color: var(--amber); }

/* —— 3.0 补：旧松绿系令牌收敛为乌木/橄榄金 —— */
:root {
  --pine: #33401f;
  --pine-bright: #5b6c33;
  --sage: #a3945f;
}
#china-outline { fill: rgba(183, 196, 186, .07); stroke: rgba(236, 229, 206, .5); }
.inset-box { fill: rgba(23, 21, 14, .35); }

/* ============================================================
   手机端专项优化 Mobile Pass
   ============================================================ */
@media (max-width: 760px) {
  /* 首屏：更大字号、收紧留白、CTA 满宽 */
  .hero-inner { padding: 0 7vw; }
  .hero-title { font-size: clamp(1.75rem, 8.6vw, 2.6rem); letter-spacing: .02em; line-height: 1.28; }
  .hero-tagline { font-size: clamp(1.05rem, 4.6vw, 1.4rem); letter-spacing: .22em; }
  .hero-sub { font-size: .8rem; letter-spacing: .12em; line-height: 1.9; }
  .hero-eyebrow { letter-spacing: .34em; margin-bottom: 1.4rem; }
  .hero-cta { margin-top: 1.9rem; gap: .7rem; }
  .hero-cta .btn { width: min(320px, 78vw); justify-content: center; }
  .hero-seal { transform: scale(.82); transform-origin: bottom right; }
  .scroll-hint { bottom: 1.4rem; }

  /* 章节头：字号与水印收敛 */
  .sec-title { font-size: clamp(1.55rem, 6.4vw, 2.1rem); }
  .sec-title[data-wm]::before { font-size: clamp(5.6rem, 26vw, 8rem); top: -0.55em; left: -0.1em; }
  .sec-lead { font-size: .95rem; line-height: 2; }
  .sec-label { letter-spacing: .2em; font-size: .7rem; }

  /* 品种卡与标签 */
  .herb-card, .herb-more { flex-basis: 76vw; }
  .herb-lot { font-size: .58rem; letter-spacing: .1em; }
  .herb-body h3 { font-size: 1.08rem; }

  /* 数据/数值 */
  .stats { row-gap: 1.5rem; }
  .stat-num { font-size: clamp(1.6rem, 7vw, 2.2rem); }

  /* 巨型 CTA */
  .giant-cta { font-size: clamp(1.9rem, 10.5vw, 3rem); letter-spacing: .08em; }
  .giant-cta::after { font-size: .14em; letter-spacing: .4em; }

  /* 字带 */
  .marquee-track span { font-size: 1.15rem; letter-spacing: .22em; }

  /* 纪录片与实拍卡说明 */
  .doc-copy p { line-height: 2; }
  .footage-card figcaption b { font-size: .84rem; }

  /* 联系卡 */
  .contact-card { padding: 1.4rem 1.2rem; }

  /* 开屏 */
  .pre-ink { width: 96px; height: 96px; }
  .pre-seal { font-size: 2.6rem; }
}
@media (max-width: 400px) {
  .hero-title { font-size: 1.62rem; }
  .hero-cta .btn { width: 86vw; }
}

/* —— 性能：低可见度背景视频改静态图（免解码） —— */
.section-bg-img {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  pointer-events: none;
}
.network-bg-img { opacity: .18; background-image: url('../assets/clip-network-poster.jpg'); }
.quality-bg-img { opacity: .12; background-image: url('../assets/clip-quality-poster.jpg'); }

/* —— 修复：发展历程移动端白屏（轨道无裁剪溢出，v4 起遗留） —— */
@media (max-width: 768px) {
  .history-pin { min-height: 0; padding: clamp(4rem, 9vh, 6rem) 0 3rem; }
  .scroll-viewport {
    overflow-x: auto; overflow-y: hidden;
    scrollbar-width: none; -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  .scroll-viewport::-webkit-scrollbar { display: none; }
  .scroll-track { padding: 1.4rem 1.3rem 1.8rem; gap: 1.2rem; }
  .hs-node { width: 78vw; scroll-snap-align: center; padding: 1.6rem 1.4rem 1.4rem; }
  .scroll-progress { display: none; }
}

/* —— 主营产业实拍角标 —— */
.biz-real-tag {
  position: absolute; z-index: 3; top: .9rem; right: .9rem;
  writing-mode: vertical-rl; letter-spacing: .28em;
  font-family: var(--font-serif); font-weight: 700; font-size: .7rem;
  color: #f2edda; background: rgba(23, 21, 14, .68);
  border: 1px solid rgba(183, 196, 186, .55);
  padding: .5rem .32rem .34rem; border-radius: 6px;
}

/* —— 客户信任句 —— */
.clients-note {
  margin-top: 2.2rem; font-size: .8rem; letter-spacing: .06em;
  color: var(--text-soft); text-align: center;
}

