:root{--bg: #ffffff;--text: #1a1a2e;--text-secondary: #5a5a6e;--accent: #2563eb;--accent-soft: #eff6ff;--border: #e2e8f0;--muted: #94a3b8;--warn: #f59e0b;--warn-soft: #fef3c7;--green: #22c55e;--green-soft: #f0fdf4;--red: #ef4444;--red-soft: #fee2e2}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#f5f7fa;color:var(--text);line-height:1.6}.app{max-width:960px;margin:0 auto;padding:24px 20px 60px}.app-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}.app-title{font-size:28px;font-weight:800;margin:0;color:var(--text)}.app-subtitle{font-size:14px;margin:4px 0 0;color:var(--text-secondary)}.header-controls{display:flex;align-items:center;gap:12px}.date-nav{display:flex;align-items:center;gap:8px}.date-nav-btn{width:32px;height:32px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);cursor:pointer;font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;pointer-events:auto}.date-nav-btn:hover:not(:disabled){background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}.date-nav-btn:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}.date-nav-label{font-size:14px;font-weight:600;min-width:120px;text-align:center}.toolbar{display:flex;align-items:center;margin:16px 0}.view-switcher{display:flex;gap:4px;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:3px}.view-btn{border:none;background:transparent;color:var(--text-secondary);padding:6px 14px;border-radius:8px;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease}.view-btn:hover{color:var(--text)}.view-btn.active{background:var(--accent);color:#fff;font-weight:600}.streak-counter{background:var(--bg);border:1px solid var(--border);padding:6px 12px;border-radius:8px;font-size:13px;white-space:nowrap}.streak-counter.streak-gold{border-color:var(--warn);color:var(--warn)}.briefing-section{background:var(--bg);border-radius:12px;padding:16px;margin-bottom:20px;border:1px solid var(--border)}.section-projects{border-color:var(--accent);border-width:2px;background:linear-gradient(to bottom,var(--accent-soft),var(--bg) 40%)}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:8px}.section-heading h2{font-size:18px;font-weight:700;margin:0}.section-meta{font-size:12px;color:var(--muted);background:var(--bg);border:1px solid var(--border);padding:2px 8px;border-radius:999px}.project-list{display:grid;gap:14px}.project-card{border:1px solid var(--border);border-radius:10px;padding:14px 16px;background:var(--bg);transition:box-shadow .15s ease,border-color .15s ease}.project-card:hover{border-color:var(--accent);box-shadow:0 2px 8px #2563eb14}.project-card.anomalous-growth{background:var(--warn-soft);border-color:var(--warn)}.project-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px;gap:8px}.project-name{font-weight:700;font-size:15px;color:var(--accent);text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.project-name:hover{text-decoration:underline}.project-badges{display:flex;gap:6px;flex-shrink:0}.quality-score{background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:2px 8px;border-radius:6px}.badge-warning{background:var(--warn-soft);color:var(--warn);font-size:11px;font-weight:600;padding:2px 6px;border-radius:6px}.badge-fork{background:var(--green-soft);color:var(--green);font-size:11px;font-weight:600;padding:2px 6px;border-radius:6px}.project-desc{font-size:13px;color:var(--text-secondary);margin:0 0 10px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.project-stats{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:8px}.stat-group{display:flex;align-items:center;gap:8px}.stat-stars,.stat-forks,.stat-spd{font-size:12px;color:var(--text-secondary);white-space:nowrap}.meta-group{display:flex;align-items:center;gap:6px}.meta-lang,.meta-topics,.meta-updated{font-size:11px;color:var(--muted);background:#f1f5f9;padding:1px 6px;border-radius:4px;white-space:nowrap}.meta-topics{color:var(--accent);background:var(--accent-soft)}.sub-heading{font-size:15px;font-weight:600;color:var(--warn);margin:0 0 10px}.event-brief{background:var(--accent-soft);border:1px solid var(--border);border-radius:8px;padding:12px;margin-bottom:16px}.event-brief-item{display:flex;align-items:center;gap:10px;padding:6px 0}.event-brief-item+.event-brief-item{border-top:1px solid var(--border);margin-top:6px;padding-top:12px}.event-brief-count{background:var(--accent);color:#fff;font-size:11px;font-weight:700;padding:2px 6px;border-radius:4px;flex-shrink:0}.event-brief-title{font-size:14px;font-weight:600;margin:0;flex:1}.event-brief-title a{color:inherit;text-decoration:none}.event-brief-title a:hover{text-decoration:underline}.event-brief-time{font-size:12px;color:var(--muted);flex-shrink:0}.source-heading{font-size:13px;font-weight:600;margin:0 0 8px 8px}.source-heading a{color:var(--accent);text-decoration:none}.source-heading a:hover{text-decoration:underline}.news-summary-list{list-style:none;padding:0;margin:0}.news-summary-item{padding:8px 0 8px 12px;border-left:3px solid var(--border);margin-bottom:8px}.news-summary-item:hover{border-left-color:var(--accent)}.news-summary-title{font-weight:500;color:var(--text);text-decoration:none;font-size:14px;display:block;margin-bottom:4px}.news-summary-title:hover{color:var(--accent)}.news-summary-excerpt{font-size:12px;color:var(--text-secondary);margin:0 0 4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.news-summary-time{font-size:11px;color:var(--muted)}.empty-state{color:var(--muted);font-size:13px;text-align:center;padding:20px}.status-line{text-align:center;color:var(--muted);padding:20px}.status-error{color:var(--red)}.reference-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}.reference-card{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px}.reference-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.reference-name{font-weight:700;color:var(--accent);text-decoration:none}.reference-name:hover{text-decoration:underline}.reference-category-badge{font-size:11px;padding:1px 6px;border-radius:4px;background:var(--accent-soft);color:var(--accent)}.reference-desc{font-size:12px;color:var(--text-secondary);margin:0 0 6px}.reference-footer{display:flex;gap:8px;font-size:11px;color:var(--muted)}.reference-link{color:var(--accent);text-decoration:none}.reference-link:hover{text-decoration:underline}@media (max-width: 640px){.app{padding:16px 12px 40px}.app-title{font-size:22px}.app-header,.project-header{flex-direction:column;align-items:flex-start}.project-badges{align-self:flex-start}.event-brief-item{flex-direction:column;align-items:flex-start}.briefing-section{padding:12px}}