style: 保密总览车辆图样式修改

src/views/security-confidentiality/overview/charts/VehicleChart.vue

@@ -54,7 +54,7 @@
       grid: {
         left: '5%',
         right: '5%',
-        top: '20px',
+        top: '35px',
         bottom: '5%',
         containLabel: true,
       },
@@ -74,6 +74,7 @@
       ],
       yAxis: [
         {
+          name: '近7天车流趋势',
           type: 'value',
           splitLine: {
             lineStyle: {
@@ -87,6 +88,10 @@
             fontFamily: 'HelveticaNeue',
             fontSize: 12,
           },
+          nameTextStyle: {
+            verticalAlign: 'bottom',
+            padding: [0, 0, 5, 30],
+          },
         },
       ],
       series: [