:root{
      --bg:#f6f7fb;
      --surface:#ffffff;
      --surface-2:#f2f5ff;
      --text:#172033;
      --muted:#5d6782;
      --line:#dbe2f1;
      --brand:#335cff;
      --brand-2:#8c4dff;
      --brand-3:#10b7a6;
      --shadow:0 18px 50px rgba(35,48,89,.08);
      --radius:22px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(140,77,255,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(51,92,255,.10), transparent 30%),
        linear-gradient(180deg,#f8f9fe 0%, #f6f7fb 45%, #f8fbff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:40;
      backdrop-filter:blur(14px);
      background:rgba(246,247,251,.78);
      border-bottom:1px solid rgba(219,226,241,.85);
    }
    .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;border-radius:12px;background:#fff;padding:4px;border:1px solid var(--line);box-shadow:0 8px 20px rgba(35,48,89,.06)}
    .brand strong{display:block;font-size:16px;letter-spacing:.5px}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .nav-toggle{display:none;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;align-items:center}
    .nav-links a{
      font-size:13px;color:var(--muted);padding:9px 11px;border-radius:999px;border:1px solid transparent;
      transition:.2s ease;background:transparent;
    }
    .nav-links a:hover,.nav-links a:focus-visible{color:var(--text);background:#fff;border-color:var(--line);box-shadow:0 10px 24px rgba(35,48,89,.06)}
    .hero{
      padding:34px 0 22px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.25fr .75fr;gap:20px;align-items:stretch;
    }
    .hero-main,.hero-side,.card,.panel,.table-wrap,.faq-item,.review,.timeline li,.article, .compare{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(219,226,241,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-main{
      padding:34px;
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(255,255,255,.92), rgba(242,245,255,.88)),
        radial-gradient(circle at top right, rgba(140,77,255,.18), transparent 24%),
        radial-gradient(circle at left bottom, rgba(16,183,166,.16), transparent 28%);
    }
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:999px;filter:blur(0);
      background:linear-gradient(135deg, rgba(51,92,255,.16), rgba(140,77,255,.14), rgba(16,183,166,.16));
      animation:float 8s ease-in-out infinite;
    }
    .hero-main:before{width:160px;height:160px;right:-50px;top:-40px}
    .hero-main:after{width:120px;height:120px;left:42%;bottom:-46px;animation-delay:-2s}
    @keyframes float{50%{transform:translateY(-10px) translateX(6px)}}
    .kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(51,92,255,.10);color:#2846c7;font-size:13px;font-weight:600}
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,54px);line-height:1.08;letter-spacing:-.02em}
    .hero-main p{margin:0;color:var(--muted);font-size:16px;line-height:1.85;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:10px;
      padding:13px 18px;border-radius:14px;font-weight:700;font-size:14px;border:1px solid transparent;
      transition:.2s ease;cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 30px rgba(51,92,255,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(51,92,255,.30)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#b8c4e6}
    .hero-side{padding:20px;display:flex;flex-direction:column;gap:14px;position:relative;overflow:hidden}
    .hero-side .mini{
      padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7f9ff);border:1px solid var(--line)
    }
    .mini strong{display:block;font-size:15px;margin-bottom:8px}
    .mini ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.8;font-size:14px}
    .stats{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px
    }
    .stat{
      padding:18px;border-radius:20px;background:rgba(255,255,255,.86);border:1px solid var(--line)
    }
    .stat b{display:block;font-size:26px;line-height:1;color:var(--text)}
    .stat span{display:block;margin-top:8px;color:var(--muted);font-size:13px;line-height:1.5}
    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:26px}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;font-size:14px;max-width:64ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .card{padding:18px}
    .card h3,.panel h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.article p{margin:0;color:var(--muted);line-height:1.8;font-size:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span,.pill{
      padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#33405b;font-size:13px
    }
    .panel{padding:20px}
    .list-check{display:grid;gap:10px;margin:14px 0 0;padding:0;list-style:none}
    .list-check li{padding-left:26px;position:relative;color:var(--muted);line-height:1.7;font-size:14px}
