添加本地连接下载，取消仅保存

pages/Chat/Chat.css

@@ -52,7 +52,7 @@
 	align-items: center;
 	justify-content: center;
 	background-color: rgba(30, 30, 50, 0.35);
-	z-index: 1000;
+	z-index: 9999;
 	backdrop-filter: blur(8px);
 	-webkit-backdrop-filter: blur(8px);
 	animation: fadeIn 0.25s ease;
@@ -801,13 +801,15 @@
 	display: flex;
 	flex-direction: column;
 	border-radius: 40rpx;
+	padding: 40rpx 36rpx;
 }
 
 .message-detail-content {
 	flex: 1;
+	min-height: 200rpx;
 	max-height: 60vh;
 	overflow-y: auto;
-	padding: 20rpx 0;
+	padding: 16rpx 0;
 	font-size: 28rpx;
 	line-height: 1.7;
 	color: #333333;