diff --git a/components.d.ts b/components.d.ts
index c59e07a..8e791bb 100644
--- a/components.d.ts
+++ b/components.d.ts
@@ -18,6 +18,7 @@ declare module 'vue' {
     ChartCard: typeof import('./src/components/statistics/ChartCard.vue')['default']
     CodeDisplay: typeof import('./src/components/common/CodeDisplay.vue')['default']
     CustomSteps: typeof import('./src/components/common/CustomSteps.vue')['default']
+    DanmakuBar: typeof import('./src/components/common/DanmakuBar.vue')['default']
     ElAlert: typeof import('element-plus/es')['ElAlert']
     ElAside: typeof import('element-plus/es')['ElAside']
     ElAvatar: typeof import('element-plus/es')['ElAvatar']
diff --git a/src/components/common/DanmakuBar.vue b/src/components/common/DanmakuBar.vue
new file mode 100644
index 0000000..37d0ea9
--- /dev/null
+++ b/src/components/common/DanmakuBar.vue
@@ -0,0 +1,380 @@
+<template>
+  <div class="bg-white rounded-lg shadow-sm border border-gray-200 p-3 flex flex-col" style="min-height: 120px;">
+    <div class="flex items-center justify-between mb-2 pb-2 border-b border-gray-100">
+      <div class="flex items-center">
+        <el-icon size="16" class="mr-2">
+          <TrendCharts />
+        </el-icon>
+        <h3 class="text-sm font-semibold text-gray-800">实时动态</h3>
+      </div>
+      <div class="flex items-center gap-2">
+        <el-switch
+          v-model="enabled"
+          @change="handleToggle"
+          size="small"
+        />
+        <span class="text-xs text-gray-500">{{ enabled ? '开启' : '关闭' }}</span>
+      </div>
+    </div>
+    <div ref="danmakuWrapper" class="relative flex-1 overflow-hidden" style="min-height: 80px; max-height: 100px;">
+      <div
+        v-for="danmaku in activeDanmakus"
+        :key="danmaku.id"
+        :class="['danmaku-item', `danmaku-${danmaku.status}`]"
+        :style="{
+          top: `${danmaku.top}px`,
+          animationDuration: `${danmaku.duration}ms`,
+          animationDelay: `${danmaku.delay}ms`
+        }"
+      >
+        <div :class="['danmaku-content', `danmaku-content-${danmaku.status}`]">
+          <span :class="['company-name', `company-name-${danmaku.status}`]">{{ danmaku.companyName || '未知企业' }}</span>
+          <span class="separator">·</span>
+          <span :class="['product-name', `product-name-${danmaku.status}`]">{{ danmaku.productName || '未知产品' }}</span>
+          <span class="separator">·</span>
+          <span class="time-ago">{{ danmaku.timeAgo }}</span>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { apiCallApi } from '@/api'
+import { TrendCharts } from '@element-plus/icons-vue'
+import { onMounted, onUnmounted, ref } from 'vue'
+
+const props = defineProps({
+  refreshInterval: {
+    type: Number,
+    default: 5000 // 默认5秒刷新一次
+  },
+  maxDanmakus: {
+    type: Number,
+    default: 20 // 最多显示20条弹幕
+  },
+  danmakuSpeed: {
+    type: Number,
+    default: 15000 // 弹幕滚动速度（毫秒），更慢一些让用户能看到
+  }
+})
+
+const enabled = ref(true)
+const danmakuWrapper = ref(null)
+const activeDanmakus = ref([])
+const danmakuQueue = ref([])
+const lastFetchTime = ref(null)
+const fetchTimer = ref(null)
+const processedIds = ref(new Set()) // 已处理的记录ID，避免重复显示
+
+// 计算时间差（多少分钟前）
+const calculateTimeAgo = (timeStr) => {
+  if (!timeStr) return '刚刚'
+  
+  try {
+    const time = new Date(timeStr)
+    const now = new Date()
+    const diff = Math.floor((now - time) / 1000 / 60) // 分钟差
+    
+    if (diff < 1) return '刚刚'
+    if (diff < 60) return `${diff}分钟前`
+    
