/* Campus product UI: native CSS and the existing university brand. */
:root{color-scheme:light;font-family:"Segoe UI","PingFang SC","Microsoft YaHei UI","Microsoft YaHei",sans-serif;font-synthesis:none;--ink:#20384f;--muted:#5a7084;--blue:#184f87;--accent:#2f77bc;--page:#f5f8fc;--surface:#fff;--soft:#eef4fa;--selected:#e5eff9;--line:#d5e0eb;--radius:14px;color:var(--ink);background:var(--page)}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;min-height:100dvh;background:var(--page)}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;transition:background 150ms,border-color 150ms,transform 150ms}button:not(:disabled):active{transform:translateY(1px)}button:disabled,select:disabled,input:disabled{cursor:not-allowed}:is(button,a,input,select,summary):focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.shell{max-width:1680px;margin:auto;padding:16px 28px 12px}.header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px;padding-bottom:16px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:14px;min-width:0}.brand-mark{position:relative;display:block;width:48px;height:48px;flex:none;border-radius:50%;background:#fff;overflow:hidden;border:1px solid var(--line)}.brand-mark img{position:absolute;width:60px;max-width:none;height:auto;top:50%;left:50%;transform:translate(-50%,-50%)}h1{margin:0;color:var(--blue);font-size:19px;font-weight:650;line-height:1.5;letter-spacing:0}.header-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-shrink:0}.text-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 12px;border:0;border-radius:8px;background:transparent;color:var(--blue);font-size:13px;line-height:1.4;text-decoration:none;white-space:nowrap}.text-button:hover{background:var(--selected)}
.overview{display:grid;grid-template-columns:.85fr 1.35fr 1fr 1.2fr;align-items:center;gap:16px;padding:22px 0}.scene-title h2{margin:0;color:var(--ink);font-size:20px;font-weight:600}.metric{display:grid;gap:4px;min-width:0;padding-left:24px;border-left:1px solid var(--line)}.metric>span{font-size:13px;color:var(--muted)}.metric strong{font-size:34px;line-height:1.2;font-weight:600;letter-spacing:-1px;color:var(--blue);font-variant-numeric:tabular-nums}.metric small{font-size:12px;line-height:1.6;color:var(--muted)}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}.map-panel{position:sticky;top:16px;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:60px;padding:8px 18px;font-size:13px}.panel-heading>div{display:flex;align-items:center;gap:8px;min-width:0}.panel-heading strong{font-weight:600}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent)}.divider{color:var(--muted);margin:0 3px}#clock{display:inline-flex;align-items:center;min-height:34px;padding:4px 10px;border-radius:8px;background:var(--selected);color:var(--blue);font-size:20px;font-weight:700;line-height:1.3;font-variant-numeric:tabular-nums;white-space:nowrap}
.map-stage{position:relative;height:clamp(470px,calc(100dvh - 390px),850px);background:#edf3f8;overflow:hidden;touch-action:none}#map{display:block;width:100%;height:100%;cursor:grab}#map:active{cursor:grabbing}.map-label{position:absolute;top:16px;left:16px;padding:8px 11px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--blue);font-size:12px;font-weight:600;pointer-events:none}.map-tools{position:absolute;top:16px;right:16px;display:flex;flex-direction:column;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:0 3px 12px #184f8710}.map-tools button{width:44px;height:44px;background:var(--surface);border:0;color:var(--blue);font-size:22px}.map-tools button:hover{background:var(--selected)}.map-tools button+button{border-top:1px solid var(--line)}.map-hint{position:absolute;bottom:14px;left:16px;padding:5px 8px;border-radius:6px;background:#ffffffed;font-size:11px;color:#3f596f;pointer-events:none}
.legend{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding:13px 18px;background:var(--surface);border-bottom:1px solid var(--line);color:var(--muted);font-size:12px}.legend span{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.legend i{display:inline-block;width:7px;height:7px;flex:none;border-radius:50%}.electric{background:#2687bf}.bicycle{background:#7758a5}.motor{background:#cb554e}.legend .queue{width:9px;height:9px;background:transparent;border:2px solid #c57b16}.legend .roundabout{width:13px;height:3px;border-radius:2px;background:#1264b1}.legend .extension{width:13px;height:2px;border-radius:0;border-top:2px dashed #7892b6}
