diff --git a/docs_dev/plans/2026-07-31-shelf-c-attribute-shop.md b/docs_dev/plans/2026-07-31-shelf-c-attribute-shop.md
index f723475..e152cca 100644
--- a/docs_dev/plans/2026-07-31-shelf-c-attribute-shop.md
+++ b/docs_dev/plans/2026-07-31-shelf-c-attribute-shop.md
@@ -61,7 +61,7 @@ Expected: `Switched to a new branch 'feat/shelf-c-attribute-shop'`
 
 **Interfaces:**
 - Consumes: 无（零依赖）
-- Produces: `PriceFormula.compute(spec: Dictionary, purchased: int) -> int`；`PriceFormula.curve_from_string(s: String) -> PriceFormula.Curve`；`enum Curve { GEOMETRIC, LINEAR, FLAT }`
+- Produces: `PriceFormula.compute(spec: Dictionary, purchased: int) -> int`；`PriceFormula.curve_from_string(s: String) -> PriceFormula.Curve`；`enum PriceCurve { GEOMETRIC, LINEAR, FLAT }`
 
 > 纯函数，**先写断言、看它失败、再实现**。断言经 `execute_editor_script` 执行（项目无测试框架）。
 
@@ -86,20 +86,20 @@ Create `scripts/domain/price_formula.gd`：
 class_name PriceFormula
 extends RefCounted
 
-enum Curve { GEOMETRIC, LINEAR, FLAT }
+enum PriceCurve { GEOMETRIC, LINEAR, FLAT }
 
-const _CURVE_BY_NAME: Dictionary[String, Curve] = {
-	"geometric": Curve.GEOMETRIC,
-	"linear":    Curve.LINEAR,
-	"flat":      Curve.FLAT,
+const _CURVE_BY_NAME: Dictionary[String, PriceCurve] = {
+	"geometric": PriceCurve.GEOMETRIC,
+	"linear":    PriceCurve.LINEAR,
+	"flat":      PriceCurve.FLAT,
 }
 
 ## JSON 的 curve 字符串 → 枚举；未知值 push_error 并回退 GEOMETRIC
-static func curve_from_string(s: String) -> Curve:
+static func curve_from_string(s: String) -> PriceCurve:
 	if _CURVE_BY_NAME.has(s):
 		return _CURVE_BY_NAME[s]
 	push_error("PriceFormula: 未知 curve「%s」，回退 geometric" % s)
-	return Curve.GEOMETRIC
+	return PriceCurve.GEOMETRIC
 
 ## 唯一的价格入口
 ## spec      —— 数据文件里的定价段，读 price_base / price_growth / curve
@@ -109,12 +109,12 @@ static func compute(spec: Dictionary, purchased: int) -> int:
 	var base: float = float(spec.get("price_base", 0.0))
 	var growth: float = float(spec.get("price_growth", 1.0))
 	var n: int = maxi(purchased, 0)
-	var curve: Curve = curve_from_string(String(spec.get("curve", "geometric")))
+	var curve: PriceCurve = curve_from_string(String(spec.get("curve", "geometric")))
 	var raw: float = 0.0
 	match curve:
-		Curve.LINEAR:
+		PriceCurve.LINEAR:
 			raw = base + float(n) * growth
-		Curve.FLAT:
+		PriceCurve.FLAT:
 			raw = base
 		_:
 			raw = base * pow(growth, float(n))
diff --git a/docs_dev/specs/2026-07-31-shelf-c-attribute-shop-design.md b/docs_dev/specs/2026-07-31-shelf-c-attribute-shop-design.md
index 0943bf1..05a4d11 100644
--- a/docs_dev/specs/2026-07-31-shelf-c-attribute-shop-design.md
+++ b/docs_dev/specs/2026-07-31-shelf-c-attribute-shop-design.md
@@ -93,14 +93,14 @@
 class_name PriceFormula
 extends RefCounted
 
-enum Curve { GEOMETRIC, LINEAR, FLAT }
+enum PriceCurve { GEOMETRIC, LINEAR, FLAT }
 
 ## 唯一入口。spec 来自数据文件；本模块**不认识**「属性/法杖/装备」，只认识 {price_base, price_growth, curve}
 ## purchased —— 已购次数（0 = 首次购买）
 static func compute(spec: Dictionary, purchased: int) -> int
 
 ## curve 字符串 → 枚举；未知值 push_error 并回退 GEOMETRIC
-static func curve_from_string(s: String) -> Curve
+static func curve_from_string(s: String) -> PriceCurve
 ```
 
 | curve | 公式 |