/* ==========================================================
   商昊嘉 SHANGHAOJIA — 商务门户站 主样式表
   设计基调：深海蓝 + 香槟金 · 克制、稳重、有分量
   ========================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 主色：深海蓝 */
  --navy-900: #05152b;
  --navy-800: #0a2244;
  --navy-700: #0f2f5c;
  --navy-600: #17437f;
  --navy-500: #1d5aa8;
  --blue-400: #2b7fff;
  --blue-300: #6ea8ff;

  /* 辅色：香槟金 */
  --gold-600: #a8803c;
  --gold-500: #c9a45c;
  --gold-400: #e0c68d;

  /* 中性 */
  --ink-900: #0d1524;
  --ink-700: #1f2a3d;
  --ink-500: #47536b;
  --ink-400: #6b7893;
  --ink-300: #93a0b8;
  --line: #e3e8f0;
  --line-soft: #eef2f7;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --bg-deep: #071a34;

  /* 语义色 */
  --success: #16a34a;
  --warn: #d97706;

  /* 尺寸 */
  --container: 1200px;
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 20px;

  /* 阴影 */
  --shadow-s: 0 2px 8px rgba(10, 34, 68, .06);
  --shadow-m: 0 8px 28px rgba(10, 34, 68, .08);
  --shadow-l: 0 18px 48px rgba(10, 34, 68, .12);
  --shadow-gold: 0 12px 32px rgba(169, 128, 60, .22);

  /* 字体 */
  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-num: "Bahnschrift", "DIN Alternate", "Inter", system-ui, sans-serif;

  --header-h: 72px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 2. Reset ---------- */
*, *::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: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; }
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; color: var(--navy-800); line-height: 1.3; letter-spacing: -.01em; }
p { margin: 0; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 3. 通用容器与排版 ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; }

.section { padding: 96px 0; position: relative; }
.section-lg { padding: 120px 0; }
.section-soft { background: var(--bg-soft); }
.section-deep { background: var(--bg-deep); color: #c9d7ec; }
.section-deep h2, .section-deep h3 { color: #fff; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--navy-500); margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--gold-500); display: block; }
.eyebrow.on-dark { color: var(--gold-400); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 40px); margin-bottom: 18px; }
.section-head p { font-size: 17px; color: var(--ink-500); }
.section-deep .section-head p { color: #9fb3d1; }

.text-lead { font-size: 18px; color: var(--ink-500); }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; } .mt-48 { margin-top: 48px; }
.mb-24 { margin-bottom: 24px; } .mb-32 { margin-bottom: 32px; }
.center { text-align: center; }
.gold { color: var(--gold-600); }

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 50px; padding: 0 28px; border-radius: var(--radius-s);
  font-size: 15px; font-weight: 600; letter-spacing: .01em;
  transition: all .28s var(--ease); white-space: nowrap; position: relative; overflow: hidden;
}
.btn-primary { background: linear-gradient(135deg, var(--navy-600), var(--navy-800)); color: #fff; box-shadow: var(--shadow-m); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-l); color: #fff; }
.btn-gold { background: linear-gradient(135deg, var(--gold-500), var(--gold-600)); color: #1a1204; box-shadow: var(--shadow-gold); }
.btn-gold:hover { transform: translateY(-2px); color: #1a1204; }
.btn-outline { border: 1.5px solid rgba(255,255,255,.5); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn-ghost { border: 1.5px solid var(--line); color: var(--navy-700); background: #fff; }
.btn-ghost:hover { border-color: var(--navy-500); color: var(--navy-600); transform: translateY(-2px); }
.btn-sm { height: 42px; padding: 0 20px; font-size: 14px; }
.btn-lg { height: 56px; padding: 0 36px; font-size: 16px; }
.btn-arrow::after { content: "→"; transition: transform .28s var(--ease); }
.btn-arrow:hover::after { transform: translateX(4px); }

.link-more { display: inline-flex; align-items: center; gap: 6px; color: var(--navy-500); font-weight: 600; font-size: 15px; }
.link-more::after { content: "→"; transition: transform .28s var(--ease); }
.link-more:hover { color: var(--navy-700); }
.link-more:hover::after { transform: translateX(4px); }

