feat: 替换sass版本，定义全局样式，实现简单的页面布局操作，比如颜色、边距、圆角等

src/pages/index/components/module/RecommendPostsList/index.vue

@@ -37,5 +37,5 @@ const sendReply = (item) => {
 </script>
 
 <style lang="scss" scoped>
-@use "./styles/index.scss";
+@import "./styles/index.scss";
 </style>

src/pages/index/components/module/RecommendPostsList/styles/index.scss

@@ -46,8 +46,8 @@
   .overlay-text {
     color: #fff;
     font-weight: 500;
-    font-size: 12px;
+    font-size: $uni-font-size-sm;
     text-align: left;
     width: 100%;
   }
-}
+}