diff --git a/package-lock.json b/package-lock.json
index 102e784..18a8172 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,7 @@
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@@ -2446,6 +2473,19 @@
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+      },
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@@ -2619,6 +2661,7 @@
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@@ -2765,6 +2808,21 @@
         "node": ">=12"
       }
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+    "node_modules/d3-cloud": {
+      "version": "1.2.9",
+      "resolved": "https://registry.npmjs.org/d3-cloud/-/d3-cloud-1.2.9.tgz",
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+      "license": "BSD-3-Clause",
+      "dependencies": {
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+      }
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+      "resolved": "https://registry.npmjs.org/d3-dispatch/-/d3-dispatch-1.0.6.tgz",
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@@ -3047,6 +3105,7 @@
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@@ -3541,6 +3601,7 @@
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+      "license": "MIT",
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@@ -4235,37 +4297,43 @@
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-      "license": "MIT"
+      "license": "MIT",
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-      "license": "MIT"
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-      "license": "MIT"
+      "license": "MIT",
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-      "license": "MIT"
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-      "license": "MIT"
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-      "license": "MIT"
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         "entities": "^4.4.0",
@@ -4596,6 +4665,7 @@
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       "license": "MIT",
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       "bin": {
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-      "license": "MIT"
+      "license": "MIT",
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       "devOptional": true,
       "license": "Apache-2.0",
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@@ -5410,6 +5484,7 @@
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diff --git a/package.json b/package.json
index 3e1132c..317b9d3 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,7 @@
     "axios": "^1.16.1",
     "canvas-confetti": "^1.9.4",
     "chart.js": "^4.5.1",
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     "client-zip": "^2.5.0",
     "codemirror": "^6.0.2",
     "copy-text-to-clipboard": "^3.2.2",
diff --git a/public/flowchart-data.html b/public/flowchart-data.html
deleted file mode 100644
index 0dac320..0000000
--- a/public/flowchart-data.html
+++ /dev/null
@@ -1,329 +0,0 @@
-<!DOCTYPE html>
-<html lang="zh-CN">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Python流程图作业 - 学情分析看板</title>
-    <script src="https://cdn.jsdelivr.net/npm/echarts@5.4.3/dist/echarts.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/echarts-wordcloud@2.1.0/dist/echarts-wordcloud.min.js"></script>
-    <style>
-        :root {
-            --bg-color: #f0f2f5;
-            --card-bg: #ffffff;
-            --primary: #1890ff;
-            --text-main: #333;
-            --text-secondary: #666;
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-
-        body {
-            font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
-            background-color: var(--bg-color);
-            margin: 0;
-            padding: 20px;
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-
-        .header {
-            text-align: center;
-            margin-bottom: 20px;
-        }
-        .header h1 { color: var(--text-main); margin: 0; }
-        .header p { color: var(--text-secondary); margin-top: 5px; }
-
-        /* 顶部概览卡片 */
-        .overview-container {
-            display: flex;
-            justify-content: space-between;
