/* ==========================================================================
   智合聚通 · 固定电话号码认证官网 全站样式 assets/css/site.css
   规范依据：21-db/design.md v1.0（品牌主色 #3470ff 系）
   配套：assets/css/float.css（右侧咨询组件样式，单独引用）
   ========================================================================== */

/* ---------- 1. Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #5B6472;
  background: #FFFFFF;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #3470FF; text-decoration: none; transition: color .3s ease; }
a:hover { color: #2655D9; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; color: #232A36; font-weight: 600; line-height: 1.3; }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid #3470FF; outline-offset: 2px; }

/* ---------- 2. Design Tokens ---------- */
:root {
  --brand-600: #3470FF;
  --brand-500: #5A8BFF;
  --brand-700: #2655D9;
  --brand-100: #EAF0FF;
  --brand-50:  #F5F8FF;
  --accent:    #4C9B8E;
  --n0: #FFFFFF;
  --n1: #F7F8FA;
  --n2: #EFF1F5;
  --n3: #E2E6ED;
  --n4: #B4BDC9;
  --n5: #8A93A3;
  --n6: #5B6472;
  --n7: #232A36;
  --n8: #141922;
  --r-md: 12px;
  --r-lg: 16px;
  --r-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(20,25,34,.06);
  --shadow-md: 0 6px 18px rgba(20,25,34,.08);
  --shadow-lg: 0 12px 28px rgba(52,112,255,.14);
  --shadow-blue: 0 8px 22px rgba(52,112,255,.22);
  --container: 1200px;
  --gap: 24px;
}

/* ---------- 3. Layout ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.section { padding: 88px 0; }
.section-sm { padding: 56px 0; }
.section-white { background: var(--n0); }
.section-gray { background: var(--n1); }
.section-blue { background: linear-gradient(180deg, var(--brand-50), var(--brand-100)); }
.section-dark { background: var(--n8); color: #B4BDC9; }

.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(26px, 3vw, 38px); line-height: 1.25; margin-bottom: 12px; letter-spacing: .5px; }
.section-head .sub { font-size: 15px; color: var(--n5); line-height: 1.7; }
.section-head .sub, .section-head .desc { margin: 0; }
.section-head .line { width: 44px; height: 3px; border-radius: 3px; background: var(--brand-600); margin: 14px auto 0; }
.section-head.left { text-align: left; margin-left: 0; }
.section-head.left .line { margin-left: 0; }

/* ---------- 4. Typography helpers ---------- */
.h1 { font-size: clamp(34px, 4.2vw, 52px); line-height: 1.15; letter-spacing: .5px; }
.h2 { font-size: clamp(26px, 3vw, 38px); }
.h3 { font-size: 22px; }
.h4 { font-size: 18px; }
.text-lead { font-size: 17px; color: var(--n6); line-height: 1.8; }
.text-sm { font-size: 14px; color: var(--n5); }
.text-xs { font-size: 12px; color: var(--n5); }
.center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-40 { margin-top: 40px; }
.note { font-size: 12.5px; color: var(--n5); }
.note .tag { display: inline-block; background: var(--brand-100); color: var(--brand-700); padding: 2px 10px; border-radius: var(--r-pill); font-size: 12px; }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; border-radius: var(--r-pill); border: 0;
  font-size: 15px; font-weight: 500; line-height: 1;
  padding: 13px 28px; transition: all .3s ease; white-space: nowrap;
}
.btn-primary { background: var(--brand-600); color: #fff; box-shadow: var(--shadow-blue); }
.btn-primary:hover { background: var(--brand-500); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(52,112,255,.28); }
.btn-primary:active { background: var(--brand-700); }
.btn-outline { background: transparent; color: var(--brand-600); border: 1px solid var(--brand-600); }
.btn-outline:hover { background: var(--brand-100); color: var(--brand-700); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--brand-700); box-shadow: 0 8px 20px rgba(0,0,0,.18); }
.btn-light:hover { background: var(--brand-100); color: var(--brand-700); transform: translateY(-2px); }
.btn-ghost-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.65); }
.btn-ghost-light:hover { background: rgba(255,255,255,.12); color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 9px 18px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* ---------- 6. Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--n3); box-shadow: 0 6px 18px rgba(20,25,34,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--n7); }
.logo img.logo-img { height: 30px; width: auto; display: block; }
.logo-text { font-size: 18px; font-weight: 600; color: var(--n7); letter-spacing: .5px; line-height: 1.2; }
.logo-sub { display: block; font-size: 10.5px; font-weight: 400; color: var(--n5); letter-spacing: 1.5px; margin-top: -1px; }

