/* ==========================================================================
   树本源 · 苓焱 自然共生谷物 — 官网样式表
   Palette 取自产地影像：宣纸米白 / 稻田墨绿 / 朱鹮朱红 / 稻穗暖金 / 黑米墨黑
   ========================================================================== */

:root {
  /* 色板 */
  --paper: #f7f3ea;
  --paper-2: #efe8db;
  --paper-3: #e6ddcb;
  --ink: #1c1a17;
  --ink-2: #3a3733;
  --ink-3: #6b6660;
  --ink-4: #97918a;
  --line: #ddd3c0;
  --line-2: #cabfa8;

  --paddy: #1f4634;        /* 稻田墨绿（主色） */
  --paddy-2: #2c5b45;
  --paddy-3: #437059;
  --vermilion: #b0361f;    /* 朱鹮朱红（强调） */
  --vermilion-2: #c9502f;
  --gold: #b98a37;         /* 稻穗暖金 */
  --gold-2: #d9b978;
  --grain: #4a3348;        /* 黑米花青素紫 */

  /* 字体 */
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  /* 尺度 */
  --maxw: 1240px;
  --maxw-text: 800px;
  --r-sm: 4px;
  --r-md: 10px;
  --r-lg: 18px;
  --gap: clamp(20px, 3vw, 34px);
  --sec-y: clamp(64px, 9vw, 128px);
  --shadow-1: 0 1px 2px rgba(28, 26, 23, .05), 0 8px 24px -12px rgba(28, 26, 23, .12);
  --shadow-2: 0 2px 6px rgba(28, 26, 23, .06), 0 24px 48px -20px rgba(28, 26, 23, .22);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
picture { display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, h5 { font-family: var(--serif); font-weight: 600; line-height: 1.28; margin: 0; letter-spacing: .02em; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--vermilion); outline-offset: 3px; }
::selection { background: var(--gold-2); color: var(--ink); }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--paddy); color: #fff; padding: 10px 18px; border-radius: 0 0 var(--r-sm) 0;
}
.skip:focus { left: 0; }

/* ---------- layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(18px, 4vw, 40px); }
.wrap-narrow { max-width: var(--maxw-text); }
.section { padding-block: var(--sec-y); position: relative; }
.section--tint { background: var(--paper-2); }
.section--dark { background: var(--paddy); color: #f1ece1; }
.section--ink { background: #14120f; color: #efe9dd; }
.section--flush { padding-block-start: 0; }
.stack-lg > * + * { margin-top: clamp(28px, 4vw, 48px); }
.grid { display: grid; gap: var(--gap); }
.center { text-align: center; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- 章节标题 ---------- */
.kicker {
  font-family: var(--sans); font-size: 12px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--vermilion); margin: 0 0 14px; display: flex; align-items: center; gap: 12px;
}
.kicker::before { content: ""; width: 26px; height: 1px; background: currentColor; flex: none; }
.kicker--center { justify-content: center; }
.kicker--center::after { content: ""; width: 26px; height: 1px; background: currentColor; }
.sec-h { font-size: clamp(26px, 3.6vw, 42px); margin-bottom: 16px; }
.sec-lead { color: var(--ink-3); font-size: clamp(15px, 1.2vw, 17.5px); max-width: 62ch; }
.section--dark .sec-lead, .section--ink .sec-lead { color: rgba(240, 234, 222, .74); }
.section--dark .sec-h, .section--ink .sec-h { color: #f6f1e6; }
.sec-head { margin-bottom: clamp(32px, 5vw, 60px); }
.sec-head--row { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; flex-wrap: wrap; }

