:root{color-scheme:light;--background:#f6f2ea;--surface:#eee8dc;--surface-soft:#f9f6f0;--text:#282722;--muted:#706d64;--line:#d9d1c4;--accent:#9b5c44;--accent-dark:#75412f;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-serif:"Songti SC", SimSun, serif;--shell:1120px;--reading:720px;--radius:3px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--background);min-width:0;color:var(--text);font-family:var(--font-sans);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.75}a{color:inherit;text-underline-offset:.22em;text-decoration-thickness:1px}a:hover{color:var(--accent-dark)}:focus-visible{outline:2px solid 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h2{overflow-wrap:anywhere;margin-bottom:18px;font-size:clamp(1.35rem,2.2vw,1.75rem)}.article-card h2 a{text-decoration:none}.article-card>p{color:var(--muted);overflow-wrap:anywhere;margin-bottom:30px;font-size:.95rem}.article-meta{color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:14px;margin-bottom:42px;font-size:.75rem;display:flex}.article-meta span{color:var(--accent-dark);letter-spacing:.1em;font-weight:700}.text-link{color:var(--accent-dark);margin-top:auto;font-size:.88rem;font-weight:650;text-decoration:none}.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.topic-card{border:1px solid var(--line);background:var(--surface);min-height:250px;padding:32px;text-decoration:none;position:relative;overflow:hidden}.topic-card:hover{border-color:var(--accent)}.topic-marker{color:var(--accent-dark);letter-spacing:.16em;margin-bottom:62px;font-size:.75rem;font-weight:700;display:block}.topic-card 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