:root{
      --bg:#fbfbfd;
      --panel:#ffffff;
      --panel2:#f5f8ff;
      --text:#182235;
      --muted:#5c6b84;
      --line:#e6ebf3;
      --brand1:#6f7dff;
      --brand2:#ff7db3;
      --brand3:#35c6b6;
      --brand4:#ffb84d;
      --shadow:0 18px 50px rgba(31,49,97,.08);
      --radius:22px;
      --max:1180px;
    }
    *{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(--text);
      background:
        radial-gradient(circle at top left, rgba(111,125,255,.11), transparent 28%),
        radial-gradient(circle at top right, rgba(255,125,179,.12), transparent 24%),
        radial-gradient(circle at 20% 20%, rgba(53,198,182,.08), transparent 18%),
        linear-gradient(180deg,#fff 0%, #fbfcff 40%, #f7f9fd 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px,var(--max));margin:0 auto}
    header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(18px);
      background:rgba(251,251,253,.82);
      border-bottom:1px solid rgba(230,235,243,.7);
    }
    .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)}
    .brand-text{display:flex;flex-direction:column;line-height:1.1}
    .brand-text strong{font-size:16px}
    .brand-text span{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:#31405a;padding:8px 10px;border-radius:10px}
    .nav-links a:hover{background:#eef3ff;color:#223054}
    .nav-actions{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:11px 16px;
      font-weight:600;font-size:14px;transition:.25s ease;
      box-shadow:none;cursor:pointer;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--brand1),var(--brand2));
      color:#fff;box-shadow:0 12px 28px rgba(111,125,255,.22);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(111,125,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:#223054}
    .btn-ghost:hover{border-color:#cbd5ea;transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{
      padding:34px 0 18px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;
    }
    .hero-main,.hero-side,.card,.section-box,.faq-item,.review,.article,.contact-box,.price-box,.compare-card,.timeline,.tag-cloud,.service-network{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(230,235,243,.95);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;filter:blur(10px);opacity:.7;pointer-events:none
    }
    .hero-main:before{width:220px;height:220px;right:-70px;top:-80px;background:radial-gradient(circle, rgba(111,125,255,.22), transparent 66%)}
    .hero-main:after{width:240px;height:240px;right:40px;bottom:-120px;background:radial-gradient(circle, rgba(255,125,179,.18), transparent 66%)}
    .kicker{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:#eef3ff;color:#3a4aa2;
      font-size:13px;font-weight:700
    }
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,52px);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.85;max-width:64ch}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .point{
      background:linear-gradient(180deg,#fff, #f7f9ff);
      border:1px solid var(--line);border-radius:18px;padding:14px 14px 12px
    }
    .point b{display:block;font-size:18px}
    .point span{display:block;margin-top:5px;font-size:13px;color:var(--muted);line-height:1.5}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .mini-stat{
      display:flex;justify-content:space-between;align-items:flex-end;gap:12px;
      padding:16px;border-radius:18px;background:linear-gradient(135deg,#f5f8ff,#ffffff);border:1px solid var(--line)
    }
    .mini-stat strong{font-size:24px}
    .mini-stat span{font-size:13px;color:var(--muted)}
    .badge-row{display:flex;flex-wrap:wrap;gap:8px}
    .badge{padding:8px 10px;border-radius:999px;background:#f2f5fb;color:#30415c;font-size:12px;border:1px solid var(--line)}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:14px;margin:8px 0 16px}
    .section-head h2{margin:0;font-size:26px}
    .section-head p{margin:0;color:var(--muted);max-width:68ch;line-height:1.75}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .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:20px}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li,.faq-item p,.review p,.article p,.contact-box p,.section-box p{color:var(--muted);line-height:1.8}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(111,125,255,.14), rgba(255,125,179,.12));
      color:#394ab0;font-weight:800;margin-bottom:12px
    }
    .section-box{padding:22px}
    .metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{
      padding:20px;border-radius:20px;background:#fff;border:1px solid var(--line)
    }
    .metric strong{display:block;font-size:28px}
    .metric span{display:block;color:var(--muted);margin-top:8px;line-height:1.5}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{
      position:relative;padding:20px;border-radius:20px;background:linear-gradient(180deg,#fff,#f7faff);border:1px solid var(--line)
