diff --git a/src/endpoints/homepage.ts b/src/endpoints/homepage.ts
new file mode 100644
index 0000000..4b31d4c
--- /dev/null
+++ b/src/endpoints/homepage.ts
@@ -0,0 +1,72 @@
+import type { Endpoint } from 'payload'
+
+export const homepageDataEndpoint: Endpoint = {
+  path: '/homepage-data',
+  method: 'get',
+  handler: async (req) => {
+    try {
+      const payload = req.payload
+
+      // 获取首页公告（已发布且在首页显示）
+      const announcements = await payload.find({
+        collection: 'announcements',
+        where: {
+          and: [
+            {
+              status: {
+                equals: 'published',
+              },
+            },
+            {
+              showOnHomepage: {
+                equals: true,
+              },
+            },
+          ],
+        },
+        sort: '-priority',
+        limit: 10,
+      })
+
+      // 获取 Hero Slider
+      const heroSlider = await payload.findGlobal({
+        slug: 'hero-slider',
+      })
+
+      // 获取产品推荐
+      const productRecommendations = await payload.findGlobal({
+        slug: 'product-recommendations',
+      })
+
+      // 构建响应数据
+      const response = {
+        announcements: announcements.docs.map((announcement) => ({
+          id: announcement.id,
+          title: announcement.title,
+          type: announcement.type,
+          summary: announcement.summary,
+          priority: announcement.priority,
+          publishedAt: announcement.publishedAt,
+        })),
+        heroSlider: {
+          slides: heroSlider.slides || [],
+        },
+        productRecommendations: {
+          enabled: productRecommendations.enabled || false,
+          lists: productRecommendations.lists || [],
+        },
+      }
+
+      return Response.json(response, { status: 200 })
+    } catch (error: any) {
+      req.payload.logger.error('Error fetching homepage data:', error)
+      return Response.json(
+        {
+          error: 'Failed to fetch homepage data',
+          message: error.message,
+        },
+        { status: 500 }
+      )
+    }
+  },
+}
diff --git a/src/globals/SiteAccess.ts b/src/globals/SiteAccess.ts
new file mode 100644
index 0000000..25dd81c
--- /dev/null
+++ b/src/globals/SiteAccess.ts
@@ -0,0 +1,79 @@
+import type { GlobalConfig } from 'payload'
+
+export const SiteAccess: GlobalConfig = {
+  slug: 'site-access',
+  label: {
+    en: 'Site Access Control',
+    zh: '站点访问控制',
+  },
+  access: {
+    read: () => true, // 公开可读，前端需要检查访问状态
+    update: ({ req: { user } }) => {
+      // 只有 admin 可以更新
+      if (!user) return false
+      return user.roles?.includes('admin') || false
+    },
+  },
+  admin: {
+    group: {
+      en: 'System',
+      zh: '系统',
+    },
+    description: {
+      en: 'Control site accessibility and maintenance mode',
+      zh: '控制站点可访问性和维护模式',
+    },
+  },
+  fields: [
+    {
+      name: 'isAccessible',
+      type: 'checkbox',
+      label: {
+        en: 'Site Accessible',
+        zh: '站点可访问',
+      },
+      defaultValue: true,
+      required: true,
+      admin: {
+        description: {
+          en: 'Toggle to enable/disable public access to the site',
+          zh: '切换以启用/禁用站点的公开访问',
+        },
+      },
+    },
+    {
+      name: 'maintenanceMessage',
+      type: 'textarea',
+      label: {
+        en: 'Maintenance Message',
+        zh: '维护提示消息',
+      },
+      defaultValue: 'The site is currently under maintenance. Please check back later.',
+      required: true,
+      admin: {
+        description: {
+          en: 'Message to display when site is not accessible',
+          zh: '站点不可访问时显示的消息',
+        },
+        rows: 4,
+      },
+    },
+    {
+      name: 'estimatedRestoreTime',