/* ============================================================
   4.0 · 黛山月色 Moonlit Pine —— 去金改冷，收敛金属感
   炭墨绿主导 + 月银灰点缀 + 朱砂仅存印章；文字渐变改象牙白。
   ============================================================ */
:root {
  --paper: #f7f6f0;
  --paper-warm: #f0efe7;
  --paper-deep: #e5e4d8;
  --ink: #121a17;
  --ink-2: #17211d;
  --ink-3: #1f2b26;
  --text-dark: #1b211e;
  --text-soft: #4d564f;
  --pine: #2e4a3e;
  --pine-bright: #47685a;
  --sage: #9db3a6;
  --bronze: #6f7d72;
  --bronze-light: #b7c4ba;
  --amber: #b7c4ba;
  --amber-deep: #6f7d72;
}

/* —— 首屏 —— */
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: #ccd8cf; }
.hero-eyebrow { color: #c3cfc6; }
.hero-tagline {
  background: linear-gradient(100deg, #f4f6f1 20%, #ccd8cf 55%, #f4f6f1 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: rgba(240, 242, 236, .92); }
.hero::before {
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(190, 205, 196, .16), transparent 55%),
    radial-gradient(90% 70% at 85% 90%, rgba(8, 12, 10, .42), transparent 60%);
}
.hero-cta .btn-solid {
  background: #eef1ea; color: #121a17;
  box-shadow: 0 18px 44px -16px rgba(0, 0, 0, .55);
}
.hero-cta .btn-solid:hover { background: #ffffff; color: #121a17; }
.hero-cta .btn-line { border-color: rgba(233, 238, 233, .4); color: #eef1ea; }
.hero-cta .btn-line:hover { border-color: #b7c4ba; color: #ccd8cf; }
.btn-solid { background: #eef1ea; color: #121a17; }
.btn-solid:hover { background: #ffffff; }
.btn-solid::after {
  background: linear-gradient(100deg, transparent, rgba(18, 26, 23, .12), transparent);
}

/* —— 章节体系 —— */
.sec-label { color: #5c6f63; }
.sec-label.light { color: #b7c4ba; }
.sec-title[data-wm]::before { -webkit-text-stroke: 1.5px rgba(18, 26, 23, .1); }
.sec-title.light[data-wm]::before { -webkit-text-stroke: 1.5px rgba(233, 236, 229, .13); }

/* —— 字带 —— */
.marquee { background: var(--ink); border-color: rgba(183, 196, 186, .22); }
.marquee-track span { color: #eef0ea; }
.marquee-track .hollow { -webkit-text-stroke: 1px rgba(183, 196, 186, .75); color: transparent; }
.marquee-track span em { color: var(--cinnabar); }
.marquee-dark .marquee-track span em { color: #8a4530; }
.marquee-dark .marquee-track .hollow { -webkit-text-stroke: 1px rgba(46, 74, 62, .75); }

/* —— 巨型 CTA / 宣言 —— */
.giant-cta { -webkit-text-stroke: 1.5px rgba(238, 240, 234, .85); }
.giant-cta::before { background: linear-gradient(100deg, #eef0ea, #ffffff); }
.giant-cta:hover, .giant-cta:focus-visible { color: #f2f4ee; }
.q-statement-text {
  background: linear-gradient(100deg, #eef0ea 20%, #b7c4ba 55%, #eef0ea 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* —— 数据/卡片细节 —— */
.stat-num { background: linear-gradient(120deg, #1b211e 30%, #3d4a42 75%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num em { color: #6f7d72; }
.herb-lot { color: #5c6f63; border-bottom-color: rgba(111, 125, 114, .32); }
.herb-season { color: #54685b; border-color: rgba(84, 104, 91, .42); }
.herb-more { background: linear-gradient(165deg, #1a2621, #121a17); }
.herb-more::before { color: rgba(183, 196, 186, .07); }
.hs-node .hs-note { color: #54685b; }

/* —— 印章/光标/滚动条 —— */
.scroll-seal > span { background: #121a17; box-shadow: inset 0 0 0 1px rgba(183, 196, 186, .4), 0 8px 20px -8px rgba(0, 0, 0, .5); }
.scroll-seal i { background: linear-gradient(to bottom, #b7c4ba, rgba(183, 196, 186, .08)); }
.cursor-dot { background: #e8ebe4; }
.cursor-ring { border-color: rgba(183, 196, 186, .85); }
.cursor-ring.big { border-color: #b7c4ba; }
.cursor-ring.on { background: #121a17; }
.cursor-ring.on b { color: #ccd8cf; }
::-webkit-scrollbar-thumb { background: rgba(111, 125, 114, .4); }
::-webkit-scrollbar-thumb:hover { background: #6f7d72; }
.nav.on-dark.scrolled { background: rgba(14, 20, 17, .74); box-shadow: 0 1px 0 rgba(183, 196, 186, .14); }

