:root{
      --bg:#f4f7fb;
      --bg2:#eef4ff;
      --card:#ffffff;
      --card2:#f7fbff;
      --text:#172033;
      --muted:#5b657a;
      --line:#dbe4f0;
      --brand:#2f6bff;
      --brand2:#11b8aa;
      --accent:#ff8a3d;
      --shadow:0 18px 50px rgba(29, 52, 100, .10);
      --radius:22px;
      --radius2:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(47,107,255,.10), transparent 32%),
        radial-gradient(circle at top right, rgba(17,184,170,.09), transparent 26%),
        linear-gradient(180deg, #fbfdff 0%, var(--bg) 100%);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header, main, footer{width:100%}
    .topbar{
      position:sticky; top:0; z-index:1000;
      backdrop-filter: blur(12px);
      background:rgba(245,248,252,.82);
      border-bottom:1px solid rgba(219,228,240,.9);
    }
    .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; flex:none}
    .brand-text{display:flex;flex-direction:column; min-width:0}
    .brand-text strong{font-size:1rem; letter-spacing:.4px}
    .brand-text span{font-size:.84rem; color:var(--muted)}
    .nav-links{
      display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end;
    }
    .nav-links a{
      font-size:.95rem; color:#344056; padding:8px 10px; border-radius:999px;
      transition:all .22s ease;
    }
    .nav-links a:hover,.nav-links a:focus-visible{background:#eaf1ff;color:var(--brand); transform:translateY(-1px)}
    .nav-actions{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:11px 16px;
      font-weight:700; cursor:pointer; transition:transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px); box-shadow:0 10px 24px rgba(47,107,255,.16)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#6f8fff); color:#fff}
    .btn-secondary{background:#fff; color:var(--brand); border-color:#cdd9ff}
    .menu-toggle{display:none; background:#fff; border:1px solid var(--line); padding:10px 12px; border-radius:12px}
    .hero{
      position:relative;
      overflow:hidden;
      padding:46px 0 22px;
    }
    .hero-inner{
      display:grid; grid-template-columns:1.18fr .82fr; gap:24px; align-items:stretch;
    }
    .hero-panel{
      background:
        linear-gradient(135deg, rgba(47,107,255,.10), rgba(17,184,170,.08)),
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(248,250,255,.98));
      border:1px solid rgba(219,228,240,.88);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:34px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel::before,.hero-panel::after{
      content:""; position:absolute; border-radius:50%;
      background:radial-gradient(circle, rgba(47,107,255,.18), rgba(47,107,255,0));
      pointer-events:none;
    }
    .hero-panel::before{width:260px;height:260px; right:-90px; top:-80px}
    .hero-panel::after{width:200px;height:200px; left:-70px; bottom:-70px; background:radial-gradient(circle, rgba(17,184,170,.16), rgba(17,184,170,0))}
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      background:#ecf4ff; color:#2958d8; padding:7px 12px; border-radius:999px; font-size:.88rem; font-weight:700;
    }
    h1{font-size:clamp(2rem, 5vw, 3.6rem); line-height:1.08; margin:16px 0 14px}
    .hero p{margin:0; color:var(--muted); font-size:1.04rem; max-width:58ch}
    .hero-ctas{display:flex; flex-wrap:wrap; gap:12px; margin:24px 0 18px}
    .hero-points{display:flex; flex-wrap:wrap; gap:10px}
    .chip{
      background:#fff; border:1px solid var(--line); color:#33415a;
      border-radius:999px; padding:8px 12px; font-size:.9rem;
      box-shadow:0 6px 16px rgba(30,47,77,.04);
    }
    .hero-side{
      display:grid; gap:16px;
    }
    .metric-grid{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px;
    }
    .metric{
      background:rgba(255,255,255,.88); border:1px solid var(--line); border-radius:22px;
      padding:18px; box-shadow:0 12px 26px rgba(26,44,82,.06);
    }
    .metric strong{display:block; font-size:1.42rem; margin-bottom:6px; color:#1e2a44}
    .metric span{color:var(--muted); font-size:.92rem}
    .mini-card{
      background:linear-gradient(180deg, #fff, #f7fbff);
