/* ================================================================
   融汇黄金 · 品牌官网
   纯静态站，无外部依赖（字体 / 图片 / 脚本全部本地或系统字体）
   ================================================================ */

/* ---------- 1. 变量与基础 ---------- */
:root {
  --bg: #0a0a0b;
  --bg-soft: #0e0e10;
  --card: #131315;
  --card-hi: #17171a;
  --gold: #c7a04d;
  --gold-light: #e6cf9a;
  --gold-deep: #8f6f2c;
  --text: #f3efe6;
  --text-dim: #b4ad9f;
  --text-muted: #8b8578;
  --line: rgba(199, 160, 77, .16);
  --line-soft: rgba(255, 255, 255, .06);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-display: "Cormorant Garamond", "Georgia", "Times New Roman", "Songti SC", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --max: 1240px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 极细噪点纹理，避免大面积纯黑发闷 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: .035;
  background-image: 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='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

::selection { background: rgba(199, 160, 77, .28); color: #fff; }

::-webkit-scrollbar { width: 9px; }
::-webkit-scrollbar-track { background: #0a0a0b; }
::-webkit-scrollbar-thumb { background: #2a2521; border-radius: 9px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }

/* ---------- 2. 排版 ---------- */
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 32px; }

.display { font-family: var(--font-display); font-weight: 600; letter-spacing: .01em; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 14px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}
.eyebrow.center { justify-content: center; }
.eyebrow.center::after {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 500; line-height: 1.35; }

h1 { font-size: clamp(34px, 5.4vw, 66px); letter-spacing: .06em; }
h2 { font-size: clamp(26px, 3.4vw, 40px); letter-spacing: .04em; }
h3 { font-size: clamp(19px, 2vw, 24px); letter-spacing: .03em; }

.lead {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 2.1;
  max-width: 620px;
}
.muted { color: var(--text-muted); }

.rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(199, 160, 77, .55), transparent);
  border: 0;
}
.rule.left { background: linear-gradient(90deg, var(--gold), transparent); width: 64px; }

/* ---------- 3. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: .16em;
  padding: 15px 34px;
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all .45s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; transition: transform .45s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn-gold {
  background: linear-gradient(120deg, var(--gold) 0%, #d8b96f 50%, var(--gold) 100%);
  background-size: 200% 100%;
  color: #14100a;
  font-weight: 600;
}
.btn-gold:hover { background-position: 100% 0; box-shadow: 0 12px 34px -12px rgba(199, 160, 77, .65); }

.btn-line {
  border-color: rgba(199, 160, 77, .45);
  color: var(--gold-light);
  background: transparent;
}
.btn-line:hover { border-color: var(--gold); background: rgba(199, 160, 77, .08); }

.btn-ghost { color: var(--text-dim); }
.btn-ghost:hover { color: var(--gold); }

/* ---------- 4. 页头 ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  transition: background .5s var(--ease), backdrop-filter .5s, border-color .5s, padding .4s;
  border-bottom: 1px solid transparent;
  padding: 22px 0;
}
.header.scrolled {
  background: rgba(10, 10, 11, .9);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line);
  padding: 14px 0;
}
.header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: flex; align-items: center; gap: 13px; }
.logo-mark {
  width: 40px; height: 40px;
  border: 1px solid rgba(199, 160, 77, .5);
  display: grid; place-items: center;
  position: relative;
  flex: none;
}
.logo-mark::after {
  content: "";
  position: absolute; inset: 4px;
  border: 1px solid rgba(199, 160, 77, .22);
}
.logo-mark span {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--gold);
  line-height: 1;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-cn { font-size: 19px; letter-spacing: .3em; color: var(--text); }
.logo-en {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: .46em;
  color: var(--gold);
  margin-top: 3px;
}

.nav { display: flex; align-items: center; gap: 38px; }
.nav a {
  font-family: var(--font-sans);
  font-size: 13.5px;
  letter-spacing: .12em;
  color: var(--text-dim);
  position: relative;
  padding: 6px 0;
  transition: color .35s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width .4s var(--ease);
}
.nav a:hover { color: var(--text); }
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav a.active { color: var(--gold-light); }

