diff --git a/global/enums.go b/global/enums.go
new file mode 100644
index 0000000..b116bb8
--- /dev/null
+++ b/global/enums.go
@@ -0,0 +1,28 @@
+package global
+
+// 1. 维度定义 (Dimension) - 用于 UI 的大分类 Tab
+const (
+	BadgeDimPersistence = "PERSISTENCE" // 勤勉系 (坚持)
+	BadgeDimExpertise   = "EXPERTISE"   // 专家系 (施肥/修剪/换盆)
+	BadgeDimJournal     = "JOURNAL"     // 记录系 (拍照/日记)
+	BadgeDimDiscovery   = "DISCOVERY"   // 隐藏/彩蛋系
+)
+
+// 2. 行为代码 (Action Code) - 对应触发徽章的底层事件
+const (
+	ActionWater     = "ACT_WATER"     // 浇水
+	ActionFertilize = "ACT_FERTILIZE" // 施肥
+	ActionPrune     = "ACT_PRUNE"     // 修剪
+	ActionRepot     = "ACT_REPOT"     // 换盆
+	ActionPhoto     = "ACT_PHOTO"     // 拍照
+	ActionLogin     = "ACT_LOGIN"     // 签到
+	ActionKillPlant = "ACT_KILL"      // 把植物养死了(作为彩蛋徽章)
+)
+
+// 3. 徽章等级 (Tier)
+const (
+	BadgeTierBronze  = 1 // 铜
+	BadgeTierSilver  = 2 // 银
+	BadgeTierGold    = 3 // 金
+	BadgeTierDiamond = 4 // 钻石
+)