:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#f9fbff;
      --ink:#183042;
      --muted:#5f7280;
      --line:#dfe8f1;
      --primary:#2d7ef7;
      --primary-2:#7b5cff;
      --accent:#17c3b2;
      --warm:#ffb84d;
      --shadow:0 18px 45px rgba(27, 59, 107, .10);
      --shadow-soft:0 10px 25px rgba(27, 59, 107, .08);
      --radius:22px;
      --radius-sm:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at top left, rgba(45,126,247,.12), transparent 30%),
        radial-gradient(circle at top right, rgba(123,92,255,.12), transparent 28%),
        linear-gradient(180deg,#f9fbff 0%, #f5f7fb 30%, #f7f8fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .site-header,.site-footer{position:relative;z-index:10}
    .site-header{
      backdrop-filter:blur(14px);
      background:rgba(246,247,251,.78);
      border-bottom:1px solid rgba(223,232,241,.8);
      position:sticky;top:0;
    }
    .nav{
      min-height:76px;
      display:flex;align-items:center;justify-content:space-between;gap:16px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:44px;height:44px;object-fit:contain;background:#fff;border-radius:14px;box-shadow:var(--shadow-soft);padding:6px}
    .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:#365263;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(--primary),var(--primary-2));transition:.25s}
    .nav-links a:hover: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;border-radius:999px;padding:12px 18px;
      font-weight:600;font-size:14px;transition:.25s ease;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 12px 25px rgba(45,126,247,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(45,126,247,.28)}
    .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#bfd0e3}
    .mobile-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    .hero{
      padding:42px 0 18px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.18fr .82fr;gap:22px;align-items:stretch;
    }
    .hero-card,.glass-card,.section-card,.faq-item,.review-card,.article-card,.service-card,.stat-card,.quote-card,.compare-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(223,232,241,.95);
      box-shadow:var(--shadow-soft);
      border-radius:var(--radius);
    }
    .hero-card{padding:32px;position:relative;overflow:hidden}
    .hero-card:before,.section-card:before{content:"";position:absolute;inset:auto -10% -30% auto;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle, rgba(45,126,247,.12), transparent 65%);pointer-events:none}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(45,126,247,.08);color:#245fbf;font-size:13px;font-weight:600;
    }
    h1{margin:16px 0 14px;font-size:clamp(30px,5vw,54px);line-height:1.05;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:62ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .point{
      padding:14px 15px;border-radius:18px;background:linear-gradient(180deg,#fff, #f7faff);
      border:1px solid var(--line);
    }
    .point b{display:block;font-size:18px;margin-bottom:4px}
    .point span{font-size:13px;color:var(--muted);line-height:1.45}
    .hero-side{display:grid;gap:14px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .stat-card{padding:18px}
    .stat-card .num{font-size:28px;font-weight:800;line-height:1;color:var(--ink)}
    .stat-card .label{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.5}
    .promo-card{padding:20px;background:linear-gradient(160deg, rgba(45,126,247,.08), rgba(123,92,255,.08));border-radius:var(--radius);border:1px solid rgba(45,126,247,.16)}
    .promo-card h2{margin:0 0 10px;font-size:18px}
    .promo-card p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .section{padding:18px 0}
    .section-card{padding:28px;position:relative;overflow:hidden}
    .section-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-end;margin-bottom:18px;flex-wrap:wrap}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:68ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .service-card,.review-card,.article-card,.faq-item,.compare-card{padding:18px}
    .service-card h3,.review-card h3,.article-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.article-card p,.review-card p,.faq-item p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .tag{padding:8px 12px;border-radius:999px;background:#f4f7fc;border:1px solid var(--line);font-size:13px;color:#365263}
    .timeline{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .step .index{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;display:grid;place-items:center;font-weight:700}
    .step h3{margin:2px 0 6px;font-size:16px}
    .step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f7faff;color:#20384a;font-size:14px}
    td{color:#375062;font-size:14px;line-height:1.65}
    .highlight{font-weight:700;color:#103b79}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px
    }
    .stars{color:#ffb84d;font-size:20px;letter-spacing:2px}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:16px
    }
    .form{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px
    }
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:600;color:#274152}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #ced9e4;background:#fff;color:var(--ink);
      font:inherit;outline:none;transition:.2s;
    }
    input:focus,select:focus,textarea:focus{border-color:#8ab3ff;box-shadow:0 0 0 4px rgba(45,126,247,.08)}
    textarea{min-height:120px;resize:vertical}
    .submit-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:2px}
    .small{font-size:13px;color:var(--muted);line-height:1.6}
    .faq-list{display:grid;gap:12px}
    .faq-item summary{
      list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:700;color:#244055
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:20px;color:#54718d}
    .faq-item[open] summary:after{content:"–"}
    .faq-item p{padding-top:12px}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-card .meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}
    .chip{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(45,126,247,.08);color:#245fbf;font-size:12px}
    .footer-links,.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .site-footer{
      margin-top:18px;padding:24px 0 30px;background:#eef3f8;border-top:1px solid #d8e2ec;color:#20384a
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer-box{padding:20px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
    .footer-box p,.footer-box a{color:#355468}
    .footer-box .footer-links a{padding:6px 0}
    .copyright{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:#5f7280}
    .float-tools{
      position:fixed;right:18px;bottom:18px;display:grid;gap:10px;z-index:30
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(223,232,241,.95);background:#fff;display:grid;place-items:center;box-shadow:var(--shadow);cursor:pointer
    }
    .float-panel{
      position:fixed;right:18px;bottom:78px;width:min(320px,calc(100vw - 36px));background:#fff;border:1px solid var(--line);
      border-radius:22px;box-shadow:var(--shadow);padding:14px;display:none;z-index:30
    }
    .float-panel.show{display:block}
    .qr{display:grid;grid-template-columns:88px 1fr;gap:12px;align-items:center}
    .qr img{width:88px;height:88px;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
    .fade-up{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease}
    .fade-up.in{opacity:1;transform:translateY(0)}
    .mobile-menu{display:none}
    @media (max-width: 980px){
      .hero-grid,.split,.footer-grid,.grid-4,.grid-3,.articles{grid-template-columns:1fr}
      .hero-points,.metric-grid{grid-template-columns:repeat(2,1fr)}
      .nav-links,.nav-cta{display:none}
      .mobile-toggle{display:inline-flex}
      .mobile-menu{
        display:none;padding:0 0 16px
      }
      .mobile-menu.show{display:block}
      .mobile-menu .menu-inner{
        display:grid;gap:10px;padding:14px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)
      }
      .mobile-menu a{padding:10px 2px;color:#355468;border-bottom:1px solid #edf2f7}
      .mobile-menu a:last-child{border-bottom:0}
    }
    @media (max-width: 640px){
      .hero{padding-top:24px}
      .hero-card,.section-card{padding:20px}
      .hero-points,.metric-grid,.form{grid-template-columns:1fr}
      .section-head h2{font-size:24px}
      .brand strong{font-size:16px}
      .brand span{display:none}
      .float-tools{right:12px;bottom:12px}
      .float-panel{right:12px;bottom:72px}
    }