diff --git a/backend/src/main/java/com/designhub/service/UserService.java b/backend/src/main/java/com/designhub/service/UserService.java
index f843b5c..e9abee9 100644
--- a/backend/src/main/java/com/designhub/service/UserService.java
+++ b/backend/src/main/java/com/designhub/service/UserService.java
@@ -942,10 +942,11 @@ public class UserService {
                 .roles(roleCodes)
                 .status(user.getStatus())
                 .isDepartmentLeader(isDepartmentLeader)
+                .isAdmin(user.getIsAdmin())
                 .build();
         
-        log.info("getUserInfoByToken - 返回VO: id={}, deptId={}, deptName={}, roleIds={}, roles={}, isDepartmentLeader={}", 
-                 userInfoVO.getId(), userInfoVO.getDeptId(), userInfoVO.getDeptName(), userInfoVO.getRoleIds(), roleCodes, isDepartmentLeader);
+        log.info("getUserInfoByToken - 返回VO: id={}, deptId={}, deptName={}, roleIds={}, roles={}, isDepartmentLeader={}, isAdmin={}", 
+                 userInfoVO.getId(), userInfoVO.getDeptId(), userInfoVO.getDeptName(), userInfoVO.getRoleIds(), roleCodes, isDepartmentLeader, user.getIsAdmin());
         
         return userInfoVO;
     }
diff --git a/backend/src/main/java/com/designhub/vo/UserInfoVO.java b/backend/src/main/java/com/designhub/vo/UserInfoVO.java
index 1b5efff..a92b949 100644
--- a/backend/src/main/java/com/designhub/vo/UserInfoVO.java
+++ b/backend/src/main/java/com/designhub/vo/UserInfoVO.java
@@ -80,5 +80,10 @@ public class UserInfoVO {
      * 是否为部门负责人：0-否 1-是
      */
     private Integer isDepartmentLeader;
+    
+    /**
+     * 是否为管理员：0-否 1-是
+     */
+    private Integer isAdmin;
 }
 
diff --git a/frontend/src/views/Analytics.vue b/frontend/src/views/Analytics.vue
index 69fd29d..7f7c77a 100644
--- a/frontend/src/views/Analytics.vue
+++ b/frontend/src/views/Analytics.vue
@@ -211,7 +211,7 @@
                           <template #bodyCell="{ column, record, index }">
                             <template v-if="column.key === 'rank'">
                               <span class="rank-badge" :class="getRankClass(index + 1)">
-                                {{ index === 0 ? '🥇' : index === 1 ? '🥈' : index === 2 ? '🥉' : index + 1 }}
+                                {{ index + 1 }}
                               </span>
                             </template>
                             <template v-else-if="column.key === 'onTimeRate'">
@@ -803,8 +803,85 @@ const getWarningActionText = (type: string) => {
   }
 }
 
