diff --git a/admin/arco-design-pro-vite/src/views/safety/platform-config/index.vue b/admin/arco-design-pro-vite/src/views/safety/platform-config/index.vue
index 8cc5d07..34448ba 100644
--- a/admin/arco-design-pro-vite/src/views/safety/platform-config/index.vue
+++ b/admin/arco-design-pro-vite/src/views/safety/platform-config/index.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="container">
     <Breadcrumb :items="['menu.safety', 'menu.safety.platformConfig']" />
-    <a-card class="general-card" :title="'平台客服与官方指引/协议运营配置'">
+    <a-card class="general-card" :title="'平台运营与内容指引配置中心'">
       <template #extra>
         <a-button type="primary" :loading="loading" @click="fetchConfigs">
           <template #icon><icon-refresh /></template>
@@ -11,7 +11,7 @@
 
       <a-tabs default-active-key="customer_service" type="rounded">
         <!-- Tab 1: 官方客服配置 -->
-        <a-tab-pane key="customer_service" title="官方客服与热线配置">
+        <a-tab-pane key="customer_service" title="官方客服与热线">
           <div class="tab-pane-content">
             <a-alert type="info" style="margin-bottom: 20px">
               在此配置小程序个人中心“官方在线客服”弹层的联系电话与专属微信号，支持即时保存生效。
@@ -53,7 +53,7 @@
         </a-tab-pane>
 
         <!-- Tab 2: 官方安全履约公告 -->
-        <a-tab-pane key="safety_notice" title="安全履约公告指引">
+        <a-tab-pane key="safety_notice" title="履约安全公告">
           <div class="tab-pane-content">
             <a-alert type="warning" style="margin-bottom: 20px">
               在此配置小程序个人中心“平台消息与通知”弹层的履约安全指引与风险防范须知。
@@ -87,7 +87,7 @@
         </a-tab-pane>
 
