/* ============================================================
   小布香官网 · 设计系统
   生态现代风 / 茶山绿 + 米白 + 墨色 + 金线点缀
   ============================================================ */

:root {
  --green-950: #0f2b18;
  --green-900: #16371f;
  --green-800: #1e4a2a;
  --green-700: #2d6a3f;
  --green-600: #3a7d4e;
  --green-500: #4c8c5c;
  --green-100: #e3ecdf;
  --gold: #b28a4a;
  --gold-light: #d4b378;
  --cream: #f7f4ec;
  --paper: #fffef9;
  --ink: #22301f;
  --ink-soft: #5a655a;
  --line: #e4dfd2;
  --shadow: 0 18px 50px -18px rgba(22, 55, 31, 0.25);
  --serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
  --w: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: var(--w); margin: 0 auto; padding: 0 28px; }

/* ---------- 顶部公告条 ---------- */
.topbar {
  background: var(--green-950);
  color: rgba(247, 244, 236, 0.85);
  font-size: 13px;
  letter-spacing: 0.06em;
  position: relative;
  z-index: 60;
}
.topbar .container {
  display: flex; justify-content: space-between; align-items: center;
  min-height: 36px; gap: 16px;
}
.topbar a { color: var(--gold-light); }
.topbar .tb-right { display: flex; gap: 18px; white-space: nowrap; }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247, 244, 236, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s, background .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 10px 30px -18px rgba(22,55,31,.28); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 52px; width: auto; }
.brand .brand-name { line-height: 1.25; }
.brand .brand-name b { font-family: var(--serif); font-size: 21px; font-weight: 900; letter-spacing: .14em; color: var(--green-800); display: block; }
.brand .brand-name span { font-size: 10px; letter-spacing: .28em; color: var(--gold); text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 10px 16px; font-size: 15px; color: var(--ink);
  position: relative; letter-spacing: .08em; white-space: nowrap;
}
.nav-links a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px;
  height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: left;
  transition: transform .25s;
}
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--green-800); font-weight: 600; }
.nav-cta {
  margin-left: 14px; padding: 10px 22px !important;
  background: var(--green-800); color: var(--cream) !important;
  border-radius: 999px; letter-spacing: .1em;
  transition: background .25s;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--green-700); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--green-900); margin: 6px 0; transition: .3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 88vh;
  display: flex; align-items: center;
  color: var(--cream);
  background: var(--green-950);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .82; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(15,43,24,.78) 8%, rgba(15,43,24,.42) 46%, rgba(15,43,24,.12) 78%);
}
.hero .container { position: relative; z-index: 2; padding-top: 60px; padding-bottom: 140px; }
.hero-kicker {
  font-size: 12px; letter-spacing: .42em; text-transform: uppercase;
  color: var(--gold-light); margin-bottom: 26px;
  display: flex; align-items: center; gap: 14px;
}
.hero-kicker::before { content: ""; width: 46px; height: 1px; background: var(--gold-light); }
.hero h1 {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(40px, 6.2vw, 72px);
  line-height: 1.28; letter-spacing: .06em;
  max-width: 15em;
  text-shadow: 0 4px 30px rgba(0,0,0,.35);
}
.hero p {
  margin-top: 26px; max-width: 34em; font-size: clamp(15px, 1.4vw, 18px);
  color: rgba(247,244,236,.92); letter-spacing: .05em;
}
.hero-actions { margin-top: 44px; display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 34px; border-radius: 999px;
  font-size: 15px; letter-spacing: .14em; cursor: pointer;
  border: 1px solid transparent; transition: all .28s;
}
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 12px 30px -12px rgba(178,138,74,.7); }
.btn-ghost { border-color: rgba(247,244,236,.55); color: var(--cream); }
.btn-ghost:hover { background: rgba(247,244,236,.12); border-color: var(--cream); }
.btn-green { background: var(--green-800); color: var(--cream); }
.btn-green:hover { background: var(--green-700); transform: translateY(-2px); }
.btn-outline { border-color: var(--green-800); color: var(--green-800); }
.btn-outline:hover { background: var(--green-800); color: var(--cream); }

