.idol_universe{
    position:relative;
    padding-top:60px;
    padding-bottom:132px;
    box-sizing:border-box;
}

.idol_universe h1,
.idol_universe .wrapper{
    position:relative;
    z-index:10;
}

.idol_universe h1{
    text-align:center;
    margin-bottom:30px;
}

.idol_universe ul.idol_list{
    display:flex;
    width:680px;
    margin:0 auto;
    flex-wrap: wrap;
    justify-content: space-between;
}

.idol_universe ul.idol_list li{
    margin-top:19px;
}

.idol_universe ul.idol_list li:nth-child(-n+2){
    margin-top:0;
}

.idol_universe ul.idol_list li a span{
    color:#fff;
    font-size:18px;
    font-family:'mbcnew-light';
    letter-spacing: -0.03214em;
    line-height: 28px;
    margin-top:-23px;
    word-break:keep-all;
    text-align: center;
}

.idol_universe ul.idol_list li a{
    display:flex;
    flex-direction: column;
    justify-content:center;
    align-items:center;
}

.idol_universe ul.idol_list li a:hover span {
    text-decoration: underline;
    text-underline-offset: 22%;
    text-decoration-thickness: 7%;
}

.idol_universe ul.bg_list,
.idol_universe ul.bg_list li{
    position: absolute;
    top:0;
    left:0;
    right:0;
    bottom:0;
    margin:auto;
}

.idol_universe ul.bg_list{
    overflow:hidden;
    z-index:0;
}

.idol_universe ul.bg_list li img{
    width:100%;
    height:100%;
    object-fit: cover;
    object-position: 50%;
}

.idol_universe ul.bg_list li:nth-child(2){
    opacity: 0;
    animation: fade 8s infinite;
    animation-delay: 1s;
}

@keyframes fade {
    0%   { opacity: 0; }
    40%  { opacity: 1; }
    60%  { opacity: 1; }
    100% { opacity: 0; }
}