:root{
      --bg:#fff9e8;
      --panel:#ffffff;
      --panel-2:#fff4c7;
      --line:#ead79a;
      --text:#222222;
      --muted:#626262;
      --brand:#f4b400;
      --brand-2:#ffcc33;
      --brand-deep:#c98400;
      --shadow:0 18px 40px rgba(135, 92, 0, .10);
      --radius:22px;
      --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(255,208,64,.32), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(255,216,116,.25), transparent 22%),
        linear-gradient(180deg, #fffdf6 0%, #fff8e3 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header, main, footer{position:relative}
    .topbar{
      position:sticky; top:0; z-index:30;
      backdrop-filter: blur(12px);
      background:rgba(255, 249, 232, .88);
      border-bottom:1px solid rgba(234,215,154,.7);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      min-height:74px;
    }
    .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); box-shadow:0 8px 24px rgba(0,0,0,.05)}
    .brand h1{font-size:18px; margin:0; line-height:1.1}
    .brand p{margin:4px 0 0; color:var(--muted); font-size:12px}
    .nav-actions{display:flex; align-items:center; gap:10px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links{display:flex; align-items:center; gap:14px; flex-wrap:wrap}
    .nav-links a{font-size:14px; color:#3a3a3a; padding:8px 10px; border-radius:999px}
    .nav-links a:hover{background:rgba(244,180,0,.12); color:#111}
    .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; cursor:pointer;
      transition:.25s ease; box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#1f1600; box-shadow:0 10px 24px rgba(244,180,0,.18)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 14px 26px rgba(244,180,0,.24)}
    .btn-ghost{background:#fff; color:#2b2b2b; border-color:var(--line)}
    .btn-ghost:hover{border-color:#d8b95c; transform:translateY(-2px)}
    .menu-btn{display:none}
    .hero{
      padding:34px 0 18px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.25fr .75fr; gap:22px; align-items:stretch;
    }
    .hero-card, .panel{
      background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,249,232,.96));
      border:1px solid rgba(234,215,154,.8);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-card{padding:30px; position:relative; overflow:hidden}
    .hero-card:before{
      content:""; position:absolute; inset:auto -10% -30% auto; width:320px; height:320px;
      background:radial-gradient(circle, rgba(244,180,0,.22), transparent 65%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px; border-radius:999px;
      background:rgba(244,180,0,.12); color:#7a5200; font-weight:700; font-size:13px;
      border:1px solid rgba(244,180,0,.18);
    }
    .hero h2{margin:16px 0 12px; font-size:clamp(30px,5vw,54px); line-height:1.06; letter-spacing:-.03em}
    .hero p{margin:0; color:var(--muted); font-size:16px; line-height:1.8; max-width:62ch}
    .hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin:22px 0}
    .hero-stats{
      display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-top:22px;
    }
    .stat{
      padding:16px; background:rgba(255,255,255,.88); border:1px solid rgba(234,215,154,.75); border-radius:18px;
    }
    .stat strong{display:block; font-size:22px}
    .stat span{display:block; color:var(--muted); font-size:12px; margin-top:6px; line-height:1.5}
    .side-stack{display:grid; gap:16px}
    .side-card{padding:20px}
    .side-card h3{margin:0 0 10px; font-size:18px}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag-cloud span{
      padding:8px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); font-size:13px; color:#444
    }
    section{padding:18px 0}
    .section-head{display:flex; justify-content:space-between; align-items:flex-end; gap:16px; margin-bottom:14px}
    .section-head h3{margin:0; font-size:28px}
    .section-head p{margin:0; color:var(--muted); max-width:70ch; line-height:1.75}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .card{padding:20px; border-radius:20px; background:rgba(255,255,255,.96); border:1px solid rgba(234,215,154,.78); box-shadow:0 10px 26px rgba(138,96,0,.07)}
    .card h4{margin:0 0 10px; font-size:18px}
    .card p, .card li{color:var(--muted); line-height:1.75}
    .feature{
      display:flex; flex-direction:column; gap:12px; min-height:100%;
    }
    .icon{
      width:44px; height:44px; border-radius:14px; display:grid; place-items:center;
      background:linear-gradient(135deg, rgba(244,180,0,.18), rgba(255,204,51,.35));
      color:#7b5400; font-weight:800;
    }
    .steps{counter-reset:step}
    .step::before{
      counter-increment:step;
      content:counter(step, decimal-leading-zero);
      display:inline-block; margin-bottom:10px; color:#8d5f00; font-weight:800; letter-spacing:.06em;
    }