      border:1px solid var(--line);
      border-radius:22px;
      padding:18px;
      box-shadow:0 12px 26px rgba(26,44,82,.06);
    }
    .mini-card h3{margin:0 0 10px; font-size:1.02rem}
    .mini-list{margin:0; padding:0; list-style:none; display:grid; gap:10px}
    .mini-list li{display:flex; gap:10px; color:#33415a}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2)); margin-top:.5em; flex:none}
    section{padding:20px 0}
    .section-head{
      display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:16px;
    }
    .section-head h2{margin:0; font-size:clamp(1.38rem, 2.8vw, 2rem)}
    .section-head p{margin:0; color:var(--muted); max-width:64ch}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:22px;
      box-shadow:0 10px 26px rgba(25,45,77,.05);
      transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
    }
    .card:hover{transform:translateY(-4px); box-shadow:0 18px 36px rgba(29,52,100,.10); border-color:#c6d8ff}
    .card h3,.card h4{margin:0 0 10px}
    .card p{margin:0; color:var(--muted)}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{
      padding:9px 12px; border-radius:999px; background:#f7f9fe; border:1px solid var(--line); color:#33415a; font-size:.92rem;
    }
    .workflow{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .step{
      position:relative; overflow:hidden;
      background:linear-gradient(180deg,#fff,#f8fbff);
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px;
    }
    .step .num{
      width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),#76a0ff); color:#fff; font-weight:800; margin-bottom:14px;
    }
    .compare-wrap{overflow:auto; border-radius:22px; border:1px solid var(--line); background:#fff; box-shadow:0 10px 26px rgba(25,45,77,.05)}
    table{width:100%; border-collapse:collapse; min-width:860px}
    th,td{padding:16px 14px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top}
    th{background:#f7faff; font-size:.95rem}
    .rating{
      display:flex; flex-direction:column; gap:10px; align-items:flex-start;
      background:linear-gradient(135deg, rgba(47,107,255,.09), rgba(17,184,170,.08));
      border:1px solid #d4e0ff;
      border-radius:24px;
      padding:22px;
    }
    .stars{color:#ffb437; letter-spacing:2px; font-size:1.25rem}
    .split{
      display:grid; grid-template-columns:1.02fr .98fr; gap:16px;
    }
    .gallery{
      display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
    }
    .gallery .card{padding:14px}
    .gallery .card .thumb{
      border-radius:16px; overflow:hidden; aspect-ratio:1/1;
      background:linear-gradient(135deg,#edf3ff,#f5fbff);
      border:1px solid var(--line);
      display:flex; align-items:center; justify-content:center;
    }
    .gallery .card img{width:100%; height:100%; object-fit:cover}
    .reviews{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .review .meta{display:flex; justify-content:space-between; gap:10px; margin-bottom:12px}
    .review .role{color:var(--brand); font-weight:700; font-size:.92rem}
    .review .quote{color:#33415a}
    .timeline{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .timeline .card{position:relative}
    .timeline .card::before{
      content:""; position:absolute; left:22px; top:22px; bottom:22px; width:2px;
      background:linear-gradient(180deg,var(--brand),rgba(47,107,255,0));
      opacity:.18;
    }
    .timeline .card strong{display:block; margin-left:16px}
    .timeline .card p{margin-left:16px}
    .articles{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .article{padding:22px}
    .article .date{display:inline-block; margin-bottom:10px; color:var(--brand); font-weight:700; font-size:.9rem}
    .faq{display:grid; gap:12px}
    details{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:0 18px;
      box-shadow:0 10px 20px rgba(25,45,77,.04);
    }
    summary{
      list-style:none; cursor:pointer; padding:18px 0; font-weight:700; color:#22304b;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{content:"+"; font-size:1.3rem; color:var(--brand)}
    details[open] summary::after{content:"–"}
