:root{
      --bg:#f6f8fd;
      --bg2:#eef3ff;
      --card:#ffffff;
      --ink:#122033;
      --muted:#5b6b82;
      --line:#d9e2f1;
      --brand:#5c6cff;
      --brand2:#18c9c0;
      --brand3:#a855f7;
      --shadow:0 18px 50px rgba(37, 58, 90, .10);
      --shadow2:0 12px 30px rgba(92,108,255,.14);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 10% 10%, rgba(88, 127, 255, .16), transparent 25%),
        radial-gradient(circle at 88% 14%, rgba(24, 201, 192, .16), transparent 22%),
        linear-gradient(180deg, #f8fbff 0%, #f6f8fd 34%, #f7f9ff 100%);
      overflow-x:hidden;
    }
    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:50;backdrop-filter:blur(18px);background:rgba(246,248,253,.84);border-bottom:1px solid rgba(217,226,241,.75)}
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:74px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 10px 18px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:1rem;line-height:1.1}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;gap:8px;justify-content:flex-end}
    .nav-links a{
      padding:10px 12px;border-radius:999px;color:#24344b;font-size:.92rem;
      transition:.25s ease;background:transparent;border:1px solid transparent;
    }
    .nav-links a:hover,.nav-links a:focus-visible{background:#fff;border-color:#dfe7f6;box-shadow:0 10px 24px rgba(92,108,255,.10)}
    .nav-actions{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;cursor:pointer;transition:.25s ease;line-height:1;
      box-shadow:none;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand3));color:#fff;box-shadow:var(--shadow2)}
    .btn-primary:hover{transform:translateY(-1px);filter:saturate(1.05)}
    .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px;cursor:pointer}
    main{display:block}
    section{padding:66px 0}
    .hero{
      padding:34px 0 62px;
      position:relative;
      overflow:hidden;
    }
    .hero::before,.hero::after{
      content:"";position:absolute;border-radius:999px;filter:blur(8px);pointer-events:none;
    }
    .hero::before{width:280px;height:280px;right:-90px;top:-30px;background:radial-gradient(circle, rgba(92,108,255,.20), transparent 66%)}
    .hero::after{width:240px;height:240px;left:-80px;bottom:0;background:radial-gradient(circle, rgba(24,201,192,.18), transparent 66%)}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.info-card,.review,.faq-item,.price-box,.timeline-item,.case,.stat,.article,.compare,.form-wrap,.network-item{
      background:rgba(255,255,255,.88);border:1px solid rgba(217,226,241,.9);border-radius:var(--radius);box-shadow:var(--shadow);
    }
    .hero-copy{padding:34px;position:relative;overflow:hidden}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(92,108,255,.10);color:#3949d6;font-weight:700;font-size:.9rem}
    h1{margin:18px 0 14px;font-size:clamp(2rem, 5vw, 3.8rem);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:1.04rem;line-height:1.8;max-width:58ch}
    .hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:24px 0}
    .hero-point{padding:14px 15px;border-radius:16px;background:linear-gradient(180deg,#fbfcff,#f3f7ff);border:1px solid #e4ebf8}
    .hero-point strong{display:block;font-size:1rem;margin-bottom:4px}
    .hero-point span{color:var(--muted);font-size:.92rem;line-height:1.6}
    .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .chip{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #e3e9f5;color:#42526a;font-size:.88rem}
    .hero-panel{padding:22px;display:flex;flex-direction:column;gap:16px}
    .panel-top{display:flex;align-items:center;justify-content:space-between;gap:14px}
    .panel-top h2,.section-head h2{margin:0;font-size:1.5rem}
    .panel-top p{margin:6px 0 0;color:var(--muted);line-height:1.7}
    .logo-box{display:flex;align-items:center;gap:12px;padding:14px;border-radius:18px;background:linear-gradient(135deg,rgba(92,108,255,.12),rgba(24,201,192,.10));border:1px solid rgba(92,108,255,.12)}
    .logo-box img{width:56px;height:56px;object-fit:contain;background:#fff;border-radius:16px;padding:8px}
    .stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .stat{padding:20px 18px}
    .stat strong{display:block;font-size:1.4rem}
    .stat span{display:block;margin-top:6px;color:var(--muted);font-size:.92rem;line-height:1.5}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:20px}
    .section-head p{margin:0;color:var(--muted);max-width:70ch;line-height:1.75}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card,.info-card,.review,.faq-item,.price-box,.timeline-item,.case,.article,.compare,.form-wrap,.network-item{padding:22px}
    .card h3,.info-card h3,.review h3,.price-box h3,.case h3,.article h3,.network-item h3{margin:0 0 10px;font-size:1.08rem}
    .card p,.info-card p,.review p,.price-box p,.case p,.article p,.network-item p{margin:0;color:var(--muted);line-height:1.75}
    .badge{display:inline-flex;padding:7px 11px;border-radius:999px;background:rgba(24,201,192,.10);color:#11726d;font-weight:700;font-size:.84rem;margin-bottom:12px}
    .bullets{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .bullets li{display:flex;gap:10px;align-items:flex-start;color:#2d3b50;line-height:1.65}
    .bullets li::before{content:"";width:10px;height:10px;border-radius:50%;margin-top:.5em;background:linear-gradient(135deg,var(--brand),var(--brand2));flex:none}
    .service-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .service-tags span{padding:9px 11px;border-radius:999px;background:#f4f7ff;border:1px solid #e4ebf8;color:#41506a;font-size:.88rem}
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:20px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7f9ff);border:1px solid #e3e9f5;position:relative}
    .step strong{display:flex;align-items:center;gap:10px;font-size:1rem}
    .step strong span{display:inline-flex;width:28px;height:28px;border-radius:8px;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--brand3));color:#fff;font-size:.9rem}