.header-cta { display: flex; align-items: center; gap: 16px; }
.header-cta .btn { padding: 12px 26px; font-size: 12px; }

.burger {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  position: relative;
}
.burger span {
  position: absolute; left: 50%; width: 18px; height: 1px;
  background: var(--gold-light);
  transform: translateX(-50%);
  transition: all .4s var(--ease);
}
.burger span:nth-child(1) { top: 16px; }
.burger span:nth-child(2) { top: 21px; }
.burger span:nth-child(3) { top: 26px; }
body.menu-open .burger span:nth-child(1) { top: 21px; transform: translateX(-50%) rotate(45deg); }
body.menu-open .burger span:nth-child(2) { opacity: 0; }
body.menu-open .burger span:nth-child(3) { top: 21px; transform: translateX(-50%) rotate(-45deg); }

/* 移动抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: #08080a;
  padding: 110px 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .45s var(--ease), visibility .45s;
  overflow-y: auto;
}
body.menu-open .drawer { opacity: 1; visibility: visible; }
.drawer a {
  font-size: 24px;
  letter-spacing: .12em;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text);
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.drawer a i {
  font-family: var(--font-display);
  font-style: normal;
  font-size: 12px;
  color: var(--gold);
  letter-spacing: .1em;
}
.drawer .btn { margin-top: 28px; }

/* ---------- 5. 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg { position: absolute; inset: 0; z-index: -2; }
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: brightness(.88) contrast(1.03);
  transform: scale(1.06);
  animation: heroZoom 18s var(--ease) forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }

.hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 58% 52% at 50% 45%, rgba(10, 10, 11, .68) 0%, rgba(10, 10, 11, .34) 58%, transparent 80%),
    linear-gradient(180deg, rgba(10, 10, 11, .86) 0%, rgba(10, 10, 11, .38) 40%, rgba(10, 10, 11, .9) 86%, var(--bg) 100%);
}

.hero-inner { position: relative; width: 100%; text-align: center; padding: 140px 0 120px; }

.hero-frame {
  position: relative;
  max-width: 940px;
  margin: 0 auto;
  padding: 44px 30px 36px;
}
.hero-frame::before, .hero-frame::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: min(360px, 72%);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(199, 160, 77, .55), transparent);
}
.hero-frame::before { top: 0; }
.hero-frame::after { bottom: 0; }

.hero-title {
  margin: 26px 0 0;
  font-size: clamp(34px, 5.4vw, 70px);
  letter-spacing: .1em;
  line-height: 1.3;
  background: linear-gradient(180deg, #fffaf0 0%, #f0e2c4 45%, #c7a04d 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 8px 40px rgba(199, 160, 77, .12);
}
.hero-title span { display: inline-block; }
.hero-title span + span { margin-left: .55em; }
.hero-sub {
  margin: 26px auto 0;
  max-width: 680px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 2.2;
  text-wrap: pretty;
}
.hero-actions { margin-top: 40px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.hero-meta {
  position: absolute;
  left: 0; right: 0; bottom: 32px;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-sans);
  font-size: 10.5px;
  letter-spacing: .34em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.hero-meta .scroll {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-meta .scroll i {
  display: block; width: 1px; height: 34px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine { 0%, 100% { opacity: .3; transform: scaleY(.6); } 50% { opacity: 1; transform: scaleY(1); } }

/* ---------- 6. 四大特色 ---------- */
.features { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-soft); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.feature {
  padding: 56px 30px;
  border-right: 1px solid var(--line-soft);
  position: relative;
  transition: background .5s;
}
.feature:last-child { border-right: 0; }
.feature:hover { background: rgba(199, 160, 77, .035); }
.feature-ico {
  width: 46px; height: 46px;
  border: 1px solid rgba(199, 160, 77, .35);
  display: grid; place-items: center;
  color: var(--gold);
  transition: all .5s var(--ease);
}
.feature:hover .feature-ico { border-color: var(--gold); background: rgba(199, 160, 77, .1); transform: translateY(-2px); }
.feature-ico svg { width: 21px; height: 21px; }
.feature h3 { margin-top: 22px; font-size: 18px; letter-spacing: .1em; }
.feature p { margin-top: 8px; font-size: 13px; line-height: 2; color: var(--text-muted); }

