diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..94a25f7f
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/client/env.d.ts b/client/env.d.ts
index 323c78a6..65d697c5 100644
--- a/client/env.d.ts
+++ b/client/env.d.ts
@@ -1,5 +1,9 @@
 /// <reference types="vite/client" />
 
+interface ImportMetaEnv {
+  readonly VITE_PORTAL_SITE_CODE?: string
+}
+
 declare module '*.vue' {
   import type { DefineComponent } from 'vue'
   const component: DefineComponent<{}, {}, any>
diff --git a/client/src/api/index.ts b/client/src/api/index.ts
index c4d63a99..05554048 100644
--- a/client/src/api/index.ts
+++ b/client/src/api/index.ts
@@ -1,4 +1,5 @@
 import request from '@/utils/request'
+import { portalSiteQueryParams } from '@/config/portalSite'
 
 export const portalApi = {
   getCompanyInfo: () => request.get('/portal/company'),
@@ -17,9 +18,12 @@ export const portalApi = {
   getCaseCategories: () => request.get('/portal/case/category'),
   getCases: (params?: any) => request.get('/portal/case', { params }),
   getCaseById: (id: number) => request.get(`/portal/case/${id}`),
-  getNewsCategories: () => request.get('/portal/news/category'),
-  getNewsList: (params?: any) => request.get('/portal/news', { params }),
-  getNewsById: (id: number) => request.get(`/portal/news/${id}`),
+  getNewsCategories: () =>
+    request.get('/portal/news/category', { params: { ...portalSiteQueryParams() } }),
+  getNewsList: (params?: any) =>
+    request.get('/portal/news', { params: { ...portalSiteQueryParams(), ...params } }),
+  getNewsById: (id: number) =>
+    request.get(`/portal/news/${id}`, { params: { ...portalSiteQueryParams() } }),
 }
 
 export const adminApi = {
@@ -85,11 +89,12 @@ export const adminApi = {
   addCaseCategory: (data: any) => request.post('/admin/case/category', data),
   deleteCaseCategory: (id: number) => request.delete(`/admin/case/category/${id}`),
 
-  getNewsList: (params?: any) => request.get('/admin/news', { params }),
+  getNewsList: (params?: any) => request.get('/admin/news', { params: { ...params } }),
   addNews: (data: any) => request.post('/admin/news', data),
   updateNews: (data: any) => request.put('/admin/news', data),
   deleteNews: (id: number) => request.delete(`/admin/news/${id}`),
-  getNewsCategories: () => request.get('/admin/news/category'),
+  getNewsCategories: (params?: any) =>
+    request.get('/admin/news/category', { params: { ...params } }),
   addNewsCategory: (data: any) => request.post('/admin/news/category', data),
   deleteNewsCategory: (id: number) => request.delete(`/admin/news/category/${id}`),
 
diff --git a/client/src/config/portalSite.ts b/client/src/config/portalSite.ts
new file mode 100644
index 00000000..388a2c99
--- /dev/null
+++ b/client/src/config/portalSite.ts
@@ -0,0 +1,8 @@
+/** 前台新闻等接口按站点隔离；与后端 app.portal.allowed-site-codes 一致。不设则走后端默认 site-code。 */
+export function portalSiteQueryParams(): Record<string, string> {
+  const code = import.meta.env.VITE_PORTAL_SITE_CODE as string | undefined
+  if (code && String(code).trim() !== '') {
+    return { siteCode: String(code).trim().toLowerCase() }
+  }
+  return {}
+}
diff --git a/client/src/views/admin/NewsPage.vue b/client/src/views/admin/NewsPage.vue
index 2f5ac55b..d3d68eeb 100644
--- a/client/src/views/admin/NewsPage.vue
+++ b/client/src/views/admin/NewsPage.vue
@@ -2,10 +2,19 @@
   <div class="admin-crud-page">
     <div class="page-header">
       <h2>新闻管理</h2>
-      <el-button type="primary" @click="openDialog()">新增新闻</el-button>
+      <div class="page-header-filters">
+        <span style="margin-right:8px">站点</span>
+        <el-select v-model="filterSiteCode" placeholder="全部站点" clearable style="width:180px" @change="loadList">
+          <el-option label="全部站点" value="" />
+          <el-option label="主站 wuhansaga" value="wuhansaga" />
+          <el-option label="第二站点 saga-secondary" value="saga-secondary" />
+        </el-select>
+        <el-button type="primary" style="margin-left:12px" @click="openDialog()">新增新闻</el-button>
+      </div>
     </div>
     <el-table :data="list" border stripe v-loading="loading">
       <el-table-column prop="newsId" label="ID" width="80" />
+      <el-table-column prop="siteCode" label="站点" width="130" />
       <el-table-column label="封面" width="140">
         <template #default="{ row }">
           <el-image v-if="row.coverImage" :src="uploadPublicUrl(row.coverImage)" style="width:100px;height:50px;" fit="cover" />
@@ -31,7 +40,17 @@
       <el-form :model="form" label-width="120px">
         <el-form-item label="标题(中)"><el-input v-model="form.titleZh" /></el-form-item>
         <el-form-item label="标题(英)"><el-input v-model="form.titleEn" /></el-form-item>
-        <el-form-item label="分类ID"><el-input-number v-model="form.categoryId" :min="1" /></el-form-item>
+        <el-form-item label="站点">
+          <el-select v-model="form.siteCode" placeholder="请选择" style="width:100%" @change="onFormSiteChange">
+            <el-option label="主站 wuhansaga" value="wuhansaga" />
+            <el-option label="第二站点 saga-secondary" value="saga-secondary" />
+          </el-select>
+        </el-form-item>
+        <el-form-item label="分类">
+          <el-select v-model="form.categoryId" placeholder="请选择分类" style="width:100%">
+            <el-option v-for="cat in categoryOptions" :key="cat.newsCategoryId" :label="cat.nameZh" :value="cat.newsCategoryId" />
+          </el-select>
+        </el-form-item>
         <el-form-item label="摘要(中)"><el-input v-model="form.excerptZh" type="textarea" :rows="2" /></el-form-item>
         <el-form-item label="摘要(英)"><el-input v-model="form.excerptEn" type="textarea" :rows="2" /></el-form-item>
         <el-form-item label="内容(中)"><el-input v-model="form.contentZh" type="textarea" :rows="6" /></el-form-item>
@@ -59,14 +78,37 @@ import { uploadPublicUrl } from '@/utils/uploadUrl'
 const loading = ref(false)
 const saving = ref(false)
 const list = ref<any[]>([])
+const categoryOptions = ref<any[]>([])
+const filterSiteCode = ref('')
 const dialogVisible = ref(false)
 const editingId = ref<number | null>(null)
 const form = ref<any>({})
 
+async function loadCategoriesForForm() {
+  const site = form.value.siteCode
+  if (!site) {
+    categoryOptions.value = []
+    return
+  }
+  try {
+    const res = await adminApi.getNewsCategories({ siteCode: site })
+    categoryOptions.value = res.data ?? []
+  } catch {
+    categoryOptions.value = []
+  }
+}
+
+function onFormSiteChange() {
+  form.value.categoryId = undefined
+  loadCategoriesForForm()
+}
+
 async function loadList() {
   loading.value = true
   try {
-    const res = await adminApi.getNewsList()
+    const params: Record<string, string> = {}
+    if (filterSiteCode.value) params.siteCode = filterSiteCode.value
+    const res = await adminApi.getNewsList(params)
     list.value = res.data ?? []
   } catch {
     list.value = []
@@ -76,9 +118,16 @@ async function loadList() {
 }
 
 function openDialog(row?: any) {
-  if (row) { editingId.value = row.newsId; form.value = { ...row } }
-  else { editingId.value = null; form.value = { sortOrder: 0, isPublished: 0, isFeatured: 0, categoryId: 1 } }
+  if (row) {
+    editingId.value = row.newsId
+    form.value = { ...row }
+  } else {
+    editingId.value = null
+    const defaultSite = filterSiteCode.value || 'wuhansaga'
+    form.value = { sortOrder: 0, isPublished: 0, isFeatured: 0, siteCode: defaultSite, categoryId: undefined }
+  }
   dialogVisible.value = true
+  loadCategoriesForForm()
 }
 
 async function handleSave() {
@@ -100,5 +149,5 @@ onMounted(loadList)
 </script>
 
 <style scoped lang="less">
-.admin-crud-page { .page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; h2 { font-size: 20px; color: @gray-800; } } }
+.admin-crud-page { .page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; h2 { font-size: 20px; color: @gray-800; } .page-header-filters { display: flex; align-items: center; flex-wrap: wrap; } } }
 </style>
diff --git a/database/sql/migration_news_multisite.sql b/database/sql/migration_news_multisite.sql
new file mode 100644
index 00000000..6f278c11
--- /dev/null
+++ b/database/sql/migration_news_multisite.sql
@@ -0,0 +1,37 @@
+-- =============================================================================
+-- 新闻中心多站点：为 f_news / f_news_category 增加 site_code
+-- 执行前请备份数据库。可与 schema 增量部署，适合在 Gitea 发版后由运维一次性执行。
+-- 固定站点编码示例：wuhansaga（主站）、saga-secondary（第二站点，可按品牌改名）
+-- =============================================================================
+
+SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- 新闻分类：站点维度的栏目互相独立（不同站点可有各自一套分类及排序）
+ALTER TABLE f_news_category
+  ADD COLUMN site_code VARCHAR(32) NOT NULL DEFAULT 'wuhansaga'
+    COMMENT '站点编码：小写英文短码，如 wuhansaga、saga-secondary，扩展新站时仅增编码不改结构'
+    AFTER category_id;
+
+ALTER TABLE f_news_category
+  ADD KEY idx_f_news_category_site (site_code, del_flag, is_published, sort_order);
+
+-- 新闻正文：与分类 site_code 逻辑上一致；保存时业务侧校验 category 与 news 同属一站
+ALTER TABLE f_news
+  ADD COLUMN site_code VARCHAR(32) NOT NULL DEFAULT 'wuhansaga'
+    COMMENT '站点编码，与 f_news_category.site_code 取值域一致'
+    AFTER category_id;
+
+ALTER TABLE f_news
+  ADD KEY idx_f_news_site_list (site_code, del_flag, is_published, category_id),
+  ADD KEY idx_f_news_site_time (site_code, del_flag, is_published, create_time);
+
+-- 旧数据：全部归入主站（若第二站需相同栏目结构，可复制分类再批量改 site_code / 或导数据）
+UPDATE f_news_category SET site_code = 'wuhansaga' WHERE site_code = '' OR site_code IS NULL;
+UPDATE f_news SET site_code = 'wuhansaga' WHERE site_code = '' OR site_code IS NULL;
+
+-- ---------------------------------------------------------------------------
+-- 【可选】第二站点初始化分类骨架（与主站相同名称时仍需独立 category_id）
+-- ---------------------------------------------------------------------------
+-- INSERT INTO f_news_category (site_code, name_zh, name_en, sort_order, is_published)
+-- SELECT 'saga-secondary', name_zh, name_en, sort_order, is_published
+-- FROM f_news_category WHERE site_code = 'wuhansaga' AND del_flag = 0;
diff --git a/server/src/main/java/com/wuhansaga/server/WuhanSagaApplication.java b/server/src/main/java/com/wuhansaga/server/WuhanSagaApplication.java
index e056c6f0..94c211da 100644
--- a/server/src/main/java/com/wuhansaga/server/WuhanSagaApplication.java
+++ b/server/src/main/java/com/wuhansaga/server/WuhanSagaApplication.java
@@ -1,11 +1,14 @@
 package com.wuhansaga.server;
 
