优化关系网样式

@@ -4,7 +4,7 @@
       <div class="title">{{ detailInfoLabel }}</div>
       <div class="row" v-for="item in Object.keys(detailInfo)">
         <span>{{ item + '：' }}</span>
-        <span>{{ detailInfo[item] }}</span>
+        <span>{{ detailInfo[item] == null ? '-' :  detailInfo[item] }}</span>
       </div>
     </div>
   </div>
@@ -37,6 +37,10 @@ const emits = defineEmits([
 
 const { proxy } = getCurrentInstance() as any;
 
+const maxChineseCount = ref(14);
+
+const maxEnglishCount = ref(26);
+
 const detailLoading = ref(false);
 
 const detailInfo: any = ref({});
@@ -116,9 +120,9 @@ const detectLanguage = (text) => {
 
 const handleLabelLength = (label: string) => {
   if (detectLanguage(label) == 'English') {
-    return label?.length > 30 ? label.slice(0, 30) + '...' : label;
+    return label?.length > maxEnglishCount.value ? label.slice(0,  maxEnglishCount.value) + '...' : label;
   }
-  return label?.length > 16 ? label.slice(0, 16) + '...' : label;
+  return label?.length > maxChineseCount.value ? label.slice(0, maxChineseCount.value) + '...' : label;
 };
 
 insertCss(`
@@ -161,9 +165,9 @@ const initGraph = () => {
       const name = item._cfg.model?.label;
       if (currentAnchor == 'text-shape') {
         if (detectLanguage(name) == 'English') {
-          return name?.length > 30;
+          return name?.length > maxEnglishCount.value;
         }
-        return name?.length > 16;
+        return name?.length > maxChineseCount.value;
       }
       return false;
     },
@@ -300,8 +304,9 @@ const initGraph = () => {
       labelCfg: {
         offset: 10,
         style: {
-          fontSize: 16,
+          fontSize: 13,
           fill: '#212121',
+          fontWeight: 500
         },
         position: !node.isField ? 'left' : 'right', //只有字段是最后一层级，不需要展开
       },