/* ============================================================
   星辰云新零售 · 官网样式
   科技蓝 #4B7BFF · 互联网 SaaS 风格
   ============================================================ */
:root {
  --primary: #4B7BFF;
  --primary-deep: #3560E0;
  --accent: #7C5CFF;
  --cyan: #2FB8FF;
  --ink: #101828;
  --text: #344054;
  --muted: #667085;
  --line: #EAECF0;
  --bg-soft: #F5F8FF;
  --bg-white: #FFFFFF;
  --grad: linear-gradient(120deg, #4B7BFF 0%, #7C5CFF 100%);
  --grad-soft: linear-gradient(120deg, rgba(75, 123, 255, .08), rgba(124, 92, 255, .08));
  --shadow-sm: 0 2px 8px rgba(16, 24, 40, .06);
  --shadow-md: 0 8px 24px rgba(53, 96, 224, .10);
  --shadow-lg: 0 16px 48px rgba(53, 96, 224, .16);
  --radius: 16px;
  --nav-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1200px, 92%); margin: 0 auto; }

/* ---------- 通用 ---------- */
.section { padding: 96px 0; }
.section.soft { background: var(--bg-soft); }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--primary); background: var(--grad-soft);
  border: 1px solid rgba(75, 123, 255, .25);
  padding: 6px 16px; border-radius: 999px; margin-bottom: 16px;
}
.sec-title { font-size: 36px; font-weight: 700; color: var(--ink); letter-spacing: 1px; }
.sec-desc { font-size: 16px; color: var(--muted); margin-top: 14px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  padding: 13px 32px; border-radius: 999px; font-size: 15px; font-weight: 600;
  border: none; transition: all .25s ease;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 24px rgba(75, 123, 255, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(75, 123, 255, .45); }
.btn-ghost { background: rgba(255,255,255,.9); color: var(--primary); border: 1.5px solid rgba(75,123,255,.45); }
.btn-ghost:hover { background: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-sm { padding: 9px 22px; font-size: 13px; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h); transition: all .3s ease;
  background: rgba(255, 255, 255, .75);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
}
.nav.scrolled { border-bottom-color: var(--line); box-shadow: 0 4px 20px rgba(16,24,40,.05); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }
.logo { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 800; color: var(--ink); }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px; background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 17px; font-weight: 800; letter-spacing: -1px;
  box-shadow: 0 4px 12px rgba(75,123,255,.4);
}
.logo small { display: block; font-size: 10px; font-weight: 500; color: var(--muted); letter-spacing: 1px; line-height: 1.2; }
.nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-links a {
  padding: 8px 18px; border-radius: 999px; font-size: 15px; font-weight: 500;
  color: var(--text); transition: all .2s;
}
.nav-links a:hover { color: var(--primary); background: var(--grad-soft); }
.nav-links a.active { color: #fff; background: var(--grad); box-shadow: 0 4px 14px rgba(75,123,255,.35); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2.5px; border-radius: 2px; background: var(--ink); transition: .25s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--nav-h) + 88px) 0 110px;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(124, 92, 255, .16), transparent 60%),
    radial-gradient(800px 460px at -10% 20%, rgba(75, 123, 255, .14), transparent 60%),
    linear-gradient(180deg, #F7F9FF 0%, #FFFFFF 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(75,123,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(75,123,255,.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 40%, transparent 100%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--primary-deep);
  background: rgba(255,255,255,.85); border: 1px solid rgba(75,123,255,.3);
  padding: 7px 16px; border-radius: 999px; margin-bottom: 24px; box-shadow: var(--shadow-sm);
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 4px rgba(75,123,255,.18); }
.hero h1 { font-size: 52px; font-weight: 800; color: var(--ink); line-height: 1.28; letter-spacing: 1px; }
.hero h1 .grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: 17px; color: var(--muted); margin: 22px 0 36px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 36px; margin-top: 48px; flex-wrap: wrap; }
.hero-meta .item b { display: block; font-size: 24px; font-weight: 800; color: var(--ink); }
.hero-meta .item span { font-size: 13px; color: var(--muted); }

/* Hero 右侧视觉：数据面板 */
.hero-visual { position: relative; }
.glass-card {
  background: rgba(255,255,255,.8); backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.9); border-radius: 20px;
  box-shadow: var(--shadow-lg); padding: 26px;
}
.dash { position: relative; }
.dash-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.dash-head b { font-size: 15px; color: var(--ink); }
.dash-head .live { font-size: 12px; color: #12B76A; display: flex; align-items: center; gap: 6px; }
.dash-head .live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #12B76A; box-shadow: 0 0 0 4px rgba(18,183,106,.15); }
.dash-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.dash-stats .cell { background: var(--grad-soft); border: 1px solid rgba(75,123,255,.18); border-radius: 12px; padding: 14px 12px; text-align: center; }
.dash-stats .cell b { display: block; font-size: 20px; font-weight: 800; color: var(--primary-deep); }
.dash-stats .cell span { font-size: 11px; color: var(--muted); }
.bars { display: flex; align-items: flex-end; gap: 10px; height: 120px; padding: 8px 4px 0; }
.bars i {
  flex: 1; border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, #7C5CFF, #4B7BFF);
  opacity: .85; animation: grow 1.2s ease both;
}
.bars i:nth-child(2n) { background: linear-gradient(180deg, #2FB8FF, #4B7BFF); }
@keyframes grow { from { height: 0 !important; } }
.float-chip {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: #fff; border-radius: 14px; box-shadow: var(--shadow-lg);
  padding: 12px 18px; font-size: 13px; color: var(--ink); font-weight: 600;
  animation: float 4.5s ease-in-out infinite;
}
.float-chip .ico {
  width: 34px; height: 34px; border-radius: 10px; background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.float-chip small { display: block; font-weight: 400; color: var(--muted); font-size: 11px; }
.chip-1 { top: -26px; left: -34px; }
.chip-2 { bottom: -24px; right: -20px; animation-delay: 1.6s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---------- 数据带 ---------- */
.stats-band { background: var(--grad); padding: 64px 0; position: relative; overflow: hidden; }
.stats-band::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 200px at 20% 0%, rgba(255,255,255,.18), transparent 60%);
}
.stats-grid { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: center; }
.stats-grid b { display: block; font-size: 40px; font-weight: 800; color: #fff; letter-spacing: 0; }
.stats-grid b em { font-style: normal; font-size: 20px; margin-left: 2px; }
.stats-grid span { color: rgba(255,255,255,.85); font-size: 14px; }

