diff --git a/src/main/java/com/gxwebsoft/cms/controller/CmsNavigationController.java b/src/main/java/com/gxwebsoft/cms/controller/CmsNavigationController.java
index 3b62c5f..74ccb10 100644
--- a/src/main/java/com/gxwebsoft/cms/controller/CmsNavigationController.java
+++ b/src/main/java/com/gxwebsoft/cms/controller/CmsNavigationController.java
@@ -21,6 +21,7 @@ import com.gxwebsoft.cms.param.CmsNavigationParam;
 import com.gxwebsoft.common.core.web.ApiResult;
 import com.gxwebsoft.common.core.web.PageResult;
 import com.gxwebsoft.common.core.web.BatchParam;
+import com.gxwebsoft.common.core.exception.BusinessException;
 import com.gxwebsoft.common.system.entity.User;
 import com.gxwebsoft.common.system.service.UserService;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -103,6 +104,8 @@ public class CmsNavigationController extends BaseController {
     }
     // 去除前面空格
     cmsNavigation.setTitle(StrUtil.trimStart(cmsNavigation.getTitle()));
+    // 单页模型绑定唯一性校验：同一租户下同一个单页只能绑定一个栏目
+    checkPageBindingUnique(cmsNavigation);
     if (cmsNavigationService.save(cmsNavigation)) {
       // 添加成功事务处理
       cmsNavigationService.saveAsync(cmsNavigation);
@@ -116,6 +119,8 @@ public class CmsNavigationController extends BaseController {
   @Operation(summary = "修改网站导航记录表")
   @PutMapping()
   public ApiResult<?> update(@RequestBody CmsNavigation cmsNavigation) {
+    // 单页模型绑定唯一性校验：同一租户下同一个单页只能绑定一个栏目
+    checkPageBindingUnique(cmsNavigation);
     if (cmsNavigationService.updateById(cmsNavigation)) {
       // 修改成功事务处理
       cmsNavigationService.saveAsync(cmsNavigation);
@@ -281,6 +286,26 @@ public class CmsNavigationController extends BaseController {
     }
   }
 
+  /**
+   * 校验单页绑定唯一性：同一租户下同一个单页（pageId）只能绑定一个栏目，
+   * 避免触发 cms_navigation.uk_navigation_tenant_page 唯一索引导致用户看到"操作失败"。
+   */
+  private void checkPageBindingUnique(CmsNavigation cmsNavigation) {
+    if (!"page".equals(cmsNavigation.getModel()) || cmsNavigation.getPageId() == null) {
+      return;
+    }
+    LambdaQueryWrapper<CmsNavigation> wrapper = new LambdaQueryWrapper<>();
+    wrapper.eq(CmsNavigation::getTenantId, getTenantId())
+        .eq(CmsNavigation::getPageId, cmsNavigation.getPageId())
+        .eq(CmsNavigation::getDeleted, 0);
+    if (cmsNavigation.getNavigationId() != null) {
+      wrapper.ne(CmsNavigation::getNavigationId, cmsNavigation.getNavigationId());
+    }
+    if (cmsNavigationService.count(wrapper) > 0) {
+      throw new BusinessException("该单页已被其他栏目绑定，请先解绑后再绑定");
+    }
+  }
+
   /**
    * 递归创建子级导航
    */
diff --git a/src/main/java/com/gxwebsoft/cms/controller/CmsWebsiteController.java b/src/main/java/com/gxwebsoft/cms/controller/CmsWebsiteController.java
index ddf42de..fbd0f63 100644
--- a/src/main/java/com/gxwebsoft/cms/controller/CmsWebsiteController.java
+++ b/src/main/java/com/gxwebsoft/cms/controller/CmsWebsiteController.java
@@ -134,6 +134,9 @@ public class CmsWebsiteController extends BaseController {
       cmsWebsite.setWebsiteCode(null);
     }
     if (cmsWebsiteService.updateById(cmsWebsite)) {
+      // 站点信息（含 domain / templateId 等）有 1 天 Redis 缓存，改完必须立刻失效，
+      // 否则公开站与后台链接拼接最长 1 天读到旧值（与 CmsNavigationController 写操作保持一致）。
+      clearSiteInfoCacheQuietly();
       return success("修改成功");
     }
     return fail("修改失败");
@@ -144,11 +147,30 @@ public class CmsWebsiteController extends BaseController {
   @PutMapping("/updateAll")
   public ApiResult<?> updateAll(@RequestBody CmsWebsite cmsWebsite) {
     if (cmsWebsiteService.updateByIdAll(cmsWebsite)) {
+      clearSiteInfoCacheQuietly();
       return success("修改成功");
     }
     return fail("修改失败");
   }
 
+  /**
+   * 清除当前租户的站点信息缓存。
+   * 缓存失效属于写操作的附带动作，异常不应影响主流程（更新本身已成功）。
+   */
+  private void clearSiteInfoCacheQuietly() {
+    try {
+      Integer tenantId = getTenantId();
+      if (ObjectUtil.isEmpty(tenantId)) {
+        return;
+      }
+      redisUtil.delete(SITE_INFO_KEY_PREFIX.concat(tenantId.toString()));
+      redisUtil.delete(MP_INFO_KEY_PREFIX.concat(tenantId.toString()));
+      log.info("已清除站点信息缓存，租户ID: {}", tenantId);
+    } catch (Exception e) {
+      log.warn("清除站点信息缓存失败: {}", e.getMessage());
+    }
+  }
+
   @PreAuthorize("hasAuthority('cms:website:remove')")
   @Operation(summary = "删除网站信息记录表")
   @DeleteMapping("/{id}")