.sticky {
    position: sticky;
    top: 0%;
    left: 0%;
    max-width: 1920px;
    margin: 0 auto;
    z-index: 999;
    /* box-shadow: 0px 2px 3px #818181; */
}

.nav_logo {
    width: 225px;
}

.nav {
    max-width: 1920px;
    width: 100%;
    height: 60px;
    line-height: 11px;
    /* position: sticky;
    top: 0%;
    left: 0%; */
    background: #ba0000;
    z-index: 999;
    /* box-shadow: 2px 2px 3px #818181; */
    margin: 0 auto;
}

.nav_bar {
    margin: 0 auto;
    max-width: 1000px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2%;
    position: relative;
}

.nav_list {
    color: #ffffff;
    text-align: center;
    z-index: 9;
    font-size: 24px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    flex: 1;
}

.nav_list .nav_link {
    margin: 0 10px;
    color: #ffffff;
    font-weight: 700;
    text-decoration: none;
}

.nav_list .nav_link:last-child {
    color: #fcff01;
}

.nav_list .nav_link:last-child:hover {
    color: #ffffff;
}

.nav_list .nav_link:hover {
    transition: all .2s;
    color: #fcff01;
}

@media (max-width: 768px) {
    .nav_logo {
        width: 200px;
        position: absolute;
        top: 50%;
        transform: translate(-50%, -50%);
        left: 50%;
    }

    .nav_bar {
        height: 60px;
    }

    .nav_bar .nav_icon_box {
        position: absolute;
        top: 50%;
        right: 5%;
        transform: translateY(-50%);
        width: 50px;
        height: 50px;
        border-radius: 50%;
        box-sizing: border-box;
        cursor: pointer;
        z-index: 99;
    }

    .nav_bar .nav_icon_box .nav_icon {
        position: absolute;
        width: 60%;
        height: 50%;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }

    .nav_bar .nav_icon span:nth-child(1) {
        position: absolute;
        top: 0%;
        left: 0%;
        width: 100%;
        height: 15%;
        color: #fff;
        background: #ffffff;
        border-radius: 20px;
        transform-origin: left center;
        transition: all 0.2s;
    }

    .nav_bar .nav_icon span:nth-child(2) {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        left: 0%;
        width: 100%;
        height: 15%;
        color: #fff;
        background: #ffffff;
        border-radius: 20px;
        transition: all 0.2s;
    }

    .nav_bar .nav_icon span:nth-child(3) {
        position: absolute;
        bottom: 0%;
        left: 0%;
        width: 100%;
        height: 15%;
        color: #fff;
        background: #ffffff;
        border-radius: 20px;
        transform-origin: left center;
        transition: all 0.2s;
    }

    .nav_icon.open span:nth-child(1) {
        left: 15%;
        transform: rotate(45deg);
    }

    .nav_icon.open span:nth-child(2) {
        opacity: 0;
    }

    .nav_icon.open span:nth-child(3) {
        left: 15%;
        transform: rotate(-45deg);
    }

    .nav_list {
        width: 100%;
        height: 399px;
        position: absolute;
        top: 100%;
        left: 0%;
        color: #fff;
        background: #bb2727;
        text-align: center;
        max-height: 0;
        transition: max-height 0.3s;
        overflow: hidden;
        z-index: 9;
        font-size: 24px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
    }

    .nav_list .nav_link {
        width: 100%;
        height: 50px;
        line-height: 50px;
        border-bottom: 1px dashed rgb(226, 215, 16);
    }

    .nav_list .nav_link:last-child {
        border-bottom: none;
    }
}

@media (max-width: 576px) {
    .nav_logo {
        /* width: 175px; */
    }

    .nav_bar .nav_icon_box {
        width: 45px;
        height: 45px;
    }

    .nav_list .nav_link {
        height: 45px;
        line-height: 0px;
    }
}