:root{--bg-primary:#fafbfc;--bg-secondary:#fff;--bg-tertiary:#f0f2f5;--bg-sidebar:#f5f6f8;--text-primary:#1d2129;--text-secondary:#4e5969;--text-muted:#86909c;--border-color:#e5e6eb;--accent:#165dff;--accent-light:#e8f0fe;--star:#f7ba1e;--score-high:#00b42a;--score-mid:#ff7d00;--score-low:#86909c;--tag-bg:#f2f3f5;--tag-text:#4e5969;--rail-color:#e5e6eb;--card-shadow:0 1px 3px #0000000a;--card-hover-shadow:0 2px 8px #00000014;--header-height:0px;--sidebar-width:220px;--divider-color:#e5e6eb}@media (prefers-color-scheme:dark){:root{--bg-primary:#060814;--bg-secondary:#0d1117;--bg-tertiary:#161b22;--bg-sidebar:#0a0e17;--text-primary:#e6edf3;--text-secondary:#8b949e;--text-muted:#6e7681;--border-color:#21262d;--accent:#388bff;--accent-light:#1a2332;--star:#e3b341;--score-high:#3fb950;--score-mid:#d29922;--score-low:#6e7681;--tag-bg:#1c2128;--tag-text:#8b949e;--rail-color:#21262d;--card-shadow:0 1px 3px #0003;--card-hover-shadow:0 2px 8px #0006;--divider-color:#21262d}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;height:100%}@media (prefers-color-scheme:dark){html{--lightningcss-light: ;--lightningcss-dark:initial}}body{min-height:100%;color:var(--text-primary);background:var(--bg-primary);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.app-shell{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border-color);z-index:100;flex-direction:column;padding:20px 16px;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-brand{color:var(--text-primary);align-items:center;gap:8px;margin-bottom:8px;font-size:20px;font-weight:700;display:flex}.sidebar-brand-dot{background:var(--accent);border-radius:50%;width:10px;height:10px;display:inline-block}.sidebar-subtitle{color:var(--text-muted);margin-bottom:28px;font-size:12px}.side-nav{flex-direction:column;flex:1;gap:4px;display:flex}.side-nav-item{color:var(--text-secondary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;width:100%;padding:8px 12px;font-size:14px;transition:background .15s,color .15s;display:flex}.side-nav-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.side-nav-item.active{background:var(--accent-light);color:var(--accent);font-weight:600}.side-nav-icon{text-align:center;width:22px;font-size:18px}.sidebar-footer{border-top:1px solid var(--border-color);color:var(--text-muted);padding-top:16px;font-size:12px;line-height:1.8}.theme-toggle{align-items:center;gap:8px;margin-bottom:12px;display:flex}.theme-toggle-btn{background:var(--border-color);cursor:pointer;border:none;border-radius:11px;width:40px;height:22px;transition:background .2s;position:relative}.theme-toggle-btn:after{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s;position:absolute;top:2px;left:2px}.theme-toggle-btn.dark{background:var(--accent)}.theme-toggle-btn.dark:after{transform:translate(18px)}.app-main{margin-left:var(--sidebar-width);flex-direction:column;flex:1;min-height:100vh;display:flex}.app-mobile-bar{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:50;align-items:center;gap:12px;padding:12px 16px;display:none;position:sticky;top:0}.mobile-menu-btn{cursor:pointer;color:var(--text-primary);background:0 0;border:none;padding:4px;font-size:22px}.mobile-brand{font-size:17px;font-weight:700}.page{width:100%;max-width:760px;margin:0 auto;padding:24px 20px 60px}.page-title{color:var(--text-primary);font-size:22px;font-weight:700}.page-subtitle{color:var(--text-muted);margin-top:2px;font-size:13px}.page-header{background:var(--bg-secondary);border:1px solid var(--border-color);box-shadow:var(--card-shadow);border-radius:12px;margin-bottom:20px;padding:20px 24px}.header-row{justify-content:space-between;align-items:center;display:flex}.segmented{background:var(--bg-tertiary);-webkit-overflow-scrolling:touch;border-radius:8px;gap:2px;padding:3px;display:flex;overflow-x:auto}.segmented::-webkit-scrollbar{display:none}.segmented-item{color:var(--text-secondary);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:6px;flex-shrink:0;padding:5px 14px;font-size:13px;transition:background .15s,color .15s}.segmented-item:hover{color:var(--text-primary)}.segmented-item.active{background:var(--bg-secondary);color:var(--text-primary);font-weight:600;box-shadow:0 1px 2px #0000000f}.feed-toolbar-row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.feed-filter-search-row{gap:6px;margin-left:auto;display:flex}.feed-filter-search-input{border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);border-radius:6px;outline:none;width:180px;padding:5px 10px;font-size:13px;transition:border-color .15s}.feed-filter-search-input:focus{border-color:var(--accent)}.feed-filter-search-input::placeholder{color:var(--text-muted)}.btn{cursor:pointer;border:none;border-radius:6px;padding:5px 14px;font-size:13px;font-weight:500;transition:background .15s,opacity .