diff --git a/game-cloud/game-module-aigc/game-module-aigc-server/src/main/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImpl.java b/game-cloud/game-module-aigc/game-module-aigc-server/src/main/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImpl.java
index 41d94001..17b7cbea 100644
--- a/game-cloud/game-module-aigc/game-module-aigc-server/src/main/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImpl.java
+++ b/game-cloud/game-module-aigc/game-module-aigc-server/src/main/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImpl.java
@@ -31,6 +31,12 @@ public class NewapiQuotaServiceImpl implements NewapiQuotaService {
     private static final String CHANNEL_PASSWORD = "password";
     private static final String CHANNEL_INVITE = "invite";
 
+    /**
+     * 单次 claim 的最大 CAS 次数。多个请求可能同时选中最早 FREE，输家需重选剩余条目；
+     * 固定小次数可消除常见竞争误判，同时避免异常竞争时无限占用注册或派发线程。
+     */
+    private static final int CLAIM_MAX_ATTEMPTS = 3;
+
     /**
      * 主开关（默认 false）：关时 claim/派发全旁路。同 {@code NewapiQuotaClaimConsumer} 的 @ConditionalOnProperty，
      * 开则消费者装配 + per-user 门生效。
@@ -158,26 +164,44 @@ public class NewapiQuotaServiceImpl implements NewapiQuotaService {
             return true;
         }
         String bizNo = "claim_" + gamePlayerId;
-        try {
-            int affected = poolMapper.claimOneFree(gamePlayerId, bizNo, LocalDateTime.now());
-            if (affected == 1) {
-                log.info("[newapi-quota] claim 成功 FREE→CLAIMED scene={}, gamePlayerId={}, bizNo={}", scene, gamePlayerId, bizNo);
-                alertIfLowWater(scene);
-                return true;
+        for (int attempt = 1; attempt <= CLAIM_MAX_ATTEMPTS; attempt++) {
+            try {
+                int affected = poolMapper.claimOneFree(gamePlayerId, bizNo, LocalDateTime.now());
+                if (affected == 1) {
+                    log.info("[newapi-quota] claim 成功 FREE→CLAIMED scene={}, gamePlayerId={}, bizNo={}, attempt={}",
+                            scene, gamePlayerId, bizNo, attempt);
+                    alertIfLowWater(scene);
+                    return true;
+                }
+
+                // affected=0 既可能是真池空，也可能是并发请求先更新了同一条最早 FREE；先复查本人绑定以保持幂等。
+                NewapiQuotaPoolDO concurrentClaim = poolMapper.selectClaimedByPlayer(gamePlayerId);
+                if (concurrentClaim != null) {
+                    log.info("[newapi-quota] claim CAS 未命中后复查到并发绑定，幂等复用 scene={}, gamePlayerId={}, poolId={}, attempt={}",
+                            scene, gamePlayerId, concurrentClaim.getId(), attempt);
+                    return true;
+                }
+                if (attempt < CLAIM_MAX_ATTEMPTS) {
+                    // 下一轮 SQL 会重新选择当前最早 FREE，避开刚被并发抢走的条目；固定三轮，不做无界自旋。
+                    log.info("[newapi-quota] claim CAS 未命中且玩家仍未绑定，重选剩余 FREE scene={}, gamePlayerId={}, attempt={}",
+                            scene, gamePlayerId, attempt);
+                    continue;
+                }
+            } catch (DuplicateKeyException e) {
+                // 并发同玩家 claim：两路各抢一条不同 FREE，第二路写 claimed_by/biz_no 撞 uk_claimed_by/uk_biz_no；
+                // 冲突后必须复查真实 CLAIMED，不能把其它历史脏 biz_no 冲突误判为成功。
+                NewapiQuotaPoolDO concurrentClaim = poolMapper.selectClaimedByPlayer(gamePlayerId);
+                boolean claimedByConcurrentRequest = concurrentClaim != null;
+                log.info("[newapi-quota] claim 唯一键冲突后复查完成 scene={}, gamePlayerId={}, claimed={}",
+                        scene, gamePlayerId, claimedByConcurrentRequest);
+                return claimedByConcurrentRequest;
             }
-            // affected=0：子查询无 FREE 命中 = 池空（非并发；并发同玩家走下方 DuplicateKeyException 分支）。
-            log.warn("[newapi-quota] 池空（无 FREE 条目），本次未绑 scene={}, gamePlayerId={}", scene, gamePlayerId);
-            triggerWaterLevelAlert(0L, scene);
-            return false;
-        } catch (DuplicateKeyException e) {
-            // 并发同玩家 claim：两路各抢一条不同 FREE，第二路写 claimed_by/biz_no 撞 uk_claimed_by/uk_biz_no →
-            //   冲突后必须复查该玩家的真实 CLAIMED 记录；不能把其它历史脏 biz_no 冲突误判为成功。
-            NewapiQuotaPoolDO concurrentClaim = poolMapper.selectClaimedByPlayer(gamePlayerId);
-            boolean claimedByConcurrentRequest = concurrentClaim != null;
-            log.info("[newapi-quota] claim 唯一键冲突后复查完成 scene={}, gamePlayerId={}, claimed={}",
-                    scene, gamePlayerId, claimedByConcurrentRequest);
-            return claimedByConcurrentRequest;
         }
+
+        log.warn("[newapi-quota] 有界重试后仍无 FREE 且玩家未绑定 scene={}, gamePlayerId={}, attempts={}",
+                scene, gamePlayerId, CLAIM_MAX_ATTEMPTS);
+        triggerWaterLevelAlert(0L, scene);
+        return false;
     }
 