    }
    .step em{font-style:normal;display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;background:#eef3ff;color:#3447a3;font-weight:800}
    .step h3{margin:14px 0 8px}
    .table-wrap{overflow-x:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f6f8ff;color:#26344d;font-size:14px}
    td{color:#42516c}
    .highlight{background:#f3f8ff}
    .rating{
      display:grid;grid-template-columns:1.1fr .9fr;gap:14px;align-items:stretch
    }
    .rating-card{padding:24px}
    .stars{color:#ffb84d;font-size:22px;letter-spacing:2px}
    .review-grid,.article-grid,.faq-grid,.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review{padding:20px}
    .review .meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:12px}
    .role{font-weight:700}
    .tag-cloud{padding:18px;display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud a,.tag-cloud span{
      padding:9px 12px;border-radius:999px;background:#f4f7fd;border:1px solid var(--line);font-size:13px;color:#31405a
    }
    .timeline{padding:20px}
    .timeline ul{list-style:none;padding:0;margin:0;display:grid;gap:14px}
    .timeline li{display:grid;grid-template-columns:100px 1fr;gap:12px;align-items:start;padding-bottom:12px;border-bottom:1px dashed #dfe6f2}
    .timeline li:last-child{border-bottom:0;padding-bottom:0}
    .timeline b{color:#223054}
    .service-network{padding:20px}
    .network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .net-item{padding:16px;border-radius:16px;background:#f7f9ff;border:1px solid var(--line)}
    .faq-item{
      overflow:hidden
    }
    .faq-q{
      width:100%;background:none;border:0;padding:18px 20px;font:inherit;text-align:left;display:flex;justify-content:space-between;gap:14px;cursor:pointer;color:var(--text)
    }
    .faq-q strong{font-size:16px}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.open .faq-a{padding-bottom:18px;max-height:220px}
    .faq-item.open .faq-q .arr{transform:rotate(45deg)}
    .arr{transition:transform .25s ease;color:#6b77d8;font-size:22px;font-weight:400}
    .article{padding:18px}
    .article .date{font-size:12px;color:#6d7890}
    .contact-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:14px}
    .contact-box{padding:22px}
    .contact-list{display:grid;gap:10px;margin-top:16px}
    .contact-list div{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
    .contact-list div:last-child{border-bottom:0}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    label{font-size:14px;font-weight:600;color:#2b3952}
    input,select,textarea{
      width:100%;border:1px solid #dbe3f0;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:border-color .2s, box-shadow .2s
    }
    input:focus,select:focus,textarea:focus{border-color:#8d9aff;box-shadow:0 0 0 4px rgba(111,125,255,.12)}
    textarea{min-height:120px;resize:vertical}
    .submit-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .footer{
      padding:22px 0 30px;margin-top:8px;border-top:1px solid var(--line);
      background:linear-gradient(180deg,rgba(247,249,253,.9),rgba(242,246,252,.96));color:#20304d
    }
    .footer a{color:#223f91}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:14px;align-items:start}
    .footer small{color:#5e6b83;line-height:1.7}
    .float{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float a,.float button{
      width:48px;height:48px;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;cursor:pointer
    }
    .to-top{display:none}
    .mobile-only{display:none}
    .fade-in{opacity:0;transform:translateY(16px);transition:.6s ease}
    .fade-in.visible{opacity:1;transform:none}
    .subtle{font-size:13px;color:var(--muted)}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:14px
    }
    .price-box{padding:20px}
    .price-list{display:grid;gap:10px;margin-top:12px}
    .price-list div{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
    .price-list div:last-child{border-bottom:0}
    @media (max-width: 1024px){
      .hero-grid,.contact-wrap,.rating,.footer-grid,.grid-4,.grid-3,.grid-2,.review-grid,.article-grid,.faq-grid,.case-grid,.flow,.metric-row,.network-grid,.split{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:10px;flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 12px}
      .menu-toggle{display:inline-flex}
      .desktop-cta{display:none}
      .mobile-only{display:inline-flex}
      .hero-main,.hero-side,.card,.section-box,.faq-item,.review,.article,.contact-box,.price-box,.compare-card,.timeline,.tag-cloud,.service-network{border-radius:18px}
      .hero-main{padding:24px}
      .hero-grid,.contact-wrap,.rating,.footer-grid,.grid-4,.grid-3,.grid-2,.review-grid,.article-grid,.faq-grid,.case-grid,.flow,.metric-row,.network-grid,.split{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .timeline li{grid-template-columns:1fr}
      .float{right:12px;bottom:12px}
    }