.todagumi-badminton-banner{
    display:block;
    overflow:hidden;
    border-radius:12px;
    position:relative;

    box-shadow:
        0 4px 12px rgba(0,0,0,.15);

    transition:
        transform .25s ease,
        box-shadow .25s ease;
}

.todagumi-badminton-banner img{
    display:block;
    width:100%;
    height:auto;

    transition:
        transform .45s ease,
        filter .45s ease;
}

/* 紫の発光 */
.todagumi-badminton-banner::after{
    content:"";

    position:absolute;
    inset:0;

    background:
        linear-gradient(
            90deg,
            rgba(130,60,255,0) 0%,
            rgba(130,60,255,.15) 50%,
            rgba(130,60,255,0) 100%
        );

    opacity:0;
    transition:opacity .3s ease;

    pointer-events:none;
}

/* Hover */
.todagumi-badminton-banner:hover{
    transform:translateY(-3px);

    box-shadow:
        0 10px 24px rgba(0,0,0,.25),
        0 0 24px rgba(130,60,255,.35);
}

.todagumi-badminton-banner:hover img{
    transform:scale(1.03);
    filter:brightness(1.08);
}

.todagumi-badminton-banner:hover::after{
    opacity:1;
}