/* ---------- 5. 栅格 ---------- */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.split-reverse > div:first-child { order: 2; }

/* ---------- 6. 卡片 ---------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-m);
  padding: 36px 32px; transition: all .32s var(--ease); position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); border-color: transparent; }
.card-icon {
  width: 56px; height: 56px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(23,67,127,.1), rgba(43,127,255,.16));
  color: var(--navy-600); font-size: 24px; margin-bottom: 22px;
}
.card h3 { font-size: 20px; margin-bottom: 12px; }
.card p { color: var(--ink-500); font-size: 15px; }
.card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--navy-600), var(--gold-500)); transition: width .38s var(--ease);
}
.card:hover::after { width: 100%; }

.card-flat { background: var(--bg-soft); border-radius: var(--radius-m); padding: 32px; border: 1px solid var(--line-soft); }
.card-dark {
  background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-m); padding: 32px; backdrop-filter: blur(6px);
  transition: all .32s var(--ease);
}
.card-dark:hover { background: rgba(255,255,255,.075); transform: translateY(-5px); border-color: rgba(201,164,92,.4); }
.card-dark h3, .card-dark h4 { color: #fff; }
.card-dark p { color: #a8bcd8; font-size: 15px; }

.card-feature { display: flex; gap: 20px; padding: 28px; border-radius: var(--radius-m); background: #fff; border: 1px solid var(--line); transition: all .3s var(--ease); }
.card-feature:hover { box-shadow: var(--shadow-m); border-color: rgba(43,127,255,.3); }
.card-feature .cf-icon { flex: 0 0 48px; height: 48px; border-radius: 10px; display: grid; place-items: center; background: var(--bg-soft); color: var(--navy-600); font-size: 20px; }
.card-feature h4 { font-size: 17px; margin-bottom: 6px; }
.card-feature p { font-size: 14.5px; color: var(--ink-500); }

/* ---------- 7. 顶部条 & 导航 ---------- */
.topbar { background: var(--navy-900); color: rgba(255,255,255,.72); font-size: 13px; padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,.07); }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.topbar-links { display: flex; gap: 22px; align-items: center; }
.topbar a:hover { color: var(--gold-400); }

.site-header { position: sticky; top: 0; z-index: 900; background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--line); transition: box-shadow .3s var(--ease); }
.site-header.scrolled { box-shadow: 0 6px 24px rgba(10,34,68,.07); }
.navbar { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 32px; }

.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0; position: relative;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-500));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 19px; letter-spacing: -.5px;
  box-shadow: 0 6px 18px rgba(15,47,92,.28);
}
.logo-mark::after { content: ""; position: absolute; inset: 0; border-radius: 10px; border: 1px solid rgba(201,164,92,.55); }
.logo-text strong { display: block; font-size: 18px; color: var(--navy-800); letter-spacing: .02em; line-height: 1.2; }
.logo-text span { display: block; font-size: 10.5px; letter-spacing: .22em; color: var(--ink-400); text-transform: uppercase; }
.site-header.on-dark-theme .logo-text strong { color: #fff; }

.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px; height: 72px; padding: 0 16px;
  font-size: 15px; font-weight: 500; color: var(--ink-700); position: relative; transition: color .25s var(--ease);
}
.nav-link::after {
  content: ""; position: absolute; bottom: 18px; left: 16px; right: 16px; height: 2px;
  background: var(--gold-500); transform: scaleX(0); transform-origin: center; transition: transform .28s var(--ease);
}
.nav-link:hover { color: var(--navy-600); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--navy-700); font-weight: 600; }

.dropdown {
  position: absolute; top: 100%; left: 50%; transform: translate(-50%, 10px);
  min-width: 232px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-m);
  box-shadow: var(--shadow-l); padding: 10px; opacity: 0; visibility: hidden; transition: all .28s var(--ease);
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dropdown a { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: var(--radius-s); font-size: 14.5px; color: var(--ink-700); transition: all .22s var(--ease); }
.dropdown a:hover { background: var(--bg-soft); color: var(--navy-600); }
.dropdown a .dd-ico { width: 30px; height: 30px; border-radius: 7px; display: grid; place-items: center; font-size: 14px; background: var(--bg-soft); }
.dropdown a small { display: block; font-size: 12px; color: var(--ink-400); font-weight: 400; }

