diff --git a/assets/script/game/common/config/GameEvent.ts b/assets/script/game/common/config/GameEvent.ts
index 030aae79..96a71bdb 100644
--- a/assets/script/game/common/config/GameEvent.ts
+++ b/assets/script/game/common/config/GameEvent.ts
@@ -22,6 +22,8 @@ export enum GameEvent {
     CardRefresh = "CardRefresh",
     /** 单张卡牌被点击选中（payload 为被点击的 CardComp 实例，用于其他卡牌联动隐藏 call_btn） */
     CardSelected = "CardSelected",
+    /** 单张卡牌被成功使用（payload 为该卡槽组件实例 CardComp / SCardComp，用于 MissionCardComp 补卡） */
+    CardUsed = "CardUsed",
     UseHeroCard = "UseHeroCard",
     UseSkillCard = "UseSkillCard",
     UseSpecialCard = "UseSpecialCard",
diff --git a/assets/script/game/map/CardComp.ts b/assets/script/game/map/CardComp.ts
index bfdf00ce..c89267d0 100644
--- a/assets/script/game/map/CardComp.ts
+++ b/assets/script/game/map/CardComp.ts
@@ -347,18 +347,26 @@ export class CardComp extends CCComp {
     /**
      * 根据卡牌类型分发对应的游戏效果事件。
      * - 英雄卡 → CallHero
-     * - 技能卡 → UseSkillCard
      * - 特殊升级 / 特殊刷新 → UseSpecialCard
      *
+     * 卡牌使用成功后会派发 CardUsed 事件（携带本卡槽组件），
+     * 由 MissionCardComp 接收并立即补充一张新卡到该槽位。
+     * SpecialRefresh 例外：其效果本身会重填所有槽位，无需重复补卡。
+     *
      * @param payload 被使用的卡牌数据
      */
     private executeCardEffectEntry(payload: CardConfig) {
         switch (payload.type) {
             case CardType.Hero:
                 oops.message.dispatchEvent(GameEvent.CallHero, payload);
+                oops.message.dispatchEvent(GameEvent.CardUsed, this);
                 break;
             case CardType.SpecialUpgrade:
+                oops.message.dispatchEvent(GameEvent.UseSpecialCard, payload);
+                oops.message.dispatchEvent(GameEvent.CardUsed, this);
+                break;
             case CardType.SpecialRefresh:
+                // 刷新卡效果（tryRefreshHeroCards）会重填全部 3 槽，此处不再补卡
                 oops.message.dispatchEvent(GameEvent.UseSpecialCard, payload);
                 break;
         }
diff --git a/assets/script/game/map/MissionCardComp.ts b/assets/script/game/map/MissionCardComp.ts
index ddb07478..ddad41dd 100644
--- a/assets/script/game/map/MissionCardComp.ts
+++ b/assets/script/game/map/MissionCardComp.ts
@@ -287,6 +287,7 @@ export class MissionCardComp extends CCComp {
         oops.message.on(GameEvent.UseSkillCard, this.onUseSkillCard, this);
         oops.message.on(GameEvent.UseSpecialCard, this.onUseSpecialCard, this);
         oops.message.on(GameEvent.ShowSmallTip, this.onShowSmallTip, this);
+        oops.message.on(GameEvent.CardUsed, this.onCardUsed, this);
 
         /** 按钮触控事件：抽卡 */
         this.cards_chou?.on(NodeEventType.TOUCH_START, this.onDrawTouchStart, this);
@@ -431,10 +432,9 @@ export class MissionCardComp extends CCComp {
     }
 
     private onUseSkillCard(event: string, args: any) {
-        // 选择技能后关闭弹窗
-        if (this.skill_card_node && this.skill_card_node.isValid) {
-            this.skill_card_node.active = false;
-        }
+        // 购买技能卡后不再关闭弹窗：技能卡池与英雄卡池保持一致，
+        // 由 onCardUsed 立即向被使用的槽位补充一张新技能卡。
+        // 弹窗由外部（按钮/阶段切换）控制显隐。
 
         // 修复：独立判断 guide2 的关闭 和 guide3 的开启
         if (!smc.finish_guides.includes(2)) {
@@ -460,6 +460,7 @@ export class MissionCardComp extends CCComp {
         oops.message.off(GameEvent.UseSkillCard, this.onUseSkillCard, this);
         oops.message.off(GameEvent.UseSpecialCard, this.onUseSpecialCard, this);
         oops.message.off(GameEvent.ShowSmallTip, this.onShowSmallTip, this);
+        oops.message.off(GameEvent.CardUsed, this.onCardUsed, this);
         if (this.cards_chou && this.cards_chou.isValid) {
             this.cards_chou.off(NodeEventType.TOUCH_START, this.onDrawTouchStart, this);
             this.cards_chou.off(NodeEventType.TOUCH_END, this.onDrawTouchEnd, this);
@@ -572,6 +573,47 @@ export class MissionCardComp extends CCComp {
         });
     }
 
