:root{
      --bg:#f7f6f2;
      --bg2:#eef3fb;
      --card:#ffffffcc;
      --text:#1f2937;
      --muted:#5b6575;
      --line:#dbe3ef;
      --brand:#6b5cff;
      --brand2:#00b3a6;
      --accent:#ffb347;
      --shadow:0 18px 40px rgba(27,39,61,.08);
      --radius:22px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(107,92,255,.10), transparent 28%),
        radial-gradient(circle at 85% 12%, rgba(0,179,166,.10), transparent 24%),
        linear-gradient(180deg, #fff 0%, var(--bg) 42%, #f9fbff 100%);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(255,255,255,.78);
      border-bottom:1px solid rgba(219,227,239,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:76px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain}
    .brand .txt{display:flex;flex-direction:column;min-width:0}
    .brand strong{font-size:18px;letter-spacing:.5px}
    .brand span{font-size:12px;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px 14px;align-items:center}
    .nav-links a{font-size:14px;color:#2d3748;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover{background:#eef2ff;color:#3b2fd8}
    .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:700;cursor:pointer;transition:.25s;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#8d7bff);color:#fff;box-shadow:0 12px 24px rgba(107,92,255,.22)}
    .btn-secondary{background:#fff;color:#243247;border-color:var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(20,35,66,.12)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    .hero{
      padding:28px 0 18px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch;
    }
    .hero-main{
      position:relative;overflow:hidden;border-radius:30px;padding:34px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.92), rgba(244,248,255,.88)),
        linear-gradient(135deg, rgba(107,92,255,.10), rgba(0,179,166,.08));
      border:1px solid rgba(214,223,237,.85); box-shadow:var(--shadow);
      min-height:420px;
    }
    .hero-main::before,.hero-main::after{
      content:"";position:absolute;border-radius:999px;filter:blur(0);
      background:radial-gradient(circle, rgba(107,92,255,.22), transparent 60%);
      animation:float 8s ease-in-out infinite;
    }
    .hero-main::before{width:180px;height:180px;right:-40px;top:-30px}
    .hero-main::after{width:240px;height:240px;left:-90px;bottom:-120px;background:radial-gradient(circle, rgba(0,179,166,.18), transparent 58%)}
    @keyframes float{50%{transform:translateY(-10px) translateX(8px)}}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:#eef4ff;border:1px solid #dfe7fb;color:#3850b9;font-size:13px;font-weight:700}
    h1{margin:18px 0 14px;font-size:clamp(32px, 5vw, 56px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px
    }
    .mini{
      background:rgba(255,255,255,.88);border:1px solid rgba(218,226,239,.9);border-radius:18px;padding:14px 15px
    }
    .mini strong{display:block;font-size:20px;color:#152033}
    .mini span{font-size:13px;color:var(--muted)}
    .hero-side{
      display:grid;gap:16px
    }
    .glass-card{
      background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(250,252,255,.82));
      border:1px solid rgba(218,226,239,.9);border-radius:26px;box-shadow:var(--shadow);
      padding:22px
    }
    .glass-card h3{margin:0 0 10px;font-size:18px}
    .glass-card p,.glass-card li{color:var(--muted)}
    .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0 8px}
    .stat{
      background:var(--card);border:1px solid rgba(218,226,239,.9);border-radius:20px;padding:18px;
      box-shadow:0 10px 24px rgba(24,33,62,.06)
    }
    .stat .num{font-size:26px;font-weight:800;color:#182033}
    .stat .cap{font-size:13px;color:var(--muted)}
    section{padding:28px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:72ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{
      background:rgba(255,255,255,.9);border:1px solid rgba(219,227,239,.92);border-radius:24px;
      padding:22px;box-shadow:0 12px 28px rgba(25,35,60,.06);transition:.25s
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(25,35,60,.1)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#f3f6ff;border:1px solid #dde4ff;color:#3448b5;font-size:13px}
    .timeline{display:grid;gap:12px}
    .step{
      display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;
      padding:18px;border-radius:20px;background:#fff;border:1px solid var(--line)
    }
    .dot{
      width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800
    }
    .step h3{margin:0 0 6px;font-size:18px}
    .step p{margin:0;color:var(--muted)}
    .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:15px 14px;border-bottom:1px solid #edf1f7;text-align:left;vertical-align:top}
    th{background:#f7f9ff;color:#213048;font-size:14px}
    td{color:#334155;font-size:14px}
    .highlight{color:#0c7d6f;font-weight:700}
