/* ============================================================
   宁夏滩羊旗舰官网 · Design System
   暖金·大漠黄河风  |  黄河 · 大漠 · 盐池 · 黑头白羊  |  tanyang.org
   ============================================================ */

:root {
  /* 色板：大漠玄土 / 鎏金 / 羊脂白 / 朱砂 */
  --sand-950: #211408;
  --sand-900: #2d1c0d;
  --sand-800: #3c2813;
  --sand-700: #54381a;
  --sand-600: #6f4a22;

  --gold-600: #a5742f;
  --gold-500: #c9994a;
  --gold-400: #dbb269;
  --gold-300: #eacf99;
  --gold-200: #f3e0bb;
  --gold-100: #f7eac9;

  --red-600: #b3341f;
  --red-500: #c8432c;

  --cream: #f4eddb;
  --paper: #fdfaf2;
  --ink: #2a2117;
  --ink-soft: #6e5e47;
  --ink-faint: #9a8866;
  --line: #e9ddc3;

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC",
    "STSong", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC",
    "Microsoft YaHei", system-ui, sans-serif;

  --shadow-sm: 0 2px 10px rgba(62, 40, 19, .07);
  --shadow-md: 0 12px 40px rgba(62, 40, 19, .12);
  --shadow-lg: 0 24px 70px rgba(62, 40, 19, .18);

  --radius: 18px;
  --radius-sm: 10px;
  --container: 1200px;
  --nav-h: 84px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.75;
  font-size: 16px;
  letter-spacing: .01em;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; line-height: 1.35; color: var(--sand-900); }

::selection { background: var(--gold-500); color: #fff; }

/* ---------- 布局 ---------- */
.container { width: min(var(--container), 92%); margin-inline: auto; }

/* ---------- 头部导航 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .45s var(--ease), box-shadow .45s var(--ease), height .45s var(--ease);
}
.site-header .nav-wrap {
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo {
  width: 46px; height: 46px; flex: none;
  display: grid; place-items: center;
  background: radial-gradient(circle at 30% 25%, var(--gold-400), var(--gold-600));
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(165, 116, 47, .35);
  color: #fff;
}
.brand-name { font-family: var(--font-serif); font-size: 22px; font-weight: 700; color: var(--sand-900); letter-spacing: .06em; }
.brand-sub { font-size: 11px; letter-spacing: .34em; color: var(--ink-faint); text-transform: uppercase; margin-top: -2px; }

.main-nav ul { display: flex; gap: 8px; }
.main-nav a {
  display: block; padding: 10px 16px;
  font-size: 15px; color: var(--ink-soft); border-radius: 8px;
  transition: color .3s, background .3s;
  position: relative;
}
.main-nav a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px;
  height: 2px; background: var(--gold-500);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--sand-800); }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: 50px;
  background: linear-gradient(135deg, var(--red-500), var(--red-600));
  color: #fff;
  font-size: 14px; letter-spacing: .08em;
  box-shadow: 0 10px 26px rgba(179, 52, 31, .3);
  transition: transform .35s var(--ease), box-shadow .3s;
}
.nav-cta a:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(179, 52, 31, .38); }

/* 滚动后状态 */
.site-header.scrolled { background: rgba(244, 237, 219, .92); backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line), 0 10px 30px rgba(62,40,19,.08); }

/* 移动端汉堡 */
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--paper);
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--sand-900); border-radius: 2px; transition: .3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  background: var(--sand-950);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg .grain {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(ellipse at 20% 85%, rgba(200,153,74,.20), transparent 55%),
    radial-gradient(ellipse at 82% 18%, rgba(200,153,74,.16), transparent 50%),
    linear-gradient(180deg, #261808 0%, #2d1c0d 58%, #3c2813 100%);
}
.hero-bg .halo {
  position: absolute; width: 900px; height: 900px; border-radius: 50%;
  background: radial-gradient(circle, rgba(219,178,105,.22), transparent 62%);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  filter: blur(10px); animation: breathe 9s var(--ease) infinite;
}
@keyframes breathe { 0%,100% { opacity:.7; transform: translate(-50%,-50%) scale(1);} 50% { opacity:1; transform: translate(-50%,-50%) scale(1.08);} }

.hero-bg .hero-photo {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .5;
}
.hero-scene { position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: .82; }
.hero-scene svg { width: 100%; height: 100%; }