/* ---------- 按钮 / 链接 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; justify-content: center;
  padding: 13px 28px; border: 1px solid transparent; border-radius: 999px;
  font-size: 15px; font-weight: 500; letter-spacing: .06em; cursor: pointer;
  transition: transform .35s var(--ease), background .3s, color .3s, border-color .3s, box-shadow .3s;
  text-align: center;
}
.btn--solid { background: var(--paddy); color: #f7f3ea; }
.btn--solid:hover { background: var(--paddy-2); transform: translateY(-2px); box-shadow: var(--shadow-1); }
.btn--accent { background: var(--vermilion); color: #fff; }
.btn--accent:hover { background: var(--vermilion-2); transform: translateY(-2px); box-shadow: var(--shadow-1); }
.btn--ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn--ghost:hover { background: rgba(31, 70, 52, .07); transform: translateY(-2px); }
.section--dark .btn--ghost:hover, .section--ink .btn--ghost:hover { background: rgba(255, 255, 255, .1); }
.btn--sm { padding: 9px 18px; font-size: 13.5px; }

.more {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14.5px; letter-spacing: .1em;
  color: var(--paddy); border-bottom: 1px solid var(--line-2); padding-bottom: 3px; transition: gap .3s var(--ease), color .3s, border-color .3s;
}
.more:hover { gap: 14px; color: var(--vermilion); border-color: var(--vermilion); }
.more::after { content: "→"; font-family: var(--sans); }

/* ---------- 页头 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247, 243, 234, .82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.site-header.is-stuck { border-color: var(--line); box-shadow: 0 6px 24px -18px rgba(28, 26, 23, .5); }
.header-inner { display: flex; align-items: center; gap: 24px; min-height: 74px; }

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand__mark { width: 38px; height: 38px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__cn { font-family: var(--serif); font-size: 21px; font-weight: 600; letter-spacing: .14em; }
.brand__en { font-size: 9.5px; letter-spacing: .26em; color: var(--ink-4); text-transform: uppercase; }

.nav { margin-left: auto; }
.nav ul { display: flex; align-items: center; gap: clamp(4px, 1.4vw, 18px); }
.nav a {
  position: relative; display: block; padding: 8px 2px; font-size: 15px; color: var(--ink-2);
  letter-spacing: .04em; transition: color .25s;
}
.nav a::after {
  content: ""; position: absolute; left: 50%; bottom: 0; width: 0; height: 2px;
  background: var(--vermilion); transform: translateX(-50%); transition: width .3s var(--ease);
}
.nav a:hover { color: var(--paddy); }
.nav a:hover::after, .nav a.is-current::after { width: 100%; }
.nav a.is-current { color: var(--paddy); font-weight: 600; }
.header-cta { flex: none; }

.nav-toggle {
  display: none; margin-left: auto; width: 44px; height: 44px; border: 1px solid var(--line-2);
  background: transparent; border-radius: var(--r-sm); cursor: pointer; position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 18px; height: 1.5px; background: var(--ink);
  transform: translate(-50%, -50%); transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle span::before { top: -6px; left: 0; }
.nav-toggle span::after { top: 6px; left: 0; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); background: var(--ink); }
body.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); background: var(--ink); }

/* ---------- 首屏 ---------- */
.hero { position: relative; overflow: hidden; background: var(--paper); }
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 62%; }
.hero__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(247, 243, 234, .97) 0%, rgba(247, 243, 234, .88) 38%, rgba(247, 243, 234, .34) 66%, rgba(247, 243, 234, .06) 100%);
}
.hero__inner { position: relative; z-index: 1; padding-block: clamp(72px, 13vw, 168px); }
.hero__eyebrow {
  font-size: 12px; letter-spacing: .3em; color: var(--vermilion); margin-bottom: 22px;
  display: flex; align-items: center; gap: 12px;
}
.hero__eyebrow::before { content: ""; width: 34px; height: 1px; background: currentColor; }
.hero h1 {
  font-size: clamp(34px, 6.2vw, 74px); line-height: 1.14; letter-spacing: .04em; margin-bottom: 8px;
  color: var(--paddy);
}
.hero h1 em { font-style: normal; color: var(--vermilion); }
.hero__slogan {
  font-family: var(--serif); font-size: clamp(15px, 1.7vw, 21px); letter-spacing: .22em;
  color: var(--gold); margin: 18px 0 22px;
}
.hero__desc { max-width: 46ch; color: var(--ink-2); font-size: clamp(15px, 1.15vw, 17px); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: clamp(28px, 4vw, 42px); }
.hero__badges {
  position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center;
  padding: 18px 0 clamp(28px, 4vw, 40px); border-top: 1px solid var(--line); margin-top: 8px;
}
.hero__badges li { font-size: 13px; letter-spacing: .1em; color: var(--ink-3); display: flex; align-items: center; gap: 8px; }
.hero__badges li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }

