:root{--bg: #ffffff;--fg: #1a1a1a;--muted: #5c5c5c;--accent: #2c7be5;--border: #eaeaea;--radius: 8px;--max-width: 1100px;--content-width: 720px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:var(--font-sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.25rem}.site-header{border-bottom:1px solid var(--border);padding:1rem 0;background:var(--bg)}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}.site-logo{height:32px;width:auto;display:block}.brand{font-weight:700;font-size:1.15rem;color:var(--fg);text-decoration:none}.site-header nav{display:flex;gap:1.25rem;flex-wrap:wrap}.site-header nav a{color:var(--muted);text-decoration:none;font-size:.95rem}.site-header nav a:hover,.site-header nav a.active{color:var(--accent);font-weight:600}main{padding:2.5rem 0 4rem;min-height:60vh}.site-footer{border-top:1px solid var(--border);padding:1.5rem 0;color:var(--muted);font-size:.9rem}a{color:var(--accent)}a:hover{text-decoration:underline}h1,h2,h3,h4{line-height:1.2;margin:2rem 0 .75rem}h1{font-size:2.25rem}h2{font-size:1.6rem}h3{font-size:1.25rem}img,video{max-width:100%;height:auto;border-radius:var(--radius)}.article-list{list-style:none;padding:0;margin:0;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.article-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;background:var(--bg);transition:transform .15s ease,box-shadow .15s ease;position:relative}.article-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0000000f}.article-card a{color:inherit;text-decoration:none}.article-card .cover{aspect-ratio:16 / 9;background:#f4f4f4 center/cover no-repeat}.article-card .meta{padding:1rem 1.1rem 1.25rem}.article-card h3{margin:0 0 .5rem;font-size:1.1rem}.article-card p{margin:0;color:var(--muted);font-size:.92rem}.article-card time{display:block;color:var(--muted);font-size:.8rem;margin-top:.6rem}.pinned-badge{position:absolute;top:.6rem;right:.6rem;background:var(--accent);color:#fff;font-size:.7rem;padding:.2rem .55rem;border-radius:999px;z-index:1}.prose{max-width:var(--content-width);margin:0 auto}.prose p{margin:1rem 0}.prose ul,.prose ol{padding-left:1.5rem}.prose blockquote{border-left:3px solid var(--accent);margin:1rem 0;padding:.25rem 1rem;color:var(--muted);font-style:italic}.prose code{background:#f4f4f4;padding:.1rem .35rem;border-radius:4px;font-size:.92em}.prose pre{padding:1rem;border-radius:var(--radius);overflow-x:auto}.prose pre code{background:transparent;padding:0}.prose hr{border:0;border-top:1px solid var(--border);margin:2rem 0}.article-header{margin-bottom:2rem}.article-header .category{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;color:var(--accent);font-weight:600}.article-header h1{margin-top:.5rem}.article-header .meta{color:var(--muted);font-size:.92rem;margin-top:.5rem}.article-cover{margin:1.5rem 0 2rem;border-radius:var(--radius);overflow:hidden}.section-grid{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));margin:2rem 0}.section-card{border:1px solid var(--border);border-radius:var(--radius);padding:1.75rem;text-decoration:none;color:inherit;background:var(--bg);transition:transform .15s ease,box-shadow .15s ease}.section-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0000000f}.section-card h2{margin-top:0;color:var(--accent)}.section-card p{color:var(--muted);margin-bottom:0}.topic-filters{display:flex;gap:.5rem;flex-wrap:wrap;margin:1rem 0 2rem}.topic-filters a{padding:.35rem .85rem;border:1px solid var(--border);border-radius:999px;font-size:.85rem;text-decoration:none;color:var(--muted)}.topic-filters a.active,.topic-filters a:hover{color:var(--accent);border-color:var(--accent)}.pagination{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:3rem 0 1rem;padding:1rem 0;border-top:1px solid var(--border, #e5e7eb);font-size:.95rem}.pagination a{color:var(--accent);text-decoration:none;font-weight:600}.pagination a:hover{text-decoration:underline}.pagination .disabled{color:#9ca3af}.pagination .page-info{color:#6b7280}