.site-nav ul { display: flex; align-items: center; gap: 2px; }
.site-nav a {
  display: inline-block; padding: 7px 11px; font-size: 14px; color: var(--n6);
  border-radius: var(--r-pill); transition: all .3s ease;
}
.site-nav a:hover { color: var(--brand-600); background: var(--brand-100); }
.site-nav a.active { color: var(--brand-600); font-weight: 600; background: var(--brand-100); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-tel { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; color: var(--n7); }
.header-tel:hover { color: var(--brand-600); }
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 0; background: transparent;
  border-radius: 10px; position: relative;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--n7); margin: 4px auto; border-radius: 2px; transition: all .3s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu { display: none; }
.mobile-menu.open { display: block; background: #fff; border-top: 1px solid var(--n3); box-shadow: 0 16px 28px rgba(20,25,34,.08); padding: 12px 20px 20px; max-height: calc(100vh - 64px); overflow-y: auto; }
.mobile-menu ul { display: block; }
.mobile-menu a { display: block; padding: 13px 12px; font-size: 16px; color: var(--n6); border-radius: 10px; }
.mobile-menu a:hover, .mobile-menu a.active { color: var(--brand-600); background: var(--brand-100); }
.mobile-menu .m-cta { display: flex; gap: 10px; padding: 12px 12px 4px; flex-wrap: wrap; }
.mobile-menu .m-tel { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 12px; font-weight: 600; color: var(--n7); font-size: 16px; }

/* ---------- 7. Footer ---------- */
.site-footer { background: var(--n8); color: #AEB6C3; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1.1fr 1fr 1.2fr 1.5fr; gap: 32px; padding-bottom: 44px; }
.footer-col h3, .footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; letter-spacing: .5px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: #AEB6C3; font-size: 13.5px; }
.footer-col a:hover { color: var(--brand-500); }
.footer-brand .logo img.logo-img { height: 34px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 13.5px; line-height: 1.8; margin-top: 14px; color: #8A93A3; }
.footer-contact li { display: flex; gap: 8px; font-size: 13.5px; margin-bottom: 12px; color: #C3CAD6; }
.footer-contact a { color: #C3CAD6; }
.footer-contact .qr-wrap { margin-top: 10px; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; }
.footer-contact img.qr { width: 88px; height: 88px; border-radius: 10px; background: #fff; padding: 6px; }
.footer-contact .qr-tip { font-size: 12px; color: #8A93A3; line-height: 1.6; }
.footer-links-title { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 12px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; }
.footer-bottom-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; font-size: 13px; color: #8A93A3; }

/* ---------- 8. Page Hero & Breadcrumb ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--brand-50) 0%, var(--brand-100) 100%);
  padding: 64px 0 72px; text-align: center; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(90,139,255,.18), transparent 70%);
  top: -160px; right: -120px; pointer-events: none;
}
.page-hero h1 { font-size: clamp(30px, 3.6vw, 44px); margin: 14px 0 12px; position: relative; z-index: 1; }
.page-hero .sub { font-size: 16px; color: var(--n6); position: relative; z-index: 1; }
.breadcrumb { font-size: 13px; color: var(--n5); position: relative; z-index: 1; }
.breadcrumb a { color: var(--n5); }
.breadcrumb a:hover { color: var(--brand-600); }
.breadcrumb .sep { margin: 0 8px; color: var(--n4); }

/* ---------- 9. Cards ---------- */
.card {
  background: var(--n0); border-radius: var(--r-lg); padding: 28px 26px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--n3);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--brand-100); color: var(--brand-600); margin-bottom: 16px;
}
.card-icon img { width: 30px; height: 30px; object-fit: contain; }
.card-icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--n6); line-height: 1.75; }
.card .card-more { display: inline-flex; align-items: center; gap: 4px; margin-top: 14px; font-size: 14px; font-weight: 500; color: var(--brand-600); }
.card .card-more:hover { color: var(--brand-700); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }

/* ---------- 10. Badges / chips / 数据卡 ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px;
  background: #fff; border: 1px solid var(--n3); border-radius: var(--r-pill);
  font-size: 14px; color: var(--n7); transition: all .3s ease;
}
.chip:hover { border-color: var(--brand-600); color: var(--brand-600); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand-600); }
.chip-solid { background: var(--brand-100); border-color: transparent; color: var(--brand-700); }
.badge { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; padding: 3px 10px; border-radius: var(--r-pill); font-weight: 500; }
.badge-ok { background: rgba(76,155,142,.12); color: var(--accent); }
.badge-brand { background: var(--brand-100); color: var(--brand-700); }

/* 数据亮点卡 */
.stats-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px 40px; }
.stat-item { text-align: center; }
.stat-item .num { font-size: clamp(28px, 4vw, 48px); font-weight: 700; color: var(--brand-600); line-height: 1.1; letter-spacing: .5px; }
.stat-item .num .u { font-size: 15px; font-weight: 600; color: var(--brand-600); margin-left: 2px; }
.stat-item .lb { font-size: 13.5px; color: var(--n5); margin-top: 4px; }

.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.stat-card { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 26px 22px; text-align: center; box-shadow: var(--shadow-sm); transition: all .3s ease; }
.stat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); }
.stat-card .num { font-size: clamp(26px, 3vw, 38px); font-weight: 700; color: var(--brand-600); line-height: 1.15; }
.stat-card .lb { font-size: 13.5px; color: var(--n5); margin-top: 6px; }

