:root{
      --bg:#f6f8fc;
      --surface:#ffffff;
      --surface-2:#f2f6ff;
      --line:#dbe3f3;
      --text:#172033;
      --muted:#5a6781;
      --brand:#205cff;
      --brand-2:#7a2cff;
      --accent:#ff5b5f;
      --success:#13a86b;
      --warning:#ffb020;
      --shadow:0 18px 40px rgba(20,40,90,.10);
      --radius:22px;
      --radius-sm:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(32,92,255,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(122,44,255,.10), transparent 22%),
        linear-gradient(180deg, #ffffff 0%, #f8fbff 36%, #f5f7fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:60;
      backdrop-filter:saturate(160%) blur(14px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(219,227,243,.8);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      min-height:76px;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 18px rgba(32,92,255,.10)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .nav-links{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px;color:#31415f;padding:8px 0;position:relative}
    .nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:.25s}
    .nav-links a:hover::after,.nav-links a:focus::after{width:100%}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border:1px solid transparent; padding:12px 18px; border-radius:999px;
      font-weight:700; font-size:14px; cursor:pointer; transition:.25s ease;
      box-shadow:none; user-select:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; box-shadow:0 14px 28px rgba(32,92,255,.24)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 34px rgba(32,92,255,.28)}
    .btn-light{background:#fff;color:var(--text);border-color:var(--line)}
    .btn-light:hover{transform:translateY(-2px);border-color:#c4d0eb;box-shadow:0 10px 24px rgba(20,40,90,.08)}
    .menu-btn{display:none}
    .hero{
      padding:56px 0 24px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:24px; align-items:stretch;
    }
    .hero-card{
      background:
        linear-gradient(135deg, rgba(32,92,255,.98), rgba(122,44,255,.95));
      color:#fff;
      border-radius:28px;
      padding:34px;
      box-shadow:0 22px 54px rgba(50,61,150,.26);
      overflow:hidden;
      position:relative;
    }
    .hero-card::before,.hero-card::after{
      content:""; position:absolute; border-radius:50%; background:rgba(255,255,255,.12); pointer-events:none;
    }
    .hero-card::before{width:220px;height:220px;right:-70px;top:-60px}
    .hero-card::after{width:140px;height:140px;right:48px;bottom:-56px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.18);padding:8px 12px;border-radius:999px;font-size:13px}
    h1{font-size:clamp(30px,4vw,52px);line-height:1.06;margin:18px 0 14px;letter-spacing:-.02em}
    .lead{font-size:16px;line-height:1.8;color:rgba(255,255,255,.92);max-width:56ch;margin:0 0 20px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 22px}
    .hero-actions .btn-light{background:#fff;color:#123;box-shadow:0 12px 24px rgba(0,0,0,.12)}
    .hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:18px}
    .point{
      background:rgba(255,255,255,.11); border:1px solid rgba(255,255,255,.15);
      border-radius:18px; padding:14px 16px; min-height:88px
    }
    .point b{display:block;font-size:16px;margin-bottom:6px}
    .point span{font-size:13px;line-height:1.6;color:rgba(255,255,255,.88)}
    .side-stack{display:grid;gap:16px}
    .mini-panel,.service-panel{
      background:rgba(255,255,255,.86); border:1px solid rgba(219,227,243,.9); box-shadow:var(--shadow); border-radius:24px; padding:22px
    }
    .metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .metric{
      background:linear-gradient(180deg,#fff, #f7faff); border:1px solid var(--line);
      border-radius:20px; padding:18px; min-height:122px
    }
    .metric strong{display:block;font-size:28px;color:#132038;line-height:1}
    .metric span{display:block;margin-top:8px;font-size:13px;color:var(--muted);line-height:1.6}
    .section{padding:24px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}
    .section-head h2{font-size:clamp(24px,3vw,34px);margin:0;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:62ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:24px;
      padding:20px;
      box-shadow:0 10px 24px rgba(20,40,90,.06);
      transition:.25s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(20,40,90,.10)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 14px;border-radius:999px;background:linear-gradient(180deg,#fff,#f2f6ff);border:1px solid var(--line);font-size:13px;color:#2d3b58}
    .timeline{display:grid;gap:12px}
    .step{
      display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start;
      background:linear-gradient(180deg,#fff,#f9fbff);border:1px solid var(--line);border-radius:22px;padding:18px
    }
    .num{