+// 导出数据为 CSV
 const exportData = () => {
-  message.info('导出功能开发中...')
+  const monthStr = selectedMonth.value || dayjs().format('YYYY-MM')
+  let csvContent = '\uFEFF' // BOM for UTF-8 encoding
+  
+  // 1. 概览数据
+  csvContent += '【核心指标概览】\n'
+  csvContent += '指标,数值\n'
+  csvContent += `总任务数,${overview.value.totalDemands}\n`
+  csvContent += `待处理,${overview.value.pendingDemands}\n`
+  csvContent += `进行中,${inProgressCount.value}\n`
+  csvContent += `已完成,${overview.value.completedDemands}\n`
+  csvContent += `完成率,${completionRate.value}%\n`
+  csvContent += `准时率,${onTimeRate.value}%\n`
+  csvContent += '\n'
+  
+  // 2. 用户需求统计
+  if (statistics.userStats && statistics.userStats.length > 0) {
+    csvContent += '【用户需求统计】\n'
+    csvContent += '排名,用户名,部门,发起数,完成数,总积分,完成率\n'
+    statistics.userStats.forEach((user: any, index: number) => {
+      const rate = user.totalDemands > 0 ? ((user.completedDemands / user.totalDemands) * 100).toFixed(1) : '0.0'
+      csvContent += `${index + 1},${user.userName || '-'},${user.deptName || '-'},${user.totalDemands},${user.completedDemands},${user.totalScore || 0},${rate}%\n`
+    })
+    csvContent += '\n'
+  }
+  
+  // 3. 部门需求统计
+  if (statistics.deptStats && statistics.deptStats.length > 0) {
+    csvContent += '【部门需求统计】\n'
+    csvContent += '排名,部门名称,发起数,完成数,完成率\n'
+    statistics.deptStats.forEach((dept: any, index: number) => {
+      const rate = dept.totalDemands > 0 ? ((dept.completedDemands / dept.totalDemands) * 100).toFixed(1) : '0.0'
+      csvContent += `${index + 1},${dept.deptName || '-'},${dept.totalDemands},${dept.completedDemands},${rate}%\n`
+    })
+    csvContent += '\n'
+  }
+  
+  // 4. 设计师绩效
+  if (designerPerformance.designerStats && designerPerformance.designerStats.length > 0) {
+    csvContent += '【设计师绩效】\n'
+    csvContent += '排名,设计师,部门,接单量,完成量,完成率,准时率,评分\n'
+    designerPerformance.designerStats.forEach((designer: any, index: number) => {
+      csvContent += `${index + 1},${designer.realName || '-'},${designer.deptName || '-'},${designer.receivedCount || 0},${designer.completedCount || 0},${designer.completionRate || 0}%,${designer.onTimeRate || 0}%,${designer.avgRating?.toFixed(1) || '-'}\n`
+    })
+    csvContent += '\n'
+  }
+  
+  // 5. 流程效率指标
+  csvContent += '【流程效率指标】\n'
+  csvContent += '指标,本周,上周,本月,目标\n'
+  efficiencyTableData.value.forEach((row: any) => {
+    csvContent += `${row.metric},${row.week},${row.lastWeek},${row.month},${row.target}\n`
+  })
+  csvContent += '\n'
+  
+  // 6. 预警任务
+  if (warningTasks.value && warningTasks.value.length > 0) {
+    csvContent += '【预警任务】\n'
+    csvContent += '级别,任务名称,处理人,预警原因\n'
+    warningTasks.value.forEach((task: any) => {
+      const level = task.warningLevel === 'urgent' ? '紧急' : task.warningLevel === 'warning' ? '警告' : '正常'
+      csvContent += `${level},${task.taskTitle || '-'},${task.receiverName || '-'},${task.warningReason || '-'}\n`
+    })
+    csvContent += '\n'
+  }
+  
+  // 创建并下载文件
+  const blob = new Blob([csvContent], { type: 'text/csv;charset=utf-8;' })
+  const link = document.createElement('a')
+  link.href = URL.createObjectURL(blob)
+  link.download = `数据分析报表_${monthStr}.csv`
+  link.style.display = 'none'
+  document.body.appendChild(link)
+  link.click()
+  document.body.removeChild(link)
+  URL.revokeObjectURL(link.href)
+  
+  message.success('报表导出成功')
 }
 
 onMounted(() => {
@@ -1194,10 +1271,10 @@ onMounted(() => {
   
   .ant-table-thead > tr > th {
     background: transparent !important;
-    border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.02) !important;
     color: $text-secondary !important;
     font-weight: 500;
-    padding: 16px;
+    padding: 16px 24px;
     
     &::before {
       display: none !important; // 移除表头分割线
@@ -1205,14 +1282,20 @@ onMounted(() => {
   }
   
   .ant-table-tbody > tr > td {
-    border-bottom: 1px solid rgba(255, 255, 255, 0.02) !important;
-    padding: 16px;
+    border-bottom: none !important; // 彻底移除分割线
+    padding: 16px 24px;
     color: $text-primary;
-    transition: background 0.3s;
+    transition: background 0.3s ease;
   }
   
+  // 极柔和的悬停效果，避免闪白
   .ant-table-tbody > tr:hover > td {
-    background: rgba(255, 255, 255, 0.03) !important;
+    background: rgba(255, 255, 255, 0.02) !important; 
+  }
+  
+  // 偶数行增加极淡的背景，形成斑马纹，替代分割线
+  .ant-table-tbody > tr:nth-child(even) > td {
+    background: rgba(255, 255, 255, 0.005);
   }
   
   // 移除所有垂直边框
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index 3fa009d..ffa4036 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -3564,6 +3564,11 @@ const canGrabTask = (task: TaskOrSubTask) => {
   const userDeptId = userInfo.deptId
   const userDeptType = userInfo.deptType // 'demand' 或 'receiving'
   
+  // 管理员拥有所有权限，可以直接抢单
+  if (userInfo.isAdmin === 1 || userInfo.isAdmin === true) {
+    return { canGrab: true, reason: '' }
+  }
+  
   // 检查1：没有部门不能抢单
   if (!userDeptId) {
     return { canGrab: false, reason: '您未分配部门，无法接单' }