/* 内页 banner */
.page-hero { position: relative; background: var(--paddy); color: #f6f1e6; overflow: hidden; }
.page-hero__media { position: absolute; inset: 0; opacity: .42; }
.page-hero__media img { width: 100%; height: 100%; object-fit: cover; }
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20, 45, 33, .35), rgba(20, 45, 33, .86));
}
.page-hero__inner { position: relative; z-index: 1; padding-block: clamp(64px, 10vw, 124px); }
.page-hero h1 { font-size: clamp(30px, 5vw, 56px); color: #f8f4ea; letter-spacing: .06em; }
.page-hero p { max-width: 60ch; color: rgba(244, 238, 226, .8); margin-top: 16px; }
.page-hero .kicker { color: var(--gold-2); }

.crumbs { font-size: 13px; color: var(--ink-4); letter-spacing: .08em; }
.crumbs a:hover { color: var(--vermilion); }
.crumbs span + span::before { content: "/"; margin: 0 8px; color: var(--line-2); }
.page-hero .crumbs { color: rgba(244, 238, 226, .6); margin-bottom: 22px; }
.page-hero .crumbs a:hover { color: var(--gold-2); }

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stat { background: var(--paper); padding: clamp(22px, 3vw, 34px) clamp(16px, 2vw, 26px); text-align: center; }
.section--dark .stat { background: var(--paddy); border-color: rgba(255,255,255,.06); }
.stat__num {
  font-family: var(--serif); font-size: clamp(30px, 4.4vw, 50px); line-height: 1; color: var(--paddy);
  display: flex; align-items: baseline; justify-content: center; gap: 3px;
}
.section--dark .stat__num { color: var(--gold-2); }
.stat__unit { font-size: clamp(13px, 1.3vw, 17px); font-family: var(--sans); color: var(--vermilion); letter-spacing: .04em; }
.section--dark .stat__unit { color: #fff; }
.stat__label { margin-top: 12px; font-size: 13.5px; color: var(--ink-3); letter-spacing: .1em; }
.section--dark .stat__label { color: rgba(240, 234, 222, .68); }

/* ---------- 卡片 ---------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden;
  display: flex; flex-direction: column; transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .3s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); border-color: var(--line-2); }
.card__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper-3); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.card:hover .card__media img { transform: scale(1.06); }
.card__body { padding: clamp(20px, 2.4vw, 28px); display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card__tag {
  font-size: 11.5px; letter-spacing: .2em; color: var(--vermilion); text-transform: uppercase;
}
.card h3 { font-size: clamp(18px, 1.7vw, 22px); }
.card p { color: var(--ink-3); font-size: 14.8px; line-height: 1.85; }
.card__foot { margin-top: auto; padding-top: 8px; }