      width:56px;height:56px;border-radius:18px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;font-size:20px
    }
    .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:22px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
    th{background:#f6f9ff;color:#21304a;font-size:13px;letter-spacing:.02em}
    tr:last-child td{border-bottom:none}
    .pill{display:inline-flex;align-items:center;padding:7px 11px;border-radius:999px;background:#edf3ff;color:#2349a6;font-weight:700;font-size:12px}
    .compare-highlight{border:1px solid rgba(32,92,255,.18);background:linear-gradient(180deg,#fff,#f4f8ff)}
    details{
      background:var(--surface); border:1px solid var(--line); border-radius:18px; padding:16px 18px;
      box-shadow:0 10px 24px rgba(20,40,90,.05);
    }
    details+details{margin-top:12px}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:12px 0 0;color:var(--muted);line-height:1.75}
    .reviews,.articles,.network,.faq-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .quote{font-size:14px;line-height:1.8;color:var(--muted)}
    .quote strong{display:block;color:var(--text);font-size:16px;margin-bottom:10px}
    .case{
      overflow:hidden;display:flex;flex-direction:column;gap:14px
    }
    .case .thumb{
      aspect-ratio:16/9;border-radius:18px;background:linear-gradient(135deg,#dfe8ff,#f7f1ff);
      border:1px solid var(--line);display:grid;place-items:center;color:#4a5b82;font-weight:800
    }
    .article-item{padding:18px;border-radius:20px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line)}
    .article-item small{color:#7686a6}
    .article-item h3{margin:8px 0 10px;font-size:17px}
    .form-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    label{font-size:13px;color:#374760;font-weight:700}
    input,select,textarea{
      width:100%; border:1px solid var(--line); background:#fff; color:var(--text);
      border-radius:14px; padding:13px 14px; font:inherit; outline:none; transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:#8fb0ff;box-shadow:0 0 0 4px rgba(32,92,255,.10)}
    textarea{min-height:124px;resize:vertical}
    .foot{
      margin-top:24px;
      background:#101827;color:#d8e2ff;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .foot a{color:#fff}
    .foot-inner{padding:28px 0 18px}
    .foot-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;align-items:start}
    .foot p,.foot li{color:#b8c5e6;line-height:1.8}
    .foot ul{margin:0;padding:0;list-style:none}
    .foot .tag{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);color:#d8e2ff}
    .copyright{padding:14px 0 20px;border-top:1px solid rgba(255,255,255,.08);margin-top:18px;font-size:13px;color:#a7b6da}
    .floating{
      position:fixed; right:16px; bottom:18px; z-index:70;
      display:grid; gap:10px;
    }
    .float-btn{
      width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 28px rgba(32,92,255,.28)
    }
    .float-panel{
      position:fixed; right:16px; bottom:82px; z-index:70; width:min(320px,calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:16px;display:none
    }
    .float-panel.open{display:block}
    .qrcode{display:grid;grid-template-columns:88px 1fr;gap:12px;align-items:center}
    .qrcode img{width:88px;height:88px;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
    .anchor-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
    .anchor-bar a{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.15);color:#fff;font-size:13px}
    .muted{color:var(--muted)}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .banner-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
    .banner-row img{width:100%;height:auto;border-radius:18px;border:1px solid var(--line);box-shadow:0 10px 24px rgba(20,40,90,.08)}
    .hidden-mobile{display:block}
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.form-grid,.foot-grid,.grid-4,.reviews,.articles,.network,.faq-grid,.grid-3,.banner-row{grid-template-columns:repeat(2,minmax(0,1fr))}
      .hero{padding-top:32px}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav.open .nav-links{
        display:flex; position:absolute; left:0; right:0; top:76px; padding:14px 16px 18px;
        background:rgba(255,255,255,.96); border-bottom:1px solid var(--line); flex-direction:column; align-items:flex-start; gap:12px
      }
      .nav{position:relative}
      .nav.open .nav-cta{display:flex; margin-left:auto}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .hero-grid,.form-grid,.foot-grid,.grid-4,.reviews,.articles,.network,.faq-grid,.grid-3,.banner-row,.split{grid-template-columns:1fr}
      .hero-card{padding:24px}
      .hero-points{grid-template-columns:1fr}
      .metrics{grid-template-columns:1fr 1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .brand strong{font-size:16px}
      .hidden-mobile{display:none}
      table{min-width:880px}
    }