:root{
      --red:#e93532;
      --red-dark:#b91f28;
      --coral:#ff6652;
      --ink:#24242b;
      --muted:#6d6d78;
      --line:#eadfdb;
      --paper:#fffaf8;
      --soft:#fff0ec;
      --cream:#fff7f0;
      --white:#ffffff;
      --shadow:0 18px 50px rgba(104,38,30,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:
        linear-gradient(180deg,#fffaf8 0%,#fff 38%,#fff6f1 100%);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;
      background:rgba(255,250,248,.94);
      border-bottom:1px solid rgba(234,223,219,.8);
      backdrop-filter:blur(16px);
    }
    .nav-wrap{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:12px;flex:none}
    .ai-page-logo{width:42px;height:42px;object-fit:contain}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:0}
    .brand-sub{display:block;font-size:11px;color:var(--muted);line-height:1.2}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:7px 10px;font-size:13px;color:#55515a;transition:.25s}
    .nav-links a:hover{color:var(--red)}
    .nav-cta,.primary-btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:0;border-radius:999px;background:var(--red);color:#fff;
      padding:12px 20px;font-weight:700;cursor:pointer;
      box-shadow:0 9px 18px rgba(233,53,50,.22);transition:.25s;
    }
    .nav-cta{margin-left:12px;padding:10px 16px;font-size:13px}
    .nav-cta:hover,.primary-btn:hover{background:var(--red-dark);transform:translateY(-2px)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;padding:9px 11px;font-size:18px}
    .hero{
      position:relative;overflow:hidden;padding:90px 0 70px;
      background:
        linear-gradient(135deg,#fff8f4 0%,#ffe4dc 53%,#fff2ea 100%);
      border-bottom:1px solid #f2d6cf;
    }
    .hero:before,.hero:after{
      content:"";position:absolute;border:1px solid rgba(233,53,50,.16);
      transform:rotate(26deg);pointer-events:none
    }
    .hero:before{width:270px;height:270px;right:-80px;top:42px;border-radius:42px}
    .hero:after{width:160px;height:160px;left:-70px;bottom:-70px;border-radius:50%}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:58px;align-items:center}
    .eyebrow,.section-kicker{color:var(--red);font-size:13px;font-weight:800;letter-spacing:2px}
    h1{font-size:clamp(38px,5vw,68px);line-height:1.12;margin:15px 0 20px;letter-spacing:0}
    .hero p{font-size:18px;color:#5e4f50;max-width:680px;margin:0 0 30px}
    .actions{display:flex;flex-wrap:wrap;gap:12px}
    .secondary-btn{
      display:inline-flex;align-items:center;justify-content:center;
      border:1px solid #dca7a0;background:rgba(255,255,255,.65);
      color:var(--red-dark);border-radius:999px;padding:11px 19px;font-weight:700;
      transition:.25s
    }
    .secondary-btn:hover{background:#fff;transform:translateY(-2px)}
    .hero-panel{border-left:3px solid var(--red);padding:22px 0 22px 28px}
    .hero-panel strong{display:block;font-size:25px;line-height:1.3;margin-bottom:12px}
    .hero-panel p{font-size:15px;margin:0;color:#6b5352}
    .signal-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:25px}
    .signal{padding:15px;background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.9);border-radius:14px}
    .signal b{display:block;font-size:21px;color:var(--red-dark)}
    .signal span{font-size:12px;color:var(--muted)}
    .section{padding:82px 0}
    .section-tint{background:#fff3ee;border-top:1px solid #f5ded7;border-bottom:1px solid #f5ded7}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:8px 0 0}
    h3{line-height:1.35;margin:0 0 10px}
    .section-intro{max-width:570px;color:var(--muted);margin:0}
    .intro-layout{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
    .copy-block{font-size:17px;color:#514c53}
    .copy-block p{margin:0 0 16px}
    .highlight-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .highlight{border-left:3px solid var(--red);padding:14px 16px;background:#fff;border-radius:0 12px 12px 0;box-shadow:0 7px 22px rgba(100,40,30,.06)}
    .highlight b{display:block;margin-bottom:3px}
    .highlight span{font-size:13px;color:var(--muted)}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:24px;border:1px solid var(--line);background:#fff;border-radius:16px}
    .metric strong{display:block;font-size:27px;color:var(--red-dark);margin-bottom:4px}
    .metric span{font-size:13px;color:var(--muted)}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .service-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:.3s}
    .service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#efb4aa}
    .service-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:var(--soft);color:var(--red);font-weight:800;margin-bottom:17px}
    .service-card p,.case-card p,.review p{color:var(--muted);font-size:14px;margin:0}
    .tag-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .tag{padding:7px 12px;border-radius:999px;background:#fff;border:1px solid #efd1ca;color:#6d3b37;font-size:13px}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid #efb6ad}
    .process-step{position:relative;padding:28px 22px 0 0}
    .process-step:not(:last-child){margin-right:25px}
    .process-step:before{content:"";position:absolute;top:-10px;left:0;width:17px;height:17px;background:var(--red);border:4px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #efb6ad}
    .process-number{font-size:13px;color:var(--red);font-weight:800}
    .process-step p{color:var(--muted);font-size:14px;margin:0}
    .industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .industry-card{padding:23px;background:linear-gradient(145deg,#fff,#fff0eb);border:1px solid #f2d4cd;border-radius:15px}
    .industry-card p{margin:0;color:var(--muted);font-size:14px}
    .network{display:grid;grid-template-columns:1fr 1.2fr;gap:26px;align-items:stretch}
    .network-copy{padding:30px;background:var(--red);color:#fff;border-radius:18px}
    .network-copy .section-kicker{color:#ffd7ce}
    .network-copy p{color:#ffe9e3}
