diff --git a/Web/src/api/statistics.js b/Web/src/api/statistics.js
index f935d16..8e23136 100644
--- a/Web/src/api/statistics.js
+++ b/Web/src/api/statistics.js
@@ -101,3 +101,21 @@ export const getDailyStatisticsRange = (params) => {
     params
   })
 }
+
+/**
+ * 获取累积余额统计数据（用于余额卡片）
+ * @param {Object} params - 查询参数
+ * @param {number} params.year - 年份
+ * @param {number} params.month - 月份
+ * @returns {Promise<{success: boolean, data: Array}>}
+ * @returns {Array} data - 每日累积余额列表
+ * @returns {string} data[].date - 日期
+ * @returns {number} data[].cumulativeBalance - 累积余额
+ */
+export const getBalanceStatistics = (params) => {
+  return request({
+    url: '/TransactionRecord/GetBalanceStatistics',
+    method: 'get',
+    params
+  })
+}
diff --git a/Web/src/assets/base.css b/Web/src/assets/base.css
index 9e6408d..18bc788 100644
--- a/Web/src/assets/base.css
+++ b/Web/src/assets/base.css
@@ -31,7 +31,7 @@
   --chart-color-10: #aab7b8;
   --chart-color-11: #ff8ed4;
   --chart-color-12: #67e6dc;
-  --chart-color-13: #ffab73;
+  --chart-color-13: #5b8dee;
   --chart-color-14: #c9b1ff;
   --chart-color-15: #7bdff2;
 
@@ -87,7 +87,6 @@ body {
     background-color 0.5s;
   line-height: 1.6;
   font-family:
-    Inter,
     -apple-system,
     BlinkMacSystemFont,
     'Segoe UI',
diff --git a/Web/src/components/Budget/BudgetChartAnalysis.vue b/Web/src/components/Budget/BudgetChartAnalysis.vue
index 08cce98..b22fb11 100644
--- a/Web/src/components/Budget/BudgetChartAnalysis.vue
+++ b/Web/src/components/Budget/BudgetChartAnalysis.vue
@@ -11,11 +11,25 @@
             (月度)
           </div>
         </div>
-        <div
-          ref="monthGaugeRef"
-          class="chart-body gauge-chart"
-          :style="{ transform: activeTab === BudgetCategory.Expense ? 'scaleX(-1)' : '' }"
-        />
+        <div class="gauge-wrapper">
+          <div
+            ref="monthGaugeRef"
+            class="chart-body gauge-chart"
+            :style="{ transform: activeTab === BudgetCategory.Expense ? 'scaleX(-1)' : '' }"
+          />
+          <div class="gauge-text-overlay">
+            <div
+              class="remaining-label"
+            >
+              {{ activeTab === BudgetCategory.Expense ? '余额' : '差额' }}
+            </div>
+            <div
+              class="remaining-value"
+            >
+              ¥{{ formatMoney(Math.max(0, overallStats.month.limit - overallStats.month.current)) }}
+            </div>
+          </div>
+        </div>
         <div class="gauge-footer compact">
           <div class="gauge-item">
             <span class="label">
@@ -40,11 +54,25 @@
             (年度)
           </div>
         </div>
-        <div
-          ref="yearGaugeRef"
-          class="chart-body gauge-chart"
-          :style="{ transform: activeTab === BudgetCategory.Expense ? 'scaleX(-1)' : '' }"
-        />
+        <div class="gauge-wrapper">
+          <div
+            ref="yearGaugeRef"
+            class="chart-body gauge-chart"
+            :style="{ transform: activeTab === BudgetCategory.Expense ? 'scaleX(-1)' : '' }"
+          />
+          <div class="gauge-text-overlay">
+            <div
+              class="remaining-label"
+            >
+              {{ activeTab === BudgetCategory.Expense ? '余额' : '差额' }}
+            </div>
+            <div
+              class="remaining-value"
+            >
+              ¥{{ formatMoney(Math.max(0, overallStats.year.limit - overallStats.year.current)) }}
+            </div>
+          </div>
+        </div>
         <div class="gauge-footer compact">
           <div class="gauge-item">
             <span class="label">
@@ -255,12 +283,13 @@ const updateSingleGauge = (chart, data, isExpense) => {
           valueAnimation: true,
           fontSize: 24, // 字体调小
           offsetCenter: [0, -5],
-          color: 'var(--van-text-color)',
+          color: getCssVar('--van-text-color'),
           formatter: '{value}%',
           fontWeight: 'bold',
-          fontFamily: 'DIN Alternate, system-ui'
+          fontFamily: 'DIN Alternate, system-ui',
+          show: false
         },
-        data: [{ value: displayRate }]
+        data: [{ value: displayRate.toFixed(0) }]
       }
     ]
   }
@@ -872,6 +901,42 @@ onUnmounted(() => {
   /* 减小内边距 */
 }
 
