/* ==========================================================================
   淄博市周村区中宝颗粒厂 · 官网样式
   版式语言：Apple 式全宽区块 / 大标题 / 极简导航（保留品牌绿作为强调色）
   静态站点 · 可直接部署至宝塔（Nginx / Apache）
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  /* 中性（Apple 系统色） */
  --ink: #1d1d1f;
  --ink-2: #6e6e73;
  --ink-3: #86868b;
  --line: #d2d2d7;
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --bg-dark: #000000;
  --bg-dark-2: #1d1d1f;

  /* 品牌强调色（生物质绿） */
  --accent: #0b7a3b;
  --accent-hover: #096530;
  --accent-on-dark: #5bd989;
  --accent-soft: #e8f3ec;

  /* 兼容旧变量名（内页沿用） */
  --green-900: #000000;
  --green-800: #1d1d1f;
  --green-700: var(--accent);
  --green-600: #15964a;
  --green-100: var(--accent-soft);
  --green-200: #cfe6d8;
  --wood-700: #8a5a2b;
  --wood-600: #a96a33;
  --wood-500: #d9a468;
  --wood-100: #f3ece3;
  --cream: var(--bg-alt);
  --cream-2: #ececee;
  --sand: var(--bg-alt);
  --body: var(--ink);
  --muted: var(--ink-2);
  --on-dark: #a1a1a6;
  --on-dark-soft: #d2d2d7;
  --footer-muted: var(--ink-3);
  --divider: var(--line);

  --font-sans: "SF Pro Text", "SF Pro SC", "PingFang SC", "Noto Sans SC", "Hiragino Sans GB",
    "Microsoft YaHei", "微软雅黑", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-cond: var(--font-sans);

  --radius: 18px;
  --radius-lg: 28px;
  --radius-pill: 980px;
  --shadow: none;
  --shadow-hover: none;
  --wrap: 1120px;
  --wrap-wide: 1440px;
  --sec-y: clamp(64px, 8vw, 112px);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.47059;
  font-weight: 400;
  letter-spacing: -0.022em;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .2s ease, opacity .2s ease; }
h1, h2, h3, h4, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

.icon { width: 1em; height: 1em; display: inline-block; vertical-align: -0.15em; fill: none; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- 布局容器 ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap-wide { width: 100%; max-width: var(--wrap-wide); margin: 0 auto; padding: 0 24px; }
.sec { padding: var(--sec-y) 0; }
.sec--white { background: var(--bg); }
.sec--cream { background: var(--bg-alt); }
.sec--sand { background: var(--bg-alt); }
.sec--dark { background: var(--bg-dark); color: #f5f5f7; }

/* ==========================================================================
   按钮 / 文字链接（Apple 药丸按钮）
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius-pill); border: 1px solid transparent;
  font-size: 17px; font-weight: 400; line-height: 1.2; white-space: nowrap;
  letter-spacing: -0.022em; transition: background .22s ease, color .22s ease, border-color .22s ease;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hover); color: #fff; }
.btn--outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn--outline:hover { background: var(--accent); color: #fff; }
.btn--white { background: #fff; color: var(--ink); }
.btn--white:hover { background: #f5f5f7; color: var(--ink); }
.btn--lg { padding: 14px 28px; font-size: 19px; }

/* 文字链接（Apple “进一步了解 ›”） */
.link-more,
.link-cta {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent); font-size: 21px; font-weight: 400;
}
.link-more:hover, .link-cta:hover { text-decoration: underline; }
.link-more .icon, .link-cta .icon { width: .62em; height: .62em; transition: transform .22s ease; }
.link-more:hover .icon, .link-cta:hover .icon { transform: translateX(3px); }

/* ==========================================================================
   区块标题（Apple 居中大标题 + 21px 副文案）
   ========================================================================== */
.sec-head { display: flex; flex-direction: column; gap: 14px; }
.sec-eyebrow { display: flex; align-items: center; gap: 10px; }
.sec-eyebrow .bar { display: none; }
.sec-eyebrow span {
  font-size: 12px; font-weight: 600; letter-spacing: .1em;
  color: var(--accent); text-transform: uppercase;
}
.sec-title {
  font-size: clamp(30px, 4.4vw, 48px); font-weight: 600; line-height: 1.08;
  letter-spacing: -0.015em; color: var(--ink);
}
.sec-desc { font-size: 21px; line-height: 1.38; font-weight: 400; color: var(--ink-2); max-width: 720px; }

