diff --git a/frontend/src/components/gis/map.cesium.ts b/frontend/src/components/gis/map.cesium.ts
index 2b7079ca..84e29dd4 100644
--- a/frontend/src/components/gis/map.cesium.ts
+++ b/frontend/src/components/gis/map.cesium.ts
@@ -13,6 +13,7 @@ export class MapCesium implements MapInterface {
   private clickEventHandler: Cesium.ScreenSpaceEventHandler | null = null;
   private popupElement: HTMLElement | null = null;
   private hoveredEntityId: string | null = null;
+  private hoverRafId: number | null = null; // requestAnimationFrame 节流
   private removePostRenderListener: (() => void) | null = null;
   private isBatchPopupMode = false;
   private batchPopupContainer: HTMLDivElement | null = null;
@@ -266,53 +267,65 @@ export class MapCesium implements MapInterface {
     // 默认箭头光标，与 2D 一致（不显示拖拽小手）
     canvas.style.cursor = 'default';
 
-    // 鼠标移动：光标样式 + hover popup（批量模式下只改光标）
+    // 鼠标移动：光标样式 + hover popup（rAF 节流，批量模式下只改光标）
+    let pendingMoveEvent: { endPosition: Cesium.Cartesian2 } | null = null;
+
     this.clickEventHandler.setInputAction(
       (move: { endPosition: Cesium.Cartesian2 }) => {
-        const scene = this.viewer?.scene;
-        if (!scene) return;
+        pendingMoveEvent = move;
 
-        const cameraHeight = this.getCurrentCameraHeight();
-        // 缩放门槛：中国视角以上不触发 hover
-        if (cameraHeight > this.HOVER_POPUP_MAX_HEIGHT) {
-          canvas.style.cursor = 'default';
-          this.hidePopup();
-          return;
-        }
+        if (this.hoverRafId !== null) return; // 已有待处理的帧，跳过
+        this.hoverRafId = requestAnimationFrame(() => {
+          this.hoverRafId = null;
+          const evt = pendingMoveEvent;
+          pendingMoveEvent = null;
+          if (!evt) return;
 
-        const picked = scene.pick(move.endPosition);
-        const entity =
-          Cesium.defined(picked) && picked.id instanceof Cesium.Entity
-            ? (picked.id as Cesium.Entity)
-            : null;
+          const scene = this.viewer?.scene;
+          if (!scene) return;
 
-        // 检测是否命中可交互的锚点
-        if (entity && this.isEntityInteractive(entity)) {
-          canvas.style.cursor = 'pointer';
-
-          // 批量模式下单点 hover 不触发 popup
-          if (this.isBatchPopupMode) return;
-
-          // 同一个实体不重复刷新
-          if (this.hoveredEntityId === entity.id) {
-            const position = entity.position?.getValue(
-              this.viewer!.clock.currentTime
-            );
-            if (position) {
-              this.updatePopupPosition(position);
-            }
+          const cameraHeight = this.getCurrentCameraHeight();
+          // 缩放门槛：中国视角以上不触发 hover
+          if (cameraHeight > this.HOVER_POPUP_MAX_HEIGHT) {
+            canvas.style.cursor = 'default';
+            this.hidePopup();
             return;
           }
 
-          this.showPopupForEntity(entity);
-          return;
-        }
+          const picked = scene.pick(evt.endPosition);
+          const entity =
+            Cesium.defined(picked) && picked.id instanceof Cesium.Entity
+              ? (picked.id as Cesium.Entity)
+              : null;
 
-        canvas.style.cursor = 'default';
-        // 批量模式下不隐藏批量 popup
-        if (!this.isBatchPopupMode) {
-          this.hidePopup();
-        }
+          // 检测是否命中可交互的锚点
+          if (entity && this.isEntityInteractive(entity)) {
+            canvas.style.cursor = 'pointer';
+
+            // 批量模式下单点 hover 不触发 popup
+            if (this.isBatchPopupMode) return;
+
+            // 同一个实体不重复刷新
+            if (this.hoveredEntityId === entity.id) {
+              const position = entity.position?.getValue(
+                this.viewer!.clock.currentTime
+              );
+              if (position) {
+                this.updatePopupPosition(position);
+              }
+              return;
+            }
+
+            this.showPopupForEntity(entity);
+            return;
+          }
+
+          canvas.style.cursor = 'default';
+          // 批量模式下不隐藏批量 popup
+          if (!this.isBatchPopupMode) {
+            this.hidePopup();
+          }
+        });
       },
       Cesium.ScreenSpaceEventType.MOUSE_MOVE
     );
@@ -337,7 +350,7 @@ export class MapCesium implements MapInterface {
         } else {
           modelStore.modalVisible = true;
           modelStore.params = rawData;
-          modelStore.title = (rawData.titleName || rawData.stnm) + ' 详情信息';
+          modelStore.title = rawData.titleName || rawData.stnm;
         }
       },
       Cesium.ScreenSpaceEventType.LEFT_CLICK
@@ -614,7 +627,8 @@ export class MapCesium implements MapInterface {
         const { entity, x, y, popupHtml } = candidates[i];
 
         const popupEl = document.createElement('div');
-        popupEl.className = 'map-popup-container';
+        popupEl.className =
+          this.popupElement?.className || 'map-popup-container';
         popupEl.innerHTML = popupHtml;
         popupEl.style.position = 'absolute';
         popupEl.style.display = 'block';
@@ -1077,10 +1091,19 @@ export class MapCesium implements MapInterface {
   initPopupOverlay(popupContainer: HTMLDivElement): void {
     this.popupElement = popupContainer;
     if (this.popupElement) {
+      // 清除可能残留的旧样式
+      this.popupElement.style.removeProperty('position');
+      this.popupElement.style.removeProperty('transform');
+      this.popupElement.style.removeProperty('left');
+      this.popupElement.style.removeProperty('top');
       this.popupElement.style.display = 'none';
       this.popupElement.style.position = 'absolute';
       this.popupElement.style.transform = 'translate(-50%, calc(-100% - 10px))';
-      this.popupElement.style.pointerEvents = 'none';
+      this.popupElement.style.setProperty(
+        'pointer-events',
+        'none',
+        'important'
+      );
     }
   }