+.gauge-wrapper {
+  position: relative;
+  width: 100%;
+  height: 120px;
+}
+
+.gauge-text-overlay {
+  position: absolute;
+  bottom: 20%;
+  left: 50%;
+  transform: translateX(-50%);
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  pointer-events: none;
+  z-index: 10;
+}
+
+.remaining-value {
+  font-size: 24px;
+  font-weight: bold;
+  font-family: DIN Alternate, system-ui;
+  color: var(--van-text-color);
+  line-height: 1;
+  transform-origin: center;
+}
+
+.remaining-label {
+  font-size: 10px;
+  color: var(--van-text-color-2);
+  margin-top: 4px;
+  font-family: system-ui;
+  transform-origin: center;
+}
+
 .chart-header {
   margin-bottom: 12px;
 }
diff --git a/Web/src/views/BudgetView.vue b/Web/src/views/BudgetView.vue
index d9f96ec..d3f2b1b 100644
--- a/Web/src/views/BudgetView.vue
+++ b/Web/src/views/BudgetView.vue
@@ -77,7 +77,7 @@
       </van-tab>
 
       <van-tab
-        title="存款"
+        title="计划"
         :name="BudgetCategory.Savings"
       >
         <van-pull-refresh
@@ -108,7 +108,7 @@
                   </div>
                   <div class="info-item">
                     <div class="label">
-                      目标
+                      计划存款
                     </div>
                     <div class="value">
                       ¥{{ formatMoney(budget.limit) }}
diff --git a/Web/src/views/PeriodicRecord.vue b/Web/src/views/PeriodicRecord.vue
index 4b6a5c5..b521092 100644
--- a/Web/src/views/PeriodicRecord.vue
+++ b/Web/src/views/PeriodicRecord.vue
@@ -9,9 +9,16 @@
     />
 
     <!-- 下拉刷新区域 -->
-    <van-pull-refresh v-model="refreshing" @refresh="onRefresh">
+    <van-pull-refresh
+      v-model="refreshing"
+      @refresh="onRefresh"
+    >
       <!-- 加载提示 -->
-      <van-loading v-if="loading && !periodicList.length" vertical style="padding: 50px 0">
+      <van-loading
+        v-if="loading && !periodicList.length"
+        vertical
+        style="padding: 50px 0"
+      >
         加载中...
       </van-loading>
 
