:root{
      --bg:#f6f8fc;
      --bg2:#eef5ff;
      --card:#ffffff;
      --text:#162033;
      --muted:#5f6b82;
      --line:#dbe4f2;
      --brand:#2563eb;
      --brand2:#7c3aed;
      --accent:#06b6d4;
      --good:#16a34a;
      --shadow:0 18px 50px rgba(29, 57, 115, .10);
      --radius:22px;
      --radius2:16px;
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(37,99,235,.12), transparent 28%),
        radial-gradient(circle at 90% 10%, rgba(6,182,212,.12), transparent 24%),
        linear-gradient(180deg, #fff 0%, var(--bg) 36%, #f7fbff 100%);
    }
    a{color:inherit;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;
      backdrop-filter: blur(14px);
      background: rgba(255,255,255,.82);
      border-bottom:1px solid rgba(219,228,242,.8);
    }
    .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}
    .brand strong{display:block;font-size:16px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .navlinks{
      display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:center;
      font-size:14px; color:#334155;
    }
    .navlinks a{padding:8px 10px;border-radius:999px;transition:.25s}
    .navlinks a:hover,.navlinks a.active{background:#edf4ff;color:#1d4ed8}
    .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; font-size:14px; cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px); box-shadow:0 12px 24px rgba(37,99,235,.14)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff}
    .btn-ghost{background:#fff;border-color:var(--line); color:var(--text)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px}
    .hero{
      padding:34px 0 20px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch;
    }
    .hero-card{
      background:linear-gradient(135deg, rgba(37,99,235,.08), rgba(124,58,237,.08) 55%, rgba(6,182,212,.06));
      border:1px solid rgba(219,228,242,.9);
      border-radius:30px;
      padding:30px;
      box-shadow:var(--shadow);
      position:relative;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:#fff;border:1px solid var(--line);
      color:#334155;font-size:13px;font-weight:700;
    }
    h1{font-size:clamp(30px, 4.5vw, 56px); line-height:1.06; margin:16px 0 14px}
    .lead{font-size:17px;line-height:1.8;color:var(--muted); max-width:58ch; margin:0 0 22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .point{
      background:#fff;border:1px solid rgba(219,228,242,.95);border-radius:18px;padding:14px 14px 13px
    }
    .point b{display:block;font-size:18px;margin-bottom:4px}
    .point span{font-size:13px;color:var(--muted);line-height:1.5}
    .side-card{
      background:linear-gradient(180deg,#fff, #f8fbff);
      border:1px solid rgba(219,228,242,.95);
      border-radius:30px;
      padding:22px;
      box-shadow:var(--shadow);
      display:flex; flex-direction:column; gap:16px;
    }
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{
      border-radius:20px; padding:16px;
      background:linear-gradient(180deg,#f9fbff,#eef5ff);
      border:1px solid #dde8fb;
    }
    .metric strong{display:block;font-size:24px;margin-bottom:4px;color:#0f172a}
    .metric span{font-size:13px;color:var(--muted)}
    .mini-list{display:grid;gap:10px}
    .mini-item{
      display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:16px;background:#fff;border:1px solid var(--line)
    }
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));margin-top:6px;flex:0 0 auto}
    section{padding:22px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}
    h2{margin:0;font-size:clamp(22px,2.4vw,34px)}
    .sub{margin:6px 0 0;color:var(--muted);line-height:1.7;max-width:72ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .card{
      background:var(--card); border:1px solid rgba(219,228,242,.96);
      border-radius:22px; padding:18px; box-shadow:0 10px 28px rgba(30,41,59,.06);
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .card:hover{transform:translateY(-3px); box-shadow:0 16px 40px rgba(30,41,59,.10)}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.7}
    .icon{
      width:44px;height:44px;border-radius:14px;margin-bottom:12px;
      background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(6,182,212,.16));
      display:grid;place-items:center;color:#1d4ed8;font-weight:900
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#334155;font-size:13px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .timeline{display:grid;gap:12px}
    .step{
      display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)
    }
    .num{
      width:34px;height:34px;border-radius:12px;flex:0 0 auto;
      display:grid;place-items:center;color:#fff;font-weight:800;
      background:linear-gradient(135deg,var(--brand),var(--brand2));
    }
