.product-introduction-wrap {padding: 75px 0;}
.product-introduction-wrap .product-introduction-swiper {overflow: hidden;}
.product-introduction-wrap .product-introduction-swiper .swiper-slide img {width: 100%;}
.product-introduction-wrap .product-introduction-left {padding: 0 40px;}
.product-introduction-menu {position: relative;}
.product-introduction-menu {margin-top: 20px;padding: 0 30px;}
.product-introduction-menu .product-menu-swiper {overflow: hidden;}
.product-introduction-menu .product-menu-swiper .swiper-wrapper img {width: 100%;}
.product-introduction-menu .product-menu-swiper .swiper-slide {border: 2px solid rgba(0,0,0,0);}
.product-introduction-menu .product-menu-swiper .swiper-slide-thumb-active {border: 2px solid #d12121;}
.product-introduction-menu .product-menu-swiper-button i {font-size: 30px;position: absolute;top: 50%;transform: translateY(-50%);cursor: pointer;}
.product-introduction-menu .product-menu-swiper-button i:hover {color:#d12121;transition: all 0.6s;}
.product-introduction-menu .product-menu-swiper-button .left {left: -5px;}
.product-introduction-menu .product-menu-swiper-button .right {right: -5px;}


@media (max-width:786px) {
    .product-introduction-wrap .product-introduction-left {padding: 0;}
    .product-introduction-wrap {padding: 10px;}
}