:root{
      --bg:#fff8f2;
      --panel:#ffffff;
      --panel-2:#fff3f6;
      --text:#1f2530;
      --muted:#5b6472;
      --line:#eadede;
      --brand:#ff4f7b;
      --brand-2:#ff8a3d;
      --brand-3:#6a5cff;
      --shadow:0 18px 50px rgba(23, 28, 43, .09);
      --radius:20px;
      --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",sans-serif;
      background:
        radial-gradient(circle at top left, rgba(255,79,123,.12), transparent 30%),
        radial-gradient(circle at top right, rgba(255,138,61,.10), transparent 28%),
        linear-gradient(180deg, #fffaf7 0%, #fff 26%, #fff8f2 100%);
      color:var(--text);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(180%) blur(16px);
      background:rgba(255,248,242,.82);
      border-bottom:1px solid rgba(234,222,222,.8);
    }
    .nav{
      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 img{width:42px;height:42px;object-fit:contain;border-radius:10px;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
    .nav-links a,.nav-links .ai-page-home-link{
      padding:9px 12px;border-radius:999px;font-size:14px;color:var(--muted);transition:.22s ease;background:transparent;
    }
    .nav-links a:hover,.nav-links .ai-page-home-link:hover{background:#fff;color:var(--text);box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .topbar-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:0;border-radius:999px;padding:12px 18px;font-weight:700;
      transition:.22s ease; cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 16px 28px rgba(255,79,123,.24)}
    .btn-primary:hover{transform:translateY(-2px)}
    .btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn-ghost:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,0,0,.08)}
    .hero{
      padding:30px 0 18px;
      position:relative;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch;
    }
    .hero-card,.glass-card,.section-card,.info-card,.quote-card,.faq-item,.form-card,.table-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(234,222,222,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-card{padding:30px; overflow:hidden; position:relative}
    .hero-card:before{
      content:""; position:absolute; inset:auto -80px -90px auto; width:220px; height:220px;
      background:radial-gradient(circle, rgba(255,79,123,.18), transparent 68%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      background:linear-gradient(135deg, rgba(255,79,123,.14), rgba(255,138,61,.14));
      color:#b5234c;border:1px solid rgba(255,79,123,.18);
      padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700;
    }
    h1{font-size:clamp(30px, 5vw, 52px); line-height:1.08; margin:16px 0 14px}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:58ch;margin:0}
    .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}
    .metric{
      padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff8fb);border:1px solid rgba(234,222,222,.8)
    }
    .metric b{display:block;font-size:22px}
    .metric span{font-size:13px;color:var(--muted)}
    .hero-side{display:grid;gap:14px}
    .side-top{padding:22px}
    .mini-list{display:grid;gap:10px;margin:14px 0 0;padding:0;list-style:none}
    .mini-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);line-height:1.6}
    .dot{width:10px;height:10px;border-radius:50%;margin-top:7px;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    .section{padding:18px 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:14px}
    .section-title h2{font-size:clamp(24px, 3vw, 34px);margin:0}
    .section-title p{margin:0;color:var(--muted);max-width:60ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .service-card,.step-card,.feature-card,.article-card,.review-card,.network-card,.package-card,.theme-card{
      padding:20px; border-radius:18px; background:#fff; border:1px solid var(--line); transition:.22s ease;
    }
    .service-card:hover,.step-card:hover,.feature-card:hover,.article-card:hover,.review-card:hover,.network-card:hover,.package-card:hover,.theme-card:hover{transform:translateY(-4px); box-shadow:0 14px 30px rgba(0,0,0,.08)}
    .service-card h3,.step-card h3,.feature-card h3,.article-card h3,.review-card h3,.network-card h3,.package-card h3,.theme-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.step-card p,.feature-card p,.article-card p,.review-card p,.network-card p,.package-card p,.theme-card p{margin:0;color:var(--muted);line-height:1.7}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:linear-gradient(180deg,#fff,#fff6f8);border:1px solid var(--line);font-size:13px;color:#3b4453}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:flex-start;padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .timeline-num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800}
    .table-wrap{overflow:auto;border-radius:18px}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}
    th,td{padding:14px 16px;border-bottom:1px solid #f0e7e7;text-align:left;vertical-align:top}
    th{background:#fff7f9;color:#2a3140}
    td{color:var(--muted)}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap
    }
    .stars{color:#ff9a1f;font-size:18px;letter-spacing:2px}
    .faq-list{display:grid;gap:12px}
    .faq-item summary{
      cursor:pointer; list-style:none; padding:18px 20px; font-weight:700; outline:none;
      display:flex;align-items:center;justify-content:space-between; gap:12px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .answer{padding:0 20px 18px;color:var(--muted);line-height:1.8}
    .faq-item[open]{border-color:rgba(255,79,123,.25)}
    .faq-item[open] summary{border-bottom:1px solid #f2e8e8}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:grid;gap:8px}
    label{font-size:14px;color:#3b4453;font-weight:700}
    input,select,textarea{
      width:100%;border:1px solid #dcd2d2;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);
      outline:none;transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:#ff7a97;box-shadow:0 0 0 4px rgba(255,79,123,.10)}
    textarea{min-height:132px;resize:vertical}
    .full{grid-column:1/-1}
    .footer{
      margin-top:16px;padding:26px 0 22px;background:#fff8f2;border-top:1px solid rgba(234,222,222,.9);color:var(--text)
    }
    .footer a{color:#c12c56}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
    .footer small,.footer p{color:var(--muted);line-height:1.8}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 16px 30px rgba(255,79,123,.28)
    }
    .float-panel{
      display:none;position:absolute;right:0;bottom:62px;width:min(320px,calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:14px
    }
    .floating.open .float-panel{display:block}
    .float-panel img{width:100%;border-radius:14px}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#fff0f4;color:#b11f4d;font-size:12px;font-weight:700}
    .muted{color:var(--muted)}
    .article-list{display:grid;gap:12px}
    .article-item{padding:16px 18px;border-radius:16px;background:#fff;border:1px solid var(--line);display:flex;justify-content:space-between;gap:12px}
    .article-item span{color:var(--muted)}
    .comment-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:10px}
    .avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,79,123,.16),rgba(255,138,61,.18));color:#a22a4c;font-weight:800}
    .scroll-note{font-size:13px;color:var(--muted)}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 0;justify-content:flex-start}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
      .topbar-cta{margin-left:auto}
      .form-grid{grid-template-columns:1fr}
      .section-title{align-items:flex-start;flex-direction:column}
    }