/* —— 地图 / 实拍 —— */
#china-outline { fill: rgba(183, 196, 186, .06); stroke: rgba(233, 238, 233, .5); }
.footage-card::before { border-color: rgba(183, 196, 186, .5); }

/* —— 开屏 —— */
.pre-blot {
  background: radial-gradient(circle at 42% 38%, rgba(183, 196, 186, .35), rgba(18, 26, 23, .95) 62%);
}
.pre-count { color: #b7c4ba; }

/* —— 品种卡印章/尾卡链接 —— */
.herb-seal { background: rgba(184, 69, 42, .92); }
.herb-more .text-link { color: #b7c4ba; }
.herb-more .text-link:hover { color: #eef0ea; }

/* ============================================================
   8.0 · 获奖语法  Award Grammar
   混合模式光标 / 编辑排版不对称 / 更克制的高级细节
   ============================================================ */

/* —— 光标：difference 反色，更小更利落 —— */
.cursor-dot {
  width: 6px; height: 6px; margin: -3px 0 0 -3px; background: #f2f4ee;
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .45);
}
.cursor-ring {
  width: 34px; height: 34px; margin: -17px 0 0 -17px;
  border: 1px solid rgba(230, 236, 230, .9);
  box-shadow: 0 0 0 1px rgba(18, 26, 23, .18);
}
.cursor-ring.on { width: 62px; height: 62px; margin: -31px 0 0 -31px; background: rgba(18, 26, 23, .88); border-color: transparent; }
.cursor-ring.on b { color: #fff; }
.cursor-ring.big { width: 64px; height: 64px; margin: -32px 0 0 -32px; }
.cursor-ring.press { width: 26px; height: 26px; margin: -13px 0 0 -13px; }

/* —— 磁吸按钮过渡 —— */
.btn, .nav-links a, .footage-play, .lang-toggle { transition: transform .45s cubic-bezier(.22, .8, .32, 1), background .35s, color .35s, border-color .35s, box-shadow .35s; will-change: transform; }
.nav-links a { display: inline-block; }

/* —— 品种目录：编辑排版不对称（错落 + 巨型序号压图） —— */
.herb-card { flex: 0 0 clamp(250px, 23vw, 320px); }
.herb-card:nth-child(odd) { margin-top: 1.9rem; }
.herb-card:nth-child(3n) { margin-top: 3.4rem; }
.herb-card:first-child { flex-basis: clamp(280px, 26vw, 360px); }
.herb-num {
  position: absolute; z-index: 2; left: .9rem; top: .55rem;
  font-family: var(--font-display); font-weight: 900; font-size: 3.2rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(247, 246, 240, .9);
  text-shadow: 0 6px 30px rgba(0, 0, 0, .35);
  pointer-events: none; user-select: none;
  transition: transform .6s var(--ease-out);
}
.herb-card:hover .herb-num { transform: translateY(4px) scale(1.04); }
.herb-card .herb-lot { font-size: .58rem; }

/* —— 实拍卡：入场上斜切揭示 —— */
.footage-card { clip-path: inset(6% 4% 6% 4% round 16px); transition: clip-path .8s var(--ease-out); }
.footage-card:hover, .footage-card.playing { clip-path: inset(0 0 0 0 round 16px); }

/* —— 首屏标题：字距收紧、更利落 —— */
.hero-title { letter-spacing: .01em; }

/* —— 大水印更贴边（裁切感） —— */
.sec-title[data-wm]::before { left: -0.3em; }

/* —— 品质宣言字号提级 —— */
.q-statement-text { font-size: clamp(1.8rem, 4.6vw, 3.4rem); }

/* —— 导航：字距与悬停下划线 —— */
.nav-links a { position: relative; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -4px; height: 1px;
  background: currentColor; transition: right .4s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }

@media (max-width: 760px) {
  .herb-card:nth-child(odd), .herb-card:nth-child(3n) { margin-top: 0; }
  .herb-num { font-size: 2.4rem; }
}

/* —— 品种条 3D 扇形（JS 注入 --fan 变量；与悬停位移复合） —— */
@media (pointer: fine) {
  .catalog-strip { perspective: 1200px; }
  .catalog-strip .herb-card.reveal.on { transform: var(--fan, none); }
}

/* ============================================================
   11.0 · 骨架升级：全屏菜单 / 非对称首屏 / 帘幕开屏
   ============================================================ */

/* —— Lenis —— */
html.lenis-on, html.lenis-on body { scroll-behavior: auto; }
html.lenis-on.lenis-smooth { scroll-behavior: auto !important; }

