:root{
      --bg:#f6f8fc;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#182235;
      --muted:#5f6b85;
      --line:rgba(24,34,53,.12);
      --brand:#6b4dff;
      --brand2:#ff4f8b;
      --brand3:#ffb84d;
      --success:#16a34a;
      --shadow:0 18px 50px rgba(31,44,90,.12);
      --shadow2:0 10px 24px rgba(31,44,90,.10);
      --radius:22px;
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(107,77,255,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(255,79,139,.10), transparent 22%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 42%, #f8fbff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(14px);
      background:rgba(255,255,255,.78);
      border-bottom:1px solid rgba(24,34,53,.08);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      min-height:76px;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .nav-links{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px;color:#31405f;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:rgba(107,77,255,.10);color:var(--brand)}
    .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:999px;border:1px solid transparent;
      font-weight:700;font-size:14px;transition:.25s;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:var(--shadow2)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(107,77,255,.22)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:rgba(107,77,255,.35);color:var(--brand);transform:translateY(-1px)}
    .menu-toggle{display:none}
    .hero{
      padding:42px 0 24px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.1fr .9fr; gap:26px; align-items:stretch;
    }
    .hero-copy,.hero-panel,.card,.info-card,.step,.review,.faq-item,.compare-box,.article,.form-card,.network,.taxonomy,.timeline,.service-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(24,34,53,.08);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-copy{padding:32px; position:relative; overflow:hidden}
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(107,77,255,.10);
      color:var(--brand);font-weight:700;font-size:13px;
    }
    h1{font-size:clamp(34px,5vw,56px);line-height:1.08;margin:18px 0 14px;letter-spacing:-.03em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);margin:0 0 22px;max-width:60ch}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 22px}
    .badge{padding:8px 12px;border-radius:999px;background:#f4f6ff;color:#39486a;border:1px solid rgba(107,77,255,.12);font-size:13px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
    .mini-note{font-size:13px;color:var(--muted);line-height:1.7}
    .hero-panel{padding:24px;display:grid;gap:16px;align-content:start}
    .stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff, #f8f9ff);border:1px solid rgba(24,34,53,.08)}
    .stat strong{display:block;font-size:22px;margin-bottom:6px}
    .stat span{color:var(--muted);font-size:13px;line-height:1.5}
    .brand-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .brand-strip div{padding:12px;border-radius:16px;background:#fff5f8;color:#7f3352;font-size:13px;font-weight:700;text-align:center;border:1px solid rgba(255,79,139,.14)}
    .section{padding:22px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .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,.step,.review,.faq-item,.compare-box,.article,.form-card,.network,.taxonomy,.timeline,.service-card{padding:22px}
    .card h3,.info-card h3,.service-card h3,.article h3,.form-card h3{margin:0 0 10px;font-size:18px}
    .card p,.info-card p,.service-card p,.article p,.review p,.network p,.taxonomy p,.timeline p{margin:0;color:var(--muted);line-height:1.75}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(107,77,255,.12), rgba(255,79,139,.12));
      color:var(--brand);font-weight:800;margin-bottom:14px;
    }
    .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .chip{padding:7px 10px;border-radius:999px;background:#f4f7ff;border:1px solid rgba(24,34,53,.08);font-size:12px;color:#40506f}
    .feature-list{display:grid;gap:10px;margin-top:14px}
    .feature-list div{display:flex;gap:10px;align-items:flex-start;color:#32405d;line-height:1.65}
    .feature-list i{color:var(--success);font-style:normal;font-weight:900}
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{position:relative}
    .step .num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800;margin-bottom:14px}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid rgba(24,34,53,.08);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 18px;border-bottom:1px solid rgba(24,34,53,.08);text-align:left;vertical-align:top}
    th{background:#f7f8ff;font-size:14px}
    td{color:#31405f;line-height:1.7}
    .rating{display:inline-flex;gap:4px;color:#ffb84d}
    .check{color:var(--success);font-weight:700}
    .warn{color:#d97706;font-weight:700}
    .compare-summary{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .score{
      display:grid;place-items:center;text-align:center;min-height:100%;
