去除内层

admin/dashboard/templates/index.html

@@ -179,7 +179,6 @@
     <!-- 添加一个新行用于显示按小时聊天趋势图 -->
     <el-row :gutter="20" style="margin-top: 20px;">
         <el-col :span="24">
-            <el-card shadow="hover" v-loading="hourlyMessageTrendLoading">
             <div slot="header" style="display: flex; justify-content: space-between; align-items: center;">
                 <h3>按小时聊天趋势</h3>
                 <div style="display: flex; align-items: center;">
@@ -196,7 +195,6 @@
             <div class="chart-container" style="height: 300px; ">
                 <canvas id="hourlyMessageTrendChart" width="800" height="150"></canvas>
             </div>
-            </el-card>
         </el-col>
     </el-row>
 </div>