:root{
      --bg:#f5f8ff;
      --card:#ffffff;
      --card-2:#f0f6ff;
      --primary:#0d47a1;
      --primary-2:#1e88e5;
      --accent:#19a7ff;
      --text:#17304f;
      --muted:#5a6b82;
      --border:#d9e4f3;
      --shadow:0 16px 40px rgba(13,71,161,.10);
      --radius:20px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:linear-gradient(180deg,#edf5ff 0%,#f7fbff 22%,#f5f8ff 100%);color:var(--text);line-height:1.65}
    img{display:block;max-width:100%}
    a{color:var(--primary);text-decoration:none}
    a:hover{color:var(--primary-2)}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(245,248,255,.88);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(217,228,243,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:74px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--border);box-shadow:0 8px 22px rgba(13,71,161,.08)}
    .brand-text{display:flex;flex-direction:column;min-width:0}
    .brand-text strong{font-size:18px;line-height:1.1;color:#102947}
    .brand-text span{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-toggle{display:none;border:1px solid var(--border);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#28405f;padding:8px 10px;border-radius:10px}
    .nav-links a:hover{background:#eaf3ff}
    .hero{padding:30px 0 18px}
    .hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-copy{background:linear-gradient(135deg,#ffffff 0%,#f4f8ff 100%);border:1px solid var(--border);border-radius:28px;padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .hero-copy:before,.hero-copy:after{content:"";position:absolute;border-radius:999px;background:radial-gradient(circle,rgba(25,167,255,.18),rgba(25,167,255,0) 66%)}
    .hero-copy:before{width:240px;height:240px;right:-80px;top:-70px}
    .hero-copy:after{width:180px;height:180px;right:70px;bottom:-90px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#e7f1ff;border:1px solid #d1e5ff;color:#194c8e;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:600}
    h1{margin:14px 0 12px;font-size:clamp(30px,4vw,52px);line-height:1.06;color:#0e2b57;letter-spacing:-.02em}
    .hero-copy p{margin:0;color:#33506f;font-size:16px;max-width:56ch}
    .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:none;border-radius:14px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.22s ease;min-height:46px}
    .btn-primary{background:linear-gradient(135deg,var(--primary) 0%,#1666cc 100%);color:#fff;box-shadow:0 12px 26px rgba(13,71,161,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(13,71,161,.28)}
    .btn-ghost{background:#fff;color:var(--primary);border:1px solid #c7d8ee}
    .btn-ghost:hover{background:#edf5ff;transform:translateY(-2px)}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .badge{padding:8px 12px;border-radius:999px;background:#f2f7ff;border:1px solid #d7e4f7;color:#35587f;font-size:13px}
    .hero-panel{display:grid;grid-template-columns:1fr;gap:14px}
    .metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .metric{background:linear-gradient(180deg,#ffffff,#f7fbff);border:1px solid var(--border);border-radius:22px;padding:18px;box-shadow:0 10px 24px rgba(13,71,161,.08)}
    .metric strong{display:block;font-size:26px;color:#0f3f83}
    .metric span{color:var(--muted);font-size:13px}
    .hero-side-card{background:linear-gradient(180deg,#0d47a1,#1e88e5);color:#fff;border-radius:28px;padding:24px;box-shadow:0 18px 40px rgba(13,71,161,.2);position:relative;overflow:hidden}
    .hero-side-card h2{margin:0 0 10px;font-size:22px}
    .hero-side-card p{margin:0 0 18px;color:rgba(255,255,255,.88)}
    .hero-side-card ul{margin:0;padding-left:18px;display:grid;gap:10px}
    .hero-side-card li{color:#fff}
    .section{padding:18px 0}
    .section h2{margin:0 0 12px;font-size:28px;line-height:1.15;color:#11315f}
    .section-lead{margin:0 0 20px;color:var(--muted);max-width:70ch}
    .card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{background:var(--card);border:1px solid var(--border);border-radius:22px;padding:20px;box-shadow:0 10px 24px rgba(13,71,161,.06);transition:.24s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(13,71,161,.12)}
    .card h3{margin:0 0 10px;font-size:18px;color:#10345f}
    .card p,.card li{margin:0;color:var(--muted)}
    .card ul{margin:0;padding-left:18px;display:grid;gap:8px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{background:#fff;border:1px solid var(--border);border-radius:22px;padding:20px;position:relative}
    .step .num{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,#0d47a1,#1e88e5);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:12px}