.nav-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.nav-phone { font-size: 15px; font-weight: 700; color: var(--navy-700); font-family: var(--font-num); letter-spacing: .02em; }

.burger { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--line); align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.burger span { display: block; width: 18px; height: 2px; background: var(--navy-700); transition: all .3s var(--ease); }
.burger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed; inset: var(--header-h) 0 0 0; z-index: 880; background: #fff; padding: 24px;
  overflow-y: auto; transform: translateX(100%); transition: transform .36s var(--ease); visibility: hidden;
}
.drawer.open { transform: translateX(0); visibility: visible; }
.drawer .nav-link { height: auto; padding: 16px 0; border-bottom: 1px solid var(--line-soft); font-size: 17px; }
.drawer .nav-link::after { display: none; }
.drawer-sub { padding: 0 0 12px 16px; display: none; }
.drawer-sub.show { display: block; }
.drawer-sub a { display: block; padding: 10px 0; font-size: 15px; color: var(--ink-500); }
.drawer-foot { margin-top: 28px; display: grid; gap: 12px; }

/* ---------- 8. Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(150deg, var(--navy-900) 0%, var(--navy-800) 45%, var(--navy-600) 100%);
  padding: 132px 0 120px;
}
.hero-bg-grid {
  position: absolute; inset: 0; opacity: .3; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 64px 64px; mask-image: radial-gradient(circle at 25% 35%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 25% 35%, #000 0%, transparent 72%);
}
.hero-glow { position: absolute; pointer-events: none; border-radius: 50%; filter: blur(90px); }
.hero-glow.g1 { width: 460px; height: 460px; background: rgba(43,127,255,.35); top: -120px; right: -80px; }
.hero-glow.g2 { width: 380px; height: 380px; background: rgba(201,164,92,.22); bottom: -160px; left: -60px; }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.hero h1 { color: #fff; font-size: clamp(34px, 4.6vw, 56px); line-height: 1.2; margin-bottom: 22px; letter-spacing: -.02em; }
.hero h1 em { font-style: normal; color: var(--gold-400); }
.hero-sub { font-size: 18.5px; color: rgba(255,255,255,.8); max-width: 560px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-badges { display: flex; gap: 28px; flex-wrap: wrap; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.14); }
.hero-badge strong { display: block; font-size: 26px; font-family: var(--font-num); color: var(--gold-400); line-height: 1.2; }
.hero-badge span { font-size: 13.5px; color: rgba(255,255,255,.62); }

/* Hero 右侧浮动面板 */
.hero-panel {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius-l);
  padding: 30px; backdrop-filter: blur(14px); box-shadow: 0 24px 60px rgba(0,0,0,.28);
}
.hero-panel h4 { color: #fff; font-size: 15px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 20px; opacity: .7; font-weight: 600; }
.plat-row { display: flex; align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px dashed rgba(255,255,255,.12); }
.plat-row:last-of-type { border-bottom: 0; }
.plat-ico { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; font-weight: 700; font-size: 13px; flex-shrink: 0; }
.plat-name { font-size: 15px; font-weight: 600; color: #fff; }
.plat-desc { font-size: 12.5px; color: rgba(255,255,255,.55); }
.plat-tag { margin-left: auto; font-size: 12px; color: var(--gold-400); border: 1px solid rgba(201,164,92,.4); padding: 3px 10px; border-radius: 20px; white-space: nowrap; }

/* 页面头部（内页） */
.page-head {
  position: relative; overflow: hidden; color: #fff; padding: 96px 0 88px;
  background: linear-gradient(150deg, var(--navy-900), var(--navy-700) 60%, var(--navy-600));
}
.page-head::before {
  content: ""; position: absolute; inset: 0; opacity: .35;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
}
.page-head .container { position: relative; z-index: 2; }
.page-head h1 { color: #fff; font-size: clamp(30px, 4vw, 46px); margin-bottom: 16px; }
.page-head p { font-size: 18px; color: rgba(255,255,255,.76); max-width: 640px; }
.breadcrumb { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: rgba(255,255,255,.55); margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--gold-400); }
.breadcrumb span.sep { opacity: .5; }