-            gap: 20px;
-            margin-bottom: 20px;
-        }
-
-        .card {
-            background: var(--card-bg);
-            border-radius: 8px;
-            padding: 20px;
-            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
-            flex: 1;
-            transition: transform 0.3s;
-        }
-        .card:hover { transform: translateY(-5px); }
-
-        .stat-title { font-size: 14px; color: var(--text-secondary); }
-        .stat-value { font-size: 28px; font-weight: bold; color: var(--text-main); margin-top: 10px; }
-        .stat-sub { font-size: 12px; color: #52c41a; margin-top: 5px; }
-
-        /* 图表布局 */
-        .charts-grid {
-            display: grid;
-            grid-template-columns: 1fr 1fr;
-            gap: 20px;
-            margin-bottom: 20px;
-        }
-        
-        .chart-box {
-            background: var(--card-bg);
-            border-radius: 8px;
-            padding: 20px;
-            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
-            height: 400px;
-        }
-        
-        .chart-title {
-            font-size: 16px;
-            font-weight: bold;
-            border-left: 4px solid var(--primary);
-            padding-left: 10px;
-            margin-bottom: 15px;
-        }
-
-        /* 学生列表 */
-        .student-list {
-            background: var(--card-bg);
-            border-radius: 8px;
-            padding: 20px;
-            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
-        }
-        
-        table { width: 100%; border-collapse: collapse; }
-        th, td { text-align: left; padding: 12px; border-bottom: 1px solid #eee; }
-        th { background-color: #fafafa; color: var(--text-secondary); }
-        
-        .tag {
-            padding: 4px 8px;
-            border-radius: 4px;
-            font-size: 12px;
-            font-weight: bold;
-        }
-        .tag-S { background: #fff7e6; color: #fa8c16; }
-        .tag-A { background: #e6f7ff; color: #1890ff; }
-        .tag-B { background: #f6ffed; color: #52c41a; }
-        .tag-C { background: #fff1f0; color: #f5222d; }
-
-    </style>
-</head>
-<body>
-    <div class="overview-container">
-        <div class="card">
-            <div class="stat-title">班级平均分</div>
-            <div class="stat-value" id="avgScore">0</div>
-            <div class="stat-sub">↑ 比上周For循环 +2.5分</div>
-        </div>
-        <div class="card">
-            <div class="stat-title">S+A 级别（卓越+优秀）人数</div>
-            <div class="stat-value" id="countA">0</div>
-            <div class="stat-sub">占比 35.7%</div>
-        </div>
-        <div class="card">
-            <div class="stat-title">未掌握核心难点</div>
-            <div class="stat-value" style="color: #f5222d; font-size: 24px;">循环条件</div>
-            <div class="stat-sub">需重点讲解 a<100 边界</div>
-        </div>
-    </div>
-
-    <div class="charts-grid">
-        <div class="chart-box">
-            <div class="chart-title">作业评级分布</div>
-            <div id="pieChart" style="width: 100%; height: 340px;"></div>
-        </div>
-        
-        <div class="chart-box">
-            <div class="chart-title">薄弱知识点词云 (AI分析)</div>
-            <div id="wordCloud" style="width: 100%; height: 340px;"></div>
-        </div>
-    </div>
-
-    <div class="charts-grid">
-        <div class="chart-box" style="grid-column: span 2;">
-            <div class="chart-title">全班分数段统计</div>
-            <div id="barChart" style="width: 100%; height: 340px;"></div>
-        </div>
-    </div>
-
-    <script>
-        // --- 1. 模拟数据生成 (40位同学) ---
-        const totalStudents = 40;
-        const students = [];
-        const familyNames = "赵钱孙李周吴郑王冯陈褚卫蒋沈韩杨";
-        
-        // 精确分配等级人数：S 10% (4人), A 15% (6人), B 50% (20人), C 15% (6人), D 10% (4人)
-        const gradeDistribution = {
-            S: 4,   // 10% = 4人
-            A: 6,   // 15% = 6人
-            B: 20,  // 50% = 20人
-            C: 6,   // 15% = 6人
-            D: 4    // 10% = 4人
-        };
-        
