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

client/src/pages/ApprovalRulesPage.tsx

@@ -155,7 +155,7 @@ export function ApprovalRulesPage() {
         </p>
       ) : null}
 
-      <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">新建审批规则</h3>
 
         <div className="grid gap-3 md:grid-cols-2 lg:grid-cols-3">
@@ -280,7 +280,7 @@ export function ApprovalRulesPage() {
         </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">规则列表</h3>
 
         {listQuery.isLoading ? <TableSkeleton columns={6} rows={5} /> : null}