diff --git a/utils/markdown_to_image.py b/utils/markdown_to_image.py
index 76fe59e..a6f2ce6 100644
--- a/utils/markdown_to_image.py
+++ b/utils/markdown_to_image.py
@@ -243,7 +243,8 @@ async def html_to_image(html_file, output_image):
             # 业务逻辑不变
             try:
                 page = await browser.new_page()
-                await page.goto(f'file://{os.path.abspath(html_file)}')
+                # 增加超时时间到60秒或更长
+                await page.goto(f'file://{os.path.abspath(html_file)}', timeout=60000)
                 await page.set_viewport_size({"width": 750, "height": 800})
                 await page.wait_for_timeout(500)
                 await page.screenshot(path=output_image, full_page=True)
@@ -305,6 +306,14 @@ async def convert_md_str_to_image(md_content: str, output_image: str) -> str:
         # 将 Markdown 转换为 HTML
         await md_str_to_html(md_content, str(temp_html_path))
 
+        # 添加更长的等待时间确保文件系统同步
+        await asyncio.sleep(1.0)
+        
+        # 检查文件是否存在和可读
+        if not os.path.exists(str(temp_html_path)):
+            logger.error(f"HTML文件不存在: {temp_html_path}")
+            raise FileNotFoundError(f"HTML文件不存在: {temp_html_path}")
+            
         # 将 HTML 转换为图片
         await html_to_image(str(temp_html_path), str(output_image_path))