/* ---------- 信任条 ---------- */
.trustbar { background: var(--green-900); color: var(--cream); position: relative; z-index: 5; }
.trustbar .container {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
  padding-top: 26px; padding-bottom: 26px;
}
.trust-item { display: flex; align-items: center; gap: 14px; padding: 6px 10px; }
.trust-item .t-ico {
  width: 44px; height: 44px; flex: none; border-radius: 50%;
  border: 1px solid rgba(212,179,120,.5); color: var(--gold-light);
  display: grid; place-items: center; font-size: 19px;
}
.trust-item b { display: block; font-size: 15px; letter-spacing: .06em; }
.trust-item span { font-size: 12px; color: rgba(247,244,236,.62); letter-spacing: .04em; }

/* ---------- 区块头 ---------- */
section.sec { padding: 104px 0; }
section.sec.tight { padding: 72px 0; }
.sec-head { max-width: 640px; margin-bottom: 56px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  font-size: 11px; letter-spacing: .38em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 14px; display: block;
}
.sec-head h2, .sec-title {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(28px, 3.4vw, 40px); color: var(--green-900);
  letter-spacing: .08em; line-height: 1.4;
}
.sec-head .sub { margin-top: 16px; color: var(--ink-soft); font-size: 15.5px; }
.gold-rule { width: 56px; height: 2px; background: var(--gold); margin-top: 22px; }
.sec-head.center .gold-rule { margin-left: auto; margin-right: auto; }

/* ---------- 数字 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 30px 26px; text-align: center; }
.stat b { font-family: var(--serif); font-size: 42px; color: var(--green-800); font-weight: 900; white-space: nowrap; }
.stat b i { font-style: normal; font-size: 18px; margin-left: 4px; color: var(--gold); }
.stat span { display: block; margin-top: 8px; color: var(--ink-soft); font-size: 14px; letter-spacing: .1em; }

/* ---------- 图文分栏 ---------- */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.split.rev { grid-template-columns: 1fr 1.05fr; }
.split .pic { position: relative; }
.split .pic img { border-radius: 16px; width: 100%; box-shadow: var(--shadow); }
.split .pic .pic-badge {
  position: absolute; left: -18px; bottom: -18px;
  background: var(--green-900); color: var(--cream);
  font-family: var(--serif); letter-spacing: .2em;
  padding: 18px 26px; border-radius: 4px; font-size: 15px;
  border: 1px solid rgba(212,179,120,.4);
}
.split h3 { font-family: var(--serif); font-size: 27px; color: var(--green-900); letter-spacing: .08em; margin: 6px 0 20px; }
.split p { color: var(--ink-soft); margin-bottom: 14px; }

/* ---------- 卡片网格 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

/* 产品卡 */
.p-card {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 16px; overflow: hidden; position: relative;
  transition: transform .3s, box-shadow .3s;
  display: flex; flex-direction: column;
}
.p-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.p-card .p-img { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--green-100); }
.p-card .p-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.p-card:hover .p-img img { transform: scale(1.05); }
.p-card .p-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.p-card h4 { font-family: var(--serif); font-size: 19px; color: var(--green-900); letter-spacing: .05em; }
.p-card .p-spec { font-size: 13.5px; color: var(--ink-soft); }
.p-card .p-tag {
  position: absolute; top: 14px; left: 14px; z-index: 3;
  background: rgba(22,55,31,.85); color: var(--gold-light);
  font-size: 12px; letter-spacing: .12em; padding: 5px 13px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.p-card .p-ask {
  margin-top: auto; padding-top: 12px; font-size: 13.5px; color: var(--gold);
  letter-spacing: .16em; display: inline-flex; align-items: center; gap: 6px;
}

/* 示意图角标（AI 占位图必须带） */
.sample-badge {
  position: absolute; right: 12px; bottom: 12px; z-index: 3;
  background: rgba(34,48,31,.62); color: rgba(255,254,249,.92);
  font-size: 11px; letter-spacing: .08em; padding: 4px 10px; border-radius: 999px;
  border: 1px solid rgba(255,254,249,.25); backdrop-filter: blur(3px);
  pointer-events: none;
}
img[data-sample] { position: relative; }

