增加uniapp

uniapp/uni.scss

@@ -0,0 +1,14 @@
+/* uni.scss - 全局SCSS变量 */
+$primary-color: #1989fa;
+$primary-light: #e8f4fd;
+$text-color: #333333;
+$text-secondary: #666666;
+$text-placeholder: #999999;
+$bg-color: #f5f5f5;
+$border-color: #eeeeee;
+
+/* 尺寸变量 */
+$uni-border-radius: 8rpx;
+$uni-spacing-sm: 16rpx;
+$uni-spacing-md: 24rpx;
+$uni-spacing-lg: 32rpx;