/* —— 全屏菜单 —— */
.menu-overlay {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(14, 20, 17, .985);
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition: clip-path .65s cubic-bezier(.77, 0, .18, 1), visibility 0s .65s;
}
.menu-overlay.open { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path .65s cubic-bezier(.77, 0, .18, 1); }
.menu-inner {
  height: 100%; display: grid; grid-template-columns: 1.6fr 1fr;
  align-items: center; padding: clamp(5rem, 10vh, 7rem) clamp(1.4rem, 6vw, 6rem) clamp(2.4rem, 6vh, 4rem);
  max-width: 1280px; margin: 0 auto; gap: 3rem;
}
.menu-index { display: flex; flex-direction: column; }
.menu-index a {
  display: flex; align-items: baseline; gap: 1.3rem;
  padding: .34em 0; text-decoration: none;
  border-bottom: 1px solid rgba(183, 196, 186, .14);
  transform: translateY(26px); opacity: 0;
  transition: transform .6s var(--ease-out), opacity .6s;
}
.menu-overlay.open .menu-index a { transform: none; opacity: 1; }
.menu-overlay.open .menu-index a:nth-child(1) { transition-delay: .12s; }
.menu-overlay.open .menu-index a:nth-child(2) { transition-delay: .16s; }
.menu-overlay.open .menu-index a:nth-child(3) { transition-delay: .2s; }
.menu-overlay.open .menu-index a:nth-child(4) { transition-delay: .24s; }
.menu-overlay.open .menu-index a:nth-child(5) { transition-delay: .28s; }
.menu-overlay.open .menu-index a:nth-child(6) { transition-delay: .32s; }
.menu-overlay.open .menu-index a:nth-child(7) { transition-delay: .36s; }
.menu-overlay.open .menu-index a:nth-child(8) { transition-delay: .4s; }
.menu-index a i {
  font-family: var(--font-en); font-style: normal; font-size: .8rem;
  color: #6f7d72; letter-spacing: .1em; font-variant-numeric: tabular-nums;
  transition: color .3s;
}
.menu-index a span {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(1.7rem, 4.6vh, 2.7rem); letter-spacing: .06em; color: #eef0ea;
  transition: color .3s, transform .45s var(--ease-out);
}
.menu-index a:hover span, .menu-index a.active span { color: transparent; -webkit-text-stroke: 1px #ccd8cf; transform: translateX(10px); }
.menu-index a:hover i { color: #ccd8cf; }
.menu-side { display: flex; flex-direction: column; gap: 1.1rem; align-items: flex-start; }
.menu-brand { font-size: 2.2rem; color: #eef0ea; letter-spacing: .18em; }
.menu-coord { font-size: .78rem; color: #8b978e; letter-spacing: .18em; line-height: 2; }
.menu-tel {
  font-family: var(--font-en); font-size: 1.5rem; color: #ccd8cf; text-decoration: none;
  border-bottom: 1px solid rgba(183, 196, 186, .4); padding-bottom: .2rem;
}
.menu-tel:hover { color: #fff; }
.menu-note { font-size: .72rem; color: #6f7d72; letter-spacing: .14em; }
@media (max-width: 760px) {
  .menu-inner { grid-template-columns: 1fr; align-items: start; padding-top: 6rem; overflow-y: auto; }
  .menu-index a span { font-size: 1.45rem; }
  .menu-side { display: none; }
}

/* —— 菜单钮（两线，展开为 ×） —— */
.nav-burger span { display: block; width: 24px; height: 2px; background: currentColor; margin: 5px 0; transition: transform .4s var(--ease-out), opacity .3s; }
.nav-burger.open span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* —— 首屏非对称编辑排版 —— */
.hero-inner {
  align-items: flex-start; justify-content: flex-end;
  text-align: left; padding: 0 clamp(1.4rem, 6vw, 6rem) clamp(4.5rem, 12vh, 7.5rem);
}
.hero-eyebrow { margin-bottom: 1.1rem; }
.hero-title {
  display: flex; flex-direction: column; align-items: flex-start;
  font-size: clamp(3rem, 9.6vw, 8.2rem); line-height: 1.04; letter-spacing: .015em;
}
.hero-line { display: block; }
.hero-line-2 { color: transparent; -webkit-text-stroke: 1.5px rgba(238, 240, 234, .85); }
.hero-line-2 .ch { -webkit-text-stroke: inherit; }
.hero-title .ch:nth-child(n+3):nth-child(-n+5) { color: #ccd8cf; -webkit-text-stroke: 0; }
.hero-row {
  display: flex; align-items: baseline; gap: 1.6rem; flex-wrap: wrap;
  margin-top: 1.6rem; padding-top: 1.2rem;
  border-top: 1px solid rgba(183, 196, 186, .28);
}
.hero-row .hero-tagline { margin: 0; font-size: clamp(1rem, 2.2vw, 1.5rem); }
.hero-row .hero-sub { margin: 0; font-size: .82rem; max-width: 34em; letter-spacing: .1em; }
.hero-cta { justify-content: flex-start; margin-top: 1.8rem; }
.hero-divider { display: none; }
.hero-coord {
  position: absolute; z-index: 6; right: clamp(1.1rem, 3vw, 2.4rem); top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 1.4rem;
  writing-mode: vertical-rl; font-family: var(--font-en);
  font-size: .66rem; letter-spacing: .42em; color: rgba(205, 216, 207, .55);
  border-left: 1px solid rgba(183, 196, 186, .25); padding-left: 1rem;
}
@media (max-width: 980px) {
  .hero-coord { display: none; }
  .hero-title { font-size: clamp(2.5rem, 12vw, 4.2rem); }
  .hero-inner { padding-bottom: 5.5rem; }
}

