:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f3f7ff;
      --text:#172033;
      --muted:#5f6b84;
      --line:#dbe3f3;
      --brand:#1d64ff;
      --brand2:#00c2ff;
      --accent:#ff8a3d;
      --shadow:0 18px 50px rgba(29,100,255,.12);
      --radius:22px;
      --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",Arial,sans-serif;background:
      radial-gradient(circle at 10% 0%, rgba(0,194,255,.12), transparent 28%),
      radial-gradient(circle at 90% 10%, rgba(29,100,255,.12), transparent 26%),
      linear-gradient(180deg, #f9fbff 0%, #f4f7fc 48%, #f7f9fd 100%);
      color:var(--text);line-height:1.7}
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(16px);border-bottom:1px solid rgba(219,227,243,.85)}
    .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 10px 24px rgba(29,100,255,.12)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}
    .nav-links a{padding:8px 12px;border-radius:999px;color:var(--text);font-size:14px}
    .nav-links a:hover{background:#eef4ff;color:var(--brand)}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px}
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:stretch}
    .hero-main,.hero-side,.card,.panel{background:rgba(255,255,255,.92);border:1px solid rgba(219,227,243,.95);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before{content:"";position:absolute;inset:auto -40px -60px auto;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle, rgba(0,194,255,.22), transparent 66%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef5ff;color:var(--brand);font-weight:600;font-size:13px}
    h1{margin:14px 0 12px;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{font-size:17px;color:var(--muted);max-width:58ch}
    .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px rgba(29,100,255,.24)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px)}
    .hero-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
    .metric{padding:16px;border-radius:18px;background:linear-gradient(180deg,#f7fbff,#eef4ff);border:1px solid #dfe8fb}
    .metric strong{display:block;font-size:24px;color:#10306b}
    .metric span{font-size:13px;color:var(--muted)}
    .hero-side{padding:18px;display:grid;gap:12px}
    .side-card{padding:16px;border-radius:18px;background:var(--panel-2);border:1px solid #dae6ff}
    .side-card h3{margin:0 0 8px;font-size:16px}
    .side-card p,.side-card li{margin:0;color:var(--muted);font-size:14px}
    .side-list{display:grid;gap:10px;padding:0;margin:0;list-style:none}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:64ch}
    .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{padding:20px}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#eef5ff;border:1px solid #d9e5ff;color:#25406f;font-size:13px}
    .timeline{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:58px 1fr;gap:14px;align-items:start;padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .step b{display:grid;place-items:center;width:58px;height:58px;border-radius:16px;background:linear-gradient(135deg,#1d64ff,#00c2ff);color:#fff;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:14px 16px;border-bottom:1px solid #edf2fb;text-align:left;vertical-align:top}
    th{background:#f4f8ff;color:#1a2d55;font-size:14px}
    td{font-size:14px;color:#33415f}
    .rating{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .stars{color:#ff9b2f;font-size:22px;letter-spacing:2px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px}
    details+details{margin-top:12px}
    summary{cursor:pointer;font-weight:700;color:var(--text)}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";float:right;color:var(--brand);font-weight:800}
    details[open] summary:after{content:"−"}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review .role{font-size:13px;color:var(--brand);font-weight:700;margin-bottom:8px}
    .review p{margin:0;color:var(--muted)}
    .article-list{display:grid;gap:12px}
    .article{display:flex;justify-content:space-between;gap:12px;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .article small{color:var(--muted)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:8px}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #cad6ec;background:#fff;color:var(--text);font:inherit}
    textarea{min-height:120px;resize:vertical}
    .full{grid-column:1/-1}
    .footer{padding:28px 0 26px;border-top:1px solid var(--line);margin-top:10px;background:#f7f9fd;color:var(--text)}
    .footer a{color:#194cff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:start}
    .mini-links{display:flex;flex-wrap:wrap;gap:10px}
    .mini-links a{padding:7px 10px;border-radius:999px;background:#eef4ff}
    .float-tools{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-tools a,.float-tools button{width:52px;height:52px;border:none;border-radius:16px;background:linear-gradient(135deg,#1d64ff,#00c2ff);color:#fff;box-shadow:0 14px 30px rgba(29,100,255,.26);display:grid;place-items:center;font-weight:800;cursor:pointer}
    .toast{display:none}
    .section-divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:10px 0 0}
    .headline-note{font-size:14px;color:var(--muted)}
    .floating-box{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f5f9ff);border:1px solid var(--line)}
    .image-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .image-row img{border-radius:18px;border:1px solid var(--line);box-shadow:0 12px 28px rgba(23,32,51,.08)}
    .service-net{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .service-net div{padding:14px;border-radius:16px;background:#fff;border:1px solid var(--line);text-align:center;color:#31415f}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.reviews,.footer-grid,.service-net{grid-template-columns:1fr}
      .grid-2,.form-grid{grid-template-columns:1fr}
      .hero-main{padding:26px}
      .nav-links{display:none;width:100%;padding-top:10px}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
      .menu-btn{display:inline-flex}
      .section-head{flex-direction:column;align-items:flex-start}
      .image-row{grid-template-columns:1fr}
    }
    .reveal{opacity:0;transform:translateY(16px);transition:.7s ease}
    .reveal.in{opacity:1;transform:none}