.header{
    background-color: #fff;
    width: 100%;
    height: 70px;
    left: 0;
    top: 0;
    z-index: 1000;
    position: absolute;
    transition: transform .4s;
}
.header .container{
    background-color: #fff;
    height: 70px;
    line-height: 70px;
}
.header.fixed{
    position: fixed;
    display: none;
}
.header .logo{
    float: left;
    height: 35px;
    margin: 17.5px 0;
    position: relative;
    z-index: 10;
}
.header.box-shadow,.dropdown-screen.box-shadow{
    box-shadow: rgba(0, 0, 0, 0.07) 0px 1px 2px;
}
.jy-navbar{
    float: right;
}
.jy-nav{
    position: relative;
    z-index: 10;
}
.jy-navbar .jy-nav{
    height: 70px;
}
.jy-navbar .item{
    float: left;
    padding: 0 32px;
    height: 70px;
    position: relative;
}
.jy-navbar .jy-nav>.item>a{
    display: block;
    height: 70px;
    line-height: 70px;
    font-size: 16px;
    text-decoration: none;
    position: relative;
    color: #333;
    font-weight: bold;
}
.jy-navbar .jy-nav>.item>a:before{
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 15px;
    height: 3px;
    width: 0;
    background-color: #1a45ea;
    transition: width .3s;
}
.jy-navbar .jy-nav>.item.active>a:before{
    width: 100%;
    color: #333;
}
.jy-navbar .jy-nav>.item>a:hover::before {
    width: 100%;
    color: #333;
}
.jy-navbar:hover .dropdown-screen {
    transform: translateY(0);
}

/*子菜单下拉*/
.nav-dropdown{
    position: absolute;
    min-width: 150px;
    z-index: 1;
    display: none;
    top: 69px;
    left: 50%;
    opacity: 0;
    margin-left: -75px;
    overflow: hidden;
    transition: all .15s;
    transform: translateY(-30%);
}
.nav-dropdown.show{
    display: block;
}
.nav-dropdown.down{
    transform: translateY(0);
    opacity: 1;
}

.nav-dropdown li{
    line-height: 2;
    text-align: center;
}
.nav-dropdown a{
    color: #666;
    display: block;
}
.nav-dropdown a:hover{
    background-color: #f3f3f3;
}
/*导航下拉幕布*/
.dropdown-screen{
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    height: 200px;
    z-index: 2;
    display: none;
    background-color: #fff;
    transition: all .15s;
    opacity: 0;
    transform: translateY(-30%);
}
.dropdown-screen.show{
    display: block;
}
.dropdown-screen.down{
    opacity: 1;
    transform: translateY(0);
}
/*    手机端布局*/
.phone-header{
    height: 60px;
    background-color: #fff;
    padding: 0 15px;
    position: relative;
    z-index: 1002;
}
.phone-menu{
    display: inline-block;
    width: 30px;
    padding: 5px;
    margin: 15px 0;
    float: right;
}
.phone-menu .item{
    margin-top: 5px!important;
    transition: transform .3s;
    padding: 0;
    border-bottom: solid 1px #8D8D8D;
}
.phone-header .logo {
    width: 125px;
    float: left;
    margin-top: 17px;
}
.phone-dropdown-screen{
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    height: 250px;
    z-index: 1001;
    padding: 15px;
    overflow: auto;
    display: none;
    background-color: #fff;
    box-shadow: 0 1px 2px #eee;
}
.phone-dropdown-screen ul>li{
    line-height: 40px;
}
.phone-dropdown-screen ul>li>a{
    display: block;
}
.phone-dropdown-screen ul>li:active{
    background-color: #eee;
}
.head-shade{
    background-color: rgba(0,0,0,.4);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
}

/*占位*/
.pc-header-perch{
    height: 70px;
}
.phone-header-perch {
    height: 50px;
}

@media (min-width: 768px) and (max-width: 1024px) {
    .jy-navbar .item{
        padding: 0 15px;
    }
}