    details p{margin:0 0 18px; color:var(--muted); padding-right:10px}
    .form-wrap{
      display:grid; grid-template-columns:1fr .92fr; gap:16px; align-items:start;
    }
    form{
      background:#fff; border:1px solid var(--line); border-radius:24px; padding:22px; box-shadow:var(--shadow);
    }
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .field{display:grid; gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-weight:700; color:#30405f; font-size:.95rem}
    input,select,textarea{
      width:100%; border:1px solid #ccd8eb; border-radius:14px; padding:13px 14px;
      font:inherit; color:var(--text); background:#fbfdff; outline:none;
      transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
    }
    textarea{min-height:128px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8ab0ff; box-shadow:0 0 0 4px rgba(47,107,255,.08)}
    .helper{
      background:linear-gradient(180deg,#f8fbff,#eef5ff);
      border:1px solid var(--line); border-radius:24px; padding:22px;
    }
    .helper ul{margin:12px 0 0; padding-left:18px; color:#33415a}
    .contact-box{
      display:grid; gap:14px;
      background:linear-gradient(180deg,#fff,#f7fbff);
      border:1px solid var(--line); border-radius:24px; padding:22px;
    }
    .contact-row{display:flex; align-items:center; gap:12px; flex-wrap:wrap}
    .qr{display:flex; gap:14px; align-items:center}
    .qr img{width:132px; height:132px; object-fit:cover; border-radius:18px; border:1px solid var(--line)}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:1200; display:grid; gap:10px;
    }
    .float-btn{
      width:52px; height:52px; border-radius:16px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),#6d90ff); color:#fff;
      box-shadow:0 14px 28px rgba(47,107,255,.28);
    }
    .float-btn.secondary{background:linear-gradient(135deg,var(--accent),#ffae71)}
    footer{
      margin-top:8px;
      background:#eef3fa;
      color:#1d2942;
      border-top:1px solid #d7e1ef;
      padding:26px 0 30px;
    }
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr .9fr; gap:16px}
    .footer-grid a{color:#2e4d95}
    .footer-grid a:hover{text-decoration:underline}
    .footer-bottom{
      margin-top:16px; padding-top:14px; border-top:1px solid #d7e1ef;
      display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between; color:#50607e; font-size:.92rem;
    }
    .links-inline{display:flex; flex-wrap:wrap; gap:12px}
    .article-list, .service-network, .price-list{display:grid; gap:12px}
    .price-item,.network-item{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding:14px 16px; border:1px solid var(--line); border-radius:16px; background:#fff;
    }
    .price-item strong,.network-item strong{display:block}
    .muted{color:var(--muted)}
    .anchor-pad{scroll-margin-top:96px}
    .mobile-only{display:none}
    .scroll-x{overflow:auto}
    @media (max-width: 1024px){
      .hero-inner,.split,.form-wrap,.footer-grid{grid-template-columns:1fr}
      .grid-4,.workflow,.timeline{grid-template-columns:repeat(2,1fr)}
      .grid-3,.reviews,.articles,.gallery{grid-template-columns:repeat(2,1fr)}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{
        display:flex; position:absolute; left:16px; right:16px; top:68px; padding:14px;
        flex-direction:column; align-items:flex-start; background:#fff; border:1px solid var(--line); border-radius:18px;
        box-shadow:var(--shadow);
      }
      .nav{position:relative}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .hero{padding-top:22px}
      .hero-panel{padding:24px}
      .grid-3,.grid-4,.workflow,.timeline,.reviews,.articles,.gallery,.metric-grid,.form-grid{grid-template-columns:1fr}
      .section-head{align-items:flex-start; flex-direction:column}
      .nav-actions .btn-secondary{display:none}
      .mobile-only{display:inline-flex}
      .qr{flex-direction:column; align-items:flex-start}
      .qr img{width:116px;height:116px}
      .footer-bottom{flex-direction:column}
    }
    .reveal{opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease}
    .reveal.visible{opacity:1; transform:none}