/* ---------- 产品卡 ---------- */
.grid { display: grid; gap: 24px; }
.grid.products { grid-template-columns: repeat(3, 1fr); }
.grid.solutions { grid-template-columns: repeat(3, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; transition: all .3s ease; position: relative; overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad); opacity: 0; transition: .3s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(75,123,255,.35); }
.card:hover::after { opacity: 1; }
.card .ico {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px;
  background: var(--grad-soft); border: 1px solid rgba(75,123,255,.2);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.card h3 { font-size: 19px; color: var(--ink); font-weight: 700; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--muted); margin-bottom: 16px; min-height: 66px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span {
  font-size: 12px; color: var(--primary-deep); background: var(--grad-soft);
  padding: 4px 12px; border-radius: 999px; border: 1px solid rgba(75,123,255,.18);
}

/* ---------- 解决方案平台卡 ---------- */
.plat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all .3s ease; display: flex; flex-direction: column;
}
.plat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(75,123,255,.35); }
.plat-top {
  padding: 26px 28px 20px; display: flex; align-items: center; gap: 16px;
  background: linear-gradient(120deg, rgba(75,123,255,.07), rgba(124,92,255,.07));
  border-bottom: 1px solid var(--line);
}
.plat-top .ico {
  width: 50px; height: 50px; border-radius: 14px; background: var(--grad);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 22px;
  box-shadow: 0 6px 16px rgba(75,123,255,.35); flex-shrink: 0;
}
.plat-top h3 { font-size: 19px; font-weight: 700; color: var(--ink); }
.plat-top small { display: block; font-size: 12px; color: var(--muted); font-weight: 400; margin-top: 2px; }
.plat-body { padding: 22px 28px 28px; flex: 1; }
.plat-body p { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.plat-links { display: flex; flex-direction: column; gap: 10px; }
.plat-links a {
  display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text);
  padding: 10px 14px; border-radius: 10px; background: var(--bg-soft);
  transition: all .2s; font-weight: 500;
}
.plat-links a:hover { background: var(--grad-soft); color: var(--primary-deep); transform: translateX(4px); }
.plat-links a .arr { margin-left: auto; color: var(--primary); font-weight: 700; }

/* ---------- 服务模式 ---------- */
.mode-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.mode-card {
  background: #fff; border-radius: 20px; padding: 38px 32px;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: all .3s; position: relative;
}
.mode-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.mode-num {
  font-size: 44px; font-weight: 800; line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  opacity: .28; position: absolute; top: 24px; right: 28px;
}
.mode-card .ico { font-size: 34px; margin-bottom: 16px; }
.mode-card h3 { font-size: 20px; color: var(--ink); margin-bottom: 12px; }
.mode-card p { font-size: 14px; color: var(--muted); }
.mode-card ul { list-style: none; margin-top: 16px; }
.mode-card li { font-size: 13.5px; color: var(--text); padding: 6px 0 6px 22px; position: relative; }
.mode-card li::before {
  content: "✓"; position: absolute; left: 0; top: 6px;
  width: 16px; height: 16px; border-radius: 50%; background: var(--grad-soft);
  color: var(--primary); font-size: 11px; display: flex; align-items: center; justify-content: center;
}

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; transition: all .3s; position: relative;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-brand {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 14px;
  font-size: 17px; font-weight: 700; color: var(--ink);
}
.case-brand .mark {
  width: 40px; height: 40px; border-radius: 12px; background: var(--grad);
  color: #fff; font-size: 16px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.case-card p { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.case-metric {
  display: flex; gap: 28px; padding-top: 16px; border-top: 1px dashed var(--line);
}
.case-metric b { display: block; font-size: 22px; font-weight: 800; color: var(--primary-deep); }
.case-metric span { font-size: 12px; color: var(--muted); }

/* ---------- 客户墙 ---------- */
.logo-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.logo-wall .cell {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 10px; text-align: center; font-size: 14px; font-weight: 600;
  color: var(--text); transition: all .25s; white-space: nowrap; overflow: hidden;
}
.logo-wall .cell:hover { border-color: rgba(75,123,255,.4); color: var(--primary-deep); box-shadow: var(--shadow-md); transform: translateY(-3px); }

