:root{--bg:#fff;--bg-subtle:#f7f7f5;--text:#20242a;--text-muted:#6a7076;--border:#e8e8e4;--accent:#0f766e;--accent-strong:#0b5c56;--accent-soft:#e6f2f1;--radius:12px;--radius-sm:7px;--content:46rem;--wide:62rem;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, "SF Mono", SFMono-Regular, "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;--shadow-sm:0 1px 2px #1018200a;--shadow-md:0 6px 24px 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.cover{aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius);background:var(--bg-subtle);width:100%;margin-bottom:1.5rem}.post-nav{border-top:1px solid var(--border);gap:.75rem;margin-top:3rem;padding-top:1.5rem;display:grid}@media (width>=640px){.post-nav{grid-template-columns:1fr 1fr}.post-nav .next{text-align:right}}.post-nav a{color:inherit;display:block}.post-nav .label{color:var(--text-muted);margin-bottom:.2rem;font-size:.8rem;display:block}.post-nav a:hover .title{color:var(--accent)}.filters{flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem;display:flex}.grid-2,.grid-3{grid-template-columns:1fr;gap:1rem;display:grid}@media (width>=640px){.grid-2{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:repeat(3,1fr)}}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.muted{color:var(--text-muted)}