/* ---------- 11. Accordion (FAQ) ---------- */
.acc { max-width: 860px; margin: 0 auto; }
.acc-item { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-md); margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s ease, border-color .3s ease; }
.acc-item.is-open { border-color: var(--brand-600); box-shadow: var(--shadow-sm); }
.acc-btn {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: transparent; border: 0; text-align: left; padding: 18px 22px;
  font-size: 16px; font-weight: 600; color: var(--n7);
}
.acc-btn .acc-icon { flex: 0 0 22px; width: 22px; height: 22px; border-radius: 50%; background: var(--brand-100); color: var(--brand-600); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; transition: transform .3s ease; }
.acc-item.is-open .acc-icon { transform: rotate(45deg); background: var(--brand-600); color: #fff; }
.acc-panel { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.acc-panel-inner { padding: 0 22px 20px; font-size: 14.5px; color: var(--n6); line-height: 1.85; }

/* ---------- 12. Flow steps ---------- */
.steps-flow { display: flex; gap: 0; }
.step { flex: 1; text-align: center; position: relative; padding: 0 12px; }
.step::after {
  content: ""; position: absolute; top: 30px; right: -18px; width: 36px; height: 2px;
  background: linear-gradient(90deg, var(--brand-600), var(--brand-100)); border-radius: 2px;
}
.step:last-child::after { display: none; }
.step .step-num {
  width: 60px; height: 60px; margin: 0 auto 14px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700;
  box-shadow: var(--shadow-blue); position: relative; z-index: 1;
}
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--n5); line-height: 1.7; }

/* ---------- 13. Timeline ---------- */
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 34px; top: 12px; bottom: 12px; width: 2px; background: linear-gradient(180deg, var(--brand-600), var(--brand-100)); }
.tl-item { position: relative; padding: 0 0 36px 96px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-num {
  position: absolute; left: 8px; top: 0; width: 54px; height: 54px; border-radius: 50%;
  background: #fff; border: 2px solid var(--brand-600); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px;
}
.tl-card { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 24px 26px; box-shadow: var(--shadow-sm); }
.tl-card h3 { font-size: 18px; margin-bottom: 8px; }
.tl-card .tl-tip { margin-top: 10px; font-size: 13px; color: var(--accent); background: rgba(76,155,142,.08); border-radius: 8px; padding: 8px 12px; display: inline-block; }

/* ---------- 14. Tables ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--r-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--n3); }
table.compare { width: 100%; border-collapse: collapse; background: #fff; table-layout: fixed; min-width: 640px; }
table.compare th, table.compare td { padding: 14px 16px; font-size: 14px; text-align: center; border-bottom: 1px solid var(--n2); }
table.compare thead th { background: var(--brand-100); color: var(--brand-700); font-weight: 600; }
table.compare tbody th { text-align: left; font-weight: 500; color: var(--n6); }
table.compare tr:last-child td { border-bottom: 0; }
table.compare .yes { color: var(--accent); font-weight: 700; }
table.compare .no { color: var(--n4); }

/* ---------- 15. Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); align-items: stretch; }
.price-card { background: #fff; border: 1px solid var(--n3); border-radius: 20px; padding: 32px 28px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: all .3s ease; }
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.price-card .p-name { font-size: 18px; font-weight: 600; color: var(--n7); }
.price-card .p-for { font-size: 13px; color: var(--n5); margin: 6px 0 18px; }
.price-card .p-price { font-size: 26px; font-weight: 700; color: var(--brand-600); margin-bottom: 4px; }
.price-card .p-price small { font-size: 13px; font-weight: 400; color: var(--n5); }
.price-card ul { margin: 20px 0 24px; flex: 1; }
.price-card li { display: flex; gap: 8px; font-size: 14px; color: var(--n6); padding: 6px 0; }
.price-card li::before { content: "✓"; color: var(--accent); font-weight: 700; flex: 0 0 auto; }
.price-card.hot { border: 2px solid var(--brand-600); position: relative; }
.price-card.hot .p-flag { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--brand-600); color: #fff; font-size: 12px; padding: 3px 14px; border-radius: var(--r-pill); white-space: nowrap; }

/* ---------- 16. 认证前后对比区块 ---------- */
.compare-panel { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); }
.compare-col { border-radius: var(--r-lg); padding: 32px 28px; }
.compare-col.before { background: #fff; border: 1px solid var(--n3); box-shadow: var(--shadow-sm); }
.compare-col.after { background: var(--brand-100); border: 1px solid var(--brand-100); }
.compare-col .cc-label { font-size: 17px; font-weight: 600; color: var(--n7); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.compare-col .cc-label .tag { font-size: 11px; padding: 2px 10px; border-radius: var(--r-pill); }
.tag-before { background: var(--n2); color: var(--n5); }
.tag-after { background: rgba(76,155,142,.14); color: var(--accent); }
.compare-col ul li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--n6); padding: 9px 0; line-height: 1.6; }
.compare-col ul li img { width: 18px; height: 18px; flex: 0 0 18px; margin-top: 4px; }
.compare-col ul li b { color: var(--n7); font-weight: 600; }

