diff --git a/tests/unit/test_config_schemas_domain.py b/tests/unit/test_config_schemas_domain.py
new file mode 100755
index 000000000..3140d810b
--- /dev/null
+++ b/tests/unit/test_config_schemas_domain.py
@@ -0,0 +1,815 @@
+"""
+config_schemas 配置结构定义单元测试
+
+覆盖：
+- 4个枚举类型
+- 10个Pydantic模型
+- 2个normalize工具函数
+- 2个默认值常量
+"""
+
+import copy
+
+import pytest
+from pydantic import ValidationError
+
+from packages.domain.config_schemas import (
+    DEFAULT_EDIT_PLAN_CONFIG,
+    DEFAULT_EDIT_TEMPLATE_CONFIG,
+    BGMConfig,
+    BGMSource,
+    CoverConfig,
+    CoverType,
+    EditPlanConfigSchema,
+    EditTemplateConfigSchema,
+    ExportConfig,
+    FilterConfig,
+    ShadowConfig,
+    StrokeConfig,
+    SubtitleConfig,
+    TextAnimation,
+    TextPosition,
+    TitleConfig,
+    normalize_plan_config,
+    normalize_template_config,
+)
+
+# ── 枚举测试 ──────────────────────────────────────────────────────────────────
+
+
+class TestCoverType:
+    """CoverType 枚举测试"""
+
+    def test_all_types_exist(self):
+        assert CoverType.AI_FRAME == "ai_frame"
+        assert CoverType.MANUAL == "manual"
+        assert CoverType.UPLOAD == "upload"
+        assert CoverType.AI_REGENERATE == "ai_regenerate"
+
+    def test_total_count(self):
+        assert len(CoverType) == 4
+
+    def test_is_string_enum(self):
+        for t in CoverType:
+            assert isinstance(t.value, str)
+            assert isinstance(t, str)
+
+    def test_string_comparison(self):
+        assert CoverType.AI_FRAME == "ai_frame"
+        assert CoverType.UPLOAD != "manual"
+
+
+class TestTextPosition:
+    """TextPosition 枚举测试"""
+
+    def test_all_positions_exist(self):
+        assert TextPosition.TOP == "top"
+        assert TextPosition.CENTER == "center"
+        assert TextPosition.BOTTOM == "bottom"
+
+    def test_total_count(self):
+        assert len(TextPosition) == 3
+
+    def test_is_string_enum(self):
+        for p in TextPosition:
+            assert isinstance(p.value, str)
+            assert isinstance(p, str)
+
+
+class TestTextAnimation:
+    """TextAnimation 枚举测试"""
+
+    def test_all_animations_exist(self):
+        assert TextAnimation.NONE == "none"
+        assert TextAnimation.FADE_IN == "fade_in"
+        assert TextAnimation.SLIDE_UP == "slide_up"
+        assert TextAnimation.SLIDE_DOWN == "slide_down"
+        assert TextAnimation.SCALE == "scale"
+
+    def test_total_count(self):
+        assert len(TextAnimation) == 5
+
+    def test_is_string_enum(self):
+        for a in TextAnimation:
+            assert isinstance(a.value, str)
+            assert isinstance(a, str)
+
+
+class TestBGMSource:
+    """BGMSource 枚举测试"""
+
+    def test_all_sources_exist(self):
+        assert BGMSource.LIBRARY == "library"
+        assert BGMSource.UPLOAD == "upload"
+        assert BGMSource.AI_RECOMMEND == "ai_recommend"
+
+    def test_total_count(self):
+        assert len(BGMSource) == 3
+
+    def test_is_string_enum(self):
+        for s in BGMSource:
+            assert isinstance(s.value, str)
+            assert isinstance(s, str)
+
+
+# ── 子结构模型测试 ────────────────────────────────────────────────────────────
+
+
+class TestStrokeConfig:
+    """StrokeConfig 描边配置测试"""
+
+    def test_default_values(self):
+        config = StrokeConfig()
+        assert config.enabled is False
+        assert config.color == "#000000"
+        assert config.width == 1
+
+    def test_custom_values(self):
+        config = StrokeConfig(enabled=True, color="#ff0000", width=5)
+        assert config.enabled is True
+        assert config.color == "#ff0000"
+        assert config.width == 5
+
+    def test_width_min_boundary(self):
+        config = StrokeConfig(width=1)
+        assert config.width == 1
+
+    def test_width_max_boundary(self):
+        config = StrokeConfig(width=10)
+        assert config.width == 10
+
+    def test_width_below_min_raises(self):
+        with pytest.raises(ValidationError):
+            StrokeConfig(width=0)
