diff --git a/dsLightRag/static/YunXiao/course_page.html b/dsLightRag/static/YunXiao/course_page.html
index ba8b630c..86467726 100644
--- a/dsLightRag/static/YunXiao/course_page.html
+++ b/dsLightRag/static/YunXiao/course_page.html
@@ -475,7 +475,7 @@
                         您的浏览器不支持HTML5视频播放。
                     </video>
                 </div>
-                <div class="video-controls">
+                <!-- <div class="video-controls">
                     <div class="video-progress">
                         <div class="progress-bar"></div>
                     </div>
@@ -492,7 +492,7 @@
                             <button class="video-button">📝 随堂笔记</button>
                         </div>
                     </div>
-                </div>
+                </div> -->
             </div>
 
             <div class="video-actions">
@@ -577,49 +577,49 @@
                             <span class="resource-icon">▶</span>
                             视频课程
                         </div>
-                        <div class="resource-arrow">▼</div>
+                        <div class="resource-arrow"></div>
                     </li>
                     <li class="resource-item">
                         <div class="resource-name">
                             <span class="resource-icon">📄</span>
                             《万有引力定律》
                         </div>
-                        <div class="resource-arrow">→</div>
+                        <div class="resource-arrow"></div>
                     </li>
                     <li class="resource-item">
                         <div class="resource-name">
                             <span class="resource-icon">📑</span>
                             课件
                         </div>
-                        <div class="resource-arrow">▼</div>
+                        <div class="resource-arrow"></div>
                     </li>
                     <li class="resource-item">
                         <div class="resource-name">
                             <span class="resource-icon">📋</span>
                             教学设计
                         </div>
-                        <div class="resource-arrow">▼</div>
+                        <div class="resource-arrow"></div>
                     </li>
                     <li class="resource-item">
                         <div class="resource-name">
                             <span class="resource-icon">✓</span>
                             任务单
                         </div>
-                        <div class="resource-arrow">▼</div>
+                        <div class="resource-arrow"></div>
                     </li>
                     <li class="resource-item">
                         <div class="resource-name">
                             <span class="resource-icon">📝</span>
                             作业与习题
                         </div>
-                        <div class="resource-arrow">▼</div>
+                        <div class="resource-arrow"></div>
                     </li>
                     <li class="resource-item">
                         <div class="resource-name">
                             <span class="resource-icon">📎</span>
                             其他
                         </div>
-                        <div class="resource-arrow">▼</div>
+                        <div class="resource-arrow"></div>
                     </li>
                 </ul>
             </div>