.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* 图文交替 */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(30px, 6vw, 84px); align-items: center; }
.split--rev .split__media { order: 2; }
.split__media { position: relative; border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-2); }
.split__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.split__media--tall img { aspect-ratio: 3 / 4; }
.split__note {
  position: absolute; left: 0; bottom: 0; right: 0; padding: 26px 22px 18px;
  background: linear-gradient(transparent, rgba(20, 18, 15, .78)); color: #f3eee2; font-size: 13px; letter-spacing: .08em;
}
.split__body h2 { font-size: clamp(24px, 3.1vw, 38px); margin-bottom: 18px; }
.split__body p { color: var(--ink-2); }
.split__list { margin-top: 22px; display: grid; gap: 12px; }
.split__list li { display: grid; grid-template-columns: 22px 1fr; gap: 12px; font-size: 15px; color: var(--ink-2); }
.split__list li::before {
  content: ""; width: 8px; height: 8px; margin-top: 10px; border: 1px solid var(--gold);
  background: var(--gold-2); transform: rotate(45deg);
}
.chip {
  display: inline-block; padding: 5px 14px; border: 1px solid var(--line-2); border-radius: 999px;
  font-size: 12.5px; letter-spacing: .12em; color: var(--paddy); background: rgba(255, 255, 255, .6);
}

/* 特性小卡 */
.feature {
  padding: clamp(24px, 2.6vw, 34px); border: 1px solid var(--line); border-radius: var(--r-md);
  background: rgba(255, 255, 255, .58); transition: transform .4s var(--ease), background .4s, border-color .4s;
}
.feature:hover { transform: translateY(-4px); background: #fff; border-color: var(--gold-2); }
.feature__icon { width: 44px; height: 44px; margin-bottom: 18px; color: var(--paddy); }
.feature h3 { font-size: 19px; margin-bottom: 10px; }
.feature p { font-size: 14.5px; color: var(--ink-3); }
.feature__num { font-family: var(--serif); font-size: 13px; letter-spacing: .2em; color: var(--gold); }

/* 编号列表（八要素等） */
.numbered { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.numbered > div { background: var(--paper); padding: clamp(22px, 2.6vw, 30px); }
.section--tint .numbered > div { background: var(--paper-2); }
.numbered h3 { font-size: 18px; margin-bottom: 8px; display: flex; align-items: baseline; gap: 12px; }
.numbered h3 i { font-style: normal; font-family: var(--serif); font-size: 13px; color: var(--vermilion); letter-spacing: .1em; }
.numbered p { font-size: 14.5px; color: var(--ink-3); margin: 0; }

/* ---------- 产品 ---------- */
.filter { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: clamp(26px, 4vw, 42px); }
.filter button, .filter a {
  padding: 9px 20px; border: 1px solid var(--line-2); background: transparent; border-radius: 999px;
  font-size: 14px; letter-spacing: .08em; cursor: pointer; color: var(--ink-2); transition: all .3s var(--ease);
}
.filter button:hover, .filter a:hover { border-color: var(--paddy); color: var(--paddy); background: rgba(31, 70, 52, .06); }
.filter button[aria-pressed="true"], .filter a.is-active { background: var(--paddy); border-color: var(--paddy); color: #f7f3ea; }

.product { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.product:hover { border-color: var(--gold-2); box-shadow: var(--shadow-2); }
.product__media {
  aspect-ratio: 1 / 1; background: #fbfaf7; display: grid; place-items: center; padding: 18px;
  border-bottom: 1px solid var(--line);
}
.product__media img { max-height: 100%; width: auto; object-fit: contain; transition: transform .7s var(--ease); }
.product:hover .product__media img { transform: scale(1.05) translateY(-4px); }
.product__body { padding: 20px 22px 24px; }
.product__cat { font-size: 11.5px; letter-spacing: .18em; color: var(--gold); text-transform: uppercase; }
.product h3 { font-size: 19px; margin: 8px 0 6px; }
.product p { font-size: 14px; color: var(--ink-3); line-height: 1.8; }
.product__spec { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--ink-2); }
.product__spec b { font-weight: 600; color: var(--paddy); }
.product[hidden] { display: none; }

/* ---------- 营养 ---------- */
.nutri-hero { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(30px, 5vw, 70px); align-items: center; }
.bignum { font-family: var(--serif); font-size: clamp(72px, 13vw, 168px); line-height: .88; color: var(--grain); letter-spacing: -.02em; }
.section--dark .bignum { color: var(--gold-2); }
.bignum small { font-size: clamp(18px, 2.4vw, 30px); letter-spacing: .06em; color: var(--vermilion); }
.section--dark .bignum small { color: #fff; }