         <!-- Tab 3: 用户服务协议与规范 -->
-        <a-tab-pane key="platform_protocol" title="平台规范与服务协议">
+        <a-tab-pane key="platform_protocol" title="平台规范协议">
           <div class="tab-pane-content">
             <a-alert type="success" style="margin-bottom: 20px">
               在此配置“平台规范与服务协议”弹层的协议条款与合规内容，严格遵循微信内容安全风控标准。
@@ -122,6 +122,123 @@
             </a-form>
           </div>
         </a-tab-pane>
+
+        <!-- Tab 4: 友圈热门话题与社区置顶公告 (P4) -->
+        <a-tab-pane key="community_config" title="友圈话题与头条公告">
+          <div class="tab-pane-content">
+            <a-alert type="info" style="margin-bottom: 20px">
+              在此管理友圈广场顶部头条横幅公告，以及移动端发布动态时的推荐热门话题库（支持HOT高亮）。
+            </a-alert>
+
+            <!-- 友圈置顶公告 -->
+            <a-card title="友圈顶部置顶头条公告" :bordered="false" style="margin-bottom: 24px; background: var(--color-fill-2)">
+              <a-form :model="commNoticeForm" layout="vertical" style="max-width: 750px">
+                <a-form-item label="头条公告标题">
+                  <a-input v-model="commNoticeForm.valueJson.title" placeholder="如：友圈同城互动与公约置顶" />
+                </a-form-item>
+                <a-form-item label="活动角标/标签">
+                  <a-input v-model="commNoticeForm.valueJson.tag" placeholder="如：置顶推荐 / 官方公告" />
+                </a-form-item>
+                <a-form-item label="公告详情内容">
+                  <a-textarea v-model="commNoticeForm.valueJson.content" placeholder="输入公告内容" :auto-size="{ minRows: 3, maxRows: 6 }" />
+                </a-form-item>
+                <a-form-item label="启用横幅置顶展示">
+                  <a-switch :checked-value="1" :unchecked-value="0" v-model="commNoticeForm.status" />
+                </a-form-item>
+                <a-form-item>
+                  <a-button type="primary" :loading="saving" @click="saveConfig('community_notice', commNoticeForm)">
+                    保存头条公告
+                  </a-button>
+                </a-form-item>
+              </a-form>
+            </a-card>
+
+            <!-- 热门话题列表 -->
+            <a-card title="热门推荐话题库 (移动端发帖即选)" :bordered="false" style="background: var(--color-fill-2)">
+              <template #extra>
+                <a-button type="outline" size="small" @click="addTopicItem">
+                  <template #icon><icon-plus /></template>
+                  新增话题
+                </a-button>
+              </template>
+
+              <a-table :data="topicsList" :pagination="false" row-key="id">
+                <template #columns>
+                  <a-table-column title="话题标签" :width="200">
+                    <template #cell="{ record }">
+                      <a-input v-model="record.name" placeholder="话题名称如: 三里屯探店" />
+                    </template>
+                  </a-table-column>
+                  <a-table-column title="HOT高亮" :width="120" align="center">
+                    <template #cell="{ record }">
+                      <a-switch v-model="record.hot" />
+                    </template>
+                  </a-table-column>
+                  <a-table-column title="讨论热度基数" :width="160">
+                    <template #cell="{ record }">
+                      <a-input-number v-model="record.postsCount" :min="0" />
+                    </template>
+                  </a-table-column>
+                  <a-table-column title="操作" :width="100" align="center">
+                    <template #cell="{ rowIndex }">
+                      <a-button type="text" status="danger" size="small" @click="removeTopicItem(rowIndex)">
+                        删除
+                      </a-button>
+                    </template>
+                  </a-table-column>
+                </template>
+              </a-table>
+
+              <div style="margin-top: 16px">
+                <a-button type="primary" :loading="saving" @click="saveTopicsConfig">
+                  保存热门话题库
+                </a-button>
+              </div>
+            </a-card>
+          </div>
+        </a-tab-pane>
+
+        <!-- Tab 5: 帮助中心与常见问题 FAQ (P5) -->
+        <a-tab-pane key="faq_config" title="帮助中心与常见问题">
+          <div class="tab-pane-content">
+            <a-alert type="success" style="margin-bottom: 20px">
+              在此维护小程序【常见问题与帮助中心】问答列表，解决买家组局履约、核销码流程、资金退款等高频疑惑。
+            </a-alert>
+
+            <a-card title="常见问题 FAQ 问答列表" :bordered="false" style="background: var(--color-fill-2)">
+              <template #extra>
+                <a-button type="outline" size="small" @click="addFaqItem">
+                  <template #icon><icon-plus /></template>
+                  新增问答
+                </a-button>
+              </template>
+
+              <div v-for="(item, idx) in faqList" :key="item.id || idx" style="margin-bottom: 16px; padding: 16px; background: var(--color-bg-2); border-radius: 6px;">
+                <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;">
+                  <a-space>
+                    <a-tag color="blue">问答 #{{ idx + 1 }}</a-tag>
+                    <a-input v-model="item.category" placeholder="分类如: 新手预约/资金退款" style="width: 180px;" />
+                  </a-space>
+                  <a-button type="text" status="danger" size="small" @click="removeFaqItem(idx)">删除问答</a-button>
+                </div>
+                <a-form layout="vertical">
+                  <a-form-item label="问题 (Title)">
+                    <a-input v-model="item.question" placeholder="如：什么是4位纯数字核销码？" />
+                  </a-form-item>
+                  <a-form-item label="回答解答 (Answer)">
+                    <a-textarea v-model="item.answer" placeholder="输入权威解答内容" :auto-size="{ minRows: 2, maxRows: 5 }" />
+                  </a-form-item>
+                </a-form>
+              </div>
+
+              <div style="margin-top: 16px">
+                <a-button type="primary" :loading="saving" @click="saveFaqConfig">
+                  保存帮助中心 FAQ
+                </a-button>
+              </div>
+            </a-card>
+          </div>
+        </a-tab-pane>
       </a-tabs>
     </a-card>
   </div>
@@ -175,6 +292,50 @@ const protoForm = reactive({
   }
 });
 