-        let gradeCounts = { S: 0, A: 0, B: 0, C: 0, D: 0 };
-        let totalScore = 0;
-        
-        // 创建等级数组，确保精确分配
-        let levelQueue = [];
-        for (let level in gradeDistribution) {
-            for (let i = 0; i < gradeDistribution[level]; i++) {
-                levelQueue.push(level);
-            }
-        }
-        // 打乱顺序
-        for (let i = levelQueue.length - 1; i > 0; i--) {
-            const j = Math.floor(Math.random() * (i + 1));
-            [levelQueue[i], levelQueue[j]] = [levelQueue[j], levelQueue[i]];
-        }
-
-        for (let i = 1; i <= totalStudents; i++) {
-            let score;
-            let level = levelQueue[i - 1];
-            
-            // 根据等级生成对应分数范围
-            if (level === 'S') {
-                // S级：95-100
-                score = Math.floor(Math.random() * (100 - 95 + 1) + 95);
-            } else if (level === 'A') {
-                // A级：85-94
-                score = Math.floor(Math.random() * (95 - 85) + 85);
-            } else if (level === 'B') {
-                // B级：70-84
-                score = Math.floor(Math.random() * (85 - 70) + 70);
-            } else if (level === 'C') {
-                // C级：60-69
-                score = Math.floor(Math.random() * (70 - 60) + 60);
-            } else {
-                // D级：50-59
-                score = Math.floor(Math.random() * (60 - 50) + 50);
-            }
-
-            gradeCounts[level]++;
-            totalScore += score;
-
-            let comment = "";
-            if (level === 'S') comment = "完美！逻辑清晰，变量初始化正确，闭环完美，代码规范。";
-            else if (level === 'A') comment = "逻辑清晰，变量初始化正确，闭环完美。";
-            else if (level === 'B') comment = "整体逻辑正确，但部分连线方向有误。";
-            else if (level === 'C') comment = "循环条件判断错误，导致死循环或无法进入。";
-            else comment = "基础概念理解不足，需要重新学习。";
-
-            students.push({
-                id: 2025000 + i,
-                name: familyNames[i % familyNames.length] + "同学",
-                score: score,
-                level: level,
-                comment: comment
-            });
-        }
-
-        // --- 2. 填充顶部数据 ---
-        document.getElementById('avgScore').innerText = (totalScore / totalStudents).toFixed(1);
-        const excellentCount = gradeCounts.S + gradeCounts.A; // S级和A级合计
-        document.getElementById('countA').innerText = excellentCount;
-        // 更新占比显示
-        const excellentPercent = ((excellentCount / totalStudents) * 100).toFixed(1);
-        const countACard = document.getElementById('countA').parentElement;
-        countACard.querySelector('.stat-sub').innerText = `占比 ${excellentPercent}%`;
-
-        // --- 3. 初始化图表 ---
-
-        // A. 饼图 - 等级分布
-        const pieChart = echarts.init(document.getElementById('pieChart'));
-        pieChart.setOption({
-            tooltip: { trigger: 'item' },
-            legend: { top: '5%', left: 'center' },
-            color: ['#fa8c16', '#1890ff', '#52c41a', '#faad14', '#f5222d'],
-            series: [{
-                name: '评级占比',
-                type: 'pie',
-                radius: ['40%', '70%'],
-                avoidLabelOverlap: false,
-                itemStyle: { borderRadius: 10, borderColor: '#fff', borderWidth: 2 },
-                label: { show: false, position: 'center' },
-                emphasis: { label: { show: true, fontSize: 20, fontWeight: 'bold' } },
-                data: [
-                    { value: gradeCounts.S, name: 'S级 (卓越)' },
-                    { value: gradeCounts.A, name: 'A级 (优秀)' },
-                    { value: gradeCounts.B, name: 'B级 (良好)' },
-                    { value: gradeCounts.C, name: 'C级 (待改进)' }
-                ]
-            }]
-        });
-
-        // B. 词云图 - 知识点掌握情况
-        // 这里重点突出“循环条件”
-        const wordChart = echarts.init(document.getElementById('wordCloud'));
-        wordChart.setOption({
-            tooltip: {},
-            series: [{
-                type: 'wordCloud',
-                gridSize: 2,
-                sizeRange: [12, 60], // 字体大小范围
-                rotationRange: [-45, 45],
