diff --git a/app/layout.tsx b/app/layout.tsx
index c4b0041..05a83b8 100644
--- a/app/layout.tsx
+++ b/app/layout.tsx
@@ -12,8 +12,8 @@ export const metadata: Metadata = {
   description: "个人站点导航与管理中心",
   generator: "v0.app",
   icons: {
-    icon: "/images/e5-be-ae-e4-bf-a1-e5-9b-be-e7-89-87-20241017130915.jpg",
-    apple: "/images/e5-be-ae-e4-bf-a1-e5-9b-be-e7-89-87-20241017130915.jpg",
+    icon: "/favicon.ico",
+    apple: "/favicon.ico",
   },
 }
 
diff --git a/components/site-navigation.tsx b/components/site-navigation.tsx
index fdf09fe..961fd6d 100644
--- a/components/site-navigation.tsx
+++ b/components/site-navigation.tsx
@@ -341,7 +341,27 @@ export function SiteNavigation() {
 
         {/* Footer */}
         <footer className="mt-16 pt-8 border-t border-border">
-          <p className="text-center text-sm text-muted-foreground">
+          <div className="flex flex-wrap items-center justify-center gap-x-4 gap-y-2 text-sm text-muted-foreground">
+            <span>Copyright © 2019 - 2025</span>
+            <a
+              href="https://beian.miit.gov.cn/"
+              target="_blank"
+              rel="noopener noreferrer"
+              className="hover:text-foreground transition-colors"
+            >
+              滇ICP备2025074424号
+            </a>
+            <a
+              href="https://beian.mps.gov.cn"
+              target="_blank"
+              rel="noopener noreferrer"
+              className="inline-flex items-center gap-1 hover:text-foreground transition-colors"
+            >
+              <img src="/images/beian.png" alt="备案图标" className="size-4" />
+              滇公网安备53250402000233号
+            </a>
+          </div>
+          <p className="text-center text-sm text-muted-foreground mt-4">
             共 {categories.reduce((acc, cat) => acc + cat.sites.length, 0)} 个站点 · 个人使用
           </p>
         </footer>
diff --git a/public/favicon.ico b/public/favicon.ico
new file mode 100644
index 0000000..4747567
Binary files /dev/null and b/public/favicon.ico differ
diff --git a/public/images/beian.png b/public/images/beian.png
new file mode 100644
index 0000000..2a13ba2
Binary files /dev/null and b/public/images/beian.png differ