:root{
      --bg:#f7f5ef;
      --bg2:#eef3f8;
      --card:#ffffff;
      --ink:#1f2937;
      --muted:#5b6472;
      --line:#d9e1ea;
      --brand:#2b67f6;
      --brand2:#7c4dff;
      --accent:#ff8f4d;
      --accent2:#15b8a6;
      --shadow:0 16px 40px rgba(25,40,72,.10);
      --shadow2:0 10px 24px rgba(33,48,88,.08);
      --radius:20px;
      --radius2:14px;
      --container:1160px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:
      radial-gradient(circle at top left, rgba(43,103,246,.10), transparent 28%),
      radial-gradient(circle at top right, rgba(124,77,255,.10), transparent 24%),
      linear-gradient(180deg, #fbfaf7 0%, #f4f7fb 36%, #f7f5ef 100%)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:40;background:rgba(251,250,247,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(217,225,234,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:18px;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:10px;background:#fff;padding:4px;box-shadow:var(--shadow2)}
    .brand .txt{display:flex;flex-direction:column;min-width:0}
    .brand strong{font-size:18px;line-height:1.1}
    .brand span{font-size:12px;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:14px}
    .nav-links a{font-size:14px;color:#334155;padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover{background:#eef3ff;color:var(--brand)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.22s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(43,103,246,.25)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(43,103,246,.28)}
    .btn-soft{background:#eef4ff;color:#2040a8}
    .btn-soft:hover{transform:translateY(-1px);background:#e4edff}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px}
    .menu-btn span{display:block;width:18px;height:2px;background:#243041;margin:4px auto;border-radius:2px}
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.22fr .78fr;gap:22px;align-items:stretch}
    .hero-main{position:relative;overflow:hidden;background:
      linear-gradient(135deg, rgba(43,103,246,.10), rgba(255,255,255,.94) 38%, rgba(124,77,255,.08));
      border:1px solid rgba(217,225,234,.75);border-radius:28px;box-shadow:var(--shadow);padding:34px}
    .hero-main::before,.hero-main::after{content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none}
    .hero-main::before{width:220px;height:220px;background:radial-gradient(circle, rgba(255,143,77,.24), transparent 68%);top:-40px;right:-36px}
    .hero-main::after{width:180px;height:180px;background:radial-gradient(circle, rgba(21,184,166,.18), transparent 66%);bottom:-66px;left:-40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#edf4ff;color:#2344aa;font-size:13px;font-weight:700}
    h1{margin:18px 0 12px;font-size:clamp(32px,5vw,54px);line-height:1.08;letter-spacing:-.03em}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
    .point{background:rgba(255,255,255,.76);border:1px solid rgba(217,225,234,.85);border-radius:18px;padding:14px}
    .point b{display:block;font-size:18px;margin-bottom:4px}
    .point span{font-size:13px;color:var(--muted);line-height:1.5}
    .hero-side{display:grid;gap:16px}
    .side-card,.card{background:rgba(255,255,255,.92);border:1px solid rgba(217,225,234,.9);border-radius:22px;box-shadow:var(--shadow2)}
    .side-card{padding:20px}
    .stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid #e6edf6}
    .stat strong{display:block;font-size:24px;color:#17316e}
    .stat span{display:block;font-size:13px;color:var(--muted);margin-top:6px;line-height:1.45}
    .quick-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
    .tag{padding:8px 12px;border-radius:999px;background:#f3f6fb;border:1px solid #e2e8f2;color:#445062;font-size:13px}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,34px);line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:60ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card{padding:20px}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg, rgba(43,103,246,.12), rgba(124,77,255,.12));color:var(--brand);font-weight:900;margin-bottom:12px}
    .list{padding-left:18px;margin:12px 0 0}
    .banner-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .media{border-radius:24px;overflow:hidden;border:1px solid rgba(217,225,234,.85);background:#fff;box-shadow:var(--shadow2)}
    .media img{width:100%;height:auto}
    .process{counter-reset:step}
    .step{position:relative;padding:20px 18px 18px 20px}
    .step::before{counter-increment:step;content:counter(step);width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid rgba(217,225,234,.9);background:#fff;box-shadow:var(--shadow2)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:15px 14px;border-bottom:1px solid #e8edf4;text-align:left;vertical-align:top}
    th{background:#f6f8fc;font-size:14px;color:#334155}
    td{color:var(--muted);line-height:1.65}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:#eef8f6;color:#116a5c;font-size:12px;font-weight:700}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid rgba(217,225,234,.9);border-radius:18px;box-shadow:var(--shadow2);overflow:hidden}
    summary{list-style:none;cursor:pointer;padding:18px 18px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:14px}
    summary::-webkit-details-marker{display:none}
    details p{padding:0 18px 18px;margin:0;color:var(--muted);line-height:1.75}
    .reviews .card{display:flex;flex-direction:column;gap:12px}
    .avatar{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#edf4ff,#f8efff);font-weight:800;color:#294b9b}
    .review-top{display:flex;align-items:center;gap:12px}
    .review-top b{display:block}
    .review-top span{display:block;font-size:13px;color:var(--muted);margin-top:3px}
    .stars{color:#f59e0b;letter-spacing:1px}
    .articles{display:grid;gap:12px}
    .article{display:flex;justify-content:space-between;gap:16px;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid rgba(217,225,234,.85);box-shadow:var(--shadow2)}
    .article strong{display:block;margin-bottom:6px}
    .article span{color:var(--muted);line-height:1.6}
    .article a{color:var(--brand);font-weight:700;white-space:nowrap}
    .form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700;color:#334155}
    input,select,textarea{width:100%;border:1px solid #cfd8e5;border-radius:14px;background:#fff;padding:13px 14px;font:inherit;color:var(--ink);outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:rgba(43,103,246,.5);box-shadow:0 0 0 4px rgba(43,103,246,.10)}
    textarea{min-height:120px;resize:vertical}
    .footer-top{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    footer{margin-top:22px;background:#0f172a;color:#dbe5f6}
    footer .container{padding:26px 0}
    footer a{color:#fff}
    .foot-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .foot-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:18px}
    .foot-card h3{margin-top:0;color:#fff}
    .foot-card p,.foot-card li{color:#c7d2e5}
    .foot-card ul{margin:0;padding-left:18px}
    .copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:18px;padding-top:16px;color:#c7d2e5;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
    .floating{position:fixed;right:16px;bottom:16px;z-index:50;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(--brand2));color:#fff;box-shadow:0 16px 30px rgba(43,103,246,.26)}
    .float-btn.secondary{background:#fff;color:#243041;border:1px solid var(--line)}
    .kefu{position:fixed;left:16px;bottom:16px;z-index:50;display:grid;gap:10px;align-items:end}
    .kefu-box{width:170px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow2);padding:12px}
    .kefu-box img{border-radius:12px}
    .scrolltop{position:fixed;right:16px;bottom:78px;opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s}
    .scrolltop.show{opacity:1;pointer-events:auto;transform:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.banner-row,.footer-top,.foot-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .nav.open .nav-links{display:flex;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      .nav.open .nav-cta{display:flex}
      .nav{position:relative}
      .form{grid-template-columns:1fr}
      .kefu-box{width:150px}
    }