:root{
      --bg:#fffaf0;
      --panel:#ffffff;
      --panel-2:#fff6d8;
      --line:#f0dd8a;
      --text:#1f2937;
      --muted:#5c6470;
      --brand:#ffcc00;
      --brand-2:#ffb703;
      --accent:#0f172a;
      --shadow:0 18px 40px rgba(31,41,55,.08);
      --shadow-2:0 10px 24px rgba(255,183,3,.16);
      --radius:22px;
      --radius-sm:14px;
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,204,0,.18), transparent 28%),
        radial-gradient(circle at top right, rgba(255,183,3,.10), transparent 26%),
        linear-gradient(180deg, #fffef7 0%, #fffaf0 34%, #fffdf8 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(255,250,240,.88);
      border-bottom:1px solid rgba(240,221,138,.7);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:76px;padding:10px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;padding:6px;box-shadow:var(--shadow-2)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#334155;padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover{background:rgba(255,204,0,.16);color:#111827}
    .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;transition:.22s ease;cursor:pointer;
      box-shadow:none;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#111827;box-shadow:var(--shadow-2)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 24px rgba(255,183,3,.22)}
    .btn-ghost{background:#fff;border-color:#f0dd8a;color:#1f2937}
    .btn-ghost:hover{border-color:#f5cc47;transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid #f0dd8a;border-radius:12px;width:44px;height:44px;align-items:center;justify-content:center}
    .menu-toggle span{display:block;width:18px;height:2px;background:#111827;position:relative}
    .menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#111827}
    .menu-toggle span::before{top:-6px}.menu-toggle span::after{top:6px}
    .hero{padding:44px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-card,.info-card,.section-card,.faq-item,.review-card,.news-card,.form-card,.small-card,.compare-card,.timeline-card,.service-card,.case-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(240,221,138,.9);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-card{padding:28px;position:relative;overflow:hidden}
    .hero-card::before{
      content:"";position:absolute;inset:auto -10% -40% auto;width:300px;height:300px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,204,0,.28), transparent 62%);
      pointer-events:none;
    }
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#fff7c7;border:1px solid #f2da73;color:#7a5b00;font-size:13px;font-weight:700}
    h1{font-size:clamp(30px,4vw,54px);line-height:1.08;margin:14px 0 14px;color:#111827;letter-spacing:-.03em}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:64ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
    .mini-stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff, #fff8dc);border:1px solid #f2e3a5}
    .mini-stat strong{display:block;font-size:22px;color:#111827}
    .mini-stat span{display:block;font-size:13px;color:var(--muted);margin-top:6px;line-height:1.5}
    .hero-side{display:grid;gap:14px}
    .info-card{padding:20px}
    .info-card h3,.section-card h2,.compare-card h2,.form-card h2,.timeline-card h2{margin:0 0 12px;font-size:22px;line-height:1.2}
    .info-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .info-list li{display:flex;gap:10px;align-items:flex-start;color:#334155;line-height:1.6}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));margin-top:8px;flex:none;box-shadow:0 0 0 4px rgba(255,204,0,.14)}
    .section{padding:18px 0}
    .section-card{padding:26px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:70ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .metric,.service-card,.case-card,.news-card,.review-card,.small-card{padding:18px}
    .metric strong{display:block;font-size:28px;color:#111827}
    .metric span{display:block;margin-top:8px;color:var(--muted);line-height:1.5}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 12px;border-radius:999px;background:#fff9e4;border:1px solid #f2e3a5;color:#4b5563;font-size:13px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .service-card h3,.case-card h3,.review-card h3,.news-card h3,.small-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.case-card p,.review-card p,.news-card p,.small-card p{margin:0;color:var(--muted);line-height:1.7}
    .icon-badge{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#fff1a8,#ffd84d);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:12px;box-shadow:var(--shadow-2)}
    .stepper{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff9e6);border:1px solid #f0dd8a}
    .step strong{display:flex;align-items:center;gap:10px;font-size:17px}
