header{
    width: 100%;
    font-family:'Noto Sans KR','Malgun Gothic', '맑은 고딕', sans-serif;
    border-bottom: 1px solid #eee;
    background: #fff;
    height: 60px;
    position: fixed;
    z-index: 9000;
    top: 0;
    left: 0;
}
.header_container{
    padding: 0px 40px;
    display: flex;
    height: 60px;
    align-items: center;
    max-width: 1700px;
    margin: 0 auto;
    position: relative;
}
.nav_list_box{
    display: flex;
    align-items: center;
}
.nav_list{
    font-weight: 300;
    cursor: pointer;
    padding: 0px 10px;
    height: 100%;
}
.nav_list>a{
    padding: 10px;
    transition: 0.2s all;
}
.nav_list>a:hover{
    background: #f2f8ff;
    border-radius: 7px;
}
.nav_box{
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo{
    margin-right: 30px;
}

.util_menu{
    display: flex;
    align-items: center;
}
.util_menu>li{
    margin-right: 20px;
}
.certificate{
    background: #ffebeb;
    color: #e76363;
    font-weight: 400;
    transition: 0.2s all;
}
.certificate:hover{
    background: #ffdbdb;
}

@media only screen and (max-width: 700px) {
    .header_container {
        padding: 0 20px;
    }
}