diff --git a/internal/domains/user/services/sms_code_service.go b/internal/domains/user/services/sms_code_service.go
index 1c1a963..04bee03 100644
--- a/internal/domains/user/services/sms_code_service.go
+++ b/internal/domains/user/services/sms_code_service.go
@@ -187,8 +187,6 @@ func (s *SMSCodeService) GetCodeStatus(ctx context.Context, phone string, scene
 
 // checkRateLimit 检查发送频率限制
 func (s *SMSCodeService) CheckRateLimit(ctx context.Context, phone string, scene entities.SMSScene, clientIP, userAgent string) error {
-	now := time.Now()
-
 	// 设备标识（这里使用 User-Agent + IP 的组合做近似设备ID，可根据实际情况调整）
 	deviceID := fmt.Sprintf("ua:%s|ip:%s", userAgent, clientIP)
 
@@ -274,8 +272,6 @@ func (s *SMSCodeService) checkWindowLimit(ctx context.Context, key string, ttl t
 
 // updateSendRecord 更新发送记录
 func (s *SMSCodeService) updateSendRecord(ctx context.Context, phone string, scene entities.SMSScene) {
-	now := time.Now()
-
 	// 更新每日计数（用于后续达到上限时永久封禁）
 	dailyKey := fmt.Sprintf("sms:phone:%s:1d", phone)
 	var dailyCount int