:root{
      --bg:#fff7f8;
      --panel:#ffffff;
      --panel-2:#fff0f3;
      --text:#1f2937;
      --muted:#667085;
      --brand:#c9184a;
      --brand-2:#ff6b6b;
      --line:#f2c7d1;
      --shadow:0 18px 50px rgba(201,24,74,.10);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#fff7f8 0%,#fffdfd 30%,#fff7f8 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(255,247,248,.9);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid rgba(201,24,74,.08)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;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(201,24,74,.12);padding:5px}
    .brand h2{margin:0;font-size:1rem;line-height:1.1}
    .brand p{margin:4px 0 0;color:var(--muted);font-size:.86rem}
    nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    nav a{font-size:.92rem;color:#374151;padding:8px 10px;border-radius:999px;transition:.2s}
    nav a:hover{background:#fff;color:var(--brand);box-shadow:0 10px 20px rgba(201,24,74,.08)}
    .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:.2s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 16px 30px rgba(201,24,74,.22)}
    .btn-ghost{background:#fff;color:var(--brand);border-color:rgba(201,24,74,.16)}
    .btn:hover{transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid rgba(201,24,74,.14);padding:10px 12px;border-radius:12px}
    .hero{padding:34px 0 18px;position:relative;overflow:hidden}
    .hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(255,107,107,.16),transparent 28%),radial-gradient(circle at 80% 10%,rgba(201,24,74,.11),transparent 24%),linear-gradient(135deg,rgba(255,255,255,.45),rgba(255,255,255,.1));pointer-events:none}
    .hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-copy,.panel{background:rgba(255,255,255,.82);border:1px solid rgba(201,24,74,.12);border-radius:28px;box-shadow:var(--shadow)}
    .hero-copy{padding:30px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.86rem;color:var(--brand);background:#fff1f4;border:1px solid rgba(201,24,74,.14);padding:7px 12px;border-radius:999px}
    h1{margin:16px 0 14px;font-size:clamp(2rem,4vw,3.6rem);line-height:1.05;letter-spacing:-.03em}
    .lead{margin:0;color:var(--text);font-size:1.06rem;line-height:1.8;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{padding:14px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff7f9);border:1px solid rgba(201,24,74,.1)}
    .mini strong{display:block;font-size:1.05rem}
    .mini span{display:block;color:var(--muted);font-size:.88rem;margin-top:6px;line-height:1.6}
    .hero-side{padding:22px;display:grid;gap:14px}
    .side-card{background:linear-gradient(180deg,#fff,#fff6f8);border:1px solid rgba(201,24,74,.12);border-radius:22px;padding:18px}
    .side-card h3{margin:0 0 8px;font-size:1.04rem}
    .side-card p,.side-card li{color:var(--muted);line-height:1.7}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:10px 0 8px}
    .stat{background:var(--panel);border:1px solid rgba(201,24,74,.1);border-radius:20px;padding:18px;box-shadow:0 12px 30px rgba(15,23,42,.04)}
    .stat strong{display:block;font-size:1.35rem;color:var(--brand)}
    .stat span{display:block;color:var(--muted);margin-top:6px;line-height:1.5}
    section{padding:20px 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-title h2{margin:0;font-size:1.55rem}
    .section-title p{margin:0;color:var(--muted);max-width:58ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{background:var(--panel);border:1px solid rgba(201,24,74,.1);border-radius:24px;padding:20px;box-shadow:0 14px 34px rgba(15,23,42,.04);transition:.22s}
    .card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(201,24,74,.09)}
    .chip{display:inline-flex;padding:6px 10px;border-radius:999px;background:#fff1f4;color:var(--brand);font-size:.82rem;font-weight:700}
    .list{padding:0;margin:14px 0 0;list-style:none;display:grid;gap:10px}
    .list li{padding-left:18px;position:relative;color:var(--muted);line-height:1.65}
    .list li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    .timeline{display:grid;gap:12px}
    .step{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:18px;background:#fffafc;border:1px solid rgba(201,24,74,.1)}
    .num{flex:0 0 36px;height:36px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800}
    .compare{overflow:auto;border:1px solid rgba(201,24,74,.1);border-radius:24px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #f2e3e7;text-align:left;vertical-align:top}
    th{background:#fff6f8;color:#111827}
    td{color:#374151;line-height:1.7}
    .score{font-size:1.2rem;font-weight:800;color:var(--brand)}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid rgba(201,24,74,.1);border-radius:18px;padding:0 18px;box-shadow:0 10px 24px rgba(15,23,42,.03)}
    summary{cursor:pointer;padding:16px 0;list-style:none;font-weight:700;color:#1f2937}
    summary::-webkit-details-marker{display:none}
    details p{margin:0 0 16px;color:var(--muted);line-height:1.8}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review h3{margin:0 0 8px;font-size:1rem}
    .review .meta{color:var(--brand);font-weight:700;font-size:.88rem;margin-bottom:10px}
    .media-strip{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}
    .media-card{overflow:hidden;padding:0}
    .media-card img{width:100%;height:auto;display:block}
    .article-list{display:grid;gap:12px}
    .article-item{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid rgba(201,24,74,.1)}
    .article-item span{color:var(--muted)}
    .cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid rgba(201,24,74,.1);color:#4b5563;font-size:.88rem}
    .pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price{padding:22px;border-radius:24px;background:linear-gradient(180deg,#fff,#fff6f8);border:1px solid rgba(201,24,74,.12)}
    .price strong{display:block;font-size:1.5rem;color:var(--brand);margin:8px 0}
    .form-wrap{display:grid;grid-template-columns:1fr .9fr;gap:16px}
    form{display:grid;gap:12px}
    input,select,textarea{width:100%;border:1px solid #e6c9d1;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:#111827;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(201,24,74,.08)}
    textarea{min-height:120px;resize:vertical}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    footer{margin-top:10px;padding:22px 0 28px;border-top:1px solid rgba(201,24,74,.1);background:#fff7f8;color:#374151}
    .footer-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    .copyright{margin-top:14px;color:#6b7280;font-size:.92rem}
    .float{position:fixed;right:16px;bottom:18px;z-index:40;display:grid;gap:10px}
    .float a,.float button{width:52px;height:52px;border-radius:16px;border:none;display:grid;place-items:center;box-shadow:0 14px 30px rgba(201,24,74,.2);background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;cursor:pointer}
    .back-top{display:none}
    .fade{opacity:0;transform:translateY(16px);transition:.6s ease}
    .fade.show{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.reviews,.pricing,.media-strip,.form-wrap,.footer-grid,.stats{grid-template-columns:1fr}
      nav{display:none;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;background:#fff;border:1px solid rgba(201,24,74,.12);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      nav.open{display:flex}
      .menu-toggle{display:inline-flex}
      .hero-points{grid-template-columns:1fr}
      .mobile-only{display:inline-flex}
      .section-title{align-items:flex-start;flex-direction:column}
    }