diff --git a/package.json b/package.json
index 055bba9..d9a1c8a 100644
--- a/package.json
+++ b/package.json
@@ -36,9 +36,11 @@
     "@zumer/snapdom": "^2.0.1",
     "ai": "^6.0.41",
     "better-sqlite3": "^12.4.6",
+    "echarts": "^6.0.0",
     "electron-updater": "^6.6.2",
     "markdown-it": "^14.1.0",
     "stream-json": "^1.9.1",
+    "vue-echarts": "^8.0.1",
     "vue-i18n": "^11.2.8",
     "zod": "^4.3.5"
   },
@@ -57,7 +59,6 @@
     "@vue/eslint-config-prettier": "^10.2.0",
     "@vueuse/core": "^13.9.0",
     "axios": "^1.13.2",
-    "chart.js": "^4.5.1",
     "cross-env": "^7.0.3",
     "dayjs": "^1.11.19",
     "electron": "^35.0.0",
@@ -72,7 +73,6 @@
     "tailwindcss": "^4.0.0",
     "vite": "^6.3.5",
     "vue": "^3.5.25",
-    "vue-chartjs": "^5.3.3",
     "vue-router": "^4.6.3"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b80982d..af3c878 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -38,6 +38,9 @@ importers:
       better-sqlite3:
         specifier: ^12.4.6
         version: 12.5.0
+      echarts:
+        specifier: ^6.0.0
+        version: 6.0.0
       electron-updater:
         specifier: ^6.6.2
         version: 6.7.3
@@ -47,6 +50,9 @@ importers:
       stream-json:
         specifier: ^1.9.1
         version: 1.9.1
+      vue-echarts:
+        specifier: ^8.0.1
+        version: 8.0.1(echarts@6.0.0)(vue@3.5.26(typescript@5.9.3))
       vue-i18n:
         specifier: ^11.2.8
         version: 11.2.8(vue@3.5.26(typescript@5.9.3))
@@ -96,9 +102,6 @@ importers:
       axios:
         specifier: ^1.13.2
         version: 1.13.2
-      chart.js:
-        specifier: ^4.5.1
-        version: 4.5.1
       cross-env:
         specifier: ^7.0.3
         version: 7.0.3
@@ -141,9 +144,6 @@ importers:
       vue:
         specifier: ^3.5.25
         version: 3.5.26(typescript@5.9.3)
-      vue-chartjs:
-        specifier: ^5.3.3
-        version: 5.3.3(chart.js@4.5.1)(vue@3.5.26(typescript@5.9.3))
       vue-router:
         specifier: ^4.6.3
         version: 4.6.4(vue@3.5.26(typescript@5.9.3))
@@ -677,9 +677,6 @@ packages:
   '@jridgewell/trace-mapping@0.3.31':
     resolution: {integrity: sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==}
 
-  '@kurkle/color@0.3.4':
-    resolution: {integrity: sha512-M5UknZPHRu3DEDWoipU6sE8PdkZ6Z/S+v4dD+Ke8IaNlpdSQah50lz1KtcFBa2vsdOnwbbnxJwVM4wty6udA5w==}
-
   '@malept/cross-spawn-promise@2.0.0':
     resolution: {integrity: sha512-1DpKU0Z5ThltBwjNySMC14g0CkbyhCaz9FkhxqNsZI6uAPJXFS8cMXlBKo26FJ8ZuW6S9GCMcR9IO5k2X5/9Fg==}
     engines: {node: '>= 12.13.0'}
@@ -1790,10 +1787,6 @@ packages:
     resolution: {integrity: sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==}
     engines: {node: '>=10'}
 
-  chart.js@4.5.1:
-    resolution: {integrity: sha512-GIjfiT9dbmHRiYi6Nl2yFCq7kkwdkp1W/lp2J99rX0yo9tgJGn3lKQATztIjb5tVtevcBtIdICNWqlq5+E8/Pw==}
-    engines: {pnpm: '>=8'}
-
   chokidar@4.0.3:
     resolution: {integrity: sha512-Qgzu8kfBvo+cA4962jnP1KkS6Dop5NS6g7R5LFYJr4b8Ub94PPQXUksCw9PvXoeXPRRddRNC5C1JQUR2SMGtnA==}
     engines: {node: '>= 14.16.0'}
@@ -2028,6 +2021,9 @@ packages:
   eastasianwidth@0.2.0:
     resolution: {integrity: sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==}
 
+  echarts@6.0.0:
+    resolution: {integrity: sha512-Tte/grDQRiETQP4xz3iZWSvoHrkCQtwqd6hs+mifXcjrCuo2iKWbajFObuLJVBlDIJlOzgQPd1hsaKt/3+OMkQ==}
+
   ejs@3.1.10:
     resolution: {integrity: sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA==}
     engines: {node: '>=0.10.0'}
@@ -3735,6 +3731,9 @@ packages:
     peerDependencies:
       typescript: '>=4.8.4'
 
+  tslib@2.3.0:
+    resolution: {integrity: sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg==}
+
   tslib@2.8.1:
     resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
 
@@ -3975,12 +3974,6 @@ packages:
       yaml:
         optional: true
 
-  vue-chartjs@5.3.3:
-    resolution: {integrity: sha512-jqxtL8KZ6YJ5NTv6XzrzLS7osyegOi28UGNZW0h9OkDL7Sh1396ht4Dorh04aKrl2LiSalQ84WtqiG0RIJb0tA==}
-    peerDependencies:
-      chart.js: ^4.1.1
-      vue: ^3.0.0-0 || ^2.7.0
-
   vue-component-type-helpers@3.2.2:
     resolution: {integrity: sha512-x8C2nx5XlUNM0WirgfTkHjJGO/ABBxlANZDtHw2HclHtQnn+RFPTnbjMJn8jHZW4TlUam0asHcA14lf1C6Jb+A==}
 
@@ -3995,6 +3988,12 @@ packages:
       '@vue/composition-api':
         optional: true
 
+  vue-echarts@8.0.1:
+    resolution: {integrity: sha512-23rJTFLu1OUEGRWjJGmdGt8fP+8+ja1gVgzMYPIPaHWpXegcO1viIAaeu2H4QHESlVeHzUAHIxKXGrwjsyXAaA==}
+    peerDependencies:
+      echarts: ^6.0.0
+      vue: ^3.3.0
+
   vue-eslint-parser@9.4.3:
     resolution: {integrity: sha512-2rYRLWlIpaiN8xbPiDyXZXRgLGOtWxERV7ND5fFAv5qo1D2N9Fu9MNajBNc6o13lZ+24DAWCkQCvj4klgmcITg==}
     engines: {node: ^14.17.0 || >=16.0.0}
@@ -4117,6 +4116,9 @@ packages:
   zod@4.3.5:
     resolution: {integrity: sha512-k7Nwx6vuWx1IJ9Bjuf4Zt1PEllcwe7cls3VNzm4CQ1/hgtFUK2bRNG3rvnpPUhFjmqJKAKtjV576KnUkHocg/g==}
 
