@media screen and (max-width: 3000px) {
.leftslider-container {
    position: relative;
    width: 100%;
    aspect-ratio: 3000/1688;background:#2d2d2d;
    overflow: hidden;
}

.leftslider {
    position: relative;
    width: 100%;
    height: 100%;
}

.leftslide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    z-index: 1;
}

.leftslide.active {
    z-index: 2;
}

    .leftslider .leftslide .texter {
        position: absolute;
        writing-mode: vertical-rl;
        -webkit-writing-mode: vertical-rl;
        -ms-writing-mode: tb-rl;
        text-orientation: upright;
        -webkit-text-orientation: upright;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        white-space: nowrap;
        height: 80%;
        display: flex;
        align-items: center;
    }

    .left_img01 {
        background: url("../img/index01_LL.jpg") no-repeat;
        aspect-ratio: 3000/1688;
        background-size: 100%;
    }
    .left_img02 {
        background: url("../img/index02_LL.jpg") no-repeat;
        aspect-ratio: 3000/1688;
        background-size: 100%;
    }
    .left_img03 {
        background: url("../img/index03_LL.jpg") no-repeat;
        aspect-ratio: 3000/1688;
        background-size: 100%;
        background-color: rgba(0,0,0,0.5);
        background-blend-mode: overlay;
    }
    .left_img04 {
        background: url("../img/index04_LL.jpg") no-repeat;
        aspect-ratio: 3000/1688;
        background-size: 100%;
    }
    
}

@media screen and (max-width: 767px) {
.leftslider-container {
    position: relative;
    width: 100%;
    aspect-ratio: 800/1000;
    overflow: hidden;
}

.leftslider {
    position: relative;
    width: 100%;
    height: 100%;
}

.leftslide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    z-index: 1;
}

.leftslide.active {
    z-index: 2;
}

    .leftslider .leftslide .texter {
        position: absolute;
        writing-mode: vertical-rl;
        -webkit-writing-mode: vertical-rl;
        -ms-writing-mode: tb-rl;
        text-orientation: upright;
        -webkit-text-orientation: upright;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        white-space: nowrap;
        height: 80%;
        display: flex;
        align-items: center;
    }

    .left_img01 {
        background: url("../img/index01_s.jpg") no-repeat;
        aspect-ratio: 800/1000;
        background-size: 100%;
    }
    .left_img02 {
        background: url("../img/index02_s.jpg") no-repeat;
        aspect-ratio: 8000/1000;
        background-size: 100%;
    }
    .left_img03 {
        background: url("../img/index03_s.jpg") no-repeat;
        aspect-ratio: 800/1000;
        background-size: 100%;
        background-color: rgba(0,0,0,0.5);
        background-blend-mode: overlay;
    }
    .left_img04 {
        background: url("../img/index04_s.jpg") no-repeat;
        aspect-ratio: 800/1000;
        background-size: 100%;
    }
    
    
}