diff --git a/README.md b/README.md
index 67ccc1d..624452f 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,14 @@
 - **样式**: Tailwind CSS
 - **工具库**: jsQR, date-fns
 
+## 环境变量
+
+可以在部署时设置以下环境变量来配置页脚信息：
+
+- `NEXT_PUBLIC_SHOW_FOOTER`: 是否显示页脚 (默认: true, 设置为 "false" 隐藏)
+- `NEXT_PUBLIC_FILING_ICP`: ICP 备案号 (例如: 滇ICP备xxxxxxxx号)
+- `NEXT_PUBLIC_FILING_SECURITY`: 公安联网备案号 (例如: 滇公网安备xxxxxxxxxxxxxx号)
+
 ## 声明
 
 本项目由阿里云ESA提供加速、计算和保护
diff --git a/app/globals.css b/app/globals.css
index dc2aea1..ab1567c 100644
--- a/app/globals.css
+++ b/app/globals.css
@@ -19,7 +19,7 @@
   --accent: oklch(0.97 0 0);
   --accent-foreground: oklch(0.205 0 0);
   --destructive: oklch(0.577 0.245 27.325);
-  --destructive-foreground: oklch(0.577 0.245 27.325);
+  --destructive-foreground: oklch(0.985 0 0);
   --border: oklch(0.922 0 0);
   --input: oklch(0.922 0 0);
   --ring: oklch(0.708 0 0);
diff --git a/app/page.tsx b/app/page.tsx
index 862a151..cfe1293 100644
--- a/app/page.tsx
+++ b/app/page.tsx
@@ -27,6 +27,7 @@ import {
   Monitor,
   Languages,
   Check,
+  Github,
 } from "lucide-react"
 import { Button } from "@/components/ui/button"
 import { Input } from "@/components/ui/input"
@@ -162,6 +163,7 @@ export default function TwoFactorAuth() {
   const [isSettingsOpen, setIsSettingsOpen] = useState(false)
   const [editingToken, setEditingToken] = useState<TOTPToken | null>(null)
   const [showAdvanced, setShowAdvanced] = useState(false)
+  const [mounted, setMounted] = useState(false)
   const videoRef = useRef<HTMLVideoElement>(null)
   const canvasRef = useRef<HTMLCanvasElement>(null)
   const fileInputRef = useRef<HTMLInputElement>(null)
@@ -195,6 +197,7 @@ export default function TwoFactorAuth() {
     if (savedSettings) {
       setSettings(JSON.parse(savedSettings))
     }
+    setMounted(true)
   }, [])
 
   // Save tokens to localStorage
@@ -655,15 +658,33 @@ export default function TwoFactorAuth() {
               </div>
             </div>
             <div className="flex items-center gap-2">
+              <Button variant="ghost" size="icon" asChild>
+                <a
+                  href="https://github.com/handsomezhuzhu/2fa-tool"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  title="GitHub"
+                >
+                  <Github className="h-5 w-5" />
+                  <span className="sr-only">GitHub</span>
+                </a>
+              </Button>
+
               <Button
                 variant="ghost"
                 size="icon"
                 onClick={cycleTheme}
-                title={theme === "light" ? t.themeLight : theme === "dark" ? t.themeDark : t.themeSystem}
+                title={mounted ? (theme === "light" ? t.themeLight : theme === "dark" ? t.themeDark : t.themeSystem) : t.themeSystem}
               >
-                {theme === "light" && <Sun className="h-5 w-5" />}
-                {theme === "dark" && <Moon className="h-5 w-5" />}
-                {theme === "system" && <Monitor className="h-5 w-5" />}
+                {!mounted ? (
+                  <Monitor className="h-5 w-5" />
+                ) : (
+                  <>
+                    {theme === "light" && <Sun className="h-5 w-5" />}
+                    {theme === "dark" && <Moon className="h-5 w-5" />}
+                    {theme === "system" && <Monitor className="h-5 w-5" />}
+                  </>
+                )}
                 <span className="sr-only">Toggle theme</span>
               </Button>
 
@@ -1028,39 +1049,50 @@ export default function TwoFactorAuth() {
       </Dialog>
 
       {/* Footer */}
-      <footer className="border-t py-6 mt-auto">
-        <div className="mx-auto flex max-w-4xl flex-col items-center gap-2 text-center md:flex-row md:justify-between md:gap-4 px-4">
-          <p className="text-xs tracking-wider text-muted-foreground">© 2025 Simon. All rights reserved.</p>
-          <div className="flex items-center gap-4 text-xs tracking-wider text-muted-foreground/60">
-            <a
-              href="https://beian.miit.gov.cn/"
-              target="_blank"
-              rel="noopener noreferrer"
-              className="transition-colors hover:text-muted-foreground"
-            >
-              滇ICP备2025074424号
-            </a>
-            <span className="text-muted-foreground/30">|</span>
-            <a
-              href="https://beian.mps.gov.cn"
-              target="_blank"
-              rel="noopener noreferrer"
-              className="flex items-center gap-1.5 transition-colors hover:text-muted-foreground"
-            >
-              <img
-                alt="公安备案"
-                loading="lazy"
-                width="14"
-                height="14"
-                decoding="async"
-                className="opacity-60"
-                src="/images/beian.png"
-              />
-              滇公网安备53250402000233号
-            </a>
+      {/* Footer */}
+      {(process.env.NEXT_PUBLIC_SHOW_FOOTER !== "false") && (
+        <footer className="border-t py-6 mt-auto">
+          <div className="mx-auto flex max-w-4xl flex-col items-center gap-2 text-center md:flex-row md:justify-between md:gap-4 px-4">
+            <p className="text-xs tracking-wider text-muted-foreground">© 2025 Simon. All rights reserved.</p>
+            {(process.env.NEXT_PUBLIC_FILING_ICP || process.env.NEXT_PUBLIC_FILING_SECURITY) && (
+              <div className="flex items-center gap-4 text-xs tracking-wider text-muted-foreground/60">
+                {process.env.NEXT_PUBLIC_FILING_ICP && (
+                  <a
+                    href="https://beian.miit.gov.cn/"
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="transition-colors hover:text-muted-foreground"
+                  >
+                    {process.env.NEXT_PUBLIC_FILING_ICP}
+                  </a>
+                )}
+                {process.env.NEXT_PUBLIC_FILING_ICP && process.env.NEXT_PUBLIC_FILING_SECURITY && (
+                  <span className="text-muted-foreground/30">|</span>
+                )}
+                {process.env.NEXT_PUBLIC_FILING_SECURITY && (
+                  <a
+                    href="https://beian.mps.gov.cn"
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="flex items-center gap-1.5 transition-colors hover:text-muted-foreground"
+                  >
+                    <img
+                      alt="公安备案"
+                      loading="lazy"
+                      width="14"
+                      height="14"
+                      decoding="async"
+                      className="opacity-60"
+                      src="/images/beian.png"
+                    />
+                    {process.env.NEXT_PUBLIC_FILING_SECURITY}
+                  </a>
+                )}
+              </div>
+            )}
           </div>
-        </div>
-      </footer>
+        </footer>
+      )}
 
