#tree {
	width: 290px;
	float: left;
}

/* --------------- 一级菜单 --------------- */
#tree .layui-tree-set>.layui-tree-entry>.layui-tree-main {
	width: 100%;
	height: 70px;
	line-height: 70px;
	font-size: 30px;
	color: #FFFFFF;
	text-align: center;
	background: #4c7fbc;
	border-bottom: none;
	font-weight: bold;
}

/* --------------- 二级菜单 --------------- */
#tree .layui-tree-pack>.layui-tree-set>.layui-tree-entry>.layui-tree-main {
	font-size: 24px;
	color: #82846f;
	background: #f3f3f3 url("../images/tb19.png") top right no-repeat;
	background-size: 20px;
	background-position: 250px center;
	height: 60px;
	line-height: 60px;
	border-bottom: 2px solid #ced8e2;
	box-shadow: 0 0 0 1px #ffffff, 0 0 0 1px #ced8e2;
	font-weight: normal;
}

/* 二级菜单展开状态 */
#tree .layui-tree-pack>.layui-tree-set.layui-tree-spread>.layui-tree-entry>.layui-tree-main {
	font-size: 24px;
	color: #000000;
	background: url("../images/tb20.png") top right no-repeat;
	background-size: 20px;
	background-position: 250px center;
	height: 60px;
	line-height: 60px;
	border-bottom: none;
	font-weight: normal;
}

/* --------------- 三级菜单 --------------- */
#tree .layui-tree-pack .layui-tree-pack>.layui-tree-set>.layui-tree-entry>.layui-tree-main {
	font-size: 20px;
	color: #666666;
	background: #fbfbfb url("../images/tb19.png") no-repeat;
	background-size: 20px;
	background-position: 250px center;
	height: 48px;
	line-height: 48px;
	border-bottom: 2px solid #f1f1f1;
	font-weight: normal;
}

/* 三级菜单展开状态 */
#tree .layui-tree-pack .layui-tree-pack>.layui-tree-set.layui-tree-spread>.layui-tree-entry>.layui-tree-main {
	font-size: 20px;
	color: #000000;
	background: url("../images/tb20.png") top right no-repeat;
	background-size: 20px;
	background-position: 250px center;
	height: 48px;
	line-height: 48px;
	border-bottom: none;
	font-weight: normal;
}

/* --------------- 四级菜单 --------------- */
#tree .layui-tree-pack .layui-tree-pack .layui-tree-pack>.layui-tree-set>.layui-tree-entry>.layui-tree-main {
	font-size: 16px;
	color: #666666;
	background: rgba(246, 246, 246, 0.2) url("../images/tb21.png") no-repeat;
	background-size: 15px;
	background-position: 250px center;
	height: auto;
	line-height: 36px;
	border-bottom: 2px solid #f9f9f9;
	font-weight: normal;
}

/* 强制隐藏 layui 默认箭头 */
#tree .layui-tree-iconArrow {
    display: none !important;
}

/* 初始隐藏三级和四级菜单 */
#tree .layui-tree-pack .layui-tree-pack,
#tree .layui-tree-pack .layui-tree-pack .layui-tree-pack {
    display: none;
}