+
+    def test_width_above_max_raises(self):
+        with pytest.raises(ValidationError):
+            StrokeConfig(width=11)
+
+
+class TestShadowConfig:
+    """ShadowConfig 阴影配置测试"""
+
+    def test_default_values(self):
+        config = ShadowConfig()
+        assert config.enabled is False
+        assert config.blur == 4
+        assert config.offset_x == 2
+        assert config.offset_y == 2
+
+    def test_custom_values(self):
+        config = ShadowConfig(enabled=True, blur=10, offset_x=5, offset_y=3)
+        assert config.enabled is True
+        assert config.blur == 10
+        assert config.offset_x == 5
+        assert config.offset_y == 3
+
+    def test_blur_min_boundary(self):
+        config = ShadowConfig(blur=0)
+        assert config.blur == 0
+
+    def test_blur_max_boundary(self):
+        config = ShadowConfig(blur=20)
+        assert config.blur == 20
+
+    def test_blur_above_max_raises(self):
+        with pytest.raises(ValidationError):
+            ShadowConfig(blur=21)
+
+    def test_negative_offset(self):
+        config = ShadowConfig(offset_x=-3, offset_y=-2)
+        assert config.offset_x == -3
+        assert config.offset_y == -2
+
+
+class TestCoverConfig:
+    """CoverConfig 封面配置测试"""
+
+    def test_default_values(self):
+        config = CoverConfig()
+        assert config.type == CoverType.AI_FRAME
+        assert config.image_url == ""
+        assert config.frame_time is None
+
+    def test_custom_values(self):
+        config = CoverConfig(type=CoverType.MANUAL, image_url="http://img/1.jpg", frame_time=5.5)
+        assert config.type == CoverType.MANUAL
+        assert config.image_url == "http://img/1.jpg"
+        assert config.frame_time == 5.5
+
+    def test_frame_time_min_boundary(self):
+        config = CoverConfig(frame_time=0.0)
+        assert config.frame_time == 0.0
+
+    def test_frame_time_negative_raises(self):
+        with pytest.raises(ValidationError):
+            CoverConfig(frame_time=-1.0)
+
+    def test_string_type_conversion(self):
+        """字符串枚举值自动转换"""
+        config = CoverConfig(type="upload")
+        assert config.type == CoverType.UPLOAD
+
+
+class TestTitleConfig:
+    """TitleConfig 标题配置测试"""
+
+    def test_default_values(self):
+        config = TitleConfig()
+        assert config.enabled is True
+        assert config.ai_auto is True
+        assert config.text == ""
+        assert config.position == TextPosition.TOP
+        assert config.font == "思源黑体"
+        assert config.color == "#ffffff"
+        assert config.size == 48
+        assert config.bold is True
+        assert config.italic is False
+        assert isinstance(config.stroke, StrokeConfig)
+        assert isinstance(config.shadow, ShadowConfig)
+
+    def test_custom_values(self):
+        config = TitleConfig(
+            enabled=False,
+            ai_auto=False,
+            text="测试标题",
+            position=TextPosition.BOTTOM,
+            font="微软雅黑",
+            color="#000000",
+            size=72,
+            bold=False,
+            italic=True,
+        )
+        assert config.enabled is False
+        assert config.ai_auto is False
+        assert config.text == "测试标题"
+        assert config.position == TextPosition.BOTTOM
+        assert config.size == 72
+
+    def test_size_min_boundary(self):
+        config = TitleConfig(size=12)
+        assert config.size == 12
+
+    def test_size_max_boundary(self):
+        config = TitleConfig(size=120)
+        assert config.size == 120
+
+    def test_size_below_min_raises(self):
+        with pytest.raises(ValidationError):
+            TitleConfig(size=11)
+
+    def test_size_above_max_raises(self):
+        with pytest.raises(ValidationError):
+            TitleConfig(size=121)
+
+    def test_nested_stroke_config(self):
+        config = TitleConfig(stroke={"enabled": True, "width": 3})
+        assert config.stroke.enabled is True
+        assert config.stroke.width == 3