/* 区块级标题居中（.split 内的标题保持左对齐） */
.sec > .wrap > .sec-head,
.sec > .wrap-wide > .sec-head { align-items: center; text-align: center; }
.sec > .wrap > .sec-head .sec-desc,
.sec > .wrap-wide > .sec-head .sec-desc { margin-left: auto; margin-right: auto; }

/* 深色区块内的标题 */
.on-dark .sec-title, .sec--dark .sec-title { color: #f5f5f7; }
.on-dark .sec-desc, .sec--dark .sec-desc { color: var(--on-dark); }
.on-dark .sec-eyebrow span, .sec--dark .sec-eyebrow span { color: var(--accent-on-dark); }
.on-dark .link-more, .sec--dark .link-more { color: var(--accent-on-dark); }

/* ==========================================================================
   页头：促销条 + 极简导航
   ========================================================================== */
.site-header { position: relative; z-index: 120; }

.topbar { background: var(--bg-alt); }
.topbar-inner {
  max-width: var(--wrap-wide); margin: 0 auto; padding: 0 24px; min-height: 40px;
  display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap;
}
.topbar-left { font-size: 12px; line-height: 1.4; color: var(--ink-2); letter-spacing: 0; }
.topbar-right { display: flex; align-items: center; gap: 6px; }
.topbar-right .icon { width: 13px; height: 13px; color: var(--accent); }
.topbar-phone { font-size: 12px; color: var(--accent); letter-spacing: 0; }
.topbar-phone:hover { text-decoration: underline; }

.navbar {
  position: sticky; top: 0; z-index: 120;
  background: rgba(255, 255, 255, .72);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, .08);
}
.navbar-inner {
  max-width: var(--wrap-wide); margin: 0 auto; padding: 0 24px; height: 52px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}

/* Logo */
.logo { display: inline-flex; align-items: center; gap: 9px; }
.logo-mark { width: 28px; height: 28px; flex: none; }
.logo-mark svg { width: 28px; height: 28px; }
.logo-text { display: flex; flex-direction: column; gap: 1px; }
.logo-name { font-size: 17px; font-weight: 600; letter-spacing: 0; color: var(--ink); line-height: 1.1; }
.logo-sub { font-size: 9px; letter-spacing: .1em; color: var(--ink-3); text-transform: uppercase; line-height: 1; }
.logo--light .logo-name { color: var(--ink); }
.logo--light .logo-sub { color: var(--ink-3); }
.logo--light .logo-mark .lm-bg { fill: var(--accent); }
.logo--light .logo-mark .lm-flame { fill: var(--wood-500); }
.logo--light .logo-mark .lm-inner { fill: #fff; }
.logo--light .logo-mark .lm-dot { fill: var(--accent); }

/* 导航菜单：12px 一行米字型 */
.nav-menu { display: flex; align-items: center; gap: 34px; }
.nav-menu a {
  position: relative; font-size: 12px; font-weight: 400; letter-spacing: 0;
  color: var(--ink); opacity: .8; line-height: 52px;
}
.nav-menu a::after { display: none; }
.nav-menu a:hover { opacity: 1; color: var(--accent); }
.nav-menu a.is-active { opacity: 1; color: var(--accent); }

.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-cta .btn { padding: 7px 15px; font-size: 12px; }
.nav-toggle {
  display: none; width: 40px; height: 40px; border: 0; background: transparent;
  color: var(--ink); align-items: center; justify-content: center; padding: 0;
}
.nav-toggle .icon { width: 20px; height: 20px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle.is-open .icon-menu { display: none; }
.nav-toggle.is-open .icon-close { display: block; }