/* 基地/特色卡 */
.f-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; transition: transform .3s, box-shadow .3s;
}
.f-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.f-card .f-img { aspect-ratio: 16/10; overflow: hidden; position: relative; background: var(--green-100); }
.f-card .f-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.f-card:hover .f-img img { transform: scale(1.05); }
.f-card .f-body { padding: 24px 26px 28px; }
.f-card h4 { font-family: var(--serif); font-size: 20px; color: var(--green-900); letter-spacing: .06em; margin-bottom: 10px; }
.f-card p { font-size: 14.5px; color: var(--ink-soft); }

/* 图标特色卡 */
.i-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 16px;
  padding: 30px 26px; transition: transform .3s, box-shadow .3s;
}
.i-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.i-card .ico {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px;
  background: linear-gradient(135deg, var(--green-800), var(--green-600));
  color: var(--cream); display: grid; place-items: center; font-size: 24px;
}
.i-card h4 { font-family: var(--serif); font-size: 18.5px; color: var(--green-900); margin-bottom: 8px; letter-spacing: .05em; }
.i-card p { font-size: 14px; color: var(--ink-soft); }

/* ---------- 新闻 ---------- */
.news-list { display: flex; flex-direction: column; gap: 18px; }
.news-item {
  display: grid; grid-template-columns: 130px 1fr auto; gap: 28px; align-items: center;
  background: var(--paper); border: 1px solid var(--line); border-radius: 14px;
  padding: 24px 30px; transition: transform .25s, box-shadow .25s;
}
.news-item:hover { transform: translateX(6px); box-shadow: var(--shadow); }
.news-date { text-align: center; border-right: 1px solid var(--line); padding-right: 24px; }
.news-date b { display: block; font-family: var(--serif); font-size: 30px; color: var(--green-800); line-height: 1.1; }
.news-date span { font-size: 12.5px; color: var(--ink-soft); letter-spacing: .1em; }
.news-item h4 { font-size: 17px; color: var(--ink); font-weight: 600; letter-spacing: .03em; line-height: 1.6; }
.news-item p { font-size: 13.5px; color: var(--ink-soft); margin-top: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item .go { color: var(--gold); font-size: 20px; }

/* 新闻详情 */
.article { max-width: 820px; margin: 0 auto; }
.article-head { text-align: center; margin-bottom: 46px; }
.article-head h1 { font-family: var(--serif); font-size: clamp(24px, 3vw, 34px); color: var(--green-900); line-height: 1.5; letter-spacing: .05em; }
.article-head .meta { margin-top: 18px; color: var(--ink-soft); font-size: 13.5px; letter-spacing: .12em; }
.article-head .meta i { font-style: normal; margin: 0 12px; color: var(--gold); }
.article-body { font-size: 16.5px; line-height: 2.1; color: #37402f; }
.article-body p { margin-bottom: 20px; text-indent: 2em; }
.article-body p.noindent { text-indent: 0; }
.article-body .src-note {
  margin-top: 40px; padding: 16px 22px; background: var(--green-100);
  border-left: 3px solid var(--gold); font-size: 13.5px; color: var(--ink-soft);
  border-radius: 0 10px 10px 0;
}
.article-nav { display: flex; justify-content: space-between; margin-top: 54px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 14px; }
.article-nav a { color: var(--green-800); }
.article-nav a:hover { color: var(--gold); }

/* ---------- 位置与到达 ---------- */
.loc-wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 52px; align-items: center; }
.loc-map {
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.loc-map img { width: 100%; display: block; }
.loc-item { display: flex; gap: 16px; align-items: flex-start; padding: 15px 0; border-bottom: 1px dashed var(--line); }
.loc-item:last-of-type { border-bottom: 0; }
.loc-item .ico {
  width: 46px; height: 46px; flex: none; border-radius: 12px;
  background: linear-gradient(135deg, var(--green-800), var(--green-600));
  color: var(--cream); display: grid; place-items: center;
  font-family: var(--serif); font-size: 19px;
}
.loc-item h5 { font-family: var(--serif); font-size: 16.5px; color: var(--green-900); letter-spacing: .06em; margin-bottom: 3px; }
.loc-item p { font-size: 14px; color: var(--ink-soft); line-height: 1.8; }