/* ---------- CTA ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--grad); padding: 84px 0; text-align: center; }
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 40px 40px;
}
.cta-band h2 { position: relative; font-size: 36px; font-weight: 800; color: #fff; letter-spacing: 1px; }
.cta-band p { position: relative; color: rgba(255,255,255,.85); margin: 16px 0 36px; font-size: 16px; }
.cta-band .btn { position: relative; background: #fff; color: var(--primary-deep); }
.cta-band .btn:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(16,24,40,.25); }

/* ---------- 子页头 ---------- */
.page-hero {
  position: relative; overflow: hidden; text-align: center;
  padding: calc(var(--nav-h) + 76px) 0 80px;
  background:
    radial-gradient(700px 400px at 80% -10%, rgba(124,92,255,.14), transparent 60%),
    radial-gradient(600px 360px at 10% 10%, rgba(75,123,255,.12), transparent 60%),
    linear-gradient(180deg, #F7F9FF, #fff);
}
.page-hero h1 { font-size: 42px; font-weight: 800; color: var(--ink); letter-spacing: 1px; }
.page-hero p { color: var(--muted); margin-top: 16px; font-size: 16px; max-width: 640px; margin-left: auto; margin-right: auto; }
.crumb { margin-top: 22px; font-size: 13px; color: var(--muted); }
.crumb a { color: var(--primary); }

/* ---------- 时间轴 / 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.about-grid .rich p { font-size: 15px; color: var(--text); margin-bottom: 16px; text-align: justify; }
.about-grid h3 { font-size: 26px; font-weight: 800; color: var(--ink); margin-bottom: 20px; }
.quote-card {
  background: #fff; border: 1px solid var(--line); border-left: 4px solid;
  border-image: linear-gradient(180deg, #4B7BFF, #7C5CFF) 1;
  border-radius: 12px; padding: 28px; box-shadow: var(--shadow-md);
}
.quote-card p { font-size: 16px; color: var(--ink); font-weight: 600; line-height: 1.9; }
.quote-card span { display: block; margin-top: 12px; font-size: 13px; color: var(--muted); }

.mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mission-card {
  text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: 20px; padding: 40px 28px; transition: all .3s;
}
.mission-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.mission-card .ico {
  width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 18px;
  background: var(--grad); color: #fff; font-size: 28px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(75,123,255,.35);
}
.mission-card h3 { font-size: 19px; color: var(--ink); margin-bottom: 10px; }
.mission-card p { font-size: 14px; color: var(--muted); }

/* ---------- 客群表 ---------- */
.aud-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.aud-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; transition: all .3s; }
.aud-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.aud-head { padding: 24px 28px; background: var(--grad); color: #fff; }
.aud-head h3 { font-size: 20px; font-weight: 700; }
.aud-head p { font-size: 13px; opacity: .9; margin-top: 6px; }
.aud-body { padding: 24px 28px 28px; }
.aud-body h4 { font-size: 13px; color: var(--primary-deep); letter-spacing: 1px; margin: 14px 0 8px; font-weight: 700; }
.aud-body p, .aud-body li { font-size: 13.5px; color: var(--muted); }
.aud-body ul { list-style: none; }
.aud-body li { padding: 4px 0 4px 18px; position: relative; }
.aud-body li::before { content: "·"; position: absolute; left: 4px; color: var(--primary); font-weight: 800; }

/* ---------- 页脚 ---------- */
.footer { background: #0C1230; color: rgba(255,255,255,.72); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 44px; padding-bottom: 48px; }
.footer .logo { color: #fff; margin-bottom: 18px; }
.footer .logo small { color: rgba(255,255,255,.5); }
.footer p { font-size: 13.5px; line-height: 1.9; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 18px; font-weight: 700; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { font-size: 13.5px; transition: .2s; }
.footer ul a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; font-size: 13.5px; margin-bottom: 12px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  font-size: 12.5px; color: rgba(255,255,255,.45);
}

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: all .7s cubic-bezier(.2,.7,.3,1); }
.reveal.visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; } .reveal.d4 { transition-delay: .32s; }

/* ---------- 品牌logo图 ---------- */
.logo-img {
  width: 36px; height: 36px; object-fit: contain; border-radius: 9px; flex-shrink: 0;
}
.footer .logo-img {
  width: 30px; height: 30px; background: #fff; padding: 4px; border-radius: 9px;
  box-sizing: content-box;
}

/* ---------- 导航下拉菜单 ---------- */
.nav-links > li { position: relative; }
.nav-links .caret {
  display: inline-block; font-style: normal; font-size: 11px; margin-left: 4px;
  transition: transform .25s; vertical-align: 1px;
}
.has-drop:hover .caret, .has-drop.open .caret { transform: rotate(180deg); }
.dropdown {
  position: absolute; top: calc(100% + 12px); left: 50%;
  transform: translateX(-50%) translateY(10px);
  opacity: 0; visibility: hidden; pointer-events: none;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: var(--shadow-lg); padding: 16px; z-index: 99;
  display: grid; gap: 2px; min-width: 220px;
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
}
.has-drop:hover .dropdown, .has-drop.open .dropdown {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.dropdown::before {
  content: ""; position: absolute; top: -12px; left: 0; right: 0; height: 12px;
}
.dropdown.drop-products, .dropdown.drop-solutions {
  grid-template-columns: repeat(3, 1fr); gap: 6px 26px; width: 680px; min-width: 0; padding: 18px 20px;
}
.drop-group { display: flex; flex-direction: column; gap: 2px; }
.drop-group h5 {
  font-size: 11px; color: var(--muted); letter-spacing: 1.5px; font-weight: 700;
  padding: 8px 12px 6px; text-transform: uppercase;
}
.dropdown a {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px !important; border-radius: 10px;
  font-size: 14px !important; font-weight: 500; color: var(--text);
  white-space: nowrap; transition: all .18s;
}
.dropdown a:hover { background: var(--grad-soft); color: var(--primary-deep) !important; }
.dropdown a span:first-child { font-size: 16px; width: 20px; text-align: center; }