.vs-pics { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.vs-pic { text-align: center; }
.vs-pic img.phone-shot { max-width: 240px; margin: 0 auto; }
.vs-pic .vs-label { margin-top: 14px; font-size: 15px; font-weight: 600; color: var(--n7); }
.vs-pic .vs-label .tag { margin-left: 6px; }
.vs-big { margin-top: 40px; text-align: center; }
.vs-big img { max-width: 720px; margin: 0 auto; border-radius: 18px; box-shadow: var(--shadow-md); }

/* ---------- 17. Home Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--brand-50) 0%, var(--brand-100) 55%, #E9F2FF 100%);
  position: relative; overflow: hidden; padding: 76px 0 88px;
}
.hero::before {
  content: ""; position: absolute; width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, rgba(90,139,255,.16), transparent 68%);
  left: -180px; top: -180px; animation: floatGlow 6s ease-in-out infinite alternate;
}
.hero::after {
  content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(76,155,142,.10), transparent 68%);
  right: -160px; bottom: -160px; animation: floatGlow 7s ease-in-out infinite alternate-reverse;
}
@keyframes floatGlow { from { transform: translateY(0); } to { transform: translateY(22px); } }
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(34px, 4.6vw, 54px); line-height: 1.15; margin-bottom: 18px; letter-spacing: .5px; }
.hero h1 .hl { color: var(--brand-600); font-size: 30px; }
.hero .hero-sub { max-width: 620px; font-size: 17px; color: var(--n6); line-height: 1.85; margin-bottom: 26px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 12px 28px; margin: 30px 0 8px; font-size: 14px; color: var(--n6); }
.hero-points li { display: inline-flex; align-items: center; gap: 8px; }
.hero-points .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand-600); flex: 0 0 8px; }
.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual img.hero-phone { max-width: 520px; width: 100%; border-radius: 20px; box-shadow: 0 24px 48px rgba(20,25,34,.18); animation: floatPhone 5s ease-in-out infinite alternate; }
@keyframes floatPhone { from { transform: translateY(0); } to { transform: translateY(-12px); } }
.hero .btn-row { justify-content: flex-start; }

/* ---------- 17.1 Hero 来电展示动效（自研 hero-call，复刻官网风格） ---------- */
.hero-call-visual { position: relative; width: 100%; display: flex; justify-content: center; padding: 24px 0; }
.hero-call-phone {
  position: relative; width: 244px; height: 500px; flex: 0 0 244px;
  padding: 0; border: 4px solid #17213b; border-radius: 34px; background: #17213b;
  box-shadow: 0 24px 48px rgba(24,63,145,.22);
}
.hero-call-screen {
  position: relative; height: 100%; overflow: hidden; border-radius: 30px;
  background: linear-gradient(160deg, #12306e, #3470ff 62%, #89c2ff); color: #fff;
}
.hero-call-status { display: flex; justify-content: space-between; padding: 14px 16px 0; font-size: 10px; font-weight: 700; }
.hero-call-status span:last-child { display: flex; gap: 5px; align-items: center; }
.hero-call-status svg { width: 12px; height: 12px; }
.hero-call-state { position: absolute; top: 84px; left: 16px; right: 16px; text-align: center; animation: heroCallSwitch 4s infinite ease-in-out; }
.hero-call-state.hero-call-unknown { animation-delay: -2s; opacity: 0; }
.hero-call-avatar {
  display: flex; align-items: center; justify-content: center; width: 76px; height: 76px;
  margin: 0 auto 16px; overflow: hidden; border-radius: 50%; background: #fff; color: #3470ff;
  box-shadow: 0 0 0 10px rgba(255,255,255,.14), 0 0 0 20px rgba(255,255,255,.08);
  animation: heroCallRing 1.8s infinite ease-in-out;
}
.hero-call-avatar img { width: 100%; height: 100%; padding: 12px; object-fit: contain; }
.hero-call-avatar-unknown { background: rgba(255,255,255,.16); color: #fff; }
.hero-call-avatar-unknown .ca-q { font-size: 30px; font-style: normal; font-weight: 700; color: rgba(255,255,255,.9); }
.hero-call-label { margin: 0 0 9px; color: rgba(255,255,255,.8); font-size: 13px; }
.hero-call-state h3 { margin: 0; font-size: 24px; line-height: 1.35; color: #fff; }
.hero-call-number { margin: 8px 0 0; font-size: 16px; color: #fff; }
.hero-call-brand { display: inline-block; margin: 14px 0 0; padding: 5px 9px; border-radius: 6px; background: rgba(255,255,255,.16); font-size: 12px; color: #fff; }
.hero-call-actions { position: absolute; right: 0; bottom: 28px; left: 0; display: flex; justify-content: space-around; text-align: center; font-size: 12px; }
.hero-call-actions span { display: flex; flex-direction: column; align-items: center; gap: 7px; }
.hero-call-actions i { display: flex; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 50%; font-style: normal; }
.hero-call-actions .act-no i { background: #f05252; }
.hero-call-actions .act-yes i { background: #24b76b; animation: heroCallRing 1.8s infinite ease-in-out; }
.hero-call-actions svg { width: 20px; height: 20px; }
.hero-call-tip {
  position: absolute; z-index: 4; display: flex; align-items: center; gap: 8px;
  padding: 11px 15px; border: 1px solid rgba(52,112,255,.17); border-radius: 10px;
  background: rgba(255,255,255,.94); box-shadow: 0 10px 25px rgba(35,73,142,.12);
  color: #24416f; font-size: 13.5px; font-weight: 600; white-space: nowrap;
  animation: heroCallFloat 3.6s infinite ease-in-out;
}
.hero-call-tip svg { width: 18px; height: 18px; color: #3470ff; flex: 0 0 18px; }
.hero-call-tip-one { top: 86px; left: 6px; }
.hero-call-tip-two { top: 220px; right: 10px; animation-delay: -1.2s; }
.hero-call-tip-three { bottom: 108px; left: 0; animation-delay: -2.4s; }
@keyframes heroCallSwitch {
  0%, 44% { opacity: 1; transform: translateY(0); }
  50%, 94% { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes heroCallRing {
  0%, 100% { box-shadow: 0 0 0 10px rgba(255,255,255,.14), 0 0 0 20px rgba(255,255,255,.08); }
  50% { box-shadow: 0 0 0 14px rgba(255,255,255,.12), 0 0 0 28px rgba(255,255,255,0); }
}
@keyframes heroCallFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ---------- 18. 认证五态展示（手机界面图） ---------- */
.phone-shots { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.phone-shot-card { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 18px 14px 20px; text-align: center; box-shadow: var(--shadow-sm); transition: all .3s ease; }
.phone-shot-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); }
.phone-shot-card img { width: 100%; max-width: 190px; margin: 0 auto 12px; border-radius: 14px; }
.phone-shot-card h3 { font-size: 15px; margin-bottom: 6px; }
.phone-shot-card p { font-size: 12.5px; color: var(--n5); line-height: 1.6; }

