/* 画像を丸くする */
#store-kaden_event .event_col li img {
    border-radius: 10px;
}

/* カラム設定 */
#store-kaden_event .event_col {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    overflow: hidden;
}
#store-kaden_event .event_col li {
    position: relative;
}

/* ボタン */
#store-kaden_event #text_btn  {
    display: block;
    position: relative;
    margin: 10px auto;
    width: 60%;
}
#store-kaden_event #text_btn .open_btn {
    text-align: center;
    font-size: 23px;
    color: #fff;
    background-color: #263657;
    padding: 5px 0;
    border-radius: 5px;
}

/* 表示非表示 */
#store-kaden_event .event_col {
    height: 285px;
}
#store-kaden_event .event_col li:nth-child(n+5)::before {
    position: absolute;
    content: "" ;/* 疑似要素に必須 */
    background: linear-gradient(rgba(255,255,255,0) 0, #fff 25%, #fff 100%); /* 徐々に透明にする */
    display: block;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

#store-kaden_event .event_col.command_open  {
    height: auto;
}
#store-kaden_event .event_col.command_open li:nth-child(n+5)::before {
    display: none;
}
#store-kaden_event .open_btn {
    display: none;
}
#store-kaden_event .open_btn.show {
    display: block;
}


/*フェードイン*/
@keyframes fadein_anime{
    0% {
      opacity: 0;
    }

    100% {
      opacity: 1;
    }
}


/* プラスマイナスアイコン open*/
#store-kaden_event #text_btn .open_btn::before,
#store-kaden_event #text_btn .open_btn::after {
position: absolute;
top: 50%;
left: 30%;
display: inline-block;
content: "";
width: 18px;
height: 2px;
margin-top: 0px;
background-color: #fff;
}
#store-kaden_event #text_btn .open_btn::after {
transform: rotate(90deg);
transition: transform 0.5s;
}

/* プラスマイナスアイコン close*/
#store-kaden_event #text_btn .open_btn:nth-child(2)::before,
#store-kaden_event #text_btn .open_btn:nth-child(2)::after {
position: absolute;
top: 50%;
left: 30%;
display: inline-block;
content: "";
width: 18px;
height: 2px;
margin-top: 0px;
background-color: #fff;
}
#store-kaden_event #text_btn .open_btn:nth-child(2)::after {
transform: rotate(0deg);
transition: transform 0.5s;
}