feat: 样式修改

src/assets/styles/index.less

@@ -73,6 +73,9 @@ a {
   column-gap: 16px;
   row-gap: 12px;
   flex-shrink: 0;
+  padding: 16px;
+  background-color: #fff;
+  border-radius: 10px;
 }
 
 // 筛选区域操作按钮组:横向 flex
@@ -90,12 +93,20 @@ a {
   display: flex;
   flex-direction: column;
   flex: 1;
+  background-color: #fff;
   min-height: 0;
   min-width: 0;
   margin-top: 16px;
   overflow: hidden;
+  border-radius: 10px;
 }
 
+.page-pagination {
+  flex-shrink: 0;
+  display: flex;
+  justify-content: flex-end;
+  padding: 14px;
+}
 // ===== antd 组件覆盖 =====
 
 // Tag 默认 margin-right: 8px，会挤开表格列或卡片内间距，统一去掉