.bars { display: grid; gap: 18px; }
.bar__head { display: flex; justify-content: space-between; align-items: baseline; font-size: 14px; margin-bottom: 8px; }
.bar__name { letter-spacing: .1em; color: var(--ink-2); }
.bar__val { font-family: var(--serif); font-size: 18px; color: var(--paddy); }
.bar__track { height: 10px; background: rgba(255, 255, 255, .5); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.section--dark .bar__track { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .18); }
.bar__fill {
  height: 100%; width: 0; border-radius: 999px; background: var(--paddy-3);
  transition: width 1.5s var(--ease);
}
.bar--hi .bar__fill { background: linear-gradient(90deg, var(--grain), var(--vermilion)); }
.bar--hi .bar__val, .bar--hi .bar__name { color: var(--vermilion); }
.section--dark .bar--hi .bar__val, .section--dark .bar--hi .bar__name { color: var(--gold-2); }
.bar__note { font-size: 12.5px; color: var(--ink-4); margin-top: 6px; }

.nutri-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255, 255, 255, .16); }
.nutri-list > div { background: var(--paddy); padding: clamp(24px, 3vw, 34px); }
.nutri-list h3 { font-size: 21px; color: #f7f2e7; margin-bottom: 10px; }
.nutri-list h3 span { color: var(--gold-2); font-size: 13px; letter-spacing: .18em; display: block; margin-bottom: 8px; font-family: var(--sans); }
.nutri-list p { font-size: 14.5px; color: rgba(240, 234, 222, .76); margin: 0; }

.gi-scale { margin-top: 26px; }
.gi-scale__bar { position: relative; height: 42px; border-radius: 999px; overflow: hidden; display: flex; border: 1px solid var(--line-2); }
.gi-scale__seg { flex: 1; display: grid; place-items: center; font-size: 12.5px; letter-spacing: .1em; color: #fff; }
.gi-scale__seg:nth-child(1) { background: #4b7a5c; }
.gi-scale__seg:nth-child(2) { background: #b98a37; }
.gi-scale__seg:nth-child(3) { background: #b0361f; }
.gi-scale__pin { position: absolute; top: -6px; bottom: -6px; width: 2px; background: var(--ink); }
.gi-scale__labels { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-4); margin-top: 10px; }

/* 人群 */
.audience { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.audience__item { text-align: center; }
.audience__pic { aspect-ratio: 1 / 1; border-radius: 50%; overflow: hidden; border: 1px solid var(--line-2); background: #fff; }
.audience__pic img { width: 100%; height: 100%; object-fit: cover; }
.audience h3 { font-size: 18.5px; margin: 18px 0 8px; }
.audience p { font-size: 14px; color: var(--ink-3); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 1px; background: var(--line-2); }
.timeline > li { position: relative; padding-bottom: clamp(26px, 3.4vw, 40px); }
.timeline > li:last-child { padding-bottom: 0; }
.timeline > li::before {
  content: ""; position: absolute; left: -34px; top: 9px; width: 15px; height: 15px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--vermilion);
}
.section--tint .timeline > li::before { background: var(--paper-2); }
.timeline time { font-family: var(--serif); font-size: 15px; letter-spacing: .12em; color: var(--gold); }
.timeline h3 { font-size: 19px; margin: 6px 0 8px; }
.timeline p { font-size: 14.8px; color: var(--ink-3); margin: 0; }

/* ---------- 认证 / 荣誉 ---------- */
.badges { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.badge {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: clamp(22px, 2.6vw, 30px);
  display: grid; grid-template-columns: 84px 1fr; gap: 22px; align-items: center;
}
.badge img { width: 84px; height: 84px; object-fit: contain; border-radius: 4px; }
.badge h3 { font-size: 18px; margin-bottom: 6px; }
.badge p { font-size: 13.5px; color: var(--ink-3); margin: 0; }

