:root{
      --bg:#f7f4ef;
      --bg2:#fffaf6;
      --card:#ffffff;
      --line:#eadfd5;
      --text:#1f2329;
      --muted:#5e646d;
      --brand:#cf2d1f;
      --brand2:#ff6a3d;
      --accent:#7a1f16;
      --shadow:0 18px 40px rgba(151, 57, 34, .10);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,106,61,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(207,45,31,.10), transparent 26%),
        linear-gradient(180deg, #fff 0%, var(--bg) 28%, #fdf8f2 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .skip{position:absolute;left:-9999px}
    .skip:focus{left:12px;top:12px;z-index:1000;background:#fff;padding:10px 14px;border-radius:10px}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(12px);
      background:rgba(255,250,246,.84);
      border-bottom:1px solid rgba(234,223,213,.9);
    }
    .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;border-radius:12px;object-fit:contain;background:#fff;border:1px solid var(--line);box-shadow:0 8px 18px rgba(0,0,0,.06)}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:14px;color:#2b3138;padding:8px 0;position:relative}
    .navlinks a::after{
      content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:.25s
    }
    .navlinks a:hover::after{width:100%}
    .navcta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:11px 16px;border-radius:999px;border:1px solid transparent;
      font-weight:700;font-size:14px;transition:.25s;cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 24px rgba(207,45,31,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(207,45,31,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#dfb6a2}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{
      padding:36px 0 20px;
      position:relative;
      overflow:hidden;
    }
    .hero::before,.hero::after{
      content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(2px)
    }
    .hero::before{width:220px;height:220px;background:radial-gradient(circle, rgba(255,106,61,.18), transparent 70%);top:0;right:-60px}
    .hero::after{width:180px;height:180px;background:radial-gradient(circle, rgba(207,45,31,.16), transparent 70%);left:-50px;bottom:-40px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.section-card,.glass-card,.metric,.service-card,.review,.step,.faq-item,.article-card,.contact-card,.compare-card,.case-card,.price-card,.timeline-card,.tag-cloud,.form-card{
      background:rgba(255,255,255,.82);border:1px solid rgba(234,223,213,.95);box-shadow:var(--shadow);border-radius:var(--radius)
    }
    .hero-copy{padding:32px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(207,45,31,.09);color:var(--accent);font-weight:700;font-size:13px}
    h1{margin:18px 0 14px;font-size:clamp(30px, 5vw, 54px);line-height:1.04;letter-spacing:-.03em}
    .lead{margin:0;color:#3a4048;font-size:17px;line-height:1.8;max-width:48em}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{
      padding:14px;border-radius:18px;background:linear-gradient(180deg,#fff, #fff7f2);border:1px solid #f0ddd3
    }
    .mini strong{display:block;font-size:18px}
    .mini span{color:var(--muted);font-size:13px}
    .hero-panel{padding:24px;display:flex;flex-direction:column;gap:16px;justify-content:space-between}
    .panel-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
    .panel-head h3{margin:0;font-size:20px}
    .panel-head p{margin:6px 0 0;color:var(--muted);line-height:1.6}
    .badge-row{display:flex;flex-wrap:wrap;gap:10px}
    .badge{padding:8px 12px;border-radius:999px;background:#fff3ee;border:1px solid #ffd9cd;color:#8c2d19;font-size:13px;font-weight:600}
    .hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{
      padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff8f5,#fff);border:1px solid #f2ddd4
    }
    .stat b{display:block;font-size:24px;color:var(--brand)}
    .stat small{color:var(--muted);line-height:1.5}
    .hero-note{padding:14px 16px;border-radius:16px;background:#fff8f2;border:1px dashed #efc4b2;color:#7a3427;line-height:1.7}
    main{padding-bottom:18px}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px;line-height:1.2}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .metric,.service-card,.review,.step,.case-card,.article-card,.price-card,.compare-card,.contact-card,.timeline-card,.glass-card{padding:20px}
    .metric .num{font-size:28px;font-weight:800;color:var(--brand);margin-bottom:8px}
    .service-card h3,.review h3,.step h3,.case-card h3,.article-card h3,.compare-card h3,.contact-card h3,.timeline-card h3,.price-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.review p,.step p,.case-card p,.article-card p,.compare-card p,.contact-card p,.timeline-card p,.price-card p{margin:0;color:var(--muted);line-height:1.7}
    .chip-list,.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .chip,.tag{padding:7px 10px;border-radius:999px;background:#f8f2ec;border:1px solid #eadfd5;font-size:12px;color:#553c31}
    .section-card{padding:20px}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .step{position:relative;overflow:hidden}
    .step::before{content:attr(data-no);position:absolute;right:14px;top:10px;font-size:34px;font-weight:800;color:rgba(207,45,31,.12)}
    .step .icon{
      width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,rgba(207,45,31,.12),rgba(255,106,61,.16));
