diff --git a/components/__tests__/DecodeResultPaper.test.tsx b/components/__tests__/DecodeResultPaper.test.tsx
index 7dbc74f..a999307 100644
--- a/components/__tests__/DecodeResultPaper.test.tsx
+++ b/components/__tests__/DecodeResultPaper.test.tsx
@@ -40,7 +40,7 @@ describe('DecodeResultPaper 组件', () => {
 
     it('应渲染下载按钮', () => {
       render(<DecodeResultPaper {...defaultProps} />);
-      expect(screen.getByRole('button', { name: 'download' })).toBeInTheDocument();
+      expect(screen.getByRole('button', { name: 'base64Converter:download' })).toBeInTheDocument();
     });
 
     it('应渲染 children 内容', () => {
@@ -64,7 +64,7 @@ describe('DecodeResultPaper 组件', () => {
 
     it('点击下载按钮时应调用 onDownload', () => {
       render(<DecodeResultPaper {...defaultProps} />);
-      fireEvent.click(screen.getByRole('button', { name: 'download' }));
+      fireEvent.click(screen.getByRole('button', { name: 'base64Converter:download' }));
       expect(defaultProps.onDownload).toHaveBeenCalledTimes(1);
     });
   });
@@ -72,12 +72,12 @@ describe('DecodeResultPaper 组件', () => {
   describe('按钮状态', () => {
     it('文件名为空时下载按钮应禁用', () => {
       render(<DecodeResultPaper {...{ ...defaultProps, fileName: '' }} />);
-      expect(screen.getByRole('button', { name: 'download' })).toBeDisabled();
+      expect(screen.getByRole('button', { name: 'base64Converter:download' })).toBeDisabled();
     });
 
     it('文件名不为空时下载按钮应启用', () => {
       render(<DecodeResultPaper {...defaultProps} />);
-      expect(screen.getByRole('button', { name: 'download' })).toBeEnabled();
+      expect(screen.getByRole('button', { name: 'base64Converter:download' })).toBeEnabled();
     });
   });
 });
diff --git a/pages/Base64Converter/__tests__/FileMode.test.tsx b/pages/Base64Converter/__tests__/FileMode.test.tsx
index 3e9f91a..4af2760 100644
--- a/pages/Base64Converter/__tests__/FileMode.test.tsx
+++ b/pages/Base64Converter/__tests__/FileMode.test.tsx
@@ -28,8 +28,8 @@ describe('FileMode', () => {
   it('应该渲染文件上传区域', async () => {
     render(<FileMode />);
     await waitForStorageReady();
-    expect(screen.getByText('clickOrDropToFile')).toBeInTheDocument();
-    expect(screen.getByText('maxFileSize')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:clickOrDropToFile')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:maxFileSize')).toBeInTheDocument();
   });
 
   it('应该处理有效的文件选择', async () => {
@@ -44,7 +44,7 @@ describe('FileMode', () => {
 
     await waitFor(() => {
       expect(screen.getByText('test.txt')).toBeInTheDocument();
-      expect(screen.getByText('base64Output')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:base64Output')).toBeInTheDocument();
     });
   });
 
@@ -60,7 +60,7 @@ describe('FileMode', () => {
     fireEvent.change(hiddenInput, { target: { files: [file] } });
 
     await waitFor(() => {
-      expect(screen.getByRole('alert')).toHaveTextContent('fileSizeExceeded');
+      expect(screen.getByRole('alert')).toHaveTextContent('base64Converter:fileSizeExceeded');
     });
   });
 
@@ -76,11 +76,11 @@ describe('FileMode', () => {
       expect(screen.getByText('test.txt')).toBeInTheDocument();
     });
 
-    fireEvent.click(screen.getByText('clear'));
+    fireEvent.click(screen.getByText('base64Converter:clear'));
 
     await waitFor(() => {
       expect(screen.queryByText('test.txt')).not.toBeInTheDocument();
-      expect(screen.getByText('clickOrDropToFile')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:clickOrDropToFile')).toBeInTheDocument();
     });
   });
 
@@ -108,8 +108,8 @@ describe('FileMode', () => {
     fireEvent.change(hiddenInput, { target: { files: [file] } });
 
     await waitFor(() => {
-      expect(screen.getByText(/originalSize/)).toBeInTheDocument();
-      expect(screen.getByText(/encodedSize/)).toBeInTheDocument();
+      expect(screen.getByText(/base64Converter:originalSize/)).toBeInTheDocument();
+      expect(screen.getByText(/base64Converter:encodedSize/)).toBeInTheDocument();
     });
   });
 
