refactor(style): 重构CSS类选择器以优化样式应用

- 移除 .user-main .about.collapsed-info .details 从背景色透明样式规则中
- 将 .user-main .about.collapsed-info .details 添加到背景变量样式规则中
- 优化了CSS选择器的分组和结构
- 统一了相关组件的视觉样式表现

scss/self.scss

@@ -50,8 +50,7 @@
 
 .regular.ember-view, .user-main, .reviewable,
 .admin-content, .contents.clearfix.body-page,
-.search-container, .show-badge, .users-directory, #main-outlet>.edit-category,
-.user-main .about.collapsed-info .details{
+.search-container, .show-badge, .users-directory, #main-outlet>.edit-category{
   background-color: #ffffffa8 !important;
   border-radius: var(--d-border-radius);
   backdrop-filter: blur(32px);
@@ -59,7 +58,9 @@
   padding: 24px;
 }
 
-.topic-post.clearfix.regular, .post-list-item.user-stream-item, .search-header, .admin-plugin-config-page__content {
+.topic-post.clearfix.regular, .post-list-item.user-stream-item,
+.search-header, .admin-plugin-config-page__content,
+.user-main .about.collapsed-info .details{
   background: var(--d-chat-input-bg-color);
   border-radius: var(--d-border-radius);
   box-shadow: #00000024 0 0 7px 2px;