/* ---------- 客户墙跑马灯 ---------- */
.marquee {
  overflow: hidden; padding: 8px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee-track {
  display: flex; width: max-content;
  animation: marquee var(--dur, 32s) linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.mq-slow { --dur: 60s; }
@keyframes marquee { to { transform: translateX(-50%); } }
.m-cell {
  display: flex; align-items: center; gap: 13px; margin-right: 16px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 12px 24px 12px 13px; box-shadow: var(--shadow-sm);
  transition: all .25s;
}
.m-cell:hover { border-color: rgba(75,123,255,.4); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.m-cell .tile {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  color: #fff; font-size: 18px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: 0;
}
.m-cell b { font-size: 15px; color: var(--ink); font-weight: 700; white-space: nowrap; display: block; line-height: 1.4; }
.m-cell small { font-size: 12px; color: var(--muted); white-space: nowrap; display: block; }
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* ---------- Hero 电商运营示意图 ---------- */
.ops-flow { display: flex; flex-direction: column; }
.ops-stage {
  display: flex; align-items: center; gap: 14px;
  background: var(--grad-soft); border: 1px solid rgba(75,123,255,.18);
  border-radius: 14px; padding: 13px 18px;
}
.ops-stage .s-ico {
  width: 42px; height: 42px; border-radius: 12px; background: #fff;
  box-shadow: var(--shadow-sm); display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.ops-stage b { font-size: 15px; color: var(--ink); display: block; line-height: 1.5; }
.ops-stage small { font-size: 12px; color: var(--muted); }
.ops-arrow { text-align: center; color: var(--primary); font-weight: 800; padding: 5px 0; font-size: 15px; line-height: 1; }
.ops-loop {
  margin-top: 14px; text-align: center; font-size: 12.5px; color: var(--primary-deep);
  background: var(--grad-soft); border: 1px dashed rgba(75,123,255,.35);
  border-radius: 999px; padding: 8px 14px;
}

/* ---------- 产品/方案hub卡片链接 ---------- */
a.card { display: block; color: inherit; }
a.card:hover h3 { color: var(--primary-deep); }
.more-link { display: inline-block; margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--primary); }

/* ---------- 有赞产品数据见证 ---------- */
.yz-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.yz-stats .cell {
  text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: 16px; padding: 28px 16px; box-shadow: var(--shadow-sm);
  transition: all .3s;
}
.yz-stats .cell:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(75,123,255,.35); }
.yz-stats b { display: block; font-size: 30px; font-weight: 800; color: var(--primary-deep); line-height: 1.3; }
.yz-stats span { font-size: 13px; color: var(--muted); }

/* ---------- 有赞品牌风格模块 ---------- */
:root { --yz-blue: #155BD4; --yz-blue-deep: #0E48A8; --yz-blue-soft: #EEF4FF; }
.yz-banner {
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
  background: #fff; border: 1px solid #D8E4FA; border-radius: 18px;
  padding: 22px 30px; box-shadow: 0 8px 28px rgba(21, 91, 212, .10);
  position: relative; overflow: hidden;
}
.yz-banner::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px;
  background: linear-gradient(180deg, #155BD4, #4B7BFF);
}
.yz-brand { display: flex; align-items: center; gap: 14px; }
.yz-logo {
  width: 52px; height: 52px; border-radius: 13px; background: var(--yz-blue);
  color: #fff; font-size: 26px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(21, 91, 212, .35); flex-shrink: 0;
}
.yz-brand b { font-size: 24px; font-weight: 800; color: var(--yz-blue-deep); letter-spacing: 2px; line-height: 1.3; display: block; }
.yz-brand small { font-size: 11px; color: #6B7FA8; letter-spacing: 3px; font-weight: 600; display: block; }
.yz-slogan {
  font-size: 17px; font-weight: 800; color: var(--yz-blue);
  padding: 8px 22px; border-radius: 999px;
  background: var(--yz-blue-soft); border: 1px solid #CFE0FB;
  letter-spacing: 2px;
}
.yz-chips { display: flex; gap: 10px; flex-wrap: wrap; margin-left: auto; }
.yz-chips span {
  font-size: 12.5px; color: var(--yz-blue-deep); font-weight: 600;
  background: var(--yz-blue-soft); border: 1px solid #D8E4FA;
  padding: 6px 14px; border-radius: 999px;
}
.yz-partner {
  width: 100%; font-size: 13px; color: #6B7FA8; padding-top: 4px;
  border-top: 1px dashed #D8E4FA; margin-top: 2px;
}
.yz-partner b { color: var(--yz-blue-deep); }

/* 有赞页 sec-tag 蓝色化 */
.yz-page .sec-tag { color: var(--yz-blue); border-color: #CFE0FB; background: var(--yz-blue-soft); }
.yz-page .card:hover { border-color: rgba(21, 91, 212, .4); }
.yz-page .card .ico { border-color: #CFE0FB; }
.yz-page .mode-num, .yz-page .more-link { color: var(--yz-blue); }

