:root{--bg-dark:#0a0e17;--bg-card:#111827;--bg-card-hover:#1a2234;--primary:#00f0ff;--primary-dim:#00f0ff26;--secondary:#a855f7;--success:#0f8;--warning:#fa0;--danger:#f36;--text-primary:#fff;--text-secondary:#89a;--border:#00f0ff33}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-dark);color:var(--text-primary);min-height:100vh;font-family:Noto Sans SC,sans-serif}.bg-grid{z-index:0;background-color:#0000;background-image:linear-gradient(#00f0ff08 1px,#0000 1px),linear-gradient(90deg,#00f0ff08 1px,#0000 1px);background-position:0 0,0 0;background-repeat:repeat,repeat;background-size:30px 30px;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;position:fixed;inset:0}.app-container{z-index:1;min-height:100vh;display:flex;position:relative}.sidebar{background:var(--bg-card);border-right:1px solid var(--border);flex-direction:column;width:70px;padding:15px 0;display:flex}.logo{justify-content:center;margin-bottom:15px;padding:15px;display:flex}.logo-icon{background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:8px;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex}.nav-item{color:var(--text-secondary);cursor:pointer;border-left:3px solid #0000;justify-content:center;padding:12px;font-size:18px;display:flex}.nav-item:hover,.nav-item.active{background:var(--primary-dim);color:var(--primary);border-left-color:var(--primary)}.main-content{flex:1;padding:15px 20px;overflow-y:auto}.header{justify-content:space-between;align-items:center;margin-bottom:15px;display:flex}.page-title{align-items:center;gap:10px;font-family:Orbitron,sans-serif;font-size:20px;font-weight:700;display:flex}.page-title:before{content:"";background:linear-gradient(180deg,var(--primary),var(--secondary));border-radius:2px;width:3px;height:22px}.map-section{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;margin-bottom:15px;padding:15px}.city-tabs{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.city-tab{border:1px solid var(--border);cursor:pointer;background:#0000004d;border-radius:20px;padding:8px 16px;font-size:12px;transition:all .2s}.city-tab:hover{border-color:var(--primary)}.city-tab.active{background:var(--primary-dim);border-color:var(--primary);color:var(--primary)}.city-tab .count{opacity:.7;margin-left:6px;font-size:11px}.map-chart{background:#1a1f2e;border-radius:8px;width:100%;height:320px;min-height:320px}.map-legend{background:#0000004d;border-radius:6px;flex-wrap:wrap;justify-content:center;gap:25px;margin-top:10px;padding:10px;display:flex}.legend-item{align-items:center;gap:6px;font-size:14px;display:flex}.legend-dot{border-radius:50%;width:10px;height:10px}.legend-dot.playing{background:var(--primary);box-shadow:0 0 5px var(--primary)}.legend-dot.online{background:#4a90d9}.legend-dot.offline{background:#555}.legend-dot.alarm{background:var(--danger);box-shadow:0 0 5px var(--danger)}.legend-count{margin-left:3px;font-family:Orbitron,sans-serif;font-weight:600}.section-title{color:var(--primary);margin-bottom:12px;font-family:Orbitron,sans-serif;font-size:14px}.robot-grid{grid-template-columns:repeat(5,1fr);gap:10px;display:grid}.robot-card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:10px;transition:all .2s}.robot-card:hover{background:var(--bg-card-hover);border-color:var(--primary)}.robot-header{justify-content:space-between;align-items:center;margin-bottom:6px;display:flex}.robot-id{color:var(--primary);font-family:Orbitron,sans-serif;font-size:12px}.robot-status{border-radius:8px;align-items:center;gap:3px;padding:2px 6px;font-size:12px;display:flex}.robot-status.playing{color:var(--primary);background:#00f0ff26}.robot-status.online{color:var(--success);background:#00ff8826}.robot-status.offline,.robot-status.alarm{color:var(--danger);background:#ff336626}.status-dot{border-radius:50%;width:5px;height:5px;animation:2s infinite pulse}.status-dot.playing{background:var(--primary)}.status-dot.online{background:var(--success)}.status-dot.offline{background:var(--danger)}.status-dot.alarm{background:var(--danger);animation:1s infinite blink}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes blink{0%,to{opacity:1}50%{opacity:.5}}.robot-song{white-space:nowrap;text-overflow:ellipsis;margin-bottom:3px;font-size:14px;font-weight:500;overflow:hidden}.robot-info-row{color:var(--text-secondary);justify-content:space-between;font-size:9px;display:flex}.progress-mini{background:#ffffff1a;border-radius:2px;height:3px;margin:6px 0;overflow:hidden}.progress-mini .fill{background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:2px;height:100%}.robot-controls{grid-template-columns:repeat(4,1fr);gap:3px;margin-bottom:6px;display:grid}.ctrl-btn{border:1px solid var(--border);color:var(--text-primary);cursor:pointer;background:0 0;border-radius:4px;padding:4px 3px;font-size:14px;transition:all .2s}.ctrl-btn:hover{background:var(--primary-dim);border-color:var(--primary);color:var(--primary)}.ctrl-btn:disabled{opacity:.3;cursor:not-allowed}.song-list-mini{border-top:1px solid var(--border);max-height:150px;padding-top:6px;overflow-y:auto}.song-list-mini::-webkit-scrollbar{width:4px}.song-list-mini::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.song-item-mini{cursor:pointer;background:#0003;border-radius:4px;justify-content:space-between;margin-bottom:3px;padding:4px 6px;font-size:14px;transition:all .2s;display:flex}.song-item-mini:hover{background:var(--primary-dim)}.song-item-mini.playing{background:var(--primary-dim);border:1px solid var(--primary)}@media (width<=1400px){.robot-grid{grid-template-columns:repeat(3,1fr)}}@media (width<=1000px){.robot-grid{grid-template-columns:repeat(2,1fr)}}