.head-bar {
    position: absolute;
    top: 23px;
    right: 20px;
    display: none;
}
@media (max-width: 768px){
.head-bar {
    display: block;
}
}
.menu-btn,
.menu-btn span {
    display: inline-block;
    transition: all .4s;
    box-sizing: border-box;
}
.menu-btn {
    display: block;
    float: right;
    margin: 0 auto;
    position: relative;
    width: 40px;
    height: 30px;
}
.menu-btn span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: #fff;
}
.menu-btn span:nth-of-type(1) {
    top: 0;
}
.menu-btn span:nth-of-type(2) {
    top: 13px;
}
.menu-btn span:nth-of-type(3) {
    bottom: 0;
}


.sp-menu {
    display: none;
    margin-top:20px;
}
.sp-menu li {
    box-sizing: border-box;
    border-bottom: 1px solid #043f59;
}
.sp-menu li a {
    background: #fff;
    box-sizing: border-box;
    color: #3E3A39;
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    padding: 15px 10px;
    text-decoration: none;
    width: 100%;
}