/* ---------- 19. 价值卡 ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.value-card { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 28px 26px; box-shadow: var(--shadow-sm); transition: all .3s ease; position: relative; }
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); }
.value-card .vc-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.value-card .vc-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--brand-100); color: var(--brand-600); display: inline-flex; align-items: center; justify-content: center; }
.value-card .vc-icon svg { width: 26px; height: 26px; }
.value-card .vc-num { font-size: 13px; font-weight: 700; color: var(--brand-600); background: var(--brand-100); display: inline-block; padding: 2px 12px; border-radius: var(--r-pill); }
.value-card h3 { font-size: 17px; margin-bottom: 10px; }
.value-card p { font-size: 14px; color: var(--n6); line-height: 1.75; }

/* ---------- 20. 行业入口卡 ---------- */
.ind-card { display: block; background: #fff; border-radius: var(--r-lg); padding: 26px 24px; border: 1px solid var(--n3); box-shadow: var(--shadow-sm); transition: all .3s ease; color: var(--n7); }
.ind-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); color: var(--n7); }
.ind-card .ic-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--brand-100); color: var(--brand-600); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.ind-card .ic-icon svg { width: 24px; height: 24px; }
.ind-card h3 { font-size: 17px; margin-bottom: 8px; }
.ind-card p { font-size: 13.5px; color: var(--n5); line-height: 1.7; margin-bottom: 12px; }
.ind-card .ic-link { font-size: 13px; font-weight: 600; color: var(--brand-600); display: inline-flex; align-items: center; gap: 4px; }

/* ---------- 21. 行业详情页 ---------- */
.sol-banner { border-radius: 18px; overflow: hidden; position: relative; min-height: 300px; display: flex; align-items: flex-end; }
.sol-banner .sol-bg { position: absolute; inset: 0; }
.sol-banner .sol-overlay { position: relative; z-index: 1; padding: 32px; width: 100%; }
.sol-banner .sol-overlay h1, .sol-banner .sol-overlay h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); margin-bottom: 8px; line-height: 1.3; }
.sol-banner .sol-overlay p { color: rgba(255,255,255,.88); font-size: 14.5px; max-width: 640px; }
.sol-banner .sol-icon { position: absolute; right: 36px; bottom: 28px; z-index: 1; opacity: .9; }
.sol-banner .sol-icon svg { width: 120px; height: 120px; color: rgba(255,255,255,.92); }
.scene-tags { display: flex; flex-wrap: wrap; gap: 12px; }
.scene-tags .chip { background: #fff; }
.pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
.pain-card { background: #fff; border: 1px solid var(--n3); border-left: 3px solid #E94B4B; border-radius: var(--r-md); padding: 22px 22px; box-shadow: var(--shadow-sm); }
.pain-card h3 { font-size: 16px; color: #C2453D; margin-bottom: 8px; }
.pain-card p { font-size: 14px; color: var(--n6); line-height: 1.75; }
.gain-card { background: var(--brand-100); border: 1px solid var(--brand-100); border-left: 3px solid var(--accent); border-radius: var(--r-md); padding: 22px; }
.gain-card h3 { font-size: 16px; color: var(--accent); margin-bottom: 8px; }
.gain-card p { font-size: 14px; color: var(--n6); line-height: 1.75; }
.other-ind { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.other-ind a { display: block; background: #fff; border: 1px solid var(--n3); border-radius: var(--r-md); padding: 14px 18px; color: var(--n6); font-size: 14px; transition: all .3s ease; }
.other-ind a:hover { border-color: var(--brand-600); color: var(--brand-600); box-shadow: var(--shadow-sm); }
.other-ind a b { display: block; font-size: 15px; font-weight: 600; color: var(--n7); margin-bottom: 2px; }