+  zrender@6.0.0:
+    resolution: {integrity: sha512-41dFXEEXuJpNecuUQq6JlbybmnHaqqpGlbH1yxnA5V9MMP4SbohSVZsJIwz+zdjQXSSlR1Vc34EgH1zxyTDvhg==}
+
 snapshots:
 
   7zip-bin@5.2.0: {}
@@ -4686,8 +4688,6 @@ snapshots:
       '@jridgewell/resolve-uri': 3.1.2
       '@jridgewell/sourcemap-codec': 1.5.5
 
-  '@kurkle/color@0.3.4': {}
-
   '@malept/cross-spawn-promise@2.0.0':
     dependencies:
       cross-spawn: 7.0.6
@@ -6042,10 +6042,6 @@ snapshots:
       ansi-styles: 4.3.0
       supports-color: 7.2.0
 
-  chart.js@4.5.1:
-    dependencies:
-      '@kurkle/color': 0.3.4
-
   chokidar@4.0.3:
     dependencies:
       readdirp: 4.1.2
@@ -6262,6 +6258,11 @@ snapshots:
 
   eastasianwidth@0.2.0: {}
 
+  echarts@6.0.0:
+    dependencies:
+      tslib: 2.3.0
+      zrender: 6.0.0
+
   ejs@3.1.10:
     dependencies:
       jake: 10.9.4
@@ -8134,6 +8135,8 @@ snapshots:
     dependencies:
       typescript: 5.9.3
 
+  tslib@2.3.0: {}
+
   tslib@2.8.1: {}
 
   tunnel-agent@0.6.0:
@@ -8323,17 +8326,17 @@ snapshots:
       lightningcss: 1.30.2
       yaml: 2.8.2
 
-  vue-chartjs@5.3.3(chart.js@4.5.1)(vue@3.5.26(typescript@5.9.3)):
-    dependencies:
-      chart.js: 4.5.1
-      vue: 3.5.26(typescript@5.9.3)
-
   vue-component-type-helpers@3.2.2: {}
 
   vue-demi@0.14.10(vue@3.5.26(typescript@5.9.3)):
     dependencies:
       vue: 3.5.26(typescript@5.9.3)
 
+  vue-echarts@8.0.1(echarts@6.0.0)(vue@3.5.26(typescript@5.9.3)):
+    dependencies:
+      echarts: 6.0.0
+      vue: 3.5.26(typescript@5.9.3)
+
   vue-eslint-parser@9.4.3(eslint@9.39.2(jiti@2.6.1)):
     dependencies:
       debug: 4.4.3
@@ -8451,3 +8454,7 @@ snapshots:
   yocto-queue@0.1.0: {}
 
   zod@4.3.5: {}
+
+  zrender@6.0.0:
+    dependencies:
+      tslib: 2.3.0
diff --git a/src/components/analysis/Overview/ActivityTimeDistribution.vue b/src/components/analysis/Overview/ActivityTimeDistribution.vue
index c96ef17..3135ea0 100644
--- a/src/components/analysis/Overview/ActivityTimeDistribution.vue
+++ b/src/components/analysis/Overview/ActivityTimeDistribution.vue
@@ -2,8 +2,8 @@
 import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import type { HourlyActivity, WeekdayActivity, MonthlyActivity } from '@/types/analysis'
-import { BarChart } from '@/components/charts'
-import type { BarChartData } from '@/components/charts'
+import { EChartBar } from '@/components/charts'
+import type { EChartBarData } from '@/components/charts'
 import { SectionCard } from '@/components/UI'
 
 const { t, locale } = useI18n()
@@ -20,7 +20,7 @@ const props = defineProps<{
 
 // --- 24小时分布逻辑 ---
 // 24小时分布图数据
-const hourlyChartData = computed<BarChartData>(() => {
+const hourlyChartData = computed<EChartBarData>(() => {
   return {
     labels: props.hourlyActivity.map((h) => `${h.hour}:00`),
     values: props.hourlyActivity.map((h) => h.messageCount),
@@ -60,7 +60,7 @@ const eveningRatio = computed(() => {
 
 // --- 星期分布逻辑 ---
 // 星期分布图数据
-const weekdayChartData = computed<BarChartData>(() => {
+const weekdayChartData = computed<EChartBarData>(() => {
   return {
     labels: props.weekdayActivity.map((w) => props.weekdayNames[w.weekday - 1]),
     values: props.weekdayActivity.map((w) => w.messageCount),
@@ -69,7 +69,7 @@ const weekdayChartData = computed<BarChartData>(() => {
 
 // --- 月份分布逻辑 ---
 // 月份分布图数据
-const monthlyChartData = computed<BarChartData>(() => {
+const monthlyChartData = computed<EChartBarData>(() => {
   return {
     labels: props.monthlyActivity.map((m) => {
       // 中文用 X月，英文用 Jan, Feb 等
@@ -89,11 +89,7 @@ const monthlyChartData = computed<BarChartData>(() => {
     <!-- 24小时分布 -->
     <SectionCard :title="t('hourlyTitle')" :show-divider="false">
       <div class="p-5">
-        <BarChart
-          :data="hourlyChartData"
-          :height="256"
-          :x-label-filter="(_, index) => (index % 3 === 0 ? `${index}:00` : '')"
-        />
+        <EChartBar :data="hourlyChartData" :height="256" />
 
         <div class="mt-6 grid grid-cols-4 gap-2">
           <div class="text-center">
@@ -135,7 +131,7 @@ const monthlyChartData = computed<BarChartData>(() => {
           <UIcon name="i-heroicons-arrow-path" class="h-6 w-6 animate-spin text-pink-500" />
         </div>
         <template v-else>
-          <BarChart :data="weekdayChartData" :height="256" />
+          <EChartBar :data="weekdayChartData" :height="256" />
 
           <div class="mt-6 grid grid-cols-2 gap-4">
             <div class="text-center">
@@ -173,7 +169,7 @@ const monthlyChartData = computed<BarChartData>(() => {
         <div v-if="isLoadingMonthly" class="flex h-64 items-center justify-center">
           <UIcon name="i-heroicons-arrow-path" class="h-6 w-6 animate-spin text-pink-500" />
         </div>
-        <BarChart v-else :data="monthlyChartData" :height="256" />
+        <EChartBar v-else :data="monthlyChartData" :height="256" />
       </div>
     </SectionCard>
   </div>
diff --git a/src/components/analysis/Overview/DailyTrendCard.vue b/src/components/analysis/Overview/DailyTrendCard.vue
index 78f000d..3783486 100644
--- a/src/components/analysis/Overview/DailyTrendCard.vue
+++ b/src/components/analysis/Overview/DailyTrendCard.vue
@@ -1,22 +1,22 @@
 <script setup lang="ts">
 import { useI18n } from 'vue-i18n'
 import { SectionCard } from '@/components/UI'
-import { LineChart } from '@/components/charts'
-import type { LineChartData } from '@/components/charts'
+import { EChartLine } from '@/components/charts'
+import type { EChartLineData } from '@/components/charts'
 import type { DailyActivity } from '@/types/analysis'
 
 const { t } = useI18n()
 
 defineProps<{
   dailyActivity: DailyActivity[]
-  dailyChartData: LineChartData
+  dailyChartData: EChartLineData
 }>()
 </script>
 