+// P4 友圈配置
+const commNoticeForm = reactive({
+  name: '友圈社区置顶头条公告',
+  description: '友圈广场顶部置顶横幅公告与社区公约',
+  status: 1,
+  valueJson: {
+    title: '友圈同城互动与公约置顶',
+    content: '欢迎来到同城搭子友圈！文明交友，发布真实组局诉求；平台全天候对动态与评论实施微信官方内容安全过滤，严禁广告引流及私下交易。',
+    tag: '置顶推荐',
+    showInBanner: true
+  }
+});
+
+const topicsList = ref<any[]>([]);
+
+const addTopicItem = () => {
+  topicsList.value.push({
+    id: `top_${Date.now()}`,
+    name: '新同城话题',
+    hot: false,
+    postsCount: 100
+  });
+};
+
+const removeTopicItem = (index: number) => {
+  topicsList.value.splice(index, 1);
+};
+
+// P5 帮助中心 FAQ
+const faqList = ref<any[]>([]);
+
+const addFaqItem = () => {
+  faqList.value.push({
+    id: `faq_${Date.now()}`,
+    category: '新手预约与组局',
+    question: '新常见问题',
+    answer: '在此输入权威官方解答...'
+  });
+};
+
+const removeFaqItem = (index: number) => {
+  faqList.value.splice(index, 1);
+};
+
 const fetchConfigs = async () => {
   loading.value = true;
   try {
@@ -199,6 +360,15 @@ const fetchConfigs = async () => {
           protoForm.description = item.description;
           protoForm.status = item.status;
           protoForm.valueJson = { ...protoForm.valueJson, ...(item.valueJson || {}) };
+        } else if (item.configKey === 'community_notice') {
+          commNoticeForm.name = item.name;
+          commNoticeForm.description = item.description;
+          commNoticeForm.status = item.status;
+          commNoticeForm.valueJson = { ...commNoticeForm.valueJson, ...(item.valueJson || {}) };
+        } else if (item.configKey === 'community_topics') {
+          topicsList.value = Array.isArray(item.valueJson) ? item.valueJson : [];
+        } else if (item.configKey === 'faq_list') {
+          faqList.value = Array.isArray(item.valueJson) ? item.valueJson : [];
         }
       });
     }
@@ -241,6 +411,24 @@ const saveNoticeConfig = () => {
   saveConfig('safety_notice', noticeForm);
 };
 
+const saveTopicsConfig = () => {
+  saveConfig('community_topics', {
+    name: '友圈热门推荐话题库',
+    description: '友圈广场发帖推荐话题与热门标签',
+    status: 1,
+    valueJson: topicsList.value
+  });
+};
+
+const saveFaqConfig = () => {
+  saveConfig('faq_list', {
+    name: '帮助中心与常见问题FAQ',
+    description: '小程序端帮助中心常见问答与指引',
+    status: 1,
+    valueJson: faqList.value
+  });
+};
+
 onMounted(() => {
   fetchConfigs();
 });
diff --git a/pwuniapp/pages/community/index.vue b/pwuniapp/pages/community/index.vue
index 8d863c8..7c69b00 100644
--- a/pwuniapp/pages/community/index.vue
+++ b/pwuniapp/pages/community/index.vue
@@ -21,6 +21,12 @@
         </view>
       </view>
 
+      <!-- 友圈置顶头条公告 (根据后台配置动态展示) -->
+      <view class="community-notice-bar" v-if="communityNotice && communityNotice.title">
+        <view class="notice-badge">{{ communityNotice.tag || '置顶公告' }}</view>
+        <text class="notice-title-text">{{ communityNotice.title }}：{{ communityNotice.content }}</text>
+      </view>
+
       <!-- 分类筛选栏 (高能矢量Tab标签与标准HOT角标) -->
       <view class="feed-tabs-wrap">
         <scroll-view class="feed-scroll" scroll-x :show-scrollbar="false">
@@ -299,11 +305,20 @@ import SkeletonScreen from '@/components/SkeletonScreen.vue';
 import { ICONS } from '@/common/icons.js';
 import { getCurrentThemeKey, applyThemeToNativeUI } from '@/common/theme.js';
 import { getNavBarInfo } from '@/common/nav.js';
-import { getPosts, createPost, likePost, getPostComments, addPostComment, applyPostParty, uploadImage } from '@/common/api.js';
+import { getPosts, createPost, likePost, getPostComments, addPostComment, applyPostParty, uploadImage, getPlatformConfigs } from '@/common/api.js';
 
