diff --git a/README.en.md b/README.en.md
index ac2ba0f..ad58b59 100644
--- a/README.en.md
+++ b/README.en.md
@@ -26,6 +26,7 @@
 - [Documentation](#documentation)
 - [FAQ & Troubleshooting](#faq--troubleshooting)
 - [Star History](#star-history)
+- [Community](#community)
 - [Friendly Links](#friendly-links)
 - [Contributing](#contributing)
 - [License](#license)
@@ -170,6 +171,13 @@ Paste before `</body>`. Point iframe `src` to `https://your-domain/chat`. The pa
   </picture>
 </a>
 
+<a id="community"></a>
+
+## Community
+
+- **Bugs / feature requests**：[GitHub Issues](https://github.com/2930134478/AI-CS/issues) (include deployment method and logs; never post API keys or DB passwords)
+- **QQ group**：1106804464. It appears in the [demo site footer](https://demo.cscorp.top) under Contact.
+
 ## Friendly Links
 
 - [Live demo](https://demo.cscorp.top)
diff --git a/README.md b/README.md
index e4bda96..a88b283 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@
 - [相关文档](#docs)
 - [常见问题与排障](#faq)
 - [Star History](#star-history)
+- [交流与反馈](#community)
 - [Friendly Links](#friendly-links)
 - [贡献](#contributing)
 - [许可证](#license)
@@ -334,6 +335,13 @@ npm run dev
   </picture>
 </a>
 
+<a id="community"></a>
+
+## 交流与反馈
+
+- **Bug / 功能建议**：[GitHub Issues](https://github.com/2930134478/AI-CS/issues)（请附部署方式、后端日志；勿贴 API Key、数据库密码）
+- **QQ 交流群**：在 `frontend/lib/website-config.ts` 填写 `contact.qqGroupNumber`（可选 `contact.qqGroupJoinUrl` 加群链接）后，[官网 / Demo 页脚](https://demo.cscorp.top)「联系我们」会同步展示
+
 ## Friendly Links
 
 - [在线演示 · AI-CS Demo](https://demo.cscorp.top)
diff --git a/_tmp_csdn_article.html b/_tmp_csdn_article.html
deleted file mode 100644
index e69de29..0000000
diff --git a/frontend/components/layout/Footer.tsx b/frontend/components/layout/Footer.tsx
index a636121..8845ae0 100644
--- a/frontend/components/layout/Footer.tsx
+++ b/frontend/components/layout/Footer.tsx
@@ -1,7 +1,7 @@
 "use client";
 
 import Link from "next/link";
-import { Github, Mail, MessageSquare } from "lucide-react";
+import { Github, Mail, MessageSquare, Users } from "lucide-react";
 import { websiteConfig } from "@/lib/website-config";
 import { useI18n } from "@/lib/i18n/provider";
 
@@ -113,6 +113,26 @@ export function Footer() {
                   </a>
                 </li>
               ) : null}
+              {websiteConfig.contact.qqGroupNumber ? (
+                <li className="flex items-center space-x-2 text-muted-foreground">
+                  <Users className="h-4 w-4 shrink-0" />
+                  {websiteConfig.contact.qqGroupJoinUrl ? (
+                    <a
+                      href={websiteConfig.contact.qqGroupJoinUrl}
+                      target="_blank"
+                      rel="noopener noreferrer"
+                      aria-label={t("footer.qqGroupAria")}
+                      className="transition-colors hover:text-foreground"
+                    >
+                      {t("footer.qqGroup")}: {websiteConfig.contact.qqGroupNumber}
+                    </a>
+                  ) : (
+                    <span>
+                      {t("footer.qqGroup")}: {websiteConfig.contact.qqGroupNumber}
+                    </span>
+                  )}
+                </li>
+              ) : null}
               <li className="flex items-center space-x-2 text-muted-foreground">
                 <Github className="h-4 w-4" />
                 <a
diff --git a/frontend/lib/i18n/dict.ts b/frontend/lib/i18n/dict.ts
index f27d464..f17a496 100644
--- a/frontend/lib/i18n/dict.ts
+++ b/frontend/lib/i18n/dict.ts
@@ -103,6 +103,8 @@ export type I18nKey =
   | "footer.poweredBy"
   | "footer.allRightsReserved"
   | "footer.emailLabel"
+  | "footer.qqGroup"
+  | "footer.qqGroupAria"
   | "agent.page.dashboard"
   | "agent.page.internalChat"
   | "agent.page.knowledge"
@@ -648,6 +650,8 @@ export const DICT: Record<Lang, Record<I18nKey, string>> = {
     "footer.poweredBy": "Powered by Next.js & Go |",
     "footer.allRightsReserved": "保留所有权利。",
     "footer.emailLabel": "邮箱",
+    "footer.qqGroup": "QQ 交流群",
+    "footer.qqGroupAria": "加入 QQ 交流群",
     "agent.page.dashboard": "对话",
     "agent.page.internalChat": "知识库测试",
     "agent.page.knowledge": "知识库",
@@ -1211,6 +1215,8 @@ export const DICT: Record<Lang, Record<I18nKey, string>> = {
     "footer.poweredBy": "Powered by Next.js & Go |",
     "footer.allRightsReserved": "All rights reserved.",
     "footer.emailLabel": "Email",
+    "footer.qqGroup": "QQ group",
+    "footer.qqGroupAria": "Join QQ group",
     "agent.page.dashboard": "Chats",
     "agent.page.internalChat": "KB Test",
     "agent.page.knowledge": "Knowledge Base",
diff --git a/frontend/lib/website-config.ts b/frontend/lib/website-config.ts
index 15243e1..8cb4483 100644
--- a/frontend/lib/website-config.ts
+++ b/frontend/lib/website-config.ts
@@ -19,6 +19,10 @@ export const websiteConfig = {
   contact: {
     email: "contact@example.com", // 可选：邮箱地址
     wechat: "", // 可选：微信号或微信群链接
+    /** QQ 交流群号（纯数字或展示文案）；留空则页脚不显示 */
+    qqGroupNumber: "",
+    /** 可选：一键加群链接（如 https://qm.qq.com/q/xxxxx ），有则页脚可点击 */
+    qqGroupJoinUrl: "",
   },
   
   // 友情链接（用于互相引流）