+
+    def test_nested_shadow_config(self):
+        config = TitleConfig(shadow={"enabled": True, "blur": 8})
+        assert config.shadow.enabled is True
+        assert config.shadow.blur == 8
+
+
+class TestSubtitleConfig:
+    """SubtitleConfig 字幕配置测试"""
+
+    def test_default_values(self):
+        config = SubtitleConfig()
+        assert config.enabled is True
+        assert config.position == TextPosition.BOTTOM
+        assert config.font == "思源黑体"
+        assert config.color == "#ffffff"
+        assert config.size == 24
+        assert config.animation == TextAnimation.FADE_IN
+        assert config.auto_generated is False
+        assert config.language == ""
+        assert config.max_chars_per_line == 20
+        assert config.min_chars_per_segment == 8
+
+    def test_custom_values(self):
+        config = SubtitleConfig(
+            enabled=False,
+            position=TextPosition.TOP,
+            size=36,
+            animation=TextAnimation.SLIDE_UP,
+            auto_generated=True,
+            language="zh",
+            max_chars_per_line=30,
+            min_chars_per_segment=10,
+        )
+        assert config.enabled is False
+        assert config.position == TextPosition.TOP
+        assert config.animation == TextAnimation.SLIDE_UP
+        assert config.auto_generated is True
+        assert config.language == "zh"
+
+    def test_size_min_boundary(self):
+        config = SubtitleConfig(size=12)
+        assert config.size == 12
+
+    def test_size_max_boundary(self):
+        config = SubtitleConfig(size=60)
+        assert config.size == 60
+
+    def test_size_below_min_raises(self):
+        with pytest.raises(ValidationError):
+            SubtitleConfig(size=11)
+
+    def test_max_chars_min_boundary(self):
+        config = SubtitleConfig(max_chars_per_line=8)
+        assert config.max_chars_per_line == 8
+
+    def test_max_chars_max_boundary(self):
+        config = SubtitleConfig(max_chars_per_line=40)
+        assert config.max_chars_per_line == 40
+
+    def test_min_chars_min_boundary(self):
+        config = SubtitleConfig(min_chars_per_segment=2)
+        assert config.min_chars_per_segment == 2
+
+    def test_min_chars_max_boundary(self):
+        config = SubtitleConfig(min_chars_per_segment=20)
+        assert config.min_chars_per_segment == 20
+
+
+class TestBGMConfig:
+    """BGMConfig 背景音乐配置测试"""
+
+    def test_default_values(self):
+        config = BGMConfig()
+        assert config.enabled is False
+        assert config.source == BGMSource.LIBRARY
+        assert config.asset_id == ""
+        assert config.preset_id == ""
+        assert config.audio_url == ""
+        assert config.volume == 0.3
+        assert config.fade_in == 0.0
+        assert config.fade_out == 0.0
+        assert config.loop_enabled is True
+        assert config.sidechain_enabled is False
+        assert config.sidechain_ratio == 0.3
+        assert config.sidechain_attack == 0.02
+        assert config.sidechain_release == 0.5
+        assert config.sidechain_threshold == -25.0
+
+    def test_custom_values(self):
+        config = BGMConfig(
+            enabled=True,
+            source=BGMSource.UPLOAD,
+            asset_id="bgm_001",
+            volume=0.5,
+            fade_in=2.0,
+            fade_out=3.0,
+            loop_enabled=False,
+            sidechain_enabled=True,
+            sidechain_ratio=0.5,
+            sidechain_attack=0.05,
+            sidechain_release=1.0,
+            sidechain_threshold=-20.0,
+        )
+        assert config.enabled is True
+        assert config.source == BGMSource.UPLOAD
+        assert config.asset_id == "bgm_001"
+        assert config.volume == 0.5
+        assert config.loop_enabled is False
+        assert config.sidechain_enabled is True
+        assert config.sidechain_ratio == 0.5
+
+    def test_volume_min_boundary(self):
+        config = BGMConfig(volume=0.0)
+        assert config.volume == 0.0
+
