:root{
      --brand:#0ea5e9; /* icy aqua */
      --ink:#0f172a;
      --muted:#6b7280;
      --soft:#f0f9ff;
      --line:#dbeafe;
      --radius:16px;
      --shadow:0 8px 28px rgba(15,26,42,.08);
      --card:#ffffff;
      --maxw:1120px;
    }
    *{box-sizing:border-box}
    html,body{margin:0;padding:0;background:var(--soft);color:var(--ink);font-family:Inter,system-ui,Segoe UI,Arial,sans-serif}
    img{max-width:100%;height:auto;vertical-align:middle}
    a{color:var(--brand);text-decoration:none}
    .container{max-width:var(--maxw);margin:0 auto;padding:clamp(12px,2vw,20px)}
    header{display:flex;align-items:center;gap:16px;padding:14px 0}
    header .brand{font-weight:800;color:var(--brand);font-size:clamp(18px,2vw,20px)}
    header nav{margin-left:auto}
    header nav a{color:var(--muted);font-size:clamp(12px,1.7vw,14px)}
    .hero{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(12px,2vw,22px);margin-top:8px}
    .card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(14px,2vw,18px)}
    h1{margin:4px 0 10px;font-size:clamp(22px,3.2vw,28px);line-height:1.2}
    h2{margin:18px 0 8px;font-size:clamp(18px,2.6vw,22px)}
    p{line-height:1.7}
    .muted{color:var(--muted)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#fff;padding:12px 18px;border-radius:12px;min-height:44px}
    .btn.alt{background:#fff;color:var(--brand);border:1px solid var(--line)}
    .features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
    .feature{background:#f8fafc;border:1px solid var(--line);padding:14px;border-radius:12px}
    .specs-wrap{overflow:auto;-webkit-overflow-scrolling:touch}
    .specs{min-width:560px;width:100%;border-collapse:collapse}
    .specs td{padding:10px;border-bottom:1px solid var(--line);font-size:14px}
    .gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .faq-item{border-bottom:1px solid var(--line);padding:12px 0}
    .sticky-bar{position:sticky;bottom:12px;z-index:10;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:10px 12px;border-radius:14px;display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:18px}
    footer{margin:26px 0;color:var(--muted);font-size:13px;text-align:center}
    nav.breadcrumb{font-size:13px;margin-bottom:6px;white-space:nowrap;overflow:auto}
    /* Mobile adaptations */
    @media (max-width:980px){.hero{grid-template-columns:1fr}}
    @media (max-width:640px){
      .gallery{grid-template-columns:1fr}
      .btn{width:100%}
      header{flex-wrap:wrap;row-gap:6px}
    }
    /* Respect reduced motion */
    @media (prefers-reduced-motion:reduce){
      *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    }