/* ---------- 22. 品牌徽标行 / 平台徽标行 ---------- */
.brand-logos { display: grid; grid-template-columns: repeat(8, 1fr); gap: 14px; }
.brand-logo { background: #fff; border: 1px solid var(--n3); border-radius: 12px; padding: 14px 8px; display: flex; align-items: center; justify-content: center; transition: all .3s ease; }
.brand-logo:hover { border-color: var(--brand-600); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.brand-logo img { max-height: 34px; max-width: 100%; object-fit: contain; }
.brand-logo.gray { filter: grayscale(1); opacity: .55; }
.platform-logos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; max-width: 640px; margin: 0 auto; }

/* ---------- 23. 客户案例 ---------- */
.clients-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.client-card { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 26px 24px; box-shadow: var(--shadow-sm); transition: all .3s ease; }
.client-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); }
.client-card .cl-top { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.client-card .cl-avatar {
  width: 56px; height: 56px; border-radius: 50%; flex: 0 0 56px;
  background: #fff; border: 1px solid var(--n3); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.client-card .cl-avatar img { width: 100%; height: 100%; object-fit: cover; }
.client-card .cl-name { font-size: 16px; font-weight: 600; color: var(--n7); }
.client-card .cl-ind { font-size: 12.5px; color: var(--n5); }
.client-card blockquote { margin: 0; font-size: 13.5px; color: var(--n6); line-height: 1.8; }

/* ---------- 24. 号码类型图标 / 认证范围 ---------- */
.num-types { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.num-type-card { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 26px 20px; text-align: center; box-shadow: var(--shadow-sm); transition: all .3s ease; }
.num-type-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); }
.num-type-card img { width: 48px; height: 48px; object-fit: contain; margin: 0 auto 12px; }
.num-type-card h3 { font-size: 16px; margin-bottom: 6px; }
.num-type-card p { font-size: 13px; color: var(--n5); line-height: 1.6; }
.num-type-card .soon { font-size: 12px; color: var(--n4); }
.scope-main { max-width: 720px; margin: 0 auto; }
.scope-main .scope-card { background: #fff; border: 2px solid var(--brand-600); border-radius: var(--r-lg); padding: 30px 28px; text-align: center; box-shadow: var(--shadow-blue); }
.scope-main .scope-card img { width: 56px; height: 56px; object-fit: contain; margin: 0 auto 14px; }
.scope-main .scope-card h3 { font-size: 19px; margin-bottom: 8px; }
.scope-main .scope-card p { font-size: 14.5px; color: var(--n6); }

/* ---------- 25. 其它认证服务入口 ---------- */
.other-entry { background: var(--brand-100); border-radius: var(--r-lg); padding: 28px; text-align: center; }
.other-entry .oe-items { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 16px; }
.other-entry a { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-pill); padding: 10px 22px; font-size: 14px; color: var(--n7); transition: all .3s ease; }
.other-entry a:hover { border-color: var(--brand-600); color: var(--brand-600); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ---------- 26. News / Article / FAQ list ---------- */
.news-list { max-width: 860px; margin: 0 auto; }
.news-item {
  display: block; background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg);
  padding: 24px 26px; margin-bottom: 16px; box-shadow: var(--shadow-sm); transition: all .3s ease; color: var(--n7);
}
.news-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); color: var(--n7); }
.news-item .ni-date { font-size: 12.5px; color: var(--n5); margin-bottom: 8px; display: block; }
.news-item h3 { font-size: 18px; margin-bottom: 8px; line-height: 1.45; }
.news-item p { font-size: 14px; color: var(--n6); line-height: 1.75; }
.news-item .ni-tags { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.home-news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.news-card { display: block; background: #fff; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--n3); box-shadow: var(--shadow-sm); transition: all .3s ease; color: var(--n7); }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); color: var(--n7); }
.news-card .nc-img { aspect-ratio: 16 / 9; overflow: hidden; }
.news-card .nc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .nc-img img { transform: scale(1.05); }
.news-card .nc-body { padding: 18px 20px 20px; }
.news-card .nc-date { font-size: 12px; color: var(--n5); display: block; margin-bottom: 6px; }
.news-card h3 { font-size: 16.5px; line-height: 1.5; margin-bottom: 8px; }
.news-card p { font-size: 13.5px; color: var(--n6); line-height: 1.7; }