/* —— 开屏帘幕 —— */
.preloader { transition: none; }
.preloader.done .pre-ink, .preloader.done .preloader-text, .preloader.done .pre-count {
  opacity: 0; transition: opacity .35s ease;
}
.preloader.done {
  opacity: 1;
  animation: curtain .8s cubic-bezier(.77, 0, .18, 1) .25s forwards;
  visibility: visible;
}
@keyframes curtain {
  to { clip-path: inset(0 0 100% 0); visibility: hidden; }
}
@media (prefers-reduced-motion: reduce) {
  .preloader.done { animation: none; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
}

/* ============================================================
   12.0 · 章节过场 / 供应路线 / 页脚巨字 / 显影特写
   ============================================================ */

/* —— 过场屏 —— */
.interlude {
  position: relative; min-height: 72vh;
  display: grid; place-items: center; overflow: hidden;
  background: var(--paper); padding: 4rem 0;
}
.interlude-flip { background: var(--paper-deep); }
.interlude-ghost {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(9rem, 26vw, 24rem); line-height: 1; white-space: nowrap;
  color: transparent; -webkit-text-stroke: 1.5px rgba(18, 26, 23, .09);
  user-select: none; pointer-events: none;
}
.interlude-main { position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 1.4rem; }
.interlude-main p {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2.4rem, 7vw, 5rem); letter-spacing: .3em; text-indent: .3em;
  color: var(--ink);
}
.interlude-rule { width: clamp(60px, 12vw, 140px); height: 1px; background: rgba(18, 26, 23, .25); }
.interlude-main em { font-family: var(--font-en); font-style: italic; font-size: .95rem; color: #6f7d72; letter-spacing: .08em; }
body.lang-en .interlude-main em { font-style: normal; }
@media (prefers-reduced-motion: reduce) { .interlude-ghost { display: none; } }

/* —— 供应路线（贯穿全页，桌面） —— */
.route-line {
  position: absolute; top: 0; left: 0; width: 120px; height: 100%;
  z-index: 1; pointer-events: none; display: none; overflow: visible;
}
@media (min-width: 981px) { .route-line { display: block; } }
#route-dots circle { fill: var(--paper); stroke: #6f7d72; stroke-width: 1.2; }
#route-dots circle.lit { fill: #b8452a; stroke: #b8452a; }
#route-dots text { font-size: 9px; fill: #6f7d72; letter-spacing: .1em; font-family: var(--font-en); }

/* —— 页脚巨字 —— */
.footer {
  padding: clamp(3rem, 8vh, 5rem) clamp(1.2rem, 4vw, 3rem) 2rem;
  display: flex; flex-direction: column; align-items: center; gap: 2.2rem;
  position: relative; z-index: 2;
}
.footer-seal { display: none; }
.footer-mark {
  font-size: clamp(4.5rem, 16vw, 13rem); line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(238, 240, 234, .55);
  letter-spacing: .12em; user-select: none;
}
.footer-row {
  width: 100%; max-width: 1100px;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  border-top: 1px solid rgba(183, 196, 186, .2); padding-top: 1.6rem;
}
.footer-row p { font-size: .72rem; letter-spacing: .12em; color: rgba(205, 216, 207, .6); }
.back-top {
  background: none; border: 1px solid rgba(183, 196, 186, .35); color: #ccd8cf;
  font-size: .68rem; letter-spacing: .22em; padding: .7rem 1.3rem; border-radius: 999px;
  cursor: pointer; transition: border-color .3s, color .3s, transform .3s var(--ease-out);
}
.back-top:hover { border-color: #ccd8cf; color: #fff; transform: translateY(-3px); }

