页面接口对接，以及样式调整

frontend/src/views/teachOffice/subject/index.vue

@@ -298,7 +298,7 @@
 </template>
 
 <script>
-import { listSubject, addSubject, updateSubject, deleteSubject, getSubject } from '@/api/teachOffice/subject'
+import { listKb as listSubject, addKb as addSubject, updateKb as updateSubject, deleteKb as deleteSubject, getKb } from '@/api/teachOffice/kb'
 
 export default {
   name: 'SubjectIndex',
@@ -565,6 +565,10 @@ export default {
 </script>
 
 <style scoped lang="scss">
+.app-container {
+  padding: 20px;
+}
+
 // ==================== 1. 顶部状态提示 ====================
 .status-tip {
   display: inline-block;
@@ -578,6 +582,8 @@ export default {
 
 // ==================== 2. 查询条件区域 ====================
 .search-card {
+  margin-bottom: 16px;
+
   .query-field {
     display: flex;
     align-items: center;