fix: update mobile menu tests to use mobile viewport

e2e/src/tests/performance/interaction-performance.spec.ts

@@ -84,6 +84,7 @@ test.describe('交互性能测试 @performance', () => {
   test('移动端菜单打开应该快速', async ({ homePage, page }) => {
     await homePage.goto();
     await homePage.waitForPageLoad();
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     
     const monitor = new PerformanceMonitor(page);
     await monitor.startMonitoring();
@@ -101,6 +102,7 @@ test.describe('交互性能测试 @performance', () => {
   test('移动端菜单关闭应该快速', async ({ homePage, page }) => {
     await homePage.goto();
     await homePage.waitForPageLoad();
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     await homePage.openMobileMenu();
     
     const monitor = new PerformanceMonitor(page);

e2e/src/tests/regression/home-page.regression.spec.ts

@@ -59,6 +59,7 @@ test.describe('首页回归测试 @regression', () => {
   });
 
   test('应该能够打开和关闭移动端菜单', async ({ homePage }) => {
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     await homePage.openMobileMenu();
     await expect(homePage.mobileMenu).toBeVisible();
     
@@ -67,6 +68,7 @@ test.describe('首页回归测试 @regression', () => {
   });
 
   test('移动端菜单应该包含所有导航项', async ({ homePage }) => {
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     await homePage.openMobileMenu();
     const desktopNavItems = await homePage.getAllNavigationLabels();
     const mobileNavItems = homePage.mobileMenu.locator('a');
@@ -76,6 +78,7 @@ test.describe('首页回归测试 @regression', () => {
   });
 
   test('应该能够通过移动端菜单导航', async ({ homePage }) => {
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     await homePage.openMobileMenu();
     const firstLink = homePage.mobileMenu.locator('a').first();
     await firstLink.click();

e2e/src/tests/smoke/navigation.smoke.spec.ts

@@ -44,15 +44,18 @@ test.describe('导航冒烟测试 @smoke', () => {
   });
 
   test('应该显示移动端菜单按钮', async ({ homePage }) => {
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     await expect(homePage.mobileMenuButton).toBeVisible();
   });
 
   test('应该能够打开移动端菜单', async ({ homePage }) => {
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     await homePage.openMobileMenu();
     await expect(homePage.mobileMenu).toBeVisible();
   });
 
   test('应该能够关闭移动端菜单', async ({ homePage }) => {
+    await homePage.page.setViewportSize({ width: 375, height: 667 });
     await homePage.openMobileMenu();
     await homePage.closeMobileMenu();
     await expect(homePage.mobileMenu).not.toBeVisible();