+    const hours = Math.floor(diff / 60)
+    if (hours < 24) return `${hours}小时前`
+    
+    const days = Math.floor(hours / 24)
+    return `${days}天前`
+  } catch (e) {
+    return '刚刚'
+  }
+}
+
+// 获取最新API调用记录
+const fetchLatestApiCalls = async () => {
+  if (!enabled.value) return
+  
+  try {
+    const params = {
+      page: 1,
+      page_size: props.maxDanmakus,
+      sort_by: 'created_at',
+      sort_order: 'desc'
+    }
+    
+    // 如果上次获取过数据，只获取更新的记录
+    if (lastFetchTime.value) {
+      const now = new Date()
+      const oneMinuteAgo = new Date(now.getTime() - 60000) // 1分钟前
+      params.start_time = oneMinuteAgo.toISOString().replace('T', ' ').substring(0, 19)
+    }
+    
+    const response = await apiCallApi.getAdminApiCalls(params)
+    
+    // 处理响应数据，兼容不同的响应格式
+    let items = []
+    if (response && response.data) {
+      if (response.data.items) {
+        items = response.data.items
+      } else if (Array.isArray(response.data)) {
+        items = response.data
+      }
+    }
+    
+    if (items.length > 0) {
+      
+      // 过滤已处理的记录，只添加新记录
+      const newItems = items.filter(item => {
+        if (processedIds.value.has(item.id)) {
+          return false
+        }
+        processedIds.value.add(item.id)
+        return true
+      })
+      
+      // 将新记录添加到队列
+      newItems.forEach(item => {
+        addDanmakuToQueue(item)
+      })
+      
+      lastFetchTime.value = new Date()
+    }
+  } catch (error) {
+    console.error('获取API调用记录失败:', error)
+  }
+}
+
+// 添加弹幕到队列
+const addDanmakuToQueue = (item) => {
+  const danmaku = {
+    id: item.id || `danmaku-${Date.now()}-${Math.random()}`,
+    companyName: item.company_name || item.user?.company_name || '未知企业',
+    productName: item.product_name || '未知产品',
+    productId: item.product_id || 'N/A',
+    status: item.status || 'pending',
+    startAt: item.start_at || item.created_at,
+    timeAgo: calculateTimeAgo(item.start_at || item.created_at),
+    top: 0,
+    duration: props.danmakuSpeed,
+    delay: 0
+  }
+  
+  // 计算垂直位置（避免重叠）
+  danmaku.top = calculateTopPosition()
+  danmaku.delay = Math.random() * 500 // 随机延迟0-500ms，让弹幕错开
+  
+  danmakuQueue.value.push(danmaku)
+  
+  // 如果队列中的弹幕太多，移除最旧的
+  if (danmakuQueue.value.length > props.maxDanmakus * 2) {
+    danmakuQueue.value.shift()
+  }
+  
+  // 添加到活动弹幕列表
+  activeDanmakus.value.push(danmaku)
+  
+  // 弹幕动画结束后移除
+  setTimeout(() => {
+    removeDanmaku(danmaku.id)
+  }, danmaku.duration + danmaku.delay + 1000)
+}
+
+// 计算弹幕的垂直位置（只显示两行，垂直居中）
+const calculateTopPosition = () => {
+  const maxLines = 2 // 最多显示两行
+  const containerHeight = 80 // 容器高度80px
+  const lineHeight = 40 // 每行高度40px
+  const totalHeight = maxLines * lineHeight // 两行总高度80px
+  const startTop = (containerHeight - totalHeight) / 2 // 垂直居中起始位置
+  
+  // 计算当前有多少条弹幕
+  const currentCount = activeDanmakus.value.length
+  
+  // 如果已经有两条或更多，移除最旧的，保持在两行
+  if (currentCount >= maxLines) {
+    // 移除最旧的弹幕
+    const oldestDanmaku = activeDanmakus.value[0]
+    if (oldestDanmaku) {
+      removeDanmaku(oldestDanmaku.id)
+    }
+  }
+  
+  // 计算新弹幕的位置（两行垂直居中）
+  if (activeDanmakus.value.length === 0) {
+    return startTop // 第一条从居中位置开始
+  } else {
+    return startTop + lineHeight // 第二条在下一行
+  }
+}
+
+// 移除弹幕
+const removeDanmaku = (id) => {
+  const index = activeDanmakus.value.findIndex(d => d.id === id)
+  if (index > -1) {
+    activeDanmakus.value.splice(index, 1)
+  }
+  
+  const queueIndex = danmakuQueue.value.findIndex(d => d.id === id)
+  if (queueIndex > -1) {
