diff --git a/reading-platform-frontend/src/components/course-edit/Step1BasicInfo.vue b/reading-platform-frontend/src/components/course-edit/Step1BasicInfo.vue
index f346e1f..f32cd83 100644
--- a/reading-platform-frontend/src/components/course-edit/Step1BasicInfo.vue
+++ b/reading-platform-frontend/src/components/course-edit/Step1BasicInfo.vue
@@ -130,6 +130,7 @@ import { PlusOutlined } from '@ant-design/icons-vue';
 import { getThemeList } from '@/api/theme';
 import { uploadFile, getFileUrl } from '@/api/file';
 import type { Theme } from '@/api/theme';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 interface BasicInfoData {
   name: string;
@@ -316,6 +317,10 @@ const handleChange = () => {
 // 验证
 const validate = async () => {
   try {
+    // 提交前统一去除首尾空格（仅处理 plain object/array 内字符串）
+    trimFormModel(formData as any);
+    // 同步到父组件 v-model，避免只改了子组件内部状态导致提交仍带空格
+    handleChange();
     await formRef.value?.validate();
 
     // 校验课程封面
diff --git a/reading-platform-frontend/src/components/course/LessonConfigPanel.vue b/reading-platform-frontend/src/components/course/LessonConfigPanel.vue
index 96543b3..c428704 100644
--- a/reading-platform-frontend/src/components/course/LessonConfigPanel.vue
+++ b/reading-platform-frontend/src/components/course/LessonConfigPanel.vue
@@ -204,6 +204,7 @@ import type { FormInstance } from 'ant-design-vue';
 import FileUploader from './FileUploader.vue';
 import LessonStepsEditor from './LessonStepsEditor.vue';
 import type { StepData } from './LessonStepsEditor.vue';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 export interface LessonData {
   id?: number | string;
@@ -360,6 +361,10 @@ const handleChange = () => {
 // 表单校验（供 Step4/5/6 调用）
 const validate = async () => {
   try {
+    // 提交前统一去除首尾空格（仅处理 plain object/array 内字符串）
+    trimFormModel(lessonData as any);
+    // 同步到父组件 v-model，避免提交仍带空格
+    handleChange();
     await formRef.value?.validate();
     return { valid: true, errors: [] as string[] };
   } catch (err: any) {
diff --git a/reading-platform-frontend/src/utils/trimFormModel.ts b/reading-platform-frontend/src/utils/trimFormModel.ts
new file mode 100644
index 0000000..555381a
--- /dev/null
+++ b/reading-platform-frontend/src/utils/trimFormModel.ts
@@ -0,0 +1,47 @@
+/**
+ * 深度去除对象/数组中所有字符串的前后空格，并尽量避免破坏非“普通对象”的结构（例如 Dayjs 实例）。
+ *
+ * 该函数会“就地修改”传入的 model（适配 ant-design-vue 的表单 v-model/validate 习惯）。
+ */
+
+type AnyRecord = Record<string, unknown>;
+
+const isPlainObject = (val: unknown): val is AnyRecord => {
+  if (val === null || typeof val !== 'object') return false;
+  const proto = Object.getPrototypeOf(val);
+  return proto === Object.prototype || proto === null;
+};
+
+const walk = (val: unknown, seen: WeakSet<object>): unknown => {
+  if (typeof val === 'string') {
+    return val.trim();
+  }
+
+  if (Array.isArray(val)) {
+    for (let i = 0; i < val.length; i++) {
+      val[i] = walk(val[i], seen) as any;
+    }
+    return val;
+  }
+
+  if (val && typeof val === 'object') {
+    // 仅处理普通对象；其余对象（如 Date/Dayjs/自定义 class）保持原样
+    if (!isPlainObject(val)) return val;
+    if (seen.has(val)) return val;
+    seen.add(val);
+
+    for (const key of Object.keys(val)) {
+      (val as AnyRecord)[key] = walk((val as AnyRecord)[key], seen);
+    }
+    return val;
+  }
+
+  return val;
+};
+
+export function trimFormModel<T>(model: T): T {
+  // 普通对象/数组一般不会包含循环引用，但这里做个保护
+  const seen = new WeakSet<object>();
+  return walk(model, seen) as T;
+}
+
diff --git a/reading-platform-frontend/src/views/admin/tenants/TenantListView.vue b/reading-platform-frontend/src/views/admin/tenants/TenantListView.vue
index 0a87894..2a69f6d 100644
--- a/reading-platform-frontend/src/views/admin/tenants/TenantListView.vue
+++ b/reading-platform-frontend/src/views/admin/tenants/TenantListView.vue
@@ -341,6 +341,7 @@ import {
   LOGIN_ACCOUNT_PATTERN_MESSAGE,
   LOGIN_ACCOUNT_PLACEHOLDER,
 } from '@/constants/loginAccount';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 // 搜索表单
 const searchForm = reactive({
@@ -570,6 +571,8 @@ const handleEdit = (record: Tenant) => {
 // 弹窗确认
 const handleModalOk = async () => {
   try {
+    // 提交前先移除表单字符串字段首尾空格，避免仅有空格导致的误校验
+    trimFormModel(formData as any);
     await formRef.value?.validate();
   } catch {
     return;
diff --git a/reading-platform-frontend/src/views/school/classes/ClassListView.vue b/reading-platform-frontend/src/views/school/classes/ClassListView.vue
index 2f9d1dd..1fdb370 100644
--- a/reading-platform-frontend/src/views/school/classes/ClassListView.vue
+++ b/reading-platform-frontend/src/views/school/classes/ClassListView.vue
@@ -324,6 +324,7 @@ import {
   removeClassTeacher,
 } from '@/api/school';
 import type { ClassInfo, CreateClassDto, Teacher, Student, ClassTeacher, AddClassTeacherDto } from '@/api/school';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 // Custom gender icons as components
 const BoyOutlined = {
@@ -511,6 +512,8 @@ const getPrimaryTeacherId = (teachers?: ClassTeacher[]): number | undefined => {
 
