diff --git a/components-diy/diy-video-list.vue b/components-diy/diy-video-list.vue
index 3eee3e4..2c3138e 100644
--- a/components-diy/diy-video-list.vue
+++ b/components-diy/diy-video-list.vue
@@ -148,9 +148,9 @@ export default {
 		
 		// 弹窗视频容器样式
 		popupVideoStyle() {
-			// 固定宽高容器：60%宽 x 50vh高，居中显示
-			// 竖屏视频填满高度→左右留黑边；横屏视频填满宽度→无黑边
-			let style = 'position:fixed;width:60%;height:50vh;left:50%;top:50%;transform:translate(-50%,-50%);';
+			// 容器横向铺满，黑色背景填满左右边界
+			// 视频用 object-fit:contain 保持原比例居中，左右黑边由容器黑色背景填充
+			let style = 'position:fixed;width:100%;height:50vh;left:50%;top:50%;transform:translate(-50%,-50%);border-radius:0;';
 			return style;
 		}
 	},
@@ -598,7 +598,6 @@ export default {
 	position: relative;
 	overflow: hidden;
 	background-color: #000;
-	border-radius: 12rpx;
 }
 
 .adaptive-video {