.box_case .swiper-container {padding: 3vw 0;}
.box_case .swiper-slide:not([class~="no-slide"]){width: 34vw;height: 19.5vw;background: #fff;box-shadow: 0 8px 30px #ddd;position: relative; }
.box_case .swiper-slide img{display:block;opacity: 0.6;width: 100%;height: 100%;object-fit:cover;}
.box_case .swiper-slide.swiper-slide-active img{opacity: 1;}
.box_case .swiper-slide h4 {line-height: 1.5;color: #fff;font-size: 16px;position: absolute;bottom: 0;left: 0;width: 100%;text-align: left;box-sizing:border-box;
background: rgba(0,0,0,0.6);padding: 1vw 1.5vw;display: none;}
.box_case .swiper-slide.swiper-slide-active h4{display: block;}
.box_case .swiper-button-prev {left: 14.5%;width: 30px;height: 30px;border-top: 2px solid #fff;background: none;
    border-right: 2px solid #fff;transform: rotate(-135deg);bottom: 14.5vw;top: auto;}
.box_case .swiper-button-next {right: 14.5%;width: 30px;height: 30px;border-top: 2px solid #fff;background: none;
    border-right: 2px solid #fff;transform: rotate(45deg);bottom: 14.5vw;top: auto;}