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/components/ResponseIntro/index.vue

@@ -17,5 +17,5 @@ defineProps({
 </script>
 
 <style scoped lang="scss">
-@use "./styles/index.scss";
+@import "./styles/index.scss";
 </style>

src/components/ResponseIntro/styles/index.scss

@@ -4,8 +4,8 @@
 
 .response-intro-text {
   font-weight: 500;
-  font-size: 14px;
-  color: #333333;
+  font-size: $uni-font-size-base;
+  color: $uni-text-color;
   line-height: 20px;
   text-align: justify;
 }