.pc {
    display: block;
}
.sp {
    display: none;
}

.movie-box {
    position: relative;
    padding-bottom: 52%;
}

.movie-box iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.mov-sec {
    padding: 0 0 50px 0;
}
@media (max-width: 479px)     {
    .pc {
        display: none;
    }
    .sp {
        display: block;
    }
    
    /* .header-access ul {
        display: flex;
        justify-content: space-between;
    }

    .header-access ul li {
        width: 48%;
    }

    .header-access ul li img {
        width: 100%;
    } */
}