.wrapper {width: 100%; background-color: #3475ad14;min-width: 1700px; overflow: hidden;}
.wrapper #header { width: 98%; min-width: 1270px;height: 70px;background-color: #fff;transition: .3s;overflow: hidden;padding-right: 2%;}
.wrapper #header .imgLogo {min-width: 220px; margin-left: 60px;float: left;margin-top: -6px;}
.wrapper #header .imgLogo a {width: 100%;display: inline-block;margin-top: 15px;}
.wrapper #header .imgLogo a img{width: 100%;}
.wrapper .ul_nav { float: right;line-height: 70px; max-width: 1200px;}
.wrapper .ul_nav ul {display: flex; }
.wrapper .ul_nav ul li{margin-left: 30px;font-size: 18px;font-family: Arial, Helvetica, sans-serif;color: rgb(51, 51, 51);}
.wrapper .contact {cursor: pointer; margin-top: 2px;font-size: 14px;font-family: Arial, Helvetica, sans-serif;color: rgb(85, 85, 85);}

.wrapper .left_menu {display: flex;float: right;line-height: 70px;font-size: 14px;}
.wrapper .left_menu .ctrls_btns {margin-left: 20px;display: flex;border: 1px solid #000;border-radius: 5px;overflow: hidden;height: 33px;margin-top: 20px;}
.wrapper .left_menu .ctrls_btns span {display: inline-block;width: 50px;height: 33px;text-align: center;line-height: 33px;cursor: pointer;}
.wrapper .left_menu .ctrls_btns .login {background: #fff;color: rgb(112, 80, 80);}
.wrapper .left_menu .ctrls_btns .register {background: #000;color: #fff;}
.wrapper .fixed {background: #3475AD !important; position: fixed;top: 0;z-index: 5555; animation: navTop .5s ease-in-out;}
@keyframes navTop {
    from {
        top: -70px;
    }
    to {
        top: 0;
    }
}
.position{width: 100%;height: 70px;}
.hide{display: none}
.wrapper .left_menu .userInfo {margin-left: 20px;display: flex;border-radius: 5px;overflow: hidden;margin-top: 2px;cursor: pointer;}
.wrapper .ul_nav ul li a::after{
    content: '';
    display: block;
    width: 0px;
    font-size: 0;
    height: 1px;
    background: #fff;
    transition: all 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
    margin-top: -15px;
}
.wrapper .ul_nav ul li a.whiteBack::after {
    background: #fff !important;
}
.wrapper .username.whiteBack::after {
    background: #fff !important;
}
.wrapper .tuichu.whiteBack::after {
    background: #fff !important;
}
.wrapper .ul_nav ul li a.active::after{
    content: '';
    display: block;
    width: 40%;
    height: 1px;
    background: #000;
    transition: all 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
    margin-top: -15px;
}
.wrapper .ul_nav ul li a.active::after{
    content: '';
    display: block;
    width: 30%;
    height: 1px;
    background: #000;
    transition: all 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
    margin-top: -15px;
}
.wrapper .ul_nav ul li:hover a::after{
    content: '';
    display: block;
    width: 100%;
    height: 1px;
    background: #000;
    transition: all 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
    margin-top: -15px;
}
.wrapper .username::after {
    content: '';
    display: block;
    width: 0;
    height: 1px;
    background: #000;
    transition: all 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
    margin-top: -15px;
}
.wrapper .username:hover::after {
    width: 100%;
}
.wrapper .tuichu::after {
    content: '';
    display: block;
    width: 0;
    height: 1px;
    background: #000;
    transition: all 0.6s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
    margin-top: -15px;
}
.wrapper .tuichu:hover::after {
    width: 100%;
}