/* —— 特写图显影（黑白 → 彩色） —— */
.q-macros img { filter: grayscale(.85) contrast(1.03); transition: filter .8s ease, transform 1.2s var(--ease-out); }
.q-macros figure:hover img { filter: grayscale(0); }
@media (prefers-reduced-motion: reduce) { .q-macros img { filter: none; } }

#route-path { stroke-width: 2 !important; }

/* —— 14.1 金色收尾修正：弃 gradient-clip（与 filter 组合在 Chromium 破坏裁切），实色香槟金 —— */
.giant-cta {
  background: none !important;
  -webkit-background-clip: initial !important;
  background-clip: initial !important;
  color: #d9b566 !important;
  -webkit-text-stroke: 0 !important;
  filter: none !important;
  text-shadow: 0 10px 34px rgba(201, 154, 46, .38);
}
.giant-cta:hover, .giant-cta:focus-visible {
  color: #eccf8e !important;
  transform: translateY(-4px);
}

/* ============================================================
   15.0 · 联系区恢复琥珀版（应用户要求回滚至金色版的联系合作观感）
   ============================================================ */
.contact .sec-label.light { color: #c99a2e; }
.giant-cta {
  background: none !important;
  -webkit-background-clip: initial !important; background-clip: initial !important;
  color: transparent !important;
  -webkit-text-stroke: 1.5px rgba(244, 240, 228, .95) !important;
  filter: none !important; text-shadow: none !important;
}
.giant-cta .giant-cta-t { text-shadow: 0 4px 26px rgba(10, 14, 12, .55); }
.giant-cta::before {
  display: block !important;
  background: linear-gradient(100deg, #c99a2e, #e8c56a) !important;
  -webkit-background-clip: text !important;
}
.giant-cta:hover, .giant-cta:focus-visible { color: transparent !important; }
.contact-val.contact-phone { color: #e8c56a; }
.contact-card { border-color: rgba(201, 154, 46, .3); }
.footer-mark { -webkit-text-stroke: 1.5px rgba(238, 240, 234, .6); }

/* —— 与山河同行：字腹金色流光（--gx/--gy 由指针写入）+ 拨打电话金按钮 —— */
.contact-card .btn-solid {
  background: linear-gradient(105deg, #c99a2e, #e0b95c 55%, #c99a2e);
  color: #17150e;
  box-shadow: 0 16px 40px -14px rgba(201, 154, 46, .55);
}
.contact-card .btn-solid:hover {
  background: linear-gradient(105deg, #d9ac49, #eccf8e 55%, #d9ac49);
}
.contact-card .btn-solid::after {
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .5), transparent);
}

/* —— 回归原生滚动：html 恢复原生锚点平滑，仅菜单锁定 —— */
html { scroll-behavior: smooth; }
body.menu-open { overflow: hidden; }

/* ============================================================
   18.0 · 手机版专项  Mobile Polish
   ============================================================ */

/* —— 触屏基础：无系统高亮，全部交互给按压反馈 —— */
html { -webkit-tap-highlight-color: transparent; }
@media (hover: none) {
  .biz-card:hover .biz-bg, .footage-card:hover video { transform: none; }
  .btn:active, .footage-play:active, .back-top:active,
  .menu-index a:active, .nav-brand:active { transform: scale(.96); }
  .biz-card:active, .herb-card:active { transform: scale(.985); }
  .footage-card:active video { filter: brightness(1.15); }
}

/* —— 触控目标加大（≥44px）—— */
.nav-burger { width: 44px; height: 44px; display: grid; place-items: center; }
.nav-burger span { margin: 0; }
.lang-toggle { min-height: 44px; padding: .5rem 1rem; }
.footage-play { width: 46px; height: 46px; }

/* —— 刘海屏安全区 —— */
@supports (padding: env(safe-area-inset-bottom)) {
  .nav { padding-top: calc(1rem + env(safe-area-inset-top) * .5); }
  .footer-row { padding-bottom: calc(.6rem + env(safe-area-inset-bottom)); }
  .hero-inner { padding-bottom: calc(clamp(4.5rem, 12vh, 7.5rem) + env(safe-area-inset-bottom)); }
  .scroll-hint { bottom: calc(1.4rem + env(safe-area-inset-bottom)); }
}

/* —— 首屏手机排版微调 —— */
@media (max-width: 760px) {
  .hero-title { font-size: clamp(2.15rem, 11.5vw, 3.2rem); line-height: 1.12; }
  .hero-row { margin-top: 1.25rem; padding-top: 1rem; gap: .9rem; }
  .hero-row .hero-tagline { font-size: 1.02rem; }
  .hero-row .hero-sub { font-size: .74rem; line-height: 1.95; letter-spacing: .06em; }
  .hero-cta { margin-top: 1.5rem; gap: .62rem; }
  .hero-cta .btn { padding: .82rem 1rem; }
  /* 文字下的深色渐变垫层，保证亮画面处可读 */
  .hero-inner::before {
    content: ""; position: absolute; inset: -8% -6vw -14%; z-index: -1;
    background: radial-gradient(120% 90% at 50% 78%, rgba(10, 14, 12, .52), transparent 68%);
    pointer-events: none;
  }
  .scroll-hint { display: none; } /* 手机上按钮即入口，去掉底部拥挤 */
}

