:root{
      --bg:#f6f7fb;
      --bg2:#ffffff;
      --card:#ffffff;
      --text:#182230;
      --muted:#5b677a;
      --line:#e7eaf1;
      --accent:#4c63ff;
      --accent2:#00b8a9;
      --accent3:#ff8a5b;
      --shadow:0 18px 45px rgba(24,34,48,.08);
      --radius:20px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:
      radial-gradient(circle at top left, rgba(76,99,255,.08), transparent 28%),
      radial-gradient(circle at 85% 8%, rgba(0,184,169,.08), transparent 24%),
      linear-gradient(180deg,#fbfcff 0%, #f6f7fb 100%);}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    header{position:sticky;top:0;z-index:30;background:rgba(246,247,251,.84);backdrop-filter:blur(14px);border-bottom:1px solid rgba(231,234,241,.75)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:74px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800}
    .brand .logo{width:42px;height:42px;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);background:#fff}
    .brand strong{font-size:18px;letter-spacing:.2px}
    .brand span{display:block;font-size:12px;color:var(--muted);font-weight:600}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .nav-links a{font-size:14px;color:#334155;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover{background:#eef2ff;color:var(--accent)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.25s;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--accent),#6d7dff);color:#fff;box-shadow:0 12px 24px rgba(76,99,255,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(76,99,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:#223046}
    .btn-ghost:hover{border-color:#cfd7ff;transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    .hero{padding:48px 0 28px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}
    .hero-copy,.panel{background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(255,255,255,.86));border:1px solid rgba(231,234,241,.9);border-radius:28px;box-shadow:var(--shadow)}
    .hero-copy{padding:34px;position:relative;overflow:hidden}
    .hero-copy:before,.hero-copy:after{content:"";position:absolute;border-radius:999px;filter:blur(4px);opacity:.7}
    .hero-copy:before{width:180px;height:180px;background:rgba(76,99,255,.12);right:-40px;top:-40px}
    .hero-copy:after{width:140px;height:140px;background:rgba(0,184,169,.12);right:70px;bottom:-60px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef7ff;color:#2756d8;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,56px);line-height:1.08}
    .lead{margin:0 0 22px;color:var(--muted);font-size:16px;line-height:1.85;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 24px}
    .hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .stat{padding:16px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .stat strong{display:block;font-size:22px;margin-bottom:6px}
    .stat span{font-size:13px;color:var(--muted);line-height:1.45}
    .hero-side{display:grid;gap:16px}
    .panel{padding:22px}
    .panel h2,.section h2{margin:0 0 12px;font-size:26px}
    .panel p,.section p.desc{margin:0;color:var(--muted);line-height:1.8}
    .pill-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
    .pill{padding:9px 12px;border-radius:999px;background:#f3f6ff;border:1px solid #e4eaff;font-size:13px;color:#3550a8}
    .section{padding:18px 0 0}
    .section-card{background:rgba(255,255,255,.9);border:1px solid rgba(231,234,241,.95);border-radius:28px;padding:28px;box-shadow:var(--shadow)}
    .grid-3,.grid-2{display:grid;gap:16px}
    .grid-3{grid-template-columns:repeat(3,1fr)}
    .grid-2{grid-template-columns:repeat(2,1fr)}
    .card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;transition:.25s;box-shadow:0 8px 20px rgba(24,34,48,.04)}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 30px rgba(24,34,48,.09)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.8}
    .icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#eef2ff,#f7fbff);color:var(--accent);font-weight:800;margin-bottom:14px}
    .timeline{display:grid;gap:14px}
    .step{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start;padding:18px;border-radius:20px;border:1px solid var(--line);background:#fff}
    .step b{display:inline-flex;width:54px;height:54px;border-radius:16px;align-items:center;justify-content:center;background:linear-gradient(135deg,#4c63ff,#6dd6ff);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:780px}
    th,td{padding:16px 14px;border-bottom:1px solid #edf0f6;text-align:left;vertical-align:top}
    th{background:#f8faff;font-size:14px}
    td{color:#344054;line-height:1.7}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0 18px}
    .stars{color:#ffb400;font-size:22px;letter-spacing:2px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 18px 14px}
    details+details{margin-top:12px}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";float:right;color:var(--accent)}
    details[open] summary:after{content:"－"}
    .faq p{margin:12px 0 0;color:var(--muted);line-height:1.8}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#eef2ff,#dff7f6)}
    .review-top{display:flex;align-items:center;gap:12px}
    .review strong{display:block}
    .review small{color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 12px;border-radius:999px;background:#f6f8ff;border:1px solid #e4e9ff;font-size:13px;color:#3a4f9d}
    .articles li{padding:14px 0;border-bottom:1px dashed #e5e8f0;display:flex;justify-content:space-between;gap:16px}
    .articles li:last-child{border-bottom:0}
    .articles a{color:#20304b;font-weight:600}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #dce3ef;background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:126px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#9fb0ff;box-shadow:0 0 0 4px rgba(76,99,255,.08)}
    .footer{margin-top:18px;padding:24px 0 28px;color:#304055}
    .footer-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer-box{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px}
    .footer a{color:#2644b9}
    .float-actions{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:40}
    .float-btn{width:50px;height:50px;border-radius:16px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);font-weight:800;color:var(--accent)}
    .wechat-card{display:flex;gap:16px;align-items:center}
    .wechat-card img{width:120px;height:120px;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}
    .scroll-in{opacity:0;transform:translateY(18px);transition:.6s ease}
    .scroll-in.visible{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 1080px){
      .hero-grid,.footer-inner,.grid-3{grid-template-columns:1fr}
      .grid-2{grid-template-columns:1fr}
      .hero-stats{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .nav-links,.nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-only{display:block}
      .mobile-nav{display:none;padding:0 0 16px}
      .mobile-nav.open{display:block}
      .mobile-nav a{display:block;padding:12px 0;border-top:1px solid #edf0f6;color:#223046}
      .hero{padding-top:26px}
      .hero-copy{padding:24px}
      .hero-stats{grid-template-columns:1fr 1fr}
      .form-grid{grid-template-columns:1fr}
      .wechat-card{flex-direction:column;align-items:flex-start}
    }