/* ==========================================================================
   影计照明 YOUNGG — 官网样式系统
   设计基调：暗色影调 × 暖光强调色，产品与规格区域回到亮色纸面，
   呼应品牌「科学健康光」的主张与目录册的影院感摄影。
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 暗色底 */
  --ink: #0a0b0e;
  --ink-2: #12141a;
  --ink-3: #1b1e26;
  --ink-4: #262a34;
  /* 亮色纸面 */
  --paper: #f6f4f0;
  --paper-2: #ffffff;
  --paper-3: #ece8e1;
  /* 品牌色 */
  --amber: #e0a45e;
  --amber-2: #f3cd94;
  --amber-3: #96601f;
  --navy: #203864;
  --navy-2: #2c4a80;
  /* 文字 */
  --on-dark: #ecebe7;
  --on-dark-2: #a9adb6;
  --on-dark-3: #767b86;
  --on-light: #17191d;
  --on-light-2: #565b64;
  --on-light-3: #6b7078;
  /* 线 */
  --line-dark: rgba(255, 255, 255, 0.09);
  --line-light: rgba(23, 25, 29, 0.12);
  /* 版式 */
  --font-cjk: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: "Helvetica Neue", "Arial", "PingFang SC", sans-serif;
  /* 尺寸 */
  --wrap: 1240px;
  --wrap-narrow: 900px;
  --radius: 2px;
  --radius-lg: 4px;
  --nav-h: 72px;
  --shadow-1: 0 20px 60px -30px rgba(0, 0, 0, 0.55);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. 基础 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--on-dark);
  font-family: var(--font-cjk);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.22; letter-spacing: -0.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

::selection { background: var(--amber); color: #1a1206; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  background: var(--amber);
  color: #1a1206;
  padding: 10px 18px;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 16px; }

/* ---------- 3. 版心与栅格 ---------- */
.wrap {
  width: min(100% - 48px, var(--wrap));
  margin-inline: auto;
}
.wrap-narrow { width: min(100% - 48px, var(--wrap-narrow)); margin-inline: auto; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-auto-sm { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

/* ---------- 4. 区块 ---------- */
.section { padding: 108px 0; position: relative; }
.section-sm { padding: 72px 0; }
.section-light { background: var(--paper); color: var(--on-light); }
.section-light h2, .section-light h3 { color: var(--on-light); }
.section-ink-2 { background: var(--ink-2); }

.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head.is-center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.section-light .eyebrow { color: var(--amber-3); }

.h1 { font-size: clamp(2.4rem, 5.4vw, 4.2rem); }
.h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
.h3 { font-size: clamp(1.15rem, 1.6vw, 1.45rem); }
.h4 { font-size: 1.0625rem; }

.lead {
  font-size: clamp(1rem, 1.25vw, 1.125rem);
  color: var(--on-dark-2);
  line-height: 1.9;
}
.section-light .lead { color: var(--on-light-2); }

.muted { color: var(--on-dark-2); }
.muted-2 { color: var(--on-dark-3); }
.section-light .muted { color: var(--on-light-2); }

.rule { height: 1px; background: var(--line-dark); border: 0; margin: 0; }
.section-light .rule { background: var(--line-light); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  color: var(--on-dark);
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.btn:hover { border-color: var(--amber); color: var(--amber-2); transform: translateY(-2px); }
.btn-primary {
  background: var(--amber);
  border-color: var(--amber);
  color: #1a1206;
  font-weight: 600;
}
.btn-primary:hover { background: var(--amber-2); border-color: var(--amber-2); color: #1a1206; }
.btn-ghost-light { border-color: rgba(23, 25, 29, 0.2); color: var(--on-light); }
.btn-ghost-light:hover { border-color: var(--amber-3); color: var(--amber-3); }
.btn-sm { padding: 10px 18px; font-size: 0.875rem; }
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--amber);
  border-bottom: 1px solid rgba(224, 164, 94, 0.35);
  padding-bottom: 3px;
  transition: border-color 0.3s var(--ease), gap 0.3s var(--ease);
}
.link-more:hover { border-color: var(--amber); gap: 12px; }
.section-light .link-more { color: var(--amber-3); border-color: rgba(181, 124, 55, 0.4); }

