diff --git a/.env.production b/.env.production
index 07c0c59..14efc50 100644
--- a/.env.production
+++ b/.env.production
@@ -22,7 +22,7 @@ VITE_GLOB_API_URL=/jeecg-boot
 VITE_GLOB_DOMAIN_URL=http://bylwcs.nenu.edu.cn/jeecg-boot
 
 #RTC服务器地址
-VITE_GLOB_RTC_SERVER = http://bylwcs.nenu.edu.cn/RTCServer
+VITE_GLOB_RTC_SERVER = http://bylwcs.nenu.edu.cn:8081
 
 # 接口父路径前缀
 VITE_GLOB_API_URL_PREFIX=
diff --git a/src/views/kc/jiaoshi/index.vue b/src/views/kc/jiaoshi/index.vue
index a13560c..0b58673 100644
--- a/src/views/kc/jiaoshi/index.vue
+++ b/src/views/kc/jiaoshi/index.vue
@@ -36,9 +36,9 @@
           <!-- </a-col> -->
         <!-- </a-row> -->
         <div>
-
-
-          <video id="mainVideo" v-bind="videoOption" style="width:100%" @click.prevent.stop></video>
+          <a-card :title="mainVideoCardBoxTitle" class="videoCardMain">
+            <video id="mainVideo" v-bind="videoOption" style="width:100%" @click.prevent.stop></video>
+          </a-card>
         </div>
         <div style="display: flex;flex-direction: row;flex-wrap: nowrap;overflow-x: scroll;">
           <div v-for="(item,index) of calcOtherVideo()" class="videoMax">
@@ -95,6 +95,7 @@ const _document = window.document;
 const leftList = <any>ref([]);
 const currentItem = <any>ref({});
 const topWidth = <any>ref('0');
+const mainVideoCardBoxTitle = <any>ref('');
 
 const videoOption = reactive({
   // width: '800', //播放器高度
@@ -227,8 +228,14 @@ function calcOtherVideo() :any{
 function switchVideoToMain(){
   console.log(`🚀 ~ file: index.vue:188 ~ switchVideoToMain ~ switchVideoToMain: 自动切换第一个子界面到主界面`);
   nextTick(() => {
+    let firstBox = <HTMLVideoElement> document.querySelector('.videoMax');
+    let titleBox = <HTMLVideoElement> firstBox?.querySelector('.ant-card-head-title');
+    let title = titleBox?.textContent;
+
+    mainVideoCardBoxTitle.value = title;
+
     let mainVideo = <HTMLVideoElement> document.querySelector('#mainVideo');
-    let firstVideo = <HTMLVideoElement> document.querySelector('.videoMax video');
+    let firstVideo = <HTMLVideoElement> firstBox.querySelector('video');
     mainVideo.srcObject = firstVideo.srcObject
     mainVideo.play();
   });
@@ -238,6 +245,13 @@ function bVideoClick(e){
   console.log(`bVideoClick: 切换至主界面`);
   let mainVideo = <HTMLVideoElement> document.querySelector('#mainVideo');
   let currentVideo = <HTMLVideoElement> e.srcElement;
+
+  let title = currentVideo?.parentElement?.parentElement?.querySelector('.ant-card-head-title')?.textContent
+  mainVideoCardBoxTitle.value = title;
+  console.log(`🚀 --------------------------------------------------------------------🚀`);
+  console.log(`🚀 ~ file: index.vue:238 ~ bVideoClick ~ currentVideo:`, currentVideo);
+  console.log(`🚀 --------------------------------------------------------------------🚀`);
+
   mainVideo.srcObject = currentVideo.srcObject
   mainVideo.play();
 }