.hero-content { position: relative; z-index: 2; padding: 140px 0 120px; max-width: 720px; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--gold-300); font-size: 13px; letter-spacing: .4em;
  padding: 10px 20px; border: 1px solid rgba(219,178,105,.45); border-radius: 50px;
  margin-bottom: 30px;
}
.hero-kicker::before { content: ""; width: 26px; height: 1px; background: var(--gold-500); }
.hero h1 {
  color: var(--gold-100); font-size: clamp(40px, 6.2vw, 72px);
  font-weight: 700; letter-spacing: .06em; margin-bottom: 26px;
}
.hero h1 em { font-style: normal; color: var(--gold-400); }
.hero .lead {
  color: rgba(247, 234, 201, .85); font-size: 17px; line-height: 2;
  max-width: 560px; margin-bottom: 44px; letter-spacing: .04em;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 18px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 34px; border-radius: 50px;
  font-size: 15px; letter-spacing: .1em; font-weight: 500;
  transition: transform .35s var(--ease), box-shadow .35s, background .3s;
}
.btn-gold { background: linear-gradient(135deg, var(--gold-400), var(--gold-600)); color: #fff; box-shadow: 0 14px 34px rgba(165,116,47,.4); }
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 20px 44px rgba(165,116,47,.5); }
.btn-ghost { border: 1px solid rgba(234,207,153,.5); color: var(--gold-200); background: rgba(255,255,255,.04); }
.btn-ghost:hover { transform: translateY(-3px); background: rgba(255,255,255,.09); }

.hero-stats {
  position: relative; z-index: 2; margin-top: 64px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  border-top: 1px solid rgba(234,207,153,.28); padding-top: 34px;
}
.hero-stats .num { font-family: var(--font-serif); font-size: 34px; color: var(--gold-300); font-weight: 700; }
.hero-stats .lbl { font-size: 12.5px; color: rgba(247,234,201,.72); letter-spacing: .16em; margin-top: 4px; }

.scroll-hint {
  position: absolute; left: 50%; bottom: 34px; transform: translateX(-50%); z-index: 2;
  color: rgba(247,234,201,.55); font-size: 11px; letter-spacing: .3em;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.scroll-hint::after { content: ""; width: 1px; height: 46px; background: linear-gradient(var(--gold-400), transparent); animation: drip 2s var(--ease) infinite; }
@keyframes drip { 0%{transform:scaleY(0); transform-origin:top;} 60%{transform:scaleY(1); transform-origin:top;} 61%{transform-origin:bottom;} 100%{transform:scaleY(0); transform-origin:bottom;} }

/* ---------- 区块通用 ---------- */
.section { padding: 120px 0; position: relative; }
.section--paper { background: var(--paper); }
.section--dark { background: var(--sand-950); }
.section-head { max-width: 720px; margin: 0 auto 70px; text-align: center; }
.section-head .eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--gold-600); font-size: 12.5px; letter-spacing: .38em;
  margin-bottom: 18px;
}
.section-head .eyebrow::before, .section-head .eyebrow::after { content: ""; width: 30px; height: 1px; background: var(--gold-500); }
.section-head h2 { font-size: clamp(28px, 4vw, 44px); color: var(--sand-900); }
.section-head .sub { color: var(--ink-soft); margin-top: 18px; font-size: 15.5px; }
.section--dark .section-head h2 { color: var(--gold-100); }
.section--dark .section-head .sub { color: rgba(247,234,201,.72); }

/* ---------- 特性卡片 ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card {
  background: var(--paper); border-radius: var(--radius);
  padding: 44px 38px; position: relative; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 4px;
  background: linear-gradient(90deg, var(--gold-400), var(--red-500));
  opacity: 0; transition: opacity .4s;
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.card:hover::before { opacity: 1; }
.card .icon {
  width: 62px; height: 62px; border-radius: 16px; margin-bottom: 26px;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, var(--gold-500), var(--red-600));
  box-shadow: 0 10px 24px rgba(179,52,31,.28);
}
.card h3 { font-size: 21px; margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: 14.5px; line-height: 1.9; }