+    /**
+     * 单张卡牌被成功使用后的补卡回调：
+     *   - payload 为该卡槽组件实例（CardComp 或 SCardComp）。
+     *   - 命中英雄卡槽 → 调用 buildSingleHeroCard 补一张英雄/升级卡。
+     *   - 命中技能卡槽 → 调用 buildSingleSkillCard 补一张技能卡。
+     *   - 未命中任何槽位（如已销毁/未缓存）→ 忽略。
+     *
+     * Why: 购买一张卡后立即补充新卡，避免出现空槽，提升抽卡体验；
+     *      英雄卡池与技能卡池遵循同一逻辑。
+     */
+    private onCardUsed(event: string, args: any) {
+        const source = args;
+        if (!source) return;
+
+        const heroIdx = this.cardComps.findIndex(c => c === source);
+        if (heroIdx >= 0) {
+            const card = this.buildSingleHeroCard();
+            if (card) {
+                this.cardComps[heroIdx].applyDrawCard(card);
+            }
+            mLogger.log(this.debugMode, "MissionCardComp", "refill hero slot", {
+                index: heroIdx,
+                uuid: card?.uuid ?? 0
+            });
+            return;
+        }
+
+        const skillIdx = this.skillCardComps.findIndex(c => c === source);
+        if (skillIdx >= 0) {
+            const card = this.buildSingleSkillCard();
+            if (card) {
+                this.skillCardComps[skillIdx].applyDrawCard(card);
+            }
+            mLogger.log(this.debugMode, "MissionCardComp", "refill skill slot", {
+                index: skillIdx,
+                uuid: card?.uuid ?? 0
+            });
+            return;
+        }
+    }
+
     // ======================== 按钮触控回调 ========================
 
     /** 抽卡按钮按下反馈 */
@@ -957,6 +999,58 @@ export class MissionCardComp extends CCComp {
         return filled;
     }
 
+    /**
+     * 构建单张英雄池卡牌，用于购买后补卡。
+     *
+     * 规则与 buildDrawCards 保持一致（不含"必出轮询"逻辑）：
+     *   1. 满员且有可升级英雄 → 仅从升级卡池按权重抽 1 张。
+     *   2. 否则从 升级卡 + 未召唤英雄卡 的混合池按权重抽 1 张。
+     *
+     * @returns 卡牌数据；池为空时返回 null
+     */
+    private buildSingleHeroCard(): CardConfig | null {
+        const upgradeCards = this.buildHeroUpgradeCards();
+        const aliveHeroCount = this.getAliveHeroCount();
+        const heroMax = this.getMissionHeroMaxNum();
+
+        if (aliveHeroCount >= heroMax && upgradeCards.length > 0) {
+            return this.weightedPick(upgradeCards);
+        }
+
+        const heroCards = CardPoolList.filter(c => c.type === CardType.Hero);
+        const aliveHeroUuids = this.getAliveHeroUuids();
+        const availableHeroCards = heroCards.filter(c => !aliveHeroUuids.has(c.uuid));
+
+        const mixedPool: CardConfig[] = [...upgradeCards, ...availableHeroCards];
+        if (mixedPool.length === 0) return null;
+        return this.weightedPick(mixedPool);
+    }
+
+    /**
+     * 构建单张技能卡，用于购买后补卡。
+     * 规则与 buildSkillDrawCards 对齐（按当前 wave 过滤）。
+     *
+     * @returns 卡牌数据；池为空时返回 null
+     */
+    private buildSingleSkillCard(): CardConfig | null {
+        const currentWave = this.getCurrentWave();
+        const cards = drawCardsByRule(1, {
+            count: 1,
+            type: CardType.Skill,
+            wave: currentWave,
+            unique: true
+        });
+        if (cards.length > 0) return cards[0];
+
+        // 兜底：放宽 wave 限制再尝试
+        const fallback = drawCardsByRule(1, {
+            count: 1,
+            type: CardType.Skill,
+            unique: true
+        });
+        return fallback[0] ?? null;
+    }
+
     private tryRefreshHeroCards(heroType?: HType): boolean {
         const cards = drawCardsByRule(1, {
             count: 3,
@@ -1199,6 +1293,7 @@ export class MissionCardComp extends CCComp {
         }
         model.updateSkillDistanceCache();
         model.dirty_hp = true;
+        model.dirty_lv = true;
         oops.message.dispatchEvent(GameEvent.HeroLvUp, {
             uuid: model.hero_uuid,
             lv: nextLv
diff --git a/assets/script/game/map/SCardComp.ts b/assets/script/game/map/SCardComp.ts
index 7ba7850f..7a1e4a81 100644
--- a/assets/script/game/map/SCardComp.ts
+++ b/assets/script/game/map/SCardComp.ts
@@ -109,6 +109,8 @@ export class SCardComp extends CCComp {
             this.clearAfterUse();
             this.isUsing = false;
             oops.message.dispatchEvent(GameEvent.UseSkillCard, used);
+            // 派发 CardUsed 让 MissionCardComp 立即补一张新技能卡到本槽位
+            oops.message.dispatchEvent(GameEvent.CardUsed, this);
         });
         return used;
     }