:root { --fg:#111; --muted:#666; --bg:#fafafa; --card:#fff; --accent:#c0392b; --border:#e5e5e5; --hover:#f5f5f5; }
@media (prefers-color-scheme: dark){:root{--fg:#eee;--muted:#aaa;--bg:#0f1115;--card:#171a21;--accent:#ff6b6b;--border:#2a2f38;--hover:#1f242c;}}
html{font-size:18px}
*{box-sizing:border-box}body{font-family:-apple-system,"Noto Sans HK","PingFang HK","Microsoft JhengHei",sans-serif;background:var(--bg);color:var(--fg);margin:0;line-height:1.6}
.container{max-width:780px;margin:0 auto;padding:24px 18px 80px}
header h1{margin:0 0 4px;font-size:1.6rem}header p{margin:0;color:var(--muted)}
.meta{color:var(--muted);font-size:.85rem;margin:8px 0 16px}
.cat-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 24px;border-bottom:1px solid var(--border);padding-bottom:10px}
.cat-tabs a{display:inline-block;padding:6px 12px;border-radius:999px;font-size:.85rem;text-decoration:none;color:var(--fg);background:var(--card);border:1px solid var(--border)}
.cat-tabs a:hover{background:var(--hover);border-color:var(--accent)}
.cat-tabs a.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.story{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin-bottom:12px}
.story.story-headline{padding:8px 14px;display:flex;flex-wrap:wrap;gap:6px 10px;align-items:baseline}
.story.story-headline h2{margin:0;font-size:.95rem;font-weight:500;flex:1 1 auto;min-width:0}
.story.story-headline .tag{font-size:.65rem;padding:1px 6px;flex:0 0 auto}
.story.story-headline .src{margin:0;font-size:.72rem;flex:0 0 auto;white-space:nowrap}
.story h2{margin:0 0 6px;font-size:1.05rem;line-height:1.35}
.story h2 a{color:var(--fg);text-decoration:none}.story h2 a:hover{color:var(--accent)}
.story .src{color:var(--muted);font-size:.78rem;margin-bottom:6px}
.story .src a{color:var(--muted);text-decoration:underline}
.cluster-sources{margin:0 0 8px;font-size:.78rem;color:var(--muted)}
.cluster-sources summary{cursor:pointer;display:inline-block;padding:3px 10px;border-radius:999px;background:var(--hover);border:1px solid var(--border);user-select:none;list-style:none}
.cluster-sources summary::-webkit-details-marker{display:none}
.cluster-sources summary:hover{border-color:var(--accent);color:var(--fg)}
.cluster-sources[open] summary{background:var(--card);border-color:var(--accent)}
.cluster-sources ul{margin:6px 0 0 4px;padding-left:18px}
.cluster-sources li{margin:2px 0}
.deep-analysis{margin:8px 0 4px;border-top:1px dashed var(--border);padding-top:8px}
.deep-analysis summary{cursor:pointer;font-size:.85rem;color:var(--accent);font-weight:600;user-select:none;list-style:none;padding:4px 0}
.deep-analysis summary::-webkit-details-marker{display:none}
.deep-analysis summary:hover{opacity:.8}
.deep-analysis .deep-body{margin-top:6px;font-size:.92rem;color:var(--fg);line-height:1.65}
.deep-analysis .deep-body p{margin:0 0 10px}
.deep-analysis .deep-body p:last-child{margin-bottom:0}
.story .summary-short{font-size:.95rem;color:var(--fg);margin:6px 0}
.story .summary-long{font-size:.88rem;color:var(--muted);margin:6px 0;white-space:pre-line}
.story .yt-embed{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px;margin:8px 0}
.story .yt-embed iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}
.tag{display:inline-block;font-size:.72rem;padding:2px 8px;border-radius:999px;background:var(--accent);color:#fff;margin-right:6px}
.rating{margin-top:8px;font-size:.78rem;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:4px}
.rating a{color:var(--muted);text-decoration:none;font-size:1.1rem;margin:0 2px;opacity:.5}
.rating a:hover{opacity:1;color:#f5b50a}
.rate-btn{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:26px;background:transparent;border:1px solid var(--border);color:var(--muted);padding:0 6px;border-radius:6px;cursor:pointer;font-size:.82rem;font-family:inherit;line-height:1}
.rate-btn:hover{border-color:var(--accent);color:var(--fg)}
.rate-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.rate-btn.zero{font-size:1rem}
.export-bar{margin:6px 0 12px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.export-btn{display:inline-block;padding:5px 12px;background:transparent;color:var(--accent);border:1px solid var(--accent);border-radius:8px;cursor:pointer;font-size:.8rem;font-family:inherit}
.export-btn:hover{background:var(--accent);color:#fff}
.export-btn:disabled{opacity:.4;cursor:not-allowed}
.export-bar .hint{font-size:.72rem;color:var(--muted)}
.expand-all{margin-top:36px}
.expand-all summary{cursor:pointer;padding:10px 0;font-weight:600;color:var(--accent)}
.expand-all .cat-block{margin:18px 0}
.expand-all .cat-block h3{margin:0 0 8px;font-size:.95rem;color:var(--muted)}
.expand-all .cat-block .story{padding:10px 14px}
.archive{margin-top:36px}.archive h3{margin:0 0 8px}.archive a{display:inline-block;margin:0 8px 8px 0;color:var(--accent);text-decoration:none;font-size:.9rem}
footer{margin-top:48px;color:var(--muted);font-size:.8rem;text-align:center}
.article-page h1{margin-bottom:8px}
.article-page .summary-card{font-size:1.0rem;background:var(--card);padding:14px 16px;border-radius:12px;border:1px solid var(--border);margin-top:12px}
.article-page .actions{margin-top:18px}.btn{display:inline-block;background:var(--accent);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;font-weight:600}