     /**
diff --git a/game-cloud/game-module-aigc/game-module-aigc-server/src/test/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImplTest.java b/game-cloud/game-module-aigc/game-module-aigc-server/src/test/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImplTest.java
index 4355546c..6d9a95aa 100644
--- a/game-cloud/game-module-aigc/game-module-aigc-server/src/test/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImplTest.java
+++ b/game-cloud/game-module-aigc/game-module-aigc-server/src/test/java/com/wanxiang/huijing/game/module/aigc/service/quota/NewapiQuotaServiceImplTest.java
@@ -26,6 +26,7 @@ import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoInteractions;
 import static org.mockito.Mockito.when;
@@ -116,6 +117,8 @@ class NewapiQuotaServiceImplTest extends BaseMockitoUnitTest {
         when(poolMapper.claimOneFree(eq(5L), eq("claim_5"), any(LocalDateTime.class))).thenReturn(0);
 
         assertDoesNotThrow(() -> service.claimForRegister(5L, "password"));
+
+        verify(poolMapper, times(3)).claimOneFree(eq(5L), eq("claim_5"), any(LocalDateTime.class));
     }
 
     /** 并发同玩家 claim：CAS 撞 uk 抛 DuplicateKeyException → 幂等收敛，不外抛。 */
@@ -150,6 +153,34 @@ class NewapiQuotaServiceImplTest extends BaseMockitoUnitTest {
         verify(poolMapper).claimOneFree(eq(5L), eq("claim_5"), any(LocalDateTime.class));
     }
 
