feat: 实现日历课程点击跳转到直播间功能

- 添加日历课程详情弹窗的点击跳转功能
- 公共课直播间和课程直播间支持URL参数自动选中课程
- 优化岗位详情页面样式，复用简洁卡片样式
- 为岗位详情标题添加图标
- 调整不同类型课程的跳转逻辑

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/PublicCourses/index.jsx

@@ -1,4 +1,5 @@
-import { useState } from "react";
+import { useState, useEffect } from "react";
+import { useSearchParams } from "react-router-dom";
 import CoursesVideoPlayer from "@/components/CoursesVideoPlayer";
 import PublicCourseList from "@/components/PublicCourseList";
 import { mockData } from "@/data/mockData";
@@ -7,6 +8,25 @@ import "./index.css";
 const PublicCourses = () => {
   // 默认不选中任何课程，显示黑屏状态
   const [selectedCourse, setSelectedCourse] = useState(null);
+  const [searchParams] = useSearchParams();
+  
+  // 检查URL参数，如果有courseId则自动打开对应课程
+  useEffect(() => {
+    const courseId = searchParams.get('courseId');
+    const courseTitle = searchParams.get('courseTitle');
+    
+    if (courseId || courseTitle) {
+      // 查找对应的课程
+      const publicCourses = mockData.publicCourses || [];
+      const targetCourse = publicCourses.find(course => 
+        course.id === courseId || course.title === courseTitle
+      );
+      
+      if (targetCourse) {
+        setSelectedCourse(targetCourse);
+      }
+    }
+  }, [searchParams]);
 
   const handleCourseClick = (course) => {
     setSelectedCourse(course);