/* ==========================================================================
   首页 Hero：居中大标题 + 全宽成品图
   ========================================================================== */
.hero { background: var(--bg); padding: clamp(48px, 6vw, 88px) 0 0; text-align: center; }
.hero-grid { display: flex; flex-direction: column; align-items: center; gap: clamp(28px, 4vw, 52px); }
.hero-left { display: flex; flex-direction: column; align-items: center; gap: 20px; max-width: 900px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 15px; border-radius: var(--radius-pill); background: var(--accent-soft);
  font-size: 13px; font-weight: 500; color: var(--accent);
}
.hero-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero h1 {
  font-size: clamp(40px, 6.6vw, 76px); font-weight: 600; line-height: 1.05;
  letter-spacing: -0.02em; color: var(--ink);
}
.hero h1 em { font-style: normal; color: var(--accent); display: block; }
.hero-sub {
  font-size: clamp(19px, 1.6vw, 24px); line-height: 1.35; font-weight: 400;
  color: var(--ink-2); max-width: 700px; letter-spacing: -0.015em;
}
.hero-cta { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; justify-content: center; margin-top: 4px; }
.hero-trust { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; justify-content: center; }
.hero-trust li { display: flex; align-items: center; gap: 7px; font-size: 14px; color: var(--ink-2); letter-spacing: 0; }
.hero-trust .icon { width: 17px; height: 17px; }

/* 全宽主视觉图 */
.hero-right { width: 100%; display: flex; flex-direction: column; gap: 0; }
.hero-img {
  width: 100%; aspect-ratio: 16 / 9; max-height: 620px; overflow: hidden; border-radius: 0;
  background: var(--bg-alt);
}
.hero-img img { width: 100%; height: 100%; object-fit: cover; }
.hero-strip {
  display: flex; align-items: center; justify-content: center; gap: clamp(28px, 6vw, 96px);
  background: var(--bg-alt); padding: 28px 24px; flex-wrap: wrap;
}
.hero-strip .mini { text-align: center; }
.hero-strip .mini strong {
  display: block; font-size: clamp(28px, 3vw, 40px); font-weight: 600;
  color: var(--ink); line-height: 1.1; letter-spacing: -0.02em;
}
.hero-strip .mini span { font-size: 14px; color: var(--ink-2); letter-spacing: 0; }

/* ==========================================================================
   数据条（浅灰）
   ========================================================================== */
.stats-band { background: var(--bg-alt); padding: clamp(48px, 6vw, 80px) 0; }
.stats-inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center;
}
.stat strong {
  display: block; font-size: clamp(30px, 3.6vw, 44px); font-weight: 600;
  color: var(--ink); line-height: 1.1; letter-spacing: -0.02em;
}
.stat span { display: block; margin-top: 8px; font-size: 14px; color: var(--ink-2); letter-spacing: 0; }

/* ==========================================================================
   卡片（Apple 式圆角磁贴：无描边、居中排布）
   ========================================================================== */
.card {
  background: var(--bg); border: 0; border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column; text-align: center;
  transition: background .25s ease;
}
.sec--cream .card, .sec--sand .card { background: var(--bg); }
.sec--white .card { background: var(--bg-alt); }
.sec--dark .card { background: var(--bg-dark-2); }
.card:hover { transform: none; box-shadow: none; }
.card-media { height: auto; aspect-ratio: 4 / 3; background: var(--cream-2); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.22,.61,.36,1); }
.card:hover .card-media img { transform: scale(1.03); }
.card-body { padding: 28px 28px 34px; display: flex; flex-direction: column; align-items: center; gap: 12px; flex: 1; }
.card-title { font-size: clamp(21px, 2vw, 28px); font-weight: 600; color: var(--ink); line-height: 1.15; letter-spacing: -0.015em; }
.card-desc { font-size: 15px; line-height: 1.5; color: var(--ink-2); flex: 1; letter-spacing: 0; max-width: 40ch; }
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.tag {
  display: inline-flex; align-items: center; padding: 5px 12px; border-radius: var(--radius-pill);
  background: var(--accent-soft); color: var(--accent); font-size: 12px; line-height: 1.5; letter-spacing: 0;
}
.sec--dark .tag { background: rgba(91, 217, 137, .14); color: var(--accent-on-dark); }
.card-link { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-size: 17px; letter-spacing: 0; margin-top: 2px; }
.card-link .icon { width: .62em; height: .62em; transition: transform .22s ease; }
.card:hover .card-link .icon { transform: translateX(3px); }
.sec--dark .card-link { color: var(--accent-on-dark); }
.sec--dark .card-title { color: #f5f5f7; }
.sec--dark .card-desc { color: var(--on-dark); }

