地球词条标记改为黄色便签样式（黄底黑字）

src/core/App.js

@@ -406,7 +406,7 @@ export class App {
   }
 
   _applyRotationLimits(pose) {
-    const LIMIT = (20 * Math.PI) / 180; // ±20°
+    const LIMIT = (10 * Math.PI) / 180; // ±10°
     const dx = pose.pos.x - pose.target.x;
     const dy = pose.pos.y - pose.target.y;
     const dz = pose.pos.z - pose.target.z;