diff --git a/src/views/cases/detail.vue b/src/views/cases/detail.vue
index 58b20ee..e7e433b 100644
--- a/src/views/cases/detail.vue
+++ b/src/views/cases/detail.vue
@@ -21,14 +21,14 @@
                     scope.row.bucket_compress +
                     '/' +
                     scope.row.object_compress
-                    " fit="cover" style="width: 100px; height: 80px; pointer-events: none" />
+                    " fit="cover" style="width: 125px; height: 125px; pointer-events: none" />
                   <div v-else class="video-thumb-wrapper">
                     <video :src="$store.state.user.netConfig.MINIO_ENDPOINT_HTTPS +
                       scope.row.bucket_compress +
                       '/' +
                       scope.row.object_compress
                       " preload="metadata"
-                      style="width: 100px; height: 80px; object-fit: cover; pointer-events: none" />
+                      style="width: 125px; height: 80px; object-fit: cover; pointer-events: none" />
                     <i class="el-icon-video-play video-play-icon"></i>
                   </div>
                 </div>
@@ -222,7 +222,7 @@
                           item.object_compress
                         "
                         fit="cover"
-                        style="width: 100px; height: 80px"
+                        style="width: 125px; height: 125px"
                       />
                       <div v-else class="video-thumb-wrapper">
                         <video
@@ -232,7 +232,7 @@
                             item.object_compress
                           "
                           preload="metadata"
-                          style="width: 100px; height: 80px; object-fit: cover; pointer-events: none"
+                          style="width: 125px; height: 125px; object-fit: cover; pointer-events: none"
                         />
                         <i class="el-icon-video-play video-play-icon"></i>
                       </div>
@@ -750,8 +750,21 @@ export default {
     async handleFileChange(event) {
       const files = event.target.files;
       if (!files || files.length === 0) return;
+      
+      // 允许的图片类型
+      const imageExtensions = ['.bmp', '.png', '.jpg'];
+      // 允许的视频类型
+      const videoExtensions = ['.mp4'];
+      const allowedExtensions = [...imageExtensions, ...videoExtensions];
       try {
         for (const file of files) {
+          // 验证文件类型
+          const fileName = file.name.toLowerCase();
+          const ext = fileName.substring(fileName.lastIndexOf('.'));
+          if (!allowedExtensions.includes(ext)) {
+            this.$modal.msgError(`文件类型不支持: ${file.name}，仅支持图片和视频格式`);
+            continue;
+          }
           await this.uploadImageToMinIO(file);
         }
       } catch (error) {