:root{
      --bg:#f6f7fb;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#132033;
      --muted:#5a667a;
      --line:#d9e1ee;
      --brand:#2156d1;
      --brand2:#7b61ff;
      --accent:#12b8a6;
      --warm:#ffb547;
      --shadow:0 18px 50px rgba(17,34,68,.08);
      --radius:20px;
      --radius2:28px;
      --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;background:linear-gradient(180deg,var(--bg) 0%,#fbfcff 48%,#f8fafc 100%);color:var(--text);line-height:1.65}
    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;background:rgba(246,247,251,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(217,225,238,.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;background:#fff;border:1px solid var(--line);border-radius:12px;padding:5px;box-shadow:0 8px 24px rgba(33,86,209,.08)}
    .brand strong{display:block;font-size:16px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#334155;padding:8px 0;position:relative}
    .nav-links a::after{content:"";position:absolute;left:0;bottom:1px;width:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:.25s}
    .nav-links a:hover::after{width:100%}
    .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;cursor:pointer;transition:.25s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 30px rgba(33,86,209,.22)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(17,34,68,.12)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{position:relative;overflow:hidden;padding:44px 0 26px}
    .hero::before,.hero::after{content:"";position:absolute;inset:auto;border-radius:50%;filter:blur(20px);pointer-events:none}
    .hero::before{width:260px;height:260px;right:-90px;top:30px;background:radial-gradient(circle,rgba(123,97,255,.22),transparent 70%)}
    .hero::after{width:220px;height:220px;left:-90px;bottom:-30px;background:radial-gradient(circle,rgba(18,184,166,.16),transparent 70%)}
    .hero-grid{display:grid;grid-template-columns:1.22fr .78fr;gap:22px;align-items:stretch}
    .hero-panel{background:linear-gradient(135deg,#ffffff 0%,#f8fbff 55%,#eef4ff 100%);border:1px solid rgba(217,225,238,.95);border-radius:var(--radius2);padding:34px;box-shadow:var(--shadow)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(33,86,209,.08);color:var(--brand);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,54px);line-height:1.1;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
    .mini{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}
    .mini b{display:block;font-size:18px}
    .mini span{font-size:12px;color:var(--muted)}
    .hero-side{display:grid;gap:16px}
    .stat-card,.glass-card{background:rgba(255,255,255,.9);border:1px solid rgba(217,225,238,.96);border-radius:24px;padding:22px;box-shadow:var(--shadow)}
    .stat-grid{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 var(--line)}
    .stat strong{display:block;font-size:24px;line-height:1}
    .stat span{display:block;font-size:12px;color:var(--muted);margin-top:6px}
    .trust-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .tag{padding:8px 12px;border-radius:999px;background:#f4f7ff;border:1px solid #dfe7fb;color:#27406d;font-size:13px}
    section{padding:18px 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(22px,3vw,34px);line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .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}
    .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 10px 28px rgba(17,34,68,.05);transition:.25s}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(17,34,68,.09)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;background:linear-gradient(135deg,rgba(33,86,209,.12),rgba(123,97,255,.12));color:var(--brand);font-weight:800}
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{position:relative;padding:18px 18px 18px 20px;border-left:4px solid transparent;background:linear-gradient(180deg,#fff,#f7f9ff);border-radius:18px;border:1px solid var(--line)}
    .step::before{content:attr(data-step);display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-weight:800;margin-bottom:10px}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;border-bottom:1px solid #edf1f7;text-align:left;vertical-align:top}
    th{background:#f6f8fe;color:#24324a;font-size:14px}
    td{font-size:14px;color:#334155}
    .rating{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .rating-box{padding:22px;border-radius:24px;background:linear-gradient(135deg,#ffffff,#f3f7ff);border:1px solid var(--line);box-shadow:var(--shadow)}
    .stars{color:#ff9f1c;font-size:20px;letter-spacing:2px}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:7px 11px;border-radius:999px;background:rgba(18,184,166,.1);color:#0f766e;font-size:12px;font-weight:700}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud .tag{background:#fff}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .quote{position:relative}
    .quote p{margin:0 0 14px}
    .quote .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--muted);font-size:13px}
    .case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .case{display:grid;grid-template-columns:140px 1fr;gap:16px;align-items:start}
    .case .thumb{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff}
    .case .thumb img{width:100%;height:auto}
    .article-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article{padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .article .meta{font-size:12px;color:var(--muted);margin-bottom:10px}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 20px rgba(17,34,68,.04)}
    summary{cursor:pointer;list-style:none;padding:16px 18px;font-weight:700;color:#22324b}
    summary::-webkit-details-marker{display:none}
    details .answer{padding:0 18px 16px;color:var(--muted)}
    .contact-grid{display:grid;grid-template-columns:1fr .92fr;gap:16px;align-items:start}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    label{font-size:14px;font-weight:700;color:#22324b}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(33,86,209,.55);box-shadow:0 0 0 4px rgba(33,86,209,.08)}
    .contact-side{display:grid;gap:16px}
    .qrcode{display:flex;align-items:center;gap:16px}
    .qrcode img{width:120px;height:120px;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}
    .footer{margin-top:18px;background:#f1f5fb;border-top:1px solid var(--line);color:#22324b}
    .footer a{color:#1d4ed8}
    .footer-inner{padding:26px 0 28px;display:grid;gap:18px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px}
    .footer small{color:#506075}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 16px 30px rgba(33,86,209,.25)}
    .backtop{opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s}
    .backtop.show{opacity:1;visibility:visible;transform:none}
    .floating-customer{position:fixed;left:16px;bottom:16px;z-index:60}
    .customer-card{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);padding:10px 12px;border-radius:999px;box-shadow:var(--shadow)}
    .customer-card span{font-size:13px;color:#22324b;font-weight:700}
    .fade-up{opacity:0;transform:translateY(18px);transition:.6s ease}
    .fade-up.in{opacity:1;transform:none}
    .subtle{color:var(--muted)}
    .link-pill{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .anchor-row{display:flex;flex-wrap:wrap;gap:10px}
    @media (max-width: 1024px){
      .hero-grid,.contact-grid,.rating,.footer-grid,.case-grid{grid-template-columns:1fr}
      .grid-4,.grid-3,.reviews,.article-list,.workflow{grid-template-columns:repeat(2,minmax(0,1fr))}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{display:flex;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow)}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .hero-panel{padding:24px}
      .grid-4,.grid-3,.reviews,.article-list,.workflow,.hero-points{grid-template-columns:1fr}
      .case{grid-template-columns:1fr}
      h1{font-size:clamp(28px,10vw,42px)}
      .section-head{align-items:flex-start;flex-direction:column}
      .nav-cta .btn-ghost{display:none}
      .btn{padding:11px 16px}
    }