*{ margin:0px; padding:0px;}
body 
{
    line-height:1.5;
    font-family:微软雅黑;
}
a{ text-decoration:none;}
ul,li{ list-style:none; }

.m900{ max-width:900px; margin:0 auto; }
.over{ overflow:hidden; }
.swiper-container { width: 100%;margin-left: auto;margin-right: auto;}
.swiper-slide {background-size: cover;background-position: center;}
.gallery-top {width: 100%;padding-bottom: 30px;}
.gallery-top img{width: 100%;}
.gallery-thumbs {box-sizing: border-box;margin-top: 10px;margin-bottom: 10px;margin-left: 60px;margin-right: 60px;}
.gallery-thumbs .swiper-slide {height: 100%;opacity: 0.4;}
.gallery-thumbs .swiper-slide-active {opacity: 1;}
.swiper_bg{background: #eeeeee;padding: 30px;margin-top: 60px;margin-bottom: 30px;}
.gallery-thumbs img{width: 100%;}
.swiper-pagination{bottom: 0px;text-align: left;}
.gallery-top .swiper-button-next,
.gallery-top .swiper-button-prev{position: absolute;top:initial;bottom: -9%;}
.swiper_bg .overflow{overflow: hidden;}
.swiper-container{overflow: visible;}
.swiper-slide:hover{cursor:pointer}
@media only screen and (max-width:414px ) {
.gallery-thumbs{display: none;}
.swiper_bg{background:#fff;}
.exhibition_text{background:#fff;} 
.gallery-top .swiper-button-prev,.gallery-top .swiper-button-next{bottom:initial;top: 50%;}
.swiper_bg{padding: 10px 15px;}
}