.page-head .head-stats { display: flex; gap: 44px; margin-top: 40px; flex-wrap: wrap; }
.page-head .head-stats div strong { display: block; font-size: 30px; font-family: var(--font-num); color: var(--gold-400); }
.page-head .head-stats div span { font-size: 13.5px; color: rgba(255,255,255,.6); }

/* ---------- 9. 核心业务卡 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.svc-card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l);
  padding: 40px 34px 34px; overflow: hidden; transition: all .36s var(--ease);
}
.svc-card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .36s var(--ease);
  background: linear-gradient(165deg, rgba(15,47,92,.96), rgba(23,67,127,.9));
}
.svc-card > * { position: relative; z-index: 2; }
.svc-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-l); border-color: transparent; }
.svc-card:hover::before { opacity: 1; }
.svc-card:hover h3, .svc-card:hover p, .svc-card:hover li { color: #fff; }
.svc-card:hover .svc-num { color: rgba(255,255,255,.14); }
.svc-card:hover .svc-ico { background: rgba(201,164,92,.2); color: var(--gold-400); }
.svc-card:hover .link-more { color: var(--gold-400); }
.svc-num { position: absolute; right: 24px; top: 10px; font-size: 76px; font-family: var(--font-num); font-weight: 700; color: rgba(15,47,92,.055); line-height: 1; z-index: 1; transition: color .36s var(--ease); }
.svc-ico { width: 60px; height: 60px; border-radius: 14px; display: grid; place-items: center; font-size: 26px; background: var(--bg-soft); color: var(--navy-600); margin-bottom: 24px; transition: all .36s var(--ease); }
.svc-card h3 { font-size: 23px; margin-bottom: 14px; }
.svc-card > p { color: var(--ink-500); font-size: 15.5px; margin-bottom: 22px; }
.svc-list { margin-bottom: 26px; }
.svc-list li { position: relative; padding-left: 20px; font-size: 14.5px; color: var(--ink-500); margin-bottom: 8px; }
.svc-list li::before { content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: var(--gold-500); }

/* ---------- 10. 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.step { position: relative; padding-top: 20px; }
.step-num {
  width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; margin-bottom: 20px;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-500)); color: #fff;
  font-family: var(--font-num); font-size: 20px; font-weight: 700; box-shadow: 0 8px 20px rgba(15,47,92,.22);
}
.step h4 { font-size: 18px; margin-bottom: 10px; }
.step p { font-size: 14.5px; color: var(--ink-500); }
.step-connect { position: absolute; top: 46px; right: -14px; width: 26px; height: 1px; background: repeating-linear-gradient(90deg, var(--ink-300) 0 4px, transparent 4px 8px); }
.section-deep .step-num { background: linear-gradient(135deg, var(--gold-500), var(--gold-600)); color: #1a1204; }
.section-deep .step p { color: #9fb3d1; }

/* ---------- 11. 数据统计条 ---------- */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; padding: 8px; }
.stat-item strong { display: block; font-size: clamp(32px, 4vw, 46px); font-family: var(--font-num); color: var(--gold-400); line-height: 1.1; margin-bottom: 8px; }
.stat-item span { font-size: 14.5px; color: rgba(255,255,255,.66); }
.stat-light { text-align: center; }
.stat-light strong { display: block; font-size: clamp(30px, 3.6vw, 42px); font-family: var(--font-num); color: var(--navy-700); line-height: 1.1; margin-bottom: 6px; }
.stat-light span { font-size: 14px; color: var(--ink-500); }

/* ---------- 12. 平台矩阵 ---------- */
.plat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.plat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); padding: 0;
  overflow: hidden; transition: all .34s var(--ease); display: flex; flex-direction: column;
}
.plat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); border-color: transparent; }
.plat-head { padding: 30px 30px 24px; display: flex; align-items: center; gap: 16px; border-bottom: 1px solid var(--line-soft); }
.plat-logo { width: 54px; height: 54px; border-radius: 12px; display: grid; place-items: center; font-size: 15px; font-weight: 700; color: #fff; flex-shrink: 0; }
.plat-title h3 { font-size: 20px; margin-bottom: 2px; }
.plat-title span { font-size: 12.5px; color: var(--ink-400); letter-spacing: .06em; text-transform: uppercase; }
.plat-body { padding: 26px 30px 30px; flex: 1; display: flex; flex-direction: column; }
.plat-body > p { font-size: 15px; color: var(--ink-500); margin-bottom: 20px; }
.plat-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 22px; padding: 18px 0; border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); }
.plat-metrics div { text-align: center; }
.plat-metrics strong { display: block; font-size: 20px; font-family: var(--font-num); color: var(--navy-700); }
.plat-metrics span { font-size: 12px; color: var(--ink-400); }
.plat-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.tag { font-size: 12.5px; padding: 5px 12px; border-radius: 20px; background: var(--bg-soft); color: var(--ink-500); border: 1px solid var(--line-soft); }

