城市名：字号13px、黑边黄字、最大显示距离2e6

src/scene/CesiumGlobe.js

@@ -605,8 +605,8 @@ export class CesiumGlobe {
     const scene = this.viewer.scene;
     const textGold = Cesium.Color.fromCssColorString('#e0c46a');
     const black = Cesium.Color.fromCssColorString('#14100d');
-    const ddc = new Cesium.DistanceDisplayCondition(0, 4e6);
-    const tdc = new Cesium.NearFarScalar(2e6, 1.0, 4e6, 0.0);
+    const ddc = new Cesium.DistanceDisplayCondition(0, 2e6);
+    const tdc = new Cesium.NearFarScalar(1e6, 1.0, 2e6, 0.0);
 
     let cities = [];
     try {
@@ -636,8 +636,10 @@ export class CesiumGlobe {
       labels.add({
         position,
         text: c.name,
-        font: 'bold 11px "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif',
-        fillColor: black,
+        font: 'bold 13px "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif',
+        fillColor: textGold,
+        outlineColor: black,
+        outlineWidth: 2,
         style: Cesium.LabelStyle.FILL,
         horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
         verticalOrigin: Cesium.VerticalOrigin.BOTTOM,