diff --git a/app/src/main/java/com/rainy/token/ui/settings/CredentialEditScreen.kt b/app/src/main/java/com/rainy/token/ui/settings/CredentialEditScreen.kt
index eb5ffba..e2a3b9a 100644
--- a/app/src/main/java/com/rainy/token/ui/settings/CredentialEditScreen.kt
+++ b/app/src/main/java/com/rainy/token/ui/settings/CredentialEditScreen.kt
@@ -993,6 +993,13 @@ private fun WorkBuddyCredentialForm(
         ) {
             Text(stringResource(R.string.action_mobile_browser_login))
         }
+    } else {
+        OutlinedButton(
+            onClick = onStartInAppLogin,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.action_login_in_app))
+        }
     }
     Text(
         text = stringResource(R.string.field_trae_region),
diff --git a/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginScreen.kt b/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginScreen.kt
index cf039a6..19102cc 100644
--- a/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginScreen.kt
+++ b/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginScreen.kt
@@ -37,7 +37,6 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.key
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.platform.LocalContext
@@ -78,18 +77,6 @@ fun WebViewLoginScreen(
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
     val snackbarHostState = remember { SnackbarHostState() }
     val context = LocalContext.current
-    // Trae/WorkBuddy 国际版：进入即用手机浏览器登录，回调/轮询结果自动回填到应用
-    val browserLoginService = service == ServiceType.TRAE || service == ServiceType.WORKBUDDY
-    val browserLoginRegion = region != null && region.equals("INTL", ignoreCase = true)
-    var autoBrowserStarted by rememberSaveable { mutableStateOf(false) }
-    LaunchedEffect(uiState.loginUrl, uiState.externalBrowserWaiting, uiState.loginSucceeded, autoBrowserStarted) {
-        if (browserLoginService && browserLoginRegion && !autoBrowserStarted &&
-            uiState.loginUrl.isNotBlank() && !uiState.externalBrowserWaiting && !uiState.loginSucceeded
-        ) {
-            autoBrowserStarted = true
-            viewModel.openExternalBrowser()
-        }
-    }
     var webViewGeneration by remember { mutableStateOf(0) }
     var pageLoading by remember { mutableStateOf(true) }
     var pageError by remember { mutableStateOf<String?>(null) }
diff --git a/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginViewModel.kt b/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginViewModel.kt
index 9010707..6656e7b 100644
--- a/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginViewModel.kt
+++ b/app/src/main/java/com/rainy/token/ui/webview/WebViewLoginViewModel.kt
@@ -152,6 +152,10 @@ class WebViewLoginViewModel @Inject constructor(
         val deviceId = traeDeviceId()
         val callbackUrl = buildTraeAuthUrl(LOGIN_WEBVIEW_CALLBACK_PORT)
         _uiState.update { it.copy(loginUrl = callbackUrl) }
+        if (region == "INTL") {
+            // 国际版登录页在系统浏览器完成，回调由本地服务器自动接收并回填
+            openExternalBrowser()
+        }
         return
     }
 
@@ -369,6 +373,8 @@ class WebViewLoginViewModel @Inject constructor(
                     .addHeader("X-Client-ID", "codebuddy-cli")
                     .addHeader("X-Client-Version", "2.143.1")
                     .addHeader("X-Product", "SaaS")
+                    .addHeader("Accept", "application/json, text/plain, */*")
+                    .addHeader("X-Requested-With", "XMLHttpRequest")
                     .addHeader("Content-Type", "application/json")
                     .post("{}".toRequestBody("application/json".toMediaTypeOrNull()))
                     .build()
@@ -397,6 +403,10 @@ class WebViewLoginViewModel @Inject constructor(
                 }
                 _uiState.update { it.copy(loginUrl = authURL) }
                 workBuddyPollingJob = viewModelScope.launch { pollWorkBuddyToken(state) }
+                if (region == "INTL") {
+                    // 国际版登录页在系统浏览器完成，凭据由轮询自动回填
+                    openExternalBrowser()
+                }
             } catch (_: Exception) {
                 _uiState.update {
                     it.copy(error = UiText.Resource(R.string.error_network_generic))
@@ -421,6 +431,8 @@ class WebViewLoginViewModel @Inject constructor(
                     .addHeader("X-Client-Version", "2.143.1")
                     .addHeader("X-Product", "SaaS")
                     .addHeader("X-No-Authorization", "1")
+                    .addHeader("Accept", "application/json, text/plain, */*")
+                    .addHeader("X-Requested-With", "XMLHttpRequest")
                     .get()
                     .build()
                 val body = withContext(Dispatchers.IO) {