:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel2:#f1f6ff;
      --text:#1f2937;
      --muted:#5b667a;
      --line:#dbe4f1;
      --brand:#285cf6;
      --brand2:#18c3ff;
      --accent:#7c4dff;
      --soft:#eef4ff;
      --shadow:0 18px 50px rgba(26, 47, 94, .10);
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 10%, rgba(40,92,246,.14), transparent 25%),
        radial-gradient(circle at 90% 0%, rgba(124,77,255,.14), transparent 22%),
        linear-gradient(180deg, #f9fbff 0%, #f5f8fd 42%, #f7f9ff 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:60;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(248,250,255,.86);
      border-bottom:1px solid rgba(219,228,241,.8);
    }
    header .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 22px rgba(40,92,246,.12)}
    .brand strong{display:block; font-size:1rem; letter-spacing:.4px}
    .brand span{display:block; font-size:.82rem; color:var(--muted)}
    .navlinks{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .navlinks a{font-size:.95rem; color:#344155; padding:8px 10px; border-radius:10px}
    .navlinks a:hover,.navlinks a:focus{background:var(--soft); color:var(--brand)}
    .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:12px 18px;
      font-weight:700; transition:.25s ease; cursor:pointer;
      box-shadow:0 10px 24px rgba(40,92,246,.14);
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--accent)); color:#fff}
    .btn-secondary{background:#fff; color:var(--brand); border-color:var(--line)}
    .btn:hover{transform:translateY(-2px); box-shadow:0 16px 30px rgba(40,92,246,.2)}
    .menu-btn{display:none; width:44px; height:44px; border-radius:12px; border:1px solid var(--line); background:#fff}
    .menu-btn span{display:block; width:18px; height:2px; background:#233044; margin:4px auto; border-radius:2px}
    .hero{
      position:relative; overflow:hidden;
      padding:32px 0 18px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.18fr .82fr; gap:24px; align-items:stretch;
    }
    .hero-card{
      background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(247,250,255,.92));
      border:1px solid rgba(219,228,241,.9);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:34px;
      position:relative;
    }
    .hero-card::before,.hero-card::after{
      content:""; position:absolute; border-radius:999px; pointer-events:none;
      background:linear-gradient(135deg, rgba(40,92,246,.12), rgba(24,195,255,.08));
      filter:blur(2px);
    }
    .hero-card::before{width:170px; height:170px; right:-50px; top:-46px}
    .hero-card::after{width:120px; height:120px; right:120px; bottom:-36px}
    .kicker{display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px; background:rgba(40,92,246,.08); color:var(--brand); font-weight:700; font-size:.88rem}
    h1{margin:14px 0 14px; font-size:clamp(2rem, 4vw, 3.6rem); line-height:1.08; letter-spacing:-.02em}
    .lead{margin:0; color:var(--muted); line-height:1.85; font-size:1.02rem; max-width:58ch}
    .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}
    .point{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:16px;
    }
    .point b{display:block; font-size:1.08rem; margin-bottom:6px}
    .point span{color:var(--muted); font-size:.92rem; line-height:1.6}
    .hero-side{
      display:grid; gap:16px;
    }
    .info-panel{
      background:linear-gradient(180deg,#0f172a,#15274e 55%, #1c3f8f);
      color:#eaf2ff;
      border-radius:28px; padding:26px; box-shadow:var(--shadow); position:relative; overflow:hidden;
    }
    .info-panel::before{
      content:""; position:absolute; inset:auto -30px -50px auto; width:200px; height:200px; background:radial-gradient(circle, rgba(24,195,255,.35), transparent 60%);
    }
    .info-panel h2{margin:0 0 10px; font-size:1.2rem}
    .info-panel p{margin:0; color:#c6d6f7; line-height:1.7}
