:root{--bg-primary: #f8f9fc;--bg-secondary: #ffffff;--bg-tertiary: #f0f2f7;--text-primary: #1a1d2e;--text-secondary: #5a5f7a;--text-muted: #8b90a7;--border-light: #e4e7f0;--border-medium: #d0d4e3;--accent-blue: #4a90d9;--accent-green: #34c759;--accent-orange: #ff9500;--accent-red: #ff3b30;--accent-purple: #af52de;--accent-teal: #5ac8fa;--shadow-sm: 0 1px 3px rgba(0,0,0,.06);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--shadow-lg: 0 8px 30px rgba(0,0,0,.1);--shadow-xl: 0 16px 48px rgba(0,0,0,.12);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;overflow:hidden}#root{height:100vh;width:100vw}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-container{display:flex;height:100vh;width:100vw;overflow:hidden}.header-bar{position:fixed;top:0;left:0;right:0;height:56px;background:#ffffffeb;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;padding:0 20px;z-index:1000;box-shadow:var(--shadow-sm)}.header-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text-primary)}.header-logo span{font-size:24px}.search-box{display:flex;align-items:center;background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:24px;padding:8px 16px;width:360px;transition:all .2s}.search-box:focus-within{border-color:var(--accent-blue);box-shadow:0 0 0 3px #4a90d926;background:#fff}.search-box input{border:none;outline:none;background:transparent;font-size:14px;width:100%;color:var(--text-primary);font-family:var(--font-family)}.search-box input::placeholder{color:var(--text-muted)}.search-icon{margin-right:8px;color:var(--text-muted);font-size:16px}.search-results{position:absolute;top:52px;left:50%;transform:translate(-50%);width:360px;background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);border:1px solid var(--border-light);max-height:300px;overflow-y:auto;z-index:1001}.search-result-item{padding:10px 16px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-light);transition:background .15s}.search-result-item:hover{background:var(--bg-tertiary)}.search-result-item:last-child{border-bottom:none}.search-result-name{font-size:13px;font-weight:500}.search-result-aqi{font-size:12px;font-weight:600;padding:2px 8px;border-radius:10px;color:#fff}.header-actions{display:flex;align-items:center;gap:8px}.header-btn{padding:6px 14px;border-radius:20px;border:1px solid var(--border-light);background:#fff;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;font-family:var(--font-family);color:var(--text-secondary);display:flex;align-items:center;gap:6px}.header-btn:hover{background:var(--bg-tertiary);border-color:var(--border-medium)}.header-btn.active{background:var(--accent-blue);color:#fff;border-color:var(--accent-blue)}.map-container{flex:1;height:100vh;padding-top:56px;position:relative}.map-container .leaflet-container{height:100%;width:100%;background:#e8ecf1}.aqi-legend{position:absolute;bottom:30px;left:20px;background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius-md);padding:14px 18px;box-shadow:var(--shadow-md);border:1px solid var(--border-light);z-index:800}.aqi-legend h4{font-size:12px;font-weight:600;color:var(--text-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}.aqi-legend-item{display:flex;align-items:center;gap:8px;margin-bottom:4px;font-size:12px;color:var(--text-secondary)}.aqi-legend-color{width:14px;height:14px;border-radius:4px;flex-shrink:0}.station-counter{position:absolute;bottom:30px;right:20px;background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius-md);padding:12px 18px;box-shadow:var(--shadow-md);border:1px solid var(--border-light);z-index:800;font-size:13px;color:var(--text-secondary)}.station-counter strong{color:var(--accent-blue)}.side-panel{width:480px;height:100vh;padding-top:56px;background:var(--bg-secondary);border-left:1px solid var(--border-light);overflow-y:auto;box-shadow:var(--shadow-lg);transition:transform .3s ease;z-index:900}.side-panel.closed{transform:translate(100%);position:absolute;right:0}.side-panel.open{transform:translate(0)}.panel-close{position:sticky;top:0;background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:12px 16px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-light);z-index:10}.panel-close h3{font-size:14px;font-weight:600}.close-btn{width:28px;height:28px;border-radius:50%;border:none;background:var(--bg-tertiary);cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;transition:all .2s}.close-btn:hover{background:var(--border-light)}.panel-content{padding:16px}.panel-section{margin-bottom:20px;background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:16px;box-shadow:var(--shadow-sm)}.panel-section-title{font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px;display:flex;align-items:center;gap:6px}.aqi-badge{display:inline-flex;align-items:center;justify-content:center;padding:8px 20px;border-radius:var(--radius-xl);color:#fff;font-size:24px;font-weight:700;box-shadow:var(--shadow-md)}.aqi-category-label{font-size:14px;font-weight:500;margin-top:4px}.