/* ---------- 万联GEO页 ---------- */
.geo-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.geo-stats .g-cell {
  text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: 16px; padding: 26px 16px; box-shadow: var(--shadow-sm); transition: all .3s;
}
.geo-stats .g-cell:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.geo-stats b { display: block; font-size: 32px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.3; }
.geo-stats span { font-size: 13px; color: var(--muted); }
.crisis-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.crisis-card {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  padding: 32px 28px; transition: all .3s; position: relative;
}
.crisis-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.crisis-card .no {
  width: 46px; height: 46px; border-radius: 13px; font-size: 18px; font-weight: 800;
  color: #fff; display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.crisis-card h3 { font-size: 20px; color: var(--ink); margin-bottom: 10px; }
.crisis-card p { font-size: 14px; color: var(--muted); }
.step-flow { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; counter-reset: step; }
.step-flow .step {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 10px; text-align: center; position: relative; transition: all .3s;
}
.step-flow .step:hover { border-color: rgba(75,123,255,.4); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.step-flow .step i {
  width: 34px; height: 34px; border-radius: 50%; font-style: normal; font-weight: 800;
  background: var(--grad); color: #fff; font-size: 15px;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 10px;
}
.step-flow .step b { font-size: 13.5px; color: var(--ink); display: block; line-height: 1.5; }
.geo-case {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  padding: 28px; transition: all .3s;
}
.geo-case:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.geo-case h3 { font-size: 18px; color: var(--ink); margin-bottom: 4px; }
.geo-case .sub { font-size: 12.5px; color: var(--muted); margin-bottom: 12px; display: block; }
.geo-case p { font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.geo-case .delta b { font-size: 21px; font-weight: 800; color: var(--primary-deep); display: block; }
.geo-case .delta small { font-size: 12px; color: var(--muted); }
.geo-case .delta .to { color: #12B76A; font-size: 21px; font-weight: 800; }
.cert-card {
  background: #fff; border: 1px solid #D8E4FA; border-radius: 18px; padding: 30px;
  box-shadow: 0 8px 28px rgba(21, 91, 212, .08);
}
.cert-card .badge {
  display: inline-block; font-size: 12px; font-weight: 700; color: #fff;
  background: var(--yz-blue); border-radius: 999px; padding: 5px 14px; margin-bottom: 12px;
}
.cert-card h3 { font-size: 19px; color: var(--ink); margin-bottom: 10px; }
.cert-card p { font-size: 13.5px; color: var(--muted); }
.cert-card code {
  display: inline-block; background: var(--yz-blue-soft); color: var(--yz-blue-deep);
  border-radius: 6px; padding: 2px 8px; font-size: 12.5px; margin: 2px 2px;
}
@media (max-width: 1024px) {
  .step-flow { grid-template-columns: repeat(4, 1fr); }
  .geo-stats { grid-template-columns: repeat(2, 1fr); }
  .crisis-grid { grid-template-columns: 1fr; }
}