+    /** 并发抢同一条 FREE 时首轮 CAS 可返 0；复查仍未绑定后应重选剩余 FREE，并在小次数内成功。 */
+    @Test
+    void testReconcileClaim_affectedZero_retriesRemainingFreeAndSucceeds() {
+        when(playerApi.getPlayer(5L)).thenReturn(CommonResult.success(member(5L)));
+        when(poolMapper.selectClaimedByPlayer(5L)).thenReturn(null);
+        when(poolMapper.claimOneFree(eq(5L), eq("claim_5"), any(LocalDateTime.class)))
+                .thenReturn(0)
+                .thenReturn(1);
+
+        assertTrue(service.reconcileClaim(5L));
+
+        verify(poolMapper, times(2)).claimOneFree(eq(5L), eq("claim_5"), any(LocalDateTime.class));
+    }
+
+    /** 首轮 CAS 返 0 后若复查发现同一玩家已由并发请求绑定，应幂等成功且不再占第二条。 */
+    @Test
+    void testReconcileClaim_affectedZero_rechecksConcurrentBindingWithoutRetry() {
+        when(playerApi.getPlayer(5L)).thenReturn(CommonResult.success(member(5L)));
+        when(poolMapper.selectClaimedByPlayer(5L))
+                .thenReturn(null)
+                .thenReturn(claimedEntry(5L, "sk-CONCURRENT"));
+        when(poolMapper.claimOneFree(eq(5L), eq("claim_5"), any(LocalDateTime.class))).thenReturn(0);
+
+        assertTrue(service.reconcileClaim(5L));
+
+        verify(poolMapper).claimOneFree(eq(5L), eq("claim_5"), any(LocalDateTime.class));
+    }
+
     /** 重复补偿：已有 CLAIMED 记录直接成功，不再占用第二条 FREE。 */
     @Test
     void testReconcileClaim_existingClaim_idempotentNoCas() {
diff --git a/game-cloud/game-module-trade/game-module-trade-server/src/main/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeController.java b/game-cloud/game-module-trade/game-module-trade-server/src/main/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeController.java
index 05712b0a..6133942b 100644
--- a/game-cloud/game-module-trade/game-module-trade-server/src/main/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeController.java
+++ b/game-cloud/game-module-trade/game-module-trade-server/src/main/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeController.java
@@ -68,6 +68,8 @@ public class TradeController {
     @GetMapping("/account/mine")
     @Operation(summary = "我的收益账户", description = "余额/累计收益/累计提现/冻结中（单位分）；账户不存在时按需初始化为零值账户")
     public CommonResult<TradeAccountRespVO> getMyAccount() {
+        // 查询可能创建零值账户，必须先在可信后端关闭 dogfood 交易子系统，不能依赖前端隐藏入口。
+        dogfoodAccessGuard.rejectInDogfood("trade.account.mine", TRADE_DOGFOOD_MONETIZATION_DISABLED);
         Long userId = SecurityFrameworkUtils.getLoginUserId();
         // 账户不存在时按需初始化为零值账户（首次查询/首次有收益时）
         AccountDO account = accountService.getOrInitAccount(userId);
@@ -77,6 +79,7 @@ public class TradeController {
     @GetMapping("/income/page")
     @Operation(summary = "我的收益流水分页", description = "source=ad/tip、gross/net/share_rate、结算日；创作者只见自己")
     public CommonResult<PageResult<IncomeRespVO>> getMyIncomePage(@Valid AppIncomePageReqVO reqVO) {
+        dogfoodAccessGuard.rejectInDogfood("trade.income.page", TRADE_DOGFOOD_MONETIZATION_DISABLED);
         Long userId = SecurityFrameworkUtils.getLoginUserId();
         PageResult<IncomeDO> pageResult = incomeService.getMyIncomePage(reqVO, userId);
         return success(TradeConvert.toIncomePage(pageResult));
@@ -85,6 +88,7 @@ public class TradeController {
     @GetMapping("/my/income-summary")
     @Operation(summary = "我的收益汇总", description = "看板「收益」转真：累计实得/原始收入/入账笔数（聚合已结算收益）；归属隔离限本人")
     public CommonResult<IncomeSummaryVO> getMyIncomeSummary() {
+        dogfoodAccessGuard.rejectInDogfood("trade.income-summary", TRADE_DOGFOOD_MONETIZATION_DISABLED);
         // 归属隔离硬边界：user_id 取自 token 解析的 getLoginUserId()，聚合谓词在 Service/Mapper 强制本人
         Long userId = SecurityFrameworkUtils.getLoginUserId();
         return success(incomeService.getMyIncomeSummary(userId));
@@ -110,6 +114,7 @@ public class TradeController {
     @GetMapping("/subscription/mine")
     @Operation(summary = "我的会员订阅态（U2）", description = "C 端查订阅态：是否有效(active)/套餐/到期时间；有效性按 expire_time>now 实时判定（无 cron 也准）；从未订阅返回空态(subscribed=false)")
     public CommonResult<SubscriptionRespVO> getMySubscription() {
+        dogfoodAccessGuard.rejectInDogfood("trade.subscription.mine", TRADE_DOGFOOD_MONETIZATION_DISABLED);
         // 归属隔离硬边界：userId 取自 token 解析的 getLoginUserId()，命中 uk_user 限本人
         Long userId = SecurityFrameworkUtils.getLoginUserId();
         SubscriptionDO sub = subscriptionService.getMySubscription(userId);
diff --git a/game-cloud/game-module-trade/game-module-trade-server/src/test/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeControllerDogfoodTest.java b/game-cloud/game-module-trade/game-module-trade-server/src/test/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeControllerDogfoodTest.java
index d7b87c9b..7b4d83e8 100644
--- a/game-cloud/game-module-trade/game-module-trade-server/src/test/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeControllerDogfoodTest.java
+++ b/game-cloud/game-module-trade/game-module-trade-server/src/test/java/com/wanxiang/huijing/game/module/trade/controller/app/TradeControllerDogfoodTest.java
@@ -18,9 +18,10 @@ import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoInteractions;
 
