:root{
      --bg:#f6f3ea;
      --bg2:#fffaf0;
      --card:#ffffff;
      --text:#182235;
      --muted:#5f6b7c;
      --line:#e7dfcf;
      --brand:#ff4d4f;
      --brand2:#ff8a00;
      --brand3:#6c5ce7;
      --shadow:0 18px 40px rgba(26, 35, 55, .10);
      --radius:22px;
      --radius2:16px;
      --max: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",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,77,79,.12), transparent 22%),
        radial-gradient(circle at top right, rgba(255,138,0,.14), transparent 22%),
        linear-gradient(180deg, #fffdf9 0%, var(--bg) 42%, #fbf8f2 100%);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky;top:0;z-index:60;
      backdrop-filter:saturate(180%) blur(16px);
      background:rgba(255,252,247,.82);
      border-bottom:1px solid rgba(231,223,207,.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:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;padding:5px;box-shadow:0 8px 18px rgba(0,0,0,.08)}
    .brand h1,.brand strong{margin:0;font-size:1rem;line-height:1.1}
    .brand p{margin:3px 0 0;color:var(--muted);font-size:.82rem}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.95rem;color:#2a3443;padding:8px 0;position:relative}
    .nav-links a::after{
      content:"";position:absolute;left:0;bottom:2px;width:100%;height:2px;border-radius:99px;
      background:linear-gradient(90deg,var(--brand),var(--brand2));transform:scaleX(0);transform-origin:left;transition:.2s ease;
    }
    .nav-links a:hover::after{transform:scaleX(1)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;
      display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 10px 20px rgba(255,77,79,.16);
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}
    .btn-ghost{background:#fff;color:#213047;border:1px solid var(--line);box-shadow:none}
    .btn:hover{transform:translateY(-2px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    main{display:block}
    section{padding:56px 0}
    .hero{padding:34px 0 22px}
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;
    }
    .hero-card{
      background:
        linear-gradient(135deg, rgba(255,77,79,.98), rgba(255,138,0,.96) 52%, rgba(108,92,231,.92));
      color:#fff;border-radius:32px;padding:36px;position:relative;overflow:hidden;box-shadow:var(--shadow);
      isolation:isolate;
    }
    .hero-card::before,.hero-card::after{
      content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.14);filter:blur(2px)
    }
    .hero-card::before{width:220px;height:220px;right:-60px;top:-40px}
    .hero-card::after{width:160px;height:160px;left:-50px;bottom:-40px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.24);padding:8px 14px;border-radius:999px;font-size:.92rem
    }
    .hero h2{
      margin:16px 0 14px;font-size:clamp(2rem, 4vw, 4rem);line-height:1.06;letter-spacing:-.03em
    }
    .hero p{margin:0;color:rgba(255,255,255,.92);font-size:1.03rem;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .pill{
      background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.18);border-radius:999px;
      padding:9px 12px;font-size:.9rem
    }
    .hero-side{
      display:grid;gap:16px
    }
    .info-panel,.mini-card,.section-card,.table-card,.form-card{
      background:rgba(255,255,255,.92);border:1px solid rgba(231,223,207,.9);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .info-panel{padding:24px}
    .info-panel h3,.section-head h2{margin:0 0 10px;font-size:1.5rem}
    .info-panel p,.section-head p,.muted{margin:0;color:var(--muted);line-height:1.8}
    .stats{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px
    }
    .stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff7ec);border:1px solid #f1e5cf}
    .stat strong{display:block;font-size:1.45rem}
    .stat span{color:var(--muted);font-size:.88rem}
    .hero-note{margin-top:14px;padding:14px 16px;border-radius:18px;background:#fff5f1;color:#7a2b00;border:1px solid #ffd7c5;font-weight:600}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:20px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .card{
      background:var(--card);border:1px solid rgba(231,223,207,.95);border-radius:24px;padding:22px;box-shadow:var(--shadow);
      transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 20px 42px rgba(26,35,55,.13);border-color:#f0d6b0}
    .card h3{margin:0 0 10px;font-size:1.08rem}
    .card p{margin:0;color:var(--muted);line-height:1.75}
    .icon{
      width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;
      background:linear-gradient(135deg, rgba(255,77,79,.16), rgba(255,138,0,.16));color:#d94014;font-size:1.2rem
    }
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      border:1px solid #e8ddca;background:#fff;padding:9px 12px;border-radius:999px;font-size:.92rem;color:#304057
    }
    .timeline{display:grid;gap:14px}
    .step{
      display:flex;gap:14px;align-items:flex-start;padding:18px;border-radius:20px;background:#fff;border:1px solid #eee1cc
    }