-                shape: 'circle',
-                width: '100%',
-                height: '100%',
-                textStyle: {
-                    fontFamily: 'sans-serif',
-                    fontWeight: 'bold',
-                    color: function () {
-                        return 'rgb(' + [
-                            Math.round(Math.random() * 160),
-                            Math.round(Math.random() * 160),
-                            Math.round(Math.random() * 160)
-                        ].join(',') + ')';
-                    }
-                },
-                data: [
-                    { name: '循环条件', value: 150, textStyle: { color: 'red' } }, // 核心痛点
-                    { name: '变量初始化', value: 80 },
-                    { name: 'i=i+1', value: 70 },
-                    { name: 'a<100', value: 65 },
-                    { name: '死循环', value: 60 },
-                    { name: '连线方向', value: 50 },
-                    { name: '退出逻辑', value: 45 },
-                    { name: 'While语法', value: 40 },
-                    { name: 'Print缩进', value: 35 },
-                    { name: 'Yes/No分支', value: 30 },
-                    { name: '流程结束符', value: 25 },
-                    { name: '变量定义', value: 20 }
-                ]
-            }]
-        });
-
-        // C. 柱状图 - 分数段
-        const barChart = echarts.init(document.getElementById('barChart'));
-        // 简单的分段统计
-        let ranges = { '90-100': 0, '80-89': 0, '70-79': 0, '60-69': 0, '<60': 0 };
-        students.forEach(s => {
-            if (s.score >= 90) ranges['90-100']++;
-            else if (s.score >= 80) ranges['80-89']++;
-            else if (s.score >= 70) ranges['70-79']++;
-            else if (s.score >= 60) ranges['60-69']++;
-            else ranges['<60']++;
-        });
-
-        barChart.setOption({
-            tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } },
-            grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true },
-            xAxis: { type: 'category', data: Object.keys(ranges) },
-            yAxis: { type: 'value' },
-            series: [{
-                name: '人数',
-                type: 'bar',
-                barWidth: '50%',
-                data: Object.values(ranges),
-                itemStyle: {
-                    color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
-                        { offset: 0, color: '#83bff6' },
-                        { offset: 0.5, color: '#188df0' },
-                        { offset: 1, color: '#188df0' }
-                    ])
-                }
-            }]
-        });
-
-        // 窗口缩放适配
-        window.addEventListener('resize', function() {
-            pieChart.resize();
-            wordChart.resize();
-            barChart.resize();
-        });
-
-    </script>
-</body>
-</html>
\ No newline at end of file
diff --git a/src/oj/api.ts b/src/oj/api.ts
index 860d90d..e4de42a 100644
--- a/src/oj/api.ts
+++ b/src/oj/api.ts
@@ -353,6 +353,20 @@ export function getFlowchartSubmissions(params: {
   return http.get("flowchart/submissions", { params })
 }
 
+export function getFlowchartStatistics(
+  duration: { start?: string; end: string },
+  problemID?: string,
+  username?: string,
+) {
+  return http.get("admin/flowchart/statistics", {
+    params: {
+      ...duration,
+      problem_id: problemID,
+      username,
+    },
+  })
+}
+
 export function retryFlowchartSubmission(submissionId: string) {
   return http.post("flowchart/submission/retry", {
     submission_id: submissionId,
diff --git a/src/oj/submission/list.vue b/src/oj/submission/list.vue
index 40fd3b5..6609f35 100644
--- a/src/oj/submission/list.vue
+++ b/src/oj/submission/list.vue
@@ -22,6 +22,7 @@ import { LANGUAGE_SHOW_VALUE } from "utils/constants"
 import { renderTableTitle } from "utils/renders"
 import ButtonWithSearch from "./components/ButtonWithSearch.vue"
 import StatisticsPanel from "shared/components/StatisticsPanel.vue"
+import FlowchartStatisticsPanel from "shared/components/FlowchartStatisticsPanel.vue"