-/** 充值与提现 app 入口在狗粮态的直接调用负例。 */
+/** 交易 app 入口在狗粮态的可信后端拒绝负例。 */
 class TradeControllerDogfoodTest extends BaseMockitoUnitTest {
 
     @InjectMocks
@@ -52,7 +53,48 @@ class TradeControllerDogfoodTest extends BaseMockitoUnitTest {
         assertThrows(ServiceException.class, () -> chargeController.getPointsBalance());
         assertThrows(ServiceException.class, () -> tradeController.applyWithdraw(null));
         assertThrows(ServiceException.class, () -> tradeController.getMyWithdrawPage(null));
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.charge.create", TRADE_DOGFOOD_MONETIZATION_DISABLED);
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.charge.points-balance", TRADE_DOGFOOD_MONETIZATION_DISABLED);
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.withdraw.apply", TRADE_DOGFOOD_MONETIZATION_DISABLED);
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.withdraw.page", TRADE_DOGFOOD_MONETIZATION_DISABLED);
         verifyNoInteractions(chargeService, withdrawService);
     }
 
+    /** 查询账户会按需创建零值账户，狗粮态必须在触碰账户服务前拒绝。 */
+    @Test
+    void shouldRejectAccountReadOrCreateBeforeBusinessService() {
+        assertThrows(ServiceException.class, () -> tradeController.getMyAccount());
+
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.account.mine", TRADE_DOGFOOD_MONETIZATION_DISABLED);
+        verifyNoInteractions(accountService);
+    }
+
+    /** 收益分页与汇总虽为读取，也属于未启用交易子系统，狗粮态不得泄漏或触发业务链。 */
+    @Test
+    void shouldRejectIncomeReadsBeforeBusinessService() {
+        assertThrows(ServiceException.class, () -> tradeController.getMyIncomePage(null));
+        assertThrows(ServiceException.class, () -> tradeController.getMyIncomeSummary());
+
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.income.page", TRADE_DOGFOOD_MONETIZATION_DISABLED);
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.income-summary", TRADE_DOGFOOD_MONETIZATION_DISABLED);
+        verifyNoInteractions(incomeService);
+    }
+
+    /** 订阅态读取属于交易子系统，狗粮态必须由可信后端统一拒绝。 */
+    @Test
+    void shouldRejectSubscriptionReadBeforeBusinessService() {
+        assertThrows(ServiceException.class, () -> tradeController.getMySubscription());
+
+        verify(dogfoodAccessGuard).rejectInDogfood(
+                "trade.subscription.mine", TRADE_DOGFOOD_MONETIZATION_DISABLED);
+        verifyNoInteractions(subscriptionService);
+    }
+
 }