    .table-wrap{overflow:auto; border-radius:20px; border:1px solid rgba(234,215,154,.78); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:760px; background:#fff}
    th,td{padding:14px 16px; border-bottom:1px solid #f0e2ba; text-align:left; vertical-align:top}
    th{background:#fff8df; font-size:14px}
    td{font-size:14px; color:#444}
    .highlight{background:#fff5c4}
    .accordion{display:grid; gap:12px}
    details{background:#fff; border:1px solid rgba(234,215,154,.78); border-radius:16px; padding:0 16px; box-shadow:0 8px 18px rgba(0,0,0,.04)}
    summary{cursor:pointer; list-style:none; padding:16px 0; font-weight:700}
    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{position:relative}
    .stars{color:#d58c00; letter-spacing:2px; font-size:16px; margin-bottom:10px}
    .quote{font-size:15px; line-height:1.8; color:#3f3f3f}
    .meta{margin-top:12px; color:var(--muted); font-size:13px}
    .content-list{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .article{display:flex; gap:14px; align-items:flex-start; padding:16px; border-radius:18px; background:#fff; border:1px solid rgba(234,215,154,.75)}
    .article .badge{min-width:44px; height:44px; border-radius:14px; background:rgba(244,180,0,.14); display:grid; place-items:center; font-weight:800; color:#7a5200}
    .article h4{margin:0 0 6px; font-size:16px}
    .form{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px
    }
    .field{display:flex; flex-direction:column; gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px; font-weight:700}
    input,select,textarea{
      width:100%; border:1px solid #e2cf92; border-radius:14px; background:#fff; color:#222;
      padding:13px 14px; font:inherit; outline:none; transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:#d6a600; box-shadow:0 0 0 4px rgba(244,180,0,.12)}
    textarea{min-height:120px; resize:vertical}
    .submit-row{grid-column:1/-1; display:flex; gap:12px; align-items:center; flex-wrap:wrap}
    .footer{
      margin-top:16px; padding:24px 0 32px;
      border-top:1px solid rgba(234,215,154,.8);
      background:rgba(255,249,232,.86);
      color:#2b2b2b;
    }
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:20px}
    .footer small, .footer a, .footer p{color:#3f3f3f}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 12px; border-radius:999px; border:1px solid var(--line); background:#fff}
    .qrcode{display:flex; gap:14px; align-items:center; padding:16px; background:#fff; border:1px solid var(--line); border-radius:18px}
    .qrcode img{width:96px; height:96px; object-fit:cover; border-radius:14px; border:1px solid var(--line)}
    .float-tools{
      position:fixed; right:16px; bottom:16px; z-index:40; display:grid; gap:10px;
    }
    .float-tools a, .float-tools button{
      border:none; cursor:pointer; width:48px; height:48px; border-radius:16px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#201500; box-shadow:0 14px 28px rgba(244,180,0,.22)
    }
    .float-tools .secondary{background:#fff; border:1px solid var(--line)}
    .scroll-in{opacity:0; transform:translateY(16px); transition:.7s ease}
    .scroll-in.visible{opacity:1; transform:none}
    .gallery{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .gallery img{width:100%; aspect-ratio:1/1; object-fit:cover; border-radius:18px; border:1px solid rgba(234,215,154,.8); background:#fff}
    .wide-gallery{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .wide-gallery img{width:100%; aspect-ratio:16/9; object-fit:cover; border-radius:18px; border:1px solid rgba(234,215,154,.8); background:#fff}
    .timeline{display:grid; gap:12px}
    .timeline-item{display:grid; grid-template-columns:88px 1fr; gap:14px; align-items:start; padding:16px; background:#fff; border:1px solid rgba(234,215,154,.78); border-radius:18px}
    .timeline-item strong{color:#8a5e00}
    .mobile-only{display:none}
    @media (max-width: 960px){
      .hero-grid,.grid-3,.grid-4,.reviews,.footer-grid,.content-list,.gallery,.wide-gallery{grid-template-columns:1fr}
      .hero-stats{grid-template-columns:repeat(2,1fr)}
      .section-head{flex-direction:column; align-items:flex-start}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav-actions{gap:8px}
      .mobile-only{display:block}
      .nav-open .nav-links{
        display:flex; position:absolute; left:0; right:0; top:74px; padding:14px 16px 18px; flex-direction:column; align-items:flex-start;
        background:rgba(255,249,232,.98); border-bottom:1px solid rgba(234,215,154,.8)
      }
      .nav-open .nav{position:relative}
    }
    @media (max-width: 680px){
      .hero-card,.card,.side-card{padding:18px}
      .hero{padding-top:18px}
      .hero-actions,.submit-row,.nav-actions{width:100%}
      .btn{width:100%}
      .hero-stats{grid-template-columns:1fr}
      .form{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr}
    }