/* —— 地图手机版：横向滑动浏览，保住可读性 —— */
@media (max-width: 760px) {
  .map-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .map-wrap::-webkit-scrollbar { display: none; }
  .map-wrap svg { min-width: 640px; }
  .map-tip { max-width: 300px; }
  .map-legend { font-size: .78rem; }
  .map-legend::after {
    content: "← 左右滑动查看全图 →"; display: block; width: 100%;
    margin-top: .7rem; font-size: .68rem; letter-spacing: .2em; color: rgba(205, 216, 207, .55);
  }
}

/* —— 其他手机细节 —— */
@media (max-width: 760px) {
  .biz-card { min-height: 250px; }
  .herb-lot { font-size: .64rem; }
  .interlude { min-height: 56vh; }
  .interlude-main p { letter-spacing: .2em; text-indent: .2em; }
  .menu-tel { font-size: 1.3rem; }
}

/* —— 19.1 页脚：恢复三个大描边字（应用户要求，撤掉印章方案） —— */
.footer-mark {
  writing-mode: horizontal-tb;
  font-size: clamp(4.5rem, 16vw, 13rem);
  letter-spacing: .12em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(238, 240, 234, .55);
  background: none;
  padding: 0; border-radius: 0; transform: none;
  box-shadow: none; text-shadow: none;
  transition: -webkit-text-stroke-color .5s, color .5s;
}
.footer-mark:hover { -webkit-text-stroke-color: rgba(238, 240, 234, .9); }
@media (max-width: 760px) {
  .footer-mark { font-size: clamp(4rem, 22vw, 7rem); }
}

/* —— 19.2 CTA 终版：精确复刻琥珀版（此块为最终裁决，后写覆盖一切） ——
   静止：米白描边 + 暗晕；悬停：整字瞬时琥珀实色 —— */
.giant-cta {
  background: none !important;
  -webkit-background-clip: initial !important; background-clip: initial !important;
  color: transparent !important;
  -webkit-text-stroke: 1.5px rgba(244, 240, 228, .95) !important;
  filter: none !important; text-shadow: none !important;
}
.giant-cta::before { display: none !important; }
.giant-cta:hover, .giant-cta:focus-visible {
  color: #c99a2e !important;
  -webkit-text-stroke-color: #c99a2e !important;
}

/* —— 19.3 CTA = ①初版观感（用户对比用；此块覆盖 19.2） ——
   衬线描边字，悬停 0.5s 渐变铜金 #cba96b，描边淡出，拉丁副标铜色 —— */
.giant-cta {
  font-family: var(--font-serif) !important;
  letter-spacing: .12em !important;
  color: transparent !important;
  -webkit-text-stroke: 1.5px rgba(233, 239, 230, .8) !important;
  transition: color .5s cubic-bezier(.22,.8,.32,1), -webkit-text-stroke-color .5s !important;
}
.giant-cta:hover, .giant-cta:focus-visible {
  color: #cba96b !important;
  -webkit-text-stroke-color: transparent !important;
}
.giant-cta::after { color: rgba(203, 169, 107, .85) !important; }

/* —— 19.4 CTA 悬停 = 拨打电话同款：金色填充 + 刀光白带快速扫过（裁切进字形） —— */
.giant-cta:hover, .giant-cta:focus-visible {
  color: transparent !important;
  -webkit-text-stroke-color: transparent !important;
}
.giant-cta:hover .giant-cta-t, .giant-cta:focus-visible .giant-cta-t {
  -webkit-background-clip: text !important;
  background-clip: text !important;
  color: transparent !important;
  background-image:
    linear-gradient(100deg, transparent 32%, rgba(255, 255, 255, .92) 50%, transparent 68%),
    linear-gradient(105deg, #c99a2e, #e0b95c 55%, #c99a2e) !important;
  background-size: 220% 100%, 100% 100% !important;
  background-repeat: no-repeat !important;
  animation: ctaBlade .75s cubic-bezier(.22, .8, .32, 1) forwards !important;
}
@keyframes ctaBlade {
  from { background-position: -160% 0, 0 0; }
  to { background-position: 280% 0, 0 0; }
}
@media (prefers-reduced-motion: reduce) {
  .giant-cta:hover .giant-cta-t, .giant-cta:focus-visible .giant-cta-t { animation: none !important; background-position: 280% 0, 0 0 !important; }
}