/* ---------- 故事 ---------- */
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.story-visual { position: relative; }
.story-visual .frame {
  border-radius: var(--radius); overflow: hidden; position: relative;
  box-shadow: var(--shadow-lg); background: var(--sand-900);
}
.story-visual .frame::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(33,20,8,.38));
}
.story-visual .badge {
  position: absolute; right: 24px; bottom: 24px; z-index: 4;
  background: rgba(253,250,242,.94); padding: 16px 22px; border-radius: 14px;
  font-family: var(--font-serif); font-size: 14px; color: var(--sand-900);
  box-shadow: var(--shadow-md);
}
.story-copy h2 { font-size: clamp(28px, 3.6vw, 40px); margin-bottom: 26px; }
.story-copy h2 span { color: var(--gold-600); }
.story-copy p { color: var(--ink-soft); margin-bottom: 18px; font-size: 15.5px; }
.story-points { margin-top: 30px; display: grid; gap: 14px; }
.story-points li {
  display: flex; gap: 14px; align-items: flex-start;
  font-size: 15px; color: var(--ink);
}
.story-points li::before {
  content: "◆"; color: var(--gold-500); font-size: 11px; margin-top: 7px;
}

/* 真实照片图层（占位即显，缺失时回落到内嵌插画） */
.ph { position: absolute; inset: 0; z-index: 2; }
.ph img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover;
}
.ph .ph-svg { position: absolute; inset: 0; }
.ph .ph-svg svg { width: 100%; height: 100%; }

/* ---------- 产品 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pcard {
  background: var(--paper); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.pcard:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.pcard .media {
  aspect-ratio: 4/3; position: relative; overflow: hidden;
  background: linear-gradient(150deg, var(--sand-700), var(--sand-950));
}
.pcard .media svg { width: 100%; height: 100%; }
.pcard .media > svg { position: absolute; inset: 0; z-index: 1; }
.pcard .media img { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; object-fit: cover; }
.pcard .tag {
  position: absolute; top: 16px; left: 16px; z-index: 4;
  background: rgba(253,250,242,.94); color: var(--red-600);
  font-size: 11.5px; letter-spacing: .2em; padding: 6px 14px; border-radius: 50px;
}
.pcard .body { padding: 30px 30px 34px; }
.pcard h3 { font-size: 21px; margin-bottom: 10px; }
.pcard p { color: var(--ink-soft); font-size: 14px; line-height: 1.85; margin-bottom: 20px; }
.pcard .meta {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px dashed var(--line); padding-top: 18px;
}
.pcard .price { font-family: var(--font-serif); color: var(--gold-600); font-size: 18px; font-weight: 700; }
.pcard .price small { font-size: 12px; color: var(--ink-faint); font-family: var(--font-sans); font-weight: 400; margin-left: 4px; }
.pcard .more { font-size: 13.5px; color: var(--red-600); letter-spacing: .08em; display: inline-flex; align-items: center; gap: 6px; transition: gap .3s; }
.pcard .more:hover { gap: 12px; }

/* ---------- 数据 / 荣誉 ---------- */
.honor-band {
  background: linear-gradient(160deg, var(--sand-900), var(--sand-700));
  border-radius: calc(var(--radius) + 10px);
  padding: 70px 60px; color: #fff;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.honor-band::before {
  content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%;
  background: radial-gradient(circle, rgba(219,178,105,.24), transparent 65%);
  top: -240px; right: -160px;
}
.honor-band .item { position: relative; z-index: 1; text-align: center; }
.honor-band .big { font-family: var(--font-serif); font-size: 44px; color: var(--gold-300); font-weight: 700; }
.honor-band .small { font-size: 13px; letter-spacing: .18em; color: rgba(255,255,255,.75); margin-top: 8px; }
.honor-band .divider { width: 1px; background: rgba(255,255,255,.14); }

