diff --git a/playground/src/api/service/org/classroom-monitor.ts b/playground/src/api/service/org/classroom-monitor.ts
index e05c1d7..79ef29a 100644
--- a/playground/src/api/service/org/classroom-monitor.ts
+++ b/playground/src/api/service/org/classroom-monitor.ts
@@ -150,6 +150,31 @@ class ClassroomMonitorService {
       `/school/classMonitor/heartbeat?classId=${encodeURIComponent(String(classId))}`,
     )
   }
+
+  /** 教师共享屏幕测试：开启 */
+  async startTeacherShareScreen(
+    classId: number | string,
+    ip: string,
+    port: number,
+  ) {
+    return await post('/school/teacherScreenShare/startTeacherShareScreen', {
+      classId,
+      ip,
+      port,
+    })
+  }
+
+  /** 教师共享屏幕测试：结束 */
+  async stopTeacherShareScreen(classId: number | string) {
+    return await post('/school/teacherScreenShare/stopTeacherShareScreen', {
+      classId,
+    })
+  }
+
+  /** 教师共享屏幕测试：心跳（建议每 60 秒） */
+  async teacherShareScreenHeartbeat(classId: number | string) {
+    return await post('/school/teacherScreenShare/heartbeat', { classId })
+  }
 }
 
 export const classroomMonitorService = new ClassroomMonitorService()
diff --git a/playground/src/types/global.d.ts b/playground/src/types/global.d.ts
index 1bdbbe3..2e1348b 100644
--- a/playground/src/types/global.d.ts
+++ b/playground/src/types/global.d.ts
@@ -8,15 +8,17 @@ interface Window {
   teacherApi?: {
     startSfu: () => Promise<{ port: number; already?: boolean }>
     stopSfu: () => Promise<void>
-    /** 可选传入班级学员列表与班级名称；名称用于教师端共享窗口标题「{名称} - 屏幕共享」。 */
+    /** 可选传入班级学员列表、班级名称与班级 id；名称用于教师端共享窗口标题「{名称} - 屏幕共享」，id 用于教师端业务与心跳。 */
     openScreenShareWindow: (
       classStudentRows?: unknown[],
       className?: string,
+      classId?: string | number,
     ) => Promise<void>
-    /** 打开学员屏幕监控独立窗口（teacher-electron） */
+    /** 打开学员屏幕监控独立窗口（teacher-electron）；名称用于窗口标题，班级 id 下发至监控页。 */
     openStudentScreenMonitorWindow?: (
       classStudentRows?: unknown[],
       className?: string,
+      classId?: string | number,
     ) => Promise<void>
     setShareClassStudentsListener?: (
       cb: ((rows: unknown[]) => void) | null,
diff --git a/playground/src/views/org/classroom-monitor/home.vue b/playground/src/views/org/classroom-monitor/home.vue
index 4bbab19..667f08a 100644
--- a/playground/src/views/org/classroom-monitor/home.vue
+++ b/playground/src/views/org/classroom-monitor/home.vue
@@ -45,6 +45,7 @@ const studentSnapshotPreviewList = computed(() => {
 })
 const SNAPSHOT_REFRESH_INTERVAL = 5000
 const MONITOR_HEARTBEAT_INTERVAL = 60 * 1000
+
 let snapshotRefreshTimer: ReturnType<typeof setInterval> | undefined
 let heartbeatTimer: ReturnType<typeof setInterval> | undefined
 
@@ -273,10 +274,10 @@ async function openTeacherScreenShareWindow(item: ClassroomItem) {
           classId: item.id,
         })
         const rows = (page as any)?.data?.rows ?? page?.rows ?? []
-        await api.openScreenShareWindow(rows, item.name ?? '')
-      } catch (e) {
-        console.error(e)
-        throw e
+        await api.openScreenShareWindow(rows, item.name ?? '', item.id)
+      } catch (error) {
+        console.error(error)
+        throw error
       }
     },
     error: async () => {
@@ -300,10 +301,10 @@ async function openStudentScreenMonitorWindow(item: ClassroomItem) {
           classId: item.id,
         })
         const rows = (page as any)?.data?.rows ?? page?.rows ?? []
-        await openMon(rows, item.name ?? '')
-      } catch (e) {
-        console.error(e)
-        throw e
+        await openMon(rows, item.name ?? '', item.id)
+      } catch (error) {
+        console.error(error)
+        throw error
       }
     },
     error: async () => {
diff --git a/playground/vite.config.mts b/playground/vite.config.mts
index c95546e..45c9570 100644
--- a/playground/vite.config.mts
+++ b/playground/vite.config.mts
@@ -33,8 +33,8 @@ export default defineConfig(async () => {
         open: true,
         proxy: {
           '/api': {
-            target: 'http://43.136.52.196:9053',
-            // target: 'https://admin.lingxixue.com',
+            // target: 'http://43.136.52.196:9053',
+            target: 'https://tiku.lingxixue.com',
             changeOrigin: true,
           },
         },