/* 网格 */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ==========================================================================
   快速选型 / 用量对照：深色区发丝分割行
   ========================================================================== */
.rows { display: flex; flex-direction: column; gap: 0; border-top: 1px solid rgba(255, 255, 255, .16); }
.row-card {
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
  background: transparent; border-radius: 0; border-bottom: 1px solid rgba(255, 255, 255, .16);
  padding: 28px 4px; transition: background .22s ease, padding .22s ease;
}
.row-card:hover { background: rgba(255, 255, 255, .05); transform: none; padding-left: 14px; padding-right: 14px; }
.row-card .num { font-size: 15px; font-weight: 600; color: var(--accent-on-dark); flex: none; letter-spacing: 0; }
.row-card .row-q { font-size: clamp(19px, 1.8vw, 24px); font-weight: 500; color: #f5f5f7; flex: 1 1 auto; min-width: 0; letter-spacing: -0.015em; }
.row-card .row-a { font-size: 17px; color: var(--on-dark); flex: none; letter-spacing: 0; }
.row-head { display: flex; align-items: center; gap: 20px; flex: 1 1 auto; min-width: 0; }

/* 编号卡片（承诺 / 步骤） */
.num-card {
  background: var(--bg); border: 0; border-radius: var(--radius-lg);
  padding: 36px 30px; display: flex; flex-direction: column; gap: 12px; text-align: center; align-items: center;
}
.sec--white .num-card { background: var(--bg-alt); }
.num-card:hover { transform: none; box-shadow: none; }
.num-card .num { font-size: 15px; font-weight: 600; color: var(--accent); line-height: 1; }
.num-card h3 { font-size: 21px; font-weight: 600; color: var(--ink); letter-spacing: -0.015em; }
.num-card p { font-size: 15px; line-height: 1.5; color: var(--ink-2); letter-spacing: 0; }
.num-card .icon { width: 26px; height: 26px; }
.num-card--cream { background: var(--bg); border-color: transparent; }
.num-card--dark { background: var(--bg-dark-2); }
.num-card--dark h3 { color: #f5f5f7; }
.num-card--dark p { color: var(--on-dark); }
.sec--cream .num-card, .sec--sand .num-card { background: var(--bg); }
.num-card--dark h3 { color: #f5f5f7; }
.num-card--dark p { color: var(--on-dark); }

/* 双列图文 */
.split { display: flex; align-items: center; gap: clamp(36px, 6vw, 80px); }
.split-media {
  flex: 0 0 48%; height: auto; aspect-ratio: 4 / 3; border-radius: var(--radius-lg);
  overflow: hidden; background: var(--cream-2);
}
.split-media img { width: 100%; height: 100%; object-fit: cover; }
.split-body { flex: 1 1 auto; display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.split-body p { font-size: 17px; line-height: 1.5; color: var(--ink); letter-spacing: 0; }
.split-body p.dim { color: var(--ink-2); }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex; align-items: center; padding: 8px 16px; border-radius: var(--radius-pill);
  background: var(--accent-soft); color: var(--accent); font-size: 14px; letter-spacing: 0;
}
.chip--wood { background: var(--wood-100); color: var(--wood-700); }

/* 特性列表 */
.feature-list { display: flex; flex-direction: column; gap: 22px; }
.feature { display: flex; gap: 14px; }
.feature .icon { width: 21px; height: 21px; flex: none; margin-top: 3px; color: var(--accent); }
.feature h4 { font-size: 19px; font-weight: 600; color: var(--ink); margin-bottom: 3px; letter-spacing: -0.01em; }
.feature p { font-size: 15px; line-height: 1.5; color: var(--ink-2); letter-spacing: 0; }