+      type: 'date',
+      label: {
+        en: 'Estimated Restore Time',
+        zh: '预计恢复时间',
+      },
+      admin: {
+        description: {
+          en: 'Optional: When the site is expected to be back online',
+          zh: '可选：预计站点恢复在线的时间',
+        },
+        date: {
+          displayFormat: 'yyyy-MM-dd HH:mm',
+        },
+      },
+    },
+  ],
+}
diff --git a/src/payload-types.ts b/src/payload-types.ts
index b2c4c1f..d7ac0ef 100644
--- a/src/payload-types.ts
+++ b/src/payload-types.ts
@@ -104,12 +104,14 @@ export interface Config {
     'logs-manager': LogsManager;
     'hero-slider': HeroSlider;
     'product-recommendations': ProductRecommendation;
+    'site-access': SiteAccess;
   };
   globalsSelect: {
     'admin-settings': AdminSettingsSelect<false> | AdminSettingsSelect<true>;
     'logs-manager': LogsManagerSelect<false> | LogsManagerSelect<true>;
     'hero-slider': HeroSliderSelect<false> | HeroSliderSelect<true>;
     'product-recommendations': ProductRecommendationsSelect<false> | ProductRecommendationsSelect<true>;
+    'site-access': SiteAccessSelect<false> | SiteAccessSelect<true>;
   };
   locale: null;
   user: User;
@@ -1042,6 +1044,29 @@ export interface ProductRecommendation {
   updatedAt?: string | null;
   createdAt?: string | null;
 }
+/**
+ * Control site accessibility and maintenance mode
+ *
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "site-access".
+ */
+export interface SiteAccess {
+  id: number;
+  /**
+   * Toggle to enable/disable public access to the site
+   */
+  isAccessible: boolean;
+  /**
+   * Message to display when site is not accessible
+   */
+  maintenanceMessage: string;
+  /**
+   * Optional: When the site is expected to be back online
+   */
+  estimatedRestoreTime?: string | null;
+  updatedAt?: string | null;
+  createdAt?: string | null;
+}
 /**
  * This interface was referenced by `Config`'s JSON-Schema
  * via the `definition` "admin-settings_select".
@@ -1103,6 +1128,18 @@ export interface ProductRecommendationsSelect<T extends boolean = true> {
   createdAt?: T;
   globalType?: T;
 }
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "site-access_select".
+ */
+export interface SiteAccessSelect<T extends boolean = true> {
+  isAccessible?: T;
+  maintenanceMessage?: T;
+  estimatedRestoreTime?: T;
+  updatedAt?: T;
+  createdAt?: T;
+  globalType?: T;
+}
 /**
  * This interface was referenced by `Config`'s JSON-Schema
  * via the `definition` "TaskSchedulePublish".
diff --git a/src/payload.config.ts b/src/payload.config.ts
index 8376cf7..3d8d3c0 100644
--- a/src/payload.config.ts
+++ b/src/payload.config.ts
@@ -16,9 +16,11 @@ import { AdminSettings } from './globals/AdminSettings'
 import { LogsManager } from './globals/LogsManager'
 import { HeroSlider } from './globals/HeroSlider'
 import { ProductRecommendations } from './globals/ProductRecommendations'
+import { SiteAccess } from './globals/SiteAccess'
 import { s3Storage } from '@payloadcms/storage-s3'
 import { en } from '@payloadcms/translations/languages/en'
 import { zh } from '@payloadcms/translations/languages/zh'
+import { homepageDataEndpoint } from './endpoints/homepage'
 
 // 导入自定义翻译
 import enProducts from './translations/en/products.json'
@@ -48,7 +50,8 @@ export default buildConfig({
     fallbackLanguage: 'zh',
   },
   collections: [Users, Media, Products, PreorderProducts, Announcements, Articles, Logs],
-  globals: [AdminSettings, LogsManager, HeroSlider, ProductRecommendations],
+  globals: [AdminSettings, LogsManager, HeroSlider, ProductRecommendations, SiteAccess],
+  endpoints: [homepageDataEndpoint],
   editor: lexicalEditor(),
   secret: process.env.PAYLOAD_SECRET || '',
   typescript: {