only preserve XYBS1 (clockwise)

      // --- Data Placeholders ---

      // 在这里填入你的线路GeoJSON坐标数据

      geojson_XYBS1: [],

      geojson_XYBS2: [],

      geojson_SEV1: [],

      // --- State Management ---

      busLocations: [],

    async loadGeoJSONLines() {

      try {

        const [XYBS1Res, XYBS2Res, SEV1Res] = await Promise.all([

          axios.get('https://bus.sustcra.com/static/lines/XYBS1.json'),

          axios.get('https://bus.sustcra.com/static/lines/XYBS2.json'),

          axios.get('https://bus.sustcra.com/static/lines/SEV1.json'),

        const [XYBS1Res] = await Promise.all([

          axios.get('https://bus.sustcra.com/static/lines/XYBS1_clockwise.json')

        ]);

        // console.log('XYBS1:', XYBS1Res.data);

        // console.log('XYBS2:', XYBS2Res.data);

        // console.log('SEV1:', SEV1Res.data);

        this.geojson_XYBS1 = XYBS1Res.data;

        this.geojson_XYBS2 = XYBS2Res.data;

        this.geojson_SEV1 = SEV1Res.data;

      } catch (error) {

        console.error("Failed to fetch GeoJSON lines:", error);

      }

    setupMapLayers() {

      // 添加线路图层

      this.addRouteLayer('line1', this.geojson_XYBS1, '#f7911d');

      this.addRouteLayer('line2', this.geojson_XYBS2, '#29abe2');

      this.addRouteLayer('line3', this.geojson_SEV1, '#7030a1');

      console.log("XYBS1 route layer added.");

      // 添加站点、建筑和校门图层

      this.addSymbolLayer('stations', this.allStationsGeoJSON, 'bus-station-icon', 0.075, [0, 1.25]);

    // --- 4. Event Handlers & Interaction ---

    setupMapListeners() {

      this.map.on('click', 'stations-layer', this.onStationClick);

      // this.map.on('click', 'stations-layer', this.onStationClick);

      this.map.on('mouseenter', 'stations-layer', () => this.map.getCanvas().style.cursor = 'pointer');

      this.map.on('mouseleave', 'stations-layer', () => this.map.getCanvas().style.cursor = '');

    },