/* —— 19.5 CTA 终版规格：带框；悬停 框变金 + 字变白实色 + 刀光白带扫框（1.25s） —— */
.giant-cta {
  border: 1.5px solid rgba(233, 236, 229, .8) !important;
  padding: .45em .85em .55em !important;
  transition: background .4s ease, border-color .4s ease, color .4s ease, -webkit-text-stroke-color .4s ease !important;
}
.giant-cta:hover, .giant-cta:focus-visible {
  background: linear-gradient(105deg, #c99a2e, #e0b95c 55%, #c99a2e) !important;
  border-color: rgba(201, 154, 46, 0) !important;
  color: #ffffff !important;
  -webkit-text-stroke-color: transparent !important;
}
.giant-cta:hover .giant-cta-t, .giant-cta:focus-visible .giant-cta-t {
  background: none !important;
  animation: none !important;
  -webkit-background-clip: initial !important; background-clip: initial !important;
  color: inherit !important;
  text-shadow: none !important;
}
/* 刀光：白带从左扫过整个框（同款斜切，节奏放慢） */
.giant-cta-t { position: relative; display: inline-block; }
.giant-cta-t::after {
  content: ""; position: absolute; top: -18%; bottom: -18%; left: -75%;
  width: 42%; transform: skewX(-22deg);
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .78), transparent);
  transition: left 1.25s cubic-bezier(.22, .8, .32, 1);
  pointer-events: none;
}
.giant-cta:hover .giant-cta-t::after,
.giant-cta:focus-visible .giant-cta-t::after { left: 135%; }
@media (prefers-reduced-motion: reduce) {
  .giant-cta-t::after { display: none; }
}

/* —— 19.6 CTA 定版微调：五个字一排；静止无框；悬停金框渐显 + 金晕 —— */
.giant-cta {
  border-color: transparent !important;
  padding: .4em .8em .5em !important;
  white-space: nowrap !important;
  border-radius: 4px !important;
  box-shadow: none !important;
  transition: background .45s ease, box-shadow .45s ease, color .4s ease, -webkit-text-stroke-color .4s ease !important;
}
.giant-cta:hover, .giant-cta:focus-visible {
  background: linear-gradient(105deg, #c99a2e, #e0b95c 55%, #c99a2e) !important;
  box-shadow: 0 22px 60px -16px rgba(201, 154, 46, .55), 0 0 0 1px rgba(232, 197, 106, .35) !important;
  border-color: transparent !important;
}

/* —— 19.7 CTA 精修：比例/小字间距/悬停上浮/刀光移开即隐 —— */
.giant-cta {
  padding: .34em .68em .42em !important;
  margin-bottom: 3.4rem !important;
  transition: background .45s ease, box-shadow .45s ease, color .4s ease,
              -webkit-text-stroke-color .4s ease, transform .45s cubic-bezier(.22,.8,.32,1) !important;
}
.giant-cta:hover, .giant-cta:focus-visible {
  transform: translateY(-4px) !important;
}
.giant-cta::after {
  bottom: -1.9em !important;
  letter-spacing: .5em !important;
  color: rgba(205, 216, 207, .5) !important;
}
.giant-cta-t::after {
  transition: none !important;
  opacity: 0;
}
.giant-cta:hover .giant-cta-t::after,
.giant-cta:focus-visible .giant-cta-t::after {
  transition: left 1.25s cubic-bezier(.22,.8,.32,1), opacity .25s ease !important;
  opacity: 1 !important;
}
@media (max-width: 760px) {
  .giant-cta { font-size: clamp(1.7rem, 9vw, 2.5rem) !important; padding: .38em .6em .46em !important; }
  .giant-cta::after { bottom: -1.7em !important; letter-spacing: .32em !important; }
}

/* —— 19.8 CTA 融入版式：黑体系统、层级归位（悬停效果不变） —— */
.giant-cta {
  font-family: var(--font-display) !important;
  font-weight: 900 !important;
  font-size: clamp(1.7rem, 3.8vw, 2.7rem) !important;
  letter-spacing: .22em !important;
  line-height: 1.2 !important;
  margin: 1.7rem 0 2.4rem !important;
  padding: .5em 1em .55em !important;
}
.giant-cta .giant-cta-t { text-shadow: 0 3px 20px rgba(10, 14, 12, .45) !important; }
.giant-cta::after {
  font-size: .56rem !important;
  letter-spacing: .46em !important;
  bottom: -1.45em !important;
  color: rgba(205, 216, 207, .48) !important;
}
@media (max-width: 760px) {
  .giant-cta { font-size: 1.35rem !important; letter-spacing: .18em !important; margin: 1.4rem 0 2rem !important; }
  .giant-cta::after { display: none; }
}