      display:grid;place-items:center;color:var(--brand);font-weight:800;margin-bottom:12px
    }
    .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:15px 14px;border-bottom:1px solid #f0e5dd;text-align:left;vertical-align:top}
    th{background:#fff4ee;color:#4a281e;font-size:14px}
    td{color:#30353d;line-height:1.65}
    tr:last-child td{border-bottom:none}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:6px
    }
    .stars{color:#ff7a45;font-size:18px;letter-spacing:2px}
    .faq-list{display:grid;grid-template-columns:1fr;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;background:none;border:none;padding:18px 20px;display:flex;justify-content:space-between;gap:16px;
      font-size:16px;font-weight:700;color:var(--text);text-align:left;cursor:pointer
    }
    .faq-q span{flex:1}
    .faq-a{padding:0 20px 18px;color:var(--muted);line-height:1.75;display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:.25s;color:var(--brand)}
    .review-meta{margin-top:14px;display:flex;justify-content:space-between;gap:12px;color:#6c7480;font-size:13px}
    .quote{font-size:42px;line-height:1;color:rgba(207,45,31,.22);margin-bottom:10px}
    .case-card .kvs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}
    .kv{padding:12px;border-radius:14px;background:#fff7f2;border:1px solid #f3ded3}
    .kv b{display:block;color:var(--brand);font-size:14px;margin-bottom:4px}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article-card .meta{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 10px}
    .article-card .meta span{font-size:12px;color:#8a6d5f;background:#fff6f1;border:1px solid #f1ddd2;border-radius:999px;padding:6px 8px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field label{font-weight:700;font-size:14px}
    input,select,textarea{
      width:100%;border:1px solid #dfd3c7;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:#ea7a61;box-shadow:0 0 0 4px rgba(207,45,31,.08)}
    textarea{min-height:120px;resize:vertical}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:10px}
    .footer{
      padding:28px 0 24px;margin-top:10px;border-top:1px solid rgba(234,223,213,.85);
      background:linear-gradient(180deg, rgba(255,250,246,.92), rgba(247,244,239,.98));
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:16px}
    .footer h3{margin:0 0 12px;font-size:18px}
    .footer p,.footer a,.footer li{color:#525961;line-height:1.75}
    .footer a:hover{color:var(--brand)}
    .foot-links{display:flex;flex-wrap:wrap;gap:10px}
    .foot-links a{padding:8px 10px;border-radius:10px;background:#fff;border:1px solid var(--line)}
    .fixed-tools{
      position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px
    }
    .tool{
      width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));
      color:#fff;box-shadow:0 14px 26px rgba(207,45,31,.28);border:none;cursor:pointer
    }
    .tool.secondary{background:#fff;color:var(--brand);border:1px solid var(--line)}
    .float-contact{
      position:fixed;left:16px;bottom:16px;z-index:60;max-width:min(320px, calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);overflow:hidden
    }
    .float-contact .head{padding:14px 16px;background:linear-gradient(135deg,#fff2ec,#fff);border-bottom:1px solid #f0e3da}
    .float-contact .body{padding:14px 16px;color:var(--muted);font-size:14px;line-height:1.65}
    .float-contact .body strong{color:var(--text)}
    .float-contact .body img{width:112px;height:auto;border-radius:14px;border:1px solid var(--line);margin-top:10px}
    .scroll-top{display:none}
    .mobile-only{display:none}
    .service-network{display:flex;flex-wrap:wrap;gap:10px}
    .service-network .tag{background:#fff;border-color:#edd9cc}
    .compare-high{border-left:4px solid var(--brand)}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .timeline-card .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 0 0 6px rgba(207,45,31,.08);margin-bottom:14px}
    .tags-cloud{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
    .tag-cloud{padding:18px}
    .tag-cloud .tag-list{margin-top:0}
    .note{font-size:13px;color:#7b6357;margin-top:10px;line-height:1.7}
    .compare-card ul{margin:10px 0 0 18px;color:var(--muted);line-height:1.8}
    .compare-card li{margin:4px 0}
    .hidden-anchor{position:relative;top:-86px}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.workflow,.article-list,.footer-grid,.timeline{grid-template-columns:1fr 1fr}
      .tags-cloud{grid-template-columns:repeat(3,1fr)}
    }
    @media (max-width: 760px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .navlinks,.navcta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-menu{
        display:none; padding:0 0 14px;
      }
      .mobile-menu.open{display:block}
      .mobile-menu a{
        display:block;padding:12px 0;border-top:1px solid #f0e5dd;color:#2e343b
      }
      .hero-grid,.grid-4,.grid-3,.grid-2,.workflow,.article-list,.footer-grid,.timeline,.form-grid,.tags-cloud{grid-template-columns:1fr}
      .hero-copy,.hero-panel{padding:22px}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .fixed-tools{right:12px;bottom:12px}
      .float-contact{left:12px;right:12px;max-width:none}
      .mobile-only{display:inline-flex}
      table{min-width:760px}
    }
    [data-reveal]{opacity:0;transform:translateY(18px);transition:.7s ease}
    [data-reveal].show{opacity:1;transform:none}