:root{
      --bg:#f4f7fb;
      --bg2:#eef4ff;
      --card:#ffffff;
      --card2:#f8fbff;
      --text:#10233f;
      --muted:#5c6b86;
      --brand:#1557ff;
      --brand2:#0b2c8f;
      --line:#dbe5f2;
      --shadow:0 18px 48px rgba(16,35,63,.08);
      --radius:22px;
      --radius2:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at top left, rgba(21,87,255,.12), transparent 28%),
      radial-gradient(circle at top right, rgba(11,44,143,.12), transparent 24%),
      linear-gradient(180deg, #fff 0%, var(--bg) 22%, #f7faff 100%);
      color:var(--text);line-height:1.7}
    a{color:var(--brand);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:50;background:rgba(244,247,251,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(219,229,242,.75)}
    .nav{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 .logo-wrap{width:46px;height:46px;border-radius:14px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;box-shadow:0 10px 22px rgba(21,87,255,.08);overflow:hidden}
    .brand h2{margin:0;font-size:16px;line-height:1.2}
    .brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
    .menu{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px}
    .menu a:hover{background:#e9f0ff;color:var(--brand)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#4e8bff);color:#fff;box-shadow:0 12px 26px rgba(21,87,255,.24)}
    .btn-secondary{background:#fff;color:var(--brand);border:1px solid var(--line)}
    .btn:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(21,87,255,.16)}
    .nav-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;width:44px;height:44px}
    .hero{padding:44px 0 24px}
    .hero-grid{display:grid;grid-template-columns:1.22fr .78fr;gap:22px;align-items:stretch}
    .hero-card{background:linear-gradient(135deg, #ffffff 0%, #f6f9ff 100%);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:34px;position:relative;overflow:hidden}
    .hero-card:before{content:"";position:absolute;right:-80px;top:-80px;width:230px;height:230px;border-radius:50%;background:radial-gradient(circle, rgba(21,87,255,.18), transparent 65%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eaf1ff;color:var(--brand2);border:1px solid #d7e3ff;padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:18px 0 12px;font-size:clamp(32px, 5vw, 54px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0 0 22px;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 20px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}
    .point{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:18px;padding:16px}
    .point strong{display:block;font-size:20px;color:var(--brand2)}
    .point span{color:var(--muted);font-size:13px}
    .hero-side{display:grid;gap:16px}
    .side-card{background:var(--card);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:22px}
    .side-card h3{margin:0 0 10px;font-size:20px}
    .side-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .side-list li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed #e3eaf6}
    .side-list li:last-child{border-bottom:0}
    .section{padding:20px 0 0}
    .section h2{margin:0 0 10px;font-size:clamp(24px, 3vw, 36px);line-height:1.15}
    .section .sub{margin:0 0 22px;color:var(--muted);max-width:68ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:22px;transition:.25s ease}
    .card:hover{transform:translateY(-3px);border-color:#c8d9f6}
    .metric{font-size:28px;font-weight:800;color:var(--brand2);margin:6px 0 6px}
    .muted{color:var(--muted)}
    .icon{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#e8f0ff,#dce8ff);display:grid;place-items:center;color:var(--brand2);font-weight:900}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:8px 12px;border-radius:999px;background:#edf3ff;border:1px solid #d9e5ff;color:#12305f;font-size:13px}
    .timeline{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:56px 1fr;gap:14px;align-items:start}
    .step .num{width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,var(--brand),#7aa8ff);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;box-shadow:0 12px 26px rgba(21,87,255,.2)}
    .step h3{margin:0 0 6px}
    .compare{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow)}
    .compare th,.compare td{padding:14px 16px;border-bottom:1px solid #edf2fa;border-right:1px solid #edf2fa;text-align:left;vertical-align:top}
    .compare th:last-child,.compare td:last-child{border-right:0}
    .compare tr:last-child td{border-bottom:0}
    .compare th{background:#eff5ff;color:var(--brand2)}
    .rating{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:#e9f2ff;border:1px solid #d5e4ff;border-radius:999px;font-weight:700}
    .testimonial{display:grid;gap:12px}
    .quote{padding:20px;border-radius:20px;background:linear-gradient(180deg,#fff,#f7faff);border:1px solid var(--line)}
    .quote strong{display:block;margin-bottom:8px}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
    summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700}
    summary::-webkit-details-marker{display:none}
    details p{margin:0;padding:0 20px 18px;color:var(--muted)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .field{display:grid;gap:8px}
    label{font-weight:700;font-size:14px}
    input,select,textarea{width:100%;border:1px solid #d6e1f0;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);background:#fff;outline:none}
    textarea{min-height:130px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8db0ff;box-shadow:0 0 0 4px rgba(21,87,255,.08)}
    .full{grid-column:1/-1}
    .table-wrap{overflow-x:auto}
    .article-list{display:grid;gap:12px}
    .article{display:flex;justify-content:space-between;gap:14px;padding:16px 18px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .article span{color:var(--muted);font-size:13px}
    .contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .qrcode{display:grid;place-items:center;text-align:center;gap:10px}
    .footer{margin-top:20px;padding:22px 0 30px;background:#f0f5ff;border-top:1px solid #dbe5f2;color:#22314f}
    .footer a{color:#143fbb}
    .float-bar{position:fixed;right:16px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:16px;border:0;background:linear-gradient(135deg,var(--brand),#4f8eff);color:#fff;box-shadow:0 14px 30px rgba(21,87,255,.26);display:grid;place-items:center;font-size:18px}
    .backtop{display:none}
    .mobile-only{display:none}
    .scroll-x{overflow-x:auto}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.contact-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      .menu{display:none;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px;box-shadow:var(--shadow)}
      .menu.open{display:grid}
      .nav-toggle{display:inline-grid;place-items:center}
      .nav{position:relative}
      .mobile-only{display:inline-flex}
    }