/* ==========================================================================
   内页 Banner：居中大标题
   ========================================================================== */
.page-banner { background: var(--bg); padding: clamp(48px, 6vw, 80px) 0 clamp(24px, 3vw, 36px); text-align: center; }
.page-banner .wrap { display: flex; flex-direction: column; align-items: center; }
.breadcrumb { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 12px; color: var(--ink-3); letter-spacing: 0; }
.breadcrumb .sep { color: var(--ink-3); }
.breadcrumb .current { color: var(--ink-2); }
.breadcrumb a:hover { color: var(--accent); }
.page-banner h1 {
  margin-top: 14px; font-size: clamp(34px, 5vw, 56px); font-weight: 600;
  letter-spacing: -0.02em; line-height: 1.08; color: var(--ink);
}
.page-banner p { margin-top: 14px; font-size: 21px; line-height: 1.38; color: var(--ink-2); max-width: 720px; }

/* ==========================================================================
   时间轴
   ========================================================================== */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.tl-card {
  background: var(--bg); border: 0; border-radius: var(--radius-lg);
  padding: 32px 28px; display: flex; flex-direction: column; gap: 10px; text-align: center; align-items: center;
}
.sec--white .tl-card { background: var(--bg-alt); }
.tl-card:hover { transform: none; box-shadow: none; }
.tl-card .year { font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: .06em; line-height: 1; }
.tl-card h3 { font-size: 21px; font-weight: 600; color: var(--ink); letter-spacing: -0.015em; }
.tl-card p { font-size: 15px; line-height: 1.5; color: var(--ink-2); letter-spacing: 0; }

/* 数据行 */
.stat-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  background: var(--bg-alt); border-radius: var(--radius-lg); padding: 40px 32px; text-align: center;
}
.stat-row .stat strong { font-size: clamp(30px, 3.4vw, 42px); color: var(--ink); }
.stat-row .stat span { color: var(--ink-2); }

/* ==========================================================================
   FAQ 手风琴
   ========================================================================== */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg); border: 0; border-radius: var(--radius); overflow: hidden;
  transition: background .22s ease;
}
.faq-item:hover { border-color: transparent; box-shadow: none; }
.faq-item[open] { background: var(--bg); }
.faq-q {
  display: flex; align-items: center; gap: 18px; padding: 24px 28px;
  cursor: pointer; list-style: none; user-select: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q .q-badge {
  width: 28px; height: 28px; flex: none; border-radius: var(--radius-pill); background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: 0;
}
.faq-q .q-text { flex: 1 1 auto; font-size: 19px; font-weight: 400; color: var(--ink); letter-spacing: -0.01em; }
.faq-q .plus { width: 18px; height: 18px; flex: none; color: var(--accent); transition: transform .28s ease; }
.faq-item[open] .faq-q .plus { transform: rotate(135deg); }
.faq-a { padding: 0 28px 26px 74px; font-size: 17px; line-height: 1.5; color: var(--ink-2); letter-spacing: 0; }
.faq-a strong { color: var(--ink); font-weight: 600; }

/* 分类标签 */
.chip-tabs {
  display: flex; flex-wrap: wrap; gap: 10px; background: transparent;
  padding: 0 0 32px; justify-content: center;
}
.chip-tab {
  display: inline-flex; align-items: center; padding: 9px 18px; border-radius: var(--radius-pill);
  font-size: 14px; color: var(--ink); background: var(--bg); border: 1px solid var(--line); transition: all .2s ease; letter-spacing: 0;
}
.chip-tab:hover { border-color: var(--accent); color: var(--accent); }
.chip-tab.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ==========================================================================
   参数对比表（Apple 式极简表）
   ========================================================================== */
.table-scroll { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.spec {
  width: 100%; min-width: 760px; border-collapse: collapse; background: var(--bg);
  border: 0; border-radius: var(--radius); overflow: hidden;
}
table.spec th, table.spec td {
  padding: 18px 20px; text-align: left; font-size: 15px; letter-spacing: 0;
  border-bottom: 1px solid var(--line);
}
table.spec thead th {
  background: transparent; color: var(--ink-3); font-weight: 600; font-size: 12px;
  text-transform: uppercase; letter-spacing: .06em; white-space: nowrap; border-bottom: 1px solid var(--ink);
}
table.spec tbody tr:last-child td { border-bottom: 0; }
table.spec tbody tr:nth-child(even) { background: transparent; }
table.spec tbody td:first-child { font-weight: 600; color: var(--ink); white-space: nowrap; }
table.spec tbody tr:hover { background: var(--bg-alt); }