+    def test_volume_max_boundary(self):
+        config = BGMConfig(volume=1.0)
+        assert config.volume == 1.0
+
+    def test_volume_above_max_raises(self):
+        with pytest.raises(ValidationError):
+            BGMConfig(volume=1.1)
+
+    def test_fade_in_max_boundary(self):
+        config = BGMConfig(fade_in=30.0)
+        assert config.fade_in == 30.0
+
+    def test_fade_in_above_max_raises(self):
+        with pytest.raises(ValidationError):
+            BGMConfig(fade_in=31.0)
+
+    def test_sidechain_ratio_range(self):
+        config = BGMConfig(sidechain_ratio=0.0)
+        assert config.sidechain_ratio == 0.0
+        config = BGMConfig(sidechain_ratio=1.0)
+        assert config.sidechain_ratio == 1.0
+
+    def test_sidechain_attack_min(self):
+        config = BGMConfig(sidechain_attack=0.001)
+        assert config.sidechain_attack == 0.001
+
+    def test_sidechain_attack_below_min_raises(self):
+        with pytest.raises(ValidationError):
+            BGMConfig(sidechain_attack=0.0001)
+
+    def test_sidechain_threshold_range(self):
+        config = BGMConfig(sidechain_threshold=-60.0)
+        assert config.sidechain_threshold == -60.0
+        config = BGMConfig(sidechain_threshold=0.0)
+        assert config.sidechain_threshold == 0.0
+
+    def test_sidechain_threshold_out_of_range_raises(self):
+        with pytest.raises(ValidationError):
+            BGMConfig(sidechain_threshold=-61.0)
+        with pytest.raises(ValidationError):
+            BGMConfig(sidechain_threshold=1.0)
+
+
+class TestExportConfig:
+    """ExportConfig 导出配置测试"""
+
+    def test_default_values(self):
+        config = ExportConfig()
+        assert config.resolution == "1080x1920"
+        assert config.fps == 30
+        assert config.video_bitrate == 8000
+        assert config.audio_bitrate == 128
+        assert config.format == "mp4"
+        assert config.quality_preset == "balanced"
+        assert config.watermark_enabled is False
+        assert config.watermark_text == ""
+
+    def test_custom_values(self):
+        config = ExportConfig(
+            resolution="2160x3840",
+            fps=60,
+            video_bitrate=20000,
+            audio_bitrate=320,
+            format="mov",
+            quality_preset="best",
+            watermark_enabled=True,
+            watermark_text="测试水印",
+        )
+        assert config.resolution == "2160x3840"
+        assert config.fps == 60
+        assert config.video_bitrate == 20000
+        assert config.format == "mov"
+
+    def test_fps_min_boundary(self):
+        config = ExportConfig(fps=15)
+        assert config.fps == 15
+
+    def test_fps_max_boundary(self):
+        config = ExportConfig(fps=60)
+        assert config.fps == 60
+
+    def test_fps_below_min_raises(self):
+        with pytest.raises(ValidationError):
+            ExportConfig(fps=14)
+
+    def test_fps_above_max_raises(self):
+        with pytest.raises(ValidationError):
+            ExportConfig(fps=61)
+
+    def test_video_bitrate_range(self):
+        config = ExportConfig(video_bitrate=1000)
+        assert config.video_bitrate == 1000
+        config = ExportConfig(video_bitrate=20000)
+        assert config.video_bitrate == 20000
+
+    def test_audio_bitrate_range(self):
+        config = ExportConfig(audio_bitrate=64)
+        assert config.audio_bitrate == 64
+        config = ExportConfig(audio_bitrate=320)
+        assert config.audio_bitrate == 320
+
+
+class TestFilterConfig:
+    """FilterConfig 滤镜配置测试"""
+
+    def test_default_values(self):
+        config = FilterConfig()
+        assert config.enabled is False
+        assert config.preset_id == "filter_none"
+        assert config.intensity == 100
+        assert config.brightness == 0.0
+        assert config.contrast == 1.0
+        assert config.saturation == 1.0
+        assert config.warmth == 0.0
+
+    def test_custom_values(self):
+        config = FilterConfig(
+            enabled=True,