/* ---------- 6. 导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, rgba(10, 11, 14, 0.72), rgba(10, 11, 14, 0));
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(10, 11, 14, 0.9);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom-color: var(--line-dark);
}
.nav-inner {
  width: min(100% - 48px, var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, #ffe6bd 0%, var(--amber) 42%, #8a5a1e 100%);
  box-shadow: 0 0 22px rgba(224, 164, 94, 0.45);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-cn { font-size: 1.0625rem; font-weight: 600; letter-spacing: 0.16em; }
.brand-en {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.34em;
  color: var(--on-dark-3);
  text-transform: uppercase;
}
.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link {
  position: relative;
  padding: 10px 14px;
  font-size: 0.9375rem;
  color: var(--on-dark-2);
  transition: color 0.25s var(--ease);
}
.nav-link:hover { color: var(--on-dark); }
.nav-link.is-active { color: var(--amber); }
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 1px;
  background: var(--amber);
}
.nav-cta { margin-left: 16px; }
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--on-dark);
  position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1px;
  background: var(--on-dark);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

.drawer {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  z-index: 99;
  background: rgba(10, 11, 14, 0.98);
  backdrop-filter: blur(16px);
  padding: 28px 24px 48px;
  display: none;
  overflow-y: auto;
}
.drawer.is-open { display: block; }
.drawer a {
  display: block;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line-dark);
  font-size: 1.0625rem;
  color: var(--on-dark-2);
}
.drawer a.is-active { color: var(--amber); }
.drawer .btn { margin-top: 24px; width: 100%; justify-content: center; }

/* ---------- 7. 首页主视觉 ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 64px) 0 72px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0.62;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 78% 18%, rgba(224, 164, 94, 0.28), transparent 55%),
    linear-gradient(180deg, rgba(10, 11, 14, 0.86) 0%, rgba(10, 11, 14, 0.35) 34%, rgba(10, 11, 14, 0.94) 100%);
}
.hero-inner { position: relative; z-index: 1; width: 100%; }
.hero-title {
  font-size: clamp(2.6rem, 8vw, 6rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.1;
}
.hero-title .glow {
  background: linear-gradient(96deg, #fff 0%, var(--amber-2) 46%, var(--amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 22px;
  max-width: 620px;
  font-size: clamp(1rem, 1.4vw, 1.1875rem);
  color: var(--on-dark-2);
  line-height: 1.9;
}
.hero-actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta {
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--line-dark);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.hero-meta dt {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 2.6vw, 2.125rem);
  color: var(--amber-2);
  letter-spacing: 0.01em;
}
.hero-meta dd {
  margin: 6px 0 0;
  font-size: 0.875rem;
  color: var(--on-dark-3);
  letter-spacing: 0.06em;
}
.hero-scroll {
  position: absolute;
  right: 24px;
  bottom: 28px;
  z-index: 1;
  writing-mode: vertical-rl;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--on-dark-3);
  text-transform: uppercase;
}

/* ---------- 8. 卡片 ---------- */
.card {
  position: relative;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0));
  padding: 32px 28px;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), background 0.35s var(--ease);
}
.card:hover { border-color: rgba(224, 164, 94, 0.42); transform: translateY(-4px); }
.card-num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--on-dark-3);
}
.card h3 { margin-top: 16px; }
.card p { margin-top: 12px; color: var(--on-dark-2); font-size: 0.9375rem; line-height: 1.85; }
.card-value {
  font-family: var(--font-num);
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  color: var(--amber-2);
  letter-spacing: 0.01em;
}
.card-list { margin-top: 18px; display: grid; gap: 8px; }
.card-list li {
  display: flex;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--on-dark-2);
}
.card-list li::before {
  content: "";
  flex: 0 0 5px;
  width: 5px;
  height: 5px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--amber);
  opacity: 0.8;
}

