:root{
      --bg:#fff9e8;
      --panel:#ffffff;
      --panel-2:#fff3c4;
      --line:#ead9a3;
      --text:#1f2a37;
      --muted:#5a6472;
      --brand:#f5b700;
      --brand-2:#ffcf33;
      --accent:#ff8a00;
      --shadow:0 18px 40px rgba(94,67,0,.10);
      --radius:20px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(245,183,0,.16), transparent 30%),
        radial-gradient(circle at top right, rgba(255,138,0,.10), transparent 28%),
        linear-gradient(180deg, #fffdf6 0%, #fff8df 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(255,249,232,.82);
      border-bottom:1px solid rgba(234,217,163,.7);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:12px 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;border:1px solid var(--line);padding:6px;box-shadow:0 8px 20px rgba(0,0,0,.05)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;padding:10px 12px;border-radius:12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#2c3642;padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover{background:#fff0b8;color:#121826}
    .hero{
      padding:34px 0 20px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:stretch;
    }
    .hero-main,.hero-side,.card,.section,.quote,.faq-item,.table-wrap,.form-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(234,217,163,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main::before,.hero-main::after{
      content:"";position:absolute;border-radius:50%;pointer-events:none;
      background:linear-gradient(135deg, rgba(245,183,0,.22), rgba(255,138,0,.05));
      filter:blur(2px);
    }
    .hero-main::before{width:220px;height:220px;right:-80px;top:-60px}
    .hero-main::after{width:160px;height:160px;right:120px;bottom:-70px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff3bf;color:#714e00;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(32px,5vw,54px);line-height:1.06;letter-spacing:-.02em}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:62ch}
    .cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:14px;border:1px solid transparent;
      font-weight:700;font-size:15px;transition:.22s ease;cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#1a1a1a;box-shadow:0 14px 28px rgba(245,183,0,.24)}
    .btn-primary:hover{transform:translateY(-2px);filter:saturate(1.03)}
    .btn-secondary{background:#fff;color:var(--text);border-color:var(--line)}
    .btn-secondary:hover{background:#fff7d0;transform:translateY(-2px)}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{
      padding:14px;background:linear-gradient(180deg,#fff 0%, #fffbea 100%);
      border:1px solid #f0dfaa;border-radius:16px
    }
    .mini strong{display:block;font-size:18px}
    .mini span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .hero-side{padding:20px;display:grid;gap:14px}
    .panel{
      padding:16px;border-radius:18px;background:linear-gradient(180deg,#fffef8,#fff4cf);border:1px solid #f0dfaa
    }
    .panel h3,.section h2{margin:0 0 10px;font-size:22px}
    .panel p,.section p{margin:0;color:var(--muted);line-height:1.8}
    .tag-cloud{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
    .tag{font-size:13px;padding:8px 11px;border-radius:999px;background:#fff;border:1px solid #ead9a3;color:#374151}
    .img-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
    .img-row .ai-page-image{border-radius:14px;aspect-ratio:1/1;object-fit:cover;border:1px solid #ead9a3}
    .section{padding:24px;margin-top:18px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .card{padding:18px;transition:.22s ease}
    .card:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(94,67,0,.14)}
    .card h3{margin:8px 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.75}
    .badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#fff1b2;color:#6e5200;font-size:12px;font-weight:700}
    .metrics .card strong{font-size:28px;display:block;margin-top:14px}
    .steps{counter-reset:s}
    .steps .card{position:relative;padding-top:22px}
    .steps .card::before{
      counter-increment:s;content:"0" counter(s);
      position:absolute;top:14px;right:14px;font-size:12px;font-weight:700;color:#8a6400;background:#fff3c8;border:1px solid #f0dfaa;padding:6px 10px;border-radius:999px
    }
    .compare-table{width:100%;border-collapse:collapse;min-width:780px;background:#fff}
    .compare-table th,.compare-table td{border:1px solid #ead9a3;padding:14px 12px;text-align:left;vertical-align:top;line-height:1.7}
    .compare-table th{background:#fff4cd}
    .table-wrap{overflow:auto}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:flex;gap:14px;padding:14px;border-radius:16px;background:linear-gradient(180deg,#fff,#fff8de);border:1px solid #efdfae}
    .dot{width:12px;height:12px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--accent),var(--brand))}
    .reviews .card{display:grid;gap:10px}
    .quote{
      padding:18px;display:grid;gap:10px;background:linear-gradient(180deg,#fff,#fff9e5)
    }
    .quote strong{font-size:16px}
    .quote span{color:var(--muted);font-size:13px}
    .faq-item{overflow:hidden}
    .faq-btn{
      width:100%;background:none;border:0;padding:18px 18px;text-align:left;font-size:16px;font-weight:700;color:var(--text);
      display:flex;justify-content:space-between;gap:16px;align-items:center;cursor:pointer
    }
    .faq-panel{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px}
    .faq-item.open .faq-panel{padding-bottom:18px;max-height:220px}
    .faq-panel p{margin:0;color:var(--muted);line-height:1.8}
    .form-card{padding:20px}
    form{display:grid;gap:12px}
    .field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    label{display:grid;gap:8px;font-size:14px;font-weight:700;color:#2a3340}
    input,select,textarea{
      width:100%;border:1px solid #dfcf9f;border-radius:14px;background:#fff;padding:13px 14px;font:inherit;color:var(--text);outline:none
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#d39b00;box-shadow:0 0 0 4px rgba(245,183,0,.14)}
    .footer{
      margin-top:18px;padding:22px 0 26px;border-top:1px solid rgba(234,217,163,.9);background:#fff8df;color:#243041
    }
    .footer a{color:#20324b}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .footer small{color:#556171}
    .floating{
      position:fixed;right:16px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      display:inline-flex;align-items:center;justify-content:center;padding:12px 14px;border-radius:999px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#1a1a1a;font-weight:800;box-shadow:0 14px 26px rgba(245,183,0,.28)
    }
    .float-btn.secondary{background:#fff;border:1px solid var(--line)}
    .backtop{
      position:fixed;right:16px;bottom:132px;z-index:60;opacity:0;pointer-events:none;transition:.2s;
      background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 13px;box-shadow:var(--shadow)
    }
    .backtop.show{opacity:1;pointer-events:auto}
    .scroll-x{overflow:auto}
    .subtle{color:var(--muted)}
    .help-list{display:grid;gap:10px}
    .help-list a{padding:12px 14px;border-radius:14px;background:#fff;border:1px solid #ead9a3;display:flex;justify-content:space-between;gap:12px}
    .columns-2{columns:2;column-gap:18px}
    .columns-2 .tag{display:inline-flex;margin:0 8px 8px 0}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.two-col,.footer-grid{grid-template-columns:1fr}
      .hero-meta{grid-template-columns:1fr}
      .field-grid{grid-template-columns:1fr}
      .columns-2{columns:1}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 2px}
      .nav-links.open{display:flex;flex-direction:column;align-items:flex-start;background:#fff9e8;border:1px solid #ead9a3;border-radius:16px;padding:12px}
      .nav{flex-wrap:wrap}
    }