fix bugs

Service/Budget/BudgetService.cs

@@ -192,6 +192,14 @@ public class BudgetService(
         decimal totalCurrent = 0;
         decimal totalLimit = 0;
 
+        // 是否可以使用趋势统计来计算实际发生额（避免多预算重复计入同一笔账）
+        var transactionType = category switch
+        {
+            BudgetCategory.Expense => TransactionType.Expense,
+            BudgetCategory.Income => TransactionType.Income,
+            _ => TransactionType.None
+        };
+
         foreach (var budget in relevant)
         {
             // 限额折算
@@ -208,7 +216,7 @@ public class BudgetService(
             }
             totalLimit += itemLimit;
 
-            // 当前值累加
+            // 先逐预算累加当前值（作为后备值）
             var selectedCategories = string.Join(',', budget.SelectedCategories);
             var currentAmount = await CalculateCurrentAmountAsync(new()
             {
@@ -220,34 +228,21 @@ public class BudgetService(
                 StartDate = new DateTime(referenceDate.Year, referenceDate.Month, 1),
                 IsMandatoryExpense = budget.IsMandatoryExpense
             }, referenceDate);
+
             if (budget.Type == statType)
             {
                 totalCurrent += currentAmount;
             }
-            else
+            else if (statType == BudgetPeriodType.Year && budget.Type == BudgetPeriodType.Month)
             {
-                // 如果周期不匹配
+                // 年度视图下，月度预算计入其当前值（作为对年度目前的贡献）
-                if (statType == BudgetPeriodType.Year && budget.Type == BudgetPeriodType.Month)
-                {
-                    // 在年度视图下，月度预算计入其当前值（作为对年度目前的贡献）
                 totalCurrent += currentAmount;
             }
-                // 月度视图下，年度预算的 current 不计入
-            }
         }
 
         result.Limit = totalLimit;
-        result.Current = totalCurrent;
-        result.Rate = totalLimit > 0 ? totalCurrent / totalLimit * 100 : 0;
 
         // 计算每日/每月趋势
-        var transactionType = category switch
-        {
-            BudgetCategory.Expense => TransactionType.Expense,
-            BudgetCategory.Income => TransactionType.Income,
-            _ => TransactionType.None
-        };
-
         if (transactionType != TransactionType.None)
         {
             var hasGlobalBudget = relevant.Any(b => b.SelectedCategories.Length == 0);
@@ -283,6 +278,7 @@ public class BudgetService(
                 groupByMonth);
 
             decimal accumulated = 0;
+            decimal lastValidAccumulated = 0;
             var now = dateTimeProvider.Now;
 
             if (statType == BudgetPeriodType.Month)
@@ -300,6 +296,7 @@ public class BudgetService(
                     if (dailyStats.TryGetValue(currentDate.Date, out var amount))
                     {
                         accumulated += amount;
+                        lastValidAccumulated = accumulated;
                     }
                     result.Trend.Add(accumulated);
                 }
@@ -319,11 +316,22 @@ public class BudgetService(
                     if (dailyStats.TryGetValue(currentMonthDate, out var amount))
                     {
                         accumulated += amount;
+                        lastValidAccumulated = accumulated;
                     }
                     result.Trend.Add(accumulated);
                 }
             }
+
+            // 如果有有效的趋势数据，使用去重后的实际发生额（趋势的累计值），避免同一账单被多预算重复计入
+            // 否则使用前面逐预算累加的值（作为后备）
+            if (lastValidAccumulated > 0)
+            {
+                totalCurrent = lastValidAccumulated;
             }
+        }
+
+        result.Current = totalCurrent;
+        result.Rate = totalLimit > 0 ? totalCurrent / totalLimit * 100 : 0;
 
         return result;
     }

Web/src/views/StatisticsView.vue

@@ -1412,7 +1412,6 @@ onBeforeUnmount(() => {
 
 .balance-chart {
   border-radius: 8px;
-  background: rgba(0, 0, 0, 0.02);
   padding: 10px 0;
   margin: 0 -12px;
 }