@@ -23,10 +30,18 @@
         class="periodic-list"
         @load="onLoad"
       >
-        <van-cell-group v-for="item in periodicList" :key="item.id" inset class="periodic-item">
+        <van-cell-group
+          v-for="item in periodicList"
+          :key="item.id"
+          inset
+          class="periodic-item"
+        >
           <van-swipe-cell>
             <div @click="editPeriodic(item)">
-              <van-cell :title="item.reason || '无摘要'" :label="getPeriodicTypeText(item)">
+              <van-cell
+                :title="item.reason || '无摘要'"
+                :label="getPeriodicTypeText(item)"
+              >
                 <template #value>
                   <div class="amount-info">
                     <span :class="['amount', item.type === 1 ? 'income' : 'expense']">
@@ -35,7 +50,10 @@
                   </div>
                 </template>
               </van-cell>
-              <van-cell title="分类" :value="item.classify || '未分类'" />
+              <van-cell
+                title="分类"
+                :value="item.classify || '未分类'"
+              />
               <van-cell
                 title="下次执行时间"
                 :value="formatDateTime(item.nextExecuteTime) || '未设置'"
@@ -77,7 +95,13 @@
 
     <!-- 底部新增按钮 -->
     <div class="bottom-button">
-      <van-button type="primary" size="large" round icon="plus" @click="openAddDialog">
+      <van-button
+        type="primary"
+        size="large"
+        round
+        icon="plus"
+        @click="openAddDialog"
+      >
         新增周期账单
       </van-button>
     </div>
@@ -89,7 +113,10 @@
       height="75%"
     >
       <van-form>
-        <van-cell-group inset title="周期设置">
+        <van-cell-group
+          inset
+          title="周期设置"
+        >
           <van-field
             v-model="form.periodicTypeText"
             is-link
@@ -150,7 +177,10 @@
           />
         </van-cell-group>
 
-        <van-cell-group inset title="基本信息">
+        <van-cell-group
+          inset
+          title="基本信息"
+        >
           <van-field
             v-model="form.reason"
             name="reason"
@@ -170,35 +200,68 @@
             type="number"
             :rules="[{ required: true, message: '请输入金额' }]"
           />
-          <van-field v-model="form.type" name="type" label="类型">
+          <van-field
+            v-model="form.type"
+            name="type"
+            label="类型"
+          >
             <template #input>
-              <van-radio-group v-model="form.type" direction="horizontal">
-                <van-radio :name="0"> 支出 </van-radio>
-                <van-radio :name="1"> 收入 </van-radio>
-                <van-radio :name="2"> 不计 </van-radio>
+              <van-radio-group
+                v-model="form.type"
+                direction="horizontal"
+              >
+                <van-radio :value="0">
+                  支出
+                </van-radio>
+                <van-radio :value="1">
+                  收入
+                </van-radio>
+                <van-radio :value="2">
+                  不计
+                </van-radio>
               </van-radio-group>
             </template>
           </van-field>
-          <van-field name="classify" label="分类">
+          <van-field
+            name="classify"
+            label="分类"
+          >
             <template #input>
-              <span v-if="!form.classify" style="color: var(--van-gray-5)">请选择交易分类</span>
+              <span
+                v-if="!form.classify"
+                style="color: var(--van-gray-5)"
+              >请选择交易分类</span>
               <span v-else>{{ form.classify }}</span>
             </template>
           </van-field>
 
           <!-- 分类选择组件 -->
-          <ClassifySelector v-model="form.classify" :type="form.type" />
+          <ClassifySelector
+            v-model="form.classify"
+            :type="form.type"
+          />
         </van-cell-group>
       </van-form>
       <template #footer>
-        <van-button round block type="primary" :loading="submitting" @click="submit">
+        <van-button
+          round
+          block
+          type="primary"
+          :loading="submitting"
+          @click="submit"
+        >
           {{ isEdit ? '更新' : '确认添加' }}
         </van-button>
       </template>
     </PopupContainer>
 
     <!-- 周期类型选择器 -->
-    <van-popup v-model:show="showPeriodicTypePicker" position="bottom" round teleport="body">
+    <van-popup
+      v-model:show="showPeriodicTypePicker"
+      position="bottom"
+      round
+      teleport="body"
+    >
       <van-picker
         :columns="periodicTypeColumns"
         @confirm="onPeriodicTypeConfirm"
@@ -207,7 +270,12 @@
     </van-popup>
 