/* ---------- 有赞官网风格页 ---------- */
.yz-hero {
  background: linear-gradient(135deg, #0E48A8 0%, #155BD4 48%, #3D7EFF 100%);
  color: #fff; position: relative; overflow: hidden;
  padding: calc(var(--nav-h) + 68px) 0 88px;
}
.yz-hero::before {
  content: ""; position: absolute; inset: 0;
  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: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 90% at 70% 10%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 90% at 70% 10%, #000 30%, transparent 75%);
}
.yz-hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 90% 100%, rgba(255,255,255,.10), transparent 60%);
}
.yz-hero-inner { position: relative; display: grid; grid-template-columns: 1.02fr .98fr; gap: 56px; align-items: center; }
.yz-hero .crumb { color: rgba(255,255,255,.6); }
.yz-hero .crumb a { color: rgba(255,255,255,.85); }
.yz-hero-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; }
.yz-hero-brand img { height: 44px; width: auto; }
.yz-hero-brand .sep { width: 1px; height: 30px; background: rgba(255,255,255,.35); }
.yz-hero-brand b { display: block; color: #fff; font-size: 19px; font-weight: 800; letter-spacing: 2px; line-height: 1.3; }
.yz-hero-brand small { display: block; color: rgba(255,255,255,.72); font-size: 11.5px; letter-spacing: 1.5px; }
.yz-hero h1 { font-size: 44px; font-weight: 800; color: #fff; letter-spacing: 1px; line-height: 1.3; }
.yz-hero-slogan { font-size: 20px; font-weight: 600; color: rgba(255,255,255,.95); margin-top: 14px; }
.yz-hero-desc { font-size: 15px; color: rgba(255,255,255,.8); margin-top: 18px; max-width: 540px; line-height: 1.95; }
.yz-sellpoints { list-style: none; margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; }
.yz-sellpoints li {
  color: rgba(255,255,255,.94); font-size: 14px; font-weight: 500; padding-left: 26px; position: relative;
}
.yz-sellpoints li::before {
  content: "✓"; position: absolute; left: 0; top: 2px;
  width: 18px; height: 18px; border-radius: 50%;
  background: rgba(255,255,255,.22); color: #fff; font-size: 11px;
  display: flex; align-items: center; justify-content: center;
}
.yz-hero-actions { display: flex; gap: 16px; margin-top: 30px; flex-wrap: wrap; }
.yz-btn-light { background: #fff; color: var(--yz-blue); box-shadow: 0 8px 24px rgba(6,32,77,.3); }
.yz-btn-light:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(6,32,77,.4); }
.yz-btn-ghost { background: rgba(255,255,255,.12); color: #fff; border: 1.5px solid rgba(255,255,255,.55); }
.yz-btn-ghost:hover { background: rgba(255,255,255,.22); transform: translateY(-2px); }
.yz-hero-img {
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.10); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.25); border-radius: 22px; padding: 26px;
  box-shadow: 0 18px 50px rgba(6,32,77,.35);
}
.yz-hero-img img { max-height: 460px; max-width: 100%; width: auto; border-radius: 14px; box-shadow: 0 12px 40px rgba(6,32,77,.45); }
.yz-hero-img.wide img { max-height: 400px; }
.yz-trust {
  background: #fff; border-bottom: 1px solid var(--line); padding: 22px 0; text-align: center;
  font-size: 14px; color: var(--muted); letter-spacing: .5px;
}
.yz-trust b { color: var(--yz-blue-deep); font-size: 16px; }
.yz-trust .sep { margin: 0 14px; color: var(--line); }
/* 图文场景区块（模仿官网图文交替） */
.yz-show { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.yz-show .txt h3 { font-size: 30px; font-weight: 800; color: var(--ink); line-height: 1.4; margin-bottom: 6px; }
.yz-show .txt .sub { color: var(--yz-blue); font-size: 14px; font-weight: 700; letter-spacing: 1px; margin-bottom: 18px; }
.yz-show .txt p { font-size: 14.5px; color: var(--muted); line-height: 2; text-align: justify; }
.yz-show .pic img {
  width: 100%; border-radius: 18px; box-shadow: 0 16px 48px rgba(21, 91, 212, .16);
  border: 1px solid var(--line);
}
.yz-show + .yz-show { margin-top: 64px; }
.yz-case { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 28px; transition: all .3s; }
.yz-case:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(21,91,212,.3); }
.yz-case h3 { font-size: 18px; color: var(--ink); margin-bottom: 3px; }
.yz-case .sub { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 12px; }
.yz-case p { font-size: 13.5px; color: var(--muted); }
.yz-case .m { display: flex; gap: 28px; padding-top: 14px; margin-top: 14px; border-top: 1px dashed var(--line); flex-wrap: wrap; }
.yz-case .m b { display: block; font-size: 22px; font-weight: 800; color: var(--yz-blue); line-height: 1.3; }
.yz-case .m span { font-size: 12px; color: var(--muted); }
.yz-cta { background: linear-gradient(135deg, #0E48A8, #155BD4); }
@media (max-width: 1024px) {
  .yz-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .yz-hero h1 { font-size: 34px; }
  .yz-show { grid-template-columns: 1fr; gap: 30px; }
}

/* ---------- 畅捷通橙色风格页 ---------- */
:root { --cjt-orange: #FF6A00; --cjt-orange-deep: #D65400; --cjt-soft: #FFF3E8; }
.cjt-hero { background: linear-gradient(135deg, #C2410C 0%, #EA580C 45%, #FF8A3D 100%); }
.cjt-page .sec-tag { color: var(--cjt-orange-deep); border-color: #FFD9BC; background: var(--cjt-soft); }
.cjt-page .card:hover { border-color: rgba(234, 88, 12, .4); }
.cjt-page .mode-num { color: var(--cjt-orange); }
.cjt-page .yz-stats b { color: var(--cjt-orange-deep); }
.cjt-page .yz-case .m b { color: var(--cjt-orange-deep); }
.cjt-page .yz-case:hover { border-color: rgba(234, 88, 12, .3); }
.cjt-cta { background: linear-gradient(135deg, #C2410C, #EA580C); }
.cjt-trust b { color: var(--cjt-orange-deep); }

/* ---------- 官方合作背书区块 ---------- */
.why-badges { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why-badge {
  text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: 18px; padding: 34px 22px; transition: all .3s; position: relative;
}
.why-badge:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.why-badge .wb-ico {
  width: 62px; height: 62px; margin: 0 auto 16px; border-radius: 16px;
  background: var(--grad); color: #fff; font-size: 26px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(75,123,255,.35);
}
.why-badge h3 { font-size: 17px; color: var(--ink); margin-bottom: 8px; line-height: 1.5; }
.why-badge p { font-size: 13px; color: var(--muted); }
.why-badge .auth {
  display: inline-block; margin-top: 10px; font-size: 11.5px; font-weight: 700;
  color: var(--primary-deep); background: var(--grad-soft);
  border: 1px solid rgba(75,123,255,.25); border-radius: 999px; padding: 3px 12px;
}
.why-badge.yz .wb-ico { background: linear-gradient(135deg, #D65400, #FF6A00); box-shadow: 0 8px 20px rgba(255,106,0,.35); }
.why-badge.yz .auth { color: #D65400; background: #FFF3E8; border-color: #FFD9BC; }
.why-badge.cjt .wb-ico { background: linear-gradient(135deg, #C2410C, #EA580C); box-shadow: 0 8px 20px rgba(234,88,12,.35); }
.why-badge.cjt .auth { color: #C2410C; background: #FFF3E8; border-color: #FFD9BC; }