    .list-check li:before{content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-3))}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:20px;background:linear-gradient(180deg,#fff,#f4f7ff);border:1px solid var(--line)}
    .step b{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:12px;background:rgba(51,92,255,.12);color:#2440bf;margin-bottom:12px}
    .table-wrap{padding:10px;overflow:auto}
    table{width:100%;border-collapse:separate;border-spacing:0;min-width:760px;background:#fff;border-radius:18px;overflow:hidden}
    th,td{padding:14px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
    th{background:#f5f7ff;color:#223055}
    tr:last-child td{border-bottom:none}
    .rating{display:flex;align-items:center;gap:8px;color:#8a5b00;font-weight:700}
    .rating .star{color:#ffb12b;font-size:18px;letter-spacing:1px}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;border:0;background:transparent;padding:18px;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:14px;
      color:var(--text);font-size:16px;font-weight:700;cursor:pointer
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;border-top:1px solid transparent}
    .faq-item.open .faq-a{max-height:180px;padding:0 18px 18px;border-top-color:var(--line)}
    .faq-a p{margin:0;color:var(--muted);line-height:1.8;font-size:14px}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review{padding:18px}
    .review .name{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .review strong{font-size:15px}
    .review em{font-style:normal;color:#6a78a0;font-size:13px}
    .timeline{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .timeline li{padding:18px;position:relative}
    .timeline .num{display:inline-flex;width:38px;height:38px;border-radius:14px;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;margin-bottom:12px}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article{padding:18px}
    .article .meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}
    .article .meta span{font-size:12px;padding:6px 10px;border-radius:999px;background:#eef3ff;color:#364d97}
    .form-card form{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .form-card .full{grid-column:1/-1}
    label{display:block;font-size:13px;font-weight:700;margin-bottom:8px;color:#34425f}
    input,select,textarea{
      width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);
      outline:none;transition:.18s ease
    }
    input:focus,select:focus,textarea:focus{border-color:#7f97ff;box-shadow:0 0 0 4px rgba(51,92,255,.10)}
    textarea{min-height:120px;resize:vertical}
    .footer{
      margin-top:18px;padding:26px 0 18px;background:#eef2ff;border-top:1px solid #d7dff1;color:#22324f
    }
    .footer a{color:#2948cb}
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:16px;align-items:start}
    .footer small{display:block;color:#5e6a87;line-height:1.7}
    .contact-badge{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .fixed-tools{
      position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px
    }
    .tool{
      width:46px;height:46px;border-radius:16px;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;
      box-shadow:0 12px 26px rgba(35,48,89,.12);cursor:pointer
    }
    .chatbox{
      position:fixed;right:16px;bottom:76px;z-index:51;width:min(340px,calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden;display:none
    }
    .chatbox.open{display:block;animation:pop .18s ease}
    @keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
    .chatbox .top{padding:14px 16px;background:linear-gradient(135deg,#edf1ff,#f7edff);border-bottom:1px solid var(--line);font-weight:800}
    .chatbox .content{padding:14px 16px;display:grid;gap:12px}
    .chatbox img{width:100%;border-radius:16px;border:1px solid var(--line)}
    .scroll-reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .scroll-reveal.visible{opacity:1;transform:none}
    .note{color:var(--muted);font-size:13px;line-height:1.7}
    .compare{padding:18px}
    .topline{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
    .home-link{font-weight:800;color:#2747c8}
    .service-network{display:flex;flex-wrap:wrap;gap:10px}
    .service-network a{padding:10px 12px;border-radius:14px;background:#fff;border:1px solid var(--line);color:var(--text);font-size:13px}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.reviews,.articles,.footer-grid,.timeline,.workflow,.stats,.grid-2{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding-top:8px;justify-content:flex-start}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
      .hero-grid,.grid-3,.reviews,.articles,.footer-grid,.timeline,.workflow,.stats,.grid-2,.form-card form{grid-template-columns:1fr}
      .hero-main{padding:24px}
      .section-head{flex-direction:column;align-items:flex-start}
      table{min-width:860px}
      .fixed-tools{right:12px;bottom:12px}
    }