    .mini-metrics{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .mini{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:18px; box-shadow:0 10px 30px rgba(26,47,94,.06)
    }
    .mini strong{display:block; font-size:1.35rem; margin-bottom:6px}
    .mini span{color:var(--muted); font-size:.92rem; line-height:1.5}
    section{padding:28px 0}
    .section-head{display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:18px}
    .section-head h2{margin:0; font-size:1.7rem}
    .section-head p{margin:0; color:var(--muted); line-height:1.7; max-width:62ch}
    .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:22px;
      padding:22px; box-shadow:0 10px 30px rgba(26,47,94,.06);
      transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .card:hover{transform:translateY(-4px); box-shadow:0 18px 40px rgba(40,92,246,.12); border-color:#bfd0f5}
    .card h3{margin:0 0 10px; font-size:1.08rem}
    .card p{margin:0; color:var(--muted); line-height:1.76}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{
      padding:10px 14px; border-radius:999px; border:1px solid rgba(40,92,246,.16);
      background:linear-gradient(180deg,#fff, #f5f8ff); color:#2c3b59; font-size:.92rem
    }
    .timeline{display:grid; gap:14px}
    .step{
      display:grid; grid-template-columns:68px 1fr; gap:14px; align-items:start;
      padding:18px; border-radius:20px; background:#fff; border:1px solid var(--line);
    }
    .step-num{
      width:52px; height:52px; border-radius:16px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; font-weight:800;
      box-shadow:0 10px 24px rgba(40,92,246,.2);
    }
    .step h3{margin:4px 0 8px}
    .compare{
      overflow:auto; background:#fff; border:1px solid var(--line); border-radius:22px; box-shadow:0 10px 30px rgba(26,47,94,.06)
    }
    table{width:100%; border-collapse:collapse; min-width:860px}
    th,td{padding:16px; border-bottom:1px solid #edf1f8; text-align:left; vertical-align:top}
    th{background:#f7faff; color:#24324a; font-size:.95rem}
    td{color:#415066}
    .score{
      display:inline-flex; align-items:center; gap:8px; font-weight:800; color:#173baf;
      background:rgba(40,92,246,.08); padding:8px 12px; border-radius:999px
    }
    .stars{color:#f59e0b; letter-spacing:2px}
    .pricing{
      display:grid; grid-template-columns:repeat(3,1fr); gap:16px;
    }
    .price{
      position:relative; background:linear-gradient(180deg,#fff, #f8fbff); border:1px solid var(--line); border-radius:22px; padding:22px;
    }
    .price strong{display:block; font-size:1.8rem; margin:10px 0 8px}
    .price ul{padding-left:18px; margin:14px 0 0; color:var(--muted); line-height:1.8}
    .testimonial{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .quote{background:#fff; border:1px solid var(--line); border-radius:22px; padding:22px; position:relative}
    .quote p{margin:0 0 16px; color:#3d4b60; line-height:1.8}
    .quote b{display:block}
    .quote span{color:var(--muted); font-size:.9rem}
    .news-list{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .news-item{display:flex; gap:14px; align-items:flex-start}
    .news-dot{width:12px; height:12px; border-radius:50%; margin-top:8px; background:linear-gradient(135deg,var(--brand),var(--accent))}
    .faq{display:grid; gap:12px}
    details{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:16px 18px;
      box-shadow:0 8px 24px rgba(26,47,94,.05)
    }
    summary{cursor:pointer; list-style:none; font-weight:700; color:#24324a}
    summary::-webkit-details-marker{display:none}
    details p{margin:12px 0 0; color:var(--muted); line-height:1.8}
    .contact-wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:16px; align-items:start}
    form{
      background:#fff; border:1px solid var(--line); border-radius:24px; padding:22px; box-shadow:0 10px 30px rgba(26,47,94,.06)
