:root{
      --bg:#fffaf6;
      --panel:#ffffff;
      --panel-2:#fff4ef;
      --text:#1f2937;
      --muted:#5f6775;
      --line:#f0ddd3;
      --accent:#e53935;
      --accent-2:#ff6b4a;
      --accent-3:#c81e1e;
      --shadow:0 18px 45px rgba(199, 42, 28, .12);
      --radius:18px;
      --radius-sm:14px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(229,57,53,.10), transparent 26%),
        radial-gradient(circle at 90% 14%, rgba(255,107,74,.10), transparent 24%),
        linear-gradient(180deg, #fffaf6 0%, #fff 46%, #fff8f4 100%);
      line-height:1.7;
    }
    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:50;
      background:rgba(255,250,246,.88);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(240,221,211,.9);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:74px;padding:10px 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:4px;box-shadow:0 10px 20px rgba(229,57,53,.08)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:18px;line-height:1.2}
    .brand-text span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#374151;padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover{background:#fff;color:var(--accent);box-shadow:0 8px 20px rgba(229,57,53,.10)}
    .nav-cta{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;font-size:14px;cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px);box-shadow:0 14px 24px rgba(229,57,53,.16)}
    .btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .menu-btn{display:none}
    main{overflow:hidden}
    section{padding:72px 0}
    .hero{padding:40px 0 54px}
    .hero-grid{
      display:grid;grid-template-columns:1.18fr .82fr;gap:24px;align-items:stretch
    }
    .hero-card,.info-card,.service-card,.panel,.quote-card,.timeline-card,.faq-item,.form-card,.case-card,.compare-card,.article-card,.price-card{
      background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-card{padding:34px 32px;position:relative;overflow:hidden}
    .hero-card:before{
      content:"";position:absolute;inset:auto -24px -28px auto;width:220px;height:220px;border-radius:50%;
      background:radial-gradient(circle, rgba(229,57,53,.18), transparent 68%);
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;background:#fff0ec;color:#b42318;border:1px solid #ffd6cc;font-size:13px;font-weight:700;
    }
    h1{margin:16px 0 14px;font-size:clamp(32px,4vw,54px);line-height:1.08;letter-spacing:-.02em}
    .lead{font-size:17px;color:#404755;max-width:42rem;margin:0 0 22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .point{
      padding:14px;border-radius:16px;background:linear-gradient(180deg,#fff, #fff8f5);
      border:1px solid #f2dfd6
    }
    .point strong{display:block;font-size:18px;color:var(--accent-3)}
    .point span{display:block;font-size:13px;color:var(--muted)}
    .hero-side{display:grid;gap:16px}
    .hero-side .info-card{padding:22px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .metric{
      background:linear-gradient(180deg,#fff,#fff8f5);
      border:1px solid #f1ddd3;border-radius:16px;padding:16px
    }
    .metric b{display:block;font-size:24px;color:var(--accent-3);line-height:1.1}
    .metric span{display:block;font-size:13px;color:var(--muted);margin-top:6px}
    .section-title{margin-bottom:24px}
    .section-title h2{margin:0 0 10px;font-size:clamp(26px,3vw,38px);line-height:1.15}
    .section-title p{margin:0;color:var(--muted);max-width:62rem}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .service-card,.case-card,.article-card,.compare-card,.price-card,.panel{padding:22px}
    .service-card h3,.case-card h3,.article-card h3,.compare-card h3,.price-card h3{margin:10px 0 8px;font-size:18px}
    .service-card p,.case-card p,.article-card p,.compare-card p,.price-card p,.panel p{margin:0;color:var(--muted)}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(229,57,53,.12),rgba(255,107,74,.12));
      color:var(--accent-3);font-size:20px;font-weight:800
    }
    .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:#374151
    }
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:step}
    .step{padding:22px;position:relative}
    .step:before{
      counter-increment:step;content:counter(step);
      position:absolute;top:18px;right:18px;font-size:34px;font-weight:800;color:rgba(229,57,53,.12)
    }
    .step .mini{color:var(--accent);font-weight:800;font-size:13px}
    .step h3{margin:8px 0 8px;font-size:18px}
    .compare-wrap{overflow:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:16px 14px;border-bottom:1px solid #f1e2db;text-align:left;vertical-align:top}
    th{background:#fff6f2;font-size:14px}
    td{font-size:14px;color:#374151}