+            preset_id="filter_vintage",
+            intensity=50,
+            brightness=0.5,
+            contrast=1.5,
+            saturation=2.0,
+            warmth=0.3,
+        )
+        assert config.enabled is True
+        assert config.preset_id == "filter_vintage"
+        assert config.intensity == 50
+        assert config.brightness == 0.5
+
+    def test_intensity_min_boundary(self):
+        config = FilterConfig(intensity=0)
+        assert config.intensity == 0
+
+    def test_intensity_max_boundary(self):
+        config = FilterConfig(intensity=100)
+        assert config.intensity == 100
+
+    def test_intensity_out_of_range_raises(self):
+        with pytest.raises(ValidationError):
+            FilterConfig(intensity=-1)
+        with pytest.raises(ValidationError):
+            FilterConfig(intensity=101)
+
+    def test_brightness_range(self):
+        config = FilterConfig(brightness=-1.0)
+        assert config.brightness == -1.0
+        config = FilterConfig(brightness=1.0)
+        assert config.brightness == 1.0
+
+    def test_contrast_range(self):
+        config = FilterConfig(contrast=0.0)
+        assert config.contrast == 0.0
+        config = FilterConfig(contrast=2.0)
+        assert config.contrast == 2.0
+
+    def test_saturation_range(self):
+        config = FilterConfig(saturation=0.0)
+        assert config.saturation == 0.0
+        config = FilterConfig(saturation=3.0)
+        assert config.saturation == 3.0
+
+    def test_warmth_range(self):
+        config = FilterConfig(warmth=-1.0)
+        assert config.warmth == -1.0
+        config = FilterConfig(warmth=1.0)
+        assert config.warmth == 1.0
+
+    def test_brightness_out_of_range_raises(self):
+        with pytest.raises(ValidationError):
+            FilterConfig(brightness=-1.1)
+        with pytest.raises(ValidationError):
+            FilterConfig(brightness=1.1)
+
+
+# ── 完整 config 模型测试 ─────────────────────────────────────────────────────
+
+
+class TestEditPlanConfigSchema:
+    """EditPlanConfigSchema 完整计划配置测试"""
+
+    def test_default_values(self):
+        config = EditPlanConfigSchema()
+        assert isinstance(config.cover, CoverConfig)
+        assert isinstance(config.title, TitleConfig)
+        assert isinstance(config.subtitle, SubtitleConfig)
+        assert isinstance(config.bgm, BGMConfig)
+        assert isinstance(config.export, ExportConfig)
+        assert isinstance(config.filter, FilterConfig)
+        assert config.editing_mode == "one_take"
+
+    def test_partial_update(self):
+        """只传部分字段，其余保持默认"""
+        config = EditPlanConfigSchema(
+            title={"enabled": False},
+            bgm={"enabled": True, "volume": 0.5},
+            editing_mode="pip",
+        )
+        assert config.title.enabled is False
+        assert config.bgm.enabled is True
+        assert config.bgm.volume == 0.5
+        assert config.editing_mode == "pip"
+        # 其他字段保持默认
+        assert config.cover.type == CoverType.AI_FRAME
+        assert config.subtitle.enabled is True
+
+    def test_nested_model_preservation(self):
+        """嵌套模型完整可用"""
+        config = EditPlanConfigSchema()
+        assert config.title.stroke.enabled is False
+        assert config.title.shadow.blur == 4
+        assert config.bgm.sidechain_ratio == 0.3
+
+
+class TestEditTemplateConfigSchema:
+    """EditTemplateConfigSchema 模板配置测试"""
+
+    def test_default_values(self):
+        config = EditTemplateConfigSchema()
+        assert isinstance(config.cover, CoverConfig)
+        assert isinstance(config.title, TitleConfig)
+        assert isinstance(config.subtitle, SubtitleConfig)
+        assert isinstance(config.bgm, BGMConfig)
+        assert isinstance(config.export, ExportConfig)
+        assert isinstance(config.filter, FilterConfig)
+        assert config.editing_mode == "one_take"
+        assert config.transition_enabled is True
+
+    def test_transition_enabled_false(self):
