:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel-2:#f3f6ff;
      --text:#1d2433;
      --muted:#5b667d;
      --line:#e6ebf5;
      --primary:#2e6bff;
      --primary-2:#22c55e;
      --accent:#ffb84d;
      --shadow:0 12px 30px rgba(28, 52, 108, .10);
      --radius:20px;
      --radius-sm:14px;
      --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;background:linear-gradient(180deg,#fdfefe 0%,#f4f7ff 42%,#f8fafc 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .topbar,.site-header,.site-footer,section{position:relative}
    .topbar{background:#eff5ff;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}
    .topbar .inner{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:10px 0;flex-wrap:wrap}
    .topbar .links{display:flex;gap:14px;flex-wrap:wrap}
    .site-header{background:rgba(255,255,255,.8);backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid rgba(230,235,245,.8);position:sticky;top:0;z-index:30}
    .header-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand p{margin:3px 0 0;color:var(--muted);font-size:12px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{color:#31405d;font-size:14px;padding:8px 10px;border-radius:10px}
    .nav a:hover{background:#eef4ff;color:var(--primary)}
    .home-btn{background:linear-gradient(135deg,var(--primary),#5c8dff);color:#fff!important;box-shadow:0 10px 22px rgba(46,107,255,.18)}
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px;align-items:stretch}
    .hero-main{background:
      radial-gradient(circle at top right, rgba(46,107,255,.14), transparent 28%),
      radial-gradient(circle at bottom left, rgba(34,197,94,.10), transparent 28%),
      linear-gradient(180deg,#ffffff 0%,#f6f9ff 100%);
      border:1px solid rgba(230,235,245,.9);border-radius:28px;padding:34px;box-shadow:var(--shadow);overflow:hidden}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eaf2ff;color:#2152d5;border:1px solid #d7e4ff;padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(30px,5vw,52px);line-height:1.1;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:64ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;padding:13px 18px;font-weight:700;border:1px solid transparent;transition:.24s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--primary),#47a0ff);color:#fff;box-shadow:0 12px 26px rgba(46,107,255,.22)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(23,36,80,.10)}
    .hero-side{display:grid;gap:16px}
    .mini-card{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow)}
    .stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
    .stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}
    .stat strong{display:block;font-size:24px;color:#17306f}
    .stat span{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.5}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px;flex-wrap:wrap}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:60ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow);transition:.24s ease}
    .card:hover{transform:translateY(-3px)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;gap:10px;flex-wrap:wrap}
    .tag{background:#eef4ff;color:#2346a8;border:1px solid #dbe7ff;padding:8px 12px;border-radius:999px;font-size:13px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:84px 1fr;gap:14px;align-items:start;padding:14px 0;border-bottom:1px dashed #e4e9f5}
    .timeline-item:last-child{border-bottom:none;padding-bottom:0}
    .timeline-item b{display:inline-block;background:#ebf6ff;color:#1454d8;border-radius:999px;padding:8px 10px;font-size:13px;text-align:center}
    .compare-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 14px;border-bottom:1px solid #edf1f7;text-align:left;vertical-align:top}
    th{background:#f5f8ff;color:#203058;font-size:14px}
    td{color:#42506b}
    .highlight{color:#0f4bd4;font-weight:800}
    .rating{display:flex;flex-direction:column;gap:8px}
    .stars{color:#f59e0b;font-size:20px;letter-spacing:2px}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 16px;box-shadow:var(--shadow)}
    summary{cursor:pointer;font-weight:700;color:#203058;list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:10px 0 0;color:var(--muted);line-height:1.75}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review .meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}
    .review .role{color:var(--primary);font-size:13px;font-weight:700}
    .review .name{font-weight:700}
    .review .quote{margin:0;color:#51607a;line-height:1.8}
    .articles{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .article-item{display:flex;justify-content:space-between;gap:12px;padding:16px 0;border-bottom:1px solid #edf1f7}
    .article-item:last-child{border-bottom:none}
    .article-item a{color:#203058;font-weight:700}
    .article-item span{color:var(--muted);font-size:13px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .form-card form{display:grid;gap:12px}
    input,select,textarea{width:100%;border:1px solid #dfe6f2;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#88a8ff;box-shadow:0 0 0 4px rgba(46,107,255,.08)}
    .submit-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .footer-top{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .site-footer{margin-top:12px;background:#0f1b35;color:#dbe5ff;padding:30px 0 18px}
    .site-footer a{color:#ffffff}
    .site-footer p,.site-footer li{color:#d0dbf5}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:16px;align-items:start}
    .footer-box{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);border-radius:18px;padding:18px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{background:rgba(255,255,255,.08);padding:8px 10px;border-radius:10px}
    .floating{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}
    .float-btn{background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 14px;box-shadow:var(--shadow);font-weight:700;color:#203058}
    .float-primary{background:linear-gradient(135deg,var(--primary),#58a1ff);color:#fff;border-color:transparent}
    .side-qrcode img{width:100%;max-width:180px;border-radius:14px;border:1px solid var(--line)}
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.visible{opacity:1;transform:none}
    .chip-row{display:flex;gap:10px;flex-wrap:wrap}
    .chip{background:#f2f6ff;border:1px solid #dfe8ff;color:#26408e;padding:8px 12px;border-radius:999px;font-size:13px}
    .price-list{display:grid;gap:12px}
    .price-item{display:flex;justify-content:space-between;gap:16px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:16px}
    .price-item strong{color:#18336f}
    .muted{color:var(--muted)}
    .service-net{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    @media (max-width: 980px){
      .hero-grid,.split,.grid-4,.grid-3,.reviews,.articles,.footer-grid,.footer-top,.service-net,.form-grid{grid-template-columns:1fr}
      .stats{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav{display:none;width:100%;padding:12px 0 4px}
      .nav.open{display:flex;justify-content:flex-start}
      .header-row{flex-wrap:wrap}
      .timeline-item{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .hero-main{padding:24px}
      h1{font-size:32px}
      .section-head h2{font-size:24px}
      .btn{width:100%}
      .hero-actions{display:grid;width:100%}
      .topbar .inner{font-size:12px}
      .floating{right:12px;bottom:12px}
    }