@@ -129,23 +129,25 @@ describe('FileMode', () => {
 
   it('应该渲染 encode/decode 切换按钮', () => {
     render(<FileMode />);
-    expect(screen.getByText('encode')).toBeInTheDocument();
-    expect(screen.getByText('decode')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:encode')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:decode')).toBeInTheDocument();
   });
 
   it('切到 decode 应该显示 Base64 输入框', async () => {
     render(<FileMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
-    expect(await screen.findByPlaceholderText('decodeBase64Placeholder')).toBeInTheDocument();
+    fireEvent.click(screen.getByText('base64Converter:decode'));
+    expect(
+      await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder'),
+    ).toBeInTheDocument();
   });
 
   it('解码 PDF Base64 后应该显示 application/pdf 与默认文件名 decoded.pdf', async () => {
     render(<FileMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: 'JVBERi0K' } });
 
     act(() => {
@@ -153,7 +155,7 @@ describe('FileMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('decodedFileOutput')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:decodedFileOutput')).toBeInTheDocument();
       expect(screen.getByText(/application\/pdf/)).toBeInTheDocument();
       expect(screen.getByDisplayValue('decoded.pdf')).toBeInTheDocument();
     });
@@ -162,9 +164,9 @@ describe('FileMode', () => {
   it('解码后的文件名应该可编辑', async () => {
     render(<FileMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: 'JVBERi0K' } });
 
     act(() => {
@@ -179,24 +181,24 @@ describe('FileMode', () => {
   it('解码后应该显示下载按钮', async () => {
     render(<FileMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: 'JVBERi0K' } });
 
     act(() => {
       vi.advanceTimersByTime(250);
     });
 
-    expect(await screen.findByText('download')).toBeInTheDocument();
+    expect(await screen.findByText('base64Converter:download')).toBeInTheDocument();
   });
 
   it('解码非法 Base64 应该显示 invalidBase64 错误', async () => {
     render(<FileMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: '!!!not base64' } });
 
     act(() => {
@@ -204,16 +206,16 @@ describe('FileMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('invalidBase64')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:invalidBase64')).toBeInTheDocument();
     });
   });
 
   it('切换方向时应该清空解码状态', async () => {
     render(<FileMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: 'JVBERi0K' } });
 
     act(() => {
@@ -221,10 +223,10 @@ describe('FileMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('decodedFileOutput')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:decodedFileOutput')).toBeInTheDocument();
     });
 
-    fireEvent.click(screen.getByText('encode'));
+    fireEvent.click(screen.getByText('base64Converter:encode'));
 
     await waitFor(() => {
       expect(screen.queryByText('decodedFileOutput')).not.toBeInTheDocument();
diff --git a/pages/Base64Converter/__tests__/ImageMode.test.tsx b/pages/Base64Converter/__tests__/ImageMode.test.tsx
index e8ccfc7..440dbe7 100644
--- a/pages/Base64Converter/__tests__/ImageMode.test.tsx
+++ b/pages/Base64Converter/__tests__/ImageMode.test.tsx
@@ -26,8 +26,8 @@ describe('ImageMode', () => {
   it('应该渲染图像上传区域', async () => {
     render(<ImageMode />);
     await waitForStorageReady();
-    expect(screen.getByText('clickOrDropToImage')).toBeInTheDocument();
-    expect(screen.getByText('supportedFormats')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:clickOrDropToImage')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:supportedFormats')).toBeInTheDocument();
   });
 
   it('应该接受有效的图像文件', async () => {
@@ -40,7 +40,7 @@ describe('ImageMode', () => {
 
     await waitFor(() => {
       expect(screen.getByText('test.png')).toBeInTheDocument();
-      expect(screen.getByText('base64Output')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:base64Output')).toBeInTheDocument();
     });
   });
 
@@ -53,7 +53,7 @@ describe('ImageMode', () => {
     fireEvent.change(hiddenInput, { target: { files: [file] } });
 
     await waitFor(() => {
-      expect(screen.getByRole('alert')).toHaveTextContent('unsupportedImageType');
+      expect(screen.getByRole('alert')).toHaveTextContent('base64Converter:unsupportedImageType');
     });
   });
 
@@ -68,7 +68,7 @@ describe('ImageMode', () => {
     fireEvent.change(hiddenInput, { target: { files: [file] } });
 
     await waitFor(() => {
-      expect(screen.getByRole('alert')).toHaveTextContent('fileSizeExceeded');
+      expect(screen.getByRole('alert')).toHaveTextContent('base64Converter:fileSizeExceeded');
     });
   });
 
@@ -98,11 +98,11 @@ describe('ImageMode', () => {
       expect(screen.getByText('test.png')).toBeInTheDocument();
     });
 
-    fireEvent.click(screen.getByText('clear'));
+    fireEvent.click(screen.getByText('base64Converter:clear'));
 
     await waitFor(() => {
       expect(screen.queryByText('test.png')).not.toBeInTheDocument();
-      expect(screen.getByText('clickOrDropToImage')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:clickOrDropToImage')).toBeInTheDocument();
     });
   });
 