 <template>
   <SectionCard v-if="dailyActivity.length > 0" :title="t('title')" :show-divider="false">
     <div class="p-5">
-      <LineChart :data="dailyChartData" :height="288" />
+      <EChartLine :data="dailyChartData" :height="288" />
     </div>
   </SectionCard>
 </template>
diff --git a/src/components/charts/BarChart.vue b/src/components/charts/BarChart.vue
deleted file mode 100644
index 910f2fc..0000000
--- a/src/components/charts/BarChart.vue
+++ /dev/null
@@ -1,131 +0,0 @@
-<script setup lang="ts">
-import { computed } from 'vue'
-import { useI18n } from 'vue-i18n'
-import { Bar } from 'vue-chartjs'
-import { Chart as ChartJS, CategoryScale, LinearScale, BarElement, Title, Tooltip, Legend } from 'chart.js'
-
-ChartJS.register(CategoryScale, LinearScale, BarElement, Title, Tooltip, Legend)
-
-const { t } = useI18n()
-
-export interface BarChartData {
-  labels: string[]
-  values: number[]
-  colors?: string[]
-}
-
-interface Props {
-  data: BarChartData
-  height?: number
-  showLegend?: boolean
-  borderRadius?: number
-  colorMode?: 'static' | 'gradient' // static: 使用提供的colors, gradient: 根据值自动渐变
-  xLabelFilter?: (label: string, index: number) => string
-}
-
-const props = withDefaults(defineProps<Props>(), {
-  height: 256,
-  showLegend: false,
-  borderRadius: 4,
-  colorMode: 'gradient',
-})
-
-// 根据数据值计算渐变颜色
-const calculateColors = computed(() => {
-  if (props.colorMode === 'static' && props.data.colors) {
-    return props.data.colors
-  }
-
-  const maxValue = Math.max(...props.data.values)
-  return props.data.values.map((value) => {
-    const intensity = value / maxValue
-    if (intensity > 0.8) return '#6366f1'
-    if (intensity > 0.6) return '#818cf8'
-    if (intensity > 0.4) return '#a5b4fc'
-    if (intensity > 0.2) return '#c7d2fe'
-    return '#e0e7ff'
-  })
-})
-
-const chartData = computed(() => {
-  return {
-    labels: props.data.labels,
-    datasets: [
-      {
-        label: t('count'),
-        data: props.data.values,
-        backgroundColor: calculateColors.value,
-        borderRadius: props.borderRadius,
-        borderSkipped: false,
-      },
-    ],
-  }
-})
-
-const chartOptions = computed(() => {
-  const options: any = {
-    responsive: true,
-    maintainAspectRatio: false,
-    plugins: {
-      legend: {
-        display: props.showLegend,
-      },
-      tooltip: {
-        backgroundColor: 'rgba(0, 0, 0, 0.8)',
-        padding: 12,
-        cornerRadius: 8,
-      },
-    },
-    scales: {
-      x: {
-        grid: {
-          display: false,
-        },
-        ticks: {
-          font: {
-            size: 10,
-          },
-        },
-      },
-      y: {
-        beginAtZero: true,
-        grid: {
-          color: 'rgba(0, 0, 0, 0.05)',
-        },
-        ticks: {
-          font: {
-            size: 11,
-          },
-        },
-      },
-    },
-  }
-
-  // 添加自定义 x 轴标签过滤器
-  if (props.xLabelFilter) {
-    options.scales.x.ticks.callback = function (this: any, _: unknown, index: number) {
-      const label = this.getLabelForValue(index)
-      return props.xLabelFilter!(label, index)
-    }
-  }
-
-  return options
-})
-</script>
-
-<template>
-  <div :style="{ height: `${height}px` }">
-    <Bar :data="chartData" :options="chartOptions" />
-  </div>
-</template>
-
-<i18n>
-{
-  "zh-CN": {
-    "count": "数量"
-  },
-  "en-US": {
-    "count": "Count"
-  }
-}
-</i18n>
diff --git a/src/components/charts/DoughnutChart.vue b/src/components/charts/DoughnutChart.vue
deleted file mode 100644
index 54612be..0000000
--- a/src/components/charts/DoughnutChart.vue
+++ /dev/null
@@ -1,82 +0,0 @@
-<script setup lang="ts">
-import { computed } from 'vue'
-import { Doughnut } from 'vue-chartjs'
-import { Chart as ChartJS, ArcElement, Tooltip, Legend } from 'chart.js'
-
-ChartJS.register(ArcElement, Tooltip, Legend)
-
-export interface DoughnutChartData {
-  labels: string[]
-  values: number[]
-  colors?: string[]
-}
-
-interface Props {
-  data: DoughnutChartData
-  cutout?: number | string
-  height?: number
-  showLegend?: boolean
-  legendPosition?: 'top' | 'bottom' | 'left' | 'right'
-}
-
-const props = withDefaults(defineProps<Props>(), {
-  cutout: '60%',
-  height: 256,
-  showLegend: true,
-  legendPosition: 'bottom',
-})
-
-// 默认颜色方案
-const defaultColors = [
-  '#6366f1', // indigo
-  '#8b5cf6', // violet
-  '#ec4899', // pink
-  '#f43f5e', // rose
-  '#f97316', // orange
-  '#eab308', // yellow
-  '#22c55e', // green
-  '#94a3b8', // gray
-]
-
-const chartData = computed(() => {
-  return {
-    labels: props.data.labels,
-    datasets: [
-      {
-        data: props.data.values,
-        backgroundColor: props.data.colors || defaultColors.slice(0, props.data.values.length),
-        borderWidth: 0,
-        hoverOffset: 4,
-      },
-    ],
-  }
-})
-
-const chartOptions = computed(() => ({
-  responsive: true,
-  maintainAspectRatio: false,
-  plugins: {
-    legend: {
-      display: props.showLegend,
-      position: props.legendPosition,
-      labels: {
-        padding: 16,
-        usePointStyle: true,
-        pointStyle: 'circle',
-      },
-    },
-    tooltip: {
-      backgroundColor: 'rgba(0, 0, 0, 0.8)',
-      padding: 12,
-      cornerRadius: 8,
-    },
-  },
-  cutout: props.cutout,
-}))
-</script>
-
-<template>
-  <div :style="{ height: `${height}px` }">
-    <Doughnut :data="chartData" :options="chartOptions" />
-  </div>
-</template>
diff --git a/src/components/charts/EChart.vue b/src/components/charts/EChart.vue
new file mode 100644
index 0000000..46ad898
--- /dev/null
+++ b/src/components/charts/EChart.vue
@@ -0,0 +1,158 @@
+<script setup lang="ts">
+/**
+ * ECharts 基础封装组件
+ * 提供自动响应式、主题适配、加载状态等通用功能
+ */
+import { ref, onMounted, onUnmounted, watch, computed } from 'vue'
+import * as echarts from 'echarts/core'
+import { CanvasRenderer } from 'echarts/renderers'
+import {
+  PieChart,
+  BarChart,
+  LineChart,
+  HeatmapChart,
+} from 'echarts/charts'
+import {
+  TitleComponent,
+  TooltipComponent,
+  LegendComponent,
+  GridComponent,
+  VisualMapComponent,
+} from 'echarts/components'
+import type { EChartsOption } from 'echarts'
+
+// 注册必要的组件
+echarts.use([
+  CanvasRenderer,
+  PieChart,
+  BarChart,
+  LineChart,
+  HeatmapChart,
+  TitleComponent,
+  TooltipComponent,
+  LegendComponent,
+  GridComponent,
+  VisualMapComponent,
+])
+
+interface Props {
+  option: EChartsOption
+  height?: number | string
+  loading?: boolean
+  theme?: 'light' | 'dark' | 'auto'
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  height: 300,
+  loading: false,
+  theme: 'auto',
+})
+
+const chartRef = ref<HTMLDivElement>()
+let chartInstance: echarts.ECharts | null = null
+
+// 计算高度样式
+const heightStyle = computed(() => {
+  if (typeof props.height === 'number') {
+    return `${props.height}px`
+  }
+  return props.height
+})
+
+// 检测暗色模式
+const isDark = computed(() => {
+  if (props.theme === 'auto') {
+    return document.documentElement.classList.contains('dark')
+  }
+  return props.theme === 'dark'
+})
+
+// 初始化图表
+function initChart() {
+  if (!chartRef.value) return
+
+  // 销毁旧实例
+  if (chartInstance) {
+    chartInstance.dispose()
+  }
+
+  // 创建新实例
+  chartInstance = echarts.init(chartRef.value, isDark.value ? 'dark' : undefined)
+  chartInstance.setOption(props.option)
+}
+
+// 更新图表
+function updateChart() {
+  if (!chartInstance) {
+    initChart()
+    return
+  }
+  chartInstance.setOption(props.option, { notMerge: true })
+}
+
+// 调整大小
+function handleResize() {
+  chartInstance?.resize()
+}
+
+// 监听 option 变化
+watch(() => props.option, updateChart, { deep: true })
+
+// 监听主题变化
+watch(isDark, () => {
+  initChart()
+})
+
+// 监听加载状态
+watch(
+  () => props.loading,
+  (loading) => {
+    if (loading) {
+      chartInstance?.showLoading('default', {
+        text: '',
+        spinnerRadius: 12,