/* ---------- 礼盒鉴赏页（滚动开盒） ---------- */
.show-hero { padding: 150px 0 40px; text-align: center; }
.show-hero h1 { font-family: var(--serif); font-weight: 900; font-size: clamp(30px, 4.4vw, 52px); color: var(--green-900); letter-spacing: .1em; }
.show-hero p { margin-top: 18px; color: var(--ink-soft); max-width: 36em; margin-left: auto; margin-right: auto; }
.show-hero .kicker { display: block; }

.stage-wrap { position: relative; height: 430vh; }
.stage {
  position: sticky; top: 76px; height: calc(100vh - 76px);
  overflow: hidden; background:
    radial-gradient(1200px 600px at 50% 30%, #fffdf6 0%, var(--cream) 70%);
}
.scene { position: absolute; inset: 0; display: grid; place-items: center; opacity: 0; pointer-events: none; }
.s1 { z-index: 3; }
.s2 { z-index: 2; }
.s3, .s4 { z-index: 4; }
.scene img {
  width: min(86%, 1080px); max-height: 74%; object-fit: contain;
  -webkit-mask-image: radial-gradient(115% 115% at 50% 50%, #000 62%, transparent 97%);
  mask-image: radial-gradient(115% 115% at 50% 50%, #000 62%, transparent 97%);
  background: transparent center/cover no-repeat;
}
.scene.active { pointer-events: auto; }
.s4 { transition: opacity .5s ease; background: rgba(247, 244, 236, .78); }
.stage.opened .s3 .click-hint { opacity: 0 !important; }
.scene.missing img { display: none; }
.scene.missing::after {
  content: "场景示意图 · 生成中";
  font-family: var(--serif); letter-spacing: .3em; color: var(--gold);
  border: 1px dashed rgba(178,138,74,.5); padding: 18px 30px; border-radius: 12px;
}

/* S1：闭合盒（盒身+可旋转盒盖两层来自同一张图） */
.s1 .s1-body, .s1 .s1-lid { position: absolute; left: 50%; top: 50%; width: min(86%, 1080px); max-height: 74%; transform: translate(-50%, -50%); }
.s1 .s1-body img, .s1 .s1-lid img { width: 100%; height: auto; max-height: 74vh; object-fit: contain; }
.s1 .s1-lid { transform-origin: 50% var(--seam, 58%); will-change: transform, opacity; }
.s1 .s1-lid img { clip-path: inset(0 0 calc(100% - var(--seam, 58%)) 0); }
.s1 .s1-body img { clip-path: inset(var(--seam, 58%) 0 0 0); }

/* 场景切换由 JS 驱动 opacity/transform；此处只管排版 */
.caption {
  position: absolute; left: 8%; top: 18%; max-width: 20em; z-index: 6;
  opacity: 0; transform: translateY(18px); transition: none;
}
.caption .kicker { margin-bottom: 10px; }
.caption h3 { font-family: var(--serif); font-weight: 900; font-size: clamp(22px, 2.6vw, 34px); color: var(--green-900); letter-spacing: .1em; line-height: 1.5; }
.caption p { margin-top: 12px; color: var(--ink-soft); font-size: 15px; }
.caption.right { left: auto; right: 8%; text-align: right; }

.progress-rail {
  position: absolute; right: 26px; z-index: 6; top: 50%; transform: translateY(-50%);
  height: 200px; width: 2px; background: var(--line); border-radius: 2px;
}
.progress-rail .fill { position: absolute; inset: 0; background: var(--gold); transform-origin: top; transform: scaleY(0); border-radius: 2px; }
.progress-rail .dot { position: absolute; left: 50%; width: 8px; height: 8px; border-radius: 50%; background: var(--cream); border: 1px solid var(--gold); transform: translate(-50%, -50%); transition: background .3s; }
.progress-rail .dot.on { background: var(--gold); }