 import SubmissionLink from "./components/SubmissionLink.vue"
 import SubmissionDetail from "./detail.vue"
 import Grade from "./components/Grade.vue"
@@ -448,9 +449,14 @@ const flowchartColumns: DataTableColumn<FlowchartSubmissionListItem>[] = [
     preset="card"
     :style="{ maxWidth: isDesktop && '800px', maxHeight: '80vh' }"
     :content-style="{ overflow: 'auto' }"
-    title="提交记录的统计"
+    :title="query.language === 'Flowchart' ? '流程图提交的统计' : '提交记录的统计'"
   >
-    <StatisticsPanel :problem="query.problem" :username="query.username" />
+    <FlowchartStatisticsPanel
+      v-if="query.language === 'Flowchart'"
+      :problem="query.problem"
+      :username="query.username"
+    />
+    <StatisticsPanel v-else :problem="query.problem" :username="query.username" />
   </n-modal>
   <n-modal
     v-model:show="codePanel"
diff --git a/src/shared/components/FlowchartStatisticsPanel.vue b/src/shared/components/FlowchartStatisticsPanel.vue
new file mode 100644
index 0000000..6c23036
--- /dev/null
+++ b/src/shared/components/FlowchartStatisticsPanel.vue
@@ -0,0 +1,431 @@
+<template>
+  <n-flex align="center">
+    <n-input
+      placeholder="用户（可选）"
+      v-model:value="query.username"
+      style="width: 150px"
+      clearable
+    />
+    <n-input
+      placeholder="题号（可选）"
+      v-model:value="query.problem"
+      style="width: 120px"
+      clearable
+    />
+    <n-select
+      style="width: 120px"
+      v-model:value="query.duration"
+      :options="durationOptions"
+    />
+    <n-button type="primary" @click="handleStatistics">统计</n-button>
+  </n-flex>
+
+  <n-empty
+    v-if="data.total_count === 0"
+    description="暂无数据"
+    style="margin: 40px 0"
+  />
+
+  <template v-if="data.total_count > 0">
+    <n-divider style="margin: 16px 0" />
+    <n-flex justify="space-around">
+      <div class="stat-item">
+        <n-text>总提交</n-text>
+        <n-gradient-text type="info" font-size="28">
+          {{ data.total_count }}
+        </n-gradient-text>
+      </div>
+      <div class="stat-item">
+        <n-text>平均分</n-text>
+        <n-gradient-text type="primary" font-size="28">
+          {{ data.avg_score }}
+        </n-gradient-text>
+      </div>
+      <template v-if="data.person_count > 0">
+        <div class="stat-item">
+          <n-text>完成人数</n-text>
+          <n-gradient-text type="error" font-size="28">
+            {{ data.completed_count }}
+          </n-gradient-text>
+        </div>
+        <div class="stat-item">
+          <n-text>班级人数</n-text>
+          <n-gradient-text type="warning" font-size="28">
+            {{ data.person_count }}
+          </n-gradient-text>
+        </div>
+        <div class="stat-item">
+          <n-text>完成度</n-text>
+          <n-gradient-text type="success" font-size="28">
+            {{ completionRate }}
+          </n-gradient-text>
+        </div>
+      </template>
+    </n-flex>
+    <n-divider style="margin: 16px 0" />
+
+    <n-tabs animated type="line">
+      <n-tab-pane name="charts" tab="数据图表">
+        <n-grid :cols="2" :x-gap="20" :y-gap="20" style="margin-top: 12px">
+          <!-- 1. Grade pie chart -->
+          <n-gi>
+            <n-card title="等级分布">
+              <Doughnut :data="gradeChartData" :options="doughnutOptions" />
+            </n-card>
+          </n-gi>
+          <!-- 3. Completion doughnut -->
+          <n-gi v-if="data.person_count > 0">
+            <n-card title="班级完成度">
+              <Doughnut
+                :data="completionChartData"
+                :options="doughnutOptions"
+              />
+            </n-card>
+          </n-gi>
+          <!-- 2. Radar chart -->
+          <n-gi v-if="hasRadarData">
+            <n-card title="四维评分雷达图">
+              <Radar :data="radarChartData" :options="radarOptions" />
+            </n-card>
+          </n-gi>
+          <!-- 4. Word cloud -->
+          <n-gi v-if="data.word_frequencies.length > 0">
+            <n-card title="高频改进建议">
+              <div class="wordcloud-container">
+                <canvas ref="wordcloudCanvas"></canvas>