.honors { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.honor { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.honor__media { aspect-ratio: 4 / 3; background: var(--paper-2); overflow: hidden; }
.honor__media img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.honor__body { padding: 16px 18px 20px; }
.honor h3 { font-size: 16px; line-height: 1.5; }
.honor span { font-size: 12.5px; color: var(--ink-4); letter-spacing: .08em; }

/* ---------- 溯源步骤 ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.steps > li { background: var(--paper); padding: clamp(20px, 2.2vw, 28px); counter-increment: step; position: relative; }
.section--tint .steps > li { background: var(--paper-2); }
.steps > li::before {
  content: "0" counter(step); font-family: var(--serif); font-size: 13px; letter-spacing: .16em; color: var(--vermilion);
  display: block; margin-bottom: 12px;
}
.steps h3 { font-size: 17px; margin-bottom: 8px; }
.steps p { font-size: 13.5px; color: var(--ink-3); margin: 0; }

/* ---------- 引用 / 宣言 ---------- */
.quote { position: relative; padding: clamp(28px, 4vw, 46px) clamp(24px, 4vw, 56px); border-left: 2px solid var(--vermilion); background: rgba(255, 255, 255, .62); }
.quote p { font-family: var(--serif); font-size: clamp(18px, 2.3vw, 27px); line-height: 1.72; color: var(--paddy); margin: 0; }
.quote cite { display: block; margin-top: 16px; font-style: normal; font-size: 13px; letter-spacing: .16em; color: var(--ink-4); }

.manifesto { text-align: center; max-width: 760px; margin-inline: auto; }
.manifesto__en { font-family: var(--serif); font-size: clamp(18px, 2.4vw, 28px); letter-spacing: .16em; color: var(--gold); }
.manifesto h2 { font-size: clamp(24px, 3.4vw, 40px); margin: 18px 0; }
.manifesto p { color: var(--ink-3); }

/* ---------- 新闻 ---------- */
.news-item { display: grid; grid-template-columns: 200px 1fr; gap: clamp(18px, 3vw, 34px); align-items: start; padding-bottom: clamp(24px, 3vw, 34px); border-bottom: 1px solid var(--line); }
.news-item:last-child { border-bottom: 0; padding-bottom: 0; }
.news-item__media { border-radius: var(--r-sm); overflow: hidden; aspect-ratio: 4 / 3; background: var(--paper-3); }
.news-item__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.news-item:hover .news-item__media img { transform: scale(1.06); }
.news-item time { font-size: 12.5px; letter-spacing: .14em; color: var(--gold); }
.news-item h3 { font-size: clamp(18px, 1.8vw, 23px); margin: 8px 0 10px; }
.news-item h3 a:hover { color: var(--vermilion); }
.news-item p { font-size: 14.6px; color: var(--ink-3); }
.tag { display: inline-block; font-size: 11.5px; letter-spacing: .14em; color: var(--paddy); border: 1px solid var(--line-2); border-radius: 999px; padding: 3px 11px; margin-left: 10px; vertical-align: 2px; }

/* ---------- 画廊 ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gallery--3 { grid-template-columns: repeat(3, 1fr); }
.gallery figure { margin: 0; position: relative; border-radius: var(--r-sm); overflow: hidden; aspect-ratio: 4 / 3; background: var(--paper-3); cursor: pointer; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease), filter .4s; }
.gallery figure:hover img { transform: scale(1.07); }
.gallery figcaption {
  position: absolute; inset: auto 0 0 0; padding: 26px 14px 12px; font-size: 12.5px; letter-spacing: .06em; color: #f5f0e5;
  background: linear-gradient(transparent, rgba(20, 18, 15, .82)); opacity: 0; transform: translateY(6px); transition: all .4s var(--ease);
}
.gallery figure:hover figcaption { opacity: 1; transform: none; }