    .rating{display:flex;gap:4px;color:#f59e0b;font-size:18px}
    .pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:#fff0ec;color:#b42318;border:1px solid #ffd7cd;font-size:12px;font-weight:700}
    .split{display:grid;grid-template-columns:1.02fr .98fr;gap:16px;align-items:start}
    .timeline{display:grid;gap:14px}
    .timeline-card{padding:18px 20px;display:flex;gap:14px;align-items:flex-start}
    .dot{width:12px;height:12px;border-radius:50%;margin-top:8px;background:linear-gradient(135deg,var(--accent),var(--accent-2));flex:0 0 auto}
    .timeline-card h3{margin:0 0 6px;font-size:17px}
    .quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .quote-card{padding:22px}
    .quote-card .who{margin-top:14px;color:var(--accent);font-weight:800;font-size:13px}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article-card ul{margin:12px 0 0;padding-left:18px;color:var(--muted)}
    .faq{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:14px;
      padding:18px 20px;background:#fff;border:0;color:var(--text);font-size:16px;font-weight:700;text-align:left;cursor:pointer
    }
    .faq-a{display:none;padding:0 20px 18px;color:var(--muted)}
    .faq-item.active .faq-a{display:block}
    .faq-item.active .faq-q{background:#fff7f4}
    .form-card{padding:24px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:grid;gap:8px}
    label{font-size:14px;font-weight:700;color:#374151}
    input,select,textarea{
      width:100%;border:1px solid #e6d7ce;border-radius:14px;background:#fff;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:border-color .2s, box-shadow .2s
    }
    textarea{min-height:124px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#f08b7c;box-shadow:0 0 0 4px rgba(229,57,53,.08)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px}
    .fine{font-size:13px;color:var(--muted)}
    .contact-box{padding:24px;background:linear-gradient(180deg,#fff,#fff7f3);border:1px solid #f1ddd3;border-radius:var(--radius);box-shadow:var(--shadow)}
    .contact-list{display:grid;gap:10px;margin-top:14px}
    .contact-item{display:flex;justify-content:space-between;gap:14px;padding:12px 14px;border-radius:14px;background:#fff;border:1px solid #f0ddd3}
    footer{
      padding:28px 0 34px;border-top:1px solid #f0ddd3;background:#fff8f4;color:#2f3744
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a,.footer-mini a{display:inline-flex;padding:7px 10px;border-radius:999px;background:#fff;border:1px solid #e9d7cd;color:#374151;font-size:13px}
    .footer-mini{display:flex;flex-wrap:wrap;gap:10px}
    .subfooter{margin-top:18px;padding-top:16px;border-top:1px solid #f0ddd3;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#67707c;font-size:13px}
    .float-service{
      position:fixed;right:16px;bottom:18px;z-index:60;
      display:grid;gap:10px
    }
    .float-service a,.float-service button{
      width:52px;height:52px;border-radius:16px;border:1px solid #f0ddd3;background:#fff;
      box-shadow:0 12px 24px rgba(15,23,42,.10);display:grid;place-items:center;cursor:pointer;color:var(--accent-3)
    }
    .float-service a:hover,.float-service button:hover{transform:translateY(-1px)}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease, transform .65s ease}
    .reveal.show{opacity:1;transform:translateY(0)}
    .hero .ai-page-home-link{
      display:inline-flex;align-items:center;justify-content:center;
      padding:12px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:800
    }
    .hero-images{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px}
    .hero-images img{border-radius:16px;border:1px solid var(--line);box-shadow:0 12px 24px rgba(15,23,42,.08);object-fit:cover;width:100%;aspect-ratio:1/1}
    @media (max-width: 1080px){
      .hero-grid,.split,.footer-grid,.grid-4,.steps,.quotes,.articles,.faq{grid-template-columns:1fr 1fr}
      .grid-3{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 780px){
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:inline-flex}
      .hero-grid,.split,.footer-grid,.grid-4,.grid-3,.grid-2,.steps,.quotes,.articles,.faq,.hero-points,.metric-grid,.form-grid{grid-template-columns:1fr}
      .hero-card{padding:24px}
      .hero-side{gap:12px}
      .section{padding:56px 0}
      section{padding:58px 0}
      .hero{padding-top:28px}
      .hero-images{grid-template-columns:1fr 1fr}
      .nav-open .nav-links{
        display:flex;position:absolute;left:16px;right:16px;top:74px;flex-direction:column;align-items:flex-start;
        background:#fff;border:1px solid var(--line);padding:14px;border-radius:18px;box-shadow:var(--shadow)
      }
      .footer-grid{gap:14px}
    }