+        lineWidth: 2,
+      })
+    } else {
+      chartInstance?.hideLoading()
+    }
+  }
+)
+
+// 监听暗色模式变化
+let observer: MutationObserver | null = null
+
+onMounted(() => {
+  initChart()
+  window.addEventListener('resize', handleResize)
+
+  // 监听 HTML 元素的 class 变化（用于检测暗色模式切换）
+  observer = new MutationObserver(() => {
+    if (props.theme === 'auto') {
+      initChart()
+    }
+  })
+  observer.observe(document.documentElement, {
+    attributes: true,
+    attributeFilter: ['class'],
+  })
+})
+
+onUnmounted(() => {
+  window.removeEventListener('resize', handleResize)
+  observer?.disconnect()
+  chartInstance?.dispose()
+  chartInstance = null
+})
+
+// 暴露方法供父组件调用
+defineExpose({
+  getInstance: () => chartInstance,
+  resize: handleResize,
+})
+</script>
+
+<template>
+  <div ref="chartRef" :style="{ height: heightStyle, width: '100%' }" />
+</template>
+
diff --git a/src/components/charts/EChartBar.vue b/src/components/charts/EChartBar.vue
new file mode 100644
index 0000000..e1cf9fe
--- /dev/null
+++ b/src/components/charts/EChartBar.vue
@@ -0,0 +1,142 @@
+<script setup lang="ts">
+/**
+ * ECharts 柱状图组件
+ */
+import { computed } from 'vue'
+import type { EChartsOption } from 'echarts'
+import EChart from './EChart.vue'
+
+export interface EChartBarData {
+  labels: string[]
+  values: number[]
+}
+
+interface Props {
+  data: EChartBarData
+  height?: number
+  /** 是否为横向柱状图 */
+  horizontal?: boolean
+  /** 是否显示渐变色 */
+  gradient?: boolean
+  /** 柱子圆角 */
+  borderRadius?: number
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  height: 200,
+  horizontal: false,
+  gradient: true,
+  borderRadius: 4,
+})
+
+// 渐变色
+const gradientColor = {
+  type: 'linear' as const,
+  x: 0,
+  y: 0,
+  x2: 0,
+  y2: 1,
+  colorStops: [
+    { offset: 0, color: '#ec4899' }, // pink-500
+    { offset: 1, color: '#f472b6' }, // pink-400
+  ],
+}
+
+const option = computed<EChartsOption>(() => {
+  const isHorizontal = props.horizontal
+
+  return {
+    tooltip: {
+      trigger: 'axis',
+      axisPointer: {
+        type: 'shadow',
+      },
+      backgroundColor: 'rgba(0, 0, 0, 0.8)',
+      borderColor: 'transparent',
+      textStyle: {
+        color: '#fff',
+      },
+    },
+    grid: {
+      left: isHorizontal ? 60 : 40,
+      right: 20,
+      top: 20,
+      bottom: isHorizontal ? 20 : 30,
+      containLabel: false,
+    },
+    xAxis: isHorizontal
+      ? {
+          type: 'value',
+          axisLine: { show: false },
+          axisTick: { show: false },
+          splitLine: {
+            lineStyle: {
+              type: 'dashed',
+              color: '#e5e7eb',
+            },
+          },
+        }
+      : {
+          type: 'category',
+          data: props.data.labels,
+          axisLine: { show: false },
+          axisTick: { show: false },
+          axisLabel: {
+            fontSize: 11,
+            color: '#6b7280',
+          },
+        },
+    yAxis: isHorizontal
+      ? {
+          type: 'category',
+          data: props.data.labels,
+          axisLine: { show: false },
+          axisTick: { show: false },
+          axisLabel: {
+            fontSize: 11,
+            color: '#6b7280',
+          },
+        }
+      : {
+          type: 'value',
+          axisLine: { show: false },
+          axisTick: { show: false },
+          splitLine: {
+            lineStyle: {
+              type: 'dashed',
+              color: '#e5e7eb',
+            },
+          },
+        },
+    series: [
+      {
+        type: 'bar',
+        data: props.data.values,
+        itemStyle: {
+          color: props.gradient ? gradientColor : '#ec4899',
+          borderRadius: props.borderRadius,
+        },
+        barMaxWidth: 40,
+        emphasis: {
+          itemStyle: {
+            color: props.gradient
+              ? {
+                  ...gradientColor,
+                  colorStops: [
+                    { offset: 0, color: '#db2777' }, // pink-600
+                    { offset: 1, color: '#ec4899' }, // pink-500
+                  ],
+                }
+              : '#db2777',
+          },
+        },
+      },
+    ],
+  }
+})
+</script>
+
+<template>
+  <EChart :option="option" :height="height" />
+</template>
+
diff --git a/src/components/charts/EChartLine.vue b/src/components/charts/EChartLine.vue
new file mode 100644
index 0000000..9a899ec
--- /dev/null
+++ b/src/components/charts/EChartLine.vue
@@ -0,0 +1,116 @@
+<script setup lang="ts">
+/**
+ * ECharts 折线图组件
+ */
+import { computed } from 'vue'
+import type { EChartsOption } from 'echarts'
+import EChart from './EChart.vue'
+
+export interface EChartLineData {
+  labels: string[]
+  values: number[]
+}
+
+interface Props {
+  data: EChartLineData
+  height?: number
+  /** 是否显示面积 */
+  showArea?: boolean
+  /** 是否平滑曲线 */
+  smooth?: boolean
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  height: 288,
+  showArea: true,
+  smooth: true,
+})
+
+const option = computed<EChartsOption>(() => {
+  return {
+    tooltip: {
+      trigger: 'axis',
+      backgroundColor: 'rgba(0, 0, 0, 0.8)',
+      borderColor: 'transparent',
+      textStyle: {
+        color: '#fff',
+      },
+    },
+    grid: {
+      left: 50,
+      right: 20,
+      top: 20,
+      bottom: 30,
+    },
+    xAxis: {
+      type: 'category',
+      data: props.data.labels,
+      boundaryGap: false,
+      axisLine: { show: false },
+      axisTick: { show: false },
+      axisLabel: {
+        fontSize: 11,
+        color: '#6b7280',
+        // 自动间隔显示标签
+        interval: 'auto',
+      },
+    },
+    yAxis: {
+      type: 'value',
+      axisLine: { show: false },
+      axisTick: { show: false },
+      splitLine: {
+        lineStyle: {
+          type: 'dashed',
+          color: '#e5e7eb',
+        },
+      },
+    },
+    series: [
+      {
+        type: 'line',
+        data: props.data.values,
+        smooth: props.smooth,
+        symbol: 'circle',
+        symbolSize: 4,
+        showSymbol: false,
+        lineStyle: {
+          width: 2,
+          color: '#ec4899', // pink-500
+        },
+        itemStyle: {
+          color: '#ec4899',
+        },
+        areaStyle: props.showArea
+          ? {
+              color: {
+                type: 'linear',
+                x: 0,
+                y: 0,
+                x2: 0,
+                y2: 1,
+                colorStops: [
+                  { offset: 0, color: 'rgba(236, 72, 153, 0.3)' },
+                  { offset: 1, color: 'rgba(236, 72, 153, 0.05)' },
+                ],
+              },
+            }
+          : undefined,
+        emphasis: {
+          focus: 'series',
+          itemStyle: {
+            color: '#ec4899',
+            borderColor: '#fff',
+            borderWidth: 2,
+          },
+        },
+      },
+    ],
+  }
+})
+</script>
+
+<template>
+  <EChart :option="option" :height="height" />
+</template>
+
diff --git a/src/components/charts/EChartPie.vue b/src/components/charts/EChartPie.vue
new file mode 100644
index 0000000..beb6874
--- /dev/null
+++ b/src/components/charts/EChartPie.vue
@@ -0,0 +1,109 @@
+<script setup lang="ts">
+/**
+ * ECharts 饼图/环形图组件
+ */
+import { computed } from 'vue'
+import type { EChartsOption } from 'echarts'
+import EChart from './EChart.vue'
+
+export interface EChartPieData {
+  labels: string[]
+  values: number[]
+}
+
+interface Props {
+  data: EChartPieData
+  height?: number
+  /** 是否为环形图 */
+  doughnut?: boolean
+  /** 内圈半径（环形图时生效） */
+  innerRadius?: string
+  /** 是否显示图例 */
+  showLegend?: boolean
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  height: 280,
+  doughnut: true,
+  innerRadius: '50%',
+  showLegend: true,
+})
+
+// 颜色方案
+const colors = [
+  '#6366f1', // indigo
+  '#8b5cf6', // violet
+  '#ec4899', // pink
+  '#f43f5e', // rose
+  '#f97316', // orange