+              </div>
+            </n-card>
+          </n-gi>
+        </n-grid>
+      </n-tab-pane>
+
+      <n-tab-pane
+        v-if="data.data_unaccepted.length > 0"
+        name="unaccepted"
+        :tab="`未完成（${data.data_unaccepted.length}）`"
+      >
+        <n-flex size="large" align="center" style="margin-top: 12px">
+          <span
+            v-for="item in data.data_unaccepted"
+            :key="item.username"
+            style="font-size: 24px"
+          >
+            {{ item.real_name }}
+          </span>
+        </n-flex>
+      </n-tab-pane>
+    </n-tabs>
+  </template>
+</template>
+
+<script setup lang="ts">
+import { formatISO, sub, type Duration } from "date-fns"
+import { getFlowchartStatistics } from "oj/api"
+import { DURATION_OPTIONS } from "utils/constants"
+import { Doughnut, Radar } from "vue-chartjs"
+import {
+  Chart as ChartJS,
+  ArcElement,
+  Title,
+  Tooltip,
+  Legend,
+  RadialLinearScale,
+  PointElement,
+  LineElement,
+  Filler,
+  LinearScale,
+} from "chart.js"
+import {
+  WordCloudController,
+  WordElement,
+} from "chartjs-chart-wordcloud"
+
+ChartJS.register(
+  ArcElement,
+  Title,
+  Tooltip,
+  Legend,
+  RadialLinearScale,
+  PointElement,
+  LineElement,
+  Filler,
+  LinearScale,
+  WordCloudController,
+  WordElement,
+)
+
+interface Props {
+  problem: string
+  username: string
+}
+
+const props = defineProps<Props>()
+
+const durationOptions: SelectOption[] = [
+  { label: "10分钟内", value: "minutes:10" },
+  { label: "20分钟内", value: "minutes:20" },
+  { label: "30分钟内", value: "minutes:30" },
+  ...DURATION_OPTIONS,
+  { label: "全部时段", value: "all" },
+]
+
+const query = reactive({
+  username: props.username,
+  problem: props.problem,
+  duration: durationOptions[0].value,
+})
+
+interface StatisticsData {
+  total_count: number
+  avg_score: number
+  grade_distribution: Record<string, number>
+  criteria_averages: Record<string, { avg: number; max: number }>
+  person_count: number
+  completed_count: number
+  word_frequencies: { word: string; count: number }[]
+  data_unaccepted: { username: string; real_name: string }[]
+}
+
+const data = reactive<StatisticsData>({
+  total_count: 0,
+  avg_score: 0,
+  grade_distribution: {},
+  criteria_averages: {},
+  person_count: 0,
+  completed_count: 0,
+  word_frequencies: [],
+  data_unaccepted: [],
+})
+
+const wordcloudCanvas = useTemplateRef<HTMLCanvasElement>("wordcloudCanvas")
+let wordcloudChart: ChartJS | null = null
+
+const completionRate = computed(() => {
+  if (data.person_count <= 0) return "0%"
+  const rate = Math.min(
+    100,
+    (data.completed_count / data.person_count) * 100,
+  )
+  return `${Math.round(rate * 100) / 100}%`
+})
+
+const GRADE_COLORS: Record<string, { bg: string; border: string }> = {
+  S: { bg: "rgba(24, 160, 88, 0.6)", border: "rgba(24, 160, 88, 1)" },
+  A: { bg: "rgba(32, 128, 240, 0.6)", border: "rgba(32, 128, 240, 1)" },
+  B: { bg: "rgba(240, 160, 32, 0.6)", border: "rgba(240, 160, 32, 1)" },
+  C: { bg: "rgba(208, 48, 80, 0.6)", border: "rgba(208, 48, 80, 1)" },
+}
+
+const gradeChartData = computed(() => {
+  const grades = ["S", "A", "B", "C"]
+  const counts = grades.map((g) => data.grade_distribution[g] || 0)
+  const labels = grades.map(
+    (g) => `${g}级 (${data.grade_distribution[g] || 0})`,
+  )
+  return {
+    labels,
+    datasets: [
+      {
+        data: counts,
+        backgroundColor: grades.map((g) => GRADE_COLORS[g].bg),
+        borderColor: grades.map((g) => GRADE_COLORS[g].border),
+        borderWidth: 2,
+      },
+    ],
+  }
+})
+
+const completionChartData = computed(() => {
+  const uncompleted = Math.max(0, data.person_count - data.completed_count)
+  return {
+    labels: ["已完成", "未完成"],
+    datasets: [
+      {
+        data: [data.completed_count, uncompleted],
+        backgroundColor: [
+          "rgba(106, 176, 76, 0.6)",
+          "rgba(255, 159, 64, 0.6)",
+        ],
+        borderColor: ["rgba(106, 176, 76, 1)", "rgba(255, 159, 64, 1)"],
+        borderWidth: 2,
+      },
