header {
    position: absolute;
    z-index: 1000000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 15px;
    overflow: hidden;
    box-sizing: border-box;
}
header.fix {
    position: fixed;
    background: #fff;
}



.header_imgBx {
    z-index: 1000000;
    width: 180px;
    height: 50px;
}
.header_imgBx img {
    width: 100%;
}



.header_hm {
    display: none;
}


.header_nav {
    position: relative;
}
.header_nav ul {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}
.header_nav ul li {
    list-style: none;
}
.header_nav ul li a {
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}
header.fix .header_nav ul li a {
    color: #6e3201;
}
.header_nav ul li a ion-icon {
    font-size: 3rem;
}





@media screen and (max-width: 900px) {
    .header_hm {
        z-index: 1000000;
        display: flex;
        justify-content: center;
        align-items: center;
        width: 50px;
        height: 50px;

        transition: .5s;
        cursor: pointer;
    }
    .header_hm span {
        position: relative;
        width: 30px;
        height: 2px;

        background: #fff;

        transition: .5s;
    }
    header.fix .header_hm span {
        background: #000;
    }
    header.fix .header_hm.active span {
        background: #fff;
    }
    .header_hm.active span {
        background: #fff;
    }
    .header_hm span::before {
        content: '';
        position: absolute;
        top: -8px;
        width: 100%;
        height: 100%;

        background: #fff;

        transition: .5s;
    }
    header.fix .header_hm span::before {
        background: #000;
    }
    .header_hm.active span::before {
        top: 0;

        background: #000;

        transform: rotate(45deg);
    }
    .header_hm span::after {
        content: '';
        position: absolute;
        top: 8px;
        width: 100%;
        height: 100%;

        background: #fff;

        transition: .5s;
    }
    header.fix .header_hm span::after {
        background: #000;
    }
    .header_hm.active span::after {
        top: 0;

        background: #000;

        transform: rotate(-45deg);
    }


    
    .header_nav ul {
        position: fixed;
        z-index: -1;
        top: 0;
        left: 0;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        gap: 20px;
        width: 100%;
        height: 100%;

        background: #fff;

        transition: .5s;
        pointer-events: none;
        opacity: 0;
    }
    .header_nav.active ul {
        z-index: 10000;

        pointer-events: all;
        opacity: 1;
    } 
    .header_nav ul li a {
        color: #6e3201;
        font-weight: 700;
        text-decoration: none;
    }
    .header_nav ul li a ion-icon {
        font-size: 4rem;
    }
}