    .step .num{
      flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand2));
      color:#fff;font-weight:800;display:grid;place-items:center
    }
    .step h3{margin:0 0 6px;font-size:1.02rem}
    .step p{margin:0;color:var(--muted);line-height:1.7}
    .table-wrap{overflow:auto;border-radius:24px}
    table{width:100%;border-collapse:collapse;min-width:820px;background:#fff}
    th,td{padding:16px 14px;border-bottom:1px solid #efe5d4;text-align:left;vertical-align:top}
    th{background:#fff8ef;color:#273447;font-size:.95rem}
    td{color:#425066;line-height:1.7}
    .highlight{color:#d83c0a;font-weight:700}
    .rating{
      display:grid;gap:10px
    }
    .rating .score{
      display:flex;align-items:end;gap:12px;flex-wrap:wrap
    }
    .score strong{font-size:2.4rem;line-height:1;color:#d83c0a}
    .score span{font-weight:700;color:#273447}
    .stars{color:#ff9f1c;font-size:1.3rem;letter-spacing:2px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px}
    .review .who{font-weight:700}
    .review .role{color:var(--muted);font-size:.9rem}
    .quote{font-size:.96rem;line-height:1.8;color:#314255}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .case{padding:0;overflow:hidden}
    .case .media{
      aspect-ratio: 16 / 9; background:linear-gradient(135deg,#fff4ec,#f4ecff);display:grid;place-items:center;color:#c95800;font-weight:800
    }
    .case .body{padding:18px 20px 20px}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .article{
      padding:20px;border-radius:22px;border:1px solid #ebdfcc;background:#fff
    }
    .article .date{color:#a36d35;font-size:.88rem;margin-bottom:10px}
    .article h3{margin:0 0 10px;font-size:1.02rem}
    .article p{margin:0;color:var(--muted);line-height:1.7}
    .faq{display:grid;gap:12px}
    details{
      background:#fff;border:1px solid #e9ddca;border-radius:18px;overflow:hidden;box-shadow:0 10px 24px rgba(26,35,55,.05)
    }
    summary{
      list-style:none;cursor:pointer;padding:18px 18px 18px 20px;font-weight:700;color:#243143;display:flex;justify-content:space-between;gap:12px
    }
    summary::-webkit-details-marker{display:none}
    details p{margin:0;padding:0 20px 18px;color:var(--muted);line-height:1.8}
    details[open] summary{background:#fff7ee}
    .form-card{padding:24px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-weight:700;font-size:.94rem}
    input,select,textarea{
      width:100%;border:1px solid #d9ccb6;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text)
    }
    textarea{min-height:118px;resize:vertical}
    .full{grid-column:1 / -1}
    .form-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:14px}
    .footer{
      padding:28px 0 34px;border-top:1px solid rgba(231,223,207,.9);background:linear-gradient(180deg,#fffdf8,#f6f1e6)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .footer a{color:#21415f}
    .footer p,.footer li{color:#536071;line-height:1.8}
    .footer ul{margin:0;padding-left:18px}
    .float-box{
      position:fixed;right:18px;bottom:18px;z-index:70;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:50%;display:grid;place-items:center;border:0;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:var(--shadow);font-size:1.1rem
    }
    .float-contact{
      position:fixed;right:18px;bottom:82px;z-index:69;width:300px;max-width:calc(100vw - 36px);
      background:#fff;border:1px solid #e9ddca;border-radius:22px;box-shadow:var(--shadow);padding:16px;display:none
    }
    .float-contact.open{display:block}
    .float-contact h4{margin:0 0 10px;font-size:1.02rem}
    .float-contact .mini{display:grid;grid-template-columns:88px 1fr;gap:12px;align-items:center}
    .float-contact img{border-radius:14px;border:1px solid #eadfca;background:#fff}
    .mobile-only{display:none}
    .section-bg{position:relative}
    .section-bg::before{
      content:"";position:absolute;inset:0;background:
      linear-gradient(180deg, rgba(255,255,255,.42), rgba(255,255,255,0) 38%);
      pointer-events:none
    }
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .subtle{font-size:.92rem;color:#7a5430;background:#fff5e9;border:1px solid #f0dcc2;padding:8px 12px;border-radius:999px;display:inline-flex;align-items:center;gap:8px}
    @media (max-width: 1080px){
      .hero-grid,.grid-3,.review-grid,.case-grid,.article-list,.footer-grid{grid-template-columns:1fr}
      .grid-2{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 860px){
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid #eadfca;border-radius:18px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start;gap:10px}
      .nav-links.open{display:flex}
      .menu-toggle{display:inline-flex}
      .nav{position:relative}
      .nav-actions .btn-ghost{display:none}
      .form-grid{grid-template-columns:1fr}
      .mobile-only{display:inline-flex}
      .table-wrap{margin-right:-8px}
      section{padding:42px 0}
      .hero-card{padding:28px}
    }
    .anchor-top{position:relative;top:-88px}