/* ---------- 7. 区块通用 ---------- */
.section { padding: 130px 0; position: relative; }
.section.tight { padding: 96px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 60px; }
.section-head .txt { flex: 1; max-width: 640px; }
.section-head h2 { margin-top: 18px; }
.section-head .lead { margin-top: 20px; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }

.link-more {
  flex: none;
  white-space: nowrap;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(199, 160, 77, .3);
  padding-bottom: 6px;
  transition: all .4s var(--ease);
}
.link-more:hover { color: var(--gold-light); border-bottom-color: var(--gold); gap: 16px; }

/* ---------- 8. 系列卡片 ---------- */
.series-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.series-card {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line-soft);
  transition: border-color .5s var(--ease), transform .6s var(--ease);
}
.series-card:hover { border-color: rgba(199, 160, 77, .5); transform: translateY(-6px); }
.series-card .ph { aspect-ratio: 3 / 4; overflow: hidden; position: relative; }
.series-card .ph img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.2s var(--ease), filter .8s;
  filter: brightness(.9) saturate(1.05);
}
.series-card:hover .ph img { transform: scale(1.07); filter: brightness(1) saturate(1.1); }
.series-card .ph::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,11,.05) 0%, rgba(10,10,11,.35) 38%, rgba(10,10,11,.88) 72%, rgba(10,10,11,.97) 100%);
}
.series-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 26px 24px 24px;
  z-index: 2;
}
.series-en {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: .4em;
  color: var(--gold);
}
.series-cn { margin-top: 8px; font-size: 20px; letter-spacing: .12em; }
.series-arrow {
  margin-top: 14px;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--text-muted);
  display: flex; align-items: center; gap: 8px;
  transition: color .4s, gap .4s;
}
.series-card:hover .series-arrow { color: var(--gold-light); gap: 14px; }

/* ---------- 9. 图文对分 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.split.rev .media { order: 2; }
.media {
  position: relative;
  overflow: hidden;
  background: var(--card);
  aspect-ratio: 4 / 5;
}
.media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.media:hover img { transform: scale(1.04); }
.media.wide { aspect-ratio: 3 / 2; }
.media::after {
  content: "";
  position: absolute; inset: 0;
  box-shadow: inset 0 0 90px rgba(0, 0, 0, .55);
  pointer-events: none;
}
.media-plate {
  position: absolute;
  left: -18px; bottom: 26px;
  background: rgba(10, 10, 11, .92);
  border: 1px solid var(--line);
  padding: 16px 24px;
  backdrop-filter: blur(8px);
  z-index: 3;
}
.media-plate strong {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--gold);
  letter-spacing: .04em;
  line-height: 1;
}
.media-plate span {
  font-family: var(--font-sans);
  font-size: 10.5px;
  letter-spacing: .28em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.split h2 { margin: 18px 0 0; }
.split p { margin-top: 22px; color: var(--text-dim); line-height: 2.15; }

/* ---------- 10. 工艺带 ---------- */
.craft-band {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}
.craft-band img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; filter: brightness(.62); }
.craft-band .wrap { width: 100%; }
.craft-band::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(ellipse at center, rgba(10, 10, 11, .35), rgba(10, 10, 11, .9) 78%);
}
.craft-band h2 { margin: 20px auto 0; max-width: 720px; }
.craft-band p { margin: 22px auto 0; max-width: 640px; color: var(--text-dim); text-wrap: pretty; }
.craft-band .btn { margin-top: 36px; }

/* ---------- 11. 产品卡 ---------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding-bottom: 34px; margin-bottom: 46px;
  border-bottom: 1px solid var(--line);
}
.chip {
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: .14em;
  padding: 10px 22px;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
  transition: all .4s var(--ease);
}
.chip:hover { color: var(--text); border-color: rgba(199, 160, 77, .4); }
.chip.on { color: #14100a; background: var(--gold); border-color: var(--gold); font-weight: 600; }