.playback{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:12px 18px}.primary,.secondary{min-height:44px;padding:10px 16px;border:1px solid transparent;border-radius:8px;font-size:13px;white-space:nowrap}.primary{color:#fff;background:var(--blue)}.primary:hover:not(:disabled){background:#123e6c}.secondary{color:var(--blue);background:var(--soft);border-color:var(--line)}.secondary:hover:not(:disabled){background:var(--selected)}.playback>button:disabled{color:var(--muted);background:var(--soft);border-color:var(--line)}.speed-control{display:flex;align-items:center;gap:4px;margin-left:auto;font-size:12px;color:var(--muted)}.speed-control>span{margin-right:4px}.speed-control button{min-width:44px;min-height:44px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:13px}.speed-control .selected{color:var(--blue);background:var(--selected);font-weight:650}.connection-error{flex-basis:100%;color:#a13e35}
aside{display:flex;flex-direction:column;gap:16px;min-width:0}.card{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.section-title{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:18px}.section-title h2{margin:0;font-size:15px;font-weight:650}.section-title>span{color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.section-title .text-button{min-height:44px;padding:5px 8px;font-size:12px;margin:-10px -8px -10px 0}.segmented{display:flex;gap:4px;padding:4px;margin-bottom:20px;border-radius:10px;background:var(--soft)}.segmented button{flex:1;min-height:44px;padding:8px 6px;border:0;border-radius:7px;color:var(--muted);background:transparent;font-size:13px}.segmented .selected{color:var(--blue);background:var(--surface);box-shadow:0 1px 4px #184f8712;font-weight:600}
.field{display:block;margin:0 0 18px}.field>span{display:flex;justify-content:space-between;gap:8px;margin-bottom:4px;font-size:13px;line-height:1.6}.field output{flex-shrink:0;color:var(--blue);font-weight:600;font-variant-numeric:tabular-nums}.field small,.fine{display:block;color:var(--muted);font-size:12px;line-height:1.7}.fine{margin:10px 0 0}.field input[type=range]{display:block;width:100%;min-height:44px;margin:0;accent-color:var(--blue);cursor:pointer}.field select,.scenario-field select,.scenario-field input{width:100%;min-height:44px;padding:10px 12px;border:1px solid #8296aa;border-radius:8px;background:var(--surface);color:var(--ink);font-size:13px}.field input:disabled{cursor:not-allowed}.field:last-child{margin-bottom:0}.scenario-field{display:grid;gap:7px;font-size:12px;color:var(--muted);margin:14px 0}.survey-inputs{display:grid;grid-template-columns:1fr 1fr;gap:12px}#departureSceneState{margin:4px 0 18px;font-size:11px}#departureApplyStatus{padding:10px 12px;background:var(--soft);border-radius:8px}
.survey-progress{padding:14px 0 18px;margin-bottom:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.survey-counts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px;color:var(--muted);font-size:11px}.survey-counts b{display:block;margin-top:5px;color:var(--ink);font-size:19px;font-weight:600;font-variant-numeric:tabular-nums}.survey-chart-title{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.survey-chart-title small{font-size:11px}.survey-chart{display:block;width:100%;height:72px;margin-top:10px}.chart-caption{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:10px;line-height:1.6}#chart{display:block;width:100%;height:80px}.detail-stats{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.detail-stats b{margin-left:4px;color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}
