:root{--bg:#f6f7fb;--panel:#ffffff;--panel2:#fff9f2;--text:#172033;--muted:#5f6b85;--line:#e6eaf2;--brand:#4f7cff;--brand2:#ff8a5b;--brand3:#7f5cff;--shadow:0 18px 50px rgba(28,41,74,.08);--radius:22px;--radius2:16px}
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top left,#fff 0%,#f7f8fd 28%,#f3f6ff 56%,#f9f7f2 100%);color:var(--text)}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:60;background:rgba(246,247,251,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(230,234,242,.85)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 10px 20px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:1.02rem;line-height:1.1}
    .brand span,.meta-pill,.subtle{color:var(--muted)}
    .nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:.95rem;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav a:hover,.nav a:focus{background:#fff;box-shadow:0 10px 24px rgba(79,124,255,.10);transform:translateY(-1px)}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .hero{padding:38px 0 26px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-card,.card,.panel,.quote,.faq-item,.form-wrap,.table-wrap,.price-box{background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(255,255,255,.88));border:1px solid rgba(230,234,242,.92);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-card{padding:30px;position:relative;overflow:hidden}
    .hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:999px;filter:blur(2px);opacity:.55}
    .hero-card:before{width:240px;height:240px;background:radial-gradient(circle,#7f5cff 0%,rgba(127,92,255,0) 68%);top:-70px;right:-60px}
    .hero-card:after{width:180px;height:180px;background:radial-gradient(circle,#ff8a5b 0%,rgba(255,138,91,0) 68%);bottom:-52px;left:-24px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(79,124,255,.1);color:#3256bf;font-weight:600;font-size:.9rem}
    h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.05;margin:16px 0 14px}
    .lead{font-size:1.05rem;line-height:1.8;color:var(--muted);max-width:46rem}
    .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.25s;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand3));color:#fff;box-shadow:0 14px 28px rgba(79,124,255,.22)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(28,41,74,.12)}
    .hero-aside{display:grid;gap:14px}
    .mini-visual{padding:22px}
    .mini-visual .grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .mini-box{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fbfcff,#f4f7ff);border:1px solid var(--line)}
    .mini-box strong{display:block;font-size:1.3rem;margin-bottom:6px}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0 0}
    .stat{padding:18px}
    .stat strong{display:block;font-size:1.5rem}
    section{padding:22px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin:0 0 14px}
    .section-head h2{margin:0;font-size:1.65rem}
    .section-head p{margin:0;color:var(--muted);max-width:52rem;line-height:1.7}
    .grid-3,.grid-4{display:grid;gap:16px}
    .grid-3{grid-template-columns:repeat(3,1fr)} .grid-4{grid-template-columns:repeat(4,1fr)}
    .card{padding:20px}
    .card h3{margin:6px 0 10px;font-size:1.08rem}
    .card p,.card li{color:var(--muted);line-height:1.7}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 20px rgba(0,0,0,.04);font-size:.92rem;color:#34405d}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:20px;border-radius:20px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,#f9fbff)}
    .step .n{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#4f7cff,#7f5cff);color:#fff;font-weight:800}
    .step h3{margin:12px 0 8px}
    .compare{overflow:auto}
    table{width:100%;border-collapse:separate;border-spacing:0;min-width:780px}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
    th{background:#f7f9ff;color:#24304c;font-size:.95rem}
    tbody tr:hover{background:#fbfcff}
    .badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(79,124,255,.1);color:#2e55b8;font-weight:700;font-size:.86rem}
    .faq-list details{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}
    .faq-list details+details{margin-top:12px}
    .faq-list summary{list-style:none;cursor:pointer;padding:18px 18px;font-weight:700;display:flex;justify-content:space-between;gap:12px}
    .faq-list summary::-webkit-details-marker{display:none}
    .faq-list .ans{padding:0 18px 18px;color:var(--muted);line-height:1.75}
    .reviews,.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:20px;background:linear-gradient(180deg,#fff,#f9fbff);border-radius:20px;border:1px solid var(--line)}
    .review .name{font-weight:800;margin-top:14px}
    .review .role{color:#6d7892;font-size:.92rem}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{padding:20px}
    .article ul{padding-left:18px;margin:10px 0 0}
    .form-wrap{padding:22px}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:grid;gap:8px;font-weight:600;color:#26324d}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:120px;resize:vertical;grid-column:1/-1}
    .form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    footer{margin-top:18px;background:#0f1730;color:#dbe4ff}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;padding:28px 0}
    footer a{color:#fff}
    .footer-grid .muted{color:#aab6d7;line-height:1.7}
    .bottom{border-top:1px solid rgba(255,255,255,.08);padding:14px 0;color:#aab6d7;font-size:.94rem}
    .floating{position:fixed;right:16px;bottom:18px;z-index:70;display:grid;gap:10px}
    .float-btn{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#fff;border:1px solid var(--line);box-shadow:0 16px 28px rgba(0,0,0,.12)}
    .客服{display:grid;gap:10px}
    .qrcode{padding:14px;background:#fff;border-radius:18px;border:1px solid var(--line)}
    .qrcode img{width:160px;height:auto}
    .scroll-top{opacity:0;pointer-events:none;transform:translateY(8px);transition:.25s}
    .scroll-top.show{opacity:1;pointer-events:auto;transform:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    .anchor-title{display:flex;align-items:center;gap:10px}
    .pillar{background:linear-gradient(180deg,#fff,#fbfcff);border:1px solid var(--line);border-radius:22px;padding:18px}
    .price-box{padding:20px}
    .price-row{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line)}
    .price-row:last-child{border-bottom:none}
    .network{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .map-card{padding:20px}
    .small{font-size:.92rem}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.reviews,.cases,.articles,.timeline,.footer-grid,.network,.stats{grid-template-columns:1fr 1fr}
      .hero-grid{grid-template-columns:1fr}
    }
    @media (max-width: 720px){
      .container{width:min(100% - 20px,1180px)}
      .nav{display:none;position:absolute;left:16px;right:16px;top:64px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      .nav.open{display:grid}
      .menu-btn{display:inline-flex}
      .stats,.grid-3,.grid-4,.reviews,.cases,.articles,.timeline,.footer-grid,.network,form{grid-template-columns:1fr}
      .section-head,.topbar{align-items:flex-start;flex-direction:column}
      .hero-card{padding:22px}
      h1{font-size:2.2rem}
      textarea,.form-actions{grid-column:auto}
    }