    .table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:0 10px 24px rgba(13,71,161,.06)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:15px 16px;border-bottom:1px solid #e7eef8;text-align:left;vertical-align:top}
    th{background:#f3f8ff;color:#12345f;font-size:14px}
    td{color:#435a77}
    .star{color:#f6a800;font-weight:800}
    .split .card, .split .table-wrap{height:100%}
    .pill-list{display:flex;flex-wrap:wrap;gap:10px}
    .pill{background:#eef5ff;border:1px solid #d7e4f7;color:#31577f;padding:9px 12px;border-radius:999px;font-size:13px}
    .accordion{display:grid;gap:12px}
    .faq-item{background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden}
    .faq-q{width:100%;border:none;background:#fff;color:#13355d;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:16px;font-weight:700;cursor:pointer;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px;color:var(--muted)}
    .faq-item.open .faq-a{padding-bottom:16px;max-height:180px}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{background:linear-gradient(180deg,#ffffff,#f6faff);border:1px solid var(--border);border-radius:22px;padding:20px}
    .review .role{color:#2d5d94;font-weight:700;margin-bottom:8px}
    .review .name{color:#17304f;font-weight:800}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:140px 1fr;gap:14px;background:#fff;border:1px solid var(--border);border-radius:18px;padding:16px}
    .timeline-item .time{font-weight:800;color:#0f3f83}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .article{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:18px;padding:16px}
    .article small{color:#6a7f9b}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;font-weight:700;color:#204066}
    input,select,textarea{width:100%;border:1px solid #cfdcef;border-radius:14px;padding:13px 14px;font:inherit;color:#183252;background:#fff;outline:none;transition:.2s ease}
    input:focus,select:focus,textarea:focus{border-color:#4d8fe6;box-shadow:0 0 0 4px rgba(77,143,230,.12)}
    textarea{min-height:120px;resize:vertical}
    .submit-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:6px}
    .footer{margin-top:8px;background:#0b2d61;color:#dce9ff;padding:28px 0}
    .footer a{color:#ffffff}
    .footer .muted{color:#bfd0ea}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr;gap:18px;align-items:start}
    .footer .brand-text strong,.footer h3{color:#fff}
    .footer .brand-text span{color:#bfd0ea}
    .footer-links{display:grid;gap:10px}
    .footer-links a{display:inline-block}
    .floating{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:16px;border:none;background:linear-gradient(135deg,#0d47a1,#1e88e5);color:#fff;box-shadow:0 14px 28px rgba(13,71,161,.28);cursor:pointer}
    .float-kefu{position:fixed;left:18px;bottom:18px;z-index:60;background:#fff;border:1px solid var(--border);border-radius:18px;padding:12px;box-shadow:0 14px 28px rgba(13,71,161,.12);max-width:170px}
    .float-kefu img{border-radius:14px;width:100%;height:auto}
    .subtle{color:var(--muted)}
    .anchor-grid{display:flex;flex-wrap:wrap;gap:10px}
    .anchor-grid a{padding:8px 12px;border:1px solid var(--border);border-radius:999px;background:#fff;color:#35557d;font-size:13px}
    .anchor-grid a:hover{background:#eef5ff}
    .service-network{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .mini-map{background:linear-gradient(180deg,#ffffff,#f5f9ff);border:1px solid var(--border);border-radius:20px;padding:18px}
    .compare-tags{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .tag-box{border:1px dashed #cddcf0;border-radius:18px;padding:16px;background:#f8fbff}
    .scroll-x{overflow-x:auto}
    .fade-in{opacity:0;transform:translateY(12px);transition:.55s ease}
    .fade-in.visible{opacity:1;transform:translateY(0)}
    @media (max-width: 1024px){
      .hero-inner,.split,.card-grid,.flow,.reviews,.service-network,.footer-grid{grid-template-columns:1fr 1fr}
      .metric-grid{grid-template-columns:repeat(3,1fr)}
      .timeline-item{grid-template-columns:1fr}
      .article-list{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:12px 0 16px;flex-direction:column;align-items:flex-start}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
      .hero-inner,.split,.card-grid,.flow,.reviews,.service-network,.footer-grid,.compare-tags,.metric-grid,.form-grid{grid-template-columns:1fr}
      .hero-copy{padding:22px}
      .hero-side-card{padding:20px}
      .section h2{font-size:24px}
      .article{flex-direction:column}
      .float-kefu{max-width:140px}
    }