+    danmakuQueue.value.splice(queueIndex, 1)
+  }
+}
+
+// 更新所有弹幕的时间显示
+const updateTimeAgo = () => {
+  activeDanmakus.value.forEach(danmaku => {
+    if (danmaku.startAt) {
+      danmaku.timeAgo = calculateTimeAgo(danmaku.startAt)
+    }
+  })
+}
+
+// 处理开关切换
+const handleToggle = (value) => {
+  if (value) {
+    startFetching()
+  } else {
+    stopFetching()
+  }
+}
+
+// 开始获取数据
+const startFetching = () => {
+  // 立即获取一次
+  fetchLatestApiCalls()
+  
+  // 设置定时器
+  if (fetchTimer.value) {
+    clearInterval(fetchTimer.value)
+  }
+  
+  fetchTimer.value = setInterval(() => {
+    fetchLatestApiCalls()
+  }, props.refreshInterval)
+  
+  // 定时更新"多少分钟前"
+  setInterval(() => {
+    if (enabled.value) {
+      updateTimeAgo()
+    }
+  }, 60000) // 每分钟更新一次时间显示
+}
+
+// 停止获取数据
+const stopFetching = () => {
+  if (fetchTimer.value) {
+    clearInterval(fetchTimer.value)
+    fetchTimer.value = null
+  }
+}
+
+onMounted(() => {
+  if (enabled.value) {
+    startFetching()
+  }
+})
+
+onUnmounted(() => {
+  stopFetching()
+})
+</script>
+
+<style scoped>
+.danmaku-item {
+  position: absolute;
+  left: 0;
+  white-space: nowrap;
+  animation: danmaku-scroll linear forwards;
+  pointer-events: none;
+  will-change: transform;
+  transform: translateZ(0);
+}
+
+@keyframes danmaku-scroll {
+  from {
+    transform: translateX(100%);
+    opacity: 1;
+  }
+  to {
+    transform: translateX(-100%);
+    opacity: 1;
+  }
+}
+
+.danmaku-content {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.5rem 1rem;
+  border-radius: 9999px;
+  font-size: 0.75rem;
+  font-weight: 500;
+  background: linear-gradient(to right, #eff6ff, #faf5ff);
+  border: 1px solid #bfdbfe;
+  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
+  backdrop-filter: blur(4px);
+}
+
+.danmaku-content-success {
+  background: linear-gradient(to right, #f0fdf4, #ecfdf5);
+  border-color: #86efac;
+}
+
+.danmaku-content-failed {
+  background: linear-gradient(to right, #fef2f2, #fff1f2);
+  border-color: #fca5a5;
+}
+
+.danmaku-content-pending {
+  background: linear-gradient(to right, #fefce8, #fffbeb);
+  border-color: #fde047;
+}
+
+.company-name {
+  color: #1d4ed8;
+  font-weight: 600;
+}
+
+.company-name-success {
+  color: #15803d;
+}
+
+.company-name-failed {
+  color: #dc2626;
+}
+
+.company-name-pending {
+  color: #ca8a04;
+}
+
+.product-name {
+  color: #7c3aed;
+}
+
+.product-name-success {
+  color: #059669;
+}
+
+.product-name-failed {
+  color: #e11d48;
+}
+
+.product-name-pending {
+  color: #d97706;
+}
+
+.product-id {
+  color: #4b5563;
+  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
+  font-size: 0.75rem;
+}
+
+.separator {
+  color: #9ca3af;
+}
+
+.time-ago {
+  color: #6b7280;
+  font-style: italic;
+}
+</style>
+
diff --git a/src/pages/admin/statistics/SystemStatisticsPage.vue b/src/pages/admin/statistics/SystemStatisticsPage.vue
index 5083086..8b6f043 100644
--- a/src/pages/admin/statistics/SystemStatisticsPage.vue
+++ b/src/pages/admin/statistics/SystemStatisticsPage.vue
@@ -102,69 +102,16 @@
           </div>
         </div>
       </div>
-
       <!-- 图表区域 - 紧凑布局 -->
       <!-- 主要内容区域 -->
       <div class="flex flex-col xl:flex-row gap-4">
+        
         <!-- 左侧图表区域 -->
         <div class="flex-1">
           <div class="grid grid-cols-1 xl:grid-cols-2 gap-4">
-            <!-- 数据弹幕区域 - 独占2列 -->
-            <div class="xl:col-span-2">
-              <div class="bg-white rounded-lg shadow-sm border border-gray-200 p-3">
