diff --git a/Furious/Window/SingTUNSettingsDialog.py b/Furious/Window/SingTUNSettingsDialog.py
index 1bd3c233..c17fc4ed 100644
--- a/Furious/Window/SingTUNSettingsDialog.py
+++ b/Furious/Window/SingTUNSettingsDialog.py
@@ -355,10 +355,9 @@ class SingTUNSettingsDialog(AppQTransientDialog):
 
         layout.addWidget(self.errorLabel)
 
-        buttons = AppQDialogButtonBox(
-            AppQDialogButtonBox.StandardButton.Ok
-            | AppQDialogButtonBox.StandardButton.Cancel
-        )
+        buttons = AppQDialogButtonBox(QtCore.Qt.Orientation.Horizontal)
+        buttons.addButton(_('OK'), AppQDialogButtonBox.ButtonRole.AcceptRole)
+        buttons.addButton(_('Cancel'), AppQDialogButtonBox.ButtonRole.RejectRole)
 
         connectWeakly(buttons.accepted, self, 'accept')
         connectWeakly(buttons.rejected, self, 'reject')
diff --git a/tests/README.md b/tests/README.md
index aef24e60..662e0a0d 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -109,7 +109,7 @@ worker. Choose tests by the changed contract rather than by filename alone.
 | [test_python_compatibility.py](test_python_compatibility.py) | Once-only implementation selection without import-time metadata enumeration, exact affix removal, both metadata entry-point APIs and plugin discovery, distribution-version failures, real modern/legacy executor cancellation and statistics-owner shutdown, and profile import with an unsubscriptable collections ABC. Runs actual interpreter APIs alongside legacy-shape simulations; native-only cases skip on Python 3.8. The version matrix executes this module with the cold-import checks. |
 | [test_frozenlib.py](test_frozenlib.py) | Nested state guards, cleanup isolation, native peer destruction during connection/theme/translation/cleanup notifications, bounded caches/throttling, dual-stack probe selection, mocked proxy/DNS/routes/startup/session boundaries and failure handling. |
 | [test_native_tun_semantics.py](test_native_tun_semantics.py) | Xray/Hysteria2 runtime-copy TUN preservation/replacement, managed-TUN failures, download-test stripping, prevention of a second tun2socks owner. |
-| [test_sing_tun.py](test_sing_tun.py) | tun2socks engine default, saved engine choices and ownership-aware reconnect notices, sing-tun Go stack default, development-stack and congestion-control compatibility, independent backend settings and host defaults, selected-only snapshots, captured TUN log sources in both startup paths, staged settings and malformed storage, SOCKS authentication/UDP, harmless real spawn/status/stop, native readiness, cancellation, synchronous compatibility, mocked DNS/routing ownership including development IPv6 rule ordering and refused cleanup. |
+| [test_sing_tun.py](test_sing_tun.py) | tun2socks engine default, saved engine choices and ownership-aware reconnect notices, sing-tun Go stack default, development-stack and congestion-control compatibility, independent backend settings and host defaults, initial and live dialog-button translation, selected-only snapshots, captured TUN log sources in both startup paths, staged settings and malformed storage, SOCKS authentication/UDP, harmless real spawn/status/stop, native readiness, cancellation, synchronous compatibility, mocked DNS/routing ownership including development IPv6 rule ordering and refused cleanup. |
 | [test_subscription_sync.py](test_subscription_sync.py) | Group-local preparation/commit, stable duplicate identity, atomic failure, preservation of newer local metadata, rejection of changed source state. |
 | [test_subscription_manager.py](test_subscription_manager.py) | Stable request generations, provider metadata, batch/partial failures, timer policy, targeted updates, real Stop Updates input, worker responsiveness, cancellation and synchronous shutdown ownership. |
 | [test_subscription_scalability.py](test_subscription_scalability.py) | Deterministic 1/3/8-group preparation and commit with 1,500 profiles per group and bounded workers; uses the offline benchmark helper. |
diff --git a/tests/test_sing_tun.py b/tests/test_sing_tun.py
index 303a2d91..44058c6b 100644
--- a/tests/test_sing_tun.py
+++ b/tests/test_sing_tun.py
@@ -55,7 +55,7 @@ from Furious.Controllers.ConnectionController import (
     ConnectionController,
     ConnectionState,
 )
-from Furious.Qt import gettext as _
+from Furious.Qt import AppQDialogButtonBox, gettext as _
 from Furious.Service.RuntimeLease import RuntimeEventRouter, RuntimeLeaseState
 from Furious.Service.LogManager import LogManager, TUN_LOG_CATEGORY
 
@@ -600,6 +600,41 @@ class SingTUNUIAndStorageTest(unittest.TestCase):
         processQtEvents()
         self.assertFalse(isValid(dialog))
 
+    def testDialogButtonsUseInitialLanguageAndFollowLanguageChanges(self):
+        for initialLanguage in ('ZH', 'RU', 'EN'):
+            with self.subTest(language=initialLanguage), isolatedSettings():
+                AppSettings.set('Language', initialLanguage)
+
+                dialog = self._dialog({})
+                buttons = dialog.findChild(AppQDialogButtonBox)
+                buttonsByRole = {
+                    buttons.buttonRole(button): button for button in buttons.buttons()
+                }
+                cancelButton = buttonsByRole[buttons.ButtonRole.RejectRole]
+                okButton = buttonsByRole[buttons.ButtonRole.AcceptRole]
+
+                original = dialog.document()
+
+                dialog.open()
+                processQtEvents()
+
+                try:
+                    self.assertEqual(cancelButton.text(), _('Cancel'))
+                    self.assertEqual(okButton.text(), _('OK'))
+
+                    for language in ('EN', 'ZH', 'RU', 'EN'):
+                        AppSettings.set('Language', language)
+                        Mixins.QTranslatable.retranslateAll()
+                        processQtEvents()
+
+                        self.assertEqual(cancelButton.text(), _('Cancel'))
+                        self.assertEqual(okButton.text(), _('OK'))
+
+                        self.assertEqual(dialog.document(), original)
+                finally:
+                    dialog.reject()
+                    processQtEvents()
+
     def testUnsupportedSettingsMessagesAreLocalizedAndRetranslatable(self):
         """Reject unknown options with localized text without committing settings."""
         cases = (