       <Toaster />
     </div>
@@ -1136,9 +1168,8 @@ function TokenCard({ token, code, timeLeft, showCode, onCopy, onEdit, onDelete,
             </button>
 
             <span
-              className={`font-mono text-base font-bold min-w-[90px] text-center transition-colors ${
-                copied ? "text-green-500" : ""
-              }`}
+              className={`font-mono text-base font-bold min-w-[90px] text-center transition-colors ${copied ? "text-green-500" : ""
+                }`}
             >
               {visible ? formattedCode : "••• •••"}
             </span>
diff --git a/components/ui/toast.tsx b/components/ui/toast.tsx
index 40eedf5..6ab3311 100644
--- a/components/ui/toast.tsx
+++ b/components/ui/toast.tsx
@@ -77,7 +77,7 @@ const ToastClose = React.forwardRef<
   <ToastPrimitives.Close
     ref={ref}
     className={cn(
-      'absolute right-2 top-2 rounded-md p-1 text-foreground/50 opacity-0 transition-opacity hover:text-foreground focus:opacity-100 focus:outline-none focus:ring-2 group-hover:opacity-100 group-[.destructive]:text-red-300 group-[.destructive]:hover:text-red-50 group-[.destructive]:focus:ring-red-400 group-[.destructive]:focus:ring-offset-red-600',
+      'absolute right-2 top-2 rounded-md p-1 text-foreground/50 transition-opacity hover:text-foreground focus:opacity-100 focus:outline-none focus:ring-2 group-hover:opacity-100 group-[.destructive]:text-red-300 group-[.destructive]:hover:text-red-50 group-[.destructive]:focus:ring-red-400 group-[.destructive]:focus:ring-offset-red-600',
       className,
     )}
     toast-close=""
diff --git a/package.json b/package.json
index 83ce636..24fa36c 100644
--- a/package.json
+++ b/package.json
@@ -69,6 +69,6 @@
     "postcss": "^8.5",
     "tailwindcss": "^4.1.9",
     "tw-animate-css": "1.3.3",
-    "typescript": "^5"
+    "typescript": "^5.9.3"
   }
 }
\ No newline at end of file
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4974cc3..4f4c083 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -184,8 +184,8 @@ importers:
         specifier: 1.3.3
         version: 1.3.3
       typescript:
-        specifier: ^5
-        version: 5.0.2
+        specifier: ^5.9.3
+        version: 5.9.3
 
 packages:
 
@@ -1694,9 +1694,9 @@ packages:
   tw-animate-css@1.3.3:
     resolution: {integrity: sha512-tXE2TRWrskc4TU3RDd7T8n8Np/wCfoeH9gz22c7PzYqNPQ9FBGFbWWzwL0JyHcFp+jHozmF76tbHfPAx22ua2Q==}
 
-  typescript@5.0.2:
-    resolution: {integrity: sha512-wVORMBGO/FAs/++blGNeAVdbNKtIh1rbBL2EyQ1+J9lClJ93KiiKe8PmFIVdXhHcyv44SL9oglmfeSsndo0jRw==}
-    engines: {node: '>=12.20'}
+  typescript@5.9.3:
+    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
+    engines: {node: '>=14.17'}
     hasBin: true
 
   undici-types@6.11.1:
@@ -3173,7 +3173,7 @@ snapshots:
 
   tw-animate-css@1.3.3: {}
 
-  typescript@5.0.2: {}
+  typescript@5.9.3: {}
 
   undici-types@6.11.1: {}
 
diff --git a/tsconfig.json b/tsconfig.json
index 4b2dc7b..48d6d82 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,10 @@
 {
   "compilerOptions": {
-    "lib": ["dom", "dom.iterable", "esnext"],
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "esnext"
+    ],
     "allowJs": true,
     "target": "ES6",
     "skipLibCheck": true,
@@ -11,7 +15,7 @@
     "moduleResolution": "bundler",
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "jsx": "preserve",
+    "jsx": "react-jsx",
     "incremental": true,
     "plugins": [
       {
@@ -19,9 +23,19 @@
       }
     ],
     "paths": {
-      "@/*": ["./*"]
+      "@/*": [
+        "./*"
+      ]
     }
   },
-  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
-  "exclude": ["node_modules"]
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
 }