.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.p-card { display: block; background: var(--card); border: 1px solid var(--line-soft); transition: all .55s var(--ease); }
.p-card:hover { border-color: rgba(199, 160, 77, .45); transform: translateY(-6px); box-shadow: 0 24px 60px -30px rgba(0, 0, 0, .9); }
.p-card .ph { aspect-ratio: 1 / 1; overflow: hidden; }
.p-card .ph img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.p-card:hover .ph img { transform: scale(1.06); }
.p-card .bd { padding: 22px 22px 26px; }
.p-card .cat {
  font-family: var(--font-sans);
  font-size: 10.5px;
  letter-spacing: .26em;
  color: var(--gold);
  text-transform: uppercase;
}
.p-card h3 { margin-top: 9px; font-size: 18px; letter-spacing: .08em; }
.p-card p { margin-top: 7px; font-size: 12.5px; color: var(--text-muted); line-height: 1.9; text-wrap: pretty; }
.p-card .go {
  margin-top: 16px;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--text-dim);
  display: flex; align-items: center; gap: 8px;
  transition: color .4s, gap .4s;
}
.p-card:hover .go { color: var(--gold); gap: 14px; }

/* ---------- 12. 工艺步骤 ---------- */
.steps { display: flex; flex-direction: column; gap: 110px; }
.step { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.step:nth-child(even) .step-media { order: 2; }
.step-media { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--card); }
.step-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.step-media:hover img { transform: scale(1.04); }
.step-num {
  font-family: var(--font-display);
  font-size: clamp(64px, 8vw, 110px);
  line-height: .8;
  color: rgba(199, 160, 77, .18);
  letter-spacing: -.02em;
}
.step-sub {
  margin-top: 18px;
  font-family: var(--font-sans);
  font-size: 10.5px;
  letter-spacing: .4em;
  color: var(--gold);
  text-transform: uppercase;
}
.step h3 { margin-top: 12px; font-size: clamp(24px, 2.6vw, 32px); letter-spacing: .1em; }
.step p { margin-top: 22px; color: var(--text-dim); line-height: 2.2; max-width: 460px; }

/* ---------- 13. 权益 / 会员 ---------- */
.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.benefit {
  border: 1px solid var(--line-soft);
  background: var(--card);
  padding: 38px 32px 40px;
  transition: all .5s var(--ease);
  position: relative;
}
.benefit::before {
  content: "";
  position: absolute; left: 0; top: 0; width: 0; height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transition: width .6s var(--ease);
}
.benefit:hover { border-color: rgba(199, 160, 77, .35); background: var(--card-hi); }
.benefit:hover::before { width: 100%; }
.benefit .ico {
  width: 44px; height: 44px;
  border: 1px solid rgba(199, 160, 77, .32);
  display: grid; place-items: center;
  color: var(--gold);
}
.benefit .ico svg { width: 20px; height: 20px; }
.benefit h3 { margin-top: 22px; font-size: 18px; letter-spacing: .1em; }
.benefit p { margin-top: 10px; font-size: 13px; color: var(--text-muted); line-height: 2.05; }

.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.tier {
  border: 1px solid var(--line-soft);
  padding: 44px 34px;
  display: flex; flex-direction: column;
  background: linear-gradient(180deg, rgba(23, 23, 26, .8), rgba(19, 19, 21, .2));
  position: relative;
  transition: all .5s var(--ease);
}
.tier:hover { border-color: rgba(199, 160, 77, .4); transform: translateY(-4px); }
.tier.hot { border-color: rgba(199, 160, 77, .55); background: linear-gradient(180deg, rgba(199, 160, 77, .1), rgba(19, 19, 21, .2)); }
.tier.hot::after {
  content: "MOST POPULAR";
  position: absolute;
  top: -1px; right: 24px;
  background: var(--gold);
  color: #14100a;
  font-family: var(--font-sans);
  font-size: 9px;
  letter-spacing: .2em;
  padding: 5px 12px;
  font-weight: 700;
}
.tier h3 { font-size: 22px; letter-spacing: .16em; }
.tier .cond { margin-top: 10px; font-family: var(--font-sans); font-size: 12px; letter-spacing: .1em; color: var(--gold); }
.tier ul { list-style: none; margin-top: 28px; display: flex; flex-direction: column; gap: 13px; flex: 1; }
.tier li { font-size: 13.5px; color: var(--text-dim); display: flex; gap: 12px; align-items: center; }
.tier li::before {
  content: "";
  width: 5px; height: 5px;
  background: var(--gold);
  transform: rotate(45deg);
  flex: none;
}

