@charset "utf-8";

body {
    margin: 0px;
    padding: 0px;
    --fss--: 20px;
    --showcolor--: rgb(2 110 175);
    --botnavcolor--: rgb(184 0 0);
}

a {
    text-decoration: none;
}

ul {
    list-style: none;
    margin: 0px;
    padding: 0px;
}

p {
    margin: 0px;
}

.width {
    width: 1200px;
    margin: 0 auto;
}

.both {
    clear: both;
}

a {
    color: #000;
    transition: 0.5s;
}

#box {
    width: 100%;
    position: relative;
    overflow: hidden;
    height: 500px;
}

#box img {
    transition: 0.3s;
    position: absolute;
    top: 0px;
    left: 0px;
    height: 100%;
    width: 100%;
    object-fit: cover;
}

.arrow {
    width: 100%;
}

.arrow a {
    position: absolute;
    top: 45%;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    color: #333;
    font-size: 24px;
    padding: 10px 15px;
    opacity: 0;
}

#box:hover .arrow a {
    opacity: 1;
}

.fr {
    float: right;
}

.fl {
    float: left;
}

.ib {
    display: inline-block;
}

.flex {
    display: flex;
    justify-content: space-evenly;
}

.pd {
    padding: 40px 0;
}





#foot_nav {
    display: none;
}


@media screen and (max-width: 980px) {
    * {
        -webkit-text-size-adjust: none;
    }

    #box {
        height: 300px;
    }


    .width {
        width: 98%;
    }







    #foot_nav {
        display: block;
        position: fixed;
        bottom: 0px;
        width: 100%;
        left: 0px;
    }

    #foot_nav li {
        list-style: none;
    }

    #foot_nav li a {
        width: calc(100% / 4);
        text-align: center;
        height: 50px;
        line-height: 50px;
        background: #3cb371;
        color: #fff;
        float: left;
    }

}