 const handleModalOk = async () => {
   try {
+    // 提交前移除字符串字段首尾空格，避免空格导致的误校验
+    trimFormModel(formState as any);
     await formRef.value?.validate();
     submitting.value = true;
 
diff --git a/reading-platform-frontend/src/views/school/growth/GrowthRecordView.vue b/reading-platform-frontend/src/views/school/growth/GrowthRecordView.vue
index 5e78c8f..2cbbf9e 100644
--- a/reading-platform-frontend/src/views/school/growth/GrowthRecordView.vue
+++ b/reading-platform-frontend/src/views/school/growth/GrowthRecordView.vue
@@ -274,6 +274,7 @@ import {
 import { message } from 'ant-design-vue';
 import type { FormInstance } from 'ant-design-vue';
 import { fileApi, validateFileType } from '@/api/file';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 const loading = ref(false);
 const submitting = ref(false);
@@ -395,6 +396,8 @@ const handleDelete = async (id: number) => {
 
 const handleModalOk = async () => {
   try {
+    // 提交前移除字符串字段首尾空格，避免空格导致的误校验
+    trimFormModel(formState as any);
     await formRef.value?.validate();
     submitting.value = true;
     message.success(isEdit.value ? '更新成功' : '添加成功');
diff --git a/reading-platform-frontend/src/views/school/parents/ParentListView.vue b/reading-platform-frontend/src/views/school/parents/ParentListView.vue
index 242c5b2..48e2c41 100644
--- a/reading-platform-frontend/src/views/school/parents/ParentListView.vue
+++ b/reading-platform-frontend/src/views/school/parents/ParentListView.vue
@@ -347,6 +347,7 @@ import {
   LOGIN_ACCOUNT_PATTERN_MESSAGE,
   LOGIN_ACCOUNT_PLACEHOLDER,
 } from '@/constants/loginAccount';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 // 状态辅助函数
 const getParentStatusText = (status: string): string => {
@@ -507,6 +508,8 @@ const handleEdit = (record: Parent) => {
 
 const handleModalOk = async () => {
   try {
+    // 提交前先移除表单字符串字段首尾空格，避免空格导致的校验失败
+    trimFormModel(formState as any);
     await formRef.value?.validate();
     submitting.value = true;
 