/* ---------- 14. 客户之声 ---------- */
.voices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.voice {
  border: 1px solid var(--line-soft);
  background: var(--card);
  padding: 42px 34px;
  display: flex; flex-direction: column;
  transition: all .5s var(--ease);
}
.voice:hover { border-color: rgba(199, 160, 77, .35); transform: translateY(-4px); }
.stars { display: flex; gap: 4px; color: var(--gold); }
.stars svg { width: 13px; height: 13px; }
.voice blockquote {
  margin: 24px 0 0;
  font-size: 14.5px;
  line-height: 2.15;
  color: var(--text-dim);
  flex: 1;
  position: relative;
}
.voice blockquote::before {
  content: "“";
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 1;
  color: rgba(199, 160, 77, .22);
  position: absolute;
  top: -30px; right: -4px;
  opacity: .75;
}
.voice .who { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line-soft); display: flex; align-items: center; gap: 14px; }
.voice .who .av {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(199, 160, 77, .35);
  display: grid; place-items: center;
  font-size: 14px;
  color: var(--gold);
  flex: none;
}
.voice .who strong { display: block; font-size: 14px; letter-spacing: .1em; font-weight: 500; }
.voice .who span { font-family: var(--font-sans); font-size: 11px; letter-spacing: .12em; color: var(--text-muted); }

/* ---------- 15. 时间线 ---------- */
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
  content: "";
  position: absolute; left: 0; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(199, 160, 77, .5) 12%, rgba(199, 160, 77, .5) 88%, transparent);
}
.tl-item { position: relative; padding: 0 0 46px 34px; }
.tl-item::before {
  content: "";
  position: absolute; left: -45px; top: 12px;
  width: 9px; height: 9px;
  background: var(--bg);
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}
.tl-year { font-family: var(--font-display); font-size: 30px; color: var(--gold); letter-spacing: .06em; line-height: 1; }
.tl-item h3 { margin-top: 10px; font-size: 19px; letter-spacing: .12em; }
.tl-item p { margin-top: 8px; font-size: 13.5px; color: var(--text-muted); line-height: 2.05; max-width: 420px; }

/* ---------- 16. CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 150px 0;
  isolation: isolate;
}
.cta img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; filter: brightness(.4) contrast(1.05); }
.cta::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(ellipse at center, rgba(10, 10, 11, .5), rgba(10, 10, 11, .95) 75%);
}
.cta h2 { margin: 20px auto 0; max-width: 700px; }
.cta p { margin: 22px auto 0; max-width: 520px; color: var(--text-dim); }
.cta .btn { margin-top: 40px; }

/* ---------- 17. 页头横幅（内页）---------- */
.page-hero {
  position: relative;
  padding: 210px 0 110px;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--line);
}
.page-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; filter: brightness(.45); }
.page-hero::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(10, 10, 11, .92) 0%, rgba(10, 10, 11, .55) 45%, var(--bg) 100%);
}
.page-hero .inner { text-align: center; max-width: 820px; margin: 0 auto; }
.page-hero h1 { margin-top: 22px; font-size: clamp(30px, 4.4vw, 54px); letter-spacing: .1em; }
.page-hero .lead { margin: 24px auto 0; }
.crumb {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--text-muted);
  display: flex; justify-content: center; gap: 10px;
}
.crumb a:hover { color: var(--gold); }
.crumb i { font-style: normal; color: rgba(199, 160, 77, .5); }

