diff --git a/backend/src/main/java/com/designhub/service/AnalyticsService.java b/backend/src/main/java/com/designhub/service/AnalyticsService.java
index 8c0f3b9..18a6d79 100644
--- a/backend/src/main/java/com/designhub/service/AnalyticsService.java
+++ b/backend/src/main/java/com/designhub/service/AnalyticsService.java
@@ -293,8 +293,9 @@ public class AnalyticsService {
                 .filter(t -> "completed".equals(t.getStatus()))
                 .count();
             
+            // 使用 score 字段（预估积分）作为积分消耗，因为 scoreReward 字段未被使用
             BigDecimal scoreUsed = dateTasks.stream()
-                .map(Task::getScoreReward)
+                .map(Task::getScore)
                 .filter(Objects::nonNull)
                 .reduce(BigDecimal.ZERO, BigDecimal::add);