diff --git a/src/renderer/src/ProjectSwitcher.test.tsx b/src/renderer/src/ProjectSwitcher.test.tsx
index a7df6bfc..f53dba8e 100644
--- a/src/renderer/src/ProjectSwitcher.test.tsx
+++ b/src/renderer/src/ProjectSwitcher.test.tsx
@@ -395,12 +395,14 @@ describe('ProjectSwitcher runtime fields', () => {
   it('floats the project menu outside the sidebar and keeps menu interactions open', async () => {
     renderSwitcher()
     const trigger = screen.getByRole('button', { name: '当前项目' })
+    vi.spyOn(trigger, 'getBoundingClientRect').mockReturnValue(new DOMRect(16, 16, 240, 60))
     fireEvent.click(trigger)
     const menu = screen.getByRole('menu')
     expect(trigger.closest('.project-switcher')).not.toContainElement(menu)
     expect(menu.closest('.floating-portal')?.parentElement).toBe(document.body)
     const surface = screen.getByRole('dialog', { name: '项目与活动' })
     expect(surface.style.width).toBe('680px')
+    expect(surface.style.left).toBe('14px')
     const selected = within(menu).getByRole('menuitemradio', { checked: true })
     await waitFor(() => expect(screen.getByRole('tab', { name: '全部项目' })).toHaveFocus())
     fireEvent.pointerDown(selected)
@@ -409,7 +411,7 @@ describe('ProjectSwitcher runtime fields', () => {
     const width = vi.spyOn(window, 'innerWidth', 'get').mockReturnValue(360)
     fireEvent(window, new Event('resize'))
     expect(surface.style.width).toBe('328px')
-    expect(surface.style.left).toBe('16px')
+    expect(surface.style.left).toBe('14px')
     width.mockRestore()
     fireEvent.keyDown(selected, { key: 'Escape' })
     expect(screen.queryByRole('menu')).not.toBeInTheDocument()
diff --git a/src/renderer/src/WorkspaceMenu.tsx b/src/renderer/src/WorkspaceMenu.tsx
index 9d8f9be4..a43c4cac 100644
--- a/src/renderer/src/WorkspaceMenu.tsx
+++ b/src/renderer/src/WorkspaceMenu.tsx
@@ -174,7 +174,7 @@ export function WorkspaceMenu({
       const rect = anchor.getBoundingClientRect()
       const width = Math.min(680, window.innerWidth - 32)
       menu.style.width = `${width}px`
-      menu.style.left = `${Math.max(16, Math.min(rect.left, window.innerWidth - width - 16))}px`
+      menu.style.left = `${Math.max(14, Math.min(rect.left - 2, window.innerWidth - width - 16))}px`
       const top = Math.max(16, rect.bottom + 8)
       menu.style.top = `${top}px`
       menu.style.maxHeight = `${Math.max(0, window.innerHeight - top - 16)}px`