.banner_content{
    height: 700px;
    position: relative;
}

.banner_content>a{
    display: inline-block;
    width: 336px;
    height: 108px;
    line-height: 95px;
    background: url(../images/button_bg.png) no-repeat center;
    font-family: Microsoft YaHei;
    font-weight: bold;
    font-size: 40px;
    color: #FDFEFF;
    letter-spacing: 5px;
    text-align: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 40px;
}

.banner_content ul{
    width: 90%;
    height: 700px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
}

.banner_content ul li{
    width: 25%;
    position: relative;
}

.banner_content ul li img{
    width: 100%;
}

.banner_content ul li a{
    display: inline-block;
    width: 248px;
    height: 85px;
    line-height: 72px;
    background: url(../images/button_bg2.png) no-repeat center;
    background-size: 100%;
    font-family: Microsoft YaHei;
    font-weight: bold;
    font-size: 28px;
    color: #FDFEFF;
    letter-spacing: 5px;
    text-align: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 15px;
}

.swiper-wrapper>div:nth-child(1) .banner_content{
    background: url(../images/banner1_pc.png) no-repeat center;
}

.swiper-wrapper>div:nth-child(4) .banner_content{
    background: url(../images/banner2_pc.png) no-repeat center;
}

.swiper-wrapper>div:nth-child(3) .banner_content{
    background: url(../images/banner3_pc.png) no-repeat center;
}

.swiper-wrapper>div:nth-child(5) .banner_content{
    background: url(../images/banner5_pc.png) no-repeat center;
}

.swiper-wrapper>div:nth-child(6) .banner_content{
    background: url(../images/banner6_pc.png) no-repeat center;
}

.swiper-wrapper>div:nth-child(7) .banner_content{
    background: url(../images/banner7_pc.png) no-repeat center;
}

.swiper-wrapper>div:nth-child(8) .banner_content{
    background: url(../images/banner8_pc.png) no-repeat center;
}


@media screen and (max-width: 768px) {
    .banner_content{
        height: 340px;
    }

    .banner_content>a{
        width: 134px;
        height: 58px;
        line-height: 50px;
        font-size: 1rem;
        letter-spacing: 5px;
        bottom: 3rem;
        background-size: 100% auto;
    }

    .banner_content ul{
        width: 90%;
        height: 340px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        margin: 0 auto;
    }

    .banner_content ul li a{
        width: 4.6rem;
        height: 3rem;
        line-height: 2.9rem;
        font-size: .3rem;
        letter-spacing: 1px;
        bottom: -.6rem;
    }

    .swiper-button-prev{
        left: -6px !important;
    }

    .swiper-button-next{
        right: -6px !important;
    }

    .swiper-button-next:after, .swiper-button-prev:after{
        font-size: 25px !important;
    }

    .swiper-wrapper>div:nth-child(1) .banner_content{
        background: url(../images/banner1_m.jpg) no-repeat center;
        background-size: 85% auto;
    }
    
    .swiper-wrapper>div:nth-child(4) .banner_content{
        background: url(../images/banner2_m.jpg) no-repeat center;
        background-size: 85% auto;
    }
    
    .swiper-wrapper>div:nth-child(3) .banner_content{
        background: url(../images/banner3_m.jpg) no-repeat center;
        background-size: 85% auto;
    }
    
    .swiper-wrapper>div:nth-child(5) .banner_content{
        background: url(../images/banner5_m.jpg) no-repeat center;
        background-size: 85% auto;
    }
    
    .swiper-wrapper>div:nth-child(6) .banner_content{
        background: url(../images/banner6_m.jpg) no-repeat center;
        background-size: 85% auto;
    }
    
    .swiper-wrapper>div:nth-child(7) .banner_content{
        background: url(../images/banner7_m.jpg) no-repeat center;
        background-size: 85% auto;
    }
    
    .swiper-wrapper>div:nth-child(8) .banner_content{
        background: url(../images/banner8_m.jpg) no-repeat center;
        background-size: 85% auto;
    }
}