feat: update style / exampleSite files and compatible with Hugo 0.58

exampleSite/content/posts/test.md

@@ -30,6 +30,47 @@ Test all features in development[^link test].
 
 ## Test ECharts
 
+{{< echarts height="500px" >}}
+{
+    title : {
+        text: '某站点用户访问来源',
+        subtext: '纯属虚构',
+        x:'center'
+    },
+    tooltip : {
+        trigger: 'item',
+        formatter: "{a} <br/>{b} : {c} ({d}%)"
+    },
+    legend: {
+        orient: 'vertical',
+        left: 'left',
+        data: ['直接访问','邮件营销','联盟广告','视频广告','搜索引擎']
+    },
+    series : [
+        {
+            name: '访问来源',
+            type: 'pie',
+            radius : '55%',
+            center: ['50%', '60%'],
+            data:[
+                {value:335, name:'直接访问'},
+                {value:310, name:'邮件营销'},
+                {value:234, name:'联盟广告'},
+                {value:135, name:'视频广告'},
+                {value:1548, name:'搜索引擎'}
+            ],
+            itemStyle: {
+                emphasis: {
+                    shadowBlur: 10,
+                    shadowOffsetX: 0,
+                    shadowColor: 'rgba(0, 0, 0, 0.5)'
+                }
+            }
+        }
+    ]
+}
+{{< /echarts >}}
+
 ## Test Ruby
 
 人最重要的特点是会思考，建站初衷无非是保存思维的电子快照。