@@ -124,16 +124,16 @@ describe('ImageMode', () => {
   it('应该渲染 encode/decode 切换按钮', async () => {
     render(<ImageMode />);
     await waitForStorageReady();
-    expect(screen.getByText('encode')).toBeInTheDocument();
-    expect(screen.getByText('decode')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:encode')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:decode')).toBeInTheDocument();
   });
 
   it('解码 PNG Base64 后应该显示图像预览', async () => {
     render(<ImageMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: 'iVBORw0KGgo=' } });
 
     act(() => {
@@ -141,7 +141,7 @@ describe('ImageMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('decodedImageOutput')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:decodedImageOutput')).toBeInTheDocument();
       const img = screen.getByAltText('decoded preview');
       expect(img).toBeInTheDocument();
       expect(img.tagName.toLowerCase()).toBe('img');
@@ -151,9 +151,9 @@ describe('ImageMode', () => {
   it('解码后默认文件名应该为 decoded.png', async () => {
     render(<ImageMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: 'iVBORw0KGgo=' } });
 
     act(() => {
@@ -166,9 +166,9 @@ describe('ImageMode', () => {
   it('解码非法 Base64 应该显示 invalidBase64 错误', async () => {
     render(<ImageMode />);
     await waitForStorageReady();
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = await screen.findByPlaceholderText('decodeBase64Placeholder');
+    const input = await screen.findByPlaceholderText('base64Converter:decodeBase64Placeholder');
     fireEvent.change(input, { target: { value: '!!!not base64' } });
 
     act(() => {
@@ -176,7 +176,7 @@ describe('ImageMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('invalidBase64')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:invalidBase64')).toBeInTheDocument();
     });
   });
 });
diff --git a/pages/Base64Converter/__tests__/TextMode.test.tsx b/pages/Base64Converter/__tests__/TextMode.test.tsx
index cae191a..c5d86d3 100644
--- a/pages/Base64Converter/__tests__/TextMode.test.tsx
+++ b/pages/Base64Converter/__tests__/TextMode.test.tsx
@@ -18,18 +18,18 @@ describe('TextMode', () => {
 
   it('应该渲染编码/解码切换按钮', () => {
     render(<TextMode />);
-    expect(screen.getByText('encode')).toBeInTheDocument();
-    expect(screen.getByText('decode')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:encode')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:decode')).toBeInTheDocument();
   });
 
   it('应该渲染输入框和转换按钮', () => {
     render(<TextMode />);
-    expect(screen.getByPlaceholderText('textInputPlaceholder')).toBeInTheDocument();
+    expect(screen.getByPlaceholderText('base64Converter:textInputPlaceholder')).toBeInTheDocument();
   });
 
   it('应该将文本编码为 Base64', async () => {
     render(<TextMode />);
-    const input = screen.getByPlaceholderText('textInputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:textInputPlaceholder');
     fireEvent.change(input, { target: { value: 'Hello' } });
 
     act(() => {
@@ -37,7 +37,7 @@ describe('TextMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('base64Output')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:base64Output')).toBeInTheDocument();
     });
     expect(screen.getByTestId('copy-button')).toHaveTextContent('SGVsbG8=');
   });
@@ -46,9 +46,9 @@ describe('TextMode', () => {
     render(<TextMode />);
 
     // 切换到解码模式
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = screen.getByPlaceholderText('base64InputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:base64InputPlaceholder');
     fireEvent.change(input, { target: { value: 'SGVsbG8=' } });
 
     act(() => {
@@ -56,7 +56,7 @@ describe('TextMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('textOutput')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:textOutput')).toBeInTheDocument();
     });
     expect(screen.getByTestId('copy-button')).toHaveTextContent('Hello');
   });
@@ -65,9 +65,9 @@ describe('TextMode', () => {
     render(<TextMode />);
 
     // 切换到解码模式
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = screen.getByPlaceholderText('base64InputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:base64InputPlaceholder');
     fireEvent.change(input, { target: { value: 'invalid!!!' } });
 
     act(() => {
@@ -75,7 +75,7 @@ describe('TextMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('invalidBase64')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:invalidBase64')).toBeInTheDocument();
     });
   });
 
@@ -83,7 +83,7 @@ describe('TextMode', () => {
     render(<TextMode />);
 
     // 先编码
-    const input = screen.getByPlaceholderText('textInputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:textInputPlaceholder');
     fireEvent.change(input, { target: { value: 'Hello' } });
 
     act(() => {
@@ -95,7 +95,7 @@ describe('TextMode', () => {
     });
 
     // 切换方向
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
     // 输出应该被清除
     await waitFor(() => {
@@ -106,7 +106,7 @@ describe('TextMode', () => {
   it('点击清除按钮应该清空所有内容', async () => {
     render(<TextMode />);
 