+import com.wuhansaga.server.config.PortalSiteProperties;
 import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 
 @SpringBootApplication
 @MapperScan("com.wuhansaga.server.mapper")
+@EnableConfigurationProperties(PortalSiteProperties.class)
 public class WuhanSagaApplication {
 
     public static void main(String[] args) {
diff --git a/server/src/main/java/com/wuhansaga/server/config/PortalSiteProperties.java b/server/src/main/java/com/wuhansaga/server/config/PortalSiteProperties.java
new file mode 100644
index 00000000..1307ce1a
--- /dev/null
+++ b/server/src/main/java/com/wuhansaga/server/config/PortalSiteProperties.java
@@ -0,0 +1,31 @@
+package com.wuhansaga.server.config;
+
+import com.wuhansaga.server.constant.SiteCodes;
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+import java.util.Arrays;
+import java.util.List;
+
+@Data
+@ConfigurationProperties(prefix = "app.portal")
+public class PortalSiteProperties {
+
+    /**
+     * 本实例默认站点（单域名单部署时一般不设查询参数，仅用此值）
+     */
+    private String siteCode = SiteCodes.WUHAN_SAGA;
+
+    /**
+     * 逗号分隔允许列表；请求中的 siteCode 参数或 X-Portal-Site 头必须命中此值之一
+     */
+    private String allowedSiteCodes = SiteCodes.WUHAN_SAGA + "," + SiteCodes.SAGA_SECONDARY;
+
+    public List<String> allowedCodesList() {
+        return Arrays.stream(allowedSiteCodes.split(","))
+            .map(String::trim)
+            .filter(s -> !s.isEmpty())
+            .map(s -> s.toLowerCase())
+            .toList();
+    }
+}
diff --git a/server/src/main/java/com/wuhansaga/server/config/PortalSiteResolver.java b/server/src/main/java/com/wuhansaga/server/config/PortalSiteResolver.java
new file mode 100644
index 00000000..5135c526
--- /dev/null
+++ b/server/src/main/java/com/wuhansaga/server/config/PortalSiteResolver.java
@@ -0,0 +1,54 @@
+package com.wuhansaga.server.config;
+
+import jakarta.servlet.http.HttpServletRequest;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
+
+import java.util.List;
+import java.util.Locale;
+
+/**
+ * 解析前台站点：优先级为 查询参数 siteCode &gt; 请求头 X-Portal-Site &gt; 配置文件 app.portal.site-code。
+ * 非法编码回退到默认站点并打 WARN，避免扫库枚举。
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class PortalSiteResolver {
+
+    private static final String HEADER_PORTAL_SITE = "X-Portal-Site";
+
+    private final PortalSiteProperties portalSiteProperties;
+
+    public String resolve(HttpServletRequest request) {
+        List<String> allowed = portalSiteProperties.allowedCodesList();
+        String candidate = firstNonBlank(
+            request.getParameter("siteCode"),
+            request.getHeader(HEADER_PORTAL_SITE)
+        );
+        if (StringUtils.hasText(candidate)) {
+            String normalized = candidate.trim().toLowerCase(Locale.ROOT);
+            if (allowed.contains(normalized)) {
+                return normalized;
+            }
+            log.warn("[portal] 无效站点编码 [{}]，将使用默认 [{}]", candidate, portalSiteProperties.getSiteCode());
+        }
+        String fallback = portalSiteProperties.getSiteCode().trim().toLowerCase(Locale.ROOT);
+        if (!allowed.contains(fallback)) {
+            log.warn("[portal] 默认站点 [{}] 不在 app.portal.allowed-site-codes 中，仍使用该值查询", fallback);
+        }
+        return fallback;
+    }
+
+    private static String firstNonBlank(String a, String b) {
+        if (StringUtils.hasText(a)) {
+            return a;
+        }
+        if (StringUtils.hasText(b)) {
+            return b;
+        }
+        return null;
+    }
+}
diff --git a/server/src/main/java/com/wuhansaga/server/constant/SiteCodes.java b/server/src/main/java/com/wuhansaga/server/constant/SiteCodes.java
new file mode 100644
index 00000000..964fd0ad
--- /dev/null
+++ b/server/src/main/java/com/wuhansaga/server/constant/SiteCodes.java
@@ -0,0 +1,15 @@
+package com.wuhansaga.server.constant;
+
+/**
+ * 站点编码常量：与库中 f_news.site_code / f_news_category.site_code 一致，扩展新站时在此与配置中同步增加。
+ */
+public final class SiteCodes {
+
+    private SiteCodes() {}
+
+    /** 武汉萨格主站 */
+    public static final String WUHAN_SAGA = "wuhansaga";
+
+    /** 第二站点（可按实际品牌改名，并同步改 application.yml 与库内数据） */
+    public static final String SAGA_SECONDARY = "saga-secondary";
+}
diff --git a/server/src/main/java/com/wuhansaga/server/controller/admin/AdminNewsController.java b/server/src/main/java/com/wuhansaga/server/controller/admin/AdminNewsController.java
index 946d08c5..97055dfe 100644
--- a/server/src/main/java/com/wuhansaga/server/controller/admin/AdminNewsController.java
+++ b/server/src/main/java/com/wuhansaga/server/controller/admin/AdminNewsController.java
@@ -21,11 +21,12 @@ public class AdminNewsController {
     private final NewsService newsService;
     private final NewsCategoryService newsCategoryService;
 
-    @Operation(summary = "新闻列表")
+    @Operation(summary = "新闻列表（可选 siteCode 过滤站点，不传则全部站点）")
     @GetMapping
     public R<List<News>> list(@RequestParam(required = false) Long categoryId,
-                               @RequestParam(required = false) Integer isFeatured) {
-        return R.ok(newsService.listPublished(categoryId, isFeatured));
+                               @RequestParam(required = false) Integer isFeatured,
+                               @RequestParam(required = false) String siteCode) {
+        return R.ok(newsService.listForAdmin(categoryId, isFeatured, null, siteCode));
     }
 
     @Operation(summary = "新闻详情")
@@ -55,10 +56,10 @@ public class AdminNewsController {
         return R.ok();
     }
 
-    @Operation(summary = "新闻分类列表")
+    @Operation(summary = "新闻分类列表（可选 siteCode 过滤）")
     @GetMapping("/category")
-    public R<List<NewsCategory>> listCategory() {
-        return R.ok(newsCategoryService.listAll());
+    public R<List<NewsCategory>> listCategory(@RequestParam(required = false) String siteCode) {
+        return R.ok(newsCategoryService.listAll(siteCode));
     }
 
     @Operation(summary = "新增新闻分类")
diff --git a/server/src/main/java/com/wuhansaga/server/controller/portal/PortalNewsController.java b/server/src/main/java/com/wuhansaga/server/controller/portal/PortalNewsController.java
index 73f83c34..d1be6292 100644
--- a/server/src/main/java/com/wuhansaga/server/controller/portal/PortalNewsController.java
+++ b/server/src/main/java/com/wuhansaga/server/controller/portal/PortalNewsController.java
@@ -1,12 +1,14 @@
 package com.wuhansaga.server.controller.portal;
 
 import com.wuhansaga.server.common.R;
+import com.wuhansaga.server.config.PortalSiteResolver;
 import com.wuhansaga.server.entity.News;
 import com.wuhansaga.server.entity.NewsCategory;
 import com.wuhansaga.server.service.NewsCategoryService;
 import com.wuhansaga.server.service.NewsService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.servlet.http.HttpServletRequest;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.*;
 
@@ -20,23 +22,28 @@ public class PortalNewsController {
 
     private final NewsService newsService;
     private final NewsCategoryService newsCategoryService;
+    private final PortalSiteResolver portalSiteResolver;
 
-    @Operation(summary = "新闻分类列表")
+    @Operation(summary = "新闻分类列表（按站点隔离）")
     @GetMapping("/category")
-    public R<List<NewsCategory>> listCategory() {
-        return R.ok(newsCategoryService.listPublished());
+    public R<List<NewsCategory>> listCategory(HttpServletRequest request) {
+        String siteCode = portalSiteResolver.resolve(request);
+        return R.ok(newsCategoryService.listPublished(siteCode));
     }
 
-    @Operation(summary = "新闻列表")
+    @Operation(summary = "新闻列表（按站点隔离；可选 ?siteCode=、请求头 X-Portal-Site）")
     @GetMapping
-    public R<List<News>> list(@RequestParam(required = false) Long categoryId,
-                               @RequestParam(required = false) Integer isFeatured) {
-        return R.ok(newsService.listPublished(categoryId, isFeatured));
+    public R<List<News>> list(HttpServletRequest request,
+                              @RequestParam(required = false) Long categoryId,
+                              @RequestParam(required = false) Integer isFeatured) {
+        String siteCode = portalSiteResolver.resolve(request);
+        return R.ok(newsService.listPublished(categoryId, isFeatured, siteCode));
     }
 
-    @Operation(summary = "新闻详情")
+    @Operation(summary = "新闻详情（仅返回当前站点已发布稿件）")
     @GetMapping("/{id}")
-    public R<News> getById(@PathVariable Long id) {
-        return R.ok(newsService.getPublishedById(id));
+    public R<News> getById(HttpServletRequest request, @PathVariable Long id) {
+        String siteCode = portalSiteResolver.resolve(request);
+        return R.ok(newsService.getPublishedById(id, siteCode));
     }
 }
diff --git a/server/src/main/java/com/wuhansaga/server/entity/News.java b/server/src/main/java/com/wuhansaga/server/entity/News.java
index c35fdf8d..b3039479 100644
--- a/server/src/main/java/com/wuhansaga/server/entity/News.java
+++ b/server/src/main/java/com/wuhansaga/server/entity/News.java
@@ -9,6 +9,8 @@ public class News {
 
     private Long newsId;
     private Long categoryId;
+    /** 站点编码：与新闻分类 siteCode 一致 */
+    private String siteCode;
     private String titleZh;
     private String titleEn;
     private String excerptZh;
diff --git a/server/src/main/java/com/wuhansaga/server/entity/NewsCategory.java b/server/src/main/java/com/wuhansaga/server/entity/NewsCategory.java
index 5ca44d48..b918ddcb 100644
--- a/server/src/main/java/com/wuhansaga/server/entity/NewsCategory.java
+++ b/server/src/main/java/com/wuhansaga/server/entity/NewsCategory.java
@@ -8,6 +8,8 @@ import java.time.LocalDateTime;
 public class NewsCategory {
 
     private Long newsCategoryId;
+    /** 站点编码：同站新闻、分类共用一套取值域 */
+    private String siteCode;
     private String nameZh;
     private String nameEn;
     private Integer sortOrder;
diff --git a/server/src/main/java/com/wuhansaga/server/mapper/NewsCategoryMapper.java b/server/src/main/java/com/wuhansaga/server/mapper/NewsCategoryMapper.java
index 785c5cb9..5ee29550 100644
--- a/server/src/main/java/com/wuhansaga/server/mapper/NewsCategoryMapper.java
+++ b/server/src/main/java/com/wuhansaga/server/mapper/NewsCategoryMapper.java
@@ -2,13 +2,14 @@ package com.wuhansaga.server.mapper;
 
 import com.wuhansaga.server.entity.NewsCategory;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
 
 import java.util.List;
 
 @Mapper
 public interface NewsCategoryMapper {
 
-    List<NewsCategory> selectAll();
+    List<NewsCategory> selectAll(@Param("siteCode") String siteCode);
 
     NewsCategory selectById(Long id);
 
@@ -18,5 +19,5 @@ public interface NewsCategoryMapper {
 
     int deleteById(Long id);
 
-    List<NewsCategory> selectPublished();
+    List<NewsCategory> selectPublished(@Param("siteCode") String siteCode);
 }
diff --git a/server/src/main/java/com/wuhansaga/server/mapper/NewsMapper.java b/server/src/main/java/com/wuhansaga/server/mapper/NewsMapper.java
index 31c055c9..55dd5ceb 100644
--- a/server/src/main/java/com/wuhansaga/server/mapper/NewsMapper.java
+++ b/server/src/main/java/com/wuhansaga/server/mapper/NewsMapper.java
@@ -11,11 +11,15 @@ public interface NewsMapper {
 
     List<News> selectList(@Param("categoryId") Long categoryId,
                            @Param("isFeatured") Integer isFeatured,
-                           @Param("keyword") String keyword);
+                           @Param("keyword") String keyword,
+                           @Param("isPublished") Integer isPublished,
+                           @Param("siteCode") String siteCode);
 
     long selectCount(@Param("categoryId") Long categoryId,
                      @Param("isFeatured") Integer isFeatured,
-                     @Param("keyword") String keyword);
+                     @Param("keyword") String keyword,
+                     @Param("isPublished") Integer isPublished,
+                     @Param("siteCode") String siteCode);
 
     News selectById(Long id);
 
@@ -26,7 +30,10 @@ public interface NewsMapper {
     int deleteById(Long id);
 