     <!-- 星期选择器 -->
-    <van-popup v-model:show="showWeekdaysPicker" position="bottom" round teleport="body">
+    <van-popup
+      v-model:show="showWeekdaysPicker"
+      position="bottom"
+      round
+      teleport="body"
+    >
       <van-picker
         :columns="weekdaysColumns"
         @confirm="onWeekdaysConfirm"
@@ -216,7 +284,12 @@
     </van-popup>
 
     <!-- 日期选择器 -->
-    <van-popup v-model:show="showMonthDaysPicker" position="bottom" round teleport="body">
+    <van-popup
+      v-model:show="showMonthDaysPicker"
+      position="bottom"
+      round
+      teleport="body"
+    >
       <van-picker
         :columns="monthDaysColumns"
         @confirm="onMonthDaysConfirm"
@@ -233,7 +306,9 @@ import { showToast, showConfirmDialog } from 'vant'
 import {
   getPeriodicList,
   deletePeriodic as deletePeriodicApi,
-  togglePeriodicEnabled
+  togglePeriodicEnabled,
+  createPeriodic,
+  updatePeriodic
 } from '@/api/transactionPeriodic'
 import PopupContainer from '@/components/PopupContainer.vue'
 import ClassifySelector from '@/components/ClassifySelector.vue'
@@ -429,10 +504,10 @@ const editPeriodic = (item) => {
   form.id = item.id
   form.reason = item.reason
   form.amount = item.amount.toString()
-  form.type = item.type
+  form.type = parseInt(item.type)
   form.classify = item.classify
-  form.periodicType = item.periodicType
-  form.periodicTypeText = periodicTypeColumns.find((t) => t.value === item.periodicType)?.text || ''
+  form.periodicType = parseInt(item.periodicType)
+  form.periodicTypeText = periodicTypeColumns.find((t) => t.value === parseInt(item.periodicType))?.text || ''
 
   // 解析周期配置
   if (item.periodicConfig) {
@@ -557,6 +632,105 @@ const onMonthDaysConfirm = ({ selectedValues, selectedOptions }) => {
   form.monthDaysText = selectedOptions[0].text
   showMonthDaysPicker.value = false
 }
+
+// 提交表单
+const submit = async () => {
+  // 验证基本字段
+  if (!form.reason.trim()) {
+    showToast('请输入摘要')
+    return
+  }
+  if (!form.amount) {
+    showToast('请输入金额')
+    return
+  }
+  if (form.amount < 0) {
+    showToast('金额必须大于0')
+    return
+  }
+  if (!form.classify) {
+    showToast('请选择分类')
+    return
+  }
+
+  // 验证周期配置
+  if (!form.periodicTypeText) {
+    showToast('请选择周期类型')
+    return
+  }
+
+  let periodicConfig = ''
+  switch (form.periodicType) {
+    case 0: // 每天
+      periodicConfig = ''
+      break
+    case 1: // 每周
+      if (form.weekdays.length === 0) {
+        showToast('请选择星期几')
+        return
+      }
+      periodicConfig = form.weekdays.join(',')
+      break
+    case 2: // 每月
+      if (form.monthDays.length === 0) {
+        showToast('请选择日期')
+        return
+      }
+      periodicConfig = form.monthDays.join(',')
+      break
+    case 3: // 每季度
+      if (!form.quarterDay) {
+        showToast('请输入季度开始后第几天')
+        return
+      }
+      periodicConfig = form.quarterDay.toString()
+      break
+    case 4: // 每年
+      if (!form.yearDay) {
+        showToast('请输入年开始后第几天')
+        return
+      }
+      periodicConfig = form.yearDay.toString()
+      break
+  }
+
+  submitting.value = true
+  try {
+    const requestData = {
+      periodicType: parseInt(form.periodicType),
+      periodicConfig: periodicConfig,
+      amount: parseFloat(form.amount),
+      type: parseInt(form.type),
+      classify: form.classify,
+      reason: form.reason.trim()
+    }
+
+    let response
+    if (isEdit.value) {
+      // 更新
+      requestData.id = form.id
+      requestData.isEnabled = true // Update API 需要此字段
+      response = await updatePeriodic(requestData)
+    } else {
+      // 创建
+      response = await createPeriodic(requestData)
+    }
+
+    if (response.success) {
+      showToast(isEdit.value ? '更新成功' : '添加成功')
+      dialogVisible.value = false
+      resetForm()
+      loadData(true)
+    } else {
+      showToast(response.message || (isEdit.value ? '更新失败' : '添加失败'))
+    }
+  } catch (error) {
+    console.error('提交出错:', error)
+    showToast(isEdit.value ? '更新出错' : '添加出错')
+  } finally {
+    submitting.value = false
+  }
+}
 </script>
 