+        config = EditTemplateConfigSchema(transition_enabled=False)
+        assert config.transition_enabled is False
+
+    def test_partial_update(self):
+        config = EditTemplateConfigSchema(
+            filter={"enabled": True, "preset_id": "filter_cinematic"},
+            transition_enabled=False,
+            editing_mode="voice_over",
+        )
+        assert config.filter.enabled is True
+        assert config.filter.preset_id == "filter_cinematic"
+        assert config.transition_enabled is False
+        assert config.editing_mode == "voice_over"
+
+
+# ── 默认值常量测试 ────────────────────────────────────────────────────────────
+
+
+class TestDefaultConfigs:
+    """默认值常量测试"""
+
+    def test_plan_config_structure(self):
+        """DEFAULT_EDIT_PLAN_CONFIG 结构完整"""
+        assert "cover" in DEFAULT_EDIT_PLAN_CONFIG
+        assert "title" in DEFAULT_EDIT_PLAN_CONFIG
+        assert "subtitle" in DEFAULT_EDIT_PLAN_CONFIG
+        assert "bgm" in DEFAULT_EDIT_PLAN_CONFIG
+        assert "export" in DEFAULT_EDIT_PLAN_CONFIG
+        assert "filter" in DEFAULT_EDIT_PLAN_CONFIG
+        assert "editing_mode" in DEFAULT_EDIT_PLAN_CONFIG
+
+    def test_template_config_has_transition(self):
+        """模板配置比计划配置多一个 transition_enabled"""
+        assert "transition_enabled" in DEFAULT_EDIT_TEMPLATE_CONFIG
+        assert DEFAULT_EDIT_TEMPLATE_CONFIG["transition_enabled"] is True
+
+    def test_template_extends_plan(self):
+        """模板配置是计划配置的超集"""
+        for key in DEFAULT_EDIT_PLAN_CONFIG:
+            assert key in DEFAULT_EDIT_TEMPLATE_CONFIG
+
+    def test_defaults_are_deep_copy_safe(self):
+        """修改默认值不会影响常量本身"""
+        original = copy.deepcopy(DEFAULT_EDIT_PLAN_CONFIG)
+        config = EditPlanConfigSchema()
+        config.title.text = "modified"
+        assert DEFAULT_EDIT_PLAN_CONFIG == original
+
+
+# ── normalize 函数测试 ────────────────────────────────────────────────────────
+
+
+class TestNormalizePlanConfig:
+    """normalize_plan_config 函数测试"""
+
+    def test_none_returns_default(self):
+        result = normalize_plan_config(None)
+        assert result == DEFAULT_EDIT_PLAN_CONFIG
+        # 确保是深拷贝
+        result["cover"]["type"] = "manual"
+        assert DEFAULT_EDIT_PLAN_CONFIG["cover"]["type"] == "ai_frame"
+
+    def test_empty_dict_returns_default(self):
+        result = normalize_plan_config({})
+        assert result == DEFAULT_EDIT_PLAN_CONFIG
+
+    def test_partial_cover_update(self):
+        raw = {"cover": {"type": "manual", "frame_time": 5.0}}
+        result = normalize_plan_config(raw)
+        assert result["cover"]["type"] == "manual"
+        assert result["cover"]["frame_time"] == 5.0
+        # 其他字段保留默认
+        assert result["cover"]["image_url"] == ""
+
+    def test_partial_title_update(self):
+        raw = {"title": {"enabled": False, "text": "自定义标题"}}
+        result = normalize_plan_config(raw)
+        assert result["title"]["enabled"] is False
+        assert result["title"]["text"] == "自定义标题"
+        assert result["title"]["size"] == 48  # 默认值保留
+
+    def test_partial_subtitle_update(self):
+        raw = {"subtitle": {"enabled": False, "size": 32}}
+        result = normalize_plan_config(raw)
+        assert result["subtitle"]["enabled"] is False
+        assert result["subtitle"]["size"] == 32
+
+    def test_partial_bgm_update(self):
+        raw = {"bgm": {"enabled": True, "volume": 0.8}}
+        result = normalize_plan_config(raw)
+        assert result["bgm"]["enabled"] is True
+        assert result["bgm"]["volume"] == 0.8
+
+    def test_editing_mode_update(self):
+        raw = {"editing_mode": "pip"}
+        result = normalize_plan_config(raw)
+        assert result["editing_mode"] == "pip"
+
+    def test_non_standard_fields_preserved(self):
+        """非标准字段会被保留（透传）"""
+        raw = {"generation_task_id": "task_123", "custom_field": "value"}
+        result = normalize_plan_config(raw)
+        assert result["generation_task_id"] == "task_123"