-                <div class="flex items-center justify-between mb-3">
-                  <div class="flex items-center">
-                    <div class="w-8 h-8 flex items-center justify-center rounded-lg bg-indigo-500 text-white mr-2">
-                      <el-icon size="12">
-                        <TrendCharts />
-                      </el-icon>
-                    </div>
-                    <h3 class="text-sm font-semibold text-gray-800">实时API调用动态</h3>
-                  </div>
-                  <div class="text-xs text-gray-500">
-                    实时更新 · 最多显示100条
-                  </div>
-                </div>
-                
-                <!-- 弹幕容器 -->
-                <div ref="danmakuContainer" class="relative h-20 overflow-hidden bg-gradient-to-b from-gray-50 to-white rounded-lg border border-gray-100">
-                  <!-- 无数据提示 -->
-                  <div v-if="danmakuItems.length === 0" class="absolute inset-0 flex items-center justify-center text-gray-400 text-sm">
-                    <div class="text-center">
-                      <el-icon size="24" class="mb-2 animate-spin">
-                        <Loading />
-                      </el-icon>
-                      <p>正在加载数据...</p>
-                    </div>
-                  </div>
-                  
-                  <!-- 弹幕项 - 每条独立滚动 -->
-                  <div
-                    v-for="(item, index) in danmakuItems"
-                    :key="item.id"
-                    :style="getDanmakuStyle(item, index)"
-                    class="absolute danmaku-item bg-white rounded-lg shadow-sm border px-2.5 py-1 whitespace-nowrap cursor-pointer hover:shadow-md transition-shadow"
-                    :class="[getDanmakuClass(item), { 'danmaku-paused': pausedDanmakuIds.has(item.id) }]"
-                    @mouseenter="pauseDanmaku(item.id)"
-                    @mouseleave="resumeDanmaku(item.id)"
-                    @animationend="onDanmakuAnimationEnd(item.id)"
-                  >
-                    <div class="flex items-center gap-1.5">
-                      <div class="flex-shrink-0 w-5 h-5 rounded-full flex items-center justify-center text-white text-xs font-bold"
-                        :class="getUserAvatarClass(item.userId)">
-                        {{ getUsernameInitial(item.username) }}
-                      </div>
-                      <span class="text-xs font-medium text-gray-800">{{ item.username }}</span>
-                      <span class="text-xs text-gray-400">·</span>
-                      <span class="text-xs text-purple-600 font-medium">{{ item.apiName }}</span>
-                      <span class="text-xs text-gray-400">·</span>
-                      <span class="text-xs text-blue-600 font-semibold">第{{ item.callCount || 1 }}次</span>
-                      <span class="text-xs text-gray-400">·</span>
-                      <span class="text-xs text-gray-500">{{ formatRelativeTime(item.createdAt) }}</span>
-                    </div>
-                  </div>
-                </div>
-              </div>
+            <!-- 弹幕系统区域 - 占据两列宽度 -->
+            <div class="col-span-1 xl:col-span-2">
+              <DanmakuBar />
             </div>
             <!-- 用户注册与认证趋势 -->
             <div class="bg-white rounded-lg shadow-sm border border-gray-200 p-3">
@@ -523,7 +470,6 @@
 </template>
 
 <script setup>
-import { apiCallApi } from '@/api'
 import {
   adminGetApiDomainStatistics,
   adminGetApiPopularityRanking,
@@ -534,6 +480,7 @@ import {
   adminGetUserCallRanking,
