修改资源案例web页面

web/src/views/CaseResources.vue

@@ -31,9 +31,7 @@
           >
             <div class="course-image">
               <img :src="course.imageUrl" :alt="course.title" class="course-thumbnail">
-              <div v-if="index === 0" class="play-button">
-                <div class="play-icon">▶</div>
-              </div>
+              <!-- 已删除：线上课程列表页的播放按钮 -->
             </div>
             <div class="course-info">
               <div class="course-meta" v-if="index === 0">
@@ -56,9 +54,7 @@
         <div class="course-header">
           <div class="course-video">
             <img :src="selectedCourse.imageUrl" :alt="selectedCourse.title" class="video-thumbnail">
-            <div class="play-button">
-              <div class="play-icon">▶</div>
-            </div>
+            <!-- 已删除：线上课程详情页的播放按钮 -->
           </div>
           <div class="course-intro">
             <h2>课程介绍</h2>
@@ -562,32 +558,7 @@ body {
   transform: scale(1.05);
 }
 
-.play-button {
-  position: absolute;
-  top: 50%;
-  left: 50%;
-  transform: translate(-50%, -50%);
-  width: 60px;
-  height: 60px;
-  background-color: rgba(255, 255, 255, 0.8);
-  border-radius: 50%;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  cursor: pointer;
-  transition: all 0.3s;
-}
-
-.play-button:hover {
-  background-color: #fff;
-  transform: translate(-50%, -50%) scale(1.1);
-}
-
-.play-icon {
-  font-size: 1.5rem;
-  color: #e74c3c;
-  margin-left: 5px;
-}
+/* 已删除：播放按钮相关样式 */
 
 .course-info {
   display: flex;
@@ -951,6 +922,37 @@ body {
   box-shadow: 0 2px 10px rgba(0,0,0,0.1);
 }
 
+/* 视频案例播放按钮样式（保留） */
+.video .play-button,
+.course-card:has(.video-case) .play-button {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  width: 60px;
+  height: 60px;
+  background-color: rgba(255, 255, 255, 0.8);
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  transition: all 0.3s;
+}
+
+.video .play-button:hover,
+.course-card:has(.video-case) .play-button:hover {
+  background-color: #fff;
+  transform: translate(-50%, -50%) scale(1.1);
+}
+
+.video .play-icon,
+.course-card:has(.video-case) .play-icon {
+  font-size: 1.5rem;
+  color: #e74c3c;
+  margin-left: 5px;
+}
+
 /* 响应式适配 */
 @media (max-width: 992px) {
   .courses-grid {