/* ---------- 18. 产品详情 ---------- */
.detail-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: start; }
.gallery-main { aspect-ratio: 1 / 1; overflow: hidden; background: var(--card); border: 1px solid var(--line-soft); }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; transition: opacity .4s; }
.gallery-thumbs { display: flex; gap: 14px; margin-top: 14px; }
.gallery-thumbs button {
  width: 88px; height: 88px;
  padding: 0; border: 1px solid var(--line-soft);
  background: none; cursor: pointer; overflow: hidden;
  transition: border-color .4s;
}
.gallery-thumbs button.on { border-color: var(--gold); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }

.detail-info .cat { font-family: var(--font-sans); font-size: 11px; letter-spacing: .3em; color: var(--gold); }
.detail-info h1 { margin-top: 16px; font-size: clamp(28px, 3.4vw, 42px); letter-spacing: .08em; }
.detail-info .sub { margin-top: 16px; color: var(--text-muted); font-size: 14px; }
.detail-info .desc { margin-top: 30px; color: var(--text-dim); line-height: 2.2; }
.tags { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 9px; }
.tag {
  font-family: var(--font-sans);
  font-size: 11.5px;
  letter-spacing: .1em;
  padding: 7px 15px;
  border: 1px solid var(--line);
  color: var(--gold-light);
}
.svc-list { margin-top: 34px; border-top: 1px solid var(--line-soft); }
.svc-list div {
  display: flex; align-items: center; gap: 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--text-dim);
}
.svc-list svg { width: 15px; height: 15px; color: var(--gold); flex: none; }
.detail-actions { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }

.spec-table { margin-top: 26px; border: 1px solid var(--line-soft); }
.spec-table div { display: grid; grid-template-columns: 120px 1fr; border-bottom: 1px solid var(--line-soft); }
.spec-table div:last-child { border-bottom: 0; }
.spec-table span:first-child {
  padding: 14px 18px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, .02);
  border-right: 1px solid var(--line-soft);
}
.spec-table span:last-child { padding: 14px 18px; font-size: 13.5px; color: var(--text-dim); }

/* ---------- 19. 预约表单 ---------- */
.appoint-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: start; }
.form-card { border: 1px solid var(--line-soft); background: var(--card); padding: 48px 44px; }
.tabs { display: flex; gap: 0; margin-bottom: 34px; border-bottom: 1px solid var(--line-soft); }
.tab {
  flex: 1;
  background: none; border: 0;
  padding: 16px 0;
  font-family: var(--font-sans);
  font-size: 13.5px;
  letter-spacing: .14em;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  transition: color .35s;
}
.tab.on { color: var(--gold-light); }
.tab.on::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--gold); }

.field { margin-bottom: 24px; }
.field label {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.field label em { color: var(--gold); font-style: normal; margin-left: 3px; }
.field input, .field select, .field textarea {
  width: 100%;
  background: rgba(255, 255, 255, .025);
  border: 1px solid var(--line-soft);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 14px 16px;
  outline: none;
  transition: border-color .35s, background .35s;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%23c7a04d' stroke-width='1.2' d='M1 1.5 6 6.5 11 1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.field select option { background: #131315; color: var(--text); }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: rgba(199, 160, 77, .6);
  background: rgba(199, 160, 77, .04);
}
.field input::placeholder, .field textarea::placeholder { color: #5f5b52; }
.field textarea { resize: vertical; min-height: 118px; line-height: 1.9; }
.field .counter {
  text-align: right;
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 7px;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-note { font-family: var(--font-sans); font-size: 11.5px; color: var(--text-muted); line-height: 1.9; margin-top: 18px; }
.form-msg {
  display: none;
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px solid rgba(199, 160, 77, .4);
  background: rgba(199, 160, 77, .07);
  font-size: 13px;
  color: var(--gold-light);
  line-height: 1.9;
}
.form-msg.show { display: block; }
.form-msg.err { border-color: rgba(200, 80, 60, .45); background: rgba(200, 80, 60, .07); color: #e2a89c; }