    .compare-top{
      display:grid;grid-template-columns:1fr .85fr;gap:16px;align-items:stretch
    }
    .rating{
      background:linear-gradient(135deg,#fff 0%, #f4f8ff 100%);border:1px solid var(--line);border-radius:24px;padding:24px
    }
    .stars{font-size:28px;letter-spacing:4px;color:#ffb347}
    .score{font-size:42px;font-weight:900;margin:6px 0;color:#1f2b43}
    details{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 16px;overflow:hidden
    }
    details + details{margin-top:12px}
    summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;color:#1f2b43}
    summary::-webkit-details-marker{display:none}
    details p{margin:0 0 16px;color:var(--muted)}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .avatar{
      width:42px;height:42px;border-radius:50%;
      background:linear-gradient(135deg,rgba(107,92,255,.16),rgba(0,179,166,.16));
      display:grid;place-items:center;font-weight:800;color:#334155
    }
    .review p{margin:0;color:#445066}
    .case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .case{
      padding:18px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,#f8fbff)
    }
    .case h3{margin:8px 0 8px;font-size:17px}
    .case small{color:#64748b}
    .article-list{display:grid;gap:12px}
    .article{
      display:flex;justify-content:space-between;gap:16px;align-items:center;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line)
    }
    .article b{display:block;margin-bottom:4px}
    .article span{color:var(--muted);font-size:14px}
    .form-grid{
      display:grid;grid-template-columns:1fr 1fr;gap:14px
    }
    label{display:block;font-size:14px;font-weight:700;margin:0 0 8px;color:#243247}
    input,select,textarea{
      width:100%;border:1px solid #d8e1ee;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:#223047;outline:none;
      transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:#7a74ff;box-shadow:0 0 0 4px rgba(122,116,255,.12)}
    textarea{min-height:122px;resize:vertical}
    .footer{
      padding:28px 0 22px;background:#edf2f8;border-top:1px solid #dbe4ef;color:#243247
    }
    .footer a{color:#1d4ed8}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .foot-links{display:flex;flex-wrap:wrap;gap:10px}
    .foot-links a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #dce5f0}
    .fixed-tools{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .tool{
      display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:16px;
      background:linear-gradient(135deg,var(--brand),#7ed6cc);color:#fff;box-shadow:0 14px 28px rgba(63,56,175,.22)
    }
    .客服{
      position:fixed;left:16px;bottom:16px;z-index:60;background:#fff;border:1px solid var(--line);border-radius:22px;padding:12px;box-shadow:var(--shadow);width:172px
    }
    .客服 img{width:100%;border-radius:14px;margin-top:8px}
    .subtle{color:var(--muted);font-size:14px}
    .section-bg{
      background:linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,.6));
      border-top:1px solid rgba(219,227,239,.55);border-bottom:1px solid rgba(219,227,239,.55)
    }
    .fade{opacity:0;transform:translateY(16px);transition:.6s ease}
    .fade.in{opacity:1;transform:none}
    .mobile-toggle{display:none}
    .service-network{
      display:grid;grid-template-columns:1.3fr .7fr;gap:16px
    }
    .network-map{
      padding:22px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(135deg,#fff,#f7fbff)
    }
    .network-items{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .network-items span{padding:9px 12px;border:1px solid #dce4f1;border-radius:999px;background:#fff}
    .price-chip{display:flex;flex-wrap:wrap;gap:10px}
    .price-chip span{padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:14px}
    @media (max-width: 1024px){
      .hero-grid,.compare-top,.service-network,.footer-grid,.grid-3,.reviews,.case-grid{grid-template-columns:1fr 1fr}
      .stat-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 768px){
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-flex}
      .mobile-toggle{display:inline-flex}
      .hero-grid,.compare-top,.service-network,.footer-grid,.grid-3,.reviews,.case-grid,.grid-2,.form-grid{grid-template-columns:1fr}
      .hero-main{padding:24px;min-height:auto}
      .hero-points,.stat-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      h1{font-size:34px}
      .fixed-tools{right:12px;bottom:12px}
      .客服{left:12px;bottom:12px;width:min(78vw,240px)}
      .mobile-panel{
        display:none;position:absolute;left:16px;right:16px;top:78px;z-index:55;
        background:#fff;border:1px solid var(--line);border-radius:20px;padding:14px;box-shadow:var(--shadow)
      }
      .mobile-panel.open{display:block}
      .mobile-panel a{display:block;padding:11px 10px;border-radius:12px}
      .mobile-panel a:hover{background:#f4f7ff}
    }