:root{
      --bg:#fff7f8;
      --surface:#ffffff;
      --surface-2:#fff1f3;
      --line:#f0d7dd;
      --text:#2b1f23;
      --muted:#6e5b61;
      --brand:#d83a66;
      --brand-2:#ff6a8a;
      --brand-3:#ff9bb2;
      --shadow:0 18px 50px rgba(216,58,102,.12);
      --shadow-2:0 10px 26px rgba(50,18,32,.08);
      --radius:22px;
      --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(255,106,138,.16), transparent 28%),
        radial-gradient(circle at top right, rgba(216,58,102,.08), transparent 24%),
        linear-gradient(180deg, #fff9fb 0%, #fffdfd 100%);
      color:var(--text);
      line-height:1.6;
    }
    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:20;background:rgba(255,247,248,.84);backdrop-filter:blur(12px);border-bottom:1px solid rgba(240,215,221,.8)}
    .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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:5px;box-shadow:var(--shadow-2)}
    .brand .name{display:flex;flex-direction:column;min-width:0}
    .brand strong{font-size:1.03rem;letter-spacing:.5px}
    .brand span{font-size:.82rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.92rem;color:#4d3940;padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a.active{background:#fff;color:var(--brand);box-shadow:0 6px 16px rgba(216,58,102,.1)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;
      padding:11px 16px;font-weight:700;transition:.22s ease;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 16px 28px rgba(216,58,102,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(216,58,102,.28)}
    .btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#efb7c5}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;color:var(--text)}
    main{display:block}
    section{padding:64px 0}
    .hero{padding:48px 0 56px}
    .hero-wrap{
      display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch
    }
    .hero-card,.panel,.card,.faq-item,.review,.article,.step,.compare-box,.form-box,.info-box{
      background:var(--surface);border:1px solid rgba(240,215,221,.95);border-radius:var(--radius);box-shadow:var(--shadow-2)
    }
    .hero-card{padding:34px;position:relative;overflow:hidden;background:
      linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,245,247,.98));
    }
    .hero-card::before{
      content:"";position:absolute;inset:auto -50px -60px auto;width:220px;height:220px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,106,138,.14), transparent 68%)
    }
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--surface-2);color:var(--brand);border:1px solid #f4c5cf;padding:7px 12px;border-radius:999px;font-size:.88rem;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(2rem,4vw,3.55rem);line-height:1.1;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:1.02rem;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .mini-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
    .metric{padding:16px 14px;border-radius:18px;background:#fff7f8;border:1px solid #f2d9de}
    .metric strong{display:block;font-size:1.22rem}
    .metric span{color:var(--muted);font-size:.88rem}
    .hero-side{display:grid;gap:14px}
    .panel{padding:20px}
    .panel h3,.section-title h2{margin:0 0 8px;font-size:1.45rem}
    .section-title p{margin:0;color:var(--muted)}
    .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff7f8;border:1px solid #f0d7dd;color:#5b3b45;font-size:.88rem}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .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{padding:22px;transition:transform .2s ease, box-shadow .2s ease}
    .card:hover,.review:hover,.article:hover,.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .card h3,.review h3,.article h3,.step h3{margin:0 0 10px;font-size:1.08rem}
    .card p,.review p,.article p,.step p,.faq-item p,.compare-box p{margin:0;color:var(--muted)}
    .icon{
      width:42px;height:42px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,#ffe0e8,#fff);color:var(--brand);font-weight:800;margin-bottom:14px;border:1px solid #f0d7dd
    }
    .subtle-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:10px;color:var(--text)}
    .subtle-list li{display:flex;gap:10px;align-items:flex-start}
    .subtle-list li::before{content:"•";color:var(--brand);font-weight:900;line-height:1.2}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .stat{padding:18px;background:linear-gradient(180deg,#fff,#fff7f8);border:1px solid #f1d8df;border-radius:20px}