    .step em{font-style:normal;display:inline-flex;width:28px;height:28px;border-radius:999px;background:#111827;color:#fff;align-items:center;justify-content:center;font-size:13px}
    .step p{margin:12px 0 0;color:var(--muted);line-height:1.7}
    .compare-wrap{overflow:auto;border-radius:18px;border:1px solid #efdf9a;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid #f3e6b4;text-align:left;vertical-align:top}
    th{background:#fff7cc;color:#1f2937}
    td{color:#334155;line-height:1.7}
    .badge{display:inline-flex;padding:5px 10px;border-radius:999px;background:#fff2a8;color:#6b4e00;font-size:12px;font-weight:700}
    .accordion{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;border:0;background:transparent;padding:18px 18px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:16px;font-weight:700;color:#111827;text-align:left;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{max-height:180px;padding-bottom:18px}
    .faq-item .chev{transition:transform .22s ease}
    .faq-item.active .chev{transform:rotate(180deg)}
    .review-grid,.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .stars{color:#f59e0b;font-size:16px;letter-spacing:2px}
    .rating-box{display:grid;gap:12px;padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff8d8,#fff)}
    .rating-box .score{font-size:38px;font-weight:900;color:#111827}
    .form-grid{display:grid;grid-template-columns:1fr 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 #e8d68a;border-radius:14px;background:#fff;padding:12px 14px;
      font:inherit;color:#111827;outline:none;transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:#f1b900;box-shadow:0 0 0 4px rgba(255,204,0,.18)}
    textarea{min-height:120px;resize:vertical}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:6px}
    .footer{
      margin-top:18px;padding:24px 0 18px;border-top:1px solid rgba(240,221,138,.8);
      background:linear-gradient(180deg, rgba(255,255,255,.4), rgba(255,249,221,.9));
      color:#1f2937;
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;align-items:start}
    .footer a{color:#1f2937}
    .footer small{color:#5c6470;line-height:1.7}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:7px 10px;border-radius:999px;background:#fff;border:1px solid #eedf9d}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:16px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#111827;font-weight:900;
      box-shadow:var(--shadow-2);border:1px solid rgba(0,0,0,.03)
    }
    .float-panel{
      display:none;position:absolute;right:0;bottom:58px;width:min(280px, calc(100vw - 32px));
      background:#fffdf3;border:1px solid #f0dd8a;border-radius:18px;box-shadow:var(--shadow);padding:14px;
    }
    .floating.open .float-panel{display:block}
    .float-panel strong{display:block;margin-bottom:8px}
    .qrcode{width:100%;border-radius:14px;overflow:hidden;border:1px solid #f0dd8a;background:#fff}
    .qrcode img{width:100%;height:auto}
    .top-anchor{position:fixed;left:16px;bottom:16px;z-index:60}
    .top-anchor a{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:16px;background:#fff;border:1px solid #f0dd8a;box-shadow:var(--shadow);font-weight:900}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .scroll-reveal.visible{opacity:1;transform:none}
    .article-list{display:grid;gap:12px}
    .article-row{display:flex;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:16px;background:#fff;border:1px solid #f0dd8a}
    .article-row span{color:var(--muted)}
    .service-network{display:flex;flex-wrap:wrap;gap:10px}
    .service-network a{padding:10px 12px;border-radius:14px;background:#fff;border:1px solid #eedf9d;color:#334155}
    .logo-strip{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .logo-strip .ai-page-logo{width:52px}
    .gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .gallery .small-card{overflow:hidden}
    .gallery img{width:100%;border-radius:14px;margin-top:10px}
    .tabs-note{font-size:13px;color:#6b7280;margin-top:10px}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.stepper,.review-grid,.news-grid,.footer-grid,.gallery{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 720px){
      .nav-links,.nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-open .nav-links,.mobile-open .nav-cta{display:flex}
      .mobile-open .nav{align-items:flex-start;flex-direction:column}
      .mobile-open .nav-links{width:100%;justify-content:flex-start;gap:8px;padding:8px 0 0}
      .mobile-open .nav-cta{width:100%;padding:6px 0 10px}
      .hero-grid,.grid-4,.grid-3,.stepper,.review-grid,.news-grid,.footer-grid,.gallery,.form-grid{grid-template-columns:1fr}
      .hero{padding-top:22px}
      .hero-card,.section-card{padding:20px}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*::before,*::after{animation:none!important;transition:none!important}
    }