diff --git a/ppt_manager/app.py b/ppt_manager/app.py
index c945666..b6a121a 100644
--- a/ppt_manager/app.py
+++ b/ppt_manager/app.py
@@ -11,6 +11,10 @@ from loguru import logger
 app = Flask(__name__)
 app.config['JSON_AS_ASCII'] = False
 
+@app.template_filter('count_item')
+def count_item(lst, item):
+    return lst.count(item)
+
 generator = PPTGenerator()
 
 @app.route('/')
diff --git a/ppt_manager/templates/index.html b/ppt_manager/templates/index.html
index e8a6c73..7a75ca6 100644
--- a/ppt_manager/templates/index.html
+++ b/ppt_manager/templates/index.html
@@ -44,10 +44,12 @@
                         </div>
                         <div class="mt-3 text-xs text-gray-500">
                             <span class="bg-green-100 text-green-700 px-2 py-1 rounded-full mr-1">
-                                静态: {{ project.slide_mapping.values() | list | count('static') }} 页
+                                {% set static_pages = project.slide_mapping.values() | list %}
+                                静态: {{ static_pages | count_item('static') }} 页
                             </span>
                             <span class="bg-orange-100 text-orange-700 px-2 py-1 rounded-full">
-                                动态: {{ project.total_slides - (project.slide_mapping.values() | list | count('static')) }} 页
+                                {% set static_count = static_pages | count_item('static') %}
+                                动态: {{ project.total_slides - static_count }} 页
                             </span>
                         </div>
                     </div>