:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel2:#f2f6ff;
      --text:#172033;
      --muted:#5f6b84;
      --line:#dbe3f1;
      --brand:#2b63ff;
      --brand2:#7c4dff;
      --accent:#00b8d9;
      --good:#0f9d58;
      --warn:#f59e0b;
      --shadow:0 18px 50px rgba(18,39,84,.10);
      --shadow2:0 10px 24px rgba(34,63,145,.12);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at top left, rgba(43,99,255,.10), transparent 28%),
      radial-gradient(circle at top right, rgba(0,184,217,.10), transparent 24%),
      linear-gradient(180deg,#f8fbff 0%, #f7f8fc 34%, #f7f8fc 100%);
      color:var(--text);line-height:1.65}
    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{position:sticky;top:0;z-index:50;background:rgba(247,248,252,.82);backdrop-filter:saturate(1.2) blur(14px);border-bottom:1px solid rgba(219,227,241,.72)}
    .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;border-radius:12px;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#30415f;font-weight:600;opacity:.9}
    .nav-links a:hover,.nav-links a:focus{color:var(--brand)}
    .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:.24s ease;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%,var(--brand2) 100%);color:#fff;box-shadow:0 12px 24px rgba(43,99,255,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(43,99,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:#22304b}
    .btn-ghost:hover{border-color:#b8c6e3;transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;width:44px;height:44px;align-items:center;justify-content:center}
    .menu-btn span,.menu-btn span:before,.menu-btn span:after{display:block;width:18px;height:2px;background:#243149;border-radius:2px;position:relative;transition:.2s}
    .menu-btn span:before,.menu-btn span:after{content:"";position:absolute;left:0}
    .menu-btn span:before{top:-6px}.menu-btn span:after{top:6px}
    .hero{padding:42px 0 24px;position:relative;overflow:hidden}
    .hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:24px;align-items:stretch}
    .hero-card,.glass-card{background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(255,255,255,.84));border:1px solid rgba(219,227,241,.86);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-card{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(43,99,255,.10);color:#2147cc;font-size:13px;font-weight:700}
    h1{margin:18px 0 14px;font-size:clamp(30px,4.4vw,54px);line-height:1.06;letter-spacing:-.02em}
    .lead{font-size:17px;color:var(--muted);max-width:46em;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .mini-stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:0 8px 20px rgba(24,52,110,.06)}
    .mini-stat b{display:block;font-size:20px;color:#101b31}
    .mini-stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
    .hero-side{display:grid;gap:16px}
    .side-panel{padding:22px}
    .side-panel h2{font-size:20px;margin:0 0 12px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#eef3ff;color:#294070;font-size:13px;border:1px solid #d9e3fb}
    .contact-mini{display:grid;grid-template-columns:1fr 128px;gap:16px;align-items:center}
    .qr{border:1px solid var(--line);border-radius:18px;padding:10px;background:#fff;text-align:center}
    .qr img{width:100%;border-radius:12px;object-fit:cover}
    .qr small{display:block;color:var(--muted);margin-top:8px}
    .section{padding:18px 0 6px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin:20px 0 16px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:56ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .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:var(--panel);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 8px 22px rgba(17,33,72,.05);transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease}
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow2);border-color:#c8d7f5}
    .metric{font-size:28px;font-weight:800;color:#13203a}
    .card h3{margin:10px 0 8px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(43,99,255,.12),rgba(124,77,255,.12));color:var(--brand);font-weight:800}
    .split{display:grid;grid-template-columns:1.02fr .98fr;gap:16px;align-items:start}
    .steps{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:56px 1fr;gap:14px;align-items:start;padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .step-num{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-weight:800;display:grid;place-items:center;font-size:18px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid #edf1f8;text-align:left;vertical-align:top;font-size:14px}
    th{background:#f6f8ff;color:#22304b;font-size:14px}
    tr:hover td{background:#fbfcff}
    .rating{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
    .stars{color:#ffb100;font-size:18px;letter-spacing:2px}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef8ff;color:#0b6a96;font-size:12px;font-weight:700}
    .compare-card{background:linear-gradient(180deg,#ffffff,#f8fbff);border:1px solid var(--line);border-radius:20px;padding:20px}
    .review{display:flex;flex-direction:column;gap:12px;height:100%}
    .review .who{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#dbe8ff,#f2dbff);display:grid;place-items:center;font-weight:800;color:#355}
    .review small{color:var(--muted)}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:34px 1fr;gap:12px}
    .timeline-dot{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));margin:10px auto 0;box-shadow:0 0 0 6px rgba(43,99,255,.08)}
    .timeline-body{padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .service-map{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
    .service-map span{padding:10px 8px;text-align:center;border-radius:14px;background:#fff;border:1px solid var(--line);font-size:13px;color:#2a3958}
    .list-cols{columns:2;column-gap:20px}
    .list-cols li{break-inside:avoid;padding:8px 0;color:#2d3b57}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article a{display:block}
    .article .meta{font-size:13px;color:var(--muted);margin-top:10px}
    .form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field label{font-size:14px;font-weight:700;color:#25324d}
    .field input,.field select,.field textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:.2s}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#8bb0ff;box-shadow:0 0 0 4px rgba(43,99,255,.10)}
    .field textarea{min-height:132px;resize:vertical}
    .form .full{grid-column:1 / -1}
    .form-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:4px}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 18px;box-shadow:0 8px 20px rgba(17,33,72,.04)}
    summary{list-style:none;cursor:pointer;padding:16px 0;font-weight:700;color:#1c2943;display:flex;align-items:center;justify-content:space-between;gap:12px}
    summary::-webkit-details-marker{display:none}
    summary::after{content:"+";font-size:22px;color:var(--brand);transition:transform .2s}
    details[open] summary::after{content:"–"}
    details p{margin:0 0 16px;color:var(--muted)}
    .floating{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{display:flex;align-items:center;justify-content:center;min-width:52px;height:52px;padding:0 16px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 26px rgba(43,99,255,.25);font-weight:700}
    .float-btn.secondary{background:#fff;color:#22304b;border:1px solid var(--line)}
    .footer{margin-top:18px;padding:24px 0 28px;background:#f1f5ff;border-top:1px solid #dde6f6;color:#26324c}
    .footer a{color:#1f55e6}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start}
    .footer-note{font-size:13px;color:#5a6781;margin-top:10px}
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
    .reveal.in{opacity:1;transform:translateY(0)}
    @media (max-width: 1024px){
      .hero-grid,.split,.grid-4,.grid-3,.articles,.footer-grid,.service-map{grid-template-columns:1fr 1fr}
      .service-map{grid-template-columns:repeat(3,1fr)}
    }
    @media (max-width: 760px){
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:66px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start;gap:12px}
      .nav-links.open{display:flex}
      .menu-btn{display:inline-flex}
      .nav{position:relative}
      .hero-grid,.grid-4,.grid-3,.grid-2,.split,.footer-grid,.articles,.form{grid-template-columns:1fr}
      .hero-card,.side-panel{padding:22px}
      .hero-points{grid-template-columns:1fr}
      .contact-mini{grid-template-columns:1fr}
      .list-cols{columns:1}
      .service-map{grid-template-columns:repeat(2,1fr)}
      .section-head{flex-direction:column;align-items:flex-start}
      .nav-cta .btn-ghost{display:none}
    }