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{opacity:.85}.btn-sm{padding:4px 12px;font-size:12px}.divider{background:var(--divider-color);height:1px;margin:16px 0}.timeline{position:relative}.timeline-day{margin-bottom:0}.timeline-day-head{align-items:center;gap:12px;margin-bottom:12px;padding-left:8px;display:flex}.timeline-date{color:var(--text-primary);font-size:15px;font-weight:600}.timeline-day-items{position:relative}.timeline-item{gap:14px;padding-bottom:4px;display:flex;position:relative}.timeline-time{text-align:right;width:48px;color:var(--text-muted);font-variant-numeric:tabular-nums;flex-shrink:0;padding-top:14px;font-size:12px}.timeline-rail{background:var(--rail-color);width:1px;position:absolute;top:36px;bottom:0;left:62px}.timeline-item:last-child .timeline-rail{display:none}.timeline-rail:before{content:"";background:var(--accent);border:2px solid var(--bg-primary);border-radius:50%;width:9px;height:9px;position:absolute;top:-2px;left:-4px}.timeline-card{background:var(--bg-secondary);border:1px solid var(--border-color);box-shadow:var(--card-shadow);border-radius:10px;flex:1;min-width:0;margin-bottom:10px;padding:14px 18px;transition:box-shadow .15s}.timeline-card:hover{box-shadow:var(--card-hover-shadow)}.timeline-card-head{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:6px;display:flex}.timeline-head-left{flex:1;align-items:center;gap:8px;min-width:0;display:flex}.timeline-source-avatar{object-fit:cover;border-radius:50%;flex-shrink:0;width:22px;height:22px}.timeline-source-name{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.timeline-head-right{flex-shrink:0;align-items:center;gap:10px;display:flex}.timeline-score{background:var(--tag-bg);border-radius:6px;padding:2px 8px;font-size:13px;font-weight:700}.timeline-score.high{color:var(--score-high)}.timeline-score.mid{color:var(--score-mid)}.timeline-score.low{color:var(--score-low)}.timeline-star{cursor:pointer;color:var(--text-muted);background:0 0;border:none;padding:2px;font-size:15px}.timeline-star.active{color:var(--star)}.timeline-card-title{color:var(--text-primary);margin-bottom:4px;font-size:15px;font-weight:600;line-height:1.5}.timeline-card-title a:hover{color:var(--accent)}.timeline-card-summary{color:var(--text-secondary);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:6px;font-size:13px;line-height:1.6;display:-webkit-box;overflow:hidden}.timeline-tags{flex-wrap:wrap;gap:6px;margin-bottom:6px;display:flex}.timeline-tag{background:var(--tag-bg);color:var(--tag-text);border-radius:4px;padding:1px 8px;font-size:11px;font-weight:500;display:inline-block}.timeline-reason{color:var(--text-muted);border-left:2px solid var(--accent);padding-left:10px;font-size:12px;font-style:italic;line-height:1.5}.timeline-related{border-top:1px solid var(--border-color);margin-top:12px;padding-top:10px}.timeline-related-label{color:var(--text-muted);margin-bottom:6px;font-size:11px;font-weight:500}.timeline-related-link{color:var(--text-secondary);border-left:2px solid var(--border-color);margin-bottom:2px;padding:4px 0 4px 8px;font-size:12px;text-decoration:none;transition:border-color .15s,color .15s;display:block}.timeline-related-link:hover{color:var(--accent);border-left-color:var(--accent)}.timeline-related-source{background:var(--tag-bg);color:var(--tag-text);border-radius:3px;flex-shrink:0;margin-right:6px;padding:1px 5px;font-size:10px;display:inline-block}.timeline-related-title{line-height:1.4}.empty-state{text-align:center;color:var(--text-muted);padding:60px 20px}.empty-state-icon{margin-bottom:12px;font-size:40px}.empty-state-text{font-size:15px}.empty-state-sub{margin-top:4px;font-size:13px}.sidebar-overlay{z-index:99;background:#0006;display:none;position:fixed;inset:0}@media (max-width:768px){.sidebar{transition:transform .2s;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay.show{display:block}.app-main{margin-left:0}.app-mobile-bar{display:flex}.page{padding:16px 12px 40px}.page-header{border-left:none;border-right:none;border-radius:0;padding:14px 16px}.feed-toolbar-row{flex-direction:column;align-items:stretch}.feed-filter-search-row{margin-left:0}.feed-filter-search-input{width:100%}.timeline-time{width:40px;padding-top:12px;font-size:11px}.timeline-rail{left:54px}.timeline-card{padding:12px 14px}}