.click-hint {
  position: absolute; left: 50%; bottom: 12%; z-index: 6; transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 22px; border-radius: 999px;
  background: rgba(22, 55, 31, .82); color: var(--gold-light);
  font-size: 14px; letter-spacing: .18em; backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none;
}
.click-hint::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold-light); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(212,179,120,.7);} 50% { box-shadow: 0 0 0 8px rgba(212,179,120,0);} }

/* S4：开罐茶叶 + 标注系统 */
.s4 .s4-inner { position: relative; width: min(86%, 1080px); height: 74vh; display: grid; place-items: center; }
.s4 .leaves {
  width: min(64vh, 86%, 640px); aspect-ratio: 1; border-radius: 50%;
  overflow: hidden; position: relative;
  clip-path: circle(0% at 50% 50%); transition: clip-path 1.1s cubic-bezier(.6,0,.2,1);
  box-shadow: var(--shadow); border: 6px solid rgba(22,55,31,.12);
}
.stage.opened .s4 .leaves { clip-path: circle(50% at 50% 50%); }
.s4 .leaves img { width: 100%; height: 100%; object-fit: cover; }
.s4 .tin-ring {
  position: absolute; width: min(64vh, 86%, 640px); aspect-ratio: 1; border-radius: 50%;
  border: 1px solid rgba(178, 138, 74, .0); transition: border-color .8s .5s;
}
.stage.opened .s4 .tin-ring { border-color: rgba(178, 138, 74, .55); }

.callout { position: absolute; opacity: 0; transform: translateY(10px); transition: opacity .6s, transform .6s; pointer-events: none; }
.stage.opened .s4 { opacity: 1; }
.stage.opened .s4 .callout { opacity: 1; transform: none; }
.stage.opened .s4 .c1 { transition-delay: .7s; }
.stage.opened .s4 .c2 { transition-delay: .95s; }
.stage.opened .s4 .c3 { transition-delay: 1.2s; }
.stage.opened .s4 .c4 { transition-delay: 1.45s; }
.stage.opened .s4 .spec-chip { opacity: 1; transform: translate(-50%, 0); transition-delay: 1.7s; }
.callout .c-line { display: block; height: 1px; width: 74px; background: linear-gradient(90deg, var(--gold), transparent); margin-bottom: 8px; }
.callout.tr .c-line, .callout.br .c-line { background: linear-gradient(270deg, var(--gold), transparent); }
.callout h5 { font-family: var(--serif); font-size: 17px; color: var(--green-900); letter-spacing: .12em; margin-bottom: 2px; }
.callout p { font-size: 13px; color: var(--ink-soft); max-width: 15em; }
.callout.tr, .callout.br { text-align: right; }
.callout.tr .c-line, .callout.br .c-line { margin-left: auto; }
.spec-chip {
  position: absolute; opacity: 0; transform: translateY(10px); transition: opacity .6s, transform .6s;
  padding: 9px 20px; border-radius: 999px; background: var(--green-900);
  color: var(--gold-light); font-size: 13.5px; letter-spacing: .18em;
}
.c-tl { left: 6%; top: 16%; } .c-tr { right: 6%; top: 18%; }
.c-bl { left: 7%; bottom: 20%; } .c-br { right: 7%; bottom: 18%; }
.spec-chip { left: 50%; bottom: 7%; transform: translate(-50%, 10px); }


/* 鉴赏页特性区与入口 */
.showcase-link {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 20px;
  font-family: var(--serif); color: var(--gold); letter-spacing: .22em; font-size: 16px;
  border-bottom: 1px solid rgba(178,138,74,.5); padding-bottom: 4px; transition: color .3s;
}
.showcase-link:hover { color: var(--green-800); }