/* ---------- 13. 方案 / 能力列表 ---------- */
.check-list { display: grid; gap: 14px; }
.check-list li { display: flex; gap: 14px; align-items: flex-start; font-size: 15.5px; color: var(--ink-700); }
.check-list li::before {
  content: "✓"; flex: 0 0 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(23,67,127,.1); color: var(--navy-600); font-size: 13px; font-weight: 700; margin-top: 3px;
}
.section-deep .check-list li { color: #c9d7ec; }
.section-deep .check-list li::before { background: rgba(201,164,92,.18); color: var(--gold-400); }

.icon-list { display: grid; gap: 20px; }
.icon-list li { display: flex; gap: 16px; }
.icon-list .il-n { flex: 0 0 34px; height: 34px; border-radius: 8px; background: var(--navy-700); color: #fff; display: grid; place-items: center; font-size: 14px; font-weight: 700; font-family: var(--font-num); }
.icon-list h5 { font-size: 16px; margin-bottom: 4px; color: var(--navy-800); }
.icon-list p { font-size: 14.5px; color: var(--ink-500); }

/* ---------- 14. 图片块 / 视觉块 ---------- */
.visual-box { position: relative; border-radius: var(--radius-l); overflow: hidden; box-shadow: var(--shadow-l); }
.visual-box::before { content: ""; display: block; padding-top: 72%; }
.visual-fill { position: absolute; inset: 0; display: grid; place-items: center; background: linear-gradient(150deg, var(--navy-800), var(--navy-600)); color: rgba(255,255,255,.35); font-size: 15px; letter-spacing: .1em; }
.visual-stack { position: relative; }
.float-badge {
  position: absolute; bottom: -24px; left: -24px; background: #fff; border-radius: var(--radius-m);
  padding: 20px 26px; box-shadow: var(--shadow-l); border: 1px solid var(--line-soft); z-index: 3;
}
.float-badge strong { display: block; font-size: 30px; font-family: var(--font-num); color: var(--navy-700); line-height: 1.1; }
.float-badge span { font-size: 13px; color: var(--ink-400); }

/* 数据面板 */
.data-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); box-shadow: var(--shadow-l); overflow: hidden; }
.data-panel-head { padding: 22px 28px; border-bottom: 1px solid var(--line-soft); display: flex; justify-content: space-between; align-items: center; background: var(--bg-soft); }
.data-panel-head h4 { font-size: 16px; }
.data-table { width: 100%; font-size: 14.5px; }
.data-table th { text-align: left; padding: 14px 28px; color: var(--ink-400); font-weight: 600; font-size: 13px; border-bottom: 1px solid var(--line-soft); }
.data-table td { padding: 15px 28px; border-bottom: 1px solid var(--line-soft); color: var(--ink-700); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: var(--bg-soft); }
.up { color: #d13b3b; font-weight: 600; }