     List<News> selectPublished(@Param("categoryId") Long categoryId,
-                                @Param("isFeatured") Integer isFeatured);
+                                @Param("isFeatured") Integer isFeatured,
+                                @Param("siteCode") String siteCode);
+
+    News selectPublishedById(@Param("id") Long id, @Param("siteCode") String siteCode);
 
     int incrementViewCount(Long id);
 }
diff --git a/server/src/main/java/com/wuhansaga/server/service/NewsCategoryService.java b/server/src/main/java/com/wuhansaga/server/service/NewsCategoryService.java
index 388c54e3..ee7cc805 100644
--- a/server/src/main/java/com/wuhansaga/server/service/NewsCategoryService.java
+++ b/server/src/main/java/com/wuhansaga/server/service/NewsCategoryService.java
@@ -1,9 +1,11 @@
 package com.wuhansaga.server.service;
 
+import com.wuhansaga.server.constant.SiteCodes;
 import com.wuhansaga.server.entity.NewsCategory;
 import com.wuhansaga.server.mapper.NewsCategoryMapper;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
 
 import java.util.List;
 
@@ -13,12 +15,13 @@ public class NewsCategoryService {
 
     private final NewsCategoryMapper newsCategoryMapper;
 
-    public List<NewsCategory> listAll() {
-        return newsCategoryMapper.selectAll();
+    /** siteCode 为空时不过滤站点（后台全量） */
+    public List<NewsCategory> listAll(String siteCode) {
+        return newsCategoryMapper.selectAll(siteCode);
     }
 
-    public List<NewsCategory> listPublished() {
-        return newsCategoryMapper.selectPublished();
+    public List<NewsCategory> listPublished(String siteCode) {
+        return newsCategoryMapper.selectPublished(siteCode);
     }
 
     public NewsCategory getById(Long id) {
@@ -26,11 +29,18 @@ public class NewsCategoryService {
     }
 
     public void add(NewsCategory entity) {
+        if (!StringUtils.hasText(entity.getSiteCode())) {
+            entity.setSiteCode(SiteCodes.WUHAN_SAGA);
+        }
+        entity.setSiteCode(entity.getSiteCode().trim().toLowerCase());
         entity.setIsPublished(1);
         newsCategoryMapper.insert(entity);
     }
 
     public void update(NewsCategory entity) {
+        if (StringUtils.hasText(entity.getSiteCode())) {
+            entity.setSiteCode(entity.getSiteCode().trim().toLowerCase());
+        }
         newsCategoryMapper.update(entity);
     }
 
diff --git a/server/src/main/java/com/wuhansaga/server/service/NewsService.java b/server/src/main/java/com/wuhansaga/server/service/NewsService.java
index 1cb6315f..34b7f682 100644
--- a/server/src/main/java/com/wuhansaga/server/service/NewsService.java
+++ b/server/src/main/java/com/wuhansaga/server/service/NewsService.java
@@ -2,10 +2,14 @@ package com.wuhansaga.server.service;
 
 import com.wuhansaga.server.common.PageQuery;
 import com.wuhansaga.server.common.PageResult;
+import com.wuhansaga.server.constant.SiteCodes;
 import com.wuhansaga.server.entity.News;
+import com.wuhansaga.server.entity.NewsCategory;
+import com.wuhansaga.server.mapper.NewsCategoryMapper;
 import com.wuhansaga.server.mapper.NewsMapper;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
 
 import java.util.List;
 
@@ -14,40 +18,75 @@ import java.util.List;
 public class NewsService {
 
     private final NewsMapper newsMapper;
+    private final NewsCategoryMapper newsCategoryMapper;
 
     public PageResult<News> page(Long categoryId, Integer isFeatured, String keyword, PageQuery query) {
-        List<News> records = newsMapper.selectList(categoryId, isFeatured, keyword);
+        List<News> records = newsMapper.selectList(categoryId, isFeatured, keyword, null, null);
         return new PageResult<>(records, records.size(), query.getPage(), query.getSize());
     }
 
-    public List<News> listPublished(Long categoryId, Integer isFeatured) {
-        return newsMapper.selectPublished(categoryId, isFeatured);
+    public List<News> listPublished(Long categoryId, Integer isFeatured, String siteCode) {
+        return newsMapper.selectPublished(categoryId, isFeatured, siteCode);
+    }
+
+    /** 后台列表：siteCode 为空则跨站点查询 */
+    public List<News> listForAdmin(Long categoryId, Integer isFeatured, String keyword, String siteCode) {
+        return newsMapper.selectList(categoryId, isFeatured, keyword, null, siteCode);
     }
 
     public News getById(Long id) {
         return newsMapper.selectById(id);
     }
 
-    public News getPublishedById(Long id) {
-        News news = newsMapper.selectById(id);
-        if (news != null && news.getIsPublished() == 1) {
+    public News getPublishedById(Long id, String siteCode) {
+        News news = newsMapper.selectPublishedById(id, siteCode);
+        if (news != null) {
             newsMapper.incrementViewCount(id);
-            return news;
         }
-        return null;
+        return news;
     }
 
     public void add(News entity) {
+        if (!StringUtils.hasText(entity.getSiteCode())) {
+            entity.setSiteCode(SiteCodes.WUHAN_SAGA);
+        }
+        entity.setSiteCode(entity.getSiteCode().trim().toLowerCase());
+        ensureNewsCategorySite(entity);
         entity.setIsPublished(1);
         entity.setViewCount(0);
         newsMapper.insert(entity);
     }
 
     public void update(News entity) {
+        if (StringUtils.hasText(entity.getSiteCode())) {
+            entity.setSiteCode(entity.getSiteCode().trim().toLowerCase());
+        }
+        News existing = entity.getNewsId() != null ? newsMapper.selectById(entity.getNewsId()) : null;
+        Long categoryId = entity.getCategoryId() != null ? entity.getCategoryId() : (existing != null ? existing.getCategoryId() : null);
+        String siteCode = StringUtils.hasText(entity.getSiteCode())
+            ? entity.getSiteCode()
+            : (existing != null ? existing.getSiteCode() : null);
+        News probe = new News();
+        probe.setCategoryId(categoryId);
+        probe.setSiteCode(siteCode);
+        ensureNewsCategorySite(probe);
         newsMapper.update(entity);
     }
 
     public void delete(Long id) {
         newsMapper.deleteById(id);
     }
+
+    private void ensureNewsCategorySite(News entity) {
+        if (!StringUtils.hasText(entity.getSiteCode()) || entity.getCategoryId() == null) {
+            return;
+        }
+        NewsCategory cat = newsCategoryMapper.selectById(entity.getCategoryId());
+        if (cat == null) {
+            throw new IllegalArgumentException("新闻分类不存在");
+        }
+        if (!entity.getSiteCode().equals(cat.getSiteCode())) {
+            throw new IllegalArgumentException("新闻站点与分类站点不一致");
+        }
+    }
 }
diff --git a/server/src/main/resources/application.yml b/server/src/main/resources/application.yml
index c5ca9bbf..838b6190 100644
--- a/server/src/main/resources/application.yml
+++ b/server/src/main/resources/application.yml
@@ -60,3 +60,9 @@ upload:
   path: uploads/
   allowed-types: image/jpeg,image/png,image/gif,image/webp,image/svg+xml,video/mp4,video/webm
   max-size: 52428800
+
+# 新闻中心多站点：单部署实例默认站点；扩展编码时改 allowed-site-codes 与库内数据
+app:
+  portal:
+    site-code: wuhansaga
+    allowed-site-codes: wuhansaga,saga-secondary
diff --git a/server/src/main/resources/data.sql b/server/src/main/resources/data.sql
index c1cdc715..3bc6b3d6 100644
--- a/server/src/main/resources/data.sql
+++ b/server/src/main/resources/data.sql
@@ -106,30 +106,31 @@ ON DUPLICATE KEY UPDATE
 -- ================================================================
 -- 新闻分类
 -- ================================================================
-INSERT INTO f_news_category (name_zh, name_en, sort_order) VALUES
-  ('公司新闻', 'Company News', 10),
-  ('行业动态', 'Industry News', 20),
-  ('技术文章', 'Technical Articles', 30)
+INSERT INTO f_news_category (site_code, name_zh, name_en, sort_order) VALUES
+  ('wuhansaga', '公司新闻', 'Company News', 10),
+  ('wuhansaga', '行业动态', 'Industry News', 20),
+  ('wuhansaga', '技术文章', 'Technical Articles', 30)
 ON DUPLICATE KEY UPDATE 
+  site_code = VALUES(site_code),
   name_zh = VALUES(name_zh), name_en = VALUES(name_en), sort_order = VALUES(sort_order);
 
 -- ================================================================
 -- 新闻文章（示例；生产环境可替换为正式稿件）
 -- ================================================================
-INSERT INTO f_news (category_id, title_zh, title_en, excerpt_zh, excerpt_en, content_zh, content_en, is_featured, is_published, sort_order) VALUES
-  (1, '武汉萨格官网更新上线', 'Wuhan Saga Website Refresh',
+INSERT INTO f_news (category_id, site_code, title_zh, title_en, excerpt_zh, excerpt_en, content_zh, content_en, is_featured, is_published, sort_order) VALUES
+  (1, 'wuhansaga', '武汉萨格官网更新上线', 'Wuhan Saga Website Refresh',
    '集中展示连续板带处理产线、单体设备及工程案例。',
    'Highlighting strip processing lines, equipment and engineering cases.',
    '<p>武汉萨格工程技术有限公司官网已升级，客户可通过产品中心了解热镀锌、退火、酸洗及感应加热等成套装备与单体设备，并查阅成功案例与新闻资讯。</p>',
    '<p>Wuhan Saga Engineering has refreshed its website for strip galvanizing, annealing, pickling, induction heating solutions, case studies and news.</p>',
    1, 1, 10),
-  (2, '板带处理装备市场观察', 'Strip Processing Equipment Market Notes',
+  (2, 'wuhansaga', '板带处理装备市场观察', 'Strip Processing Equipment Market Notes',
    '节能与智能化连续处理机组需求持续增长。',
    'Growing demand for energy-efficient intelligent continuous lines.',
    '<p>国内外钢铁及加工企业持续投资连续镀锌、退火与酸洗机组。武汉萨格团队在设计与改造项目中注重节能环保与自动化控制。</p>',
    '<p>Steel and processing firms continue to invest in continuous galvanizing, annealing and pickling lines with emphasis on energy saving and automation.</p>',
    0, 1, 20),
-  (3, '感应加热在涂层干燥中的应用', 'Induction Heating in Coating Drying',
+  (3, 'wuhansaga', '感应加热在涂层干燥中的应用', 'Induction Heating in Coating Drying',
    '非接触加热可提高涂层烘干效率并降低能耗。',
    'Non-contact heating can improve drying efficiency and save energy.',
    '<p>感应加热适用于涂层干燥等工艺环节，可与产线控制深度集成，实现分区温控与节能运行。</p>',
diff --git a/server/src/main/resources/mapper/NewsCategoryMapper.xml b/server/src/main/resources/mapper/NewsCategoryMapper.xml
index 125430ff..57bb83bb 100644
--- a/server/src/main/resources/mapper/NewsCategoryMapper.xml
+++ b/server/src/main/resources/mapper/NewsCategoryMapper.xml
@@ -7,11 +7,15 @@
     </resultMap>
 
     <select id="selectAll" resultMap="newsCategoryResult">
-        SELECT * FROM f_news_category WHERE del_flag = 0 ORDER BY sort_order ASC
+        SELECT * FROM f_news_category WHERE del_flag = 0
+        <if test="siteCode != null and siteCode != ''">AND site_code = #{siteCode}</if>
+        ORDER BY sort_order ASC
     </select>
 
     <select id="selectPublished" resultMap="newsCategoryResult">
-        SELECT * FROM f_news_category WHERE del_flag = 0 AND is_published = 1 ORDER BY sort_order ASC
+        SELECT * FROM f_news_category WHERE del_flag = 0 AND is_published = 1
+        <if test="siteCode != null and siteCode != ''">AND site_code = #{siteCode}</if>
+        ORDER BY sort_order ASC
     </select>
 
     <select id="selectById" resultMap="newsCategoryResult">
@@ -19,13 +23,14 @@
     </select>
 