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 16px;border-bottom:1px solid #edf2fb;text-align:left;vertical-align:top}
    th{background:#f7faff;color:#0f172a;font-size:14px}
    td{color:#334155;font-size:14px;line-height:1.7}
    .rating{
      display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:stretch
    }
    .scorebox{
      background:linear-gradient(135deg, rgba(37,99,235,.08), rgba(124,58,237,.08));
      border:1px solid rgba(219,228,242,.96);
      border-radius:24px;padding:22px
    }
    .stars{color:#f59e0b;font-size:20px;letter-spacing:2px}
    .score{font-size:54px;font-weight:900;line-height:1;color:#0f172a;margin:12px 0}
    .comparison-list{display:grid;gap:10px}
    .compare-item{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px}
    .check{width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;display:grid;place-items:center;flex:0 0 auto;font-size:13px;font-weight:800}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .avatar{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#dbeafe,#e9d5ff);display:grid;place-items:center;font-weight:800;color:#1d4ed8}
    .quote{color:var(--muted);line-height:1.75}
    .faq{display:grid;gap:10px}
    details{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 16px;
      box-shadow:0 8px 20px rgba(30,41,59,.04)
    }
    summary{
      cursor:pointer; list-style:none; padding:16px 0; font-weight:700; color:#0f172a;
    }
    summary::-webkit-details-marker{display:none}
    details p{margin:0 0 16px;color:var(--muted);line-height:1.75}
    .articles, .network, .links-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .article{
      padding:18px;border-radius:20px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line)
    }
    .article small{color:#1d4ed8;font-weight:700}
    .article h3{margin:8px 0 8px}
    .contact-grid{display:grid;grid-template-columns:1fr .9fr;gap:16px}
    form{
      background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px
    }
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;font-weight:700;color:#24324a}
    input,select,textarea{
      width:100%; border:1px solid #ced8ea; background:#fbfdff; color:#0f172a;
      border-radius:14px; padding:13px 14px; font:inherit; outline:none;
    }
    input:focus,select:focus,textarea:focus{border-color:#8ab4ff; box-shadow:0 0 0 4px rgba(37,99,235,.10)}
    textarea{min-height:120px; resize:vertical}
    .aside-box{
      background:linear-gradient(180deg,#fff,#f7fbff);
      border:1px solid var(--line);border-radius:24px;padding:20px
    }
    .footer{
      margin-top:24px;
      background:#0f172a;
      color:#dbeafe;
      padding:26px 0;
    }
    .footer a{color:#e0f2fe}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:16px}
    .footer h3,.footer h4{margin:0 0 12px;color:#fff}
    .footer p,.footer li{color:#cbd5e1;line-height:1.75}
    .footer ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
    .footer-bottom{
      margin-top:18px;padding-top:16px;border-top:1px solid rgba(148,163,184,.24);
      display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#cbd5e1;font-size:13px
    }
    .float-tools{
      position:fixed; right:16px; bottom:16px; z-index:60;
      display:flex;flex-direction:column;gap:10px;
    }
    .float-btn{
      width:52px;height:52px;border-radius:18px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;
      box-shadow:0 16px 30px rgba(37,99,235,.24); border:none; cursor:pointer;
    }
    .float-card{
      position:fixed; right:16px; bottom:82px; z-index:59; width:min(320px, calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);
      padding:14px; display:none;
    }
    .float-card.open{display:block}
    .float-card .qrcode{display:flex;gap:12px;align-items:center}
    .float-card img{width:86px;height:86px;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
    .backtop{background:#fff;color:#334155;border:1px solid var(--line)}
    .mobile-only{display:none}
    .anchor-pad{scroll-margin-top:92px}
    .muted{color:var(--muted)}
    .service-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px}
    @media (max-width: 1024px){
      .hero-grid,.rating,.contact-grid,.footer-grid,.two-col,.grid-4,.reviews,.articles,.network,.links-grid{grid-template-columns:1fr}
      .navlinks{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .mobile-only{display:block}
      .hero-points{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
    }
    .mobile-panel{
      display:none; padding:0 0 14px;
    }
    .mobile-panel.open{display:block}
    .mobile-panel .navlinks{
      display:flex; align-items:flex-start; justify-content:flex-start; flex-direction:column; gap:8px;
      padding:10px 0 0;
    }