 <style scoped>
diff --git a/Web/src/views/StatisticsView.vue b/Web/src/views/StatisticsView.vue
index e7d9947..94d2f44 100644
--- a/Web/src/views/StatisticsView.vue
+++ b/Web/src/views/StatisticsView.vue
@@ -42,12 +42,51 @@
         class="statistics-content"
       >
         <div>
+          <!-- 余额卡片 -->
+          <div
+            class="common-card"
+            style="margin-top: 12px;"
+          >
+            <div
+              class="card-header"
+              style="padding-bottom: 0;"
+            >
+              <h3 class="card-title">
+                余额
+              </h3>
+            </div>
+
+            <!-- 余额金额 -->
+            <div class="balance-amount">
+              <span
+                class="balance-value"
+                :class="{ 'balance-positive': displayBalance >= 0, 'balance-negative': displayBalance < 0 }"
+              >
+                ¥{{ formatMoney(displayBalance) }}
+              </span>
+            </div>
+
+            <!-- 余额变化图表 -->
+            <div
+              class="balance-chart"
+              style="height: 130px; padding: 0"
+            >
+              <div
+                ref="balanceChartRef"
+                style="width: 100%; height: 100%"
+              />
+            </div>
+          </div>
+
           <!-- 趋势统计 -->
           <div
             class="common-card"
             style="padding-bottom: 5px; margin-top: 12px;"
           >
-            <div class="card-header">
+            <div
+              class="card-header"
+              style="padding-bottom: 0;"
+            >
               <h3 class="card-title">
                 收支趋势
               </h3>
@@ -288,7 +327,7 @@ import { ref, computed, onMounted, onActivated, nextTick, watch } from 'vue'
 import { onBeforeUnmount } from 'vue'
 import { showToast } from 'vant'
 import { useRouter } from 'vue-router'
-import { getMonthlyStatistics, getCategoryStatistics, getDailyStatistics } from '@/api/statistics'
+import { getMonthlyStatistics, getCategoryStatistics, getDailyStatistics, getBalanceStatistics } from '@/api/statistics'
 import * as echarts from 'echarts'
 import { getTransactionList, getTransactionDetail } from '@/api/transactionRecord'
 import TransactionList from '@/components/TransactionList.vue'
@@ -392,10 +431,14 @@ const noneCategoriesView = computed(() => {
 
 // 趋势数据
 const dailyData = ref([])
+// 余额数据（独立）
+const balanceData = ref([])
 const chartRef = ref(null)
 const pieChartRef = ref(null)
+const balanceChartRef = ref(null)
 let chartInstance = null
 let pieChartInstance = null
+let balanceChartInstance = null
 
 // 日期范围
 const minDate = new Date(2020, 0, 1)
@@ -425,6 +468,50 @@ const isUnclassified = computed(() => {
   return selectedClassify.value === '未分类' || selectedClassify.value === ''
 })
 