     <insert id="insert" useGeneratedKeys="true" keyProperty="newsCategoryId" keyColumn="category_id">
-        INSERT INTO f_news_category (name_zh, name_en, sort_order, is_published, create_by, remark)
-        VALUES (#{nameZh}, #{nameEn}, #{sortOrder}, #{isPublished}, #{createBy}, #{remark})
+        INSERT INTO f_news_category (site_code, name_zh, name_en, sort_order, is_published, create_by, remark)
+        VALUES (#{siteCode}, #{nameZh}, #{nameEn}, #{sortOrder}, #{isPublished}, #{createBy}, #{remark})
     </insert>
 
     <update id="update" parameterType="com.wuhansaga.server.entity.NewsCategory">
         UPDATE f_news_category
         <set>
+            <if test="siteCode != null">site_code = #{siteCode},</if>
             <if test="nameZh != null">name_zh = #{nameZh},</if>
             <if test="nameEn != null">name_en = #{nameEn},</if>
             <if test="sortOrder != null">sort_order = #{sortOrder},</if>
diff --git a/server/src/main/resources/mapper/NewsMapper.xml b/server/src/main/resources/mapper/NewsMapper.xml
index 065a5653..3927f612 100644
--- a/server/src/main/resources/mapper/NewsMapper.xml
+++ b/server/src/main/resources/mapper/NewsMapper.xml
@@ -5,6 +5,7 @@
     <resultMap id="newsResult" type="com.wuhansaga.server.entity.News">
         <id property="newsId" column="news_id"/>
         <result property="categoryId" column="category_id"/>
+        <result property="siteCode" column="site_code"/>
         <result property="titleZh" column="title_zh"/>
         <result property="titleEn" column="title_en"/>
         <result property="excerptZh" column="excerpt_zh"/>
@@ -12,11 +13,21 @@
         <result property="contentZh" column="content_zh"/>
         <result property="contentEn" column="content_en"/>
         <result property="coverImage" column="cover_image"/>
+        <result property="metaTitleZh" column="meta_title_zh"/>
+        <result property="metaTitleEn" column="meta_title_en"/>
+        <result property="metaDescriptionZh" column="meta_description_zh"/>
+        <result property="metaDescriptionEn" column="meta_description_en"/>
+        <result property="metaKeywords" column="meta_keywords"/>
         <result property="isFeatured" column="is_featured"/>
         <result property="isPublished" column="is_published"/>
         <result property="viewCount" column="view_count"/>
         <result property="sortOrder" column="sort_order"/>
+        <result property="createBy" column="create_by"/>
+        <result property="updateBy" column="update_by"/>
         <result property="createTime" column="create_time"/>
+        <result property="updateTime" column="update_time"/>
+        <result property="remark" column="remark"/>
+        <result property="delFlag" column="del_flag"/>
         <result property="categoryNameZh" column="category_name_zh"/>
         <result property="categoryNameEn" column="category_name_en"/>
     </resultMap>
@@ -26,8 +37,10 @@
         FROM f_news n
         LEFT JOIN f_news_category nc ON n.category_id = nc.category_id
         WHERE n.del_flag = 0
+        <if test="siteCode != null and siteCode != ''">AND n.site_code = #{siteCode}</if>
         <if test="categoryId != null">AND n.category_id = #{categoryId}</if>
         <if test="isFeatured != null">AND n.is_featured = #{isFeatured}</if>
+        <if test="isPublished != null">AND n.is_published = #{isPublished}</if>
         <if test="keyword != null and keyword != ''">
             AND (n.title_zh LIKE CONCAT('%',#{keyword},'%') OR n.title_en LIKE CONCAT('%',#{keyword},'%'))
         </if>
@@ -35,11 +48,14 @@
     </select>
 
     <select id="selectCount" resultType="long">
-        SELECT COUNT(*) FROM f_news WHERE del_flag = 0
-        <if test="categoryId != null">AND category_id = #{categoryId}</if>
-        <if test="isFeatured != null">AND is_featured = #{isFeatured}</if>
+        SELECT COUNT(*) FROM f_news n
+        WHERE n.del_flag = 0
+        <if test="siteCode != null and siteCode != ''">AND n.site_code = #{siteCode}</if>
+        <if test="categoryId != null">AND n.category_id = #{categoryId}</if>
+        <if test="isFeatured != null">AND n.is_featured = #{isFeatured}</if>
+        <if test="isPublished != null">AND n.is_published = #{isPublished}</if>
         <if test="keyword != null and keyword != ''">
-            AND (title_zh LIKE CONCAT('%',#{keyword},'%') OR title_en LIKE CONCAT('%',#{keyword},'%'))
+            AND (n.title_zh LIKE CONCAT('%',#{keyword},'%') OR n.title_en LIKE CONCAT('%',#{keyword},'%'))
         </if>
     </select>
 
@@ -48,6 +64,7 @@
         FROM f_news n
         LEFT JOIN f_news_category nc ON n.category_id = nc.category_id
         WHERE n.del_flag = 0 AND n.is_published = 1
+          AND n.site_code = #{siteCode}
         <if test="categoryId != null">AND n.category_id = #{categoryId}</if>
         <if test="isFeatured != null">AND n.is_featured = #{isFeatured}</if>
         ORDER BY n.sort_order ASC, n.create_time DESC
@@ -60,11 +77,19 @@
         WHERE n.news_id = #{id} AND n.del_flag = 0
     </select>
 
+    <select id="selectPublishedById" resultMap="newsResult">
+        SELECT n.*, nc.name_zh AS category_name_zh, nc.name_en AS category_name_en
+        FROM f_news n
+        LEFT JOIN f_news_category nc ON n.category_id = nc.category_id
+        WHERE n.news_id = #{id} AND n.del_flag = 0 AND n.is_published = 1
+          AND n.site_code = #{siteCode}
+    </select>
+
     <insert id="insert" useGeneratedKeys="true" keyProperty="newsId">
-        INSERT INTO f_news (category_id, title_zh, title_en, excerpt_zh, excerpt_en, content_zh, content_en,
+        INSERT INTO f_news (category_id, site_code, title_zh, title_en, excerpt_zh, excerpt_en, content_zh, content_en,
                             cover_image, meta_title_zh, meta_title_en, meta_description_zh, meta_description_en,
                             meta_keywords, is_featured, is_published, sort_order, create_by, remark)
-        VALUES (#{categoryId}, #{titleZh}, #{titleEn}, #{excerptZh}, #{excerptEn}, #{contentZh}, #{contentEn},
+        VALUES (#{categoryId}, #{siteCode}, #{titleZh}, #{titleEn}, #{excerptZh}, #{excerptEn}, #{contentZh}, #{contentEn},
                 #{coverImage}, #{metaTitleZh}, #{metaTitleEn}, #{metaDescriptionZh}, #{metaDescriptionEn},
                 #{metaKeywords}, #{isFeatured}, #{isPublished}, #{sortOrder}, #{createBy}, #{remark})
     </insert>
@@ -73,6 +98,7 @@
         UPDATE f_news
         <set>
             <if test="categoryId != null">category_id = #{categoryId},</if>
+            <if test="siteCode != null">site_code = #{siteCode},</if>
             <if test="titleZh != null">title_zh = #{titleZh},</if>
             <if test="titleEn != null">title_en = #{titleEn},</if>
             <if test="excerptZh != null">excerpt_zh = #{excerptZh},</if>
@@ -80,6 +106,11 @@
             <if test="contentZh != null">content_zh = #{contentZh},</if>
             <if test="contentEn != null">content_en = #{contentEn},</if>
             <if test="coverImage != null">cover_image = #{coverImage},</if>
+            <if test="metaTitleZh != null">meta_title_zh = #{metaTitleZh},</if>
+            <if test="metaTitleEn != null">meta_title_en = #{metaTitleEn},</if>
+            <if test="metaDescriptionZh != null">meta_description_zh = #{metaDescriptionZh},</if>
+            <if test="metaDescriptionEn != null">meta_description_en = #{metaDescriptionEn},</if>
+            <if test="metaKeywords != null">meta_keywords = #{metaKeywords},</if>
             <if test="isFeatured != null">is_featured = #{isFeatured},</if>
             <if test="isPublished != null">is_published = #{isPublished},</if>
             <if test="sortOrder != null">sort_order = #{sortOrder},</if>
diff --git a/server/src/main/resources/schema.sql b/server/src/main/resources/schema.sql
index cd9ab816..3dd85322 100644
--- a/server/src/main/resources/schema.sql
+++ b/server/src/main/resources/schema.sql
@@ -380,6 +380,7 @@ CREATE TABLE IF NOT EXISTS f_case_study (
 -- ================================================================
 CREATE TABLE IF NOT EXISTS f_news_category (
   category_id BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键',
+  site_code VARCHAR(32) NOT NULL DEFAULT 'wuhansaga' COMMENT '站点编码：小写英文短码，与 f_news.site_code 取值域一致',
   name_zh VARCHAR(100) NOT NULL COMMENT '分类名称（中文）',
   name_en VARCHAR(100) NOT NULL COMMENT '分类名称（英文）',
   sort_order INT NOT NULL DEFAULT 0 COMMENT '排序',
@@ -390,7 +391,8 @@ CREATE TABLE IF NOT EXISTS f_news_category (
   update_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
   remark VARCHAR(500) DEFAULT NULL COMMENT '备注',
   del_flag TINYINT(1) NOT NULL DEFAULT 0 COMMENT '删除标志：0正常 1删除',
-  PRIMARY KEY (category_id)
+  PRIMARY KEY (category_id),
+  KEY idx_f_news_category_site (site_code, del_flag, is_published, sort_order)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='新闻分类';
 
