diff --git a/internal/service/weekstar/event.go b/internal/service/weekstar/event.go
index 3d960b2..189b216 100644
--- a/internal/service/weekstar/event.go
+++ b/internal/service/weekstar/event.go
@@ -14,7 +14,7 @@ import (
 // ProcessGiftEvent 按送礼事件发生时间归属配置，并把积分累加到对应周期实时榜。
 func (s *WeekStarService) ProcessGiftEvent(ctx context.Context, event weekStarGiftEvent, rawPayload string) error {
 	sysOrigin := s.normalizeSysOrigin(event.SysOrigin)
-	trackID := strings.TrimSpace(event.TrackID)
+	trackID := strings.TrimSpace(event.TrackID.String())
 	if trackID == "" || int64(event.SendUserID) <= 0 {
 		return nil
 	}
@@ -154,7 +154,7 @@ func (e weekStarMessageEventEnvelope) bodyPayload() (string, bool, error) {
 }
 
 func (e weekStarGiftEvent) hasBusinessFields() bool {
-	return strings.TrimSpace(e.TrackID) != "" ||
+	return strings.TrimSpace(e.TrackID.String()) != "" ||
 		int64(e.SendUserID) > 0 ||
 		int64(e.GiftConfig.ID) > 0
 }
diff --git a/internal/service/weekstar/page_test.go b/internal/service/weekstar/page_test.go
index 611b814..13da0d7 100644
--- a/internal/service/weekstar/page_test.go
+++ b/internal/service/weekstar/page_test.go
@@ -190,7 +190,7 @@ func TestProcessGiftEventCountsConfiguredNonDefaultSysOrigin(t *testing.T) {
 	}
 
 	err := service.ProcessGiftEvent(ctx, weekStarGiftEvent{
-		TrackID:    "tarab-track-1",
+		TrackID:    flexibleString("tarab-track-1"),
 		SysOrigin:  "TARAB",
 		SendUserID: flexibleInt64(3001),
 		Quantity:   flexibleInt64(2),
@@ -264,7 +264,7 @@ func TestProcessGiftPayloadUnwrapsJavaMessageEventEnvelope(t *testing.T) {
 	}
 
 	body, err := json.Marshal(map[string]any{
-		"trackId":    "2049831533035974657",
+		"trackId":    int64(2049831533035974657),
 		"sysOrigin":  "LIKEI",
 		"sendUserId": "2042274349343506434",
 		"quantity":   4,
diff --git a/internal/service/weekstar/types.go b/internal/service/weekstar/types.go
index ace9e49..87e52a7 100644
--- a/internal/service/weekstar/types.go
+++ b/internal/service/weekstar/types.go
@@ -71,9 +71,35 @@ func (v flexibleInt64) MarshalJSON() ([]byte, error) {
 	return json.Marshal(strconv.FormatInt(int64(v), 10))
 }
 
+// flexibleString 用于兼容 MQ 中字符串和数字混用的幂等 ID 字段。
+type flexibleString string
+
+// UnmarshalJSON 把 JSON 字符串或数字统一解析成字符串。
+func (v *flexibleString) UnmarshalJSON(data []byte) error {
+	raw := strings.TrimSpace(string(data))
+	if raw == "" || raw == "null" {
+		*v = ""
+		return nil
+	}
+	if strings.HasPrefix(raw, "\"") && strings.HasSuffix(raw, "\"") {
+		var parsed string
+		if err := json.Unmarshal(data, &parsed); err != nil {
+			return err
+		}
+		*v = flexibleString(strings.TrimSpace(parsed))
+		return nil
+	}
+	*v = flexibleString(raw)
+	return nil
+}
+
+func (v flexibleString) String() string {
+	return string(v)
+}
+
 // weekStarGiftEvent 表示送礼 MQ 事件的核心字段。
 type weekStarGiftEvent struct {
-	TrackID    string                  `json:"trackId"`
+	TrackID    flexibleString          `json:"trackId"`
 	SysOrigin  string                  `json:"sysOrigin"`
 	SendUserID flexibleInt64           `json:"sendUserId"`
 	Quantity   flexibleInt64           `json:"quantity"`