diff --git a/acestep/ui/gradio/__init__.py b/acestep/ui/gradio/__init__.py
index 76c558ef..cbb47f0e 100644
--- a/acestep/ui/gradio/__init__.py
+++ b/acestep/ui/gradio/__init__.py
@@ -1,2 +1,16 @@
 """Gradio package: web UI composition for ACE-Step controls and outputs."""
-from acestep.ui.gradio.interfaces import create_gradio_interface  # noqa: F401
+
+from __future__ import annotations
+
+from typing import Any
+
+
+def create_gradio_interface(*args: Any, **kwargs: Any) -> Any:
+    """Create the Gradio interface using a lazy import.
+
+    This keeps package imports lightweight for environments that run unit tests
+    without Gradio installed, while preserving the existing public facade.
+    """
+    from acestep.ui.gradio.interfaces import create_gradio_interface as _create_gradio_interface
+
+    return _create_gradio_interface(*args, **kwargs)
diff --git a/acestep/ui/gradio/events/wiring/__init__.py b/acestep/ui/gradio/events/wiring/__init__.py
index 1953fe67..8e5e0909 100644
--- a/acestep/ui/gradio/events/wiring/__init__.py
+++ b/acestep/ui/gradio/events/wiring/__init__.py
@@ -4,6 +4,10 @@
 event wiring facade in ``acestep.ui.gradio.events``.
 """
 
+from __future__ import annotations
+
+from typing import Any
+
 from .context import (
     GenerationWiringContext,
     TrainingWiringContext,
@@ -11,23 +15,98 @@
     build_auto_checkbox_outputs,
     build_mode_ui_outputs,
 )
-from .generation_metadata_wiring import register_generation_metadata_handlers
-from .generation_metadata_file_wiring import register_generation_metadata_file_handlers
-from .generation_batch_navigation_wiring import register_generation_batch_navigation_handlers
-from .generation_mode_wiring import register_generation_mode_handlers
-from .generation_run_wiring import register_generation_run_handlers
-from .results_aux_wiring import register_results_aux_handlers
-from .results_display_wiring import (
-    register_results_restore_and_lrc_handlers,
-    register_results_save_button_handlers,
-)
-from .generation_service_wiring import register_generation_service_handlers
-from .training_dataset_builder_wiring import register_training_dataset_builder_handlers
-from .training_dataset_preprocess_wiring import (
-    register_training_dataset_load_handler,
-    register_training_preprocess_handler,
-)
-from .training_run_wiring import register_training_run_handlers
+
+
+def register_generation_metadata_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register metadata-related generation handlers via lazy import."""
+    from .generation_metadata_wiring import register_generation_metadata_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_generation_metadata_file_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register generation metadata file handlers via lazy import."""
+    from .generation_metadata_file_wiring import register_generation_metadata_file_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_generation_batch_navigation_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register generation batch-navigation handlers via lazy import."""
+    from .generation_batch_navigation_wiring import register_generation_batch_navigation_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_generation_mode_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register generation mode handlers via lazy import."""
+    from .generation_mode_wiring import register_generation_mode_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_generation_run_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register generation run handlers via lazy import."""
+    from .generation_run_wiring import register_generation_run_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_results_aux_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register results auxiliary handlers via lazy import."""
+    from .results_aux_wiring import register_results_aux_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_results_restore_and_lrc_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register results restore/LRC handlers via lazy import."""
+    from .results_display_wiring import register_results_restore_and_lrc_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_results_save_button_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register results save-button handlers via lazy import."""
+    from .results_display_wiring import register_results_save_button_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_generation_service_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register generation service handlers via lazy import."""
+    from .generation_service_wiring import register_generation_service_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_training_dataset_builder_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register training dataset builder handlers via lazy import."""
+    from .training_dataset_builder_wiring import register_training_dataset_builder_handlers as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_training_dataset_load_handler(*args: Any, **kwargs: Any) -> Any:
+    """Register training dataset load handlers via lazy import."""
+    from .training_dataset_preprocess_wiring import register_training_dataset_load_handler as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_training_preprocess_handler(*args: Any, **kwargs: Any) -> Any:
+    """Register training preprocess handlers via lazy import."""
+    from .training_dataset_preprocess_wiring import register_training_preprocess_handler as _register
+
+    return _register(*args, **kwargs)
+
+
+def register_training_run_handlers(*args: Any, **kwargs: Any) -> Any:
+    """Register training run handlers via lazy import."""
+    from .training_run_wiring import register_training_run_handlers as _register
+
+    return _register(*args, **kwargs)
+
 
 __all__ = [
     "GenerationWiringContext",
diff --git a/acestep/ui/gradio/gradio_package_init_test.py b/acestep/ui/gradio/gradio_package_init_test.py
new file mode 100644
index 00000000..1631f981
--- /dev/null
+++ b/acestep/ui/gradio/gradio_package_init_test.py
@@ -0,0 +1,17 @@
+"""Tests for lazy-import behavior in the Gradio package facade."""
+
+import importlib
+import unittest
+
+
+class GradioPackageInitTests(unittest.TestCase):
+    """Verify `acestep.ui.gradio` imports without requiring Gradio at import time."""
+
+    def test_package_import_exposes_interface_factory_without_gradio_dependency(self):
+        """Importing package should succeed and expose the create facade callable."""
+        module = importlib.import_module("acestep.ui.gradio")
+        self.assertTrue(callable(module.create_gradio_interface))
+
+
+if __name__ == "__main__":
+    unittest.main()