:root{--fg:#1a1a1a;--muted:#6b7280;--accent:#2563eb;--border:#e5e7eb;--bg-soft:#f9fafb}*{box-sizing:border-box}body{margin:0;color:var(--fg);font:17px/1.65 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:#fff}.container{max-width:720px;margin:0 auto;padding:48px 20px 96px}.site-head h1{font-size:2rem;margin:0}.sub{color:var(--muted);margin-top:4px}.post-list{list-style:none;padding:0;margin:40px 0 0}.post-list li{padding:18px 0;border-bottom:1px solid var(--border)}.post-title{font-size:1.25rem;font-weight:600;color:var(--fg);text-decoration:none}.post-title:hover{color:var(--accent)}.date{font-size:.9rem}.date,.desc{color:var(--muted)}.desc{margin:6px 0 0}.back{color:var(--accent);text-decoration:none;font-size:.9rem}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:20px;gap:20px;margin:40px 0 0}.card{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:12px;overflow:hidden;text-decoration:none;color:inherit;background:#fff;transition:transform .12s ease,box-shadow .12s ease}.card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.08)}.card-cover{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}.card-cover img{width:100%;height:100%;object-fit:cover;display:block}.card-body{padding:14px 16px}.card-title{font-size:1.05rem;font-weight:600;margin:0}.card-desc{color:var(--muted);font-size:.9rem;margin:6px 0 0}@media (max-width:520px){.cards{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}}.prose{margin-top:24px}.prose h1{font-size:2.1rem;line-height:1.2;margin:16px 0 8px}.prose h2{font-size:1.5rem;margin:32px 0 8px}.prose h3{font-size:1.2rem;margin:24px 0 6px}.prose img{max-width:100%;height:auto;border-radius:8px}.prose figure{margin:24px 0}.prose figcaption{color:var(--muted);font-size:.85rem;text-align:center;margin-top:6px}.prose blockquote{border-left:3px solid var(--border);margin:16px 0;padding:4px 16px;color:var(--muted)}.prose pre.code{background:#0f172a;color:#e2e8f0;padding:16px;border-radius:8px;overflow-x:auto;font-size:.9rem}.prose code{background:var(--bg-soft);padding:1px 5px;border-radius:4px;font-size:.9em}.prose pre.code code{background:none;padding:0}.prose hr{border:none;border-top:1px solid var(--border);margin:32px 0}.prose table{border-collapse:collapse;width:100%;margin:16px 0}.prose td{border:1px solid var(--border);padding:8px 12px}.prose .todo{display:flex;align-items:center;gap:6px}.prose .equation{background:var(--bg-soft);padding:8px 12px;border-radius:6px;font-family:ui-monospace,monospace}.callout{display:flex;gap:12px;align-items:flex-start;background:var(--bg-soft);border:1px solid var(--border);border-radius:8px;padding:14px 16px;margin:16px 0}.callout-icon{font-size:1.2rem}.columns{display:flex;gap:24px}.columns .column{flex:1 1;min-width:0}.unhandled{background:#fff7ed;border:1px dashed #fb923c;color:#9a3412;padding:8px 12px;border-radius:6px;margin:12px 0;font-size:.85rem}@media (max-width:600px){.columns{flex-direction:column}}