将文件夹命名从拼音改为英文，整理了一些代码，将导入语句迁移到了头部

backend/serializers.py

@@ -0,0 +1,39 @@
+# serializers.py
+
+#小程序弹窗序列化器
+from rest_framework import serializers
+from config.models import PopupPage, PopupConfig, PopupImage
+
+class PopupImageSerializer(serializers.ModelSerializer):
+    """图片序列化器（输出用）"""
+    class Meta:
+        model = PopupImage
+        fields = ['id', 'image_url', 'text', 'sort_order']
+
+
+class PopupConfigSerializer(serializers.ModelSerializer):
+    """弹窗配置序列化器（输出用）"""
+    images = PopupImageSerializer(many=True, read_only=True)
+
+    class Meta:
+        model = PopupConfig
+        fields = [
+            'id', 'popup_id', 'title', 'description',
+            'strategy_type', 'max_count', 'reset_interval',
+            'duration', 'force_even_muted', 'sort_order',
+            'is_active', 'start_time', 'end_time',
+            'created_at', 'updated_at', 'images'
+        ]
+
+
+class PopupPageSerializer(serializers.ModelSerializer):
+    """页面序列化器（输出用）"""
+    popups = PopupConfigSerializer(many=True, read_only=True)
+
+    class Meta:
+        model = PopupPage
+        fields = [
+            'id', 'page_key', 'name', 'description',
+            'is_active', 'ignore_user_mute',
+            'created_at', 'updated_at', 'popups'
+        ]