 -- ================================================================
@@ -399,6 +401,7 @@ CREATE TABLE IF NOT EXISTS f_news_category (
 CREATE TABLE IF NOT EXISTS f_news (
   news_id BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键',
   category_id BIGINT NOT NULL COMMENT '所属分类',
+  site_code VARCHAR(32) NOT NULL DEFAULT 'wuhansaga' COMMENT '站点编码：与分类 site_code 一致，用于多站点数据隔离',
   title_zh VARCHAR(200) NOT NULL COMMENT '标题（中文）',
   title_en VARCHAR(200) NOT NULL COMMENT '标题（英文）',
   excerpt_zh TEXT COMMENT '摘要（中文）',
@@ -422,6 +425,8 @@ CREATE TABLE IF NOT EXISTS f_news (
   remark VARCHAR(500) DEFAULT NULL COMMENT '备注',
   del_flag TINYINT(1) NOT NULL DEFAULT 0 COMMENT '删除标志：0正常 1删除',
   PRIMARY KEY (news_id),
+  KEY idx_f_news_site_list (site_code, del_flag, is_published, category_id),
+  KEY idx_f_news_site_time (site_code, del_flag, is_published, create_time),
   KEY idx_f_news_category (category_id),
   KEY idx_f_news_create_time (create_time)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='新闻文章';
diff --git a/server/target/classes/application.yml b/server/target/classes/application.yml
index c5ca9bbf..838b6190 100644
--- a/server/target/classes/application.yml
+++ b/server/target/classes/application.yml
@@ -60,3 +60,9 @@ upload:
   path: uploads/
   allowed-types: image/jpeg,image/png,image/gif,image/webp,image/svg+xml,video/mp4,video/webm
   max-size: 52428800
+
+# 新闻中心多站点：单部署实例默认站点；扩展编码时改 allowed-site-codes 与库内数据
+app:
+  portal:
+    site-code: wuhansaga
+    allowed-site-codes: wuhansaga,saga-secondary
diff --git a/server/target/classes/com/wuhansaga/server/WuhanSagaApplication.class b/server/target/classes/com/wuhansaga/server/WuhanSagaApplication.class
index a23e5826..67441d3d 100644
Binary files a/server/target/classes/com/wuhansaga/server/WuhanSagaApplication.class and b/server/target/classes/com/wuhansaga/server/WuhanSagaApplication.class differ
diff --git a/server/target/classes/com/wuhansaga/server/common/BizException.class b/server/target/classes/com/wuhansaga/server/common/BizException.class
index 1b546489..b5c17f4a 100644
Binary files a/server/target/classes/com/wuhansaga/server/common/BizException.class and b/server/target/classes/com/wuhansaga/server/common/BizException.class differ
diff --git a/server/target/classes/com/wuhansaga/server/common/PageQuery.class b/server/target/classes/com/wuhansaga/server/common/PageQuery.class
index 3d9324ca..63067bec 100644
Binary files a/server/target/classes/com/wuhansaga/server/common/PageQuery.class and b/server/target/classes/com/wuhansaga/server/common/PageQuery.class differ
diff --git a/server/target/classes/com/wuhansaga/server/common/PageResult.class b/server/target/classes/com/wuhansaga/server/common/PageResult.class
index a05ecffb..76bc18a9 100644
Binary files a/server/target/classes/com/wuhansaga/server/common/PageResult.class and b/server/target/classes/com/wuhansaga/server/common/PageResult.class differ
diff --git a/server/target/classes/com/wuhansaga/server/config/OpenApiConfig.class b/server/target/classes/com/wuhansaga/server/config/OpenApiConfig.class
index 265d7ff5..db9d4720 100644
Binary files a/server/target/classes/com/wuhansaga/server/config/OpenApiConfig.class and b/server/target/classes/com/wuhansaga/server/config/OpenApiConfig.class differ
diff --git a/server/target/classes/com/wuhansaga/server/config/PortalSiteProperties.class b/server/target/classes/com/wuhansaga/server/config/PortalSiteProperties.class
new file mode 100644
index 00000000..016eaee3
Binary files /dev/null and b/server/target/classes/com/wuhansaga/server/config/PortalSiteProperties.class differ
diff --git a/server/target/classes/com/wuhansaga/server/config/PortalSiteResolver.class b/server/target/classes/com/wuhansaga/server/config/PortalSiteResolver.class
new file mode 100644
index 00000000..c9129e37
Binary files /dev/null and b/server/target/classes/com/wuhansaga/server/config/PortalSiteResolver.class differ
diff --git a/server/target/classes/com/wuhansaga/server/config/RedisConfig.class b/server/target/classes/com/wuhansaga/server/config/RedisConfig.class
index a1fdbae5..d8ca2d0b 100644
Binary files a/server/target/classes/com/wuhansaga/server/config/RedisConfig.class and b/server/target/classes/com/wuhansaga/server/config/RedisConfig.class differ
diff --git a/server/target/classes/com/wuhansaga/server/config/SaTokenConfig.class b/server/target/classes/com/wuhansaga/server/config/SaTokenConfig.class
index b2432942..84f76de4 100644
Binary files a/server/target/classes/com/wuhansaga/server/config/SaTokenConfig.class and b/server/target/classes/com/wuhansaga/server/config/SaTokenConfig.class differ
diff --git a/server/target/classes/com/wuhansaga/server/config/WebMvcConfig.class b/server/target/classes/com/wuhansaga/server/config/WebMvcConfig.class
index 7ff84fef..765b61d7 100644
Binary files a/server/target/classes/com/wuhansaga/server/config/WebMvcConfig.class and b/server/target/classes/com/wuhansaga/server/config/WebMvcConfig.class differ
diff --git a/server/target/classes/com/wuhansaga/server/constant/SiteCodes.class b/server/target/classes/com/wuhansaga/server/constant/SiteCodes.class
new file mode 100644
index 00000000..1f331a17
Binary files /dev/null and b/server/target/classes/com/wuhansaga/server/constant/SiteCodes.class differ
diff --git a/server/target/classes/com/wuhansaga/server/controller/admin/AdminNewsController.class b/server/target/classes/com/wuhansaga/server/controller/admin/AdminNewsController.class
index 93bdf597..2ba8543e 100644
Binary files a/server/target/classes/com/wuhansaga/server/controller/admin/AdminNewsController.class and b/server/target/classes/com/wuhansaga/server/controller/admin/AdminNewsController.class differ
diff --git a/server/target/classes/com/wuhansaga/server/controller/admin/AdminProductLineController.class b/server/target/classes/com/wuhansaga/server/controller/admin/AdminProductLineController.class
index 4954035d..27b79356 100644
Binary files a/server/target/classes/com/wuhansaga/server/controller/admin/AdminProductLineController.class and b/server/target/classes/com/wuhansaga/server/controller/admin/AdminProductLineController.class differ
diff --git a/server/target/classes/com/wuhansaga/server/controller/portal/PortalNewsController.class b/server/target/classes/com/wuhansaga/server/controller/portal/PortalNewsController.class
index b95e686c..d2accee0 100644
Binary files a/server/target/classes/com/wuhansaga/server/controller/portal/PortalNewsController.class and b/server/target/classes/com/wuhansaga/server/controller/portal/PortalNewsController.class differ
diff --git a/server/target/classes/com/wuhansaga/server/controller/portal/PortalProductController.class b/server/target/classes/com/wuhansaga/server/controller/portal/PortalProductController.class
index c9a5f397..f3fe82e0 100644
Binary files a/server/target/classes/com/wuhansaga/server/controller/portal/PortalProductController.class and b/server/target/classes/com/wuhansaga/server/controller/portal/PortalProductController.class differ
diff --git a/server/target/classes/com/wuhansaga/server/entity/MediaLibrary.class b/server/target/classes/com/wuhansaga/server/entity/MediaLibrary.class
index 7ba4dc54..8fb2772e 100644
Binary files a/server/target/classes/com/wuhansaga/server/entity/MediaLibrary.class and b/server/target/classes/com/wuhansaga/server/entity/MediaLibrary.class differ
diff --git a/server/target/classes/com/wuhansaga/server/entity/News.class b/server/target/classes/com/wuhansaga/server/entity/News.class
index 65cc530f..af0abdcc 100644
Binary files a/server/target/classes/com/wuhansaga/server/entity/News.class and b/server/target/classes/com/wuhansaga/server/entity/News.class differ
diff --git a/server/target/classes/com/wuhansaga/server/entity/NewsCategory.class b/server/target/classes/com/wuhansaga/server/entity/NewsCategory.class
index 306a9ce7..00ee26b7 100644
Binary files a/server/target/classes/com/wuhansaga/server/entity/NewsCategory.class and b/server/target/classes/com/wuhansaga/server/entity/NewsCategory.class differ
diff --git a/server/target/classes/com/wuhansaga/server/entity/ProductCategory.class b/server/target/classes/com/wuhansaga/server/entity/ProductCategory.class
index 18f2692c..f7b39202 100644
Binary files a/server/target/classes/com/wuhansaga/server/entity/ProductCategory.class and b/server/target/classes/com/wuhansaga/server/entity/ProductCategory.class differ
diff --git a/server/target/classes/com/wuhansaga/server/entity/ProductLine.class b/server/target/classes/com/wuhansaga/server/entity/ProductLine.class
index 479065c3..b893108f 100644
Binary files a/server/target/classes/com/wuhansaga/server/entity/ProductLine.class and b/server/target/classes/com/wuhansaga/server/entity/ProductLine.class differ
diff --git a/server/target/classes/com/wuhansaga/server/entity/SingleEquipment.class b/server/target/classes/com/wuhansaga/server/entity/SingleEquipment.class
index 9214ad43..81f48732 100644
Binary files a/server/target/classes/com/wuhansaga/server/entity/SingleEquipment.class and b/server/target/classes/com/wuhansaga/server/entity/SingleEquipment.class differ
diff --git a/server/target/classes/com/wuhansaga/server/entity/SparePart.class b/server/target/classes/com/wuhansaga/server/entity/SparePart.class
index 3b163198..7e114c4a 100644
Binary files a/server/target/classes/com/wuhansaga/server/entity/SparePart.class and b/server/target/classes/com/wuhansaga/server/entity/SparePart.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/CaseCategoryMapper.class b/server/target/classes/com/wuhansaga/server/mapper/CaseCategoryMapper.class
index 05b10e80..a375f6a1 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/CaseCategoryMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/CaseCategoryMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/CompanyInfoMapper.class b/server/target/classes/com/wuhansaga/server/mapper/CompanyInfoMapper.class
index 56382dae..9dd0c256 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/CompanyInfoMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/CompanyInfoMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/ContactMapper.class b/server/target/classes/com/wuhansaga/server/mapper/ContactMapper.class
index 6a8c17bc..cd782075 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/ContactMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/ContactMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/CoreTechnologyMapper.class b/server/target/classes/com/wuhansaga/server/mapper/CoreTechnologyMapper.class
index 399f1061..6293b69a 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/CoreTechnologyMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/CoreTechnologyMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/NewsCategoryMapper.class b/server/target/classes/com/wuhansaga/server/mapper/NewsCategoryMapper.class
index 170b5f37..bf5b04ab 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/NewsCategoryMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/NewsCategoryMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/NewsMapper.class b/server/target/classes/com/wuhansaga/server/mapper/NewsMapper.class
index cc2884ed..e808518d 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/NewsMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/NewsMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/ProductCategoryMapper.class b/server/target/classes/com/wuhansaga/server/mapper/ProductCategoryMapper.class
index fa83f437..fad989a8 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/ProductCategoryMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/ProductCategoryMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/ProductLineEquipmentMapper.class b/server/target/classes/com/wuhansaga/server/mapper/ProductLineEquipmentMapper.class
index 73662ba3..83813a9c 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/ProductLineEquipmentMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/ProductLineEquipmentMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/mapper/SingleEquipmentMapper.class b/server/target/classes/com/wuhansaga/server/mapper/SingleEquipmentMapper.class
index d391a110..8a43999c 100644
Binary files a/server/target/classes/com/wuhansaga/server/mapper/SingleEquipmentMapper.class and b/server/target/classes/com/wuhansaga/server/mapper/SingleEquipmentMapper.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/AboutService.class b/server/target/classes/com/wuhansaga/server/service/AboutService.class
index 76b3d616..f3063c1f 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/AboutService.class and b/server/target/classes/com/wuhansaga/server/service/AboutService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/AuthService.class b/server/target/classes/com/wuhansaga/server/service/AuthService.class
index dda9d2c8..aaa6fcdc 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/AuthService.class and b/server/target/classes/com/wuhansaga/server/service/AuthService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/BannerService.class b/server/target/classes/com/wuhansaga/server/service/BannerService.class
index 08654da1..7eb3ebd5 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/BannerService.class and b/server/target/classes/com/wuhansaga/server/service/BannerService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/CaseCategoryService.class b/server/target/classes/com/wuhansaga/server/service/CaseCategoryService.class
index 6209f1d3..0c109064 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/CaseCategoryService.class and b/server/target/classes/com/wuhansaga/server/service/CaseCategoryService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/CaseStudyService.class b/server/target/classes/com/wuhansaga/server/service/CaseStudyService.class
index 8dc84efc..53293da4 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/CaseStudyService.class and b/server/target/classes/com/wuhansaga/server/service/CaseStudyService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/CompanyInfoService.class b/server/target/classes/com/wuhansaga/server/service/CompanyInfoService.class
index 733e32f7..172820d3 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/CompanyInfoService.class and b/server/target/classes/com/wuhansaga/server/service/CompanyInfoService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/CoreTechnologyService.class b/server/target/classes/com/wuhansaga/server/service/CoreTechnologyService.class
index 331799f5..8cf1fc99 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/CoreTechnologyService.class and b/server/target/classes/com/wuhansaga/server/service/CoreTechnologyService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/MediaLibraryService.class b/server/target/classes/com/wuhansaga/server/service/MediaLibraryService.class
index 25134934..c1a06642 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/MediaLibraryService.class and b/server/target/classes/com/wuhansaga/server/service/MediaLibraryService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/NewsCategoryService.class b/server/target/classes/com/wuhansaga/server/service/NewsCategoryService.class
index 479d115f..2931e821 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/NewsCategoryService.class and b/server/target/classes/com/wuhansaga/server/service/NewsCategoryService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/NewsService.class b/server/target/classes/com/wuhansaga/server/service/NewsService.class
index e4f78c25..b84ff8cb 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/NewsService.class and b/server/target/classes/com/wuhansaga/server/service/NewsService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/ProductCategoryService.class b/server/target/classes/com/wuhansaga/server/service/ProductCategoryService.class
index b313ecbd..527fbefc 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/ProductCategoryService.class and b/server/target/classes/com/wuhansaga/server/service/ProductCategoryService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/ProductLineService.class b/server/target/classes/com/wuhansaga/server/service/ProductLineService.class
index 6469f8ca..65e2b022 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/ProductLineService.class and b/server/target/classes/com/wuhansaga/server/service/ProductLineService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/SingleEquipmentService.class b/server/target/classes/com/wuhansaga/server/service/SingleEquipmentService.class
index 4b5a045e..e846500f 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/SingleEquipmentService.class and b/server/target/classes/com/wuhansaga/server/service/SingleEquipmentService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/SparePartService.class b/server/target/classes/com/wuhansaga/server/service/SparePartService.class
index 550a3872..b70caad1 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/SparePartService.class and b/server/target/classes/com/wuhansaga/server/service/SparePartService.class differ
diff --git a/server/target/classes/com/wuhansaga/server/service/WorkshopService.class b/server/target/classes/com/wuhansaga/server/service/WorkshopService.class
index d103977c..68244cf0 100644
Binary files a/server/target/classes/com/wuhansaga/server/service/WorkshopService.class and b/server/target/classes/com/wuhansaga/server/service/WorkshopService.class differ
diff --git a/server/target/classes/data.sql b/server/target/classes/data.sql
index 102a72f6..3bc6b3d6 100644
--- a/server/target/classes/data.sql
+++ b/server/target/classes/data.sql
@@ -60,26 +60,33 @@ INSERT INTO f_company_info (
 -- ================================================================
 -- 产品分类
 -- ================================================================
-INSERT INTO f_product_category (product_category_id, name_zh, name_en, parent_id, sort_order) VALUES
-  (1, '连续涂镀机组', 'Continuous Coating Lines', NULL, 10),
-  (2, '连续热处理机组', 'Continuous Heat Treatment Lines', NULL, 20),
-  (3, '表面处理机组', 'Surface Treatment Lines', NULL, 30),
-  (4, '后处理及辅机', 'Post-processing & Auxiliary', NULL, 40),
-  (5, '单体设备', 'Single Equipment', NULL, 50),
-  (6, '备品备件', 'Spare Parts', NULL, 60),
-  (11, '热镀锌/镀铝锌机组', 'Hot Dipped Galvanizing / Galvalume Line', 1, 11),
-  (12, '锌铝镁机组', 'Zinc Aluminum Magnesium (ZAM) Line', 1, 12),
-  (13, '彩涂机组', 'Color Coating Line (CCL)', 1, 13),
-  (21, '普碳钢连续退火线', 'Plain Carbon Steel Continuous Annealing Line', 2, 21),
-  (22, '冷轧退火镀锌两用机组', 'Annealing & Galvanizing Combo Line', 2, 22),
-  (23, '硅钢连续处理机组', 'Silicon Steel Processing Line', 2, 23),
-  (31, '碳钢酸洗机组', 'Carbon Steel Pickling Line', 3, 31),
-  (32, '不锈钢退火酸洗机组', 'Stainless Steel Annealing & Pickling Line', 3, 32),
-  (41, '拉矫/脱脂/重卷线', 'Tension Leveling, Degreasing, Re-coiling', 4, 41)
+INSERT INTO f_product_category (product_category_id, name_zh, name_en, module_type, parent_id, sort_order) VALUES
+  (1, '连续涂镀机组', 'Continuous Coating Lines', 'product_line', NULL, 10),
+  (2, '连续热处理机组', 'Continuous Heat Treatment Lines', 'product_line', NULL, 20),
+  (3, '表面处理机组', 'Surface Treatment Lines', 'product_line', NULL, 30),
+  (4, '后处理及辅机', 'Post-processing & Auxiliary', 'product_line', NULL, 40),
+  (5, '单体设备', 'Single Equipment', 'equipment', NULL, 50),
+  (6, '备品备件', 'Spare Parts', 'spare_part', NULL, 60),
+  (11, '热镀锌/镀铝锌机组', 'Hot Dipped Galvanizing / Galvalume Line', 'product_line', 1, 11),
+  (12, '锌铝镁机组', 'Zinc Aluminum Magnesium (ZAM) Line', 'product_line', 1, 12),
+  (13, '彩涂机组', 'Color Coating Line (CCL)', 'product_line', 1, 13),
+  (21, '普碳钢连续退火线', 'Plain Carbon Steel Continuous Annealing Line', 'product_line', 2, 21),
+  (22, '冷轧退火镀锌两用机组', 'Annealing & Galvanizing Combo Line', 'product_line', 2, 22),
+  (23, '硅钢连续处理机组', 'Silicon Steel Processing Line', 'product_line', 2, 23),
+  (31, '碳钢酸洗机组', 'Carbon Steel Pickling Line', 'product_line', 3, 31),
+  (32, '不锈钢退火酸洗机组', 'Stainless Steel Annealing & Pickling Line', 'product_line', 3, 32),
+  (41, '拉矫/脱脂/重卷线', 'Tension Leveling, Degreasing, Re-coiling', 'product_line', 4, 41),
+  (200, '卷取设备', 'Reeling & Coiling Equipment', 'equipment', 5, 200),
+  (201, '炉类设备', 'Furnace Equipment', 'equipment', 5, 201),
+  (202, '涂布与焊接设备', 'Coating & Welding Equipment', 'equipment', 5, 202),
+  (203, '破鳞设备', 'Scale Breaking Equipment', 'equipment', 5, 203),
+  (204, '拉矫矫直设备', 'Leveling & Straightening Equipment', 'equipment', 5, 204),
+  (205, '剪切修边设备', 'Shearing & Trimming Equipment', 'equipment', 5, 205)
 ON DUPLICATE KEY UPDATE 
-  name_zh = VALUES(name_zh), name_en = VALUES(name_en), parent_id = VALUES(parent_id), sort_order = VALUES(sort_order);
+  name_zh = VALUES(name_zh), name_en = VALUES(name_en), module_type = VALUES(module_type),
+  parent_id = VALUES(parent_id), sort_order = VALUES(sort_order);
 