.card-light {
  background: var(--paper-2);
  border-color: var(--line-light);
  box-shadow: 0 24px 60px -46px rgba(20, 22, 28, 0.6);
}
.card-light:hover { border-color: rgba(181, 124, 55, 0.45); }
.card-light p { color: var(--on-light-2); }
.card-light .card-num { color: var(--on-light-3); }
.card-light .card-value { color: var(--amber-3); }
.card-light .card-list li { color: var(--on-light-2); }
.card-light .card-list li::before { background: var(--amber-3); }

/* ---------- 9. 业务版图 ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); }
.biz-item {
  background: var(--ink);
  padding: 34px 26px 30px;
  min-height: 168px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background 0.35s var(--ease);
}
.biz-item:hover { background: var(--ink-3); }
.biz-item .idx { font-family: var(--font-num); font-size: 11px; letter-spacing: 0.24em; color: var(--on-dark-3); }
.biz-item h3 { font-size: 1.125rem; margin-top: 22px; }
.biz-item p { margin-top: 8px; font-size: 0.8125rem; color: var(--on-dark-3); }

/* ---------- 10. 技术要点 ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.tech-card {
  border-top: 1px solid var(--line-light);
  padding-top: 22px;
}
.tech-card .k {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--amber-3);
  text-transform: uppercase;
}
.tech-card .v {
  margin-top: 10px;
  font-family: var(--font-num);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  color: var(--on-light);
  letter-spacing: 0.01em;
}
.tech-card p { margin-top: 12px; font-size: 0.875rem; color: var(--on-light-2); line-height: 1.85; }

.figure {
  margin: 0;
  border: 1px solid var(--line-light);
  background: var(--paper-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.figure img { width: 100%; height: auto; }
.figure figcaption {
  padding: 12px 16px;
  font-size: 0.75rem;
  color: var(--on-light-2);
  border-top: 1px solid var(--line-light);
  letter-spacing: 0.02em;
}
.figure-dark { border-color: var(--line-dark); background: var(--ink-2); }
.figure-dark figcaption { color: var(--on-dark-3); border-top-color: var(--line-dark); }

/* ---------- 11. 智能生态 ---------- */
.chip-group { margin-top: 26px; }
.chip-group h3 { font-size: 0.9375rem; letter-spacing: 0.08em; color: var(--on-dark-2); margin-bottom: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--on-dark-2);
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), background 0.3s var(--ease);
}
.chip:hover { border-color: rgba(224, 164, 94, 0.5); color: var(--on-dark); background: rgba(224, 164, 94, 0.08); }
.chip::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
  opacity: 0.75;
}
.section-light .chip { border-color: var(--line-light); color: var(--on-light-2); background: #fff; }
.section-light .chip::before { background: var(--amber-3); }

/* ---------- 12. 产品 ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 18px 0 26px;
  border-bottom: 1px solid var(--line-light);
}
.filter-btn {
  padding: 10px 20px;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  font-size: 0.9375rem;
  color: var(--on-light-2);
  background: #fff;
  transition: all 0.3s var(--ease);
}
.filter-btn:hover { border-color: var(--amber-3); color: var(--amber-3); }
.filter-btn.is-active { background: var(--on-light); border-color: var(--on-light); color: #fff; }
.filter-search {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  background: #fff;
  padding: 8px 18px;
  min-width: 260px;
}
.filter-search input {
  border: 0;
  outline: 0;
  background: none;
  width: 100%;
  font: inherit;
  font-size: 0.9375rem;
  color: var(--on-light);
}
.filter-search input::placeholder { color: var(--on-light-3); }
.filter-count { font-size: 0.8125rem; color: var(--on-light-2); padding: 16px 0 0; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
  gap: 24px;
  padding: 32px 0 0;
}
.product-card {
  background: #fff;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-align: left;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(181, 124, 55, 0.4);
  box-shadow: 0 30px 60px -42px rgba(20, 22, 28, 0.55);
}
.product-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #fff;
  display: grid;
  place-items: center;
  padding: 18px;
  border-bottom: 1px solid var(--line-light);
}
.product-thumb img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.product-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.product-cat {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber-3);
}
.product-name { font-size: 1.0625rem; font-weight: 600; color: var(--on-light); }
.product-specs { display: grid; gap: 6px; margin-top: auto; }
.product-specs div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.8125rem;
  color: var(--on-light-2);
  border-top: 1px dashed rgba(23, 25, 29, 0.1);
  padding-top: 6px;
}
.product-specs span:first-child { color: var(--on-light-3); flex: 0 0 auto; }
.product-specs span:last-child { text-align: right; color: var(--on-light); }
.product-more {
  align-self: flex-start;
  font-size: 0.8125rem;
  color: var(--amber-3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.empty {
  padding: 80px 0;
  text-align: center;
  color: var(--on-light-2);
}

