:root{--bg:#f4f7fd;--card:#ffffff;--text:#0f1f3a;--muted:#5b6884;--primary:#1157d8;--primary2:#19a0ff;--line:#d9e3f6;--shadow:0 18px 40px rgba(18,60,130,.10);--radius:20px;--radius2:26px}
    *{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;background:radial-gradient(circle at top left,#eaf2ff 0,#f4f7fd 30%,#f7f9ff 60%,#eef4ff 100%);color:var(--text)}
    a{color:var(--primary);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:30;background:rgba(244,247,253,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,227,246,.8)}
    .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 img{width:42px;height:42px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:12px;padding:5px}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .navlinks{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}
    .navlinks a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px}
    .navlinks a:hover,.navlinks a.active{background:#e8f1ff;color:var(--primary)}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main{background:linear-gradient(135deg,#0c2f73 0,#1157d8 45%,#1ca0ff 100%);color:#fff;border-radius:30px;padding:34px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .hero-main:before,.hero-main:after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.12);filter:blur(0)}
    .hero-main:before{width:180px;height:180px;right:-40px;top:-50px}
    .hero-main:after{width:260px;height:260px;right:40px;bottom:-120px}
    .hero-kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid rgba(255,255,255,.24);border-radius:999px;background:rgba(255,255,255,.08);font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.05}
    .hero-main p{margin:0;color:rgba(255,255,255,.92);font-size:16px;line-height:1.8;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;padding:12px 16px;font-weight:700;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:#fff;color:#0d3d9e}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.18)}
    .btn-ghost{border-color:rgba(255,255,255,.24);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.14)}
    .hero-side{display:grid;gap:14px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:var(--shadow)}
    .stat strong{display:block;font-size:28px;line-height:1;color:var(--primary)}
    .stat span{display:block;margin-top:8px;font-size:13px;color:var(--muted);line-height:1.6}
    .mini-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:var(--shadow)}
    .mini-panel h3{margin:0 0 10px;font-size:18px}
    .pill-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:8px 12px;border-radius:999px;background:#edf4ff;color:#1849aa;font-size:13px}
    section{padding:18px 0}
    .section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:0 0 14px}
    .section-title h2{margin:0;font-size:28px}
    .section-title p{margin:0;color:var(--muted);font-size:14px;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,.panel,.faq-item,.review,.timeline li,.article,.case,.form-wrap,.compare,.table-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .card,.panel,.review,.article,.case{padding:20px}
    .card:hover,.review:hover,.article:hover,.case:hover{transform:translateY(-3px);transition:.25s ease}
    .card h3,.panel h3,.case h3,.article h3,.review h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.case p,.article p,.review p{margin:0;color:var(--muted);line-height:1.75}
    .icon{width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,#eaf2ff,#dbe9ff);display:grid;place-items:center;color:var(--primary);font-weight:800;margin-bottom:14px}
    .table-wrap{overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 12px;border-bottom:1px solid #e8eef9;text-align:left;vertical-align:top}
    th{background:#f6f9ff;color:#12306a}
    .tag-row,.meta-row{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:7px 10px;border-radius:999px;background:#f1f6ff;border:1px solid #dbe7ff;color:#204689;font-size:13px}
    .timeline{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .timeline li{padding:18px;display:grid;gap:6px}
    .timeline b{color:var(--primary)}
    .compare{padding:22px}
    .compare-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px}
    .stars{color:#ff9f2d;font-size:20px;letter-spacing:2px}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:#fff;border:0;color:var(--text);font-size:16px;font-weight:700;text-align:left}
    .faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);line-height:1.8;transition:max-height .28s ease,padding .28s ease}
    .faq-item.open .faq-a{padding:0 20px 18px;max-height:180px}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review small{color:var(--primary);font-weight:700}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article .date{color:var(--muted);font-size:13px;margin-top:8px}
    .form-wrap{padding:22px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    input,select,textarea{width:100%;border:1px solid #d7e3f7;border-radius:14px;padding:12px 14px;font:inherit;color:var(--text);background:#fff}
    textarea{min-height:120px;resize:vertical}
    .submit{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;border:0;font-weight:800}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .qrcode{display:flex;gap:16px;align-items:center}
    .qrcode img{width:124px;height:124px;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}
    footer{margin-top:18px;background:#0d1f44;color:#dbe6ff}
    footer .container{padding:26px 0}
    footer a{color:#ffffff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:start}
    .footer-mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .floating{position:fixed;right:16px;bottom:18px;z-index:40;display:grid;gap:10px}
    .float-btn{border:0;border-radius:999px;padding:12px 14px;background:#fff;color:var(--primary);box-shadow:var(--shadow);font-weight:700}
    .backtop{display:none}
    .fade-in{opacity:0;transform:translateY(16px);transition:.6s ease}
    .fade-in.show{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.reviews,.articles,.split,.footer-grid{grid-template-columns:1fr}
      .navlinks{display:none}
      .menu-btn{display:inline-flex}
      .navlinks.open{display:flex;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      .form-grid,.stat-grid{grid-template-columns:1fr}
      .hero-main{padding:26px}
    }