    .network-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .network-list span{padding:14px 10px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:13px}
    .comparison-wrap{overflow-x:auto}
    table{border-collapse:collapse;width:100%;min-width:720px;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
    th,td{padding:16px 17px;text-align:left;border-bottom:1px solid #f0e5e1;font-size:14px}
    th{background:#fff0eb;color:#7b2b2b;font-weight:800}
    tr:last-child td{border-bottom:0}
    .score-panel{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:23px 28px;margin-bottom:20px;background:#fff;border:1px solid #f0c9c0;border-radius:16px}
    .score{font-size:34px;color:var(--red-dark);font-weight:800}
    .stars{color:#e89b22;letter-spacing:3px;font-size:22px}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .timeline article{padding:21px;background:#fff;border-top:4px solid var(--red);box-shadow:0 8px 24px rgba(80,38,30,.06)}
    .timeline small{color:var(--red);font-weight:800}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .case-card{overflow:hidden;border:1px solid var(--line);background:#fff;border-radius:16px}
    .case-card figure{margin:0;aspect-ratio:16/8;overflow:hidden;background:#ffe6dd}
    .case-card figure img{width:100%;height:100%;object-fit:cover}
    .case-body{padding:19px}
    .case-body h3{font-size:18px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .review{padding:23px;background:#fff;border:1px solid var(--line);border-radius:15px}
    .review-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px}
    .review-head strong{font-size:15px}
    .review-head span{font-size:12px;color:var(--red)}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .article{padding:22px;background:#fff;border-left:3px solid var(--red);border-radius:0 14px 14px 0}
    .article a{font-weight:800}
    .article p{font-size:13px;color:var(--muted);margin:7px 0 0}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:11px 16px}
    details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}
    summary{cursor:pointer;font-weight:700;list-style:none;position:relative;padding-right:22px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--red);font-size:20px;top:-4px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:11px 0 0}
    .form-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:35px;align-items:start}
    .contact-panel{padding:30px;background:var(--red);color:#fff;border-radius:18px}
    .contact-panel p{color:#ffe8e2}
    .contact-line{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.23);font-size:14px}
    .contact-line:last-child{border-bottom:0}
    form{display:grid;grid-template-columns:1fr 1fr;gap:15px;background:#fff;padding:27px;border:1px solid var(--line);border-radius:17px}
    label{display:grid;gap:6px;font-size:13px;font-weight:700}
    input,select,textarea{width:100%;border:1px solid #dfd2cd;border-radius:9px;padding:12px 13px;background:#fffaf8;color:var(--ink);font:inherit;font-size:14px;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(233,53,50,.1)}
    textarea{min-height:125px;resize:vertical}
    .full{grid-column:1/-1}
    .form-note{font-size:12px;color:var(--muted);grid-column:1/-1;margin:0}
    .article-link{color:var(--red-dark);font-size:13px;font-weight:700}
    .footer{background:#281e20;color:#fff0eb;padding:50px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:28px}
    .footer h3{font-size:15px;color:#fff;margin-bottom:13px}
    .footer p,.footer a{font-size:13px;color:#d9c2bd}
    .footer a{display:block;margin:7px 0}
    .footer a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:30px;padding-top:18px;font-size:12px;color:#c7aaa5;display:flex;justify-content:space-between;gap:15px}
    .qr{width:112px;background:#fff;padding:7px;border-radius:8px;margin-top:12px}
    .float-contact{position:fixed;right:20px;bottom:22px;z-index:15;display:flex;align-items:center;gap:8px;background:var(--red);color:#fff;padding:11px 15px;border-radius:999px;box-shadow:0 10px 25px rgba(120,30,30,.25);font-size:13px;font-weight:700}
    .float-contact:hover{background:var(--red-dark)}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
    .reveal.visible{opacity:1;transform:none}
    @media(max-width:1000px){
      .nav-links a{padding:7px 6px;font-size:12px}
      .nav-cta{padding:9px 12px}
      .hero-grid,.intro-layout,.network,.form-layout{grid-template-columns:1fr}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .service-grid,.industry-grid,.case-grid,.review-grid,.article-grid{grid-template-columns:repeat(2,1fr)}
      .hero{padding-top:65px}
    }
    @media(max-width:720px){
      .container{width:min(100% - 28px,1160px)}
      .site-header{position:relative}
      .nav-wrap{min-height:68px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:14px;right:14px;top:68px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{display:block;padding:10px 12px}
      .nav-cta{margin:5px 0 0}
      .hero{padding:58px 0 50px}
      h1{font-size:39px}
      .hero p{font-size:16px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-intro{margin-top:12px}
      .highlight-list,.faq-list,.timeline{grid-template-columns:1fr}
      .metric-grid,.service-grid,.industry-grid,.case-grid,.review-grid,.article-grid{grid-template-columns:1fr}
      .process{grid-template-columns:1fr;border-top:0;border-left:2px solid #efb6ad;margin-left:8px}
      .process-step{padding:0 0 25px 24px}
      .process-step:not(:last-child){margin-right:0}
      .process-step:before{top:1px;left:-10px}
      .network-list{grid-template-columns:repeat(2,1fr)}
      .score-panel{display:block}
      form{grid-template-columns:1fr;padding:20px}
      .full{grid-column:auto}
      .form-note{grid-column:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
      .float-contact{right:14px;bottom:14px}
    }
    @media(prefers-reduced-motion:reduce){
      *,html{scroll-behavior:auto!important;transition:none!important;animation:none!important}
      .reveal{opacity:1;transform:none}
    }