diff --git a/docusaurus.config.js b/docusaurus.config.js
index 89bfbad..300a358 100644
--- a/docusaurus.config.js
+++ b/docusaurus.config.js
@@ -120,7 +120,7 @@ const config = {
               },
               {
                 label: 'Installation',
-                href: 'https://docs.ivorysql.org/en/ivorysql-doc/v5.1/v5.1/3.1#quick-installation',
+                to: '/docs-installation',
               },
               {
                 label: 'Contribution Guidelines',
@@ -146,7 +146,7 @@ const config = {
           },
           {
             label: 'Ecological Cooperation',
-            href: 'https://docs.ivorysql.org/en/ivorysql-doc/v5.1/v5.1/5.0',
+            to: '/docs-ecosystem',
             position: 'left'
           },
           {
@@ -181,6 +181,10 @@ const config = {
                 href: 'https://github.com/IvorySQL/IvorySQL',
                 label: 'Github',
               },
+              {
+                href: 'https://atomgit.com/IvorySQL/IvorySQL',
+                label: 'GitCode',
+              },
             ]
           },
           {
@@ -262,4 +266,4 @@ const config = {
     }),
 };
 
-module.exports = config;
\ No newline at end of file
+module.exports = config;
diff --git a/src/pages/docs-ecosystem.js b/src/pages/docs-ecosystem.js
new file mode 100644
index 0000000..a910477
--- /dev/null
+++ b/src/pages/docs-ecosystem.js
@@ -0,0 +1,35 @@
+import React, { useEffect } from 'react';
+import Layout from '@theme/Layout';
+import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
+
+const DOCS_BASE = 'https://docs.ivorysql.org';
+const DOCS_VERSION = 'v5.1/v5.1';
+
+function buildTarget(locale) {
+  const normalizedLocale = (locale || 'en').toLowerCase();
+  const docsLocaleSegment = normalizedLocale.startsWith('zh') ? 'cn' : 'en';
+  return `${DOCS_BASE}/${docsLocaleSegment}/ivorysql-doc/${DOCS_VERSION}/5.0`;
+}
+
+export default function DocsEcosystemRedirect() {
+  const { i18n } = useDocusaurusContext();
+  const target = buildTarget(i18n.currentLocale);
+
+  useEffect(() => {
+    if (typeof window === 'undefined') {
+      return;
+    }
+    window.location.replace(target);
+  }, [target]);
+
+  return (
+    <Layout title="Redirecting...">
+      <main style={{ padding: '2rem', textAlign: 'center' }}>
+        <p>Redirecting to documentation...</p>
+        <p>
+          If you are not redirected, <a href={target}>click here</a>.
+        </p>
+      </main>
+    </Layout>
+  );
+}
diff --git a/src/pages/docs-installation.js b/src/pages/docs-installation.js
new file mode 100644
index 0000000..0cec2d1
--- /dev/null
+++ b/src/pages/docs-installation.js
@@ -0,0 +1,35 @@
+import React, { useEffect } from 'react';
+import Layout from '@theme/Layout';
+import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
+
+const DOCS_BASE = 'https://docs.ivorysql.org';
+const DOCS_VERSION = 'v5.1/v5.1';
+
+function buildTarget(locale) {
+  const normalizedLocale = (locale || 'en').toLowerCase();
+  const docsLocaleSegment = normalizedLocale.startsWith('zh') ? 'cn' : 'en';
+  return `${DOCS_BASE}/${docsLocaleSegment}/ivorysql-doc/${DOCS_VERSION}/3.1#quick-installation`;
+}
+
+export default function DocsInstallationRedirect() {
+  const { i18n } = useDocusaurusContext();
+  const target = buildTarget(i18n.currentLocale);
+
+  useEffect(() => {
+    if (typeof window === 'undefined') {
+      return;
+    }
+    window.location.replace(target);
+  }, [target]);
+
+  return (
+    <Layout title="Redirecting...">
+      <main style={{ padding: '2rem', textAlign: 'center' }}>
+        <p>Redirecting to documentation...</p>
+        <p>
+          If you are not redirected, <a href={target}>click here</a>.
+        </p>
+      </main>
+    </Layout>
+  );
+}