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+# 接口变更记录 — 2026-04-14 00:15
+
+> **提交** `eb0ad987` · **作者** wx · **时间** 2026-04-14 00:15:12 +0800
+>
+> fix(product-v2): 详情接口补全Step1基础扩展+Step5补充配置+人群优惠字段
+
+## 📦 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
+
+### hl-product-service-v2
+
+#### ✏️ ProductDetailRespVO
+
+  - 🆕 `balanceDueDays` (`Integer`) — 尾款截止天数
+  - 🆕 `defaultDailyStock` (`Integer`) — 每日库存默认值
+  - 🆕 `defaultRoomCount` (`Integer`) — 默认房间数
+  - ❌ ~~`infantAgeMax`~~ (`Integer`) — 幼童年龄上限
+  - ❌ ~~`toddlerAgeMax`~~ (`Integer`) — 小童年龄上限
+  - ❌ ~~`childAgeMin`~~ (`Integer`) — 儿童年龄下限
+  - ❌ ~~`childAgeMax`~~ (`Integer`) — 儿童年龄上限
+  - ❌ ~~`showReview`~~ (`Boolean`) — 展示评价
+
+<details>
+<summary>📁 全部变更文件 (点击展开)</summary>
+
+```
+M	hl-product-service-v2/src/main/java/com/hulalv/product/service/admin/ProductQueryService.java
+M	hl-product-service-v2/src/main/java/com/hulalv/product/vo/admin/ProductDetailRespVO.java
+M	hl-product-service-v2/src/main/resources/mapper/ProductMapper.xml
+```
+</details>
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