/* ---------- 27. Article page ---------- */
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 40px; align-items: start; }
.article-body { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 36px 40px; box-shadow: var(--shadow-sm); }
.article-meta { font-size: 13px; color: var(--n5); padding-bottom: 18px; border-bottom: 1px solid var(--n2); margin-bottom: 22px; display: flex; flex-wrap: wrap; gap: 8px 18px; }
.article-body h1 { font-size: clamp(24px, 2.8vw, 32px); line-height: 1.4; margin-bottom: 14px; }
.article-body h2 { font-size: 21px; margin: 30px 0 12px; }
.article-body h3 { font-size: 17px; margin: 22px 0 10px; }
.article-body p { font-size: 15px; color: var(--n6); line-height: 1.9; margin-bottom: 14px; }
.article-body ul { list-style: disc; padding-left: 22px; margin-bottom: 14px; }
.article-body ul li { font-size: 15px; color: var(--n6); line-height: 1.9; }
.prevnext { display: flex; gap: 16px; justify-content: space-between; margin-top: 28px; }
.pn-item { flex: 0 1 48%; background: var(--n1); border-radius: var(--r-md); padding: 14px 18px; display: block; color: var(--n6); transition: all .3s ease; }
.pn-item:hover { background: var(--brand-100); color: var(--brand-700); }
.pn-item .pn-label { display: block; font-size: 12px; color: var(--n5); margin-bottom: 4px; }
.pn-item b { display: block; font-size: 14px; font-weight: 600; color: var(--n7); line-height: 1.5; }

/* ---------- 28. Sidebar ---------- */
.sidebar { position: sticky; top: 84px; }
.ad-card { background: linear-gradient(160deg, var(--brand-50), var(--brand-100)); border: 1px solid var(--brand-100); border-radius: var(--r-lg); padding: 26px 24px; text-align: center; }
.ad-card h3, .ad-card h4 { font-size: 16px; margin-bottom: 6px; }
.ad-card .sub { font-size: 13px; color: var(--n6); margin-bottom: 16px; }
.ad-card img.qr { width: 120px; height: 120px; margin: 0 auto 16px; border-radius: 10px; background: #fff; padding: 6px; box-shadow: var(--shadow-sm); }
.ad-card .btn-row { flex-direction: column; gap: 10px; }
.ad-card .btn-row .btn { width: 100%; }
.ad-card .ad-tel { display: block; margin-top: 12px; font-size: 15px; font-weight: 700; color: var(--n7); }

/* ---------- 29. CTA band ---------- */
.cta-band { background: linear-gradient(120deg, #1E2C4E, #14203A 55%, #0F1A30); color: #fff; text-align: center; padding: 72px 0; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; width: 460px; height: 460px; border-radius: 50%; background: radial-gradient(circle, rgba(90,139,255,.25), transparent 68%); right: -120px; top: -180px; }
.cta-band h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); margin-bottom: 12px; }
.cta-band .sub { color: rgba(255,255,255,.72); font-size: 15px; margin-bottom: 28px; }
.cta-band .btn-row { justify-content: center; }

/* ---------- 30. Reveal / misc ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-in { opacity: 1; transform: translateY(0); }
.icon-line { display: inline-flex; vertical-align: -2px; }
section[id], div[id] { scroll-margin-top: 84px; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); }
.materials-list { max-width: 760px; margin: 0 auto; }
.materials-list li { display: flex; gap: 12px; background: #fff; border: 1px solid var(--n3); border-radius: var(--r-md); padding: 16px 20px; margin-bottom: 12px; font-size: 14.5px; color: var(--n6); align-items: flex-start; }
.materials-list li::before { content: "✓"; flex: 0 0 auto; color: var(--accent); font-weight: 700; }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.adv-item { background: #fff; border: 1px solid var(--n3); border-radius: var(--r-lg); padding: 22px 20px; text-align: center; box-shadow: var(--shadow-sm); transition: all .3s ease; }
.adv-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-600); }
.adv-item .ai-icon { width: 46px; height: 46px; border-radius: 12px; background: var(--brand-100); color: var(--brand-600); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.adv-item .ai-icon svg { width: 22px; height: 22px; }
.adv-item h3 { font-size: 15.5px; margin-bottom: 6px; }
.adv-item p { font-size: 12.5px; color: var(--n5); line-height: 1.6; }
.tip-box { background: var(--brand-100); border-radius: var(--r-md); padding: 18px 22px; font-size: 14px; color: var(--n6); line-height: 1.8; }
.tip-box b { color: var(--brand-700); }
.warn-box { background: #FFF7F5; border: 1px solid #F5D9D4; border-radius: var(--r-md); padding: 18px 22px; font-size: 14px; color: #A6534B; line-height: 1.8; }
.warn-box b { color: #C2453D; }

