diff --git a/service/binance.go b/service/binance.go
index 383dec3..837bdf7 100644
--- a/service/binance.go
+++ b/service/binance.go
@@ -143,23 +143,17 @@ func sendPriceUpdate() {
 func RunBinance() {
 	log.Println("Starting Binance service...")
 
+	// 立即发送一次价格更新
 	sendPriceUpdate()
 
-	var scheduleNextUpdate func()
-	scheduleNextUpdate = func() {
-		now := time.Now().In(singaporeTZ)
-		nextHour := now.Add(time.Hour).Truncate(time.Hour)
-		duration := nextHour.Sub(now)
+	ticker := time.NewTicker(1 * time.Minute)
+	defer ticker.Stop()
 
-		time.AfterFunc(duration, func() {
+	for range ticker.C {
+		now := time.Now().In(singaporeTZ)
+		if now.Minute() == 0 {
 			log.Println("Sending hourly price update...")
 			sendPriceUpdate()
-			scheduleNextUpdate()
-		})
+		}
 	}
-
-	scheduleNextUpdate()
-
-	// 保持主 goroutine 运行
-	select {}
 }
diff --git a/service/guard.go b/service/guard.go
index ab59787..5b68689 100644
--- a/service/guard.go
+++ b/service/guard.go
@@ -147,16 +147,20 @@ func processMessage(bot *tgbotapi.BotAPI, message *tgbotapi.Message, linkFilter
 	if shouldFilter {
 		log.Printf("Message should be filtered: %s", message.Text)
 		if message.From.ID != core.ADMIN_ID {
+			// 删除原始消息
 			deleteMsg := tgbotapi.NewDeleteMessage(message.Chat.ID, message.MessageID)
 			_, err := bot.Request(deleteMsg)
 			if err != nil {
 				log.Printf("Failed to delete message: %v", err)
 			}
+
+			// 发送提示消息
 			notification := tgbotapi.NewMessage(message.Chat.ID, "已撤回该消息。注:一个链接不能发两次.")
 			sent, err := bot.Send(notification)
 			if err != nil {
 				log.Printf("Failed to send notification: %v", err)
 			} else {
+				// 3分钟后删除提示消息
 				go deleteMessageAfterDelay(bot, message.Chat.ID, sent.MessageID, 3*time.Minute)
 			}
 		}
@@ -166,5 +170,16 @@ func processMessage(bot *tgbotapi.BotAPI, message *tgbotapi.Message, linkFilter
 		log.Printf("New non-whitelisted links found: %v", newLinks)
 	}
 
-	CheckAndReplyPrompt(bot, message)
+	// 检查并回复提示词
+	if reply, found := GetPromptReply(message.Text); found {
+		replyMsg := tgbotapi.NewMessage(message.Chat.ID, reply)
+		replyMsg.ReplyToMessageID = message.MessageID
+		sent, err := bot.Send(replyMsg)
+		if err != nil {
+			log.Printf("Failed to send prompt reply: %v", err)
+		} else {
+			// 3分钟后删除提示词回复
+			go deleteMessageAfterDelay(bot, message.Chat.ID, sent.MessageID, 3*time.Minute)
+		}
+	}
 }