diff --git a/src/constants/family.ts b/src/constants/family.ts
new file mode 100644
index 0000000..f372c0d
--- /dev/null
+++ b/src/constants/family.ts
@@ -0,0 +1,16 @@
+// 家庭圈业务常量
+
+// 每个家庭最多可添加的关爱对象数（设计图 2 文案）
+export const MAX_CARED_PER_FAMILY = 2
+
+// 每人最多紧急联系人数（设计图 4 说明文字）
+export const MAX_EMERGENCY_CONTACTS = 5
+
+// 家庭名最大长度（设计图 placeholder）
+export const MAX_FAMILY_NAME_LEN = 10
+
+// storage 单 key 持久化整个家庭圈数据集
+export const FAMILY_DATA_STORAGE_KEY = 'familyData'
+
+// mock 新建家庭 id 自增起点，避免与样例 id 冲突
+export const MOCK_ID_SEED = 100000
diff --git a/src/constants/routes.ts b/src/constants/routes.ts
index 2edd403..eaf9d93 100644
--- a/src/constants/routes.ts
+++ b/src/constants/routes.ts
@@ -8,5 +8,7 @@ export const ROUTES = Object.freeze({
   DEVICE_CONFIG: '/pages/device/config',
   DEVICE_DETAIL: '/pages/device/detail',
   FAMILY: '/pages/family/index',
+  FAMILY_DETAIL: '/pages/family/detail',
+  FAMILY_CONTACT_ADD: '/pages/family/contact/add',
   SCENE_SELECT: '/pages/scene/select'
 })