-ALTER TABLE f_product_category AUTO_INCREMENT = 100;
+ALTER TABLE f_product_category AUTO_INCREMENT = 210;
 
 -- ================================================================
 -- 案例分类
@@ -99,13 +106,37 @@ ON DUPLICATE KEY UPDATE
 -- ================================================================
 -- 新闻分类
 -- ================================================================
-INSERT INTO f_news_category (name_zh, name_en, sort_order) VALUES
-  ('公司新闻', 'Company News', 10),
-  ('行业动态', 'Industry News', 20),
-  ('技术文章', 'Technical Articles', 30)
+INSERT INTO f_news_category (site_code, name_zh, name_en, sort_order) VALUES
+  ('wuhansaga', '公司新闻', 'Company News', 10),
+  ('wuhansaga', '行业动态', 'Industry News', 20),
+  ('wuhansaga', '技术文章', 'Technical Articles', 30)
 ON DUPLICATE KEY UPDATE 
+  site_code = VALUES(site_code),
   name_zh = VALUES(name_zh), name_en = VALUES(name_en), sort_order = VALUES(sort_order);
 
+-- ================================================================
+-- 新闻文章（示例；生产环境可替换为正式稿件）
+-- ================================================================
+INSERT INTO f_news (category_id, site_code, title_zh, title_en, excerpt_zh, excerpt_en, content_zh, content_en, is_featured, is_published, sort_order) VALUES
+  (1, 'wuhansaga', '武汉萨格官网更新上线', 'Wuhan Saga Website Refresh',
+   '集中展示连续板带处理产线、单体设备及工程案例。',
+   'Highlighting strip processing lines, equipment and engineering cases.',
+   '<p>武汉萨格工程技术有限公司官网已升级，客户可通过产品中心了解热镀锌、退火、酸洗及感应加热等成套装备与单体设备，并查阅成功案例与新闻资讯。</p>',
+   '<p>Wuhan Saga Engineering has refreshed its website for strip galvanizing, annealing, pickling, induction heating solutions, case studies and news.</p>',
+   1, 1, 10),
+  (2, 'wuhansaga', '板带处理装备市场观察', 'Strip Processing Equipment Market Notes',
+   '节能与智能化连续处理机组需求持续增长。',
+   'Growing demand for energy-efficient intelligent continuous lines.',
+   '<p>国内外钢铁及加工企业持续投资连续镀锌、退火与酸洗机组。武汉萨格团队在设计与改造项目中注重节能环保与自动化控制。</p>',
+   '<p>Steel and processing firms continue to invest in continuous galvanizing, annealing and pickling lines with emphasis on energy saving and automation.</p>',
+   0, 1, 20),
+  (3, 'wuhansaga', '感应加热在涂层干燥中的应用', 'Induction Heating in Coating Drying',
+   '非接触加热可提高涂层烘干效率并降低能耗。',
+   'Non-contact heating can improve drying efficiency and save energy.',
+   '<p>感应加热适用于涂层干燥等工艺环节，可与产线控制深度集成，实现分区温控与节能运行。</p>',
+   '<p>Induction heating suits coating drying processes and integrates with line control for zoned temperature and energy saving.</p>',
+   0, 1, 30);
+
 -- ================================================================
 -- 关于我们
 -- ================================================================
@@ -278,28 +309,69 @@ ON DUPLICATE KEY UPDATE
 -- ================================================================
 -- 单体设备
 -- ================================================================
-INSERT INTO f_single_equipment (category_id, name_zh, name_en, technical_highlights_zh, technical_highlights_en, sort_order) VALUES
-  (5, '感应加热系统', 'Induction Heating System', '焊缝退火、硅钢轧前加热、涂层干燥', 'Weld annealing, Si-steel preheat, coating drying', 10),
-  (5, '镀后冷却系统', 'Post-plating Cooling System', '喷气冷却、气雾冷却（BLADE喷嘴）', 'Jet and air-mist cooling (BLADE nozzles)', 20),
-  (5, '电磁驱渣器', 'Electromagnetic Slag Drive', '替代人工除渣，自动化锌锅', 'Automated zinc pot skimming', 30),
-  (5, '红外辐射炉', 'Infrared Radiation Furnace', '涂层干燥，非接触加热', 'Non-contact coating drying', 40),
-  (5, '氢气回收装置', 'Hydrogen Recovery Unit', '回收率>75%，2-3年回本', 'Recovery rate >75%, typical payback 2–3 years', 50),
-  (5, '合金化炉', 'Alloy Coating Furnace', '直接火焰加热（FLOX/MILD），NOx降50-70%', 'FLOX/MILD firing, NOx reduction 50-70%', 60),
-  (5, '燃烧系统改造', 'Combustion System Revamp', '双燃料切换（LPG/NG/COG）', 'Dual-fuel switching (LPG/NG/COG)', 70)
-ON DUPLICATE KEY UPDATE 
-  name_zh = VALUES(name_zh), name_en = VALUES(name_en), technical_highlights_zh = VALUES(technical_highlights_zh), 
+INSERT INTO f_single_equipment (category_id, name_zh, name_en, technical_highlights_zh, technical_highlights_en, sort_order, is_published) VALUES
+  (5, '感应加热系统', 'Induction Heating System', '焊缝退火、硅钢轧前加热、涂层干燥', 'Weld annealing, Si-steel preheat, coating drying', 10, 1),
+  (5, '镀后冷却系统', 'Post-plating Cooling System', '喷气冷却、气雾冷却（BLADE喷嘴）', 'Jet and air-mist cooling (BLADE nozzles)', 20, 1),
+  (5, '电磁驱渣器', 'Electromagnetic Slag Drive', '替代人工除渣，自动化锌锅', 'Automated zinc pot skimming', 30, 1),
+  (5, '红外辐射炉', 'Infrared Radiation Furnace', '涂层干燥，非接触加热', 'Non-contact coating drying', 40, 1),
+  (5, '氢气回收装置', 'Hydrogen Recovery Unit', '回收率>75%，2-3年回本', 'Recovery rate >75%, typical payback 2–3 years', 50, 1),
+  (5, '合金化炉', 'Alloy Coating Furnace', '直接火焰加热（FLOX/MILD），NOx降50-70%', 'FLOX/MILD firing, NOx reduction 50-70%', 60, 1),
+  (5, '燃烧系统改造', 'Combustion System Revamp', '双燃料切换（LPG/NG/COG）', 'Dual-fuel switching (LPG/NG/COG)', 70, 1),
+  (200, '开收卷机（机型一）', 'Payoff / Tension Reel (Type A)', '板材开卷、张力卷取与收卷', 'Strip payoff, tension reel and recoiling', 200, 1),
+  (200, '开收卷机（机型二）', 'Payoff / Tension Reel (Type B)', '重载卷取与张力控制', 'Heavy-duty recoiling with tension control', 210, 1),
+  (201, '立式炉', 'Vertical Furnace', '立式布置热处理炉', 'Vertically arranged heat-treatment furnace', 220, 1),
+  (201, '卧式炉', 'Horizontal Furnace', '卧式连续热处理炉', 'Horizontal continuous heat-treatment furnace', 230, 1),
+  (202, '焊机', 'Welder', '带钢闪光焊、搭接焊等', 'Flash welding, lap welding for strip joining', 240, 1),
+  (202, '立式涂机', 'Vertical Coating Machine', '立式辊涂、涂层施加', 'Vertical roll coater / film application', 250, 1),
+  (202, '卧式涂机', 'Horizontal Coating Machine', '水平涂覆与烘干前道工序', 'Horizontal coating application', 260, 1),
+  (203, '破鳞机（机型一）', 'Scale Breaker (Type I)', '热轧氧化铁皮破碎与疏松', 'Breaking and loosening hot-rolled scale', 270, 1),
+  (203, '破鳞机（机型二）', 'Scale Breaker (Type II)', '另一型式破鳞与延伸', 'Alternative scale breaking configuration', 280, 1),
+  (204, '拉矫机', 'Tension Leveler', '带钢拉伸弯曲矫直', 'Tension leveling / stretch leveling', 290, 1),
+  (204, '两弯两矫拉弯矫直机', 'Two-bend Two-straight Stretch-bend Leveler', '多辊拉弯矫直改善板形', 'Multi-roll stretch-bend leveling for strip shape', 300, 1),
+  (205, '圆盘剪', 'Side Trimmer', '两侧碎边裁剪宽度', 'Side trimming for strip width', 310, 1),
+  (205, '碎边剪', 'Edge Chop Shear', '碎边切断与收集', 'Chopping and handling of edge trim', 320, 1),
+  (205, '圆盘剪（双刀头）', 'Side Trimmer (Twin Knife Head)', '双刀头提高修边效率', 'Twin knife heads for trimming efficiency', 330, 1),
+  (205, '双刀头碎边圆盘剪', 'Twin-head Edge-chop Disc Shear', '碎边与圆盘剪组合结构', 'Combined edge chop and disc shear', 340, 1)
+ON DUPLICATE KEY UPDATE
+  name_zh = VALUES(name_zh), name_en = VALUES(name_en), technical_highlights_zh = VALUES(technical_highlights_zh),
   technical_highlights_en = VALUES(technical_highlights_en), sort_order = VALUES(sort_order);
 