      background:linear-gradient(135deg, rgba(107,77,255,.08), rgba(255,79,139,.08));
    }
    .score strong{font-size:58px;line-height:1;color:var(--brand);display:block}
    .score span{color:var(--muted);display:block;margin-top:8px}
    .kpi-tags{display:flex;flex-wrap:wrap;gap:10px}
    .kpi-tags .tag{padding:10px 12px;border-radius:14px;background:#fff;border:1px solid rgba(24,34,53,.08);font-size:13px;color:#41506e}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:start}
    .timeline-item b{color:var(--brand)}
    .network-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .network{min-height:100%}
    .network .label{display:inline-block;font-size:12px;font-weight:700;color:var(--brand);background:rgba(107,77,255,.10);padding:6px 10px;border-radius:999px;margin-bottom:10px}
    .compare-box .big{font-size:24px;font-weight:800;margin-bottom:8px}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:16px;color:var(--muted);font-size:13px}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-item button{
      width:100%;padding:18px 20px;border:0;background:transparent;color:var(--text);
      font:inherit;font-weight:700;display:flex;justify-content:space-between;align-items:center;cursor:pointer;text-align:left;
    }
    .faq-item .ans{padding:0 20px 18px;color:var(--muted);line-height:1.75;display:none}
    .faq-item.open .ans{display:block}
    .faq-item .plus{transition:.25s}
    .faq-item.open .plus{transform:rotate(45deg)}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article .meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
    .article .meta span{font-size:12px;padding:6px 8px;border-radius:999px;background:#f4f7ff;color:#495a79}
    .tags-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tags-cloud a{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid rgba(24,34,53,.08);color:#34435e;font-size:13px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:8px}
    label{font-size:13px;color:#34435e;font-weight:700}
    input,select,textarea{
      width:100%;border:1px solid rgba(24,34,53,.14);border-radius:14px;background:#fff;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s;
    }
    textarea{min-height:124px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(107,77,255,.48);box-shadow:0 0 0 4px rgba(107,77,255,.08)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:10px}
    .footer{
      margin-top:24px;
      padding:26px 0 22px;
      background:#111827;
      color:#eef2ff;
    }
    .footer a{color:#fff}
    .footer .muted{color:rgba(238,242,255,.74)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
    .footer-links a{padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.08)}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60;
      display:grid; gap:10px;
    }
    .floating a,.floating button{
      width:48px;height:48px;border-radius:50%;border:0;display:grid;place-items:center;
      box-shadow:var(--shadow2);cursor:pointer;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-size:18px;
    }
    .kefu-pop{
      position:fixed; right:16px; bottom:76px; width:280px; z-index:61; display:none;
      background:#fff;border:1px solid rgba(24,34,53,.1);border-radius:20px;box-shadow:var(--shadow);
      padding:16px;
    }
    .kefu-pop.open{display:block}
    .kefu-pop img{border-radius:14px;width:100%}
    .kefu-pop h4{margin:0 0 8px;font-size:16px}
    .kefu-pop p{margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.7}
    .scroll-top{opacity:0;pointer-events:none;transform:translateY(8px);transition:.25s}
    .scroll-top.show{opacity:1;pointer-events:auto;transform:none}
    .section-split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .list-compact{display:grid;gap:10px}
    .list-compact div{padding:12px 14px;border-radius:14px;background:#f8faff;border:1px solid rgba(24,34,53,.08);color:#34445e}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.workflow,.compare-summary,.reviews,.articles,.section-split,.footer-grid,.network-grid{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{
        display:flex; position:absolute; left:16px; right:16px; top:76px; background:#fff; padding:14px; border-radius:20px;
        box-shadow:var(--shadow); border:1px solid rgba(24,34,53,.08); flex-direction:column; align-items:flex-start;
      }
      .nav.open .nav-links a{width:100%}
      .hero{padding-top:22px}
      .stats{grid-template-columns:1fr 1fr}
      .brand-strip{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .hero-copy,.hero-panel,.card,.info-card,.step,.review,.faq-item,.compare-box,.article,.form-card,.network,.taxonomy,.timeline,.service-card{padding:18px}
      h1{font-size:32px}
      .section-head{flex-direction:column;align-items:flex-start}
      .stats{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      .desktop-only{display:none}
      .mobile-only{display:inline-flex}
    }
    .reveal{opacity:0; transform:translateY(18px); transition:.6s ease}
    .reveal.show{opacity:1; transform:none}