+  '#eab308', // yellow
+  '#22c55e', // green
+  '#14b8a6', // teal
+  '#06b6d4', // cyan
+  '#3b82f6', // blue
+]
+
+const option = computed<EChartsOption>(() => {
+  const seriesData = props.data.labels.map((label, index) => ({
+    name: label,
+    value: props.data.values[index],
+  }))
+
+  return {
+    color: colors,
+    tooltip: {
+      trigger: 'item',
+      formatter: '{b}: {c} ({d}%)',
+      backgroundColor: 'rgba(0, 0, 0, 0.8)',
+      borderColor: 'transparent',
+      textStyle: {
+        color: '#fff',
+      },
+    },
+    legend: props.showLegend
+      ? {
+          orient: 'vertical',
+          right: 10,
+          top: 'center',
+          textStyle: {
+            fontSize: 12,
+          },
+        }
+      : undefined,
+    series: [
+      {
+        type: 'pie',
+        radius: props.doughnut ? [props.innerRadius, '70%'] : '70%',
+        center: props.showLegend ? ['35%', '50%'] : ['50%', '50%'],
+        avoidLabelOverlap: true,
+        itemStyle: {
+          borderRadius: 4,
+          borderColor: '#fff',
+          borderWidth: 2,
+        },
+        label: {
+          show: false,
+        },
+        emphasis: {
+          label: {
+            show: true,
+            fontSize: 14,
+            fontWeight: 'bold',
+          },
+          itemStyle: {
+            shadowBlur: 10,
+            shadowOffsetX: 0,
+            shadowColor: 'rgba(0, 0, 0, 0.5)',
+          },
+        },
+        data: seriesData,
+      },
+    ],
+  }
+})
+</script>
+
+<template>
+  <EChart :option="option" :height="height" />
+</template>
+
diff --git a/src/components/charts/HorizontalBarChart.vue b/src/components/charts/HorizontalBarChart.vue
deleted file mode 100644
index 5f83611..0000000
--- a/src/components/charts/HorizontalBarChart.vue
+++ /dev/null
@@ -1,119 +0,0 @@
-<script setup lang="ts">
-import { computed } from 'vue'
-import { useI18n } from 'vue-i18n'
-import { Bar } from 'vue-chartjs'
-import { Chart as ChartJS, CategoryScale, LinearScale, BarElement, Title, Tooltip, Legend } from 'chart.js'
-
-ChartJS.register(CategoryScale, LinearScale, BarElement, Title, Tooltip, Legend)
-
-const { t } = useI18n()
-
-export interface HorizontalBarChartData {
-  labels: string[]
-  values: number[]
-  colors?: string[]
-}
-
-interface Props {
-  data: HorizontalBarChartData
-  height?: number
-  showLegend?: boolean
-  borderRadius?: number
-}
-
-const props = withDefaults(defineProps<Props>(), {
-  height: 320,
-  showLegend: false,
-  borderRadius: 8,
-})
-
-// 默认渐变色方案
-const defaultColors = [
-  '#6366f1', // indigo
-  '#8b5cf6', // violet
-  '#a855f7', // purple
-  '#d946ef', // fuchsia
-  '#ec4899', // pink
-  '#f43f5e', // rose
-  '#f97316', // orange
-  '#eab308', // yellow
-  '#22c55e', // green
-  '#14b8a6', // teal
-]
-
-const chartData = computed(() => {
-  return {
-    labels: props.data.labels,
-    datasets: [
-      {
-        label: t('count'),
-        data: props.data.values,
-        backgroundColor: props.data.colors || defaultColors.slice(0, props.data.values.length),
-        borderRadius: props.borderRadius,
-        borderSkipped: false,
-      },
-    ],
-  }
-})
-
-const chartOptions = {
-  responsive: true,
-  maintainAspectRatio: false,
-  indexAxis: 'y' as const,
-  plugins: {
-    legend: {
-      display: props.showLegend,
-    },
-    tooltip: {
-      backgroundColor: 'rgba(0, 0, 0, 0.8)',
-      padding: 12,
-      cornerRadius: 8,
-      titleFont: {
-        size: 14,
-      },
-      bodyFont: {
-        size: 13,
-      },
-    },
-  },
-  scales: {
-    x: {
-      grid: {
-        display: false,
-      },
-      ticks: {
-        font: {
-          size: 12,
-        },
-      },
-    },
-    y: {
-      grid: {
-        display: false,
-      },
-      ticks: {
-        font: {
-          size: 12,
-        },
-      },
-    },
-  },
-}
-</script>
-
-<template>
-  <div :style="{ height: `${height}px` }">
-    <Bar :data="chartData" :options="chartOptions" />
-  </div>
-</template>
-
-<i18n>
-{
-  "zh-CN": {
-    "count": "数量"
-  },
-  "en-US": {
-    "count": "Count"
-  }
-}
-</i18n>
diff --git a/src/components/charts/LineChart.vue b/src/components/charts/LineChart.vue
deleted file mode 100644
index fd702a5..0000000
--- a/src/components/charts/LineChart.vue
+++ /dev/null
@@ -1,128 +0,0 @@
-<script setup lang="ts">
-import { computed } from 'vue'
-import { useI18n } from 'vue-i18n'
-import { Line } from 'vue-chartjs'
-import {
-  Chart as ChartJS,
-  CategoryScale,
-  LinearScale,
-  PointElement,
-  LineElement,
-  Title,
-  Tooltip,
-  Legend,
-  Filler,
-} from 'chart.js'
-
-ChartJS.register(CategoryScale, LinearScale, PointElement, LineElement, Title, Tooltip, Legend, Filler)
-
-const { t } = useI18n()
-
-export interface LineChartData {
-  labels: string[]
-  values: number[]
-}
-
-interface Props {
-  data: LineChartData
-  height?: number
-  fill?: boolean
-  lineColor?: string
-  fillColor?: string
-  tension?: number
-  showLegend?: boolean
-  xAxisRotation?: number
-}
-
-const props = withDefaults(defineProps<Props>(), {
-  height: 288,
-  fill: true,
-  lineColor: '#6366f1',
-  fillColor: 'rgba(99, 102, 241, 0.1)',
-  tension: 0.4,
-  showLegend: false,
-  xAxisRotation: 45,
-})
-
-const chartData = computed(() => {
-  return {
-    labels: props.data.labels,
-    datasets: [
-      {
-        label: t('count'),
-        data: props.data.values,
-        fill: props.fill,
-        borderColor: props.lineColor,
-        backgroundColor: props.fillColor,
-        tension: props.tension,
-        pointBackgroundColor: props.lineColor,
-        pointBorderColor: '#fff',
-        pointBorderWidth: 2,
-        pointRadius: 4,
-        pointHoverRadius: 6,
-      },
-    ],
-  }
-})
-
-const chartOptions = computed(() => ({
-  responsive: true,
-  maintainAspectRatio: false,
-  plugins: {
-    legend: {
-      display: props.showLegend,
-    },
-    tooltip: {
-      backgroundColor: 'rgba(0, 0, 0, 0.8)',
-      padding: 12,
-      cornerRadius: 8,
-    },
-  },
-  scales: {
-    x: {
-      grid: {
-        display: false,
-      },
-      ticks: {
-        maxRotation: props.xAxisRotation,
-        minRotation: props.xAxisRotation,
-        font: {
-          size: 11,
-        },
-      },
-    },
-    y: {
-      beginAtZero: true,
-      grid: {
-        color: 'rgba(0, 0, 0, 0.05)',
-      },
-      ticks: {
-        font: {
-          size: 11,
-        },
-      },
-    },
-  },
-  interaction: {
-    intersect: false,
-    mode: 'index' as const,
-  },
-}))
-</script>
-
-<template>
-  <div :style="{ height: `${height}px` }">
-    <Line :data="chartData" :options="chartOptions" />
-  </div>
-</template>
-
-<i18n>
-{
-  "zh-CN": {
-    "count": "数量"
-  },
-  "en-US": {
-    "count": "Count"
-  }
-}
-</i18n>
diff --git a/src/components/charts/index.ts b/src/components/charts/index.ts
index e0685aa..6734daa 100644
--- a/src/components/charts/index.ts
+++ b/src/components/charts/index.ts
@@ -1,17 +1,22 @@
 // 图表组件统一导出
-export { default as DoughnutChart } from './DoughnutChart.vue'
-export { default as HorizontalBarChart } from './HorizontalBarChart.vue'
-export { default as LineChart } from './LineChart.vue'
-export { default as BarChart } from './BarChart.vue'
+
+// ECharts 组件
+export { default as EChart } from './EChart.vue'
+export { default as EChartPie } from './EChartPie.vue'
+export { default as EChartBar } from './EChartBar.vue'
+export { default as EChartLine } from './EChartLine.vue'
+
+// 其他组件
 export { default as RankList } from './RankList.vue'
 export { default as RankListPro } from './RankListPro.vue'
 export { default as ListPro } from './ListPro.vue'
 export { default as ProgressBar } from './ProgressBar.vue'
 export { default as MemberNicknameHistory } from './MemberNicknameHistory.vue'
 
