lxm--看板视图默认卡片模式，支持无缝模式

src/crm-core/components/app-layout/app-layout.less

@@ -143,4 +143,29 @@ body {
         padding: 0px;
         overflow-x: auto;
     }
+}
+
+// 看板视图，卡片模式
+.crm-app-view.appportalview,.crm-app-view.appportalview,.crm-app-view.appportalview9{
+  >.crm-app-view-content-wrapper .view-content-wrapper{
+    background: #f5f7fa;
+  }
+  .dashboard .ivu-row:nth-child(2){
+    padding: 8px;
+    .porlet{
+      background: #fff;
+      border-radius: 2px;
+    }
+  }
+}
+// 看板视图，无缝模式
+.crm-app-view.appportalview.seamless-mode,.crm-app-view.appportalview.seamless-mode,.crm-app-view.appportalview9.seamless-mode{
+  >.crm-app-view-content-wrapper .view-content-wrapper{
+    background: transparent;
+  }
+  .dashboard .ivu-row:nth-child(2){
+    .porlet{
+      background: transparent;
+    }
+  }
 }
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