/* banner */
#banner { position: relative; width: 100%; height: 500px; }
#banner .swiper-wrapper .swiper-slide { width: 100%; height: 100%; }
#banner .swiper-wrapper .swiper-slide img {display: block;width: 100%;height: 500px;}
/*#banner .swiper-wrapper .swiper-slide img { display: block; width: 100%; height: 100%; }*/
.swiper-button-prev, .swiper-button-next { width: 50px; height: 130px; cursor: pointer; }
.swiper-button-prev { position: absolute; left: 0; top: 195px; background: rgba(255, 255, 255, 0.2) url(../images/banner_left.png) center center no-repeat; z-index: 666; }
.swiper-button-next { position: absolute; right: 0; top: 195px; background: rgba(255, 255, 255, 0.2) url(../images/banner_right.png) center center no-repeat; z-index: 666; }



@media (min-width: 1280px) {
    .swiper-button-prev { position: absolute; left: 30px;  z-index: 666; }
    .swiper-button-next { position: absolute; right: 30px;  z-index: 666; }
    .bigdata-title { margin-top: -100px; }
}