   adminGetUserDomainStatistics
 } from '@/api/statistics'
+import DanmakuBar from '@/components/common/DanmakuBar.vue'
 import { Check, Loading, Money, Refresh, TrendCharts, User } from '@element-plus/icons-vue'
 import * as echarts from 'echarts'
 import { ElMessage } from 'element-plus'
@@ -582,27 +529,6 @@ const apiPopularityData = ref([])
 // 今日认证企业数据
 const todayCertifiedEnterprises = ref([])
 
-// 弹幕相关数据 - 重构为实时显示模式
-const danmakuItems = ref([]) // 正在显示的弹幕列表
-const danmakuContainer = ref(null)
-const danmakuPollingTimer = ref(null) // 数据库查询定时器
-const lastQueryTime = ref(null) // 最后查询的时间点
-const processedRecordIds = ref(new Set()) // 已处理的记录ID集合，用于去重
-const pausedDanmakuIds = ref(new Set()) // 暂停的弹幕ID集合
-const danmakuDisplayOrder = ref(0) // 弹幕显示顺序，用于z-index
-const isProcessing = ref(false) // 是否正在处理新记录，避免并发
-
-// 配置常量
-const MAX_DANMAKU_ITEMS = 100 // 最多显示的弹幕数量
-const DANMAKU_POLLING_INTERVAL = 1500 // 数据库查询间隔（毫秒）- 1.5秒，提高实时性
-const DANMAKU_ITEM_HEIGHT = 28 // 每条弹幕的高度
-const DANMAKU_CONTAINER_HEIGHT = 80 // 容器高度
-const DANMAKU_MIN_SPACING = 32 // 最小垂直间距（避免重叠）
-const DANMAKU_ANIMATION_DURATION = 15 // 动画持续时间（秒）
-const DANMAKU_ESTIMATED_WIDTH = 250 // 估算的弹幕宽度（像素）
-const MAX_PROCESSED_IDS = 1000 // 最大已处理ID数量，避免内存泄漏
-
-
 // 快捷选择配置
 const shortcuts = [
   {
@@ -1396,437 +1322,10 @@ const getNoDataMessage = (periodRef) => {
 
 
 
-// 获取用户名显示文本
-const getDisplayUsername = (record) => {
-  // 尝试多种可能的字段名（兼容不同的命名风格）
-  if (record.company_name || record.companyName) {
-    return record.company_name || record.companyName
-  }
-  if (record.user?.company_name || record.user?.companyName) {
-    return record.user.company_name || record.user.companyName
-  }
-  if (record.user?.phone) {
-    return record.user.phone
-  }
-  // 如果都没有，使用用户ID的前8位作为显示
-  if (record.user_id || record.userId) {
-    const userId = record.user_id || record.userId
-    return `用户${userId.substring(0, 8)}`
-  }
-  return '未知用户'
-}
-
-// 获取API名称
-const getApiName = (record) => {
-  return record.product_name || record.productName || '未知API'
-}
-
-// 格式化日期时间为后端期望的格式
-const formatDateTime = (date) => {
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
-// 获取调用次数（简化版本，实时显示不需要精确计数）
-const getCallCount = (record) => {
-  // 实时弹幕中，调用次数可以简化为1，或者从记录中获取
-  // 如果需要精确计数，可以后续优化
-  return record.call_count || 1
-}
-
-// 加载弹幕数据 - 实时模式：查询到新记录立即显示
-const loadDanmakuData = async () => {
-  // 如果正在处理，跳过本次查询
-  if (isProcessing.value) {
-    return
-  }
-
-  try {
-    isProcessing.value = true
-    const now = new Date()
-    let params = {}
-
-    // 构建查询参数
-    if (!lastQueryTime.value) {
-      // 首次加载：获取最近30条记录
-      params = {
-        page: 1,
-        page_size: 30,
-        sort_by: 'created_at',
-        sort_order: 'desc'
-      }
-    } else {
-      // 获取自上次查询时间之后的新记录
-      params = {
-        page: 1,
-        page_size: 50,
-        start_time: formatDateTime(lastQueryTime.value),
-        sort_by: 'created_at',
-        sort_order: 'desc'
-      }
-    }
-
-    const response = await apiCallApi.getAdminApiCalls(params)
-
-    if (response.success && response.data?.items) {
-      const records = response.data.items
-
-      // 过滤掉已处理的记录（使用ID去重）
-      const newRecords = records.filter(record => {
-        const recordId = record.id || `${record.user_id || record.userId}_${record.created_at || record.createdAt}`
-        if (processedRecordIds.value.has(recordId)) {
-          return false
-        }
-        processedRecordIds.value.add(recordId)
-        
-        // 限制已处理ID集合的大小，避免内存泄漏