+// 当月累积余额
+const currentMonthBalance = computed(() => {
+  if (balanceData.value.length === 0) {
+    return 0
+  }
+  // 获取最后一天的累积余额
+  return balanceData.value[balanceData.value.length - 1].cumulativeBalance || 0
+})
+
+// 显示的动画余额
+const displayBalance = ref(0)
+
+// 监听余额变化，执行动画
+watch(currentMonthBalance, (newVal, oldVal) => {
+  if (oldVal === undefined) {
+    // 初始加载，直接设置，不需要动画
+    displayBalance.value = newVal
+    return
+  }
+
+  // 数字跳动动画
+  const duration = 800 // 动画持续时间（毫秒）
+  const startValue = oldVal
+  const endValue = newVal
+  const startTime = Date.now()
+
+  const animate = () => {
+    const elapsed = Date.now() - startTime
+    const progress = Math.min(elapsed / duration, 1)
+
+    // 使用缓动函数（easeOutQuad）
+    const easeProgress = 1 - (1 - progress) * (1 - progress)
+    displayBalance.value = Math.round(startValue + (endValue - startValue) * easeProgress)
+
+    if (progress < 1) {
+      requestAnimationFrame(animate)
+    } else {
+      displayBalance.value = endValue
+    }
+  }
+
+  animate()
+})
+
 // 格式化金额
 const formatMoney = (value) => {
   if (!value && value !== 0) {
@@ -463,7 +550,7 @@ const fetchStatistics = async (showLoading = true) => {
   }
 
   try {
-    await Promise.all([fetchMonthlyData(), fetchCategoryData(), fetchDailyData()])
+    await Promise.all([fetchMonthlyData(), fetchCategoryData(), fetchDailyData(), fetchBalanceData()])
   } catch (error) {
     console.error('获取统计数据失败:', error)
     showToast('获取统计数据失败')
@@ -474,6 +561,7 @@ const fetchStatistics = async (showLoading = true) => {
     nextTick(() => {
       renderChart(dailyData.value)
       renderPieChart()
+      renderBalanceChart()
     })
   }
 }
@@ -576,6 +664,23 @@ const fetchDailyData = async () => {
   }
 }
 
+// 获取余额统计数据（独立接口）
+const fetchBalanceData = async () => {
+  try {
+    const response = await getBalanceStatistics({
+      year: currentYear.value,
+      month: currentMonth.value
+    })
+
+    if (response.success && response.data) {
+      balanceData.value = response.data
+    }
+  } catch (error) {
+    console.error('获取余额统计数据失败:', error)
+    showToast('获取余额统计数据失败')
+  }
+}
+
 const renderChart = (data) => {
   if (!chartRef.value) {
     return
@@ -670,6 +775,12 @@ const renderChart = (data) => {
     return accumulatedBalance
   })
 
+  const legendData = [
+    { name: '支出', value: '¥' + formatMoney(expenses[expenses.length - 1]) },
+    { name: '收入', value: '¥' + formatMoney(incomes[incomes.length - 1]) },
+    { name: '存款', value: '¥' + formatMoney(balances[balances.length - 1]) }
+  ]
+
   const option = {
     tooltip: {
       trigger: 'axis',
@@ -682,10 +793,14 @@ const renderChart = (data) => {
       }
     },
     legend: {
-      data: ['支出', '收入', '存款'],
+      data: legendData.map((item) => item.name),
       bottom: 0,
       textStyle: {
         color: getCssVar('--chart-text-muted') // 适配深色模式
+      },
+      formatter: function (name) {
+        const item = legendData.find((d) => d.name === name)
+        return item ? `${name}  ${item.value}` : name
       }
     },
     grid: {
@@ -876,6 +991,121 @@ const renderPieChart = () => {
   pieChartInstance.setOption(option)
 }
 