/* 产品详情弹层 */
.modal {
  position: fixed;
  inset: 0;
  z-index: 150;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(6, 7, 9, 0.72);
  backdrop-filter: blur(6px);
}
.modal.is-open { display: flex; }
.modal-panel {
  width: min(100%, 940px);
  max-height: 88svh;
  overflow-y: auto;
  background: var(--paper-2);
  color: var(--on-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-light);
  box-shadow: var(--shadow-1);
}
.modal-grid { display: grid; grid-template-columns: 1fr 1.05fr; }
.modal-media {
  background: #fff;
  display: grid;
  place-items: center;
  padding: 32px;
  border-right: 1px solid var(--line-light);
}
.modal-media img { width: 100%; max-width: 380px; object-fit: contain; mix-blend-mode: multiply; }
.modal-body { padding: 36px 34px 34px; }
.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 18px;
  line-height: 1;
}
.spec-table { width: 100%; border-collapse: collapse; margin-top: 24px; }
.spec-table th,
.spec-table td {
  text-align: left;
  font-size: 0.875rem;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line-light);
  vertical-align: top;
}
.spec-table th {
  width: 110px;
  font-weight: 500;
  color: var(--on-light-3);
}
.spec-table td { color: var(--on-light); }
.modal-note { margin-top: 22px; font-size: 0.75rem; color: var(--on-light-3); line-height: 1.8; }

/* ---------- 13. 流程与服务 ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1px; background: var(--line-light); border: 1px solid var(--line-light); }
.step {
  background: var(--paper-2);
  padding: 28px 24px 30px;
  min-height: 150px;
}
.step .n {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--amber-3);
}
.step h3 { margin-top: 20px; font-size: 1rem; }
.step p { margin-top: 8px; font-size: 0.8125rem; color: var(--on-light-2); line-height: 1.8; }

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; }
.stat {
  border-left: 1px solid var(--line-dark);
  padding-left: 20px;
  min-width: 0;
}
.stat b {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.4rem, 2.6vw, 2.5rem);
  font-weight: 500;
  color: var(--amber-2);
  line-height: 1.15;
  overflow-wrap: anywhere;
}
.stat span { display: block; margin-top: 8px; font-size: 0.875rem; color: var(--on-dark-3); }
.section-light .stat { border-left-color: var(--line-light); }
.section-light .stat b { color: var(--amber-3); }
.section-light .stat span { color: var(--on-light-2); }

/* ---------- 14. 场景带 ---------- */
.band {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.band-bg { position: absolute; inset: 0; }
.band-bg img { width: 100%; height: 100%; object-fit: cover; }
.band-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 11, 14, 0.94) 0%, rgba(10, 11, 14, 0.72) 46%, rgba(10, 11, 14, 0.45) 100%);
}
.band-inner { position: relative; z-index: 1; max-width: 620px; }

.quote-block {
  max-width: 900px;
  margin-inline: auto;
  text-align: center;
}
.quote-block p {
  font-size: clamp(1.35rem, 3vw, 2.125rem);
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--on-dark);
}
.quote-block cite {
  display: block;
  margin-top: 22px;
  font-style: normal;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--on-dark-3);
  text-transform: uppercase;
}