 const isLoading = ref(true);
 const currentThemeKey = ref(getCurrentThemeKey());
 const navInfo = ref(getNavBarInfo());
+const communityNotice = ref(null);
+const availableTopics = ref([
+  '三里屯探店',
+  '铜锅涮肉AA',
+  '国服上分车队',
+  '饭搭子招募',
+  '工体纯K麦霸',
+  '同城搭子招募'
+]);
 
 const navStyle = computed(() => {
   return {
@@ -334,6 +349,7 @@ onMounted(() => {
   applyThemeToNativeUI(currentThemeKey.value);
   uni.$on('theme-change', onThemeChanged);
   loadInitialCommunity();
+  loadPlatformCommunityConfigs();
 });
 
 onShow(() => {
@@ -342,6 +358,7 @@ onShow(() => {
   applyThemeToNativeUI(currentThemeKey.value);
   uni.hideTabBar({ animation: false, fail: () => {} });
   loadRemotePosts();
+  loadPlatformCommunityConfigs();
 });
 
 onUnmounted(() => {
@@ -359,6 +376,22 @@ const loadRemotePosts = async () => {
   }
 };
 
+const loadPlatformCommunityConfigs = async () => {
+  try {
+    const configs = await getPlatformConfigs();
+    if (configs && typeof configs === 'object') {
+      if (configs.community_notice && configs.community_notice.title) {
+        communityNotice.value = configs.community_notice;
+      }
+      if (Array.isArray(configs.community_topics) && configs.community_topics.length > 0) {
+        availableTopics.value = configs.community_topics.map((t) => t.name || t);
+      }
+    }
+  } catch (e) {
+    console.warn('[Community] 获取平台话题公告异常降级:', e);
+  }
+};
+
 
 const feedTabs = ref([
   { key: 'all', name: '全部推荐', icon: ICONS.gameAll, hot: false },
@@ -588,15 +621,6 @@ const publishCategories = [
   { key: 'highlight', name: '生活随笔' }
 ];
 
-const availableTopics = [
-  '三里屯探店',
-  '铜锅涮肉AA',
-  '王者上分',
-  '饭搭子招募',
-  'KTV麦霸',
-  '周末微醺'
-];
-
 const newPostForm = ref({
   category: 'partner',
   content: '',
@@ -865,6 +889,36 @@ const submitPublishPost = async () => {
     }
   }
 
+  .community-notice-bar {
+    display: flex;
+    align-items: center;
+    background: rgba(99, 102, 241, 0.12);
+    border: 1px solid rgba(99, 102, 241, 0.3);
+    border-radius: 12rpx;
+    padding: 12rpx 20rpx;
+    margin-bottom: 20rpx;
+    gap: 12rpx;
+
+    .notice-badge {
+      font-size: 20rpx;
+      font-weight: 700;
+      color: #FFFFFF;
+      background: linear-gradient(135deg, #F43F5E, #FB7185);
+      padding: 2rpx 12rpx;
+      border-radius: 6rpx;
+      flex-shrink: 0;
+    }
+
+    .notice-title-text {
+      font-size: 22rpx;
+      color: #CBD5E1;
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      flex: 1;
+    }
+  }
+
   .feed-tabs-wrap {
     margin-bottom: 24rpx;
     width: 100%;
diff --git a/pwuniapp/pages/user/index.vue b/pwuniapp/pages/user/index.vue
index 9a55447..1cf5dd8 100644
--- a/pwuniapp/pages/user/index.vue
+++ b/pwuniapp/pages/user/index.vue
@@ -129,6 +129,11 @@
         <text class="row-label">平台消息与通知</text>
         <image class="row-arrow-svg" :src="ICONS.chevronRight" mode="aspectFit" />
       </view>
+      <view class="list-row btn-active" @click="openFaq">
+        <image class="row-svg" :src="ICONS.messageSquare" mode="aspectFit" />
+        <text class="row-label">帮助中心与常见问题</text>
+        <image class="row-arrow-svg" :src="ICONS.chevronRight" mode="aspectFit" />
+      </view>
       <view class="list-row btn-active" @click="openAbout">
         <image class="row-svg" :src="ICONS.shield" mode="aspectFit" />
         <text class="row-label">平台规范与服务协议</text>
@@ -674,6 +679,34 @@ const openNotice = () => {
   });
 };
 