+// 渲染余额变化图表
+const renderBalanceChart = () => {
+  if (!balanceChartRef.value) {
+    return
+  }
+  if (balanceData.value.length === 0) {
+    return
+  }
+
+  // 尝试获取DOM上的现有实例
+  const existingInstance = echarts.getInstanceByDom(balanceChartRef.value)
+
+  if (balanceChartInstance && balanceChartInstance !== existingInstance) {
+    if (!balanceChartInstance.isDisposed()) {
+      balanceChartInstance.dispose()
+    }
+    balanceChartInstance = null
+  }
+
+  if (balanceChartInstance && balanceChartInstance.getDom() !== balanceChartRef.value) {
+    balanceChartInstance.dispose()
+    balanceChartInstance = null
+  }
+
+  if (!balanceChartInstance && existingInstance) {
+    balanceChartInstance = existingInstance
+  }
+
+  if (!balanceChartInstance) {
+    balanceChartInstance = echarts.init(balanceChartRef.value)
+  }
+
+  const dates = balanceData.value.map((item) => {
+    const date = new Date(item.date)
+    return `${date.getMonth() + 1}/${date.getDate()}`
+  })
+
+  const balances = balanceData.value.map((item) => item.cumulativeBalance)
+
+  const option = {
+    tooltip: {
+      trigger: 'axis',
+      formatter: function (params) {
+        if (params.length === 0) {
+          return ''
+        }
+        const param = params[0]
+        return `${param.name}<br/>余额: ¥${formatMoney(param.value)}`
+      }
+    },
+    grid: {
+      left: '3%',
+      right: '4%',
+      bottom: '5%',
+      top: '5%',
+      containLabel: true
+    },
+    xAxis: {
+      type: 'category',
+      boundaryGap: false,
+      data: dates,
+      axisLabel: {
+        color: getCssVar('--chart-text-muted'),
+        fontSize: 11
+      }
+    },
+    yAxis: {
+      type: 'value',
+      splitNumber: 4,
+      axisLabel: {
+        color: getCssVar('--chart-text-muted'),
+        fontSize: 11,
+        formatter: (value) => {
+          return value / 1000 + 'k'
+        }
+      },
+      splitLine: {
+        lineStyle: {
+          type: 'dashed',
+          color: getCssVar('--van-border-color')
+        }
+      }
+    },
+    series: [
+      {
+        name: '余额',
+        type: 'line',
+        data: balances,
+        itemStyle: { color: getCssVar('--chart-color-13') },
+        showSymbol: false,
+        smooth: true,
+        lineStyle: { width: 2 },
+        areaStyle: {
+          color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
+            {
+              offset: 0,
+              color: getCssVar('--chart-color-13')
+            },
+            {
+              offset: 1,
+              color: getCssVar('--chart-color-13')
+            }
+          ])
+        }
+      }
+    ]
+  }
+
+  balanceChartInstance.setOption(option)
+  // 设置图表透明度
+  if (balanceChartRef.value) {
+    balanceChartRef.value.style.opacity = '0.85'
+  }
+}
+
 // 跳转到智能分析页面
 const goToAnalysis = () => {
   router.push('/bill-analysis')
@@ -1061,6 +1291,7 @@ onMounted(() => {
 const handleResize = () => {
   chartInstance && chartInstance.resize()
   pieChartInstance && pieChartInstance.resize()
+  balanceChartInstance && balanceChartInstance.resize()
 }
 
 // 监听DOM引用变化，确保在月份切换DOM重建后重新渲染图表
@@ -1085,6 +1316,15 @@ watch(pieChartRef, (newVal) => {
   }
 })
 
+watch(balanceChartRef, (newVal) => {
+  if (newVal) {
+    setTimeout(() => {
+      renderBalanceChart()
+      balanceChartInstance && balanceChartInstance.resize()
+    }, 50)
+  }
+})
+
 // 页面激活时刷新数据（从其他页面返回时）
 onActivated(() => {
   fetchStatistics()
@@ -1105,6 +1345,7 @@ onBeforeUnmount(() => {
   window.removeEventListener('resize', handleResize)
   chartInstance && chartInstance.dispose()
   pieChartInstance && pieChartInstance.dispose()
+  balanceChartInstance && balanceChartInstance.dispose()
 })
 
 const onGlobalTransactionsChanged = () => {
@@ -1145,6 +1386,37 @@ onBeforeUnmount(() => {
   color: var(--van-text-color);
 }
 