-        if (processedRecordIds.value.size > MAX_PROCESSED_IDS) {
-          const idsArray = Array.from(processedRecordIds.value)
-          processedRecordIds.value = new Set(idsArray.slice(-MAX_PROCESSED_IDS / 2))
-        }
-        return true
-      })
-
-      // 更新查询时间
-      if (records.length > 0) {
-        const latestRecord = records.reduce((latest, current) => {
-          const latestTime = new Date(latest.created_at || latest.createdAt || 0).getTime()
-          const currentTime = new Date(current.created_at || current.createdAt || 0).getTime()
-          return currentTime > latestTime ? current : latest
-        })
-        const latestTime = new Date(latestRecord.created_at || latestRecord.createdAt || now)
-        if (!lastQueryTime.value || latestTime > lastQueryTime.value) {
-          lastQueryTime.value = latestTime
-        }
-      } else {
-        // 如果没有记录，更新时间到当前时间减1秒
-        const oneSecondAgo = new Date(now.getTime() - 1000)
-        if (!lastQueryTime.value || oneSecondAgo > lastQueryTime.value) {
-          lastQueryTime.value = oneSecondAgo
-        }
-      }
-
-      // 如果有新记录，立即处理并显示
-      if (newRecords.length > 0) {
-        // 按时间排序（旧的在前，新的在后）
-        const sortedRecords = newRecords.sort((a, b) => {
-          const timeA = new Date(a.created_at || a.createdAt || 0).getTime()
-          const timeB = new Date(b.created_at || b.createdAt || 0).getTime()
-          return timeA - timeB
-        })
-
-        // 立即处理并显示新记录
-        await processAndDisplayRecords(sortedRecords)
-      }
-    }
-  } catch (err) {
-    console.error('获取弹幕数据失败:', err)
-  } finally {
-    isProcessing.value = false
-  }
-}
-
-
-// 计算弹幕右边缘离开容器右边界所需的时间（秒）
-const getDanmakuExitRightTime = () => {
-  if (!danmakuContainer.value) {
-    return 1.0 // 默认值
-  }
-  
-  const containerWidth = danmakuContainer.value.clientWidth || 1200
-  const danmakuWidth = DANMAKU_ESTIMATED_WIDTH
-  
-  // 弹幕从 left: 100% 开始，移动到完全离开左边界
-  // 总移动距离 = 容器宽度 + 弹幕宽度
-  const totalDistance = containerWidth + danmakuWidth
-  
-  // 弹幕右边缘离开右边界需要移动的距离 = 弹幕宽度
-  // 时间 = (弹幕宽度 / 总移动距离) * 动画持续时间
-  const exitTime = (danmakuWidth / totalDistance) * DANMAKU_ANIMATION_DURATION
-  
-  // 限制在合理范围内（0.5-2秒）
-  return Math.max(0.5, Math.min(exitTime, 2.0))
-}
-
-// 获取随机弹幕位置（避免重叠）
-const getRandomDanmakuTop = (existingItems, currentIndex) => {
-  // 使用实际容器高度，如果没有则使用默认值
-  const containerHeight = danmakuContainer.value?.clientHeight || DANMAKU_CONTAINER_HEIGHT
-  const itemHeight = DANMAKU_ITEM_HEIGHT
-  const minSpacing = DANMAKU_MIN_SPACING
-  const padding = 4 // 上下边距
-  
-  // 可用空间：容器高度减去上下边距和弹幕高度
-  const availableHeight = Math.max(0, containerHeight - itemHeight - padding * 2)
-  
-  if (availableHeight <= 0) {
-    // 如果可用空间不足，返回中间位置
-    return containerHeight / 2 - itemHeight / 2
-  }
-  
-  // 获取当前正在显示的弹幕位置（用于碰撞检测）
-  // 只考虑最近显示的弹幕，因为旧的弹幕已经滚出屏幕
-  const activeTops = existingItems
-    .filter(item => item.randomTop !== undefined)
-    .slice(-5) // 只考虑最近5条弹幕，避免过度限制
-    .map(item => item.randomTop)
-    .sort((a, b) => a - b)
-  
-  // 尝试找到不重叠的位置
-  let attempts = 0
-  let top = 0
-  
-  while (attempts < 20) {
-    // 在可用空间内随机生成位置
-    top = padding + Math.random() * availableHeight
-    
-    // 检查是否与现有弹幕重叠
-    const hasOverlap = activeTops.some(existingTop => {
-      const distance = Math.abs(top - existingTop)
-      return distance < minSpacing
-    })
-    
-    if (!hasOverlap) {
-      break
-    }
-    
-    attempts++
-  }
-  
-  // 如果20次尝试都失败，使用简单的随机位置（但尽量分散）
-  if (attempts >= 20) {