.lightbox { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; background: rgba(18, 16, 14, .92); padding: 5vh 5vw; opacity: 0; pointer-events: none; transition: opacity .35s; }
.lightbox.is-open { opacity: 1; pointer-events: auto; }
.lightbox img { max-width: 100%; max-height: 82vh; border-radius: var(--r-sm); box-shadow: var(--shadow-2); }
.lightbox p { color: #e9e2d4; font-size: 14px; margin-top: 14px; text-align: center; }
.lightbox__close { position: absolute; top: 22px; right: 26px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.35); background: transparent; color: #fff; font-size: 22px; line-height: 1; cursor: pointer; }
.lightbox__close:hover { background: rgba(255, 255, 255, .12); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-md); background: #fff; }
table.data { min-width: 640px; font-size: 14.5px; }
table.data caption { text-align: left; padding: 18px 22px 0; font-size: 13px; color: var(--ink-4); letter-spacing: .08em; caption-side: bottom; }
table.data th, table.data td { padding: 14px 20px; text-align: left; border-bottom: 1px solid var(--line); }
table.data thead th { background: var(--paddy); color: #f5f0e5; font-weight: 500; letter-spacing: .08em; font-size: 13.5px; border-bottom: 0; }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: var(--paper); }
table.data td b { color: var(--vermilion); font-weight: 600; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 20px 44px 20px 0; position: relative;
  font-family: var(--serif); font-size: clamp(16.5px, 1.7vw, 20px); color: var(--paddy);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--vermilion); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq summary:hover { color: var(--vermilion); }
.faq__body { padding: 0 0 22px; color: var(--ink-3); font-size: 15px; }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 13.5px; letter-spacing: .1em; color: var(--ink-2); }
.field label i { font-style: normal; color: var(--vermilion); margin-left: 3px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 16px; background: #fff; border: 1px solid var(--line-2); border-radius: var(--r-sm);
  font-size: 15px; transition: border-color .25s, box-shadow .25s;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: 0; border-color: var(--paddy); box-shadow: 0 0 0 3px rgba(31, 70, 52, .12); }
.field--row { grid-template-columns: 1fr 1fr; gap: var(--gap); display: grid; }
.field .err { font-size: 12.5px; color: var(--vermilion); min-height: 1em; }
.form-note { font-size: 13px; color: var(--ink-4); }
.form-status { font-size: 14.5px; padding: 12px 16px; border-radius: var(--r-sm); background: rgba(31, 70, 52, .08); color: var(--paddy); border: 1px solid rgba(31, 70, 52, .2); }
.form-status[hidden] { display: none; }

.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: clamp(24px, 3vw, 34px); }
.contact-card h3 { font-size: 20px; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.contact-card dl { display: grid; grid-template-columns: 76px 1fr; gap: 14px 18px; margin: 0; font-size: 15px; }
.contact-card dt { color: var(--ink-4); font-size: 13.5px; letter-spacing: .1em; padding-top: 3px; }
.contact-card dd { margin: 0; color: var(--ink); }
.contact-card dd a:hover { color: var(--vermilion); }

/* ---------- CTA 条 ---------- */
.cta-band { background: var(--paddy); color: #f4efe3; position: relative; overflow: hidden; }
.cta-band__media { position: absolute; inset: 0; opacity: .22; }
.cta-band__media img { width: 100%; height: 100%; object-fit: cover; }
.cta-band__inner { position: relative; z-index: 1; padding-block: clamp(48px, 7vw, 84px); display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-band h2 { font-size: clamp(22px, 3vw, 36px); color: #f8f4ea; }
.cta-band p { color: rgba(244, 238, 226, .74); margin-top: 10px; max-width: 52ch; }
.cta-band .btn--accent { flex: none; }

