diff --git a/internal/routes/play/wait_card.go b/internal/routes/play/wait_card.go
index 7db570b..2bf0a38 100644
--- a/internal/routes/play/wait_card.go
+++ b/internal/routes/play/wait_card.go
@@ -10,11 +10,12 @@ import (
 	"game-driver/pkg/card_reader"
 	"game-driver/pkg/channel"
 	"game-driver/pkg/tts"
-	"go.uber.org/zap"
 	"io/fs"
 	"os"
 	"sync"
 	"time"
+
+	"go.uber.org/zap"
 )
 
 func WaitCard(ctx context.Context) leaf.HandlerFunc {
@@ -79,13 +80,14 @@ func WaitCard(ctx context.Context) leaf.HandlerFunc {
 		defer cardInfo.Close()
 
 		// 结束信号通道
-		cc, cancel := context.WithCancel(context.TODO())
+		// 使用独立 context 确保读卡器监听完整执行，不受外部取消影响
+		c2, cancel := context.WithCancel(context.Background())
 		defer cancel()
 
 		wait.Add(1)
 		go func() {
 			defer wait.Done()
-			reader.OnCardInfo(cc, func(info *card_reader.CardInfo) {
+			reader.OnCardInfo(c2, func(info *card_reader.CardInfo) {
 				cardInfo.Send(info.ID)
 			})
 		}()
diff --git a/internal/routes/standby_ctrl/cron.go b/internal/routes/standby_ctrl/cron.go
index 9907a02..c4f1a3b 100644
--- a/internal/routes/standby_ctrl/cron.go
+++ b/internal/routes/standby_ctrl/cron.go
@@ -65,7 +65,8 @@ func Cron(rootRules []cronrange.Rule, cron string, play func(c context.Context)
 			case r := <-a:
 				if r {
 					if ok := m.TryLock(); ok {
-						ctx, cc := context.WithCancel(context.TODO())
+						// 使用独立 context 确保任务完整执行，不受外部取消影响
+						ctx, cc := context.WithCancel(context.Background())
 						cancel = cc
 						waitGroup.Add(1)
 						go func() {
diff --git a/internal/routes/standby_ctrl/interval.go b/internal/routes/standby_ctrl/interval.go
index 773bb6c..ee5a976 100644
--- a/internal/routes/standby_ctrl/interval.go
+++ b/internal/routes/standby_ctrl/interval.go
@@ -28,6 +28,8 @@ func Interval(interval int64, play func(c context.Context) error) func(c context
 				case <-c.Done():
 					return nil
 				default:
+					// 避免忙循环，短暂休眠
+					time.Sleep(10 * time.Millisecond)
 				}
 			}
 		}