+        assert result["custom_field"] == "value"
+
+    def test_full_update(self):
+        """多个字段同时更新"""
+        raw = {
+            "cover": {"type": "upload", "image_url": "http://img.jpg"},
+            "title": {"enabled": False},
+            "bgm": {"enabled": True, "volume": 0.5},
+            "editing_mode": "voice_pip",
+            "extra_key": "extra_val",
+        }
+        result = normalize_plan_config(raw)
+        assert result["cover"]["type"] == "upload"
+        assert result["title"]["enabled"] is False
+        assert result["bgm"]["enabled"] is True
+        assert result["bgm"]["volume"] == 0.5
+        assert result["editing_mode"] == "voice_pip"
+        assert result["extra_key"] == "extra_val"
+
+    def test_non_dict_section_ignored(self):
+        """section不是dict时忽略"""
+        raw = {"cover": "not_a_dict"}
+        result = normalize_plan_config(raw)
+        # cover 应保持默认值
+        assert result["cover"]["type"] == "ai_frame"
+        # 但 cover 字段本身作为非标准字段保留
+        # 不对，看实现：只有当 isinstance(raw[section_key], dict) 时才 update
+        # 非dict的section会作为非标准字段保留吗？看实现：
+        # section_key in raw and isinstance -> update
+        # 然后遍历所有key，不在标准列表中的才会保留
+        # cover 在标准列表中，所以不会被保留为非标准字段
+        # 所以结果应该是默认的cover配置
+        assert isinstance(result["cover"], dict)
+        assert result["cover"]["type"] == "ai_frame"
+
+    def test_editing_mode_non_string_ignored(self):
+        """editing_mode不是字符串时忽略"""
+        raw = {"editing_mode": 123}
+        result = normalize_plan_config(raw)
+        # 作为非标准字段保留？不，看实现：
+        # 如果 "editing_mode" in raw and isinstance(str) 才更新
+        # 然后遍历所有key，不在标准列表中的保留
+        # editing_mode 在标准列表中，所以不会保留为非标准
+        # 所以 editing_mode 保持默认
+        assert result["editing_mode"] == "one_take"
+
+
+class TestNormalizeTemplateConfig:
+    """normalize_template_config 函数测试"""
+
+    def test_none_returns_default(self):
+        result = normalize_template_config(None)
+        assert result == DEFAULT_EDIT_TEMPLATE_CONFIG
+        # 确保是深拷贝
+        result["transition_enabled"] = False
+        assert DEFAULT_EDIT_TEMPLATE_CONFIG["transition_enabled"] is True
+
+    def test_empty_dict_returns_default(self):
+        result = normalize_template_config({})
+        assert result == DEFAULT_EDIT_TEMPLATE_CONFIG
+
+    def test_transition_enabled_update(self):
+        raw = {"transition_enabled": False}
+        result = normalize_template_config(raw)
+        assert result["transition_enabled"] is False
+
+    def test_transition_enabled_non_bool_ignored(self):
+        raw = {"transition_enabled": "yes"}
+        result = normalize_template_config(raw)
+        # transition_enabled 在标准列表中，非bool则不更新
+        # 也不会作为非标准字段保留
+        assert result["transition_enabled"] is True
+
+    def test_partial_sections_update(self):
+        raw = {
+            "cover": {"type": "ai_regenerate"},
+            "filter": {"enabled": True, "intensity": 75},
+            "transition_enabled": False,
+            "editing_mode": "pip",
+        }
+        result = normalize_template_config(raw)
+        assert result["cover"]["type"] == "ai_regenerate"
+        assert result["filter"]["enabled"] is True
+        assert result["filter"]["intensity"] == 75
+        assert result["transition_enabled"] is False
+        assert result["editing_mode"] == "pip"
+
+    def test_non_standard_fields_preserved(self):
+        raw = {"template_version": 3, "author": "test"}
+        result = normalize_template_config(raw)
+        assert result["template_version"] == 3
+        assert result["author"] == "test"
+
+    def test_template_has_extra_field_over_plan(self):
+        """模板normalize结果比计划多transition_enabled"""
+        plan_result = normalize_plan_config({"bgm": {"enabled": True}})
+        template_result = normalize_template_config({"bgm": {"enabled": True}})
+        assert "transition_enabled" in template_result
+        assert "transition_enabled" not in plan_result