/* ---------- 非遗 / 文化时间线 ---------- */
.timeline { position: relative; max-width: 860px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: var(--line); transform: translateX(-50%); }
.t-item { position: relative; width: 50%; padding: 0 46px 60px; }
.t-item:nth-child(odd) { left: 0; text-align: right; }
.t-item:nth-child(even) { left: 50%; text-align: left; }
.t-item .dot {
  position: absolute; top: 4px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--gold-500); box-shadow: 0 0 0 6px rgba(201,153,74,.2);
}
.t-item:nth-child(odd) .dot { right: -7px; }
.t-item:nth-child(even) .dot { left: -7px; }
.t-item .year { font-family: var(--font-serif); font-size: 15px; color: var(--gold-600); letter-spacing: .1em; font-weight: 700; }
.t-item h3 { font-size: 20px; margin: 8px 0 10px; }
.t-item p { color: var(--ink-soft); font-size: 14.5px; }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.step {
  background: rgba(244,237,219,.06); border: 1px solid rgba(234,207,153,.22);
  border-radius: var(--radius); padding: 38px 30px; position: relative;
  transition: transform .45s var(--ease), border-color .4s;
}
.step:hover { transform: translateY(-8px); border-color: rgba(219,178,105,.65); }
.step .n {
  font-family: var(--font-serif); font-size: 54px; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px rgba(219,178,105,.6);
  margin-bottom: 20px; display: block;
}
.step h3 { color: var(--gold-300); font-size: 18px; margin-bottom: 10px; }
.step p { color: rgba(247,234,201,.72); font-size: 13.5px; }

/* ---------- 视频 ---------- */
.video-wrap { max-width: 1000px; margin: 0 auto; }
.video-slot {
  position: relative; border-radius: calc(var(--radius) + 8px); overflow: hidden;
  background: var(--sand-900); box-shadow: var(--shadow-lg);
  aspect-ratio: 16/9;
}
.video-slot > svg, .video-slot .ph, .video-slot video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.video-slot video { z-index: 3; }
.video-slot .ph { z-index: 1; }
.video-slot > svg { z-index: 0; }
.video-cap { text-align: center; margin-top: 20px; color: var(--ink-soft); font-size: 14px; letter-spacing: .08em; }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.ncard {
  background: var(--paper); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.ncard:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.ncard .date {
  padding: 26px 30px 10px; display: flex; gap: 14px; align-items: baseline;
}
.ncard .date b { font-family: var(--font-serif); font-size: 38px; color: var(--gold-600); line-height: 1; }
.ncard .date span { font-size: 12px; color: var(--ink-faint); letter-spacing: .1em; }
.ncard .body { padding: 8px 30px 30px; }
.ncard h3 { font-size: 18px; margin-bottom: 10px; line-height: 1.5; }
.ncard p { color: var(--ink-soft); font-size: 13.5px; }
.ncard .body a { color: var(--red-600); font-size: 13px; letter-spacing: .08em; display: inline-flex; gap: 6px; margin-top: 14px; }

/* ---------- 引用 / 引言 ---------- */
.quote-band { text-align: center; }
.quote-band .mark { font-family: var(--font-serif); font-size: 90px; color: var(--gold-500); line-height: .6; opacity: .6; }
.quote-band blockquote {
  font-family: var(--font-serif); font-size: clamp(20px, 3vw, 30px);
  color: var(--sand-900); line-height: 1.9; max-width: 880px; margin: 8px auto 26px;
}
.quote-band cite { font-style: normal; color: var(--ink-faint); font-size: 14px; letter-spacing: .2em; }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden;
  background: linear-gradient(140deg, var(--sand-900), var(--sand-700));
  border-radius: calc(var(--radius) + 10px);
  padding: 90px 60px; text-align: center; color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta::before {
  content: ""; position: absolute; width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(219,178,105,.3), transparent 60%);
  top: -320px; left: 50%; transform: translateX(-50%);
}
.cta h2 { color: var(--gold-100); font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 16px; position: relative; }
.cta p { color: rgba(247,234,201,.82); max-width: 560px; margin: 0 auto 40px; position: relative; }
.cta .btn { position: relative; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--sand-950); color: rgba(247,234,201,.74); padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 50px; padding-bottom: 60px; }
.site-footer h4 { color: var(--gold-300); font-size: 15px; letter-spacing: .2em; margin-bottom: 22px; }
.site-footer .brand-name { color: var(--gold-100); font-size: 24px; }
.site-footer .brand-desc { margin: 16px 0 22px; font-size: 14px; line-height: 2; color: rgba(247,234,201,.66); }
.footer-links li { margin-bottom: 12px; }
.footer-links a { font-size: 14px; color: rgba(247,234,201,.74); transition: color .3s, padding-left .3s; }
.footer-links a:hover { color: var(--gold-400); padding-left: 6px; }
.footer-contact li { display: flex; gap: 12px; margin-bottom: 14px; font-size: 14px; }
.footer-contact .ic { color: var(--gold-500); flex: none; }
.footer-bottom {
  border-top: 1px solid rgba(234,207,153,.16);
  padding: 26px 0; font-size: 13px; color: rgba(247,234,201,.52);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer-bottom a { color: var(--gold-400); }

