:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f2f6ff;
      --text:#172033;
      --muted:#5f6b85;
      --line:#dfe6f2;
      --brand:#2358ff;
      --brand2:#13c2c2;
      --brand3:#ff8a4c;
      --shadow:0 18px 40px rgba(35,88,255,.10);
      --shadow2:0 10px 26px rgba(16,24,40,.08);
      --radius:20px;
      --radius2:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(35,88,255,.11), transparent 22%),
        radial-gradient(circle at 85% 18%, rgba(19,194,194,.10), transparent 20%),
        linear-gradient(180deg, #f9fbff 0%, #f4f8ff 52%, #f7f9fc 100%);
      min-width:320px;
    }
    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:40;
      backdrop-filter:blur(16px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(223,230,242,.8);
    }
    .topbar{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 .word{min-width:0}
    .brand h2{margin:0;font-size:18px;line-height:1.2}
    .brand p{margin:3px 0 0;color:var(--muted);font-size:12px}
    .logo{
      width:42px;height:42px;border-radius:12px;object-fit:contain;background:#fff;border:1px solid var(--line);padding:4px;box-shadow:var(--shadow2)
    }
    .nav-wrap{display:flex;align-items:center;gap:12px}
    .nav-toggle{
      display:none;border:1px solid var(--line);background:#fff;color:var(--text);
      border-radius:12px;padding:10px 12px;font-weight:700
    }
    nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    nav a{font-size:14px;color:#30415f;padding:8px 0;position:relative}
    nav a::after{
      content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;border-radius:2px;
      background:linear-gradient(90deg,var(--brand),var(--brand2));transform:scaleX(0);transform-origin:left;transition:.25s ease
    }
    nav a:hover::after{transform:scaleX(1)}
    .home-link{
      display:inline-flex;align-items:center;justify-content:center;
      padding:11px 16px;border-radius:999px;background:linear-gradient(135deg,var(--brand),#5f7cff);
      color:#fff;font-weight:700;box-shadow:0 10px 22px rgba(35,88,255,.22)
    }
    .hero{padding:34px 0 12px}
    .hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.section-card,.faq-item,.comment,.article,.case,.pricebox,.timeline li,.compare-table,.form-card{
      background:rgba(255,255,255,.82);border:1px solid rgba(223,230,242,.9);border-radius:var(--radius);
      box-shadow:var(--shadow2)
    }
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main::before,.hero-main::after{
      content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none
    }
    .hero-main::before{width:210px;height:210px;background:rgba(35,88,255,.12);top:-70px;right:-60px}
    .hero-main::after{width:160px;height:160px;background:rgba(19,194,194,.10);bottom:-60px;left:-40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eff5ff;color:#2040a0;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:#30415f;font-size:16px;line-height:1.85;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.2s ease;
      cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#5d86ff);color:#fff;box-shadow:0 12px 26px rgba(35,88,255,.24)}
    .btn-secondary{background:#fff;color:#22304a;border-color:var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .tag{padding:9px 12px;border-radius:999px;background:#f4f8ff;border:1px solid #dfe7fb;color:#2e436b;font-size:13px}
    .hero-side{padding:22px;display:flex;flex-direction:column;gap:14px}
    .mini-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{padding:16px;border-radius:16px;background:linear-gradient(180deg,#fff,#f7faff);border:1px solid var(--line)}
    .metric strong{display:block;font-size:24px;line-height:1;color:#11203d}
    .metric span{display:block;margin-top:8px;color:var(--muted);font-size:13px;line-height:1.5}
    .side-note{padding:16px;border-radius:16px;background:linear-gradient(135deg,#eef5ff,#f2fffd);border:1px solid #d9e9ff}
    .side-note h3{margin:0 0 8px;font-size:16px}
    .side-note p{margin:0;color:#39506f;line-height:1.7;font-size:14px}
    main{padding:8px 0 24px}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(22px,3vw,32px)}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:68ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{padding:18px}
    .card h3{margin:10px 0 8px;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,#eaf1ff,#eefcfb);color:#1d56ff;font-weight:800
    }
    .list{margin:0;padding-left:18px}
    .flow{counter-reset:step}
    .flow .card{position:relative;padding-top:22px}
    .flow .card::before{
      counter-increment:step;content:counter(step,decimal-leading-zero);
      position:absolute;top:16px;right:16px;font-size:12px;font-weight:800;color:#7b8aad
    }
    .table-wrap{overflow:auto;border-radius:var(--radius)}
    table{width:100%;border-collapse:collapse;min-width:900px;background:#fff}
    th,td{padding:14px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f4f8ff;color:#1d2b49;font-size:14px}