+/* 余额卡片 */
+.balance-amount {
+  text-align: center;
+  padding: 9px 0 8px 0;
+  font-size: 32px;
+  font-weight: bold;
+  color: var(--van-text-color);
+  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
+  "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
+}
+
+.balance-value {
+  color: var(--chart-color-13);
+  transition: color 0.3s ease;
+}
+
+.balance-value.balance-positive {
+  color: var(--van-success-color);
+}
+
+.balance-value.balance-negative {
+  color: var(--van-danger-color);
+}
+
+.balance-chart {
+  border-radius: 8px;
+  background: rgba(0, 0, 0, 0.02);
+  padding: 10px 0;
+  margin: 0 -12px;
+}
+
 /* 环形图 */
 .chart-container {
   padding: 0;
@@ -1411,8 +1683,8 @@ onBeforeUnmount(() => {
   padding: 12px;
 }
 
-.side-by-side-cards .card-header {
-  margin-bottom: 12px;
+.card-header {
+  margin-bottom: 0;
 }
 
 .text-ellipsis {
diff --git a/WebApi/Controllers/TransactionRecordController.cs b/WebApi/Controllers/TransactionRecordController.cs
index 068a0cd..a9cf8c4 100644
--- a/WebApi/Controllers/TransactionRecordController.cs
+++ b/WebApi/Controllers/TransactionRecordController.cs
@@ -252,6 +252,48 @@ public class TransactionRecordController(
         }
     }
 
+    /// <summary>
+    /// 获取累积余额统计数据（用于余额卡片图表）
+    /// </summary>
+    [HttpGet]
+    public async Task<BaseResponse<List<BalanceStatisticsDto>>> GetBalanceStatisticsAsync(
+        [FromQuery] int year,
+        [FromQuery] int month
+    )
+    {
+        try
+        {
+            // 获取存款分类
+            var savingClassify = await configService.GetConfigByKeyAsync<string>("SavingsCategories");
+
+            // 获取每日统计数据
+            var statistics = await transactionRepository.GetDailyStatisticsAsync(year, month, savingClassify);
+            
+            // 按日期排序并计算累积余额
+            var sortedStats = statistics.OrderBy(s => s.Key).ToList();
+            var result = new List<BalanceStatisticsDto>();
+            decimal cumulativeBalance = 0;
+
+            foreach (var item in sortedStats)
+            {
+                decimal dailyBalance = item.Value.income - item.Value.expense;
+                cumulativeBalance += dailyBalance;
+
+                result.Add(new BalanceStatisticsDto(
+                    item.Key,
+                    cumulativeBalance
+                ));
+            }
+
+            return result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "获取累积余额统计失败，年份: {Year}, 月份: {Month}", year, month);
+            return $"获取累积余额统计失败: {ex.Message}".Fail<List<BalanceStatisticsDto>>();
+        }
+    }
+
     /// <summary>
     /// 获取指定月份每天的消费统计
     /// </summary>
@@ -311,7 +353,7 @@ public class TransactionRecordController(
                 s.Value.count,
                 s.Value.expense,
                 s.Value.income,
-                s.Value.income - s.Value.expense
+                s.Value.saving
             )).ToList();
 
             return result.Ok();
@@ -778,6 +820,14 @@ public record DailyStatisticsDto(
     decimal Balance
 );
 
+/// <summary>
+/// 累积余额统计DTO
+/// </summary>
+public record BalanceStatisticsDto(
+    string Date,
+    decimal CumulativeBalance
+);
+
 /// <summary>
 /// 智能分类请求DTO
 /// </summary>