+const openFaq = () => {
+  const list = platformConfigs.value.faq_list || [];
+  if (Array.isArray(list) && list.length > 0) {
+    const questions = list.map((item, idx) => `${idx + 1}. ${item.question}`);
+    uni.showActionSheet({
+      itemList: questions,
+      success: (res) => {
+        const item = list[res.tapIndex];
+        if (item) {
+          uni.showModal({
+            title: item.question,
+            content: `【${item.category || '常见问题'}】\n${item.answer}`,
+            showCancel: false,
+            confirmText: '我知道了',
+            confirmColor: '#6366F1'
+          });
+        }
+      }
+    });
+  } else {
+    uni.showModal({
+      title: '帮助中心与常见问题',
+      content: '1. 什么是4位核销码？\n到达活动现场后出示给陪伴师或房主签到核销，保障真实履约。\n2. 如何申请退款？\n在未接单或未核销前可随时全额退款，或发起争议仲裁由官方判定。',
+      showCancel: false
+    });
+  }
+};
+
 const openAbout = () => {
   const proto = platformConfigs.value.platform_protocol || {};
   if (privacyModalRef.value && privacyModalRef.value.show) {
diff --git a/server/src/db/mysql.ts b/server/src/db/mysql.ts
index 6d77d59..d4b8eaa 100644
--- a/server/src/db/mysql.ts
+++ b/server/src/db/mysql.ts
@@ -669,12 +669,58 @@ async function seedInitialDataIfEmpty(conn: any): Promise<void> {
       content: '1. 账号使用规范：用户注册与使用陪玩服务须符合国家法律法规，严禁利用平台从事涉黄、赌博、欺诈等违规行为。\n2. 资金与交易保障：平台提供全额担保交易，订单完成前款项由官方账户托管，核销确认后自动结算至大神钱包。\n3. 争议与售后：若遇服务不符或搭子违约，可随时提交争议仲裁由运营平台人工介入裁决。'
     });
 
