diff --git a/lib/web/web_settings_page_gateway.dart b/lib/web/web_settings_page_gateway.dart
index 36bd7a0d..89d68223 100644
--- a/lib/web/web_settings_page_gateway.dart
+++ b/lib/web/web_settings_page_gateway.dart
@@ -153,9 +153,9 @@ extension WebSettingsPageGatewayMixinInternal on WebSettingsPageStateInternal {
                                   () => directMessageInternal = result.message,
                                 );
                               },
-                        child: Text(appText('测试连接', 'Test')),
+                        child: Text(appText('测试连接', 'Test Connection')),
                       ),
-                      FilledButton.icon(
+                      FilledButton(
                         onPressed: controller.aiGatewayBusy
                             ? null
                             : () async {
@@ -195,7 +195,7 @@ extension WebSettingsPageGatewayMixinInternal on WebSettingsPageStateInternal {
                                   );
                                 }
                               },
-                        icon: controller.aiGatewayBusy
+                        child: controller.aiGatewayBusy
                             ? const SizedBox(
                                 width: 14,
                                 height: 14,
@@ -203,8 +203,7 @@ extension WebSettingsPageGatewayMixinInternal on WebSettingsPageStateInternal {
                                   strokeWidth: 2,
                                 ),
                               )
-                            : const Icon(Icons.play_circle_outline_rounded),
-                        label: Text(appText('保存并生效', 'Save & apply')),
+                            : Text(appText('保存并生效', 'Save & apply')),
                       ),
                     ],
                   ),
@@ -263,6 +262,7 @@ extension WebSettingsPageGatewayMixinInternal on WebSettingsPageStateInternal {
           const SizedBox(height: 16),
           ...controller.settingsDraft.externalAcpEndpoints.map(
             (profile) => Padding(
+              key: ValueKey('web-external-acp-card-${profile.providerKey}'),
               padding: const EdgeInsets.only(bottom: 12),
               child: buildExternalAcpProviderCardInternal(
                 context,
@@ -335,19 +335,21 @@ extension WebSettingsPageGatewayMixinInternal on WebSettingsPageStateInternal {
           ),
           const SizedBox(height: 12),
           TextField(
+            key: ValueKey('web-external-acp-label-${profile.providerKey}'),
             controller: labelController,
             decoration: InputDecoration(
               labelText: appText('显示名称', 'Display name'),
             ),
-            onChanged: (_) => stageExternalAcpDraftInternal(controller),
+            onChanged: (_) => setStateInternal(() {}),
           ),
           const SizedBox(height: 12),
           TextField(
+            key: ValueKey('web-external-acp-endpoint-${profile.providerKey}'),
             controller: endpointController,
             decoration: InputDecoration(
               labelText: appText('ACP Server Endpoint', 'ACP Server Endpoint'),
             ),
-            onChanged: (_) => stageExternalAcpDraftInternal(controller),
+            onChanged: (_) => setStateInternal(() {}),
           ),
           const SizedBox(height: 8),
           Text(
@@ -652,9 +654,9 @@ extension WebSettingsPageGatewayMixinInternal on WebSettingsPageStateInternal {
                           '${result.state.toUpperCase()} · ${result.message}',
                         );
                       },
-                child: Text(appText('Test', 'Test')),
+                child: Text(appText('测试连接', 'Test Connection')),
               ),
-              FilledButton.icon(
+              FilledButton(
                 onPressed: controller.relayBusy
                     ? null
                     : () async {
@@ -686,14 +688,13 @@ extension WebSettingsPageGatewayMixinInternal on WebSettingsPageStateInternal {
                           onMessageChanged('$error');
                         }
                       },
-                icon: controller.relayBusy
+                child: controller.relayBusy
                     ? const SizedBox(
                         width: 14,
                         height: 14,
                         child: CircularProgressIndicator(strokeWidth: 2),
                       )
-                    : const Icon(Icons.play_circle_outline_rounded),
-                label: Text(appText('保存并生效', 'Save & apply')),
+                    : Text(appText('保存并生效', 'Save & apply')),
               ),
             ],
           ),
diff --git a/test/features/web_settings_page_external_acp_suite.dart b/test/features/web_settings_page_external_acp_suite.dart
new file mode 100644
index 00000000..301694a1
--- /dev/null
+++ b/test/features/web_settings_page_external_acp_suite.dart
@@ -0,0 +1,65 @@
+@TestOn('vm')
+library;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:xworkmate/app/app_controller_web.dart' as web_app;
+import 'package:xworkmate/models/app_models.dart';
+import 'package:xworkmate/runtime/runtime_models.dart';
+import 'package:xworkmate/web/web_settings_page_core.dart';
+
+import '../test_support.dart';
+
+void main() {
+  testWidgets('Web external ACP editor supports continuous input', (
+    WidgetTester tester,
+  ) async {
+    SharedPreferences.setMockInitialValues(<String, Object>{});
+    final controller = web_app.AppController();
+    addTearDown(controller.dispose);
+    await tester.pump(const Duration(milliseconds: 100));
+    await tester.pumpAndSettle();
+    final customProfile = buildCustomExternalAcpEndpointProfile(
+      controller.settingsDraft.externalAcpEndpoints,
+      label: 'Initial Name',
+      endpoint: 'wss://initial.example.com/acp',
+    );
+    await controller.saveSettingsDraft(
+      controller.settingsDraft.copyWith(
+        externalAcpEndpoints: <ExternalAcpEndpointProfile>[
+          ...controller.settingsDraft.externalAcpEndpoints,
+          customProfile,
+        ],
+      ),
+    );
+    controller.setSettingsTab(SettingsTab.gateway);
+
+    await pumpPage(
+      tester,
+      child: SizedBox(
+        width: 1280,
+        height: 960,
+        child: WebSettingsPage(controller: controller, showSectionTabs: false),
+      ),
+      platform: TargetPlatform.macOS,
+    );
+
+    final labelField = find.byKey(
+      ValueKey('web-external-acp-label-${customProfile.providerKey}'),
+    );
+
+    expect(labelField, findsOneWidget);
+    expect(find.text('测试连接'), findsWidgets);
+    expect(find.text('保存并生效'), findsWidgets);
+
+    await tester.enterText(labelField, 'A');
+    await tester.pump();
+    await tester.enterText(labelField, 'AB');
+    await tester.pump();
+    await tester.enterText(labelField, 'ABC');
+    await tester.pump();
+
+    expect(find.text('ABC'), findsOneWidget);
+  });
+}