/* ---------- 15. 案例卡 ---------- */
.case-card {
  position: relative; border-radius: var(--radius-l); overflow: hidden; background: var(--navy-800);
  min-height: 380px; display: flex; flex-direction: column; justify-content: flex-end; color: #fff;
  transition: transform .36s var(--ease), box-shadow .36s var(--ease);
}
.case-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(5,21,43,.95) 12%, rgba(5,21,43,.35) 60%, rgba(5,21,43,.1)); z-index: 2; }
.case-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-l); }
.case-art { position: absolute; inset: 0; z-index: 1; }
.case-art.a1 { background: linear-gradient(140deg, #0f2f5c, #2b7fff); }
.case-art.a2 { background: linear-gradient(140deg, #0a2244, #a8803c); }
.case-art.a3 { background: linear-gradient(140deg, #17437f, #6ea8ff); }
.case-art.a4 { background: linear-gradient(140deg, #05152b, #1d5aa8); }
.case-art.a5 { background: linear-gradient(140deg, #0f2f5c, #c9a45c); }
.case-art.a6 { background: linear-gradient(140deg, #1d5aa8, #05152b); }
.case-body { position: relative; z-index: 3; padding: 30px; }
.case-industry { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-400); margin-bottom: 10px; display: block; }
.case-body h3 { color: #fff; font-size: 21px; margin-bottom: 12px; }
.case-body p { font-size: 14.5px; color: rgba(255,255,255,.72); margin-bottom: 20px; }
.case-metrics { display: flex; gap: 26px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.16); }
.case-metrics div strong { display: block; font-size: 22px; font-family: var(--font-num); color: var(--gold-400); line-height: 1.2; }
.case-metrics div span { font-size: 12px; color: rgba(255,255,255,.6); }

.case-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-l); overflow: hidden; }
.case-row-art { min-height: 300px; position: relative; background: linear-gradient(140deg, var(--navy-800), var(--navy-600)); display: grid; place-items: center; color: rgba(255,255,255,.5); }
.case-row-body { padding: 44px; background: #fff; }

/* ---------- 16. 资质 / 合作伙伴 ---------- */
.logo-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; }
.logo-cell { background: #fff; height: 104px; display: grid; place-items: center; font-size: 15px; font-weight: 600; color: var(--ink-400); transition: all .3s var(--ease); }
.logo-cell:hover { background: var(--bg-soft); color: var(--navy-600); }
.partner-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border-radius: var(--radius-m); overflow: hidden; border: 1px solid var(--line); }

.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cert-item { text-align: center; padding: 26px 18px; border: 1px dashed var(--line); border-radius: var(--radius-m); transition: all .3s var(--ease); }
.cert-item:hover { border-color: var(--navy-500); background: var(--bg-soft); }
.cert-item strong { display: block; font-size: 16px; color: var(--navy-800); margin-bottom: 6px; }
.cert-item span { font-size: 13px; color: var(--ink-400); }

/* ---------- 17. 团队 / 关于 ---------- */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.team-card { text-align: center; }
.team-avatar { width: 100%; aspect-ratio: 3/4; border-radius: var(--radius-m); background: linear-gradient(160deg, var(--navy-700), var(--navy-500)); margin-bottom: 18px; display: grid; place-items: center; color: rgba(255,255,255,.28); font-size: 13px; letter-spacing: .1em; }
.team-card h4 { font-size: 18px; margin-bottom: 4px; }
.team-card span { font-size: 13.5px; color: var(--ink-400); }

.timeline { position: relative; padding-left: 44px; }
.timeline::before { content: ""; position: absolute; left: 13px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(to bottom, var(--navy-500), var(--gold-500)); opacity: .3; }
.tl-item { position: relative; padding-bottom: 40px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: -38px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 3px solid var(--navy-600); }
.tl-year { font-family: var(--font-num); font-size: 20px; font-weight: 700; color: var(--gold-600); margin-bottom: 6px; }
.tl-item h4 { font-size: 18px; margin-bottom: 8px; }
.tl-item p { font-size: 15px; color: var(--ink-500); }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card { padding: 30px; border-left: 3px solid var(--gold-500); background: var(--bg-soft); border-radius: 0 var(--radius-m) var(--radius-m) 0; }
.value-card h4 { font-size: 18px; margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--ink-500); }

/* ---------- 18. 价格 / 套餐 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; align-items: start; }
.price-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); padding: 38px 32px; position: relative; transition: all .34s var(--ease); }
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.price-card.featured { border: 2px solid var(--navy-600); box-shadow: var(--shadow-l); }
.price-flag { position: absolute; top: -13px; left: 32px; background: linear-gradient(135deg, var(--gold-500), var(--gold-600)); color: #1a1204; font-size: 12.5px; font-weight: 700; padding: 5px 14px; border-radius: 20px; }
.price-card h3 { font-size: 20px; margin-bottom: 8px; }
.price-desc { font-size: 14.5px; color: var(--ink-400); margin-bottom: 22px; min-height: 46px; }
.price-amount { font-size: 38px; font-family: var(--font-num); color: var(--navy-800); line-height: 1.1; margin-bottom: 4px; }
.price-amount small { font-size: 15px; color: var(--ink-400); font-weight: 400; }
.price-unit { font-size: 13.5px; color: var(--ink-400); margin-bottom: 26px; }
.price-card .check-list { margin-bottom: 28px; }
.price-card .check-list li { font-size: 14.5px; }