+    const communityTopicsVal = JSON.stringify([
+      { id: 'top_1', name: '三里屯探店', hot: true, postsCount: 1280 },
+      { id: 'top_2', name: '铜锅涮肉AA', hot: true, postsCount: 890 },
+      { id: 'top_3', name: '工体纯K麦霸', hot: false, postsCount: 650 },
+      { id: 'top_4', name: '国服上分车队', hot: true, postsCount: 2310 },
+      { id: 'top_5', name: '望京跳海微醺', hot: false, postsCount: 420 },
+      { id: 'top_6', name: '同城搭子招募', hot: true, postsCount: 3100 }
+    ]);
+
+    const communityNoticeVal = JSON.stringify({
+      title: '友圈同城互动与公约置顶',
+      content: '欢迎来到同城搭子友圈！文明交友，发布真实组局诉求；平台全天候对动态与评论实施微信官方内容安全过滤，严禁广告引流及私下交易。',
+      tag: '置顶推荐',
+      showInBanner: true
+    });
+
+    const faqListVal = JSON.stringify([
+      {
+        id: 'faq_1',
+        category: '新手预约与组局',
+        question: '什么是4位纯数字核销码？',
+        answer: '为确保搭子碰面和订单真实履约，下单成功或报名组局后系统自动生成专属4位防伪数字码，到达公开活动现场后出示给陪伴师或房主签到核销。'
+      },
+      {
+        id: 'faq_2',
+        category: '新手预约与组局',
+        question: 'AA制拼桌与房主请客有什么区别？',
+        answer: '【AA制拼桌】由参与人员平摊费用，报名时支付人均分摊金额；【房主请客/项目制】由发起房主全额买单，且房主可随时追加赏金或提高出价。'
+      },
+      {
+        id: 'faq_3',
+        category: '资金与退款',
+        question: '如何申请退款与争议仲裁？',
+        answer: '在订单【待接单】或【待付款】状态可随时取消全额退款；在【服务中】或遇违约可在订单详情点击【发起争议仲裁】，由平台官方运营人工介入判定。'
+      },
+      {
+        id: 'faq_4',
+        category: '大神与收益',
+        question: '成为陪玩大神有什么资质要求？',
+        answer: '需在小程序个人中心提交实名认证与技能资质，通过平台运营团队人工审核后，即可解锁接单工作台与附近雷达扫单功能。'
+      }
+    ]);
+
     await conn.query(`
       INSERT INTO platform_configs (config_key, name, value_json, description, status)
       VALUES
       ('customer_service', '官方在线客服与服务热线', ?, '小程序端个人中心客服联系方式', 1),
       ('safety_notice', '安全履约须知与官方公告', ?, '小程序端官方指引与安全红线弹窗', 1),
-      ('platform_protocol', '平台服务协议与合规规范', ?, '小程序端服务协议与隐私政策详情', 1);
-    `, [customerServiceVal, safetyNoticeVal, protocolVal]);
+      ('platform_protocol', '平台服务协议与合规规范', ?, '小程序端服务协议与隐私政策详情', 1),
+      ('community_topics', '友圈热门推荐话题库', ?, '友圈广场发帖推荐话题与热门标签', 1),
+      ('community_notice', '友圈社区置顶头条公告', ?, '友圈广场顶部置顶横幅公告与社区公约', 1),
+      ('faq_list', '帮助中心与常见问题FAQ', ?, '小程序端帮助中心常见问答与指引', 1);
+    `, [customerServiceVal, safetyNoticeVal, protocolVal, communityTopicsVal, communityNoticeVal, faqListVal]);
   }
 }
diff --git a/server/tests/platform-config.spec.ts b/server/tests/platform-config.spec.ts
index 8cdb436..b89d39c 100644
--- a/server/tests/platform-config.spec.ts
+++ b/server/tests/platform-config.spec.ts
@@ -80,4 +80,50 @@ describe('平台通用配置与合规管理 TDD 自动化测试', () => {
     expect(merged.customer_service.hotline).toBe('400-123-4567');
     expect(merged.safety_notice.title).toBe('官方公告');
   });
+
+  it('6. 友圈热门话题与置顶公告配置校验 (P4)', () => {
+    const defaultTopics = [
+      { name: '#深夜电台', count: '1.2w+', hot: true },
+      { name: '#周末密室剧本杀', count: '8.5k', hot: true },
+      { name: '#王者峡谷车队', count: '2.1w+', hot: false }
+    ];
+    expect(defaultTopics.length).toBe(3);
+    expect(defaultTopics.filter(t => t.hot).length).toBe(2);
+
+    const notice = {
+      tag: '头条',
+      title: '友圈同城搭子发帖公约：严禁发布广告与不文明交友行为'
+    };
+    const secResult = secService.checkText(notice.title);
+    expect(secResult.pass).toBe(true);
+
+    const badNotice = {
+      tag: '广告',
+      title: '添加客服微信提供上门特殊服务'
+    };
+    const badSec = secService.checkText(badNotice.title);
+    expect(badSec.pass).toBe(false);
+    expect(badSec.code).toBe(87014);
+  });
+
+  it('7. 帮助中心与常见问题 FAQ 配置校验 (P5)', () => {
+    const faqList = [
+      {
+        question: '如何成为认证陪伴师/陪玩大神？',
+        answer: '进入【我的】->【入驻申请】，提交实名认证与技能资质，平台将在 24 小时内完成人工审核。',
+        category: '陪伴师相关'
+      },
+      {
+        question: '遇到订单纠纷如何申请平台仲裁？',
+        answer: '在【订单详情】中点击【申请仲裁退款】，客服与平台专员将在 2 小时内介入调解。',
+        category: '订单与退款'
+      }
+    ];
+
+    expect(faqList.length).toBe(2);
+    expect(faqList[0].category).toBe('陪伴师相关');
+
+    const check = secService.checkText(JSON.stringify(faqList));
+    expect(check.pass).toBe(true);
+  });
 });