/* ---------- 管理后台 ---------- */
.adm-body { background: #F2F4F8; font-family: "PingFang SC","Microsoft YaHei",sans-serif; margin: 0; color: #344054; }
.adm-top {
  position: sticky; top: 0; z-index: 50; background: #101828; color: #fff;
  display: flex; align-items: center; gap: 14px; padding: 12px 22px; flex-wrap: wrap;
}
.adm-top h1 { font-size: 17px; margin: 0; font-weight: 700; }
.adm-top .sp { flex: 1; }
.adm-select, .adm-btn {
  border: none; border-radius: 8px; padding: 9px 16px; font-size: 13.5px; cursor: pointer; font-weight: 600;
}
.adm-select { background: #fff; color: #101828; min-width: 240px; }
.adm-btn { background: #4B7BFF; color: #fff; }
.adm-btn:hover { background: #3560E0; }
.adm-btn.warn { background: #E84A3F; }
.adm-btn.ghost { background: rgba(255,255,255,.15); color: #fff; }
.adm-wrap { display: grid; grid-template-columns: 460px 1fr; gap: 0; height: calc(100vh - 57px); }
.adm-panel { overflow-y: auto; padding: 20px 22px 60px; }
.adm-frame { border: none; width: 100%; height: 100%; background: #fff; }
.adm-group { background: #fff; border: 1px solid #E4E8EF; border-radius: 14px; padding: 18px 20px; margin-bottom: 16px; }
.adm-group h3 { margin: 0 0 4px; font-size: 15px; color: #101828; }
.adm-group .hint { font-size: 12px; color: #98A2B3; margin-bottom: 12px; }
.adm-field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.adm-field label { font-size: 12.5px; font-weight: 600; color: #475467; }
.adm-field input[type=text] {
  border: 1px solid #D0D5DD; border-radius: 8px; padding: 9px 12px; font-size: 13.5px;
}
.adm-field input:focus { outline: 2px solid rgba(75,123,255,.35); border-color: #4B7BFF; }
.adm-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.adm-cell-card { border: 1px solid #E4E8EF; border-radius: 10px; padding: 12px; margin-bottom: 10px; background: #FAFBFC; }
.adm-cell-card .ttl { font-size: 12px; font-weight: 700; color: #101828; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.adm-cell-card .swatch { width: 22px; height: 22px; border-radius: 6px; border: 1px solid #E4E8EF; }
.adm-changed { border-left: 3px solid #4B7BFF; }
.adm-toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: #101828; color: #fff; font-size: 13.5px; padding: 11px 22px;
  border-radius: 999px; opacity: 0; pointer-events: none; transition: opacity .3s; z-index: 99;
}
.adm-toast.show { opacity: 1; }
@media (max-width: 1024px) { .adm-wrap { grid-template-columns: 1fr; height: auto; } .adm-frame { height: 70vh; } }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.contact-card {
  text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: 20px; padding: 44px 30px; transition: all .3s;
}
.contact-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.contact-card .c-ico {
  width: 68px; height: 68px; margin: 0 auto 20px; border-radius: 18px;
  background: var(--grad); color: #fff; font-size: 30px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(75,123,255,.35);
}
.contact-card h3 { font-size: 20px; color: var(--ink); margin-bottom: 8px; }
.contact-card p { font-size: 14px; color: var(--muted); }
.contact-card .val { font-size: 19px; font-weight: 800; color: var(--primary-deep); margin: 8px 0 4px; letter-spacing: .5px; }
.qr-wrap { margin-top: 18px; }
.qr-wrap img {
  width: 190px; height: 190px; object-fit: contain; border: 1px solid var(--line);
  border-radius: 16px; padding: 8px; background: #fff; margin: 0 auto;
}
.qr-wrap figcaption { font-size: 12.5px; color: var(--muted); margin-top: 10px; }

/* ---------- 锚点定位偏移 ---------- */
[id] { scroll-margin-top: 96px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero h1 { font-size: 40px; }
  .grid.products, .grid.solutions, .mode-grid, .mission-grid, .aud-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .logo-wall { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero { padding: calc(var(--nav-h) + 48px) 0 72px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero h1 { font-size: 32px; }
  .page-hero h1 { font-size: 30px; }
  .sec-title { font-size: 27px; }
  .grid.products, .grid.solutions, .mode-grid, .mission-grid, .aud-grid,
  .case-grid, .stats-grid, .contact-grid { grid-template-columns: 1fr; }
  .logo-wall { grid-template-columns: repeat(3, 1fr); }
  .yz-stats { grid-template-columns: repeat(2, 1fr); }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 16px; gap: 4px; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { text-align: center; }
  .nav-toggle { display: flex; }
  .nav-cta .btn { display: none; }
  .nav-links .dropdown {
    position: static; transform: none; opacity: 1; visibility: visible; pointer-events: auto;
    display: none; box-shadow: none; border: none; padding: 2px 8px 10px;
    min-width: 0; width: 100%; background: transparent;
  }
  .nav-links .has-drop.open .dropdown { display: grid; }
  .nav-links .dropdown.drop-products, .nav-links .dropdown.drop-solutions { grid-template-columns: 1fr; width: 100%; }
  .nav-links .dropdown a { padding: 10px 14px !important; }
  .float-chip { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- 手机端适配（≤480px） ---------- */
@media (max-width: 480px) {
  html, body { overflow-x: hidden; }
  .container { width: 94%; }
  .section { padding: 48px 0; }
  .section.soft { padding: 48px 0; }
  .sec-title { font-size: 22px; }
  .sec-desc { font-size: 13.5px; }
  .sec-head { margin-bottom: 36px; }
  .sec-tag { font-size: 11px; padding: 5px 13px; letter-spacing: 1px; }