/* ---------- 19. FAQ ---------- */
.faq-list { max-width: 860px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; background: #fff; transition: all .28s var(--ease); }
.faq-item.open { border-color: var(--navy-500); box-shadow: var(--shadow-s); }
.faq-q { width: 100%; text-align: left; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; gap: 20px; font-size: 16.5px; font-weight: 600; color: var(--navy-800); }
.faq-q .fi { flex: 0 0 26px; height: 26px; border-radius: 50%; background: var(--bg-soft); display: grid; place-items: center; color: var(--navy-600); font-size: 18px; transition: transform .3s var(--ease), background .3s var(--ease); }
.faq-item.open .faq-q .fi { transform: rotate(45deg); background: var(--navy-600); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .36s var(--ease); }
.faq-a > div { padding: 0 24px 22px; font-size: 15px; color: var(--ink-500); border-top: 1px solid var(--line-soft); padding-top: 16px; }

/* ---------- 20. 表单 ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink-700); }
.field label em { color: #d13b3b; font-style: normal; }
.field input, .field select, .field textarea {
  height: 50px; padding: 0 16px; border: 1.5px solid var(--line); border-radius: var(--radius-s);
  background: #fff; transition: all .25s var(--ease); font-size: 15px; width: 100%;
}
.field textarea { height: 132px; padding: 14px 16px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 0; border-color: var(--navy-500); box-shadow: 0 0 0 4px rgba(43,127,255,.1); }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-300); }
.field .err { font-size: 12.5px; color: #d13b3b; display: none; }
.field.invalid input, .field.invalid textarea, .field.invalid select { border-color: #d13b3b; }
.field.invalid .err { display: block; }

.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); padding: 44px; box-shadow: var(--shadow-m); }
.contact-info-list { display: grid; gap: 26px; }
.ci-item { display: flex; gap: 18px; align-items: flex-start; }
.ci-ico { flex: 0 0 50px; height: 50px; border-radius: 12px; background: var(--bg-soft); display: grid; place-items: center; font-size: 20px; color: var(--navy-600); }
.ci-item h5 { font-size: 14px; color: var(--ink-400); font-weight: 500; margin-bottom: 3px; }
.ci-item p, .ci-item a { font-size: 16.5px; color: var(--navy-800); font-weight: 600; }
.ci-item small { display: block; font-size: 13px; color: var(--ink-400); font-weight: 400; margin-top: 3px; }

.form-success { display: none; text-align: center; padding: 40px 20px; }
.form-success.show { display: block; }
.form-success .fs-ico { width: 72px; height: 72px; border-radius: 50%; background: rgba(22,163,74,.1); color: var(--success); display: grid; place-items: center; font-size: 34px; margin: 0 auto 20px; }

/* ---------- 21. CTA 条 ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: var(--radius-l); padding: 64px 56px;
  background: linear-gradient(120deg, var(--navy-900), var(--navy-700) 55%, var(--navy-600));
  color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.cta-band::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,164,92,.28), transparent 70%);
}
.cta-band h2 { color: #fff; font-size: clamp(26px, 3.2vw, 36px); margin-bottom: 12px; position: relative; z-index: 2; }
.cta-band p { color: rgba(255,255,255,.74); font-size: 17px; position: relative; z-index: 2; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 2; }

