feat: 添加AI课程集成和修复初始化错误

- 将终生学习系统课添加到公共课直播间
- 修复allCalendarEvents初始化顺序问题
- 更正AI课程导师为李奇
- 添加AI课程与日历页面同步功能

src/components/CourseList/index.css

@@ -40,6 +40,36 @@
     .course-list {
       width: 100%;
 
+      /* 分割线样式 */
+      .course-divider {
+        width: 100%;
+        height: 40px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        margin: 20px 0;
+        position: relative;
+        
+        .divider-line {
+          flex: 1;
+          height: 1px;
+          background: linear-gradient(90deg, transparent, #e5e6eb 20%, #e5e6eb 80%, transparent);
+          border-style: dashed;
+          border-width: 1px 0 0 0;
+          border-color: #e5e6eb;
+        }
+        
+        .divider-text {
+          padding: 0 16px;
+          font-size: 14px;
+          font-weight: 500;
+          color: #86909c;
+          background-color: #fff;
+          position: relative;
+          z-index: 1;
+        }
+      }
+
       /* 自定义折叠面板元素 */
       .course-list-item {
         width: 272px;
@@ -51,6 +81,14 @@
         font-weight: 400;
         line-height: 21px;
         border: none;
+        
+        &.has-preview-unit {
+          .arco-collapse-item-header {
+            background: linear-gradient(135deg, #f0f7ff 0%, #e8f3ff 100%);
+            border: 1px solid #b3d4ff;
+            box-shadow: 0 2px 8px rgba(64, 128, 255, 0.1);
+          }
+        }
 
         .arco-collapse-item-header {
           border-radius: 8px;
@@ -275,6 +313,40 @@
             border: 1px solid #ff7d00;
           }
         }
+        
+        .preview-badge {
+          position: absolute;
+          left: 50%;
+          top: 60%;
+          transform: translate(-50%, -50%);
+          padding: 4px 12px;
+          background: #4080ff;
+          color: #fff;
+          font-size: 12px;
+          font-weight: 600;
+          border-radius: 12px;
+          z-index: 10;
+          box-shadow: 0 3px 8px rgba(64, 128, 255, 0.3);
+        }
+        
+        @keyframes pulse {
+          0% {
+            transform: scale(1);
+            box-shadow: 0 3px 8px rgba(255, 107, 107, 0.3);
+          }
+          50% {
+            transform: scale(1.05);
+            box-shadow: 0 4px 12px rgba(255, 107, 107, 0.5);
+          }
+          100% {
+            transform: scale(1);
+            box-shadow: 0 3px 8px rgba(255, 107, 107, 0.3);
+          }
+        }
+        
+        .has-preview {
+          /* 可试看标签已调整到中心位置，不需要额外样式 */
+        }
       }
     }
   }