.primary-nav {
    display: flex;
    height: 95px;
    align-items: center;
    max-width: 1400px;
   width: 1400px;
    margin: 0 auto;
}
.nav-righ {
    margin-left: 86px; 
}
.nav-head{margin-right: 78px;}
.Dropdown_d1 {
    width: 1400px;
    margin: 0 auto;
    position: relative;
}
.category{width: 421px;}
.category_jsys li {
  
    width: 209px;
}
.jsjs_category li{width: 280px;}
.columns_gywm .category {
    width: 421px;
}
.close-btn {
    
    right: 6px;
  
}

.category li {
  
    width: 226px;
}
.columns_fwzc li{   width: 326px;}
.rjcp_nav li {
  
    width: 320px;
}
.nav1 ul {
    width: 1400px;
    float: right;
    margin-top: 0px;
    color: #6e6e6e;
}
 .nav1 ul li {
    float: left;
    margin-right: 21px;
    margin-left: 9px;
    height: 48px;
    line-height: 22px;
}
.nav1_jsys ul li{ line-height: 48px;}
.fhsy {
   
    margin-top: 12px;
}
.components3{background:#f3f3f3;height: 3252px;}
.com3_rjcp li{    width: 100%; height: 567px; margin-top: 50px;}
.nav_top.on{position: fixed;top: 0;transition: transform .5s; z-index: 999;    background: #ffffff;}