.junction{display:flex;align-items:center;gap:12px;width:100%;padding:12px 10px;margin-bottom:8px;background:var(--surface);border:1px solid var(--line);border-radius:8px;text-align:left}.junction.selected{background:var(--selected);border-color:#93b6d7}.junction-id{display:grid;place-items:center;flex:none;width:32px;height:32px;border-radius:8px;background:var(--soft);color:var(--blue);font-size:14px;font-weight:600}.junction-name strong{font-size:13px;font-weight:550}.junction-count{margin-left:auto;color:var(--blue);font-size:24px;font-variant-numeric:tabular-nums}.junction-count small{margin-left:4px;color:var(--muted);font-size:11px}.junction-detail{padding-top:14px;margin-top:16px;border-top:1px solid var(--line)}.junction-detail>div{display:flex;justify-content:space-between;gap:8px;font-size:12px;color:var(--muted)}.junction-detail strong{color:var(--blue);font-weight:600}.junction-detail p{margin:9px 0 0;font-size:12px;line-height:1.6;color:var(--muted)}.phase-list{display:grid;gap:6px;margin-top:14px}.phase-row{display:grid;grid-template-columns:minmax(70px,1fr) auto auto;align-items:center;gap:8px;padding:10px;border-radius:8px;color:#845b16;background:#fff5df;font-size:11px}.phase-row strong{font-size:12px;font-weight:600;font-variant-numeric:tabular-nums}.phase-row small{font-size:11px}.phase-row.is-open{color:#246144;background:#edf7f0}.phase-row.is-red{color:#963d35;background:#fff0ee}.phase-row.is-yellow{color:#845b16;background:#fff5df}.turn-summary{padding:10px;margin:8px 0 0;color:var(--muted);background:var(--soft);border-radius:8px;font-size:12px}
.signal-modes{margin-bottom:14px}.signal-row{display:grid;grid-template-columns:24px 42px 1fr auto;gap:7px;align-items:center;padding:11px 10px;margin-bottom:8px;background:var(--soft);border-radius:8px;font-size:12px}.signal-row strong{font-size:12px;font-weight:600;font-variant-numeric:tabular-nums}.signal-row small{font-size:11px}.lamps{display:flex;gap:3px;padding:5px;border-radius:5px;background:#20384f}.lamps i{display:block;width:7px;height:7px;border-radius:50%;background:#637485}.signal-row[data-color=red]{color:#963d35;background:#fff0ee}.signal-row[data-color=yellow]{color:#845b16;background:#fff5df}.signal-row[data-color=green]{color:#246144;background:#edf7f0}.signal-row[data-color=red] .red{background:#f15a54}.signal-row[data-color=yellow] .yellow{background:#f3c243}.signal-row[data-color=green] .green{background:#38cf8b}.signal-reason{padding:12px;margin:14px 0 4px;border-radius:8px;background:var(--soft);color:var(--muted);font-size:12px;line-height:1.7}
footer{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:8px;color:var(--muted);font-size:12px;line-height:1.7}footer p{margin:12px 0}.error{position:absolute;top:45%;left:10%;right:10%;padding:16px;background:#fff0ee;color:#963d35;border-radius:8px;font-size:14px;line-height:1.6}
@media(max-width:1199px){.shell{padding:16px 20px}.workspace{grid-template-columns:minmax(0,1fr) 310px;gap:16px}.card{padding:18px}.metric{padding-left:18px}.metric strong{font-size:30px}.map-stage{height:max(500px,calc(100dvh - 346px))}.legend{gap:10px 14px;font-size:11px}}
@media(max-width:900px){.workspace{grid-template-columns:1fr}.map-panel{position:static}.map-stage{height:550px}aside{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.controls{grid-column:1/-1}.header{flex-wrap:wrap;gap:12px}.header-right{flex-wrap:wrap}.overview{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.scene-title{grid-column:1/-1}.metric{padding-left:16px}.metric:nth-child(2){padding-left:0;border:0}}
@media(max-width:600px){.shell{padding:12px 16px}.header{padding-bottom:12px}.brand{gap:10px}.brand-mark{width:40px;height:40px}.brand-mark img{width:50px}h1{font-size:16px}.header-right{width:100%;justify-content:flex-start;gap:6px}.header-right>.text-button{padding:8px}.overview{padding:20px 0;gap:16px 8px}.scene-title h2{font-size:18px}.metric{padding-left:10px;gap:5px}.metric strong{font-size:25px;letter-spacing:-.7px}.metric>span{font-size:11px}.metric small{font-size:11px}.panel-heading{min-height:58px;padding:8px 12px}.panel-heading .text-button{padding:8px;font-size:12px}.panel-heading>div{gap:6px}#clock{font-size:18px;padding:4px 7px}.map-stage{height:420px}.map-label{top:12px;left:12px}.map-tools{top:12px;right:12px}.map-hint{left:12px;font-size:10px}.legend{padding:12px;gap:8px 12px}.playback{padding:12px}.speed-control{gap:0}.speed-control>span{display:none}.primary,.secondary{padding:10px 12px}aside{grid-template-columns:1fr}.controls{grid-column:auto}.card{padding:20px}.field>span{font-size:14px}.field select,.scenario-field select,.scenario-field input{font-size:16px}footer{align-items:flex-start}footer p{flex:1;font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}

.map-tools button:focus-visible{outline-offset:-4px}
.behavior-rule>output{display:block;font-size:14px;line-height:1.6}