  /* 导航 */
  .logo { font-size: 16px; gap: 8px; }
  .logo-img { width: 30px; height: 30px; }
  .logo small { display: none; }
  .nav-links.open { max-height: 78vh; overflow-y: auto; }
  .nav-cta { gap: 8px; }

  /* Hero */
  .hero { padding: calc(var(--nav-h) + 36px) 0 56px; }
  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 14px; }
  .hero-actions { gap: 10px; }
  .hero-actions .btn { flex: 1; justify-content: center; padding: 12px 14px; font-size: 14px; }
  .hero-meta { gap: 18px; margin-top: 30px; }
  .hero-meta .item b { font-size: 19px; }
  .hero-meta .item span { font-size: 11.5px; }
  .glass-card { padding: 16px; border-radius: 14px; }
  .dash-stats { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .dash-stats .cell b { font-size: 15px; }
  .dash-stats .cell span { font-size: 9.5px; }
  .ops-stage { padding: 10px 12px; gap: 10px; border-radius: 11px; }
  .ops-stage .s-ico { width: 34px; height: 34px; font-size: 16px; border-radius: 9px; }
  .ops-stage b { font-size: 13.5px; }
  .ops-stage small { font-size: 10.5px; }
  .ops-arrow { padding: 3px 0; font-size: 13px; }
  .ops-loop { font-size: 11px; padding: 7px 10px; }

  /* 子页头 */
  .page-hero { padding: calc(var(--nav-h) + 44px) 0 52px; }
  .page-hero h1 { font-size: 25px; }
  .page-hero p { font-size: 13.5px; }
  .crumb { font-size: 11.5px; flex-wrap: wrap; }

  /* 卡片 */
  .card { padding: 22px 18px; }
  .card p { min-height: 0; font-size: 13px; }
  .tags span { font-size: 11px; }
  .plat-top { padding: 18px 16px; gap: 10px; }
  .plat-top .ico { width: 40px; height: 40px; font-size: 18px; }
  .plat-body { padding: 16px 16px 20px; }
  .plat-links a { font-size: 12.5px; padding: 8px 10px; }
  .mode-card { padding: 26px 20px; }
  .mode-num { font-size: 32px; top: 16px; right: 18px; }

  /* 有赞/畅捷通 hero */
  .yz-hero { padding: calc(var(--nav-h) + 40px) 0 52px; }
  .yz-hero h1 { font-size: 27px; }
  .yz-hero-slogan { font-size: 15.5px; }
  .yz-hero-desc { font-size: 13px; line-height: 1.8; }
  .yz-sellpoints { grid-template-columns: 1fr; font-size: 13px; }
  .yz-hero-actions .btn { flex: 1; justify-content: center; padding: 11px 12px; font-size: 13.5px; }
  .yz-hero-img { padding: 12px; border-radius: 14px; }
  .yz-hero-img img { max-height: 300px; border-radius: 10px; }
  .yz-hero-brand img { height: 30px; }
  .yz-trust { font-size: 11px; padding: 14px 0; line-height: 2; }
  .yz-trust .sep { margin: 0 6px; }
  .yz-stats, .geo-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .yz-stats b, .geo-stats b { font-size: 22px; }
  .yz-stats span, .geo-stats span { font-size: 11px; }
  .yz-show .txt h3 { font-size: 21px; }

  /* 案例墙滚动 */
  .m-cell { padding: 8px 12px 8px 8px; gap: 8px; margin-right: 10px; border-radius: 11px; }
  .m-cell .tile { width: 34px; height: 34px; font-size: 14px; border-radius: 9px; }
  .m-cell b { font-size: 12.5px; }
  .m-cell small { font-size: 10px; }
  .marquee { --dur: 26s; }

  /* 流程步骤 / 三重危机 */
  .step-flow { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .step-flow .step { padding: 12px 6px; }
  .step-flow .step b { font-size: 12px; }
  .crisis-card { padding: 24px 18px; }

  /* 认证卡 */
  .why-badges { grid-template-columns: 1fr; gap: 14px; }
  .why-badge { padding: 26px 18px; }

  /* GEO */
  .geo-case .delta b, .geo-case .delta .to { font-size: 17px; }

  /* CTA / 页脚 */
  .cta-band { padding: 56px 0; }
  .cta-band h2 { font-size: 23px; }
  .cta-band p { font-size: 13px; }
  .cta-band .btn { padding: 12px 28px; font-size: 14px; }
  .footer { padding-top: 44px; }
  .footer-grid { gap: 26px; }
  .footer p { font-size: 12.5px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 4px; }

  /* 联系页 */
  .contact-card { padding: 32px 18px; }
  .contact-card .val { font-size: 17px; }
  .qr-wrap img { width: 150px; height: 150px; }
}

/* ---------- 页脚微信二维码 ---------- */
.footer-qr {
  margin-top: 12px; display: inline-block; text-align: center;
}
.footer-qr img {
  width: 110px; height: 110px; object-fit: contain; display: block;
  background: #fff; border: 1px solid rgba(255,255,255,.25); border-radius: 10px; padding: 5px;
}
.footer-qr span { font-size: 11.5px; color: rgba(255,255,255,.55); display: block; margin-top: 6px; }