/* ---------- 页脚 ---------- */
.site-footer { background: #16130f; color: #b9b1a4; padding-top: clamp(48px, 6vw, 78px); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: clamp(26px, 4vw, 56px); padding-bottom: clamp(34px, 4vw, 52px); }
.site-footer h4 { font-family: var(--sans); font-size: 13px; letter-spacing: .2em; color: #efe9dc; margin-bottom: 18px; font-weight: 600; }
.site-footer li + li { margin-top: 10px; }
.site-footer a { color: #b9b1a4; transition: color .25s; }
.site-footer a:hover { color: var(--gold-2); }
.footer-brand .brand__cn { color: #f4efe3; }
.footer-brand p { margin-top: 18px; color: #8f887c; max-width: 34ch; line-height: 1.9; font-size: 13.5px; }
.footer-mark { display: flex; align-items: center; gap: 12px; }
.footer-mark .brand__mark { width: 34px; height: 34px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .09); padding-block: 22px 26px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: #7d7669; }
.footer-bottom a:hover { color: #d9b978; }
.disclaimer { background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--r-sm); padding: 14px 18px; margin-bottom: 26px; font-size: 12.5px; line-height: 1.9; color: #8f887c; }

.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 90; width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line-2); background: rgba(247, 243, 234, .92); color: var(--paddy); cursor: pointer;
  display: grid; place-items: center; opacity: 0; transform: translateY(12px); pointer-events: none;
  transition: opacity .35s, transform .35s var(--ease), background .3s;
  backdrop-filter: blur(6px);
}
.to-top.is-on { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--paddy); color: #fff; }

/* ---------- 动效 ---------- */
[data-reveal] { opacity: 0; transform: translateY(22px); }
[data-reveal].is-in { opacity: 1; transform: none; transition: opacity .8s var(--ease), transform .9s var(--ease); transition-delay: var(--d, 0ms); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .audience { grid-template-columns: repeat(2, 1fr); }
  .honors { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .gallery, .gallery--3 { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav {
    position: fixed; inset: 74px 0 auto 0; background: var(--paper); border-bottom: 1px solid var(--line);
    margin: 0; padding: 8px 0 22px; transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity .3s, transform .35s var(--ease); box-shadow: var(--shadow-2);
  }
  body.nav-open .nav { opacity: 1; transform: none; pointer-events: auto; }
  .nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav a { padding: 14px clamp(18px, 4vw, 40px); font-size: 16px; border-bottom: 1px solid var(--line); }
  .nav a::after { display: none; }
  .nav-toggle { display: block; }
  .header-cta { display: none; }
  .split, .nutri-hero { grid-template-columns: 1fr; }
  .split--rev .split__media { order: 0; }
  .cols-3 { grid-template-columns: repeat(2, 1fr); }
  .hero__media::after { background: linear-gradient(180deg, rgba(247,243,234,.96) 34%, rgba(247,243,234,.72) 62%, rgba(247,243,234,.28) 100%); }
  .hero__media img { object-position: 62% 40%; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .badges { grid-template-columns: 1fr; }
  .badge { grid-template-columns: 68px 1fr; }
  .badge img { width: 68px; height: 68px; }
}
@media (max-width: 640px) {
  .cols-2, .cols-3, .cols-4, .numbered, .nutri-list, .audience, .honors, .steps, .gallery, .gallery--3 { grid-template-columns: 1fr; }
  .numbered, .nutri-list, .steps { grid-template-columns: 1fr 1fr; }
  .gallery, .gallery--3 { grid-template-columns: repeat(2, 1fr); }
  .news-item { grid-template-columns: 1fr; }
  .news-item__media { max-width: 100%; }
  .field--row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .sec-head--row { align-items: flex-start; }
  .hero__inner { padding-block: clamp(52px, 12vw, 88px); }
  .btn { padding: 12px 22px; }
  .numbered, .nutri-list, .steps { grid-template-columns: 1fr; }
}

/* ---------- 打印 ---------- */
@media print {
  .site-header, .site-footer, .to-top, .cta-band, .filter, .nav-toggle { display: none !important; }
  body { background: #fff; }
  .section { padding-block: 18px; }
  a[href]::after { content: ""; }
}