    }
    .field-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    label{display:block; font-size:.92rem; font-weight:700; margin-bottom:8px; color:#334155}
    input,select,textarea{
      width:100%; border:1px solid #cfd9ea; background:#fbfcff; color:var(--text);
      border-radius:14px; padding:13px 14px; font:inherit; outline:none; transition:.2s ease;
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--brand); box-shadow:0 0 0 4px rgba(40,92,246,.12)}
    .form-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:14px}
    .aside-box{
      background:linear-gradient(180deg,#ffffff,#f5f9ff); border:1px solid var(--line); border-radius:24px; padding:22px;
      box-shadow:0 10px 30px rgba(26,47,94,.06)
    }
    .contact-grid{display:grid; gap:14px}
    .qrcode{display:grid; grid-template-columns:120px 1fr; gap:14px; align-items:center}
    .qrcode img{width:120px; height:120px; object-fit:cover; border-radius:18px; border:1px solid var(--line); background:#fff}
    footer{
      margin-top:12px;
      background:#0f172a; color:#d9e5ff; padding:26px 0 30px;
    }
    footer a{color:#b7cdfc}
    .footer-grid{display:grid; grid-template-columns:1.3fr .7fr 1fr; gap:18px}
    .footer-grid p,.footer-grid li{color:#c3d0e9; line-height:1.8}
    .footer-grid ul{margin:0; padding-left:18px}
    .copyright{margin-top:18px; padding-top:16px; border-top:1px solid rgba(255,255,255,.12); color:#aebedd; font-size:.92rem}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:70; display:grid; gap:10px
    }
    .float-btn{
      width:52px; height:52px; border-radius:16px; display:grid; place-items:center; background:linear-gradient(135deg,var(--brand),var(--accent));
      color:#fff; box-shadow:0 14px 28px rgba(40,92,246,.24); border:none; cursor:pointer
    }
    .float-link{
      width:52px; height:52px; border-radius:16px; display:grid; place-items:center; background:#fff; border:1px solid var(--line);
      box-shadow:0 12px 24px rgba(26,47,94,.08)
    }
    .scroll-top{opacity:0; pointer-events:none; transform:translateY(8px); transition:.2s ease}
    .scroll-top.show{opacity:1; pointer-events:auto; transform:none}
    .reveal{opacity:0; transform:translateY(18px); transition:.7s ease}
    .reveal.in{opacity:1; transform:none}
    .scroll-x{overflow:auto}
    .note{font-size:.92rem; color:var(--muted); line-height:1.7}
    .subtle{color:var(--muted)}
    .banner-imgs{display:grid; grid-template-columns:1fr 1fr; gap:14px}
    .banner-imgs img{border-radius:20px; border:1px solid var(--line); box-shadow:0 10px 24px rgba(26,47,94,.06)}
    .logo-row{display:flex; align-items:center; gap:12px; flex-wrap:wrap}
    .badge{display:inline-flex; align-items:center; padding:8px 12px; border-radius:999px; background:#edf4ff; color:#285cf6; font-weight:700}
    .mobile-nav{display:none}
    @media (max-width: 980px){
      .hero-grid,.contact-wrap,.footer-grid,.grid-4,.grid-3,.pricing,.testimonial,.news-list,.grid-2,.banner-imgs{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .navlinks,.nav-actions{display:none}
      .menu-btn{display:inline-grid; place-items:center}
      .mobile-nav{
        display:none; padding:0 0 14px;
      }
      .mobile-nav.open{display:block}
      .mobile-nav a{
        display:block; padding:12px 14px; border-radius:14px; background:#fff; border:1px solid var(--line); margin-top:10px;
      }
      .section-head{flex-direction:column; align-items:flex-start}
      .field-grid{grid-template-columns:1fr}
      .mini-metrics{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .hero-card,.card,form,.aside-box,.info-panel{padding:20px}
      h1{font-size:2rem}
      .hero{padding-top:20px}
      .mini-metrics{grid-template-columns:1fr}
      .qrcode{grid-template-columns:1fr}
      .qrcode img{width:100%; height:auto; aspect-ratio:1/1}
    }