-// 导出类型定义
-export type { DoughnutChartData } from './DoughnutChart.vue'
-export type { HorizontalBarChartData } from './HorizontalBarChart.vue'
-export type { LineChartData } from './LineChart.vue'
-export type { BarChartData } from './BarChart.vue'
+// ECharts 类型
+export type { EChartPieData } from './EChartPie.vue'
+export type { EChartBarData } from './EChartBar.vue'
+export type { EChartLineData } from './EChartLine.vue'
+
+// 其他类型
 export type { RankItem } from './RankList.vue'
diff --git a/src/composables/analysis/useDailyTrend.ts b/src/composables/analysis/useDailyTrend.ts
index 0890f68..7cc2272 100644
--- a/src/composables/analysis/useDailyTrend.ts
+++ b/src/composables/analysis/useDailyTrend.ts
@@ -1,6 +1,6 @@
 import { computed } from 'vue'
 import type { DailyActivity } from '@/types/analysis'
-import type { LineChartData } from '@/components/charts'
+import type { EChartLineData } from '@/components/charts'
 import dayjs from 'dayjs'
 
 export function useDailyTrend(dailyActivity: DailyActivity[]) {
@@ -12,7 +12,7 @@ export function useDailyTrend(dailyActivity: DailyActivity[]) {
   })
 