/* ---------- 15. 联系与表单 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.info-list { display: grid; gap: 26px; }
.info-item { border-top: 1px solid var(--line-dark); padding-top: 18px; }
.info-item dt {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--on-dark-3);
}
.info-item dd { margin: 10px 0 0; font-size: 1.0625rem; }
.info-item dd small { display: block; margin-top: 6px; font-size: 0.8125rem; color: var(--on-dark-3); }
.section-light .info-item { border-top-color: var(--line-light); }
.section-light .info-item dt { color: var(--on-light-3); }
.section-light .info-item dd small { color: var(--on-light-2); }

.form { display: grid; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 0.8125rem; letter-spacing: 0.06em; color: var(--on-dark-2); }
.section-light .field label { color: var(--on-light-2); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 16px;
  font: inherit;
  font-size: 0.9375rem;
  color: var(--on-dark);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.section-light .field input,
.section-light .field select,
.section-light .field textarea {
  background: #fff;
  border-color: var(--line-light);
  color: var(--on-light);
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 0;
  border-color: var(--amber);
  background: rgba(224, 164, 94, 0.06);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-note { font-size: 0.75rem; color: var(--on-dark-3); line-height: 1.8; }
.section-light .form-note { color: var(--on-light-2); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translate(-50%, 130%);
  z-index: 300;
  background: var(--amber);
  color: #1a1206;
  padding: 14px 24px;
  border-radius: 999px;
  font-size: 0.9375rem;
  box-shadow: var(--shadow-1);
  transition: transform 0.4s var(--ease);
}
.toast.is-show { transform: translate(-50%, 0); }

/* ---------- 16. 页脚 ---------- */
.footer {
  background: var(--ink);
  border-top: 1px solid var(--line-dark);
  padding: 72px 0 34px;
  font-size: 0.875rem;
}
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
.footer h4 {
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--on-dark-3);
  margin-bottom: 18px;
  font-family: var(--font-num);
  font-weight: 500;
}
.footer ul { display: grid; gap: 11px; }
.footer a { color: var(--on-dark-2); transition: color 0.25s var(--ease); }
.footer a:hover { color: var(--amber); }
.footer-brand p { margin-top: 16px; color: var(--on-dark-3); max-width: 320px; line-height: 1.9; }
.footer-bottom {
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  justify-content: space-between;
  color: var(--on-dark-3);
  font-size: 0.8125rem;
}

/* ---------- 17. 动效 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }

/* 页面头（内页） */
.page-head {
  position: relative;
  padding: calc(var(--nav-h) + 96px) 0 72px;
  background:
    radial-gradient(90% 120% at 82% 0%, rgba(224, 164, 94, 0.16), transparent 60%),
    var(--ink-2);
  border-bottom: 1px solid var(--line-dark);
}
.page-head .h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
.crumb {
  display: flex;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--on-dark-3);
  margin-bottom: 22px;
  font-family: var(--font-num);
  letter-spacing: 0.06em;
}
.crumb a:hover { color: var(--amber); }

/* ---------- 18. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .modal-grid { grid-template-columns: 1fr; }
  .modal-media { border-right: 0; border-bottom: 1px solid var(--line-light); padding: 24px; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 900px) {
  .nav-menu, .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .section { padding: 78px 0; }
  .hero { min-height: auto; padding: calc(var(--nav-h) + 88px) 0 64px; }
  .hero-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .filter-search { margin-left: 0; width: 100%; min-width: 0; }
  .field-row { grid-template-columns: 1fr; }
  .hero-scroll { display: none; }
}

@media (max-width: 560px) {
  .wrap, .wrap-narrow, .nav-inner { width: calc(100% - 36px); }
  .section { padding: 62px 0; }
  .card { padding: 26px 22px; }
  .modal { padding: 12px; }
  .modal-body { padding: 26px 22px 28px; }
  .footer { padding-top: 56px; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .nav, .drawer, .modal, .toast { display: none !important; }
  body { background: #fff; color: #000; }
}