@media (max-width: 720px) {
  .stage { top: 76px; height: calc(100vh - 76px); }
  .stage-wrap { height: 380vh; }
  .caption { left: 6% !important; right: 6% !important; top: 6% !important; max-width: none; text-align: left !important; }
  .caption h3 { font-size: 20px; }
  .caption p { font-size: 13.5px; }
  .callout h5 { font-size: 13.5px; } .callout p { font-size: 11.5px; max-width: 11em; }
  .callout .c-line { width: 40px; }
  .c-tl { left: 4%; top: 20%; } .c-tr { right: 4%; top: 23%; }
  .c-bl { left: 4%; bottom: 24%; } .c-br { right: 4%; bottom: 26%; }
  .progress-rail { right: 12px; height: 140px; }
  .click-hint { font-size: 12.5px; letter-spacing: .12em; }
}
@media (prefers-reduced-motion: reduce) {
  .stage { position: static; height: auto; overflow: visible; display: flex; flex-direction: column; gap: 30px; padding: 20px 6%; }
  .scene, .caption, .callout, .spec-chip, .click-hint { position: static; opacity: 1 !important; transform: none !important; }
  .s4 .leaves { clip-path: circle(50% at 50% 50%); }
  .progress-rail { display: none; }
  .stage-wrap { height: auto; }
}

/* ---------- 检测报告表 ---------- */
.report-wrap { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.report-shot { border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); position: relative; }
.r-table { width: 100%; border-collapse: collapse; background: var(--paper); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); }
.r-table th, .r-table td { padding: 13px 20px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--line); }
.r-table th { background: var(--green-900); color: var(--cream); font-weight: 600; letter-spacing: .1em; }
.r-table tr:last-child td { border-bottom: 0; }
.r-table td b { color: var(--green-800); font-family: var(--serif); }
.r-table .r-note { font-size: 12.5px; color: var(--ink-soft); }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: step; }
.step { text-align: center; padding: 26px 12px; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; position: relative; transition: transform .25s; }
.step:hover { transform: translateY(-5px); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--serif); font-size: 26px; color: var(--gold);
  display: block; margin-bottom: 10px; font-weight: 900;
}
.step h5 { font-size: 16px; color: var(--green-900); letter-spacing: .14em; margin-bottom: 6px; }
.step p { font-size: 12.5px; color: var(--ink-soft); }

/* ---------- 招商 CTA ---------- */
.cta-band { background: linear-gradient(120deg, var(--green-950), var(--green-800)); color: var(--cream); position: relative; overflow: hidden; }
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(700px 300px at 85% 20%, rgba(178,138,74,.18), transparent 60%);
}
.cta-band .container { position: relative; padding-top: 84px; padding-bottom: 84px; text-align: center; }
.cta-band h2 { font-family: var(--serif); font-size: clamp(26px, 3.4vw, 38px); letter-spacing: .12em; font-weight: 900; }
.cta-band p { margin: 18px auto 34px; max-width: 36em; color: rgba(247,244,236,.85); }

/* ---------- 页内 hero ---------- */
.page-hero {
  position: relative; padding: 150px 0 110px; color: var(--cream);
  background: var(--green-950); overflow: hidden;
}
.page-hero .ph-bg { position: absolute; inset: 0; }
.page-hero .ph-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .38; }
.page-hero .ph-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,43,24,.55), rgba(15,43,24,.82)); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { font-family: var(--serif); font-weight: 900; font-size: clamp(30px, 4vw, 46px); letter-spacing: .12em; }
.page-hero .crumb { margin-bottom: 16px; font-size: 12px; letter-spacing: .3em; text-transform: uppercase; color: var(--gold-light); }
.page-hero p { margin-top: 14px; color: rgba(247,244,236,.8); max-width: 40em; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 56px; }
.c-card { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 34px 30px; text-align: center; }
.c-card .ico { font-size: 30px; margin-bottom: 14px; }
.c-card h4 { font-family: var(--serif); font-size: 19px; color: var(--green-900); margin-bottom: 10px; letter-spacing: .08em; }
.c-card p { color: var(--ink-soft); font-size: 15px; }
.c-card a { color: var(--green-800); font-weight: 600; }
.c-card a:hover { color: var(--gold); }
.qr-card { max-width: 420px; margin: 0 auto; text-align: center; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 40px; }
.qr-card img { width: 220px; margin: 18px auto; border-radius: 12px; box-shadow: var(--shadow); }

