.banner
{
    width: 100%;
    position: relative;
    overflow: hidden;
    background: #fff;
}
.banner .swiper-slide img
{
    max-width: 640px;
    display: block;
    border: 0;
    width: 100%;
}
.banner .swiper-pagination-bullet
{
    width: 10px;
    height: 10px;
    background: #3362a8;
    opacity: 1;
}
.banner .swiper-pagination-bullet-active
{
    background: #ffa801;
}