html,body,div,ul,li,h1,h2,h3,h4,h5,h6,p,dl,dt,dd,ol,form,input,textarea,th,td,select{margin:0;padding:0}
*{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
html,body{min-height:100%}
body{font-family:Helvetica,Pingfang SC,Microsoft YaHei,STHeiti,Verdana,Arial,Tahoma,sans-serif;font-size:14px;color:#333;background:#fff;position:relative}
h1,h2,h3,h4,h5,h6{font-weight:normal}
ul,ol{list-style:none}
img{border:none;vertical-align:middle}
a{color:#666;text-decoration:none}
a:visited{color:#666;text-decoration:none}
a:hover{color:#666;text-decoration:none}
a:active{color:#666;text-decoration:none}
.clear{ clear:both; }
table{border-collapse:collapse;table-layout:fixed}
input,textarea{outline:none;border:none}
textarea{resize:none;overflow:auto}
.fl{ float: left;}
.fr{ float: right;}
.clear{ clear: both;}
.clearfix{zoom:1}
.clearfix:after{content:".";width:0;height:0;visibility:hidden;display:block;clear:both;overflow:hidden}
/* 本案例CSS*/
.dh_yc{
    width: 100%;
    height: auto;
    position: absolute;
    /*position: relative;*/
    z-index: 9999;
    /*border-bottom:2px solid #119f0f ;*/
    min-height: 60px;
    box-sizing: border-box;
    background: #1e50ae;
}
.dh_yc:hover {
    width: 100%;
    background: #1e50ae;
    transition: width 1.5s ease;
}

.wrap{width: 1200px;margin: 0 auto;}
#nav {
    display: flex;display: flex;flex-direction: row;justify-content: center;align-items: center;flex-wrap: wrap;}

ul.nav {display: inline-flex;flex: 1;padding-left:50px;}
.nav li a{ color: #fff;}
li.nav-item {flex: 1;}
li.nav-item>a{display: block;text-align: center;line-height: 60px;font-size: 16px;position: relative;}
li.nav-item>a::before{
    display: none; content: ''; position: absolute; left: 50%; bottom: 0;
    transform: translateX(-50%); border-width: 0 10px 10px; border-style: solid;
    border-color: transparent transparent #FFF; position: absolute;
}
li.nav-item:hover>a ,li.nav-item.active>a{color: #FFF;}
li.nav-item:hover>a::before,li.nav-item.active>a::before{display: block;}
/* 二级菜单 */
.subMenu{
    display: none;position: absolute;
    top: 60px;left: 0;width: 100%;
    height: auto;background-color:rgba(255,255,255,0.85); padding: 45px 0;
}
.subMenu>ul{display: flex;flex-wrap: wrap;flex-direction: row;justify-content: center;align-items: center;}
.subMenu>ul>li>a{display:block;padding:0 18px;text-align: center;line-height: 50px;color: #fff;}
.subMenu>ul>li>a:hover{color:red}

/**自定义 二级分类下拉 **/
.zlm{ width: 400px; height: auto; float: left;}
.zlm li{ width: 220px; height: 40px; line-height: 40px; text-align: center;}
.zlm li a{ color: #303030; font-size: 16px;}
.zlm li:hover{ border-bottom: 1px solid #878787;}
.zlm li a:hover{ color:red }
.lmms_zs{ width: 800px; height: auto; float: right;}
.lm_img{ width: 300px; height: auto; text-align: center;}
.lm_img img{ width: 300px; height: 200px;}
.lmnr_xq{ width: 450px; color: #303030;line-height: 25px;}