   // 每日趋势图数据（动态聚合）
-  const dailyChartData = computed<LineChartData>(() => {
+  const dailyChartData = computed<EChartLineData>(() => {
     const rawData = dailyActivity
     const maxPoints = 50 // 最大展示点数
 
diff --git a/src/pages/group-chat/components/OverviewTab.vue b/src/pages/group-chat/components/OverviewTab.vue
index 6ac9842..742faeb 100644
--- a/src/pages/group-chat/components/OverviewTab.vue
+++ b/src/pages/group-chat/components/OverviewTab.vue
@@ -10,8 +10,8 @@ import type {
   WeekdayActivity,
   MonthlyActivity,
 } from '@/types/analysis'
-import { DoughnutChart } from '@/components/charts'
-import type { DoughnutChartData } from '@/components/charts'
+import { EChartPie } from '@/components/charts'
+import type { EChartPieData } from '@/components/charts'
 import { SectionCard } from '@/components/UI'
 import { useOverviewStatistics } from '@/composables/analysis/useOverviewStatistics'
 import { useDailyTrend } from '@/composables/analysis/useDailyTrend'
@@ -62,7 +62,7 @@ const {
 const { dailyChartData } = useDailyTrend(props.dailyActivity)
 
 // 消息类型图表数据
-const typeChartData = computed<DoughnutChartData>(() => {
+const typeChartData = computed<EChartPieData>(() => {
   return {
     labels: props.messageTypes.map((t) => getMessageTypeName(t.type)),
     values: props.messageTypes.map((t) => t.count),
@@ -70,7 +70,7 @@ const typeChartData = computed<DoughnutChartData>(() => {
 })
 
 // 成员水群分布图表数据
-const memberChartData = computed<DoughnutChartData>(() => {
+const memberChartData = computed<EChartPieData>(() => {
   const sortedMembers = [...props.memberActivity].sort((a, b) => b.messageCount - a.messageCount)
   const top10 = sortedMembers.slice(0, 10)
   const othersCount = sortedMembers.slice(10).reduce((sum, m) => sum + m.messageCount, 0)
@@ -161,14 +161,14 @@ watch(
       <!-- 消息类型分布 -->
       <SectionCard :title="t('messageTypeDistribution')" :show-divider="false">
         <div class="p-5">
-          <DoughnutChart :data="typeChartData" :height="256" />
+          <EChartPie :data="typeChartData" :height="256" />
         </div>
       </SectionCard>
 
       <!-- 成员水群分布 -->
       <SectionCard :title="t('memberDistribution')" :show-divider="false">
         <div class="p-5">
-          <DoughnutChart :data="memberChartData" :height="256" />
+          <EChartPie :data="memberChartData" :height="256" />
         </div>
       </SectionCard>
     </div>
diff --git a/src/pages/group-chat/components/ranking/RepeatSection.vue b/src/pages/group-chat/components/ranking/RepeatSection.vue
index 4fda3d0..88b980a 100644
--- a/src/pages/group-chat/components/ranking/RepeatSection.vue
+++ b/src/pages/group-chat/components/ranking/RepeatSection.vue
@@ -1,8 +1,8 @@
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue'
 import type { RepeatAnalysis } from '@/types/analysis'
-import { RankListPro, BarChart, ListPro } from '@/components/charts'
-import type { RankItem, BarChartData } from '@/components/charts'
+import { RankListPro, EChartBar, ListPro } from '@/components/charts'
+import type { RankItem, EChartBarData } from '@/components/charts'
 import { SectionCard, EmptyState, LoadingState } from '@/components/UI'
 import { getRankBadgeClass } from '@/utils'
 
@@ -65,7 +65,7 @@ const breakerRankData = computed<RankItem[]>(() => {
   }))
 })
 
-const chainLengthChartData = computed<BarChartData>(() => {
+const chainLengthChartData = computed<EChartBarData>(() => {
   if (!analysis.value) return { labels: [], values: [] }
   const distribution = analysis.value.chainLengthDistribution
   return {
@@ -115,7 +115,7 @@ watch(
             <p class="mt-0.5 text-xs text-gray-500 dark:text-gray-400">每次复读有多少人参与</p>
           </div>
           <div class="p-4">
-            <BarChart v-if="chainLengthChartData.labels.length > 0" :data="chainLengthChartData" :height="200" />
+            <EChartBar v-if="chainLengthChartData.labels.length > 0" :data="chainLengthChartData" :height="200" />
             <EmptyState v-else padding="md" />
           </div>
         </div>
diff --git a/src/pages/private-chat/components/OverviewTab.vue b/src/pages/private-chat/components/OverviewTab.vue
index 895a9ba..c3dbf64 100644
--- a/src/pages/private-chat/components/OverviewTab.vue
+++ b/src/pages/private-chat/components/OverviewTab.vue
@@ -4,8 +4,8 @@ import { useI18n } from 'vue-i18n'
 import type { AnalysisSession, MessageType } from '@/types/base'
 import { getMessageTypeName } from '@/types/base'
 import type { MemberActivity, HourlyActivity, DailyActivity, WeekdayActivity, MonthlyActivity } from '@/types/analysis'
-import { DoughnutChart } from '@/components/charts'
-import type { DoughnutChartData } from '@/components/charts'
+import { EChartPie } from '@/components/charts'
+import type { EChartPieData } from '@/components/charts'
 import { SectionCard } from '@/components/UI'
 import { useOverviewStatistics } from '@/composables/analysis/useOverviewStatistics'
 import { useDailyTrend } from '@/composables/analysis/useDailyTrend'
@@ -54,7 +54,7 @@ const {
 const { dailyChartData } = useDailyTrend(props.dailyActivity)
 
