:root{
      --bg:#f7f9fc;
      --panel:#ffffff;
      --panel-2:#f2f6ff;
      --text:#182233;
      --muted:#5f6b7a;
      --line:#dde6f2;
      --primary:#3a6ff7;
      --primary-2:#7c4dff;
      --accent:#ff7a59;
      --accent-2:#19c37d;
      --shadow:0 18px 50px rgba(26,43,72,.08);
      --radius:22px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:
      radial-gradient(circle at top left, rgba(58,111,247,.10), transparent 26%),
      radial-gradient(circle at top right, rgba(255,122,89,.10), transparent 24%),
      linear-gradient(180deg, #fbfcff 0%, #f5f8fd 100%);
      color:var(--text);line-height:1.7}
    a{color:var(--primary);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(247,249,252,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(221,230,242,.9)}
    .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:44px;height:44px;border-radius:12px;object-fit:cover;background:#fff;box-shadow:0 10px 24px rgba(58,111,247,.12)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px;font-size:14px}
    nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    nav a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px}
    nav a:hover{background:var(--panel-2)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:14px;padding:13px 18px;font-weight:700;cursor:pointer;transition:.25s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 14px 28px rgba(58,111,247,.22)}
    .btn-secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .hero{padding:28px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px;align-items:stretch}
    .hero-card{position:relative;overflow:hidden;background:
      linear-gradient(135deg, rgba(58,111,247,.08), rgba(124,77,255,.08)),
      linear-gradient(180deg,#fff,#f8fbff);
      border:1px solid rgba(221,230,242,.95);border-radius:28px;padding:30px;box-shadow:var(--shadow)}
    .hero-card::before,.hero-card::after{content:"";position:absolute;border-radius:999px;filter:blur(0);pointer-events:none}
    .hero-card::before{width:180px;height:180px;background:radial-gradient(circle, rgba(58,111,247,.18), transparent 65%);right:-40px;top:-40px}
    .hero-card::after{width:220px;height:220px;background:radial-gradient(circle, rgba(255,122,89,.12), transparent 65%);left:-70px;bottom:-100px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(58,111,247,.09);color:var(--primary);padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,54px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .point{background:rgba(255,255,255,.76);border:1px solid var(--line);border-radius:18px;padding:16px}
    .point b{display:block;font-size:18px;margin-bottom:4px}
    .point span{font-size:13px;color:var(--muted)}
    .hero-side{display:grid;gap:16px}
    .side-card{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:var(--shadow)}
    .side-card h2,.section-title h2{margin:0 0 10px;font-size:26px}
    .mini-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .mini-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted)}
    .dot{width:10px;height:10px;border-radius:50%;margin-top:8px;background:linear-gradient(135deg,var(--accent),var(--primary))}
    section{padding:22px 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-title p{margin:0;color:var(--muted)}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 10px 30px rgba(29,41,57,.05);transition:.25s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(29,41,57,.10)}
    .metric b{font-size:28px;display:block}
    .metric span{color:var(--muted);font-size:13px}
    .service-tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--panel-2);color:#3154b6;font-size:12px;font-weight:700;margin-bottom:10px}
    .timeline{display:grid;gap:14px}
    .step{display:flex;gap:14px;align-items:flex-start}
    .step-num{flex:0 0 40px;height:40px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:800}
    .step h3,.card h3{margin:0 0 8px;font-size:18px}
    .step p,.card p{margin:0;color:var(--muted)}
    .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:900px}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f6f9ff;color:var(--text);font-size:14px}
    td{color:#39495d;font-size:14px}
    .rating{display:inline-flex;gap:4px;color:#f39c12;font-size:18px}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#344150;font-size:13px}
    .compare{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .quote{border-left:4px solid var(--primary);background:linear-gradient(180deg,#fff,#f8fbff);padding:18px;border-radius:0 20px 20px 0}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 8px 26px rgba(29,41,57,.04)}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:12px 0 0;color:var(--muted)}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review small{color:var(--muted)}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{display:flex;flex-direction:column;gap:10px}
    .article a{font-weight:700;color:var(--text)}
    .article a:hover{color:var(--primary)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    form{display:grid;gap:14px}
    label{font-size:14px;font-weight:700;color:#2b3848}
    input,select,textarea{width:100%;margin-top:8px;border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:.2s ease}
    input:focus,select:focus,textarea:focus{border-color:rgba(58,111,247,.65);box-shadow:0 0 0 4px rgba(58,111,247,.10)}
    textarea{min-height:132px;resize:vertical}
    .footer-grid{display:grid;grid-template-columns:1fr .9fr .9fr;gap:18px}
    footer{margin-top:14px;background:#0f1724;color:#d8e3f3;padding:26px 0 18px}
    footer a{color:#bcd3ff}
    footer .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.08);box-shadow:none}
    footer p,footer li{color:#cdd8ea}
    .footer-bottom{margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.10);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#b7c4d8}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 14px 28px rgba(58,111,247,.22);border:none;cursor:pointer}
    .float-link{display:grid;place-items:center;text-align:center;width:52px;height:52px;border-radius:18px;background:#fff;border:1px solid var(--line);color:var(--text);box-shadow:var(--shadow)}
    .mobile-menu{display:none}
    .anchor-pad{scroll-margin-top:92px}
    .support-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:16px}
    .gallery{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .gallery img{border-radius:18px;border:1px solid var(--line);background:#fff}
    .scroll-tag{display:inline-block;margin-right:8px;margin-bottom:8px}
    .network{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .network .card{padding:16px}
    .muted{color:var(--muted)}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .price-box{background:linear-gradient(180deg,#fff,#f6f9ff);border:1px solid var(--line);border-radius:20px;padding:18px}
    .price-box strong{font-size:24px}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.compare,.support-grid,.footer-grid,.form-grid,.split{grid-template-columns:1fr}
      .grid-4,.grid-3,.reviews,.article-list,.network{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      nav{display:none;width:100%;padding:10px 0 2px}
      nav.open{display:flex;flex-direction:column;align-items:flex-start}
      .topbar{flex-wrap:wrap}
      .hero-card{padding:22px}
      .hero-points{grid-template-columns:1fr}
      .grid-4,.grid-3,.reviews,.article-list,.network{grid-template-columns:1fr}
      .section-title{flex-direction:column;align-items:flex-start}
      .floating{right:12px;bottom:12px}
    }