:root{
      --bg:#f6f2ff;
      --bg2:#fff9f2;
      --card:#ffffff;
      --line:#e8e1f7;
      --text:#1e2230;
      --muted:#5d6475;
      --primary:#7c3aed;
      --primary2:#ef476f;
      --accent:#00b8d9;
      --gold:#ffb703;
      --shadow:0 18px 50px rgba(55, 36, 104, .12);
      --radius:20px;
      --max: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;background:radial-gradient(circle at top left,#fff 0,#fff 22%,var(--bg) 52%,#fff7fb 100%);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.84);backdrop-filter:blur(14px);border-bottom:1px solid rgba(232,225,247,.9)}
    .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 .ai-page-logo{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 10px 24px rgba(124,58,237,.12)}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#34394a;padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover{background:#f3ecff;color:var(--primary)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 16px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.22s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 12px 28px rgba(124,58,237,.22)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    .hero{padding:34px 0 18px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:999px;filter:blur(10px);opacity:.9;pointer-events:none}
    .hero::before{width:260px;height:260px;background:radial-gradient(circle,#ffd166 0,rgba(255,209,102,.14) 55%,transparent 70%);top:10px;right:-40px}
    .hero::after{width:220px;height:220px;background:radial-gradient(circle,#7c3aed 0,rgba(124,58,237,.12) 58%,transparent 70%);left:-70px;bottom:-60px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-card,.panel{background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(255,255,255,.98));border:1px solid rgba(232,225,247,.9);box-shadow:var(--shadow);border-radius:26px}
    .hero-card{padding:28px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:linear-gradient(135deg,#fff1f6,#f1ebff);color:#8a2450;font-size:13px;font-weight:700}
    h1{margin:14px 0 12px;font-size:clamp(30px,5vw,52px);line-height:1.08;letter-spacing:-.03em}
    .lead{font-size:16px;color:var(--muted);max-width:62ch;margin:0 0 18px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
    .point{background:linear-gradient(180deg,#fff,#fbf8ff);border:1px solid var(--line);border-radius:18px;padding:14px}
    .point strong{display:block;font-size:18px}
    .point span{color:var(--muted);font-size:13px}
    .side-card{padding:22px}
    .side-card h3,.section-title h2{margin:0 0 10px;font-size:26px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px}
    .metric{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#faf7ff);border:1px solid var(--line)}
    .metric b{display:block;font-size:22px;color:var(--primary)}
    .metric span{font-size:13px;color:var(--muted)}
    .section{padding:16px 0 0}
    .section-title{display:flex;justify-content:space-between;align-items:end;gap:12px;margin:26px 0 14px}
    .section-title p{margin:0;color:var(--muted)}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:0 10px 28px rgba(46, 39, 75, .06);padding:18px;transition:.22s}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(46,39,75,.1)}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted)}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px}
    .two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .timeline{display:grid;gap:12px}
    .step{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .step .n{width:34px;height:34px;flex:0 0 34px;border-radius:12px;background:linear-gradient(135deg,#7c3aed,#ef476f);color:#fff;display:grid;place-items:center;font-weight:800}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 14px;border-bottom:1px solid #edf0f7;text-align:left;font-size:14px;vertical-align:top}
    th{background:#faf7ff;color:#302a44}
    .score{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
    .score-box{padding:18px 20px;border-radius:20px;background:linear-gradient(135deg,#fff4f8,#f3efff);border:1px solid #eadcf7}
    .score-box b{font-size:28px;color:#da2c6f}
    .sticky-badge{display:inline-flex;align-items:center;gap:8px}
    .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .gallery .card img{border-radius:16px;border:1px solid var(--line)}
    .reviews,.faq,.blog{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 16px;overflow:hidden}
    summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700}
    summary::-webkit-details-marker{display:none}
    details p{margin:0 0 16px;color:var(--muted)}
    .form{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:flex;flex-direction:column;gap:7px}
    .field.full{grid-column:1/-1}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #dfe2ee;background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#a78bfa;box-shadow:0 0 0 4px rgba(124,58,237,.1)}
    .footer{margin-top:28px;padding:20px 0 24px;background:linear-gradient(180deg,#f9f4ff,#fff);border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}
    .small{color:var(--muted);font-size:13px}
    .links{display:flex;flex-wrap:wrap;gap:10px}
    .links a{padding:8px 12px;border-radius:12px;background:#fff;border:1px solid var(--line);font-size:13px}
    .floatbar{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .floatbtn{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,#7c3aed,#ef476f);color:#fff;box-shadow:0 16px 32px rgba(124,58,237,.24)}
    .scroll-top{opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}
    .scroll-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    .reveal{opacity:0;transform:translateY(16px);transition:.5s ease}
    .reveal.show{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.two-col,.grid-4,.gallery,.footer-grid{grid-template-columns:1fr}
      .nav-links,.nav-actions{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
      .hero-points{grid-template-columns:1fr}
      .form{grid-template-columns:1fr}
    }
    .mobile-menu{display:none;padding:0 0 14px}
    .mobile-menu.open{display:block}
    .mobile-menu a{display:block;padding:12px 10px;border-radius:12px;color:#2c3141}
    .mobile-menu a:hover{background:#f3ecff;color:var(--primary)}
    .muted-list{margin:0;padding-left:18px;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 12px;border-radius:999px;background:linear-gradient(135deg,#fff,#fbf2ff);border:1px solid var(--line);font-size:13px}