-    // 将空间分成多个区域，随机选择一个区域
-    const zones = 4 // 分成4个区域
-    const zoneHeight = availableHeight / zones
-    const selectedZone = Math.floor(Math.random() * zones)
-    top = padding + selectedZone * zoneHeight + Math.random() * zoneHeight * 0.6
-  }
-  
-  return Math.max(padding, Math.min(top, containerHeight - itemHeight - padding))
-}
-
-// 获取弹幕样式 - 每条弹幕独立滚动，速度一致，位置随机
-const getDanmakuStyle = (item, index) => {
-  if (!danmakuContainer.value) {
-    return {}
-  }
-  
-  // 使用已计算的随机top位置，如果没有则生成一个
-  const top = item.randomTop !== undefined 
-    ? item.randomTop 
-    : getRandomDanmakuTop(danmakuItems.value, index)
-  
-  // 使用已计算的延迟时间，如果没有则使用默认值
-  const delay = item.displayDelay !== undefined ? item.displayDelay : 0
-  
-  // 使用已计算的显示顺序，如果没有则使用索引
-  const zIndex = 1000 + (item.displayOrder || index)
-  
-  return {
-    top: `${top}px`,
-    left: '100%', // 从右侧开始
-    animationDelay: `${delay}s`,
-    animationDuration: '15s', // 统一的滚动速度
-    zIndex: zIndex // 先出现的弹幕层级更高，避免后面的遮盖前面的
-  }
-}
-
-// 获取弹幕类名
-const getDanmakuClass = (item) => {
-  // 根据用户ID生成一致的颜色
-  const colors = [
-    'border-purple-300 bg-purple-50',
-    'border-blue-300 bg-blue-50',
-    'border-green-300 bg-green-50',
-    'border-yellow-300 bg-yellow-50',
-    'border-red-300 bg-red-50',
-    'border-indigo-300 bg-indigo-50',
-    'border-pink-300 bg-pink-50',
-    'border-teal-300 bg-teal-50'
-  ]
-  const index = (item.userId?.charCodeAt(0) || 0) % colors.length
-  return colors[index]
-}
-
-// 获取用户头像类名
-const getUserAvatarClass = (userId) => {
-  // 根据用户ID生成一致的颜色
-  const colors = [
-    'bg-purple-500',
-    'bg-blue-500',
-    'bg-green-500',
-    'bg-yellow-500',
-    'bg-red-500',
-    'bg-indigo-500',
-    'bg-pink-500',
-    'bg-teal-500'
-  ]
-  const index = (userId?.charCodeAt(0) || 0) % colors.length
-  return colors[index]
-}
-
-// 获取用户名首字母
-const getUsernameInitial = (username) => {
-  if (!username) return '?'
-  // 如果是中文，取第一个字符；如果是英文，取首字母大写
-  const firstChar = username.charAt(0)
-  if (/[\u4e00-\u9fa5]/.test(firstChar)) {
-    return firstChar
-  }
-  return firstChar.toUpperCase()
-}
-
-// 格式化相对时间
-const formatRelativeTime = (timeStr) => {
-  if (!timeStr) return '刚刚'
-  
-  const now = new Date()
-  const time = new Date(timeStr)
-  const diff = Math.floor((now - time) / 1000) // 秒数差
-  
-  if (diff < 60) {
-    return '刚刚'
-  } else if (diff < 3600) {
-    return `${Math.floor(diff / 60)}分钟前`
-  } else if (diff < 86400) {
-    return `${Math.floor(diff / 3600)}小时前`
-  } else {
-    return formatTime(timeStr)
-  }
-}
-
-// 暂停弹幕滚动
-const pauseDanmaku = (itemId) => {
-  pausedDanmakuIds.value.add(itemId)
-}
-
-// 恢复弹幕滚动
-const resumeDanmaku = (itemId) => {
-  pausedDanmakuIds.value.delete(itemId)
-}
-
-// 处理并显示记录 - 实时模式：立即显示新记录
-const processAndDisplayRecords = async (records) => {
-  if (!records || records.length === 0) {
-    return
-  }
-
-  const now = Date.now()
-  let nextDisplayTime = now
-
-  // 处理每条记录
-  records.forEach((record, index) => {
-    const username = getDisplayUsername(record)
-    const apiName = getApiName(record)
-    const userId = record.user_id || record.userId || 'unknown'
-    const createdAt = record.created_at || record.createdAt || new Date().toISOString()
-    const productId = record.product_id || record.productId || ''
-    
-    // 使用记录ID作为唯一标识
-    const recordId = record.id || `${userId}_${productId}_${createdAt}_${index}_${Math.random().toString(36).substr(2, 9)}`
-    
-    // 计算调用次数
-    const callCount = getCallCount(record)