/* ---------- 悬浮联系 ---------- */
.float-contact { position: fixed; right: 22px; bottom: 26px; z-index: 80; display: flex; flex-direction: column; gap: 12px; }
.float-contact .fc-btn {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center;
  background: var(--green-800); color: var(--cream); font-size: 22px;
  box-shadow: 0 14px 30px -10px rgba(22,55,31,.5); cursor: pointer;
  border: 1px solid rgba(212,179,120,.35); transition: transform .25s, background .25s;
  position: relative;
}
.float-contact .fc-btn:hover { transform: translateY(-3px); background: var(--green-700); }
.float-contact .fc-btn.fc-wechat { background: var(--gold); }
.float-contact .fc-wechat .qr-pop {
  position: absolute; right: 66px; top: 50%; transform: translateY(-50%) scale(.94);
  width: 190px; background: var(--paper); border-radius: 14px; padding: 14px;
  box-shadow: var(--shadow); opacity: 0; visibility: hidden; transition: all .25s;
  border: 1px solid var(--line); text-align: center;
}
.float-contact .fc-wechat:hover .qr-pop { opacity: 1; visibility: visible; transform: translateY(-50%) scale(1); }
.float-contact .qr-pop img { border-radius: 10px; }
.float-contact .qr-pop p { font-size: 12px; color: var(--ink-soft); margin-top: 8px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--green-950); color: rgba(247,244,236,.72); margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px; padding-top: 74px; padding-bottom: 54px; }
.site-footer h5 { font-family: var(--serif); color: var(--cream); font-size: 17px; letter-spacing: .14em; margin-bottom: 20px; }
.site-footer .f-brand img {
  height: 58px; margin-bottom: 18px;
  background: #fffef9; padding: 10px 14px; border-radius: 12px;
  box-shadow: 0 10px 26px -14px rgba(0, 0, 0, .55);
}
.site-footer .f-brand p { font-size: 13.5px; line-height: 2; }
.site-footer ul li { margin-bottom: 10px; font-size: 14px; }
.site-footer ul a:hover { color: var(--gold-light); }
.site-footer .f-contact li { display: flex; gap: 10px; align-items: flex-start; }
.site-footer .f-qr { display: flex; gap: 14px; align-items: center; margin-top: 16px; }
.site-footer .f-qr img { width: 92px; border-radius: 8px; background: #fff; padding: 4px; }
.site-footer .f-qr span { font-size: 12.5px; }
.footer-bottom { border-top: 1px solid rgba(247,244,236,.12); padding: 20px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 12.5px; color: rgba(247,244,236,.45); }
.footer-bottom a { color: rgba(247,244,236,.6); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; } .reveal.d2 { transition-delay: .2s; } .reveal.d3 { transition-delay: .3s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1020px) {
  .trustbar .container { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .split, .split.rev, .report-wrap, .loc-wrap { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .topbar .tb-right { display: none; }
  .stat b { font-size: 32px; }
  .nav-links {
    position: fixed; inset: 76px 0 auto 0; background: var(--cream);
    flex-direction: column; align-items: stretch; padding: 18px 28px 30px;
    border-bottom: 1px solid var(--line); box-shadow: 0 30px 50px -20px rgba(22,55,31,.3);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 4px; border-bottom: 1px dashed var(--line); }
  .nav-cta { margin: 14px 0 0; text-align: center; justify-content: center; }
  .nav-toggle { display: block; }
  .grid-3, .grid-2, .grid-4, .contact-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .news-item { grid-template-columns: 84px 1fr; }
  .news-item .go { display: none; }
  .news-date { padding-right: 16px; }
  .news-date b { font-size: 22px; }
  section.sec { padding: 72px 0; }
  .hero { min-height: 76vh; }
  .trustbar .container { grid-template-columns: 1fr; gap: 2px; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; padding-top: 54px; }
  .float-contact { right: 14px; bottom: 16px; }
}