diff --git a/changelogs/2026-03/2026-03-30_1628_4a4db91_fix_resource-servic.md b/changelogs/2026-03/2026-03-30_1628_4a4db91_fix_resource-servic.md
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+# 接口变更记录 — 2026-03-30 16:28
+
+> **提交** `4a4db91` · **作者** wx · **时间** 2026-03-30 16:28:59 +0800
+>
+> fix: resource-service coverMaterialId类型修复 + activity billingType恢复
+
+## 📦 其他数据对象变更
+
+> 以下变更未直接关联到本次接口变更，但可能影响现有接口的请求/响应
+
+### 资源服务
+
+#### ✏️ ActivityCreateRequest
+
+  - 🆕 `billingType` (`String`) — 计费类型：PER_PERSON=按人 PER_GROUP=按团 PER_TIME=按次
+
+#### ✏️ ActivityListVO
+
+  - 🆕 `billingType` (`String`) — 计费类型：PER_PERSON=按人 PER_GROUP=按团 PER_TIME=按次
+
+#### ✏️ ActivityQueryRequest
+
+  - 🆕 `billingType` (`String`) — 计费类型：PER_PERSON=按人 PER_GROUP=按团 PER_TIME=按次
+
+#### ✏️ ActivityUpdateRequest
+
+  - 🆕 `billingType` (`String`) — 计费类型：PER_PERSON=按人 PER_GROUP=按团 PER_TIME=按次
+
+#### ✏️ ActivityVO
+
+  - 🆕 `billingType` (`String`) — 计费类型：PER_PERSON=按人 PER_GROUP=按团 PER_TIME=按次
+
+<details>
+<summary>📁 全部变更文件 (点击展开)</summary>
+
+```
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/constant/ActivityConstants.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/dto/ActivityCreateRequest.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/dto/ActivityQueryRequest.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/dto/ActivityUpdateRequest.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/entity/Activity.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/service/ActivityService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/vo/ActivityListVO.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/activity/vo/ActivityVO.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/hotel/service/HotelService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/hotel/service/RoomTypeService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/restaurant/service/RestaurantService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/scenic/service/ScenicSeasonService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/scenic/service/ScenicSpotService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/service/service/ServiceItemService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/supplies/service/SuppliesService.java
+M	hl-resource-service/src/main/java/com/hulalv/resource/vehicle/service/VehicleModelService.java
+M	hl-resource-service/src/test/java/com/hulalv/resource/activity/service/ActivityServiceTest.java
+M	hl-resource-service/src/test/java/com/hulalv/resource/restaurant/service/RestaurantServiceTest.java
+M	hl-resource-service/src/test/java/com/hulalv/resource/scenic/service/ScenicSpotServiceTest.java
+```
+</details>
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