diff --git a/web/src/components/CodexSessionSyncDialog.test.tsx b/web/src/components/CodexSessionSyncDialog.test.tsx
index a90e167b..81f524f2 100644
--- a/web/src/components/CodexSessionSyncDialog.test.tsx
+++ b/web/src/components/CodexSessionSyncDialog.test.tsx
@@ -5,9 +5,10 @@ import { CodexSessionSyncDialog } from './CodexSessionSyncDialog'
 import type { CodexLocalSessionSummary } from '@/types/api'
 
 function renderDialog(
-    sessions: CodexLocalSessionSummary[],
+    sessions: CodexLocalSessionSummary[] = [],
     onConfirm = vi.fn(async () => {}),
-    currentCodexSessionId: string | null = null
+    currentCodexSessionId: string | null = null,
+    onRestartCodexDesktop = vi.fn(async () => {})
 ) {
     const view = render(
         <I18nProvider>
@@ -17,14 +18,14 @@ function renderDialog(
                 sessions={sessions}
                 currentCodexSessionId={currentCodexSessionId}
                 onConfirm={onConfirm}
-                onRestartCodexDesktop={vi.fn()}
+                onRestartCodexDesktop={onRestartCodexDesktop}
                 isPending={false}
                 isRestartingCodexDesktop={false}
                 isLoading={false}
             />
         </I18nProvider>
     )
-    return { ...view, onConfirm }
+    return { ...view, onConfirm, onRestartCodexDesktop }
 }
 
 describe('CodexSessionSyncDialog', () => {
@@ -147,4 +148,22 @@ describe('CodexSessionSyncDialog', () => {
 
         expect(onConfirm).toHaveBeenCalledWith(['codex-session-2'])
     })
+
+    it('keeps the restart control clear of the close button area', () => {
+        renderDialog()
+
+        const header = screen.getByTestId('codex-import-dialog-header')
+        expect(header).toHaveClass('flex')
+        expect(header).toHaveClass('pr-10')
+        expect(screen.getByRole('button', { name: 'Restart Codex client' })).toHaveClass('shrink-0')
+    })
+
+    it('restarts Codex Desktop from the header control', () => {
+        const onRestartCodexDesktop = vi.fn(async () => {})
+        renderDialog([], undefined, null, onRestartCodexDesktop)
+
+        fireEvent.click(screen.getByRole('button', { name: 'Restart Codex client' }))
+
+        expect(onRestartCodexDesktop).toHaveBeenCalledTimes(1)
+    })
 })
diff --git a/web/src/components/CodexSessionSyncDialog.tsx b/web/src/components/CodexSessionSyncDialog.tsx
index c7eefe60..3e7b2cd3 100644
--- a/web/src/components/CodexSessionSyncDialog.tsx
+++ b/web/src/components/CodexSessionSyncDialog.tsx
@@ -142,8 +142,8 @@ export function CodexSessionSyncDialog(props: {
     return (
         <Dialog open={isOpen} onOpenChange={(open) => !open && onClose()}>
             <DialogContent className="max-w-xl">
-                <div className="flex items-start justify-between gap-3">
-                    <DialogHeader className="flex-1 text-left">
+                <div className="flex items-start justify-between gap-3 pr-10" data-testid="codex-import-dialog-header">
+                    <DialogHeader className="min-w-0 flex-1 pr-0 text-left">
                         <DialogTitle>{t('codexSync.confirm.title')}</DialogTitle>
                         <DialogDescription className="mt-2">
                             {t('codexSync.confirm.description')}
@@ -153,12 +153,13 @@ export function CodexSessionSyncDialog(props: {
                         type="button"
                         variant="secondary"
                         size="sm"
+                        className="shrink-0"
                         onClick={() => void onRestartCodexDesktop()}
                         disabled={isRestartingCodexDesktop}
                         aria-label={t('codexSync.restart.tooltip')}
                         title={t('codexSync.restart.tooltip')}
                     >
-                        {/* 中文注释：把容易被误解为“刷新页面”的 icon 改成明确文字按钮，直接说明这是重启 Codex 客户端。 */}
+                        {/* 中文注释：右侧预留关闭按钮区域，重启按钮保持在标题行右侧但不压到关闭按钮。 */}
                         {isRestartingCodexDesktop ? t('codexSync.restart.confirming') : t('codexSync.restart.tooltip')}
                     </Button>
                 </div>