feat: 优化招生官页面样式和功能

- 新增H5页面相关文件
- 调整CSS样式，修复移动端适配问题
- 优化宣讲会列表显示和时间格式化
- 改进视频播放器交互逻辑
- 修复课程标签显示问题

css/index.less

@@ -1,12 +1,18 @@
-* {
-    padding: 0;
+body {
     margin: 0;
-    box-sizing: border-box;
-    scroll-behavior: smooth;
+    background-color: rgba(246, 246, 246, 1);
 }
+
 .admission-officer {
     min-height: 100vh;
     background-color: rgba(246, 246, 246, 1);
+    min-width: 1200px;
+    * {
+        padding: 0;
+        margin: 0;
+        box-sizing: border-box;
+        scroll-behavior: smooth;
+    }
     .flexflex {
         display: flex;
     }
@@ -26,6 +32,10 @@
         flex: 1;
     }
 
+    img {
+        object-fit: cover;
+    }
+
     a {
         text-decoration: none;
         &:hover {
@@ -45,6 +55,9 @@
             position: absolute;
             top: 60px;
             left: calc((100vw - 1200px) / 2);
+            @media screen and (max-width: 1200px) {
+                left: 0;
+            }
         }
 
         .admission-head-box {
@@ -759,7 +772,7 @@
                                     &.unfold {
                                         color: #fff;
                                         .svg {
-                                            fill: #76c45e !important;
+                                            // fill: #76c45e !important;
                                         }
                                         .arrows {
                                             fill: #fff;
@@ -844,6 +857,12 @@
                                     font-size: 16px;
                                     color: #333333;
                                     margin-bottom: 8px;
+
+                                    .text {
+                                        line-height: 28px;
+                                        display: inline;
+                                    }
+
                                     .label {
                                         height: 26px;
                                         line-height: 26px;
@@ -855,6 +874,7 @@
                                         font-family: "ArialMT", "Arial", sans-serif;
                                         padding: 0 6px;
                                         margin-left: 12px;
+                                        display: inline-flex;
 
                                         .arrows {
                                             position: absolute;