refactor(ui): [UI8] 彻底移除遗留Card并补充下拉框中文化

client/src/pages/DepartmentsPage.tsx

@@ -101,7 +101,7 @@ export function DepartmentsPage() {
         </p>
       ) : null}
 
-      <div className="card-std space-y-4">
+      <div className="card-std p-6 space-y-4">
         <div className="flex items-center justify-between gap-3">
           <h3 className="text-base font-semibold text-zinc-900">新建部门</h3>
           <Button
@@ -163,7 +163,7 @@ export function DepartmentsPage() {
         </div>
       </div>
 
-      <div className="card-std space-y-4">
+      <div className="card-std p-6 space-y-4">
         <h3 className="text-base font-semibold text-zinc-900">部门列表</h3>
 
         {listQuery.isLoading ? <TableSkeleton columns={4} rows={4} /> : null}