.top-banner{width: 100%}.top-banner img{display: block;width: 100%}.gk-section{width: 100%;padding: 50px 0;background: url(../img/gk_section_bg1.png) no-repeat center center;background-size: auto 100%}.gk-section .gk-tit{display: block;width: 394px;margin: 0 auto}.gk-section .gk-info{margin-top: -40px}.gk-section .gk-info .img-wrap{display: block;width: 595px;height: 328px;margin-right: 40px}.gk-section .gk-info .img-wrap img{display: block;width: 100%;height: 100%}.gk-section .gk-info .info-main{display: block;width: 561px;font-size: 16px;color: #333333;line-height: 37px}.gk-section .gk-info .info-main span{color: #3B70BF}.gk-section .gk-nav{padding: 0 11px;box-sizing: border-box;margin-top: 50px}.gk-section .gk-nav .nav-item{display: block;float: left;width: 82px;text-align: center;color: #333;font-size: 20px;padding: 0 32px}.gk-section .gk-nav .nav-item img{display: block;width: 52px;margin: 0 auto 25px}.gk-other-section{width: 100%;background: url(../img/gk_section_bg2.png) no-repeat center center;background-size: auto 100%;padding-bottom: 68px}.gk-other-section .other-item{display: block;float: left;margin-right: 27px;width: 258px;height: 367px;position: relative;padding-bottom: 11px}.gk-other-section .other-item:last-child{margin-right: 0}.gk-other-section .other-item:nth-child(odd){margin-top: 134px}.gk-other-section .other-item:nth-child(even){margin-top: 67px}.gk-other-section .other-item .img{display: block;width: 100%;height: 367px}.gk-other-section .other-item .img-border{display: block;position: absolute;top: 11px;left: 7px;width: 243px;height: 345px}.gk-other-section .other-item .name{position: absolute;left: 0;bottom: 0;width: 100%}.gk-other-section .other-item .name span{display: block;width: 141px;background: #fff;text-align: center;margin: 0 auto;font-size: 22px;color: #235892;line-height: 39px}.gk-img-section{width: 100%;background: url(../img/gk_section_bg3.png) no-repeat center center;background-size: auto 100%;padding: 76px 0 93px}.gk-img-section .tit{display: block;width: 392px;margin: 0 auto}.gk-img-section .swiper-img-wrap{width: 80%;margin: 0 auto;position: relative}#certify{position: relative;width: 1123px;margin: -40px auto 0}#certify .swiper-container{padding-bottom: 60px}#certify  .swiper-slide{width: 641px;height: 347px;background: #fff}#certify  .swiper-slide img{width: 641px;height: 347px;display: block;opacity: .6}#certify  .swiper-slide.swiper-slide-active img{opacity: 1}.gk-img-section .swiper-img-wrap .swiper-button-prev,.gk-img-section .swiper-img-wrap .swiper-container-rtl .swiper-button-next{background-image: url(../img/arrow_prev.png);left: -70px}.gk-img-section .swiper-img-wrap .swiper-button-next,.gk-img-section .swiper-img-wrap .swiper-container-rtl .swiper-button-prev{background-image: url(../img/arrow_next.png);right: -70px}.gk-img-section .swiper-img-wrap .swiper-button-next,.gk-img-section .swiper-img-wrap .swiper-button-prev{width: 30px;height: 53px;background-size: 30px 53px}.gk-img-section .swiper-img-wrap .swiper-button-next,.gk-img-section .swiper-img-wrap .swiper-button-prev{top: 46%}