:root{--bg:#fff;--fg:#111827;--muted:#6b7280;--line:#e5e7eb;--card:#fff;--accent:#ef4444;--badge:#111827;--badge-fg:#fff}
*{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,Helvetica,Arial,sans-serif}
a{color:inherit}.container{max-width:1140px;margin:0 auto;padding:16px}
.site-header{border-bottom:1px solid var(--line);background:#fff}.site-footer{border-top:1px solid var(--line);background:#fff;color:var(--muted)}
.site-header .container,.site-footer .container{display:flex;align-items:center;justify-content:space-between;gap:10px}
nav a{color:var(--muted);text-decoration:none;margin-left:12px}.btn{background:var(--accent);color:#fff;border:0;padding:10px 16px;border-radius:8px;font-weight:600;cursor:pointer;text-decoration:none}
.btn-outline{background:transparent;border:1px solid var(--line);color:var(--fg)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;text-decoration:none;color:inherit;transition:box-shadow .12s}
.card:hover{box-shadow:0 6px 20px rgba(0,0,0,.08)}.card img{width:100%;height:220px;object-fit:cover;display:block;background:#f3f4f6}
.placeholder{height:220px;display:grid;place-items:center;background:#f3f4f6;color:#9ca3af}.meta{padding:12px}
.badge{background:var(--badge);color:var(--badge-fg);border-radius:999px;padding:2px 10px;font-size:12px}.row{margin-top:6px}.small{font-size:14px;color:var(--muted)}
.pagination{display:flex;gap:10px;align-items:center;justify-content:center;margin:20px 0}.page{color:var(--muted);text-decoration:none;border:1px solid var(--line);padding:6px 10px;border-radius:8px}
.ad-detail{display:grid;grid-template-columns:1.2fr 1fr;gap:18px}.slideshow{position:relative;background:#f3f4f6;border:1px solid var(--line);border-radius:12px;overflow:hidden;min-height:320px;display:grid;place-items:center}
.slideshow img{max-width:100%;height:auto;display:none}.slideshow .nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.35);border:0;color:#fff;font-size:28px;width:44px;height:44px;border-radius:50%;cursor:pointer}
.slideshow .prev{left:8px}.slideshow .next{right:8px}.tags{list-style:none;padding:0;margin:10px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.tags li{border:1px solid var(--line);border-radius:999px;padding:4px 10px;color:#6b7280;background:#fff}.muted{color:var(--muted)}
.agegate .center-card{max-width:480px;margin:14vh auto;padding:24px;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:center}
@media (max-width:900px){.grid{grid-template-columns:1fr}.ad-detail{grid-template-columns:1fr}.card img{height:200px}}