    td{color:#42536e;line-height:1.7}
    .strong{color:#1431a8;font-weight:800}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap
    }
    .stars{color:#ffb400;font-size:20px;letter-spacing:2px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .timeline{list-style:none;margin:0;padding:0;display:grid;gap:12px}
    .timeline li{padding:16px 16px 16px 18px;border-left:4px solid var(--brand)}
    .timeline strong{display:block;margin-bottom:6px}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;border:0;background:transparent;padding:18px 18px;display:flex;justify-content:space-between;align-items:center;
      font-size:16px;font-weight:700;color:#1b2947;cursor:pointer;text-align:left
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 18px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{max-height:180px;padding-bottom:16px}
    .faq-item.active .chev{transform:rotate(180deg)}
    .chev{transition:.25s ease}
    .comments{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .comment{padding:18px}
    .comment .meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
    .comment .role{font-weight:800;color:#1a2a48}
    .comment p{margin:0;color:var(--muted);line-height:1.8}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .article{padding:18px}
    .article h3{margin:0 0 8px;font-size:18px}
    .article .sub{color:#6a7590;font-size:13px;margin-bottom:10px}
    .article p{margin:0;color:var(--muted);line-height:1.75}
    .gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .gallery .card{padding:14px}
    .gallery img{border-radius:16px;border:1px solid var(--line);background:#fff}
    .cloud{display:flex;flex-wrap:wrap;gap:10px}
    .cloud a,.cloud span{
      padding:10px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#34465f;font-size:13px
    }
    .pricing{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .pricebox{padding:18px}
    .price{font-size:34px;font-weight:900;color:#11204a}
    .muted{color:var(--muted)}
    .form-card{padding:20px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:grid;gap:8px;color:#20304e;font-weight:700;font-size:14px}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);
      font:inherit;outline:none;transition:.2s ease
    }
    textarea{min-height:118px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8db0ff;box-shadow:0 0 0 4px rgba(35,88,255,.08)}
    .submit-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    footer{
      margin-top:10px;background:#0f1c38;color:#d8e3ff;border-top:1px solid rgba(255,255,255,.08)
    }
    footer a{color:#ffffff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px;padding:24px 0}
    .footer-grid p,.footer-grid li{color:#c4d0ea;line-height:1.8}
    .footer-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer-bottom{padding:14px 0;border-top:1px solid rgba(255,255,255,.08);color:#b9c8e4;font-size:13px}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:50;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(223,230,242,.9);background:#fff;display:grid;place-items:center;
      box-shadow:var(--shadow2);font-size:18px
    }
    .kefu{
      position:fixed;left:16px;bottom:16px;z-index:50;background:#fff;border:1px solid var(--line);border-radius:18px;
      box-shadow:var(--shadow);padding:12px;display:flex;align-items:center;gap:12px;max-width:min(340px,calc(100vw - 32px))
    }
    .kefu img{width:86px;height:86px;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
    .kefu .txt{min-width:0}
    .kefu .txt strong{display:block;font-size:15px;margin-bottom:4px}
    .kefu .txt p{margin:0;color:var(--muted);line-height:1.6;font-size:13px}
    .scroll-reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .scroll-reveal.visible{opacity:1;transform:translateY(0)}
    .subnav{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
    .subnav a{background:#fff;border:1px solid var(--line);padding:11px 12px;border-radius:14px;text-align:center;font-size:13px;color:#2b3d5b}
    .banner-imgs{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .small-note{font-size:12px;color:#6b7590;margin-top:8px}
    @media (max-width: 1080px){
      .hero-grid,.grid-4,.comments,.pricing,.footer-grid{grid-template-columns:1fr}
      .grid-3,.two-col,.article-list,.gallery,.subnav{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      nav{display:none;width:100%;padding:10px 0 0;gap:10px}
      header.open nav{display:flex;flex-direction:column;align-items:stretch}
      .topbar{flex-wrap:wrap}
      .hero{padding-top:18px}
      .hero-main,.hero-side,.card,.section-card,.faq-q,.comment,.article,.case,.pricebox,.form-card{border-radius:18px}
      .grid-3,.grid-4,.two-col,.article-list,.gallery,.subnav,.form-grid,.banner-imgs{grid-template-columns:1fr}
      .mini-metrics{grid-template-columns:1fr 1fr}
      .kefu{left:12px;right:12px;bottom:12px;max-width:none}
      .floating{right:12px;bottom:12px}
    }