.banner-swiper .swiper-button-next,
.banner-swiper .swiper-button-prev {
    color: #fff;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.banner-swiper .swiper-button-next:hover,
.banner-swiper .swiper-button-prev:hover {
    opacity: 1;
}

.banner-swiper .swiper-pagination-bullet {
    background: #fff;
    opacity: 0.7;
}

.banner-swiper .swiper-pagination-bullet-active {
    background: #fff;
    opacity: 1;
}

@media (max-width: 640px) {
    .banner-swiper .swiper-button-next,
    .banner-swiper .swiper-button-prev {
        display: none;
    }
}