    .stat strong{display:block;font-size:1.45rem;color:var(--brand)}
    .stat span{color:var(--muted);font-size:.9rem}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid #eed9df;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;border-bottom:1px solid #f2e3e7;text-align:left;vertical-align:top}
    th{background:#fff5f7;color:#4b3138;font-size:.95rem}
    td{color:#4d4044}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;font-size:.82rem;font-weight:700}
    .badge.good{background:#ffe2ea;color:#b11d49}
    .badge.soft{background:#fff0f4;color:#7d5060}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:90px 1fr;gap:14px;align-items:start;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid #f1d9df}
    .timeline-item strong{color:var(--brand)}
    .compare-box{padding:24px}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 0 0}
    .stars{color:#f19a00;letter-spacing:2px;font-size:1.15rem}
    .faq-item{padding:18px 20px}
    .faq-q{display:flex;justify-content:space-between;align-items:center;gap:14px;cursor:pointer}
    .faq-q h3{margin:0;font-size:1.02rem}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;margin-top:0}
    .faq-item.open .faq-a{max-height:220px;margin-top:12px}
    .faq-toggle{width:30px;height:30px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:#fff5f7;color:var(--brand);flex:0 0 auto}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:20px}
    .review .meta{display:flex;justify-content:space-between;gap:12px;margin-bottom:12px;color:var(--muted);font-size:.88rem}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{padding:20px}
    .article .tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:#fff2f5;color:var(--brand);font-size:.82rem;margin-bottom:12px}
    .form-box{padding:24px}
    form{display:grid;gap:14px}
    .field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:grid;gap:8px;font-size:.92rem;color:#4a3a40;font-weight:600}
    input,select,textarea{
      width:100%;padding:13px 14px;border:1px solid #e8d3da;border-radius:14px;background:#fff;font:inherit;color:var(--text);outline:none;
    }
    input:focus,select:focus,textarea:focus{border-color:#e39aab;box-shadow:0 0 0 4px rgba(216,58,102,.08)}
    textarea{min-height:120px;resize:vertical}
    .split{
      display:grid;grid-template-columns:1fr .85fr;gap:16px;align-items:start
    }
    .contact-card{padding:22px;background:linear-gradient(180deg,#fff,#fff6f8)}
    .qr{width:160px;border-radius:18px;border:1px solid #edd8de;box-shadow:var(--shadow-2)}
    footer{
      padding:26px 0 30px;background:#fff1f4;border-top:1px solid #eed8df;color:#4b3b41
    }
    footer a{color:#9d2950}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
    .footer-links a{padding:8px 10px;border-radius:999px;background:#fff;border:1px solid #ecd6dc}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:30;display:grid;gap:10px
    }
    .floating a,.backtop{
      display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:16px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 16px 30px rgba(216,58,102,.25);border:none;cursor:pointer
    }
    .backtop{opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s ease}
    .backtop.show{opacity:1;transform:translateY(0);pointer-events:auto}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #eed9df;color:#5f4a51}
    .service-network{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .service-node{padding:16px;border-radius:18px;background:#fff;border:1px solid #efd9df}
    .mobile-only{display:none}
    .section-title{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}
    .section-title .desc{max-width:64ch}
    .anchor-pad{scroll-margin-top:92px}
    .thin{font-weight:500;color:var(--muted)}
    @media (max-width: 980px){
      .hero-wrap,.split,.footer-grid,.grid-4,.grid-3,.reviews,.articles,.grid-2,.stats,.service-network{grid-template-columns:1fr}
      .nav-links{display:none}
      .nav-links.open{display:flex;position:absolute;left:16px;right:16px;top:70px;background:#fff;padding:14px;border:1px solid #edd8de;border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}
      .menu-toggle{display:inline-flex}
      .desktop-actions{display:none}
      .mobile-only{display:inline-flex}
      .mini-metrics,.field-grid{grid-template-columns:1fr}
      section{padding:50px 0}
      .hero{padding-top:26px}
    }