/* ---------- 31. Responsive ---------- */
@media (max-width: 1199px) {
  .section { padding: 72px 0; }
  .footer-grid { grid-template-columns: repeat(3, 1fr); gap: 28px; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .site-nav a { padding: 7px 9px; font-size: 13px; }
  .hero-grid { gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .grid-2, .grid-3, .grid-4, .home-news-grid, .clients-grid, .value-grid, .stat-grid, .phone-shots, .other-ind, .price-grid, .adv-grid { grid-template-columns: 1fr; }
  .compare-panel, .vs-pics { grid-template-columns: 1fr; gap: 32px; }
  .steps-flow { flex-direction: column; gap: 28px; }
  .step::after { display: none; }
  .timeline::before { left: 26px; }
  .tl-item { padding: 0 0 32px 84px; }
  .tl-num { left: 0; width: 52px; height: 52px; }
  .site-nav { display: none; }
  .nav-toggle { display: block; }
  .header-tel { display: none; }
  .header-actions { gap: 8px; }
  .hero { padding: 56px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-points { gap: 14px 20px; }
  .article-layout { grid-template-columns: 1fr; gap: 24px; }
  .sidebar { position: static; }
  .article-body { padding: 26px 22px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .prevnext { flex-direction: column; }
  .pn-item { flex: 1 1 100%; }
  .sol-banner { min-height: 220px; }
  .sol-banner .sol-icon { display: none; }
  .page-hero { padding: 48px 0 56px; }
  .logo-text { font-size: 16px; }
  .logo-sub { display: none; }
  .brand-logos { grid-template-columns: repeat(4, 1fr); gap: 10px; }
  .platform-logos { grid-template-columns: repeat(2, 1fr); }
  .num-types { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .pain-grid { grid-template-columns: 1fr; }
  .phone-shot-card img { max-width: 160px; }
  .hero-call-phone { width: 210px; height: 430px; flex-basis: 210px; }
  .hero-call-state { top: 72px; }
  .hero-call-tip { display: none; }
}

@media (max-width: 400px) {
  .footer-grid { grid-template-columns: 1fr; }
  .btn { padding: 12px 22px; }
  .brand-logos { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 33. 图文混排（product 页等） ---------- */
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.split-fig { margin: 0; }
.split-fig img { width: 100%; border-radius: 18px; box-shadow: var(--shadow-md); }
.shot-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.shot-strip img { width: 100%; border-radius: 14px; box-shadow: var(--shadow-sm); }
.img-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: center; max-width: 660px; margin: 0 auto; }
.img-pair img { width: 100%; border-radius: 16px; box-shadow: var(--shadow-md); }
.ind-card.guide { background: var(--brand-100); border: 1px dashed var(--brand-600); }
.ind-card.guide:hover { border-style: solid; }
@media (max-width: 768px) {
  .split-layout { grid-template-columns: 1fr; gap: 24px; }
  .shot-strip { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .img-pair { grid-template-columns: 1fr 1fr; gap: 12px; }
}

/* ---------- 34. 覆盖平台质感动效（index 专用） ---------- */
.platform-section { position: relative; overflow: hidden; }
.platform-section::before {
  content: ""; position: absolute; inset: -30%; pointer-events: none;
  background:
    radial-gradient(ellipse 40% 50% at 25% 35%, rgba(52, 112, 255, 0.16), transparent 60%),
    radial-gradient(ellipse 35% 45% at 75% 60%, rgba(52, 112, 255, 0.12), transparent 60%);
  animation: platformFlow 10s ease-in-out infinite alternate;
}
.platform-section .container { position: relative; z-index: 1; }
.platform-section .brand-logos { animation: logoFloat 5s ease-in-out infinite alternate; }
@keyframes platformFlow {
  from { transform: translate3d(-1.5%, -1%, 0) scale(1); }
  to { transform: translate3d(1.5%, 1%, 0) scale(1.06); }
}
@keyframes logoFloat {
  from { transform: translateY(0); }
  to { transform: translateY(-6px); }
}
@media (prefers-reduced-motion: reduce) {
  .platform-section::before, .platform-section .brand-logos { animation: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero::before, .hero::after, .hero-visual img.hero-phone,
  .hero-call-state, .hero-call-avatar, .hero-call-actions .act-yes i, .hero-call-tip { animation: none; }
  .hero-call-certified { opacity: 1; }
  .hero-call-unknown { opacity: 0; }
  * { transition-duration: .01ms !important; }
}


/* 联系方式 3+1 网格 */
.contact-grid{display:grid;grid-template-columns:1fr;gap:var(--gap);max-width:980px;margin:0 auto}
@media(min-width:769px){.contact-grid{grid-template-columns:repeat(3,1fr)}}
.contact-grid .card{text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}
.cc-val{font-size:19px;font-weight:700;color:var(--brand-600);margin-top:8px;word-break:break-all}
.cc-val a{color:var(--brand-600)}
.cc-mail{font-size:16px}
.cc-qr{width:116px;height:116px;object-fit:contain;margin:12px auto 0;border:1px solid var(--n3);border-radius:10px;padding:6px;background:#fff}
.contact-card-addr{grid-column:1/-1}
@media(max-width:768px){.contact-card-addr{grid-column:auto}}

/* 首页 footer 友情链接横排行（v6） */
.footer-links { border-top: 1px solid rgba(255,255,255,.08); padding: 14px 0; }
.footer-links-inner { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #8A93A3; flex-wrap: wrap; }
.footer-links-inner a { color: #AEB6C3; }
.footer-links-inner a:hover { color: var(--brand-500); }