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stat-card{background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:12px;text-align:center}.stat-card-value{font-size:20px;font-weight:700;color:var(--text-primary)}.stat-card-label{font-size:11px;color:var(--text-muted);margin-top:2px}.pollutant-bar-row{display:flex;align-items:center;margin-bottom:8px;gap:8px}.pollutant-bar-label{width:50px;font-size:12px;font-weight:600;color:var(--text-secondary);flex-shrink:0}.pollutant-bar-track{flex:1;height:20px;background:var(--bg-tertiary);border-radius:10px;overflow:hidden;position:relative}.pollutant-bar-fill{height:100%;border-radius:10px;transition:width .5s ease;min-width:2px}.pollutant-bar-value{font-size:11px;font-weight:600;color:var(--text-secondary);width:45px;text-align:right;flex-shrink:0}.risk-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.risk-card{background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:10px;text-align:center;border:1px solid transparent}.risk-card-icon{font-size:20px;margin-bottom:4px}.risk-card-title{font-size:10px;color:var(--text-muted);margin-bottom:4px}.risk-card-score{font-size:18px;font-weight:700}.risk-card-level{font-size:10px;font-weight:600;margin-top:2px}.risk-low{color:var(--accent-green);border-color:#34c75933}.risk-moderate{color:#f5a623;border-color:#f5a62333}.risk-high{color:var(--accent-orange);border-color:#ff950033}.risk-very-high{color:var(--accent-red);border-color:#ff3b3033}.risk-critical{color:var(--accent-purple);border-color:#af52de33}.disease-category{background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:12px;margin-bottom:10px;border:1px solid var(--border-light)}.disease-category-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer}.disease-category-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600}.disease-category-score{font-size:14px;font-weight:700;padding:2px 10px;border-radius:10px}.disease-list{margin-top:10px}.disease-item{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid var(--border-light);font-size:12px}.disease-item:last-child{border-bottom:none}.disease-item-name{color:var(--text-secondary)}.disease-item-risk{display:flex;align-items:center;gap:6px}.disease-risk-dot{width:8px;height:8px;border-radius:50%}.disease-risk-value{font-weight:600}.symptom-tags{display:flex;flex-wrap:wrap;gap:6px}.symptom-tag{display:flex;align-items:center;gap:4px;padding:4px 10px;border-radius:14px;font-size:11px;font-weight:500;background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-light)}.symptom-tag .likelihood{font-weight:700;font-size:10px}.vulnerable-group{display:flex;align-items:center;gap:10px;padding:8px;background:var(--bg-tertiary);border-radius:var(--radius-sm);margin-bottom:6px;border:1px solid var(--border-light)}.vg-icon{font-size:22px}.vg-info{flex:1}.vg-name{font-size:12px;font-weight:600}.vg-advisory{font-size:10px;color:var(--text-muted);margin-top:2px}.vg-risk{font-size:14px;font-weight:700;padding:2px 8px;border-radius:8px}.recommendation-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.rec-card{background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:10px;border:1px solid var(--border-light)}.rec-card-title{font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;margin-bottom:4px}.rec-card-text{font-size:12px;color:var(--text-secondary);line-height:1.4}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;color:var(--text-muted)}.spinner{width:32px;height:32px;border:3px solid var(--border-light);border-top-color:var(--accent-blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{margin-top:12px;font-size:13px}.panel-tabs{display:flex;border-bottom:1px solid var(--border-light);background:#fffffff2;position:sticky;top:52px;z-index:9}.panel-tab{flex:1;padding:10px;text-align:center;font-size:12px;font-weight:600;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;transition:all .2s;background:none;border-top:none;border-left:none;border-right:none;font-family:var(--font-family)}.panel-tab:hover{color:var(--text-secondary)}.panel-tab.active{color:var(--accent-blue);border-bottom-color:var(--accent-blue)}.aqi-marker-tooltip{text-align:center;font-family:var(--font-family)}.aqi-marker-tooltip .aqi-value{font-size:18px;font-weight:700}.aqi-marker-tooltip .aqi-station{font-size:11px;color:#666;max-width:180px;overflow:hidden;text-overflow:ellipsis}.refresh-indicator{position:absolute;top:200px;right:12px;display:flex;align-items:center;gap:6px;background:#fffffff2;padding:6px 12px;border-radius:20px;font-size:11px;color:var(--text-muted);box-shadow:var(--shadow-sm);border:1px solid var(--border-light);z-index:800}.refresh-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-green);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.exposure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.exposure-card{background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:10px;text-align:center;border:1px solid var(--border-light)}.exposure-period{font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase}.exposure-value{font-size:20px;font-weight:700;color:var(--accent-red);margin:4px 0}.exposure-desc{font-size:10px;color:var(--text-muted);line-height:1.3}.source-toggles{position:absolute;top:60px;right:12px;z-index:1000;background:var(--bg-secondary);border-radius:var(--radius-md);padding:10px 14px;box-shadow:var(--shadow-md);border:1px solid var(--border-light);min-width:160px}.source-toggle-title{font-size:11px;font-weight:600;color:var(--text-secondary);margin-bottom:8px;text-align:center}.source-toggle-item{display:flex;align-items:center;gap:6px;padding:3px 0;cursor:pointer;font-size:11px;color:var(--text-secondary)}.source-toggle-item input[type=checkbox]{width:14px;height:14px;cursor:pointer;accent-color:var(--accent-blue)}.source-toggle-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.source-toggle-label{flex:1;font-weight:500}.source-toggle-count{font-size:9px;color:var(--text-muted)}.timelapse-controls{position:absolute;bottom:80px;left:50%;transform:translate(-50%);z-index:1000;background:var(--bg-secondary);border-radius:var(--radius-lg);padding:14px 18px;box-shadow:var(--shadow-lg);border:1px solid var(--border-light);min-width:280px;max-width:360px}.timelapse-title{font-size:12px;font-weight:700;color:var(--text-primary);text-align:center;margin-bottom:10px}.timelapse-range-btns{display:flex;gap:4px;justify-content:center;margin-bottom:10px}.timelapse-range-btn{padding:4px 14px;border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--bg-tertiary);color:var(--text-secondary);font-size:11px;font-weight:600;cursor:pointer;transition:all .2s}.timelapse-range-btn.active{background:var(--accent-blue);color:#fff;border-color:var(--accent-blue)}.timelapse-range-btn:hover{border-color:var(--accent-blue)}.timelapse-display{text-align:center;margin-bottom:8px}.timelapse-aqi{font-size:28px;font-weight:800}.timelapse-time{font-size:10px;color:var(--text-muted);margin-top:2px}.timelapse-pm25{font-size:10px;color:var(--text-secondary);margin-top:2px}.timelapse-slider{width:100%;height:4px;-webkit-appearance:none;appearance:none;background:var(--border-light);border-radius:2px;outline:none;margin:8px 0}.timelapse-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent-blue);cursor:pointer;box-shadow:var(--shadow-sm)}.timelapse-playback{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:6px}.timelapse-play-btn{padding:4px 16px;border:1px solid var(--accent-blue);border-radius:var(--radius-sm);background:var(--accent-blue);color:#fff;font-size:11px;font-weight:600;cursor:pointer;transition:all .2s}.timelapse-play-btn:hover{opacity:.85}.timelapse-frame-info{font-size:10px;color:var(--text-muted)}.timelapse-load-btn{display:block;margin:4px auto;padding:6px 20px;border:1px solid var(--accent-blue);border-radius:var(--radius-sm);background:transparent;color:var(--accent-blue);font-size:11px;font-weight:600;cursor:pointer;transition:all .2s}.timelapse-load-btn:hover{background:var(--accent-blue);color:#fff}@media(max-width:768px){.side-panel{width:100vw}.search-box{width:200px}.header-logo span:last-child{display:none}.timelapse-controls{min-width:240px;left:50%}.source-toggles{top:50px;right:6px;min-width:140px;padding:8px 10px}}