+    ],
+  }
+})
+
+const doughnutOptions = {
+  responsive: true,
+  maintainAspectRatio: false,
+  plugins: {
+    legend: { position: "bottom" as const },
+    tooltip: {
+      callbacks: {
+        label(context: any) {
+          const label = context.label || ""
+          const value = context.parsed || 0
+          const total = context.dataset.data.reduce(
+            (a: number, b: number) => a + b,
+            0,
+          )
+          const pct = ((value / total) * 100).toFixed(1)
+          return `${label}: ${value} (${pct}%)`
+        },
+      },
+    },
+  },
+}
+
+const CRITERIA_ORDER = ["逻辑正确性", "完整性", "规范性", "清晰度"]
+
+const hasRadarData = computed(() =>
+  CRITERIA_ORDER.some((k) => k in data.criteria_averages),
+)
+
+const radarChartData = computed(() => {
+  const labels = CRITERIA_ORDER
+  const values = CRITERIA_ORDER.map((k) => {
+    const item = data.criteria_averages[k]
+    if (!item) return 0
+    return Math.round((item.avg / item.max) * 100)
+  })
+  return {
+    labels,
+    datasets: [
+      {
+        label: "平均得分率 (%)",
+        data: values,
+        backgroundColor: "rgba(32, 128, 240, 0.2)",
+        borderColor: "rgba(32, 128, 240, 1)",
+        borderWidth: 2,
+        pointBackgroundColor: "rgba(32, 128, 240, 1)",
+      },
+    ],
+  }
+})
+
+const radarOptions = {
+  responsive: true,
+  maintainAspectRatio: false,
+  scales: {
+    r: {
+      beginAtZero: true,
+      max: 100,
+      ticks: { stepSize: 20 },
+    },
+  },
+  plugins: {
+    legend: { display: false },
+    tooltip: {
+      callbacks: {
+        label(context: any) {
+          const key = CRITERIA_ORDER[context.dataIndex]
+          const item = data.criteria_averages[key]
+          if (!item) return ""
+          return `${key}: ${item.avg}/${item.max} (${context.parsed.r}%)`
+        },
+      },
+    },
+  },
+}
+
+const WORD_COLORS = [
+  "#2080f0",
+  "#18a058",
+  "#f0a020",
+  "#d03050",
+  "#722ed1",
+  "#13c2c2",
+  "#1890ff",
+  "#52c41a",
+  "#faad14",
+  "#f5222d",
+]
+
+function renderWordCloud() {
+  if (!wordcloudCanvas.value || data.word_frequencies.length === 0) return
+
+  if (wordcloudChart) {
+    wordcloudChart.destroy()
+    wordcloudChart = null
+  }
+
+  const words = data.word_frequencies
+  const maxCount = Math.max(...words.map((w) => w.count))
+
+  wordcloudChart = new ChartJS(wordcloudCanvas.value, {
+    type: "wordCloud" as any,
+    data: {
+      labels: words.map((w) => w.word),
+      datasets: [
+        {
+          label: "",
+          data: words.map((w) => 10 + (w.count / maxCount) * 50),
+          color: words.map(
+            (_, i) => WORD_COLORS[i % WORD_COLORS.length],
+          ),
+        } as any,
+      ],
+    },
+    options: {
+      responsive: true,
+      maintainAspectRatio: false,
+      plugins: {
+        legend: { display: false },
+        tooltip: {
+          callbacks: {
+            label(context: any) {
+              const word = words[context.dataIndex]
+              return word ? `${word.word}: ${word.count}次` : ""
+            },
+          },
+        },
+      },
+    },
+  })
+}
+
+const subOptions = computed<Duration>(() => {
+  const dur =
+    durationOptions.find((it) => it.value === query.duration) ??
+    durationOptions[0]
+  const x = dur.value!.toString().split(":")
+  return { [x[0]]: parseInt(x[1]) }
+})
+
+async function handleStatistics() {
+  const current = Date.now()
+  const end = formatISO(current)
+  const duration =
+    query.duration === "all"
+      ? { end }
+      : { start: formatISO(sub(current, subOptions.value)), end }
+  const res = await getFlowchartStatistics(
+    duration,
+    query.problem,
+    query.username,
+  )
+  Object.assign(data, res.data)
+  await nextTick()
+  renderWordCloud()
+}
+
+onUnmounted(() => {
+  if (wordcloudChart) {
+    wordcloudChart.destroy()
+  }
+})
+</script>
+
+<style scoped>
+.stat-item {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 4px;
+}
+
+.wordcloud-container {
+  height: 300px;
+  position: relative;
+}
+</style>