:root{--bg:#0b0f1d;--fg:#e9eef5;--muted:#a9b3c9;--acc:#ff5da2;--card:#131a33;--border:#1e2a4d;}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;line-height:1.65}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:20px}
.header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(11,16,32,.9);backdrop-filter:blur(6px);z-index:10}
.brand{font-weight:900;font-size:1.25rem}
.badge{padding:4px 8px;border:1px solid var(--border);border-radius:10px;font-size:.8rem;color:#fff}
.nav a{margin:0 10px;color:#ffd9ea}
.section{margin:28px 0}
.notice{font-size:.9rem;color:var(--muted);margin-top:6px}
.cat-list a{display:inline-block;margin:6px 8px 0 0;padding:6px 10px;border:1px solid var(--border);border-radius:999px}
.card{background:var(--card);border:1px solid var(--border);padding:16px;border-radius:16px}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:900px){.cols{grid-template-columns:1fr}}
footer{border-top:1px solid var(--border);padding:20px;color:var(--muted);font-size:.9rem}
.hero-embed{display:flex;flex-direction:column;gap:16px;margin:24px 0}
.embed-wrap{display:flex;justify-content:center}
.embed-wrap iframe{width:100%;max-width:1200px;height:1200px;border:0}
@media (max-width: 1024px){
  .embed-wrap iframe{height:900px}
}
@media (max-width: 640px){
  .embed-wrap iframe{height:640px}
}
.small{font-size:.9rem;color:var(--muted)}