diff --git a/reading-platform-frontend/src/views/school/schedule/ScheduleList.vue b/reading-platform-frontend/src/views/school/schedule/ScheduleList.vue
index 6c0914a..03f809b 100644
--- a/reading-platform-frontend/src/views/school/schedule/ScheduleList.vue
+++ b/reading-platform-frontend/src/views/school/schedule/ScheduleList.vue
@@ -183,6 +183,7 @@ import {
   type Teacher,
 } from '@/api/school';
 import { getLessonTypeName, getLessonTagStyle, translateGenericStatus, getGenericStatusStyle } from '@/utils/tagMaps';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 // 状态辅助函数
 const getScheduleStatusText = (status: string): string => {
@@ -369,6 +370,8 @@ const handleModalCancel = () => {
 
 const handleSubmit = async () => {
   try {
+    // 提交前移除字符串字段首尾空格，避免空格导致的误校验
+    trimFormModel(formState as any);
     await formRef.value?.validate();
     modalLoading.value = true;
 
diff --git a/reading-platform-frontend/src/views/school/students/StudentListView.vue b/reading-platform-frontend/src/views/school/students/StudentListView.vue
index 3ff003c..806f98f 100644
--- a/reading-platform-frontend/src/views/school/students/StudentListView.vue
+++ b/reading-platform-frontend/src/views/school/students/StudentListView.vue
@@ -345,6 +345,7 @@ import {
 } from '@/api/school';
 import type { Student, CreateStudentDto, ClassInfo, ImportResult, StudentClassHistory, TransferStudentDto } from '@/api/school';
 import dayjs from 'dayjs';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 const loading = ref(false);
 const classesLoading = ref(false);
@@ -513,6 +514,8 @@ const handleEdit = (record: Student) => {
 
 const handleModalOk = async () => {
   try {
+    // 提交前移除字符串字段首尾空格，避免空格导致的校验失败
+    trimFormModel(formState as any);
     await formRef.value?.validate();
     const classId = formState.classId;
     if (Number(classId || '-1') < 0) {
diff --git a/reading-platform-frontend/src/views/school/teachers/TeacherListView.vue b/reading-platform-frontend/src/views/school/teachers/TeacherListView.vue
index 25b68da..006e7d1 100644
--- a/reading-platform-frontend/src/views/school/teachers/TeacherListView.vue
+++ b/reading-platform-frontend/src/views/school/teachers/TeacherListView.vue
@@ -239,6 +239,7 @@ import {
   LOGIN_ACCOUNT_PATTERN_MESSAGE,
   LOGIN_ACCOUNT_PLACEHOLDER,
 } from '@/constants/loginAccount';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 // 状态辅助函数
 const getTeacherStatusText = (status: string): string => {
@@ -390,6 +391,8 @@ const handleEdit = (record: Teacher) => {
 
 const handleModalOk = async () => {
   try {
+    // 提交前先移除表单字符串字段首尾空格，避免空格导致的校验失败
+    trimFormModel(formState as any);
     await formRef.value?.validate();
     submitting.value = true;
 
diff --git a/reading-platform-frontend/src/views/teacher/growth/GrowthRecordView.vue b/reading-platform-frontend/src/views/teacher/growth/GrowthRecordView.vue
index b987aa1..c6f3dee 100644
--- a/reading-platform-frontend/src/views/teacher/growth/GrowthRecordView.vue
+++ b/reading-platform-frontend/src/views/teacher/growth/GrowthRecordView.vue
@@ -245,6 +245,7 @@ import {
   type CreateGrowthRecordDto,
   type UpdateGrowthRecordDto,
 } from '@/api/growth';
+import { trimFormModel } from '@/utils/trimFormModel';
 
 // 图片加载状态管理
 const recordLoadingStates = ref<Record<number, boolean>>({});
@@ -421,6 +422,8 @@ const handleDelete = async (id: number) => {
 
 const handleModalOk = async () => {
   try {
+    // 提交前移除字符串字段首尾空格，避免空格导致的误校验
+    trimFormModel(formState as any);
     await formRef.value?.validate();
     submitting.value = true;
 
diff --git a/reading-platform-frontend/tests/e2e/admin/06-tenants.spec.ts b/reading-platform-frontend/tests/e2e/admin/06-tenants.spec.ts
index 5508d71..31e39c0 100644
--- a/reading-platform-frontend/tests/e2e/admin/06-tenants.spec.ts
+++ b/reading-platform-frontend/tests/e2e/admin/06-tenants.spec.ts
@@ -194,19 +194,19 @@ test.describe('租户管理', () => {
 
