diff --git a/assets/script/game/common/SingletonModuleComp.ts b/assets/script/game/common/SingletonModuleComp.ts
index c50dabb2..9476f73c 100644
--- a/assets/script/game/common/SingletonModuleComp.ts
+++ b/assets/script/game/common/SingletonModuleComp.ts
@@ -509,7 +509,7 @@ export class SingletonModuleComp extends ecs.Comp {
         if (curLv >= cfg.max_lv) return false;
         // 阶位解锁：二/三阶天赋要求前一阶累计投入点数达标（一阶恒解锁）
         if (!isTalentTierUnlocked(this.data.talents, cfg.tier)) return false;
-        const cost = getTalentUpgradeCost(curLv);
+        const cost = getTalentUpgradeCost(cfg.tier);
         if (cost < 0 || this.getTalentPoints() < cost) return false;
         this.data.talent_points -= cost;
         this.data.talents[uuid] = curLv + 1;
diff --git a/assets/script/game/common/config/TalentSet.ts b/assets/script/game/common/config/TalentSet.ts
index 5170b09a..eaf15e5e 100644
--- a/assets/script/game/common/config/TalentSet.ts
+++ b/assets/script/game/common/config/TalentSet.ts
@@ -272,17 +272,20 @@ export const TalentSet: Record<number, TalentConfig> = {
     },
 };
 
-/** 天赋升级消耗：索引为当前等级（0 表示升到 1 级），返回所需天赋点数 */
-export const TALENT_UPGRADE_COST: number[] = [1, 1, 2, 2, 3];
+/** 天赋升级消耗：按阶位统一消耗，同一阶内每级消耗相同 */
+export const TALENT_UPGRADE_COST: Record<number, number> = {
+    [TalentTier.Basic]: 1,        // 基础天赋：1 点升 1 级
+    [TalentTier.Specialized]: 2,  // 专精天赋：2 点升 1 级
+    [TalentTier.Super]: 2,        // 传说天赋：2 点升 1 级
+};
 
 /**
  * 查询升级所需天赋点数
- * @param curLv 当前等级
- * @returns 升到下一级所需点数；已满级返回 -1
+ * @param tier 天赋所属阶位
+ * @returns 升 1 级所需点数；非法阶位返回 -1
  */
-export function getTalentUpgradeCost(curLv: number): number {
-    if (curLv < 0 || curLv >= TALENT_UPGRADE_COST.length) return -1;
-    return TALENT_UPGRADE_COST[curLv];
+export function getTalentUpgradeCost(tier: TalentTier): number {
+    return TALENT_UPGRADE_COST[tier] ?? -1;
 }
 
 /** 天赋等级上限（不含）：等级从 0 起步，区间 0~29，共 30 级；每升 1 级产出 1 点天赋点 */
@@ -309,7 +312,7 @@ export function getTalentLevelExp(curLv: number): number {
 export const TALENT_TIER_UNLOCK_THRESHOLD = 10;
 
 /**
- * 计算指定阶位已投入的天赋点数（按升级消耗表逐级累加）。
+ * 计算指定阶位已投入的天赋点数（按该阶统一消耗 × 等级累加）。
  * Why: 阶位解锁按"实际消耗点数"而非"等级总和"口径——与玩家直觉（投入了多少点）
  *      及重置退款口径（resetTalents 同表对账）保持一致。
  * @param levels 天赋等级表（key 为天赋 uuid，value 为当前等级）
@@ -318,14 +321,13 @@ export const TALENT_TIER_UNLOCK_THRESHOLD = 10;
  */
 export function getTalentTierInvestedPoints(levels: Record<number, number>, tier: TalentTier): number {
     if (!levels) return 0;
+    const cost = getTalentUpgradeCost(tier);
+    if (cost <= 0) return 0;
     let invested = 0;
     for (const key in levels) {
         const cfg = TalentSet[key];
         if (!cfg || cfg.tier !== tier) continue;
-        for (let i = 0; i < levels[key]; i++) {
-            const c = getTalentUpgradeCost(i);
-            if (c > 0) invested += c;
-        }
+        invested += levels[key] * cost;
     }
     return invested;
 }
diff --git a/assets/script/game/map/TalentsComp.ts b/assets/script/game/map/TalentsComp.ts
index fac607a2..f6b3cf18 100644
--- a/assets/script/game/map/TalentsComp.ts
+++ b/assets/script/game/map/TalentsComp.ts
@@ -260,7 +260,7 @@ export class TalentsComp extends CCComp {
             this.showSmallTip(tab?.node ?? null, "该天赋已满级");
             return;
         }
-        const cost = getTalentUpgradeCost(lv);
+        const cost = getTalentUpgradeCost(cfg.tier);
         if (cost <= 0) return;
         if (smc.getTalentPoints() < cost) {
             this.showSmallTip(tab?.node ?? null, "天赋点不足");