/* ---------- 22. 页脚 ---------- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,.6); padding: 76px 0 0; font-size: 14.5px; }
.footer-top { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr) 1.5fr; gap: 48px; padding-bottom: 56px; border-bottom: 1px solid rgba(255,255,255,.09); }
.footer-about p { margin-top: 20px; margin-bottom: 24px; line-height: 1.8; }
.footer-contact-line { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-contact-line strong { color: #fff; font-family: var(--font-num); font-size: 17px; }
.footer-col h4 { color: #fff; font-size: 15.5px; margin-bottom: 20px; letter-spacing: .03em; }
.footer-col li { margin-bottom: 12px; }
.footer-col a:hover { color: var(--gold-400); }
.footer-qr { display: flex; gap: 16px; align-items: center; }
.qr-box { width: 96px; height: 96px; border-radius: 10px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); display: grid; place-items: center; font-size: 12px; color: rgba(255,255,255,.4); text-align: center; line-height: 1.4; flex-shrink: 0; }
.footer-bottom { padding: 24px 0 32px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 13.5px; color: rgba(255,255,255,.45); border-top: 1px solid rgba(255,255,255,.06); }
.footer-bottom a:hover { color: var(--gold-400); }
.footer-links-inline { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- 23. 回到顶部 / 浮动工具 ---------- */
.float-tools { position: fixed; right: 22px; bottom: 26px; z-index: 950; display: grid; gap: 12px; }
.ft-btn { width: 52px; height: 52px; border-radius: 50%; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-m); display: grid; place-items: center; color: var(--navy-600); font-size: 18px; transition: all .28s var(--ease); }
.ft-btn:hover { background: var(--navy-700); color: #fff; transform: translateY(-3px); }
#toTop { opacity: 0; visibility: hidden; transform: translateY(14px); }
#toTop.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- 24. 动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: .08s; } .reveal-d2 { transition-delay: .16s; }
.reveal-d3 { transition-delay: .24s; } .reveal-d4 { transition-delay: .32s; }

/* ---------- 25. 响应式 ---------- */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-panel { max-width: 520px; }
  .footer-top { grid-template-columns: 1fr 1fr 1fr; }
  .footer-col.qr-col { grid-column: span 3; }
  .grid-4, .steps, .stats-band, .cert-grid, .team-grid, .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .price-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .svc-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 48px; }
  .split-reverse > div:first-child { order: 0; }
  .logo-wall { grid-template-columns: repeat(3, 1fr); }
  .case-row { grid-template-columns: 1fr; }
  .case-row-art { min-height: 220px; }
}

@media (max-width: 900px) {
  .nav-menu, .nav-actions .btn { display: none; }
  .burger { display: flex; }
  .section { padding: 72px 0; }
  .section-lg { padding: 88px 0; }
  .hero { padding: 96px 0 80px; }
  .nav-phone { display: none; }
  .float-badge { left: 0; bottom: -18px; padding: 16px 20px; }
  .cta-band { padding: 44px 28px; }
  .data-panel-head, .data-table td, .data-table th { padding-left: 18px; padding-right: 18px; }
}

@media (max-width: 720px) {
  .container { padding: 0 18px; }
  .grid-2, .grid-3, .grid-4, .grid-5, .steps, .stats-band, .cert-grid, .team-grid,
  .plat-grid, .value-grid, .footer-top, .form-grid, .partner-wall, .case-row { grid-template-columns: 1fr; }
  .footer-col.qr-col { grid-column: auto; }
  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .hero-badges { gap: 20px; }
  .hero-actions .btn { width: 100%; }
  .section-head { margin-bottom: 40px; }
  .contact-card { padding: 28px 22px; }
  .pq-note { font-size: 13px; }
  .team-avatar { aspect-ratio: 4/3; }
}

@media (max-width: 480px) {
  body { font-size: 15px; }
  .hero h1 { font-size: 30px; }
  .float-tools { right: 12px; bottom: 16px; }
  .ft-btn { width: 46px; height: 46px; }
}

/* ---------- 26. 打印友好 ---------- */
@media print {
  .site-header, .site-footer, .float-tools, .cta-band, .topbar { display: none; }
  .hero, .page-head { background: #fff !important; color: #000 !important; }
}

/* ---------- 27. 表单提交反馈条 ---------- */
.form-tip {
  margin: 0 0 12px;
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.6;
  border: 1px solid transparent;
}
.form-tip.err {
  background: #fff2f2;
  border-color: #f3c2c2;
  color: #a12626;
}
.form-tip.ok {
  background: #f1f9f3;
  border-color: #c3e3cb;
  color: #1d6b36;
}
.form-tip:empty { display: none; }