/* ==========================================================================
   CTA 区（Apple 式黑色圆角横幅 / 大标题块）
   ========================================================================== */
.cta-band { padding: 0 0 var(--sec-y); background: transparent; }
.cta-box {
  background: var(--bg-dark); border-radius: var(--radius-lg);
  padding: clamp(40px, 5vw, 72px) clamp(28px, 5vw, 64px);
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 26px;
}
.cta-box h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 600; color: #f5f5f7; line-height: 1.12; letter-spacing: -0.02em; }
.cta-box p { font-size: 19px; line-height: 1.4; color: var(--on-dark); max-width: 680px; letter-spacing: 0; }
.sec--dark .cta-box { background: var(--bg-dark-2); }

/* ==========================================================================
   页脚（Apple 式浅灰）
   ========================================================================== */
.site-footer { background: var(--bg-alt); padding: 56px 0 0; }
.footer-main { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-brand { flex: 1 1 300px; max-width: 380px; display: flex; flex-direction: column; gap: 18px; }
.footer-brand p { font-size: 13px; line-height: 1.6; color: var(--ink-2); letter-spacing: 0; }
.footer-contacts { display: flex; flex-direction: column; gap: 10px; }
.footer-contacts li { display: flex; align-items: flex-start; gap: 9px; font-size: 13px; color: var(--ink-2); letter-spacing: 0; }
.footer-contacts .icon { width: 14px; height: 14px; flex: none; margin-top: 3px; color: var(--ink-3); }
.footer-contacts a:hover { color: var(--accent); }
.footer-col { flex: 1 1 140px; display: flex; flex-direction: column; gap: 14px; }
.footer-col h3 { font-size: 13px; font-weight: 600; color: var(--ink); margin: 0; letter-spacing: 0; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: 13px; color: var(--ink-2); letter-spacing: 0; }
.footer-col a:hover { color: var(--accent); text-decoration: underline; }
.footer-divider { height: 1px; background: var(--line); margin: 40px 0 0; }
.footer-bottom {
  min-height: 60px; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--ink-3); letter-spacing: 0;
}
.footer-bottom .num { letter-spacing: 0; }

/* ==========================================================================
   联系我们
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-card {
  border-radius: var(--radius-lg); padding: clamp(32px, 4vw, 52px);
  display: flex; flex-direction: column; gap: 14px;
}
.contact-card .icon-lg { width: 36px; height: 36px; }
.contact-card .label { font-size: 15px; letter-spacing: 0; }
.contact-card .value {
  font-size: clamp(26px, 3vw, 38px); font-weight: 600; line-height: 1.15;
  letter-spacing: -0.02em; color: var(--ink); word-break: break-word;
}
.contact-card .note { font-size: 15px; line-height: 1.5; letter-spacing: 0; }
.contact-card--dark { background: var(--bg-dark); }
.contact-card--dark .label { color: var(--on-dark); }
.contact-card--dark .value { font-size: clamp(30px, 3.6vw, 46px); color: #f5f5f7; letter-spacing: -0.02em; }
.contact-card--dark .note { color: var(--on-dark); }
.contact-card--light { background: var(--bg-alt); border: 0; }
.sec--cream .contact-card--light, .sec--sand .contact-card--light { background: var(--bg); }
.contact-card--light .label { color: var(--ink-2); }
.contact-card--light .note { color: var(--ink-2); }

/* 地图 */
.map-box {
  position: relative; height: 420px; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--bg-alt); border: 0;
}
.map-box svg { width: 100%; height: 100%; display: block; }
.map-chip {
  position: absolute; left: 482px; top: 185px; background: var(--ink); color: #fff;
  padding: 9px 15px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 500;
  white-space: nowrap; letter-spacing: 0;
}