    .step p{margin:10px 0 0;color:var(--muted);line-height:1.7}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid #e1e8f4;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:16px 14px;border-bottom:1px solid #edf2f8;text-align:left;vertical-align:top}
    th{background:linear-gradient(180deg,#f8fbff,#eef4ff);font-size:.96rem}
    tr:hover td{background:#fbfdff}
    .score{display:inline-flex;align-items:center;gap:8px;font-weight:800;color:#22304a}
    .score b{color:#e05a00}
    .accordion{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;border:0;background:transparent;color:var(--ink);font-size:1rem;font-weight:700;
      text-align:left;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer
    }
    .faq-q span{display:inline-flex;width:28px;height:28px;border-radius:50%;background:#f0f4ff;align-items:center;justify-content:center;color:#33415e;flex:none}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.active .faq-a{max-height:180px;padding-bottom:18px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.8}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review .role{display:inline-flex;margin-bottom:12px;padding:7px 10px;border-radius:999px;background:#f3f7ff;color:#42526a;font-size:.85rem}
    .stars{color:#ff9a1f;letter-spacing:2px;margin-bottom:8px}
    .case-list,.article-list,.network-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .case .thumb{
      height:190px;border-radius:16px;background:linear-gradient(135deg,rgba(92,108,255,.14),rgba(24,201,192,.12));
      border:1px solid rgba(92,108,255,.10);display:flex;align-items:center;justify-content:center;margin-bottom:16px;overflow:hidden
    }
    .case .thumb img{width:100%;height:100%;object-fit:cover}
    .article .meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px;color:#6b778c;font-size:.88rem}
    .price-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
    .price-box{position:relative;overflow:hidden}
    .price-box.featured{border-color:rgba(92,108,255,.28);box-shadow:0 18px 44px rgba(92,108,255,.14)}
    .price{font-size:2rem;font-weight:900;margin:10px 0;color:#20304a}
    .price small{font-size:.92rem;color:var(--muted);font-weight:600}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:start}
    .timeline-item strong{display:block;font-size:1rem}
    .timeline-item span{display:block;color:#49607c;font-weight:700}
    .timeline-item p{margin:0;color:var(--muted);line-height:1.7}
    .tags-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tags-cloud a{padding:10px 12px;border-radius:999px;border:1px solid #dfe7f6;background:#fff;color:#3e4f69;font-size:.88rem;transition:.24s ease}
    .tags-cloud a:hover{transform:translateY(-1px);box-shadow:var(--shadow2)}
    .form-wrap form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:grid;gap:8px;font-weight:700;color:#33415e;font-size:.95rem}
    input,select,textarea{
      width:100%;border:1px solid #dbe4f2;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:var(--ink);outline:none;transition:.22s ease;
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8aa0ff;box-shadow:0 0 0 4px rgba(92,108,255,.10)}
    .form-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .helper{color:var(--muted);font-size:.9rem;line-height:1.7}
    footer{
      padding:30px 0 26px;
      background:#101828;color:#d5def0;border-top:1px solid rgba(255,255,255,.06)
    }
    footer a{color:#ffffff}
    footer .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px;align-items:start}
    footer .footer-col{display:grid;gap:10px}
    footer .footer-col h3{margin:0;font-size:1rem;color:#fff}
    footer .footer-col p,footer li{margin:0;color:#b8c4d8;line-height:1.8}
    footer ul{list-style:none;padding:0;display:grid;gap:8px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08)}
    .footer-bottom{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#a9b6c8;font-size:.92rem}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;border:1px solid rgba(217,226,241,.85);
      background:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);cursor:pointer
    }
    .float-btn strong{font-size:1.1rem;color:#35435a}
    .客服{
      position:fixed;left:16px;bottom:16px;z-index:60;display:flex;align-items:flex-end;gap:12px
    }
    .kefu-card{
      width:180px;padding:12px;border-radius:18px;background:#fff;border:1px solid #dbe4f2;box-shadow:var(--shadow);display:none
    }
    .kefu-card img{border-radius:12px}
    .kefu-btn{
      padding:12px 14px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800;box-shadow:var(--shadow2);cursor:pointer;border:0
    }
    .anchor{scroll-margin-top:92px}
    .divider{height:1px;background:linear-gradient(90deg,transparent,#dbe4f2,transparent);margin:18px 0}
    .image-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .image-strip img{border-radius:16px;border:1px solid #e1e8f4;background:#fff;aspect-ratio:4/3;object-fit:cover}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.reviews,.case-list,.article-list,.network-list,.price-grid,.workflow,.stats,footer .footer-grid{grid-template-columns:1fr 1fr}
      .hero-grid{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav{flex-wrap:wrap;padding:12px 0}
      .menu-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;order:3;justify-content:flex-start;padding:8px 0 6px}
      .nav-links.open{display:flex}
      .nav-actions{margin-left:auto}
      .hero{padding-top:18px}
      .hero-copy{padding:24px}
      .hero-points,.grid-2,.grid-3,.reviews,.case-list,.article-list,.network-list,.price-grid,.workflow,.stats,footer .footer-grid,.form-grid,image-strip{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .mobile-only{display:block}
      .desktop-only{display:none}
      .floating{right:12px;bottom:12px}
      .客服{left:12px;bottom:12px}
      table{min-width:760px}
      .image-strip{grid-template-columns:1fr}
    }
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease, transform .7s ease}
    .reveal.in{opacity:1;transform:none}