 -- ================================================================
--- 备品备件
+-- 成套机组与单体设备关联（与 f_single_equipment 自增 ID 顺序一致，可后台调整）
 -- ================================================================
-INSERT INTO f_spare_part (category_id, name_zh, name_en, description_zh, description_en, sort_order) VALUES
-  (6, '辐射管（W/I/U型）', 'Radiant Tubes (W/I/U)', '工业炉用辐射管', 'Radiant tubes for industrial furnaces', 10),
-  (6, '换热器', 'Heat Exchangers', '翅片管换热器、RJC换热器等', 'Finned tube and RJC-type exchangers', 20),
-  (6, '炉辊与张力辊', 'Hearth & Tension Rolls', '炉辊、大炉辊、张力辊、转向辊等', 'Hearth rolls, tension rolls, deflector rolls', 30)
-ON DUPLICATE KEY UPDATE 
-  name_zh = VALUES(name_zh), name_en = VALUES(name_en), description_zh = VALUES(description_zh), 
-  description_en = VALUES(description_en), sort_order = VALUES(sort_order);
+INSERT INTO f_product_line_equipment (product_line_id, equipment_id, sort_order) VALUES
+  (1, 3, 10), (1, 6, 20), (1, 2, 30), (1, 5, 40), (1, 1, 50), (1, 7, 60),
+  (2, 2, 10), (2, 5, 20), (2, 6, 30), (2, 7, 40),
+  (3, 10, 10), (3, 11, 20), (3, 4, 30), (3, 17, 40),
+  (4, 10, 10), (4, 11, 20), (4, 8, 30), (4, 9, 40), (4, 2, 50), (4, 6, 60),
+  (5, 4, 10), (5, 1, 20), (5, 13, 30), (5, 14, 40),
+  (6, 1, 10), (6, 10, 20), (6, 11, 30), (6, 5, 40),
+  (7, 15, 10), (7, 16, 20), (7, 17, 30), (7, 19, 40),
+  (8, 10, 10), (8, 11, 20), (8, 12, 30),
+  (9, 17, 10), (9, 18, 20), (9, 19, 30), (9, 20, 40), (9, 8, 50)
+ON DUPLICATE KEY UPDATE sort_order = VALUES(sort_order);
+
+-- ================================================================
+-- 备品备件（产品目录单品，与官网图册一致；封面请在后台上传 cover_image）
+-- ================================================================
+INSERT INTO f_spare_part (category_id, name_zh, name_en, description_zh, description_en, sort_order, is_published) VALUES
+  (6, '翅片管换热器', 'Finned Tube Heat Exchanger', '备品备件', 'Spare parts', 10, 1),
+  (6, 'RJC 换热器', 'RJC Heat exchanger', '备品备件', 'Spare parts', 20, 1),
+  (6, 'W 型辐射管', 'W-radiant tube', '备品备件', 'Spare parts', 30, 1),
+  (6, 'I 型辐射管', 'I-type Radiant Tube', '备品备件', 'Spare parts', 40, 1),
+  (6, 'U 型辐射管', 'U-Radiant Tube', '备品备件', 'Spare parts', 50, 1),
+  (6, '滑块', 'Slide Block', '备品备件', 'Spare parts', 60, 1),
+  (6, '轴套衬套', 'Bush and Sleeve', '备品备件', 'Spare parts', 70, 1),
+  (6, '支臂', 'Support Arm', '备品备件', 'Spare parts', 80, 1),
+  (6, '炉辊', 'Hearth Roll', '备品备件', 'Spare parts', 90, 1),
+  (6, '大炉辊', 'Big Hearth Roll', '备品备件', 'Spare parts', 100, 1),
+  (6, '镀铬辊', 'Chromed Roll', '备品备件', 'Spare parts', 110, 1),
+  (6, '氯丁胶转向辊', 'Rubber Turning Roll', '备品备件', 'Spare parts', 120, 1),
+  (6, '聚氨酯辊', 'PU Roll', '备品备件', 'Spare parts', 130, 1),
+  (6, '汲料辊', 'Pick Up Roll', '备品备件', 'Spare parts', 140, 1),
+  (6, '托辊', 'Support Roll', '备品备件', 'Spare parts', 150, 1),
+  (6, '水淬辊', 'Water Quenching Roll', '备品备件', 'Spare parts', 160, 1),
+  (6, '张力辊', 'Bridle Roll', '备品备件', 'Spare parts', 170, 1);
 
 -- ================================================================
 -- 成功案例
@@ -321,4 +393,5 @@ ON DUPLICATE KEY UPDATE
 ALTER TABLE f_company_info AUTO_INCREMENT = 2;
 ALTER TABLE f_case_category AUTO_INCREMENT = 9;
 ALTER TABLE f_news_category AUTO_INCREMENT = 4;
+ALTER TABLE f_news AUTO_INCREMENT = 4;
 ALTER TABLE f_media_library AUTO_INCREMENT = 500;
\ No newline at end of file
diff --git a/server/target/classes/mapper/NewsCategoryMapper.xml b/server/target/classes/mapper/NewsCategoryMapper.xml
index 125430ff..57bb83bb 100644
--- a/server/target/classes/mapper/NewsCategoryMapper.xml
+++ b/server/target/classes/mapper/NewsCategoryMapper.xml
@@ -7,11 +7,15 @@
     </resultMap>
 
     <select id="selectAll" resultMap="newsCategoryResult">
-        SELECT * FROM f_news_category WHERE del_flag = 0 ORDER BY sort_order ASC
+        SELECT * FROM f_news_category WHERE del_flag = 0
+        <if test="siteCode != null and siteCode != ''">AND site_code = #{siteCode}</if>
+        ORDER BY sort_order ASC
     </select>
 
     <select id="selectPublished" resultMap="newsCategoryResult">
-        SELECT * FROM f_news_category WHERE del_flag = 0 AND is_published = 1 ORDER BY sort_order ASC
+        SELECT * FROM f_news_category WHERE del_flag = 0 AND is_published = 1
+        <if test="siteCode != null and siteCode != ''">AND site_code = #{siteCode}</if>
+        ORDER BY sort_order ASC
     </select>
 
     <select id="selectById" resultMap="newsCategoryResult">
@@ -19,13 +23,14 @@
     </select>
 
     <insert id="insert" useGeneratedKeys="true" keyProperty="newsCategoryId" keyColumn="category_id">
-        INSERT INTO f_news_category (name_zh, name_en, sort_order, is_published, create_by, remark)
-        VALUES (#{nameZh}, #{nameEn}, #{sortOrder}, #{isPublished}, #{createBy}, #{remark})
+        INSERT INTO f_news_category (site_code, name_zh, name_en, sort_order, is_published, create_by, remark)
+        VALUES (#{siteCode}, #{nameZh}, #{nameEn}, #{sortOrder}, #{isPublished}, #{createBy}, #{remark})
     </insert>
 
     <update id="update" parameterType="com.wuhansaga.server.entity.NewsCategory">
         UPDATE f_news_category
         <set>
+            <if test="siteCode != null">site_code = #{siteCode},</if>
             <if test="nameZh != null">name_zh = #{nameZh},</if>
             <if test="nameEn != null">name_en = #{nameEn},</if>
             <if test="sortOrder != null">sort_order = #{sortOrder},</if>
diff --git a/server/target/classes/mapper/NewsMapper.xml b/server/target/classes/mapper/NewsMapper.xml
index 065a5653..3927f612 100644
--- a/server/target/classes/mapper/NewsMapper.xml
+++ b/server/target/classes/mapper/NewsMapper.xml
@@ -5,6 +5,7 @@
     <resultMap id="newsResult" type="com.wuhansaga.server.entity.News">
         <id property="newsId" column="news_id"/>
         <result property="categoryId" column="category_id"/>
+        <result property="siteCode" column="site_code"/>
         <result property="titleZh" column="title_zh"/>
         <result property="titleEn" column="title_en"/>
         <result property="excerptZh" column="excerpt_zh"/>
@@ -12,11 +13,21 @@
         <result property="contentZh" column="content_zh"/>
         <result property="contentEn" column="content_en"/>
         <result property="coverImage" column="cover_image"/>
+        <result property="metaTitleZh" column="meta_title_zh"/>
+        <result property="metaTitleEn" column="meta_title_en"/>
+        <result property="metaDescriptionZh" column="meta_description_zh"/>
+        <result property="metaDescriptionEn" column="meta_description_en"/>
+        <result property="metaKeywords" column="meta_keywords"/>
         <result property="isFeatured" column="is_featured"/>
         <result property="isPublished" column="is_published"/>
         <result property="viewCount" column="view_count"/>
         <result property="sortOrder" column="sort_order"/>
+        <result property="createBy" column="create_by"/>
+        <result property="updateBy" column="update_by"/>
         <result property="createTime" column="create_time"/>
+        <result property="updateTime" column="update_time"/>
+        <result property="remark" column="remark"/>
+        <result property="delFlag" column="del_flag"/>
         <result property="categoryNameZh" column="category_name_zh"/>
         <result property="categoryNameEn" column="category_name_en"/>
     </resultMap>
@@ -26,8 +37,10 @@
         FROM f_news n
         LEFT JOIN f_news_category nc ON n.category_id = nc.category_id
         WHERE n.del_flag = 0
+        <if test="siteCode != null and siteCode != ''">AND n.site_code = #{siteCode}</if>
         <if test="categoryId != null">AND n.category_id = #{categoryId}</if>
         <if test="isFeatured != null">AND n.is_featured = #{isFeatured}</if>
+        <if test="isPublished != null">AND n.is_published = #{isPublished}</if>
         <if test="keyword != null and keyword != ''">
             AND (n.title_zh LIKE CONCAT('%',#{keyword},'%') OR n.title_en LIKE CONCAT('%',#{keyword},'%'))
         </if>
@@ -35,11 +48,14 @@
     </select>
 