       // 填写学校名称
       const nameInput = page.locator('input[placeholder*="学校名称"]');
-      await nameInput.fill(TEST_DATA.tenant.name);
+      await nameInput.fill(`  ${TEST_DATA.tenant.name}  `);
 
       // 填写登录账号
       const accountInput = page.locator('input[placeholder*="登录账号"]');
-      await accountInput.fill(TEST_DATA.tenant.account);
+      await accountInput.fill(`  ${TEST_DATA.tenant.account}  `);
 
       // 填写联系人
       const contactInput = page.locator('input[placeholder*="联系人"]');
-      await contactInput.fill(TEST_DATA.tenant.contactPerson);
+      await contactInput.fill(`  ${TEST_DATA.tenant.contactPerson}  `);
 
       // 填写联系电话
       const phoneInput = page.locator('input[placeholder*="联系电话"]');
-      await phoneInput.fill(TEST_DATA.tenant.contactPhone);
+      await phoneInput.fill(`  ${TEST_DATA.tenant.contactPhone}  `);
 
       // 选择套餐类型
       const packageSelect = page.locator('[placeholder*="套餐类型"]');
diff --git a/reading-platform-frontend/tests/e2e/school/05-teachers.spec.ts b/reading-platform-frontend/tests/e2e/school/05-teachers.spec.ts
index 6996630..fe2543d 100644
--- a/reading-platform-frontend/tests/e2e/school/05-teachers.spec.ts
+++ b/reading-platform-frontend/tests/e2e/school/05-teachers.spec.ts
@@ -54,12 +54,12 @@ test.describe('学校端教师管理功能', () => {
 
       const nameInput = page.locator('input[placeholder*="教师姓名"]').or(page.locator('input[formitemlabel*="姓名"]'));
       if (await nameInput.count() > 0) {
-        await nameInput.first().fill(teacherName);
+        await nameInput.first().fill(`  ${teacherName}  `);
       }
 
       const accountInput = page.locator('input[placeholder*="账号"]').or(page.locator('input[formitemlabel*="账号"]'));
       if (await accountInput.count() > 0) {
-        await accountInput.first().fill(teacherAccount);
+        await accountInput.first().fill(`  ${teacherAccount}  `);
       }
 
       const passwordInput = page.locator('input[placeholder*="密码"]').or(page.locator('input[type="password"]'));
diff --git a/reading-platform-frontend/tests/e2e/school/06-parents.spec.ts b/reading-platform-frontend/tests/e2e/school/06-parents.spec.ts
index 2350dbd..19c6a72 100644
--- a/reading-platform-frontend/tests/e2e/school/06-parents.spec.ts
+++ b/reading-platform-frontend/tests/e2e/school/06-parents.spec.ts
@@ -51,15 +51,21 @@ test.describe('学校端家长管理功能', () => {
       // 4. 填写家长信息
       const parentName = `测试家长_${Date.now()}`;
       const parentPhone = `138${Date.now().toString().substring(5)}`;
+      const parentAccount = `parent_test_${Date.now()}`;
 
       const nameInput = page.locator('input[placeholder*="家长姓名"]').or(page.locator('input[formitemlabel*="姓名"]'));
       if (await nameInput.count() > 0) {
-        await nameInput.first().fill(parentName);
+        await nameInput.first().fill(`  ${parentName}  `);
       }
 
       const phoneInput = page.locator('input[placeholder*="手机号"]').or(page.locator('input[formitemlabel*="手机"]'));
       if (await phoneInput.count() > 0) {
-        await phoneInput.first().fill(parentPhone);
+        await phoneInput.first().fill(`  ${parentPhone}  `);
+      }
+
+      const accountInput = page.locator('input[placeholder*="账号"]').or(page.locator('input[formitemlabel*="账号"]'));
+      if (await accountInput.count() > 0) {
+        await accountInput.first().fill(`  ${parentAccount}  `);
       }
 
       // 5. 点击确定按钮