fix

Service/BudgetService.cs

@@ -693,6 +693,7 @@ public class BudgetService(
         var totalExpense = expenseLimitAtPeriod + noLimitExpenseAtPeriod;
         description.Append($"<p>计划收入 = 预算 <span class='income-value'>{incomeLimitAtPeriod:N0}</span> + 不记额 <span class='income-value'>{noLimitIncomeAtPeriod:N0}</span> = <span class='income-value'><strong>{totalIncome:N0}</strong></span></p>");
         description.Append($"<p>计划支出 = 预算 <span class='expense-value'>{expenseLimitAtPeriod:N0}</span> + 不记额 <span class='expense-value'>{noLimitExpenseAtPeriod:N0}</span> = <span class='expense-value'><strong>{totalExpense:N0}</strong></span></p>");
+        description.Append($"<p>计划盈余 = 计划收入 <span class='income-value'>{totalIncome:N0}</span> - 计划支出 <span class='expense-value'>{totalExpense:N0}</span> = <span class='income-value'><strong>{totalIncome - totalExpense:N0}</strong></span></p>");
 
         decimal historicalSurplus = 0;
         if (periodType == BudgetPeriodType.Year)
@@ -744,11 +745,12 @@ public class BudgetService(
                 """);
             }
             var finalGoal = totalIncome - totalExpense + historicalSurplus;
-            description.Append($"<p>动态目标 = 计划盈余 <span class='highlight'>{totalIncome - totalExpense:N0}</span> + 历史盈亏 <span class='highlight'>{historicalSurplus:N0}</span> = <span class='highlight'><strong>{finalGoal:N0}</strong></span></p>");
-        }
-        else
-        {
-             description.Append($"<p>最终目标：<span class='highlight'><strong>{totalIncome - totalExpense:N0}</strong></span></p>");
+            description.Append($"""
+                <p>
+                    动态目标 = 计划盈余 <span class='{(totalIncome - totalExpense >= 0 ? "income-value" : "expense-value")}'>{totalIncome - totalExpense:N0}</span>
+                    + 年度历史盈亏 <span class='{(historicalSurplus >= 0 ? "income-value" : "expense-value")}'>{historicalSurplus:N0}</span> 
+                    = <span class='{(finalGoal >= 0 ? "income-value" : "expense-value")}'><strong>{finalGoal:N0}</strong></span></p>
+                """);
         }
 
         var finalLimit = periodType == BudgetPeriodType.Year ? (totalIncome - totalExpense + historicalSurplus) : (totalIncome - totalExpense);

Web/src/views/BudgetView.vue

@@ -180,7 +180,6 @@
                       type="primary"
                       @click.stop="handleSavingsNav(budget, -1)"
                     >
-                      {{ budget.type === BudgetPeriodType.Year ? '上一年' : '上一月' }}
                     </van-button>
                     <span class="current-date-label">
                       {{ getSavingsDateLabel(budget) }}
@@ -191,9 +190,9 @@
                       plain 
                       type="primary"
                       icon-position="right"
+                      :disabled="disabledSavingsNextNav(budget)"
                       @click.stop="handleSavingsNav(budget, 1)"
                     >
-                      {{ budget.type === BudgetPeriodType.Year ? '下一年' : '下一月' }}
                     </van-button>
                   </div>
                 </template>
@@ -613,6 +612,17 @@ const handleSavingsNav = async (budget, offset) => {
     showToast('切换日期失败')
   }
 }
+
+const disabledSavingsNextNav = (budget) => {
+  if (!budget.periodStart) return true
+  const date = new Date(budget.periodStart)
+  const now = new Date()
+  if (budget.type === BudgetPeriodType.Year) {
+    return date.getFullYear() === now.getFullYear()
+  } else {
+    return date.getFullYear() === now.getFullYear() && date.getMonth() === now.getMonth()
+  }
+}
 </script>
 
 <style scoped>
@@ -622,7 +632,7 @@ const handleSavingsNav = async (budget, offset) => {
   align-items: center;
   margin-top: 12px;
   padding-top: 12px;
-  border-top: 1px dashed var(--van-gray-3);
+  border-top: 1px solid var(--van-border-color);
 }
 
 .current-date-label {