/* 来访提示 */
.tips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; text-align: center; }
.tip { display: flex; flex-direction: column; gap: 10px; align-items: center; }
.tip .icon { width: 26px; height: 26px; color: var(--accent); }
.tip h3 { font-size: 19px; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.tip p { font-size: 15px; line-height: 1.5; color: var(--ink-2); letter-spacing: 0; }

/* ==========================================================================
   浮动联系按钮
   ========================================================================== */
.float-bar {
  position: fixed; right: 22px; bottom: 26px; z-index: 90;
  display: flex; flex-direction: column; gap: 12px;
}
.float-btn {
  width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(0, 0, 0, .16);
  transition: transform .22s ease, background .22s ease;
}
.float-btn:hover { transform: translateY(-2px); background: var(--accent-hover); }
.float-btn .icon { width: 22px; height: 22px; }
.float-btn--top { background: rgba(255, 255, 255, .9); color: var(--ink); border: 1px solid var(--line); opacity: 0; visibility: hidden; -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); }
.float-btn--top.is-show { opacity: 1; visibility: visible; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1200px) {
  .nav-menu { gap: 24px; }
}

@media (max-width: 1024px) {
  .split { flex-direction: column; gap: 36px; }
  .split-media { flex: none; width: 100%; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .footer-main { gap: 40px; }
  .map-chip { left: 380px; }
}

@media (max-width: 900px) {
  /* 移动端：全屏白色导航浮层 */
  .nav-menu {
    position: fixed; inset: 92px 0 auto 0; flex-direction: column; align-items: flex-start; gap: 0;
    background: rgba(255, 255, 255, .98);
    -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line); padding: 8px 24px 28px;
    transform: translateY(-10px); opacity: 0; visibility: hidden; transition: all .25s ease;
    max-height: calc(100vh - 92px); overflow-y: auto;
  }
  .nav-menu.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-menu a { padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 24px; font-weight: 600; line-height: 1.3; opacity: 1; width: 100%; }
  .nav-menu a.is-active { color: var(--accent); }
  .nav-toggle { display: flex; }
  .nav-cta .btn { display: none; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .tips { grid-template-columns: 1fr; gap: 30px; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
  .stat-row { grid-template-columns: 1fr; gap: 28px; }
  .row-card { flex-direction: column; align-items: flex-start; gap: 8px; }
  .row-card .row-q, .row-card .row-a { flex: none; }
  .row-card .row-a { font-size: 15px; }
  .row-head { flex-direction: column; align-items: flex-start; gap: 6px; }
  .hero-img { aspect-ratio: 16 / 10; }
  .map-chip { left: auto; right: 16px; top: auto; bottom: 16px; }
}

@media (max-width: 720px) {
  :root { --sec-y: 56px; }
  body { font-size: 16px; }
  .wrap, .wrap-wide { padding: 0 20px; }
  .topbar-inner, .navbar-inner, .stats-inner { padding: 0 20px; }
  .topbar-left { display: none; }
  .navbar-inner { height: 48px; }
  .nav-menu { inset: 88px 0 auto 0; max-height: calc(100vh - 88px); }
  .sec-desc { font-size: 18px; }
  .sec-title { font-size: 30px; }
  .hero { padding: 36px 0 0; }
  .hero-sub { font-size: 18px; }
  .hero-cta { gap: 18px; }
  .card-body { padding: 24px 20px 28px; }
  .card-desc { font-size: 14px; }
  .faq-q { padding: 20px 20px; gap: 12px; }
  .faq-q .q-text { font-size: 17px; }
  .faq-a { padding: 0 20px 22px 60px; font-size: 16px; }
  .link-more, .link-cta { font-size: 18px; }
  .footer-col { flex: 1 1 40%; }
  .float-bar { right: 14px; bottom: 16px; }
  .float-btn { width: 44px; height: 44px; }
  .btn { padding: 11px 20px; font-size: 16px; }
  .float-bar { gap: 10px; }
}

/* 打印 */
@media print {
  .site-header, .float-bar, .cta-band, .nav-toggle { display: none !important; }
}