:root{--bg:#f6f7fb;--card:#fff;--text:#111;--muted:#666;--line:#e8e8ef}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--text)}a{color:inherit}.container{max-width:1180px;margin:0 auto;padding:0 16px}.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.headerRow{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:14px}.brand{text-decoration:none}.brandTitle{font-weight:800;font-size:18px}.brandSub{font-size:12px;color:var(--muted)}.topNav{display:flex;gap:12px}.topNav a{text-decoration:none;color:var(--muted);font-weight:600}.topNav a.active{color:#111}.mainGrid{display:grid;grid-template-columns:280px 1fr;gap:16px;padding:16px 0}@media(max-width:900px){.mainGrid{grid-template-columns:1fr}.sidebar{display:none}}.box{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px}.boxTitle{font-weight:800;margin-bottom:10px}.sideList{list-style:none;padding:0;margin:0}.sideList li{padding:7px 0;border-bottom:1px dashed var(--line)}.sideList li:last-child{border-bottom:0}.sideList a{text-decoration:none;color:var(--muted);font-weight:700}.sideList a:hover{color:#111}.content{min-height:60vh}.h1{margin:0 0 10px}.muted{color:var(--muted);font-size:13px}.error{background:#ffecec;border:1px solid #ffb3b3;color:#a00;padding:10px;border-radius:10px;margin:10px 0}.cardGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}@media(max-width:900px){.cardGrid{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.cardGrid{grid-template-columns:1fr}}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px;text-decoration:none;display:block}.cardTitle{font-weight:800;margin-bottom:6px}.cardMeta{font-size:12px;color:var(--muted);margin-bottom:8px}.cardExcerpt{font-size:13px;color:var(--muted)}.article{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px}.articleBody img{max-width:100%;height:auto}.footer{border-top:1px solid var(--line);background:#fff;margin-top:18px}.footerRow{display:flex;justify-content:space-between;align-items:center;padding:14px 0;color:var(--muted);font-size:13px}.footerLinks{display:flex;gap:12px}.footerLinks a{text-decoration:none;color:var(--muted)}