.info-card { border: 1px solid var(--line-soft); background: var(--bg-soft); padding: 40px 36px; }
.info-card + .info-card { margin-top: 20px; }
.info-card h3 { font-size: 17px; letter-spacing: .14em; }
.info-card .rule { margin: 18px 0 22px; }
.info-row { display: flex; gap: 14px; padding: 12px 0; font-size: 13.5px; color: var(--text-dim); }
.info-row svg { width: 16px; height: 16px; color: var(--gold); flex: none; margin-top: 4px; }
.store-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.store-list li { font-size: 13.5px; color: var(--text-dim); display: flex; gap: 12px; align-items: center; }
.store-list li::before { content: ""; width: 5px; height: 5px; background: var(--gold); transform: rotate(45deg); flex: none; }

/* ---------- 20. 页脚 ---------- */
.footer { border-top: 1px solid var(--line); background: #08080a; padding: 84px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 56px; }
.footer-brand p { margin-top: 24px; font-size: 13px; color: var(--text-muted); line-height: 2.1; max-width: 300px; }
.footer h4 {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: .26em;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 22px;
  text-transform: uppercase;
}
.footer-links { display: flex; flex-direction: column; gap: 13px; }
.footer-links a, .footer-links span { font-size: 13px; color: var(--text-muted); transition: color .35s; }
.footer-links a:hover { color: var(--gold); }
.footer-bottom {
  margin-top: 70px;
  border-top: 1px solid var(--line-soft);
  padding: 26px 0;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  font-family: var(--font-sans);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: #6b665c;
}
.footer-bottom a:hover { color: var(--gold); }

/* ---------- 21. 滚动动画 ---------- */
.js-ready .reveal { opacity: 0; transform: translateY(26px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.js-ready .reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; }
.reveal.d2 { transition-delay: .2s; }
.reveal.d3 { transition-delay: .3s; }
.reveal.d4 { transition-delay: .4s; }

@media (prefers-reduced-motion: reduce) {
  .js-ready .reveal { opacity: 1; transform: none; transition: none; }
  .hero-bg img { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1180px) {
  .nav { gap: 26px; }
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .series-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-grid, .appoint-grid { gap: 44px; }
}

@media (max-width: 980px) {
  .nav, .header-cta .btn { display: none; }
  .burger { display: block; }
  .wrap { padding: 0 24px; }
  .section { padding: 88px 0; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature { border-bottom: 1px solid var(--line-soft); }
  .feature:nth-child(2n) { border-right: 0; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split.rev .media { order: 0; }
  .step { grid-template-columns: 1fr; gap: 34px; }
  .step:nth-child(even) .step-media { order: 0; }
  .benefits, .voices, .tiers { grid-template-columns: repeat(2, 1fr); }
  .tier.hot::after { right: 16px; }
  .detail-grid, .appoint-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .page-hero { padding: 160px 0 80px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 24px; }
  .section-head.center { align-items: center; }
  .media-plate { left: 16px; bottom: 16px; }
  .steps { gap: 70px; }
}

@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .wrap { padding: 0 20px; }
  .hero-inner { padding: 120px 0 100px; }
  .hero-frame { padding: 34px 6px 38px; }
  .hero-title { font-size: clamp(28px, 8.6vw, 40px); line-height: 1.45; }
  .hero-title span { display: block; }
  .hero-title span + span { margin-left: 0; }
  .hero-frame::before, .hero-frame::after { width: 30px; height: 30px; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { font-size: 9px; letter-spacing: .2em; }
  .features-grid { grid-template-columns: 1fr; }
  .feature { border-right: 0; padding: 36px 0; display: grid; grid-template-columns: 46px 1fr; gap: 0 20px; align-items: start; }
  .feature h3 { margin-top: 0; grid-column: 2; }
  .feature p { grid-column: 2; }
  .feature-ico { grid-row: 1 / span 2; }
  .products-grid, .benefits, .voices, .tiers, .series-grid { grid-template-columns: 1fr; }
  .form-card { padding: 32px 22px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .info-card { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .section { padding: 68px 0; }
  .page-hero { padding: 140px 0 64px; }
  .timeline { padding-left: 26px; }
  .tl-item { padding-left: 22px; }
  .tl-item::before { left: -31px; }
  .spec-table div { grid-template-columns: 92px 1fr; }
  .gallery-thumbs button { width: 68px; height: 68px; }
  .detail-actions .btn { width: 100%; }
}