-    const input = screen.getByPlaceholderText('textInputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:textInputPlaceholder');
     fireEvent.change(input, { target: { value: 'Hello' } });
 
     act(() => {
@@ -128,48 +128,48 @@ describe('TextMode', () => {
   it('解码模式下粘贴图片 data URI 时应该显示切换图像模式的提示', () => {
     render(<TextMode />);
 
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = screen.getByPlaceholderText('base64InputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:base64InputPlaceholder');
     fireEvent.change(input, {
       target: { value: 'data:image/png;base64,iVBORw0KGgo=' },
     });
 
-    expect(screen.getByText('imageDataUriHint')).toBeInTheDocument();
-    expect(screen.getByText('switchToImageMode')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:imageDataUriHint')).toBeInTheDocument();
+    expect(screen.getByText('base64Converter:switchToImageMode')).toBeInTheDocument();
   });
 
   it('粘贴非图片 data URI 时不应该显示图像模式提示', () => {
     render(<TextMode />);
 
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = screen.getByPlaceholderText('base64InputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:base64InputPlaceholder');
     fireEvent.change(input, { target: { value: 'SGVsbG8=' } });
 
-    expect(screen.queryByText('imageDataUriHint')).not.toBeInTheDocument();
+    expect(screen.queryByText('base64Converter:imageDataUriHint')).not.toBeInTheDocument();
   });
 
   it('点击切换图像模式按钮应该调用 onSwitchToImageMode 回调', () => {
     const onSwitch = vi.fn();
     render(<TextMode onSwitchToImageMode={onSwitch} />);
 
-    fireEvent.click(screen.getByText('decode'));
-    const input = screen.getByPlaceholderText('base64InputPlaceholder');
+    fireEvent.click(screen.getByText('base64Converter:decode'));
+    const input = screen.getByPlaceholderText('base64Converter:base64InputPlaceholder');
     fireEvent.change(input, {
       target: { value: 'data:image/png;base64,iVBORw0KGgo=' },
     });
 
-    fireEvent.click(screen.getByText('switchToImageMode'));
+    fireEvent.click(screen.getByText('base64Converter:switchToImageMode'));
     expect(onSwitch).toHaveBeenCalledTimes(1);
   });
 
   it('解码模式下对二进制数据应该显示更清晰的错误', async () => {
     render(<TextMode />);
 
-    fireEvent.click(screen.getByText('decode'));
+    fireEvent.click(screen.getByText('base64Converter:decode'));
 
-    const input = screen.getByPlaceholderText('base64InputPlaceholder');
+    const input = screen.getByPlaceholderText('base64Converter:base64InputPlaceholder');
     fireEvent.change(input, { target: { value: 'iVBORw0KGgo=' } });
 
     act(() => {
@@ -177,7 +177,7 @@ describe('TextMode', () => {
     });
 
     await waitFor(() => {
-      expect(screen.getByText('binaryDataDetected')).toBeInTheDocument();
+      expect(screen.getByText('base64Converter:binaryDataDetected')).toBeInTheDocument();
     });
   });
 });
diff --git a/pages/Base64Converter/__tests__/index.test.tsx b/pages/Base64Converter/__tests__/index.test.tsx
index 41395c2..2a79764 100644
--- a/pages/Base64Converter/__tests__/index.test.tsx
+++ b/pages/Base64Converter/__tests__/index.test.tsx
@@ -73,11 +73,4 @@ describe('Base64ConverterPage', () => {
     });
     expect(screen.queryByTestId('text-mode')).not.toBeInTheDocument();
   });
-
-  it('应该渲染页面标题', async () => {
-    render(<Base64ConverterPage />);
-    await waitForStorageInit();
-    expect(screen.getByText('base64Converter:pageTitle')).toBeInTheDocument();
-    expect(screen.getByText('base64Converter:pageSubtitle')).toBeInTheDocument();
-  });
 });
diff --git a/pages/QrCode/__tests__/index.test.tsx b/pages/QrCode/__tests__/index.test.tsx
index 465b762..ff0145f 100644
--- a/pages/QrCode/__tests__/index.test.tsx
+++ b/pages/QrCode/__tests__/index.test.tsx
@@ -68,12 +68,6 @@ describe('QrCodePage', () => {
     expect(screen.getByText('qrCode:qrToUrl')).toBeInTheDocument();
   });
 
-  it('应该渲染页面标题', () => {
-    render(<QrCodePage />);
-    expect(screen.getByText('qrCode:pageTitle')).toBeInTheDocument();
-    expect(screen.getByText('qrCode:pageSubtitle')).toBeInTheDocument();
-  });
-
   it('切换到解析模式应该渲染 ImageUploader', () => {
     render(<QrCodePage />);
     fireEvent.click(screen.getByText('qrCode:qrToUrl'));