diff --git a/admin/dashboard/templates/index.html b/admin/dashboard/templates/index.html
index 1ffd65a..faa1f3c 100644
--- a/admin/dashboard/templates/index.html
+++ b/admin/dashboard/templates/index.html
@@ -192,9 +192,10 @@
                             <el-option :value="3" label="最近3天"></el-option>
                         </el-select>
                     </div>
-                    <canvas id="hourlyMessageTrendChart" width="800" height="150"></canvas>
                 </div>
-
+                <div class="chart-container" style="height: 300px; width: 100%;">
+                    <canvas id="hourlyMessageTrendChart"></canvas>
+                </div>
             </el-card>
         </el-col>
     </el-row>
@@ -692,16 +693,12 @@
     }
     
     .chart-container {
-        margin-bottom: 20px;
-        padding: 10px;
         background-color: #fff;
         border-radius: 4px;
-        box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
     }
     
     .chart-container h3 {
         margin-top: 0;
-        margin-bottom: 10px;
         font-size: 16px;
         color: #606266;
     }