diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 45d7e94..ae369d6 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -16,8 +16,8 @@ android {
         applicationId = "com.rainy.token"
         minSdk = 31
         targetSdk = 35
-        versionCode = 41
-        versionName = "1.7.21"
+        versionCode = 42
+        versionName = "1.7.22"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
diff --git a/app/src/main/java/com/rainy/token/ui/servicedetail/ServiceDetailScreen.kt b/app/src/main/java/com/rainy/token/ui/servicedetail/ServiceDetailScreen.kt
index c48e1a5..b68dadc 100644
--- a/app/src/main/java/com/rainy/token/ui/servicedetail/ServiceDetailScreen.kt
+++ b/app/src/main/java/com/rainy/token/ui/servicedetail/ServiceDetailScreen.kt
@@ -319,6 +319,7 @@ fun ServiceDetailScreen(
                     hasCredential = uiState.hasCredential,
                     isManualMode = isManualMode,
                     service = service,
+                    region = uiState.region,
                     triggerState = triggerState,
                     models = models,
                     selectedModel = selectedModel,
@@ -2105,6 +2106,7 @@ private fun ActionButtons(
     hasCredential: Boolean,
     isManualMode: Boolean,
     service: ServiceType,
+    region: String?,
     triggerState: TriggerState,
     models: List<String>,
     selectedModel: String?,
@@ -2225,6 +2227,18 @@ private fun ActionButtons(
             Spacer(modifier = Modifier.height(4.dp))
         }
 
+        // Trae/WorkBuddy 国际版：直接应用内登录（回调解析凭据）
+        if ((service == ServiceType.TRAE || service == ServiceType.WORKBUDDY) &&
+            region != null && region.equals("INTL", ignoreCase = true)
+        ) {
+            OutlinedButton(
+                onClick = onStartWebViewLogin,
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(stringResource(R.string.action_mobile_browser_login))
+            }
+        }
+
         if (hasCredential && !isManualMode) {
             Button(
                 onClick = onRefresh,
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 7448125..eb5ffba 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
@@ -816,27 +816,37 @@ private fun TraeCredentialForm(
         style = MaterialTheme.typography.bodySmall,
         color = MaterialTheme.colorScheme.outline
     )
-    OutlinedButton(
-        onClick = onStartInAppLogin,
-        modifier = Modifier.fillMaxWidth()
-    ) {
-        Text(stringResource(R.string.action_login_in_app))
+    if (region.uppercase() != "INTL") {
+        OutlinedButton(
+            onClick = onStartInAppLogin,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.action_login_in_app))
+        }
     }
-    OutlinedTextField(
-        value = callbackUrl,
-        onValueChange = onCallbackUrlChange,
-        label = { Text(stringResource(R.string.field_trae_callback_url)) },
-        supportingText = { Text(stringResource(R.string.field_trae_callback_hint)) },
-        minLines = 1,
-        maxLines = 3,
-        modifier = Modifier.fillMaxWidth()
-    )
-    OutlinedButton(
-        onClick = { onImportCallback(callbackUrl) },
-        enabled = callbackUrl.isNotBlank(),
-        modifier = Modifier.fillMaxWidth()
-    ) {
-        Text(stringResource(R.string.action_parse_callback))
+    if (region.uppercase() == "INTL") {
+        OutlinedButton(
+            onClick = onStartInAppLogin,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.action_mobile_browser_login))
+        }
+        OutlinedTextField(
+            value = callbackUrl,
+            onValueChange = onCallbackUrlChange,
+            label = { Text(stringResource(R.string.field_trae_callback_url)) },
+            supportingText = { Text(stringResource(R.string.field_trae_callback_hint)) },
+            minLines = 1,
+            maxLines = 3,
+            modifier = Modifier.fillMaxWidth()
+        )
+        OutlinedButton(
+            onClick = { onImportCallback(callbackUrl) },
+            enabled = callbackUrl.isNotBlank(),
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.action_parse_callback))
+        }
     }
     OutlinedTextField(
         value = jwt,
@@ -976,11 +986,13 @@ private fun WorkBuddyCredentialForm(
         style = MaterialTheme.typography.bodySmall,
         color = MaterialTheme.colorScheme.outline
     )
-    OutlinedButton(
-        onClick = onStartInAppLogin,
-        modifier = Modifier.fillMaxWidth()
-    ) {
-        Text(stringResource(R.string.action_login_in_app))
+    if (region.uppercase() == "INTL") {
+        OutlinedButton(
+            onClick = onStartInAppLogin,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.action_mobile_browser_login))
+        }
     }
     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 19102cc..cf039a6 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
@@ -37,6 +37,7 @@ 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
@@ -77,6 +78,18 @@ 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/res/values-b+zh+Hans/strings.xml b/app/src/main/res/values-b+zh+Hans/strings.xml
index 1fa83c9..d996177 100644
--- a/app/src/main/res/values-b+zh+Hans/strings.xml
+++ b/app/src/main/res/values-b+zh+Hans/strings.xml
@@ -19,6 +19,7 @@
     <string name="action_clear">清除</string>
     <string name="action_save">保存</string>
     <string name="action_login_in_app">软件内登录</string>
+    <string name="action_mobile_browser_login">手机浏览器登录</string>
     <string name="action_jump">跳转</string>
     <string name="action_prev_page">◀ 上一页</string>
     <string name="action_next_page">下一页 ▶</string>
diff --git a/app/src/main/res/values-b+zh+Hant/strings.xml b/app/src/main/res/values-b+zh+Hant/strings.xml
index 8f6dedd..40e61b3 100644
--- a/app/src/main/res/values-b+zh+Hant/strings.xml
+++ b/app/src/main/res/values-b+zh+Hant/strings.xml
@@ -19,6 +19,7 @@
     <string name="action_clear">清除</string>
     <string name="action_save">儲存</string>
     <string name="action_login_in_app">軟體內登入</string>
+    <string name="action_mobile_browser_login">手機瀏覽器登入</string>
     <string name="action_jump">跳轉</string>
     <string name="action_prev_page">◀ 上一頁</string>
     <string name="action_next_page">下一頁 ▶</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index fd8f264..59f6e38 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -23,6 +23,7 @@
     <string name="action_clear">Clear</string>
     <string name="action_save">Save</string>
     <string name="action_login_in_app">Sign in within app</string>
+    <string name="action_mobile_browser_login">Sign in via mobile browser</string>
     <string name="action_jump">Go</string>
     <string name="action_prev_page">◀ Prev</string>
     <string name="action_next_page">Next ▶</string>