:root{
      --bg:#0b1020;
      --panel:#111a33;
      --text:#e8eefc;
      --muted:#b8c3e6;
      --brand:#7aa7ff;
      --line:rgba(255,255,255,.12);
      --shadow: 0 10px 30px rgba(0,0,0,.35);
      --radius: 18px;
      --max: 1120px;
      --pad: 18px;
      --pad2: 26px;
      --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
    }
    *{box-sizing:border-box}
    body{
      margin:0;
      font-family:var(--font);
      background: radial-gradient(1200px 600px at 10% 0%, rgba(122,167,255,.22), transparent 60%),
                  radial-gradient(1000px 500px at 90% 10%, rgba(122,255,214,.12), transparent 55%),
                  var(--bg);
      color:var(--text);
      line-height:1.55;
    }
    a{color:inherit; text-decoration:none}
    a:hover{text-decoration:underline}
    img{max-width:100%; height:auto; display:block}
    .container{max-width:var(--max); margin:0 auto; padding:0 var(--pad2)}
    .small{font-size:.95rem; color:var(--muted)}
    .muted{color:var(--muted)}
    .skip-link{position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden}
    .skip-link:focus{left:16px; top:16px; width:auto; height:auto; background:#000; color:#fff; padding:10px 12px; border-radius:10px; z-index:9999}

    header.site-header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(11,16,32,.55);
      border-bottom:1px solid var(--line);
    }
    .header-row{display:flex; align-items:center; justify-content:space-between; padding:14px 0}
    .brand{display:flex; align-items:center; gap:12px}
    .brand-mark{
      width:42px; height:42px; border-radius:14px;
      background: linear-gradient(135deg, rgba(122,167,255,.95), rgba(122,255,214,.55));
      box-shadow: var(--shadow);
    }
    .brand-title strong{font-size:1.05rem; letter-spacing:.2px; display:block}
    .brand-title span{font-size:.85rem; color:var(--muted)}

    .nav-toggle{
      display:none;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
      color:var(--text);
      padding:10px 12px;
      border-radius:14px;
      cursor:pointer;
    }
    nav.primary-nav ul{display:flex; gap:14px; list-style:none; margin:0; padding:0}
    nav.primary-nav a{display:inline-block; padding:10px 12px; border-radius:14px}
    nav.primary-nav a:hover{background:rgba(255,255,255,.07); text-decoration:none}
    nav.primary-nav a[aria-current="page"]{background:rgba(122,167,255,.18); border:1px solid rgba(122,167,255,.25)}

    .hero{padding:42px 0 18px}
    .hero-grid{display:grid; grid-template-columns: 1.2fr 1fr; gap:18px; align-items:stretch}
    .card, .panel{
      background:rgba(17,26,51,.72);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow: var(--shadow);
    }
    .hero-card{padding:28px}
    .hero-card h1{margin:0 0 10px; font-size:2.0rem; line-height:1.15}
    .hero-card p{margin:0 0 18px; color:var(--muted); font-size:1.05rem}
    .cta-row{display:flex; gap:12px; flex-wrap:wrap}
    .btn{
      display:inline-block;
      padding:12px 14px;
      border-radius:16px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
      text-decoration:none;
    }
    .btn.primary{background:rgba(122,167,255,.22); border:1px solid rgba(122,167,255,.35)}
    .btn:hover{text-decoration:none; filter:brightness(1.06)}

    .notice{
      margin-top:12px;
      padding:12px 14px;
      border-radius:16px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.05);
      color:var(--muted);
      font-size:.95rem;
    }

    .image-panel{padding:0; overflow:hidden}
    .image-panel img{width:100%; height:100%; object-fit:cover; aspect-ratio: 4 / 3}
    .image-panel .caption{padding:12px 14px; border-top:1px solid var(--line); color:var(--muted); font-size:.95rem}

    .section{padding:18px 0 34px}
    .section h2{margin:0 0 12px; font-size:1.35rem}

    .grid{display:grid; grid-template-columns: repeat(12, 1fr); gap:14px}
    .tile{grid-column: span 6; padding:16px; overflow:hidden}
    .tile .thumb{border-radius:16px; overflow:hidden; border:1px solid var(--line)}
    .tile h3{margin:12px 0 6px}
    .tile p{margin:0 0 12px; color:var(--muted)}
    .tile .btn{padding:10px 12px; border-radius:14px}

    .footer{border-top:1px solid var(--line); background:rgba(11,16,32,.65); padding:26px 0}
    .footer-grid{display:grid; grid-template-columns: 1.2fr 1fr 1fr; gap:18px}

    @media (max-width: 900px){
      .hero-grid{grid-template-columns:1fr}
      .tile{grid-column: span 12}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex; align-items:center; gap:8px}
      nav.primary-nav{position:relative}
      nav.primary-nav ul{
        display:none;
        position:absolute; right:0; top:54px;
        flex-direction:column;
        min-width: 230px;
        background: rgba(17,26,51,.98);
        border:1px solid var(--line);
        border-radius: 18px;
        padding:10px;
        box-shadow: var(--shadow);
      }
      nav.primary-nav.open ul{display:flex}
    }