:root{
      --bg:#f7f4ff;
      --bg2:#fffafc;
      --card:#ffffff;
      --text:#1f2330;
      --muted:#62697c;
      --line:#e7defa;
      --primary:#7c3aed;
      --primary2:#b14cff;
      --accent:#ff5cc8;
      --shadow:0 18px 50px rgba(92,45,179,.12);
      --shadow2:0 10px 24px rgba(124,58,237,.14);
      --radius:22px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top left,#f8e9ff 0,#f7f4ff 20%,#fdfcff 55%,#fef8fb 100%);color:var(--text)}
    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:60;background:rgba(255,255,255,.82);backdrop-filter:blur(12px);border-bottom:1px solid rgba(124,58,237,.1)}
    .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:var(--shadow2)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:18px;line-height:1.1}
    .brand-text span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:14px;padding:10px 12px;font-size:14px}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#3a4052;padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover,.nav-links a:focus{background:#f1e8ff;color:var(--primary)}
    .hero{padding:38px 0 20px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:999px;filter:blur(16px);opacity:.8;pointer-events:none}
    .hero::before{width:220px;height:220px;background:rgba(124,58,237,.14);right:-50px;top:20px}
    .hero::after{width:180px;height:180px;background:rgba(255,92,200,.12);left:-40px;bottom:10px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.quote-card,.faq-item,.review-card,.article-card,.step-card,.service-card,.mini-card,.form-card,.compare-card,.panel{background:var(--card);border:1px solid rgba(124,58,237,.12);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(90deg,#f5e9ff,#fff1fb);color:#6b2bd7;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,52px);line-height:1.05;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:62ch}
    .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;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 16px 32px rgba(124,58,237,.25)}
    .btn-secondary{background:#fff;color:var(--primary);border-color:#e2d5ff}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow2)}
    .hero-side{padding:24px;background:linear-gradient(180deg,#ffffff 0,#fbf8ff 100%)}
    .kpi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .kpi{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#faf6ff);border:1px solid #efe3ff}
    .kpi strong{display:block;font-size:24px;color:#30145f}
    .kpi span{display:block;margin-top:5px;font-size:13px;color:var(--muted);line-height:1.5}
    .mini-list{display:grid;gap:10px;margin-top:14px}
    .mini-card{padding:14px 16px;box-shadow:none}
    .mini-card b{display:block;margin-bottom:4px}
    .section{padding:18px 0}
    .section h2{margin:0 0 10px;font-size:28px;line-height:1.2}
    .section .sub{margin:0 0 18px;color:var(--muted);line-height:1.8}
    .grid-3,.grid-4{display:grid;gap:16px}
    .grid-3{grid-template-columns:repeat(3,1fr)}
    .grid-4{grid-template-columns:repeat(4,1fr)}
    .service-card,.step-card,.review-card,.article-card,.compare-card,.form-card,.panel{padding:22px}
    .service-card h3,.step-card h3,.review-card h3,.article-card h3,.compare-card h3{margin:0 0 8px;font-size:18px}
    .service-card p,.step-card p,.review-card p,.article-card p,.compare-card p{margin:0;color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #eadcff;color:#5a2bb8;font-size:13px}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step-card{position:relative;overflow:hidden}
    .step-card .num{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,#7c3aed,#ff63ce);color:#fff;font-weight:700;margin-bottom:12px}
    .compare-wrap{overflow:auto;border-radius:var(--radius);border:1px solid rgba(124,58,237,.12);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:920px}
    th,td{padding:16px;border-bottom:1px solid #f0e7ff;text-align:left;vertical-align:top;font-size:14px}
    th{background:#fbf7ff;color:#35145d}
    .highlight{color:#8a2be2;font-weight:700}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .panel ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.8}
    details{background:#fff;border:1px solid #e9defd;border-radius:18px;padding:16px 18px;box-shadow:var(--shadow);margin-bottom:12px}
    summary{cursor:pointer;font-weight:700;color:#22163f}
    details p{color:var(--muted);line-height:1.75;margin:12px 0 0}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .stars{color:#ff9f1c;letter-spacing:1px;font-size:15px}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-card a{display:inline-flex;margin-top:14px;color:var(--primary);font-weight:700}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:13px;color:#41286d;margin-bottom:8px;font-weight:700}
    input,select,textarea{width:100%;border:1px solid #e5d8ff;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:.2s}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#b57bff;box-shadow:0 0 0 4px rgba(124,58,237,.1)}
    .full{grid-column:1/-1}
    .footer{margin-top:18px;padding:24px 0 28px;background:linear-gradient(180deg,#f7f1ff 0,#f4ecff 100%);border-top:1px solid rgba(124,58,237,.12);color:#32224e}
    .footer a{color:#5b2bc6}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .footer small{color:#655a7a}
    .floating{position:fixed;right:16px;bottom:16px;z-index:70;display:grid;gap:10px}
    .floating a,.floating button{border:none;border-radius:16px;padding:12px 14px;background:linear-gradient(135deg,#7c3aed,#ff61cd);color:#fff;box-shadow:0 14px 30px rgba(124,58,237,.25);font-weight:700;cursor:pointer}
    .scroll-top{display:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.7s ease}
    .reveal.show{opacity:1;transform:none}
    .hero-side .ai-page-image{margin-top:14px;border-radius:18px;border:1px solid #eadcff}
    .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .gallery .ai-page-image{border-radius:18px;border:1px solid #eadcff}
    .home-link{display:inline-flex;margin-top:10px}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.timeline,.review-grid,.article-list,.split,.footer-grid{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:8px 0 14px}
      .nav-links.open{display:flex;align-items:flex-start;flex-direction:column}
      .nav{flex-wrap:wrap}
    }
    @media (max-width: 640px){
      .container{width:min(var(--max),calc(100% - 22px))}
      .hero-main,.hero-side,.service-card,.step-card,.review-card,.article-card,.compare-card,.form-card,.panel{padding:18px}
      .hero{padding-top:22px}
      .hero-actions .btn{width:100%}
      .kpi-grid,.form-grid{grid-template-columns:1fr}
      h1{font-size:30px}
      .section h2{font-size:24px}
    }