diff --git a/my-blog/templates/post.html b/my-blog/templates/post.html
index fd25a5a..4c9a5ae 100644
--- a/my-blog/templates/post.html
+++ b/my-blog/templates/post.html
@@ -12,14 +12,14 @@
                 {% if post.language %}
                 <span class="article-lang">{{ post.language }}</span>
                 {% endif %}
-                {% if post.extra.type == "ai" %}
+                {% if post.extra and post.extra.type == "ai" %}
                 <span class="article-ai">
                     <span class="ai-icon icon-ai"></span>
                     ai
                 </span>
                 {% endif %}
             </div>
-            {% if not post.extra.type or post.extra.type != "ai" %}
+            {% if not post.extra or not post.extra.type or post.extra.type != "ai" %}
             <div class="article-actions">
                 {% if post.markdown_url %}
                 <a href="{{ post.markdown_url }}" class="action-btn markdown-btn" title="View Markdown">
@@ -35,7 +35,7 @@
             {% endif %}
         </header>
         
-        {% if not post.extra.type or post.extra.type != "ai" %}
+        {% if not post.extra or not post.extra.type or post.extra.type != "ai" %}
         <nav class="toc">
             <h3>Contents</h3>
             <div id="toc-content">