diff --git a/src/langbot/libs/dingtalk_api/a2ui.py b/src/langbot/libs/dingtalk_api/a2ui.py
index c2322da75..b5c939a1f 100644
--- a/src/langbot/libs/dingtalk_api/a2ui.py
+++ b/src/langbot/libs/dingtalk_api/a2ui.py
@@ -122,7 +122,7 @@ def text_card_components() -> list[dict[str, typing.Any]]:
         {
             'id': 'root',
             'component': 'Column',
-            'children': ['content', 'langbot-brand'],
+            'children': ['langbot-brand', 'content'],
             'gap': 8,
         },
         {
diff --git a/src/langbot/pkg/platform/adapters/dingtalk/interaction.py b/src/langbot/pkg/platform/adapters/dingtalk/interaction.py
index a36e89375..f97cc955c 100644
--- a/src/langbot/pkg/platform/adapters/dingtalk/interaction.py
+++ b/src/langbot/pkg/platform/adapters/dingtalk/interaction.py
@@ -150,7 +150,7 @@ def _build_interaction_messages(
         )
         children.append(button_id)
 
-    children.append('langbot-brand')
+    children.insert(0, 'langbot-brand')
     components.extend(brand_components())
     components.insert(0, {'id': 'root', 'component': 'Column', 'children': children, 'gap': 12})
     return {'form': form}, components, field_types
diff --git a/src/langbot/pkg/platform/sources/dingtalk.py b/src/langbot/pkg/platform/sources/dingtalk.py
index e1ca4f7f8..d984af805 100644
--- a/src/langbot/pkg/platform/sources/dingtalk.py
+++ b/src/langbot/pkg/platform/sources/dingtalk.py
@@ -520,7 +520,7 @@ def _dingtalk_a2ui_form(
                 ]
             )
             children.append(button_id)
-    children.append('langbot-brand')
+    children.insert(0, 'langbot-brand')
     components.extend(brand_components())
     return data, components
 
diff --git a/tests/unit_tests/platform/test_dingtalk_adapter.py b/tests/unit_tests/platform/test_dingtalk_adapter.py
index a5fb28382..02eba76d1 100644
--- a/tests/unit_tests/platform/test_dingtalk_adapter.py
+++ b/tests/unit_tests/platform/test_dingtalk_adapter.py
@@ -53,7 +53,7 @@ def test_dingtalk_dify_input_card_uses_a2ui_binding_and_required_check():
     assert field['value'] == {'path': '/form/value'}
     assert button['action']['event']['context']['input'] == {'path': '/form/value'}
     assert button['checks'][0]['condition']['call'] == 'required'
-    assert components[0]['children'][-1] == 'langbot-brand'
+    assert components[0]['children'][0] == 'langbot-brand'
     assert any(component['id'] == 'langbot-brand-link' for component in components)
 
 
diff --git a/tests/unit_tests/platform/test_dingtalk_api.py b/tests/unit_tests/platform/test_dingtalk_api.py
index 05a4eadcc..73ead0fd6 100644
--- a/tests/unit_tests/platform/test_dingtalk_api.py
+++ b/tests/unit_tests/platform/test_dingtalk_api.py
@@ -35,7 +35,7 @@ def test_text_card_keeps_brand_when_content_updates():
     components = create_text_card_messages('surface-id', 'hello')[2]['updateComponents']['components']
     by_id = {component['id']: component for component in components}
 
-    assert by_id['root']['children'] == ['content', 'langbot-brand']
+    assert by_id['root']['children'] == ['langbot-brand', 'content']
     assert by_id['langbot-brand']['children'] == ['langbot-brand-icon', 'langbot-brand-link']
     assert by_id['langbot-brand-icon']['url'] == 'https://langbot.app/logo-blue.png'
     assert by_id['langbot-brand-icon']['previewEnabled'] is False
diff --git a/tests/unit_tests/platform/test_dingtalk_eba_adapter.py b/tests/unit_tests/platform/test_dingtalk_eba_adapter.py
index 280a4f48e..916311f6a 100644
--- a/tests/unit_tests/platform/test_dingtalk_eba_adapter.py
+++ b/tests/unit_tests/platform/test_dingtalk_eba_adapter.py
@@ -342,7 +342,7 @@ async def test_dingtalk_interaction_delivery_and_callback_event():
     components = kwargs['a2ui_messages'][2]['updateComponents']['components']
     button = next(component for component in components if component['component'] == 'Button')
     assert button['action']['event']['context']['actionId'] == 'lbi:callback-token:a:0'
-    assert components[0]['children'][-1] == 'langbot-brand'
+    assert components[0]['children'][0] == 'langbot-brand'
     assert any(component['id'] == 'langbot-brand-link' for component in components)
 
     native = dingtalk_card_callback_event(