:root{
      --bg:#fff8f1;
      --bg2:#fffdfb;
      --card:#ffffff;
      --text:#1f2430;
      --muted:#667085;
      --line:#f1ded0;
      --accent:#ff6a00;
      --accent2:#ff8f33;
      --shadow:0 18px 50px rgba(141, 66, 0, .10);
      --radius:22px;
      --radius-sm:16px;
      --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;background:linear-gradient(180deg,#fff7ef 0%,#fffdfb 42%,#fff7ef 100%);color:var(--text)}
    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:50;background:rgba(255,248,241,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(241,222,208,.7)}
    .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:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 20px rgba(0,0,0,.05)}
    .brand strong{display:block;font-size:16px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#344054;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover{background:#fff;color:var(--accent);box-shadow:0 6px 20px rgba(255,106,0,.12)}
    .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:12px 18px;font-weight:700;transition:.25s;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--accent),#ff8e2b);color:#fff;box-shadow:0 12px 28px rgba(255,106,0,.22)}
    .btn-primary:hover{transform:translateY(-1px);filter:saturate(1.04)}
    .btn-ghost{background:#fff;border-color:var(--line);color:#2d3748}
    .btn-ghost:hover{border-color:#ffcba1;color:var(--accent)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    main{overflow:hidden}
    .hero{padding:42px 0 24px;position:relative}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:999px;filter:blur(8px);pointer-events:none}
    .hero::before{width:280px;height:280px;background:radial-gradient(circle,rgba(255,106,0,.16),transparent 70%);left:-60px;top:30px}
    .hero::after{width:340px;height:340px;background:radial-gradient(circle,rgba(255,154,61,.14),transparent 70%);right:-80px;top:60px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:999px;color:#8a4b12;font-weight:700;font-size:13px;box-shadow:0 10px 24px rgba(255,106,0,.07)}
    h1{margin:18px 0 14px;font-size:clamp(30px,5vw,54px);line-height:1.08;letter-spacing:-.03em}
    .lead{font-size:17px;line-height:1.8;color:#445064;max-width:56ch}
    .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.86);border:1px solid var(--line);color:#5a6476;font-size:13px}
    .hero-panel{background:linear-gradient(180deg,#fff 0%,#fff7ef 100%);border:1px solid rgba(255,174,106,.35);border-radius:28px;padding:22px;box-shadow:var(--shadow)}
    .stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;transition:.25s}
    .stat:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,0,.08)}
    .stat strong{display:block;font-size:28px;line-height:1;color:var(--accent)}
    .stat span{display:block;margin-top:8px;color:#667085;font-size:13px;line-height:1.5}
    section{padding:18px 0 10px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
    .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 10px 30px rgba(103,70,39,.05);transition:.25s}
    .card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(255,106,0,.10)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,106,0,.14),rgba(255,143,51,.08));color:var(--accent);font-weight:800;margin-bottom:14px}
    .card h3{margin:0 0 10px;font-size:19px}
    .card p,.card li{color:#4b5563;line-height:1.75}
    .list{padding-left:18px;margin:0}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{position:relative}
    .step .num{font-size:13px;font-weight:800;color:var(--accent);margin-bottom:8px}
    .compare{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid #f4e6db;text-align:left;vertical-align:top}
    th{background:#fff7ef;color:#8a4b12}
    td{color:#425466}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:#fff4e9;color:#a54a00;font-size:12px;font-weight:700}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .quote{font-size:15px;line-height:1.8;color:#344054}
    .author{margin-top:14px;display:flex;justify-content:space-between;gap:10px;align-items:center;color:#667085;font-size:13px}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 18px;box-shadow:0 10px 24px rgba(103,70,39,.04)}
    summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;color:#1f2937}
    summary::-webkit-details-marker{display:none}
    details p{margin:0 0 16px;color:#4b5563;line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;background:#fff;border:1px solid var(--line);border-radius:999px;color:#586174;font-size:13px}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .article-meta{font-size:13px;color:#8a94a6;margin-bottom:10px}
    .form-wrap{display:grid;grid-template-columns:1fr .8fr;gap:18px;align-items:start}
    form{display:grid;gap:12px}
    input,select,textarea{width:100%;border:1px solid #ead9ca;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#ffb27a;box-shadow:0 0 0 4px rgba(255,106,0,.08)}
    textarea{min-height:120px;resize:vertical}
    .form-note{font-size:14px;color:var(--muted);line-height:1.8}
    .contact-list{display:grid;gap:10px}
    .contact-item{padding:14px 16px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),#ff8f33);color:#fff;box-shadow:0 14px 30px rgba(255,106,0,.25);border:none;cursor:pointer}
    .qr{display:flex;gap:14px;align-items:center}
    .qr img{width:110px;height:110px;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}
    footer{margin-top:16px;padding:26px 0 30px;background:#fff8f1;border-top:1px solid var(--line);color:#445064}
    footer a{color:#6b3f13}
    .footer-grid{display:grid;grid-template-columns:1.2fr .9fr 1fr;gap:18px}
    .mini{font-size:13px;color:#687385;line-height:1.75}
    .mobile-nav{display:none}
    .sep{height:1px;background:linear-gradient(90deg,transparent,rgba(255,106,0,.22),transparent);margin:18px 0}
    .banner-img,.square-img{border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    .case-art{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .case-art img{border-radius:18px;object-fit:cover}
    .case-art .banner-img{aspect-ratio:16/9}
    .case-art .square-img{aspect-ratio:1/1}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.timeline,.reviews,.articles,.form-wrap,.footer-grid{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      .nav-links,.nav-actions{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-nav{display:none;padding:0 0 14px}
      .mobile-nav.open{display:block}
      .mobile-nav a{display:block;padding:12px 0;border-top:1px solid rgba(241,222,208,.9);color:#344054}
      .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width: 560px){
      .container{width:min(var(--container),calc(100% - 24px))}
      h1{font-size:32px}
      .lead{font-size:16px}
      .stats{grid-template-columns:1fr}
      .hero{padding-top:28px}
      .btn{width:100%}
      .hero-cta{display:grid}
      .qr{flex-direction:column;align-items:flex-start}
    }
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}