diff --git a/message_summary/markdown_to_image.py b/message_summary/markdown_to_image.py
index 2e78223..5984864 100644
--- a/message_summary/markdown_to_image.py
+++ b/message_summary/markdown_to_image.py
@@ -21,7 +21,7 @@ def md_str_to_html(md_content, output_html):
             font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
             padding: 20px;
             line-height: 1.6;
-            max-width: 800px;
+            max-width: 700px;
             margin: 0 auto;
         }
         pre, code {
@@ -76,7 +76,7 @@ def html_to_image(html_file, output_image):
         page.goto(f'file://{os.path.abspath(html_file)}')
 
         # 设置 viewport（可选，根据需要调整）
-        page.set_viewport_size({"width": 1200, "height": 800})
+        page.set_viewport_size({"width": 900, "height": 700})
 
         # 截图
         page.screenshot(path=output_image, full_page=True)
diff --git a/message_summary/message_summary_dify.py b/message_summary/message_summary_dify.py
index cf32500..8e99e3c 100644
--- a/message_summary/message_summary_dify.py
+++ b/message_summary/message_summary_dify.py
@@ -1,8 +1,5 @@
 import requests
 import json
-import os
-import uuid
-from datetime import datetime
 
 from message_summary.compress_chat_data import compress_chat_data
 from message_summary.markdown_to_image import convert_md_str_to_image