diff --git a/web-to-ppt/popup.js b/web-to-ppt/popup.js
index 5c47bd1..9ba8b12 100644
--- a/web-to-ppt/popup.js
+++ b/web-to-ppt/popup.js
@@ -105,20 +105,19 @@ async function exportPptx() {
     setProgress(90, '正在打包...');
     const blob = await WebToPPT.schemaToPptxBlob(schema);
 
-    // 5. 下载（不弹对话框，直接下载到默认文件夹）
+    // 5. 下载（弹出保存对话框）
     setProgress(95, '正在下载...');
     const url = URL.createObjectURL(blob);
     const title = jsonData.source?.title || 'webpage';
     const safeTitle = title.replace(/[\\/:*?"<>|]+/g, '-').replace(/\s+/g, '-').slice(0, 64) || 'webpage';
     const filename = `web-to-ppt/${safeTitle}-${Date.now()}.pptx`;
 
-    const downloadId = await chrome.downloads.download({ url, filename });
-    // 等下载完成后再 revoke
-    setTimeout(() => URL.revokeObjectURL(url), 30000);
+    await chrome.downloads.download({ url, filename, saveAs: true });
+    setTimeout(() => URL.revokeObjectURL(url), 60000);
 
     setProgress(100, `已导出：${filename}`);
     setResult('success', '导出完成');
-    setTimeout(() => window.close(), 1500);
+    // 不自动关闭 popup，等用户选完保存位置
 
   } catch (error) {
     setProgress(0, error.message || String(error));