.thumb-slider .slick-slide {
  opacity: 0.5;
  cursor: pointer;
}
.thumb-slider .slick-current {
  opacity: 1;
}
.slick-prev,
.slick-next {
  width: 40px!important;
  height: 40px!important;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  z-index: 1;
  background-color:rgba(0,0,0,0.2)!important;
}
.slick-prev {
  background-image: url('https://file001.shop-pro.jp/PA01516/984/img/detail/arrowleft-icon.svg')!important;
  background-size:15px!important;
  background-repeat:no-repeat!important;
  background-position:center!important;
  left: -25px!important;
}
.slick-next {
  background-image: url('https://file001.shop-pro.jp/PA01516/984/img/detail/arrowright-icon.svg')!important;
  background-size:15px!important;
  background-repeat:no-repeat!important;
  background-position:center!important;
  right: -25px!important;
}
/* デフォルトのアイコンを消す */
.slick-prev::before,
.slick-next::before {
  display: none;
}