:root{
      --bg:#fff8f0;
      --panel:#ffffff;
      --panel-2:#fff2e4;
      --text:#1f2530;
      --muted:#5f6572;
      --brand:#ff6a00;
      --brand-2:#ff8a1f;
      --line:#f0ddc8;
      --shadow:0 18px 45px rgba(255,106,0,.10);
      --shadow-2:0 10px 28px rgba(33,38,54,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at top left, rgba(255,138,31,.12), transparent 28%),
      radial-gradient(circle at 85% 10%, rgba(255,106,0,.08), transparent 20%),
      linear-gradient(180deg, #fff8f0 0%, #fffdf9 45%, #fff8f0 100%);
      color:var(--text);line-height:1.6}
    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:60;background:rgba(255,251,246,.86);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(240,221,200,.8)}
    .header-inner{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}
    .ai-page-logo{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px;box-shadow:var(--shadow-2)}
    .brand h2{font-size:18px;margin:0;line-height:1.15}
    .brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px;font-size:14px}
    .nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:14px;color:#36404f;padding:8px 10px;border-radius:999px}
    .nav a:hover{background:#fff1e2;color:#d65100}
    .home-link{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff!important;box-shadow:0 10px 20px rgba(255,106,0,.22)}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;align-items:stretch}
    .hero-main,.hero-side,.card,.faq-item,.review,.metric,.price-item,.timeline-item,.compare-wrap,.form-card,.info-card,.article-card{background:var(--panel);border:1px solid rgba(240,221,200,.9);border-radius:var(--radius);box-shadow:var(--shadow-2)}
    .hero-main{padding:28px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{content:"";position:absolute;border-radius:999px;background:rgba(255,106,0,.08)}
    .hero-main:before{width:220px;height:220px;right:-90px;top:-70px}
    .hero-main:after{width:140px;height:140px;right:120px;bottom:-60px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--panel-2);color:#b24600;border:1px solid #ffd4ae;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}
    h1{font-size:clamp(30px,4vw,54px);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .lead{color:var(--muted);font-size:16px;max-width:62ch;margin:0 0 18px}
    .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:14px;padding:12px 18px;font-weight:700;font-size:15px;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 26px rgba(255,106,0,.2)}
    .btn-secondary{background:#fff;color:#c44e00;border-color:#ffc89a}
    .btn:hover,.nav a:hover,.card:hover,.review:hover,.article-card:hover,.metric:hover,.price-item:hover,.timeline-item:hover,.info-card:hover{transform:translateY(-3px)}
    .hero-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:22px}
    .metric{padding:16px;background:linear-gradient(180deg,#fff 0%,#fff8f0 100%)}
    .metric strong{display:block;font-size:22px;color:#1b2430}
    .metric span{font-size:13px;color:var(--muted)}
    .hero-side{padding:18px;display:grid;gap:12px}
    .side-quote{background:linear-gradient(135deg,#fff4e5,#fff);border:1px solid #ffd9b8;border-radius:16px;padding:16px}
    .side-quote h3{margin:0 0 8px;font-size:18px}
    .side-quote p{margin:0;color:var(--muted);font-size:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 11px;background:#fff7ef;border:1px solid #f4d8be;border-radius:999px;font-size:13px;color:#8e4a12}
    .section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:66ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .card{padding:18px;transition:transform .25s ease,box-shadow .25s ease}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted);margin:0}
    .card ul{margin:10px 0 0;padding-left:18px}
    .feature-pill{display:inline-block;margin-bottom:10px;padding:6px 10px;border-radius:999px;background:#fff1df;color:#c65100;font-size:12px;font-weight:700}
    .media-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
    .ai-page-image{width:100%;height:auto;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-2)}
    .table-wrap{overflow-x:auto;border-radius:18px}
    table{width:100%;border-collapse:collapse;background:#fff}
    th,td{padding:14px 12px;border-bottom:1px solid #f1dfcb;text-align:left;vertical-align:top;font-size:14px}
    th{background:#fff6ee;color:#9a4e10}
    .rating{color:#e16c00;font-weight:700}
    .compare-badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#fff0df;color:#be5600;font-weight:700;font-size:12px}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{position:relative}
    .step .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:700;margin-bottom:12px}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;margin-bottom:10px;color:var(--muted);font-size:13px}
    .stars{color:#ff8a1f;font-size:15px;letter-spacing:1px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;background:none;border:0;padding:18px;text-align:left;font-size:16px;font-weight:700;color:var(--text);display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;padding:0 18px;color:var(--muted);transition:max-height .28s ease,padding .28s ease}
    .faq-item.active .faq-a{max-height:180px;padding:0 18px 18px}
    .faq-item.active .faq-q .arrow{transform:rotate(180deg)}
    .arrow{transition:transform .25s ease}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .article-card{padding:18px}
    .article-card .label{color:#b25100;font-size:12px;font-weight:700}
    .article-card h3{margin:8px 0 8px;font-size:17px}
    .article-card p{margin:0;color:var(--muted)}
    .form-card{padding:18px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field label{font-size:14px;font-weight:700}
    input,select,textarea{width:100%;padding:12px 14px;border:1px solid #e8d4be;border-radius:12px;background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:118px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff9a44;box-shadow:0 0 0 4px rgba(255,138,31,.12)}
    .form-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
    .footer{padding:26px 0 34px;margin-top:10px;border-top:1px solid rgba(240,221,200,.9)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .8fr;gap:14px}
    .footer a{color:#3d4b5a}
    .footer a:hover{color:#d65b00}
    .small{font-size:13px;color:var(--muted)}
    .floating{position:fixed;right:16px;bottom:16px;z-index:70;display:grid;gap:10px}
    .float-btn{width:48px;height:48px;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(255,106,0,.25);border:0;cursor:pointer}
    .float-panel{position:fixed;right:16px;bottom:78px;width:min(90vw,300px);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:14px;display:none}
    .float-panel.show{display:block}
    .qrcode{width:130px;height:130px;object-fit:cover;border-radius:14px;border:1px solid var(--line);background:#fff}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .timeline-item{padding:16px}
    .timeline-item strong{display:block;margin-bottom:8px}
    .info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .price-item{padding:18px;background:linear-gradient(180deg,#fff 0%,#fff7ef 100%)}
    .price-item h3{margin:0 0 8px}
    .price-item .money{font-size:28px;font-weight:800;color:#1f2530}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .list-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 16px;padding-left:18px;color:var(--muted)}
    .scroll-top{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.steps,.review-grid,.articles,.footer-grid,.timeline,.info-grid,.split,.media-row{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav{display:none;width:100%;padding:8px 0 0;justify-content:flex-start}
      .nav.show{display:flex}
      .header-inner{flex-wrap:wrap}
      .hero-main{padding:22px}
      .section-head{align-items:flex-start;flex-direction:column}
    }
    @media (max-width: 640px){
      .container{width:min(100% - 24px, var(--container))}
      h1{font-size:30px}
      .lead{font-size:15px}
      .hero-metrics{grid-template-columns:1fr}
      .cta-row,.form-actions{flex-direction:column}
      .btn{width:100%}
      .list-cols{grid-template-columns:1fr}
      .float-panel{width:min(92vw,300px)}
    }
    .reveal{opacity:0;transform:translateY(14px);transition:.65s ease}
    .reveal.in{opacity:1;transform:translateY(0)}