#intro { position: relative; width:100%; height:400px; background:#fff; z-index:1; }
.swiper-slide { background-size: cover; background-position: center center; }
.swiper-slide img { display:none; }

.swiper-pagination-bullet { width:11px; height:11px; background:rgba(255,255,255,.3); border-radius:0; opacity:1; }
.swiper-pagination-bullet-active { background:#fff; }