.mv {
    position: relative;
    display: block;
    overflow: clip;
    color: #fff;
}

.mv_image {
    display: block;
    width: 100%;
    object-fit: cover;
}

.mv_head {
    position: absolute;
}
.mv_head__caption {
    font-size: 8rem;
    line-height: 1.25;
}
.mv_head__label {
    font-size: 2.4rem;
    margin-top: 42px;
}

.mv_unit {
    display: block;
    position: absolute;
    bottom: 0;
    right: 0;
    max-width: 735px;
}
.mv_txt {
    position: absolute;
    top: 50%;
    left: 0;
    translate: 0 -50%;
    font-size: 1.5rem;
    writing-mode: vertical-lr;
    padding: 0 16px;
    box-sizing: border-box;
}

@media screen and (max-width: 1200px) {
    .mv_unit {
        max-width: 465px;
    }

    .mv_head__caption {
        font-size: 3.8rem;
    }
    
    .mv_head__label {
        font-size: 1.5rem;
        margin-top: 20px;
    }
}

@media screen and (min-width: 769px){
    .mv {
        margin-bottom: 85px;
        max-height: 800px;
    }
    .mv_head {
        bottom: calc((103 / 800) * 100%);
        left: 168px;
    }
    .mv_image {
        height: 800px;
    }
}
@media screen and (max-width: 768px){
    .mv {
        margin-bottom: 36px;
        max-height: 600px;
    }

    .mv_head {
        top: 188px;
        left: 20px;
    }
    .mv_image {
        height: 600px;
    }

    .mv_txt {
        display: none;
    }
}