     <select id="selectCount" resultType="long">
-        SELECT COUNT(*) FROM f_news WHERE del_flag = 0
-        <if test="categoryId != null">AND category_id = #{categoryId}</if>
-        <if test="isFeatured != null">AND is_featured = #{isFeatured}</if>
+        SELECT COUNT(*) FROM f_news n
+        WHERE n.del_flag = 0
+        <if test="siteCode != null and siteCode != ''">AND n.site_code = #{siteCode}</if>
+        <if test="categoryId != null">AND n.category_id = #{categoryId}</if>
+        <if test="isFeatured != null">AND n.is_featured = #{isFeatured}</if>
+        <if test="isPublished != null">AND n.is_published = #{isPublished}</if>
         <if test="keyword != null and keyword != ''">
-            AND (title_zh LIKE CONCAT('%',#{keyword},'%') OR title_en LIKE CONCAT('%',#{keyword},'%'))
+            AND (n.title_zh LIKE CONCAT('%',#{keyword},'%') OR n.title_en LIKE CONCAT('%',#{keyword},'%'))
         </if>
     </select>
 
@@ -48,6 +64,7 @@
         FROM f_news n
         LEFT JOIN f_news_category nc ON n.category_id = nc.category_id
         WHERE n.del_flag = 0 AND n.is_published = 1
+          AND n.site_code = #{siteCode}
         <if test="categoryId != null">AND n.category_id = #{categoryId}</if>
         <if test="isFeatured != null">AND n.is_featured = #{isFeatured}</if>
         ORDER BY n.sort_order ASC, n.create_time DESC
@@ -60,11 +77,19 @@
         WHERE n.news_id = #{id} AND n.del_flag = 0
     </select>
 
+    <select id="selectPublishedById" resultMap="newsResult">
+        SELECT n.*, nc.name_zh AS category_name_zh, nc.name_en AS category_name_en
+        FROM f_news n
+        LEFT JOIN f_news_category nc ON n.category_id = nc.category_id
+        WHERE n.news_id = #{id} AND n.del_flag = 0 AND n.is_published = 1
+          AND n.site_code = #{siteCode}
+    </select>
+
     <insert id="insert" useGeneratedKeys="true" keyProperty="newsId">
-        INSERT INTO f_news (category_id, title_zh, title_en, excerpt_zh, excerpt_en, content_zh, content_en,
+        INSERT INTO f_news (category_id, site_code, title_zh, title_en, excerpt_zh, excerpt_en, content_zh, content_en,
                             cover_image, meta_title_zh, meta_title_en, meta_description_zh, meta_description_en,
                             meta_keywords, is_featured, is_published, sort_order, create_by, remark)
-        VALUES (#{categoryId}, #{titleZh}, #{titleEn}, #{excerptZh}, #{excerptEn}, #{contentZh}, #{contentEn},
+        VALUES (#{categoryId}, #{siteCode}, #{titleZh}, #{titleEn}, #{excerptZh}, #{excerptEn}, #{contentZh}, #{contentEn},
                 #{coverImage}, #{metaTitleZh}, #{metaTitleEn}, #{metaDescriptionZh}, #{metaDescriptionEn},
                 #{metaKeywords}, #{isFeatured}, #{isPublished}, #{sortOrder}, #{createBy}, #{remark})
     </insert>
@@ -73,6 +98,7 @@
         UPDATE f_news
         <set>
             <if test="categoryId != null">category_id = #{categoryId},</if>
+            <if test="siteCode != null">site_code = #{siteCode},</if>
             <if test="titleZh != null">title_zh = #{titleZh},</if>
             <if test="titleEn != null">title_en = #{titleEn},</if>
             <if test="excerptZh != null">excerpt_zh = #{excerptZh},</if>
@@ -80,6 +106,11 @@
             <if test="contentZh != null">content_zh = #{contentZh},</if>
             <if test="contentEn != null">content_en = #{contentEn},</if>
             <if test="coverImage != null">cover_image = #{coverImage},</if>
+            <if test="metaTitleZh != null">meta_title_zh = #{metaTitleZh},</if>
+            <if test="metaTitleEn != null">meta_title_en = #{metaTitleEn},</if>
+            <if test="metaDescriptionZh != null">meta_description_zh = #{metaDescriptionZh},</if>
+            <if test="metaDescriptionEn != null">meta_description_en = #{metaDescriptionEn},</if>
+            <if test="metaKeywords != null">meta_keywords = #{metaKeywords},</if>
             <if test="isFeatured != null">is_featured = #{isFeatured},</if>
             <if test="isPublished != null">is_published = #{isPublished},</if>
             <if test="sortOrder != null">sort_order = #{sortOrder},</if>
diff --git a/server/target/classes/schema.sql b/server/target/classes/schema.sql
index c13244ce..3dd85322 100644
--- a/server/target/classes/schema.sql
+++ b/server/target/classes/schema.sql
@@ -195,6 +195,7 @@ CREATE TABLE IF NOT EXISTS f_product_category (
   product_category_id BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键',
   name_zh VARCHAR(100) NOT NULL COMMENT '分类名称（中文）',
   name_en VARCHAR(100) NOT NULL COMMENT '分类名称（英文）',
+  module_type VARCHAR(20) NOT NULL DEFAULT 'product_line' COMMENT '模块类型 product_line/equipment/spare_part',
   parent_id BIGINT NULL COMMENT '父分类ID',
   icon_class VARCHAR(100) COMMENT '图标类名',
   sort_order INT NOT NULL DEFAULT 0 COMMENT '排序',
@@ -280,6 +281,19 @@ CREATE TABLE IF NOT EXISTS f_single_equipment (
   KEY idx_f_single_equipment_category (category_id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='单体设备';
 
+-- ================================================================
+-- 成套机组与单体设备关联表（多对多）
+-- ================================================================
+CREATE TABLE IF NOT EXISTS f_product_line_equipment (
+  product_line_equipment_id BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键',
+  product_line_id BIGINT NOT NULL COMMENT '成套机组ID',
+  equipment_id BIGINT NOT NULL COMMENT '单体设备ID（f_single_equipment）',
+  sort_order INT NOT NULL DEFAULT 0 COMMENT '排序',
+  PRIMARY KEY (product_line_equipment_id),
+  UNIQUE KEY uk_f_ple_line_equipment (product_line_id, equipment_id),
+  KEY idx_f_ple_equipment (equipment_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='成套机组关联单体设备';
+
 -- ================================================================
 -- 备品备件表
 -- ================================================================
@@ -366,6 +380,7 @@ CREATE TABLE IF NOT EXISTS f_case_study (
 -- ================================================================
 CREATE TABLE IF NOT EXISTS f_news_category (
   category_id BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键',
+  site_code VARCHAR(32) NOT NULL DEFAULT 'wuhansaga' COMMENT '站点编码：小写英文短码，与 f_news.site_code 取值域一致',
   name_zh VARCHAR(100) NOT NULL COMMENT '分类名称（中文）',
   name_en VARCHAR(100) NOT NULL COMMENT '分类名称（英文）',
   sort_order INT NOT NULL DEFAULT 0 COMMENT '排序',
@@ -376,7 +391,8 @@ CREATE TABLE IF NOT EXISTS f_news_category (
   update_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
   remark VARCHAR(500) DEFAULT NULL COMMENT '备注',
   del_flag TINYINT(1) NOT NULL DEFAULT 0 COMMENT '删除标志：0正常 1删除',
-  PRIMARY KEY (category_id)
+  PRIMARY KEY (category_id),
+  KEY idx_f_news_category_site (site_code, del_flag, is_published, sort_order)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='新闻分类';
 
 -- ================================================================
@@ -385,6 +401,7 @@ CREATE TABLE IF NOT EXISTS f_news_category (
 CREATE TABLE IF NOT EXISTS f_news (
   news_id BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键',
   category_id BIGINT NOT NULL COMMENT '所属分类',
+  site_code VARCHAR(32) NOT NULL DEFAULT 'wuhansaga' COMMENT '站点编码：与分类 site_code 一致，用于多站点数据隔离',
   title_zh VARCHAR(200) NOT NULL COMMENT '标题（中文）',
   title_en VARCHAR(200) NOT NULL COMMENT '标题（英文）',
   excerpt_zh TEXT COMMENT '摘要（中文）',
@@ -408,6 +425,8 @@ CREATE TABLE IF NOT EXISTS f_news (
   remark VARCHAR(500) DEFAULT NULL COMMENT '备注',
   del_flag TINYINT(1) NOT NULL DEFAULT 0 COMMENT '删除标志：0正常 1删除',
   PRIMARY KEY (news_id),
+  KEY idx_f_news_site_list (site_code, del_flag, is_published, category_id),
+  KEY idx_f_news_site_time (site_code, del_flag, is_published, create_time),
   KEY idx_f_news_category (category_id),
   KEY idx_f_news_create_time (create_time)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='新闻文章';
@@ -534,6 +553,14 @@ ALTER TABLE f_single_equipment
     FOREIGN KEY (category_id) REFERENCES f_product_category (product_category_id)
     ON DELETE CASCADE ON UPDATE CASCADE;
 
+ALTER TABLE f_product_line_equipment
+  ADD CONSTRAINT fk_f_ple_product_line
+    FOREIGN KEY (product_line_id) REFERENCES f_product_line (product_line_id)
+    ON DELETE CASCADE ON UPDATE CASCADE,
+  ADD CONSTRAINT fk_f_ple_single_equipment
+    FOREIGN KEY (equipment_id) REFERENCES f_single_equipment (single_equipment_id)
+    ON DELETE CASCADE ON UPDATE CASCADE;
+
 ALTER TABLE f_spare_part
   ADD CONSTRAINT fk_f_spare_part_category
     FOREIGN KEY (category_id) REFERENCES f_product_category (product_category_id)
diff --git a/server/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/server/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
index 913d31a4..bfd4da2c 100644
--- a/server/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
+++ b/server/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
@@ -2,6 +2,7 @@ com\wuhansaga\server\entity\CaseStudy.class
 com\wuhansaga\server\WuhanSagaApplication.class
 com\wuhansaga\server\entity\CompanyInfo.class
 com\wuhansaga\server\controller\portal\PortalAboutController.class
+com\wuhansaga\server\constant\SiteCodes.class
 com\wuhansaga\server\mapper\SingleEquipmentMapper.class
 com\wuhansaga\server\mapper\ProductCategoryMapper.class
 com\wuhansaga\server\service\WorkshopService.class
@@ -33,6 +34,7 @@ com\wuhansaga\server\common\GlobalExceptionHandler.class
 com\wuhansaga\server\mapper\NewsCategoryMapper.class
 com\wuhansaga\server\controller\admin\AdminMediaController.class
 com\wuhansaga\server\mapper\ProductMediaMapper.class
+com\wuhansaga\server\config\PortalSiteResolver.class
 com\wuhansaga\server\service\CaseCategoryService.class
 com\wuhansaga\server\service\ProductLineService.class
 com\wuhansaga\server\service\SingleEquipmentService.class
@@ -65,6 +67,7 @@ com\wuhansaga\server\service\SparePartService.class
 com\wuhansaga\server\mapper\CoreTechnologyMapper.class
 com\wuhansaga\server\mapper\ProductLineMapper.class
 com\wuhansaga\server\controller\admin\AdminNewsController.class
+com\wuhansaga\server\config\PortalSiteProperties.class
 com\wuhansaga\server\controller\admin\AdminSparePartController.class
 com\wuhansaga\server\service\NewsService.class
 com\wuhansaga\server\controller\admin\AdminCoreTechnologyController.class
diff --git a/server/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/server/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
index 9bc2abb8..db7fbce4 100644
--- a/server/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
+++ b/server/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
@@ -4,9 +4,12 @@ D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\common\PageResult.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\common\R.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\config\OpenApiConfig.java
+D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\config\PortalSiteProperties.java
+D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\config\PortalSiteResolver.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\config\RedisConfig.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\config\SaTokenConfig.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\config\WebMvcConfig.java
+D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\constant\SiteCodes.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\controller\admin\AdminAboutController.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\controller\admin\AdminAuthController.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\controller\admin\AdminBannerController.java
@@ -58,6 +61,7 @@ D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\mapper\NewsCategoryMapper.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\mapper\NewsMapper.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\mapper\ProductCategoryMapper.java
+D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\mapper\ProductLineEquipmentMapper.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\mapper\ProductLineMapper.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\mapper\ProductMediaMapper.java
 D:\DeXun_workspace\projects\wuhan-saga-official-website\server\src\main\java\com\wuhansaga\server\mapper\SingleEquipmentMapper.java