 // 消息类型图表数据
-const typeChartData = computed<DoughnutChartData>(() => {
+const typeChartData = computed<EChartPieData>(() => {
   return {
     labels: props.messageTypes.map((t) => getMessageTypeName(t.type)),
     values: props.messageTypes.map((t) => t.count),
@@ -89,7 +89,7 @@ const memberComparisonData = computed(() => {
 })
 
 // 双方对比图表数据
-const comparisonChartData = computed<DoughnutChartData>(() => {
+const comparisonChartData = computed<EChartPieData>(() => {
   if (!memberComparisonData.value) {
     return { labels: [], values: [] }
   }
@@ -252,14 +252,14 @@ watch(
       <!-- 消息类型分布 -->
       <SectionCard :title="t('messageTypeDistribution')" :show-divider="false">
         <div class="p-5">
-          <DoughnutChart :data="typeChartData" :height="256" />
+          <EChartPie :data="typeChartData" :height="256" />
         </div>
       </SectionCard>
 
       <!-- 双方消息占比饼图 -->
       <SectionCard v-if="memberComparisonData" :title="t('memberComparison')" :show-divider="false">
         <div class="p-5">
-          <DoughnutChart :data="comparisonChartData" :height="256" />
+          <EChartPie :data="comparisonChartData" :height="256" />
         </div>
       </SectionCard>
     </div>
diff --git a/src/pages/private-chat/components/view/MessageView.vue b/src/pages/private-chat/components/view/MessageView.vue
index 7ec3900..b341569 100644
--- a/src/pages/private-chat/components/view/MessageView.vue
+++ b/src/pages/private-chat/components/view/MessageView.vue
@@ -4,8 +4,8 @@ import { useI18n } from 'vue-i18n'
 import type { MessageType } from '@/types/base'
 import { getMessageTypeName } from '@/types/base'
 import type { HourlyActivity, WeekdayActivity, MonthlyActivity } from '@/types/analysis'
-import { DoughnutChart, BarChart } from '@/components/charts'
-import type { DoughnutChartData, BarChartData } from '@/components/charts'
+import { EChartPie, EChartBar } from '@/components/charts'
+import type { EChartPieData, EChartBarData } from '@/components/charts'
 import { SectionCard } from '@/components/UI'
 
 const { t } = useI18n()
@@ -57,7 +57,7 @@ const monthNames = computed(() => [
 ])
 
 // 消息类型饼图数据
-const typeChartData = computed<DoughnutChartData>(() => {
+const typeChartData = computed<EChartPieData>(() => {
   // 按数量排序
   const sorted = [...messageTypes.value].sort((a, b) => b.count - a.count)
   return {
@@ -67,7 +67,7 @@ const typeChartData = computed<DoughnutChartData>(() => {
 })
 
 // 小时分布图表数据
-const hourlyChartData = computed<BarChartData>(() => {
+const hourlyChartData = computed<EChartBarData>(() => {
   // 补全 24 小时数据
   const hourMap = new Map(hourlyActivity.value.map((h) => [h.hour, h.messageCount]))
   const labels: string[] = []
@@ -82,7 +82,7 @@ const hourlyChartData = computed<BarChartData>(() => {
 })
 
 // 星期分布图表数据
-const weekdayChartData = computed<BarChartData>(() => {
+const weekdayChartData = computed<EChartBarData>(() => {
   // 补全 7 天数据（weekday: 1=周一, 2=周二, ..., 7=周日）
   const dayMap = new Map(weekdayActivity.value.map((w) => [w.weekday, w.messageCount]))
   const values: number[] = []
@@ -99,7 +99,7 @@ const weekdayChartData = computed<BarChartData>(() => {
 })
 
 // 月份分布图表数据
-const monthlyChartData = computed<BarChartData>(() => {
+const monthlyChartData = computed<EChartBarData>(() => {
   // 补全 12 个月数据
   const monthMap = new Map(monthlyActivity.value.map((m) => [m.month, m.messageCount]))
   const values: number[] = []
@@ -115,7 +115,7 @@ const monthlyChartData = computed<BarChartData>(() => {
 })
 
 // 年份分布图表数据
-const yearlyChartData = computed<BarChartData>(() => {
+const yearlyChartData = computed<EChartBarData>(() => {
   // 按年份排序
   const sorted = [...yearlyActivity.value].sort((a, b) => a.year - b.year)
   return {
@@ -216,7 +216,7 @@ watch(
       <!-- 消息类型分布 -->
       <SectionCard :title="t('typeDistribution')" :show-divider="false">
         <div class="p-5">
-          <DoughnutChart v-if="typeChartData.values.length > 0" :data="typeChartData" :height="280" />
+          <EChartPie v-if="typeChartData.values.length > 0" :data="typeChartData" :height="280" />
           <div v-else class="flex h-48 items-center justify-center text-gray-400">
             {{ t('noData') }}
           </div>
@@ -228,14 +228,14 @@ watch(
         <!-- 小时分布 -->
         <SectionCard :title="t('hourlyDistribution')" :show-divider="false">
           <div class="p-5">
-            <BarChart :data="hourlyChartData" :height="200" />
+            <EChartBar :data="hourlyChartData" :height="200" />
           </div>
         </SectionCard>
 
         <!-- 星期分布 -->
         <SectionCard :title="t('weekdayDistribution')" :show-divider="false">
           <div class="p-5">
-            <BarChart :data="weekdayChartData" :height="200" />
+            <EChartBar :data="weekdayChartData" :height="200" />
           </div>
         </SectionCard>
       </div>
@@ -245,14 +245,14 @@ watch(
         <!-- 月份分布 -->
         <SectionCard :title="t('monthlyDistribution')" :show-divider="false">
           <div class="p-5">
-            <BarChart :data="monthlyChartData" :height="200" />
+            <EChartBar :data="monthlyChartData" :height="200" />
           </div>
         </SectionCard>
 
         <!-- 年份分布 -->
         <SectionCard :title="t('yearlyDistribution')" :show-divider="false">
           <div class="p-5">
-            <BarChart
+            <EChartBar
               v-if="yearlyChartData.values.length > 0"
               :data="yearlyChartData"
               :height="200"