:root{--bg:#f6f3fb;--bg2:#fff7fc;--card:#ffffffcc;--line:#eadff6;--text:#181124;--muted:#615573;--pri:#ff3ea5;--pri2:#7a4dff;--pri3:#ff7bd8;--ok:#1f9d7a;--shadow:0 18px 50px rgba(90,35,140,.12);--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 15% 10%, rgba(255,62,165,.18), transparent 26%),
      radial-gradient(circle at 85% 0%, rgba(122,77,255,.18), transparent 26%),
      linear-gradient(180deg,#fff 0%,var(--bg) 38%,#f7f2ff 100%);}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    .wrap{width:min(100% - 32px,var(--max));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.72);backdrop-filter:blur(18px);border-bottom:1px solid rgba(234,223,246,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .ai-page-logo{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 24px rgba(122,77,255,.12);padding:4px}
    .brand h2{margin:0;font-size:16px;line-height:1.1}.brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    nav ul{list-style:none;display:flex;align-items:center;gap:16px;margin:0;padding:0;flex-wrap:wrap;justify-content:flex-end}
    nav a{font-size:14px;color:#3d3050;padding:8px 10px;border-radius:999px;transition:.2s}
    nav a:hover,nav a:focus-visible{background:#f5e9ff;color:#5a238c;outline:none}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.sec-card,.panel,.review,.case,.faq,.article,.contact,.tablebox,.compare,.timeline,.price,.tagcloud,.network{background:var(--card);border:1px solid rgba(234,223,246,.95);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-main{padding:28px;position:relative;overflow:hidden}
    .hero-main:before{content:"";position:absolute;inset:auto -20% -35% auto;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle, rgba(255,62,165,.24), transparent 65%);filter:blur(6px)}
    .eyebrow{display:inline-flex;gap:8px;align-items:center;background:linear-gradient(135deg,#ffe2f2,#efe5ff);color:#6c227f;border:1px solid #f0d4ea;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:14px 0 12px;font-size:clamp(30px,5vw,54px);line-height:1.06;letter-spacing:-.03em}
    .lead{margin:0;color:#4e4560;font-size:16px;line-height:1.8;max-width:62ch}
    .cta-row{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;font-weight:700;border:1px solid transparent;transition:.2s;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 12px 28px rgba(122,77,255,.25)}
    .btn-secondary{background:#fff;color:#4a3961;border-color:var(--line)}
    .btn:hover{transform:translateY(-2px)} .btn:active{transform:translateY(0)}
    .hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:22px}
    .stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff, #fbf7ff);border:1px solid #f0e5fb}
    .stat strong{display:block;font-size:24px;line-height:1;color:#28143b}.stat span{display:block;margin-top:8px;color:var(--muted);font-size:13px;line-height:1.6}
    .hero-side{padding:20px;display:grid;gap:14px}
    .mini{padding:16px;border-radius:18px;background:linear-gradient(135deg,rgba(255,62,165,.08),rgba(122,77,255,.08));border:1px solid #efddfb}
    .mini h3,.sec-head h2,.panel h3,.section h2,.faq-item summary,.contact h2{margin:0}
    .mini p,.panel p,.sec-head p,.section p,.review p,.case p,.article p,.contact p{margin:8px 0 0;color:var(--muted);line-height:1.75}
    .chips,.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .chip,.tag{font-size:12px;padding:8px 11px;border-radius:999px;background:#fff;border:1px solid #eadff6;color:#4b3b66}
    .section{padding:18px 0 8px}
    .sec-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin:18px 0}
    .sec-head h2{font-size:26px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .sec-card,.panel,.case,.review,.article,.contact,.compare,.faq,.tablebox,.price,.timeline,.network{padding:18px}
    .icon{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#ffe3f0,#e8e0ff);display:grid;place-items:center;font-size:20px;margin-bottom:12px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:18px;border-radius:18px;background:#fff;border:1px solid #efe4fb;position:relative}
    .step b{display:inline-flex;width:30px;height:30px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;margin-bottom:10px}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid #eee1fb}
    table{width:100%;border-collapse:collapse;min-width:820px;background:#fff}
    th,td{padding:14px 12px;border-bottom:1px solid #f0e6fb;text-align:left;vertical-align:top;font-size:14px}
    th{background:#faf6ff;color:#35254f}
    .rating{font-size:18px;font-weight:800;color:#6a2bd7}
    .faq-list{display:grid;gap:12px}.faq-item{border:1px solid #eadff6;border-radius:16px;background:#fff;overflow:hidden}
    .faq-item summary{list-style:none;padding:16px 18px;cursor:pointer;font-weight:700;color:#2e2141}
    .faq-item summary::-webkit-details-marker{display:none}.faq-item .ans{padding:0 18px 16px;color:var(--muted);line-height:1.8}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{position:relative}.review .name{display:flex;justify-content:space-between;gap:10px;font-weight:700}.stars{color:#ff7a00;font-size:14px;white-space:nowrap}
    .flow{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .timeline{display:grid;gap:14px}.tl{display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:flex-start}
    .dot{width:12px;height:12px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--pri),var(--pri2));box-shadow:0 0 0 6px rgba(255,62,165,.12)}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article h3,.case h3,.contact h3{margin:0;font-size:18px}
    form{display:grid;gap:12px}.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid #e6dbf4;border-radius:14px;background:#fff;color:var(--text);font:inherit}
    textarea{min-height:118px;resize:vertical}
    footer{margin-top:18px;background:#17111f;color:#ede7ff;border-top:1px solid rgba(255,255,255,.08)}
    footer a{color:#ffd0f0} footer .wrap{padding:28px 0}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.copyright{margin-top:14px;color:#bfb1d8;font-size:13px;line-height:1.8}
    .float{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float a,.float button{width:52px;height:52px;border-radius:16px;border:none;display:grid;place-items:center;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 12px 30px rgba(122,77,255,.28);cursor:pointer}
    .backtop{opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}
    .backtop.show{opacity:1;pointer-events:auto;transform:none}
    .ai-page-home-link{font-weight:700;color:#7a4dff}
    .hero-images{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .hero-images img,.media-grid img{border-radius:18px;border:1px solid #efdefb;background:#fff}
    .media-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .tagcloud,.price,.network{padding:18px}
    .tagcloud .tags{margin-top:10px}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.steps,.reviews,.articles,.flow,.footer-grid{grid-template-columns:1fr}
      nav ul{display:none}.menu-btn{display:inline-flex}.nav.open nav ul{display:flex;position:absolute;left:16px;right:16px;top:62px;background:#fff;border:1px solid #eadff6;border-radius:18px;padding:12px;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow)}
      header{position:sticky}.hero-stats,.fields,.hero-images,.media-grid{grid-template-columns:1fr}
      .sec-head{align-items:flex-start;flex-direction:column}
    }
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}