-    
-    // 计算随机top位置（避免重叠）
-    const randomTop = getRandomDanmakuTop(danmakuItems.value, danmakuItems.value.length + index)
-    
-    // 计算显示延迟：确保弹幕不会重叠
-    let displayDelay = 0
-    if (danmakuItems.value.length > 0) {
-      // 计算最后一条弹幕的退出时间
-      const lastItem = danmakuItems.value[danmakuItems.value.length - 1]
-      const lastItemStartTime = lastItem.actualDisplayTime || now
-      const exitRightTime = getDanmakuExitRightTime() * 1000
-      const lastItemExitTime = lastItemStartTime + exitRightTime
-      
-      // 如果最后一条弹幕还没退出，需要等待
-      if (lastItemExitTime > now) {
-        displayDelay = (lastItemExitTime - now) / 1000
-      } else {
-        // 否则可以立即显示，但添加小随机延迟避免重叠
-        displayDelay = Math.random() * 0.3
-      }
-    }
-    
-    // 创建弹幕项
-    const danmakuItem = {
-      id: recordId,
-      userId: userId,
-      username: username,
-      apiName: apiName,
-      productId: productId,
-      createdAt: createdAt,
-      timestamp: new Date(createdAt).getTime(),
-      callCount: callCount,
-      clientIp: record.client_ip || record.clientIp || '',
-      status: record.status || '',
-      cost: record.cost || '',
-      transactionId: record.transaction_id || record.transactionId || '',
-      displayDelay: displayDelay,
-      displayOrder: danmakuDisplayOrder.value++,
-      randomTop: randomTop,
-      actualDisplayTime: now + (displayDelay * 1000)
-    }
-    
-    // 延迟显示或立即显示
-    if (displayDelay > 0) {
-      setTimeout(() => {
-        danmakuItems.value.push(danmakuItem)
-        // 限制弹幕数量
-        if (danmakuItems.value.length > MAX_DANMAKU_ITEMS) {
-          danmakuItems.value = danmakuItems.value.slice(-MAX_DANMAKU_ITEMS)
-        }
-      }, displayDelay * 1000)
-    } else {
-      danmakuItems.value.push(danmakuItem)
-      // 限制弹幕数量
-      if (danmakuItems.value.length > MAX_DANMAKU_ITEMS) {
-        danmakuItems.value = danmakuItems.value.slice(-MAX_DANMAKU_ITEMS)
-      }
-    }
-  })
-}
-
-// 弹幕动画结束回调 - 从显示列表中移除已播放完成的弹幕
-const onDanmakuAnimationEnd = (itemId) => {
-  // 只有当弹幕不在暂停状态时才移除（避免鼠标悬停时误删）
-  if (!pausedDanmakuIds.value.has(itemId)) {
-    const index = danmakuItems.value.findIndex(item => item.id === itemId)
-    if (index !== -1) {
-      danmakuItems.value.splice(index, 1)
-    }
-  }
-}
-
-// 启动弹幕系统 - 实时模式
-const startDanmakuPolling = () => {
-  // 立即查询一次数据库
-  loadDanmakuData()
-  
-  // 定时查询数据库，查询到新记录立即显示
-  danmakuPollingTimer.value = setInterval(() => {
-    loadDanmakuData()
-  }, DANMAKU_POLLING_INTERVAL)
-}
-
-// 停止弹幕系统
-const stopDanmakuPolling = () => {
-  if (danmakuPollingTimer.value) {
-    clearInterval(danmakuPollingTimer.value)
-    danmakuPollingTimer.value = null
-  }
-}
 
 onMounted(() => {
   initDefaultDateRange()
   loadSystemStatistics()
-  startDanmakuPolling()
 })
 
 // 组件卸载时清理
@@ -1838,44 +1337,8 @@ onUnmounted(() => {
     }
   })
   chartInstances.value = []
-  
-  // 停止弹幕轮询
-  stopDanmakuPolling()
 })
 </script>
 
 <style scoped>
-/* 弹幕滚动动画 - 从左到右，速度一致，只播放一次 */
-.danmaku-item {
-  animation: danmakuScroll 15s linear forwards;
-  will-change: transform;
-}
-
-/* 暂停弹幕动画 */
-.danmaku-item.danmaku-paused {
-  animation-play-state: paused;
-}
-
-@keyframes danmakuScroll {
-  0% {
-    transform: translateX(0);
-    opacity: 0;
-  }
-  2% {
-    opacity: 1;
-  }
-  98% {
-    opacity: 1;
-  }
-  100% {
-    transform: translateX(calc(-100vw - 100%));
-    opacity: 0;
-  }
-}
-
-/* 弹幕容器 */
-.danmaku-container {
-  position: relative;
-  overflow: hidden;
-}
 </style>