/* ---------- 页内横幅 ---------- */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + 90px) 0 90px;
  background: var(--sand-950); overflow: hidden; text-align: center;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 15% 120%, rgba(219,178,105,.2), transparent 50%),
    radial-gradient(ellipse at 85% -20%, rgba(179,52,31,.22), transparent 55%);
}
.page-hero h1 { color: var(--gold-100); font-size: clamp(32px, 5vw, 54px); position: relative; letter-spacing: .08em; }
.page-hero .crumb { position: relative; color: rgba(247,234,201,.62); font-size: 13px; letter-spacing: .3em; margin-bottom: 20px; }
.page-hero .crumb a { color: var(--gold-400); }
.page-hero p { position: relative; color: rgba(247,234,201,.76); max-width: 640px; margin: 22px auto 0; font-size: 15.5px; }

/* ---------- 通用页面元素 ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.info-row { display: flex; justify-content: space-between; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.info-row span { color: var(--ink-faint); }
.info-row b { color: var(--sand-900); font-family: var(--font-serif); font-weight: 600; }

.badge-tag {
  display: inline-block; padding: 8px 18px; border-radius: 50px;
  border: 1px solid var(--gold-400); color: var(--gold-600);
  font-size: 12.5px; letter-spacing: .2em; margin: 4px 6px 4px 0;
  background: rgba(201,153,74,.08);
}

/* 面板 */
.panel {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 50px; box-shadow: var(--shadow-sm);
}
.panel h3 { font-size: 24px; margin-bottom: 18px; }
.panel h3::before { content: "◆ "; color: var(--gold-500); font-size: 12px; vertical-align: 3px; margin-right: 4px; }
.panel p, .panel li { color: var(--ink-soft); font-size: 15px; line-height: 2; }
.panel ul { margin-top: 14px; display: grid; gap: 10px; }
.panel ul li { display: flex; gap: 12px; }
.panel ul li::before { content: "◆"; color: var(--gold-500); font-size: 10px; margin-top: 9px; }

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; letter-spacing: .12em; color: var(--sand-800); }
.field input, .field textarea, .field select {
  padding: 15px 18px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--cream); font: inherit; color: var(--ink); transition: border-color .3s, box-shadow .3s;
  width: 100%;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--gold-500);
  box-shadow: 0 0 0 4px rgba(201,153,74,.15);
}
.field textarea { min-height: 150px; resize: vertical; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 10px; margin-top: 60px; }
.pagination a, .pagination span {
  width: 44px; height: 44px; display: grid; place-items: center;
  border-radius: 10px; border: 1px solid var(--line); background: var(--paper);
  font-size: 14px; color: var(--ink-soft); transition: .3s;
}
.pagination a:hover, .pagination span.current { background: var(--sand-900); color: var(--gold-300); border-color: var(--sand-900); }

/* ---------- 进场动画 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .12s; }
.reveal.d2 { transition-delay: .24s; }
.reveal.d3 { transition-delay: .36s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .features, .product-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .story-grid { grid-template-columns: 1fr; gap: 46px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .honor-band { grid-template-columns: repeat(2, 1fr); }
  .honor-band .divider { display: none; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 84px 0; }
  :root { --nav-h: 70px; }
  .main-nav {
    position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
    background: rgba(244,237,219,.98); backdrop-filter: blur(16px);
    transform: translateX(100%); transition: transform .45s var(--ease);
    display: flex; align-items: center; justify-content: center;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 8px; text-align: center; }
  .main-nav a { font-size: 18px; padding: 14px 30px; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .features, .product-grid, .news-grid, .steps, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .timeline::before { left: 10px; }
  .t-item, .t-item:nth-child(odd), .t-item:nth-child(even) { width: 100%; left: 0; text-align: left; padding: 0 0 50px 46px; }
  .t-item .dot, .t-item:nth-child(odd) .dot, .t-item:nth-child(even) .dot { left: 3px; right: auto; }
  .honor-band { padding: 46px 30px; }
  .cta { padding: 60px 30px; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .scroll-hint { display: none; }
}