diff --git a/platform/frontend/topics.html b/platform/frontend/topics.html
index 22dd034..bc7f65a 100644
--- a/platform/frontend/topics.html
+++ b/platform/frontend/topics.html
@@ -9,7 +9,7 @@
     <style>
         .selected-count { color: var(--color-text-secondary); font-size: var(--font-size-body); margin-left: auto; }
         .preview-dialog-custom .el-dialog__body { overflow-y: auto; max-height: calc(90vh - 120px); padding: 16px 20px; }
-        .preview-dialog-custom .preview-body { max-height: calc(90vh - 200px); min-height: 300px; overflow-y: auto; }
+        .preview-dialog-custom .preview-body { max-height: calc(90vh - 180px); min-height: 300px; overflow: auto; }
         .preview-dialog-custom .preview-body img { max-width: 100%; }
         .topic-card-list { display: none; }
         @media (max-width: 768px) {
@@ -230,7 +230,7 @@ const TopicsApp = {
                 const doc = parser.parseFromString(html, 'text/html');
                 const body = doc.body;
                 if (!body) return html;
-                body.querySelectorAll('script, nav, .header, footer, .interaction').forEach(el => el.remove());
+                body.querySelectorAll('script, nav, footer, .interaction').forEach(el => el.remove());
                 const headHtml = doc.querySelector('head') ? doc.querySelector('head').innerHTML : '';
                 const bodyHtml = body.innerHTML;
                 const ending = '<p style="margin-top:24px;padding-top:16px;border-top:1px solid #eee;color:#666;font-size:14px;">感兴趣可以收藏关注我们，欢迎在评论区分享你的实践经验和改进建议！</p>';
@@ -247,7 +247,7 @@ const TopicsApp = {
                 const body = doc.body;
                 if (!body) return html;
                 if (body.innerHTML.length < 30) return '<div style="padding:40px;text-align:center;color:#909399;"><p style="font-size:36px;margin:0 0 12px;">📝</p><p>内容为空，请编辑或重新生成</p></div>';
-                body.querySelectorAll('script, nav, .header, .tags, footer, .interaction').forEach(el => el.remove());
+                body.querySelectorAll('script, nav, footer, .interaction').forEach(el => el.remove());
                 return body.innerHTML;
             } catch (e) { console.error('解析 HTML 失败:', e); return html; }
         },