refine Semi UI track replay summary

vehicle-data-platform/apps/web/src/v2/pages/TrackPage.tsx

@@ -393,7 +393,12 @@ export default function TrackPage() {
     <section className="v2-track-stage">
       <TrackMap points={points} stops={track?.stops ?? []} activeIndex={boundedIndex} showStops={showStops} follow={follow} followDurationMs={playing ? Math.max(40, trackPlaybackInterval(playbackSpeed) - 10) : 180} onSelectIndex={selectIndex} onFollowChange={setFollow} />
 
-      {railCollapsed && track?.points.length ? <Button className="v2-track-rail-expand" theme="light" aria-label="打开轨迹详情" icon={<IconList />} onClick={() => setRailCollapsed(false)}>轨迹详情</Button> : null}
+      {railCollapsed && track?.points.length ? <Button className="v2-track-rail-expand" theme="light" aria-label="打开轨迹详情" icon={<IconList />} onClick={() => setRailCollapsed(false)}>
+        <span className="v2-track-rail-expand-copy">
+          <strong>轨迹详情</strong>
+          <small>{number(track.summary.distanceKm)} km · {track.stops.length} 个停留</small>
+        </span>
+      </Button> : null}
       <div className="v2-track-stage-tools" role="toolbar" aria-label="地图轨迹工具">
         <Button theme="borderless" aria-label={follow ? '关闭车辆跟随' : '开启车辆跟随'} className={follow ? 'is-active' : ''} icon={<IconMapPin />} disabled={!points.length} onClick={() => setFollow((value) => !value)}>{follow ? '跟随车辆' : '自由浏览'}</Button>
         <Button theme="borderless" aria-label={showStops ? '隐藏停留点' : '显示停留点'} className={showStops ? 'is-active' : ''} icon={showStops ? <IconEyeOpened /> : <IconEyeClosed />} disabled={!track?.stops.length} onClick={() => setShowStops((value) => !value)}>停留点</Button>