diff --git a/src/main/services/erp/cleaner.ts b/src/main/services/erp/cleaner.ts
index 54d84de..fe85115 100644
--- a/src/main/services/erp/cleaner.ts
+++ b/src/main/services/erp/cleaner.ts
@@ -1278,25 +1278,24 @@ export class CleanerService {
       })
 
       log.debug('[详情页面清理] 准备关闭详情页面', { pageUrl: detailPage.url() })
+      // Capture video reference before closing — page.video() may return null after close
+      const video = this.videoDir ? detailPage.video() : null
       await detailPage.close()
       log.debug('[详情页面清理完成] 详情页已关闭')
 
       // Rename video file to order number if video recording is enabled
-      if (this.videoDir && expectedOrderNumber) {
+      if (video && expectedOrderNumber) {
         try {
-          const video = detailPage.video()
-          if (video) {
-            const originalPath = await video.path()
-            if (originalPath && fs.existsSync(originalPath)) {
-              const ext = path.extname(originalPath) || '.webm'
-              const orderVideoPath = path.join(this.videoDir, `${expectedOrderNumber}${ext}`)
-              // Avoid overwriting existing file (e.g. retry)
-              const finalPath = fs.existsSync(orderVideoPath)
-                ? path.join(this.videoDir, `${expectedOrderNumber}_${Date.now()}${ext}`)
-                : orderVideoPath
-              fs.renameSync(originalPath, finalPath)
-              log.debug('[视频录制] 视频已重命名', { from: originalPath, to: finalPath })
-            }
+          const originalPath = await video.path()
+          if (originalPath && fs.existsSync(originalPath)) {
+            const ext = path.extname(originalPath) || '.webm'
+            const orderVideoPath = path.join(this.videoDir!, `${expectedOrderNumber}${ext}`)
+            // Avoid overwriting existing file (e.g. retry)
+            const finalPath = fs.existsSync(orderVideoPath)
+              ? path.join(this.videoDir!, `${expectedOrderNumber}_${Date.now()}${ext}`)
+              : orderVideoPath
+            fs.renameSync(originalPath, finalPath)
+            log.debug('[视频录制] 视频已重命名', { from: originalPath, to: finalPath })
           }
         } catch (videoError) {
           log.warn('[视频录制] 重命名视频失败', {