.banner_background {
    position: fixed;
    top: 0;
    right: 0;
    width: calc(90vw - 3%);
    height: 641px;
    padding-top: 88px;
}

.banner_background img {
    width: 100%;
    height: 100%;
}

.banner {
    width: 100%;
    height: 641px;
    overflow: hidden;
}

.banner .text{
    width: 90%;
    margin: 455px auto 0;
}

.banner .text span{
    font-size: 34px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #2F2F2F;
    margin-bottom: 27px;
}

.banner .text p{
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #636363;
}

.banner img {
    width: 100%;
    height: 100%;
}

.section{
    width: 100%;
    background: #fff;
    overflow: hidden;
}
.section .warp{
    width: 90%;
    margin: 77px auto 0;
}
.section .warp .classify{
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #2D2D2D;
    margin-bottom: 37px;
}
.section .warp .select{
    width: 670px;
    display: flex;
    flex-wrap: wrap;
}
.section .warp .select .item{
    padding: 14px;
    border: 1px solid #E8EBF0;
    background-color: #F9F9F9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #363636;
    cursor: pointer;
    margin-right: 17px;
    transition: 0.4s;
    margin-bottom: 17px;
}
.section .warp .select .active{
    border: 1px solid #F1681A;
}
.section2{
    width: 100%;
    overflow: hidden;
    background-color: #fff;
}
.section2 .warp{
    width: 90%;
    margin: 128px auto;
}
.section2 .warp .title{
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #F2F2F2;
    padding-bottom: 70px;
}
.section2 .warp .title .left span{
    font-size: 28px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #242424;
    margin-bottom: 171px;
}
.section2 .warp .title .left .preview{
    display: flex;
    align-items: center;
}
.section2 .warp .title .left .preview .border{
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 19px;
    position: relative;
    transition: 0.3s;
}
.section2 .warp .title .left .preview .border:after{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 95%;
    height: 95%;
    border: 1px dashed #A7A7A7;
    border-radius: 50%;
    transition: 0.6s;
    z-index: 0;
}
.section2 .warp .title .left .preview .border div{
    font-size: 18px;
    font-weight: bold;
    color: #F1681A;
    position: relative;
    z-index: 1;
    transition: 0.6s;
}
.section2 .warp .title .left .preview:hover .border{
    background-color: #F1681A;
    transform: scale(1.08);
}
.section2 .warp .title .left .preview:hover .border:after{
    transform: rotate(360deg);
    opacity: 0;
}
.section2 .warp .title .left .preview:hover .border div{
    color: #fff;
}

.section2 .warp .title .left .preview p{
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #4F4F4F;
    transition: 0.6s;
}
.section2 .warp .title .left .preview:hover p{
    margin-left: 10px;
}
.section2 .warp .title .text{
    width: 903px;
}
.section2 .warp .title .text p{
    font-size: 15px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #37383B;
    line-height: 34px;
}
.section2 .warp .content{
    margin-top: 150px;
}
.section2 .warp .content .flex{
    width: 90%;
    margin: auto;
    display: flex;
    flex-wrap: wrap;
}
@media screen and (max-width: 1920px) {
    .section2 .warp .content .flex{
        width: 100%;
    }
}
.section2 .warp .content .item{
    width: 448px;
    position: relative;
    margin-right: 78px;
    margin-bottom: 100px;
}
.section2 .warp .content .item:nth-child(3n){
    margin-right: 0;
}
.section2 .warp .content .item:after{
    content: '';
    width: calc(100% - 45px);
    height: 100%;
    background: #FFFFFF;
    box-shadow: 0px 3px 15px 0px rgba(0, 0, 0, 0.08);
    position: absolute;
    left: 45px;
    top: 32px;
    z-index: 0;
}
.section2 .warp .content .item .images{
    width: 403px;
    height: 266px;
    overflow: hidden;
    position: relative;
    z-index: 1;
    display: block;
}
.section2 .warp .content .item .images img{
    width: 100%;
    height: 100%;
    transition: 2s;
}
.section2 .warp .content .item .images img:hover{
    transform: scale(1.05);
}
.section2 .warp .content .item .text{
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #242424;
    margin-top: 34px;
    position: relative;
    z-index: 1;
    margin-left: 78px;
}
.section2 .warp .content .upload{
    text-align: center;
    display: block;
    margin-top: 40px;
}
.section2 .warp .content .upload .iconfont{
    font-size: 25px;
    margin-bottom: 14px;
    color: #373737;
    animation: 0.6s rota linear infinite;
}
@keyframes rota {
    100%{
        transform: rotate(360deg);
    }
}
.section2 .warp .content .upload p{
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #373737;
}

.page{
    width: 100%;
    overflow: hidden;
    background-color: #fff;
}
.page .warp{
    width: 90%;
    margin: 37px auto 143px;
}
.page .warp .nav_line{
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #636363;
    margin-bottom: 56px;
}
.page .warp .nav_line a{
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #323232;
    margin-right: 16px;
    margin-left: 16px;
    transition: 0.6s;
}
.page .warp .nav_line a:hover{
    color: #F1681A;
}
.page .warp .nav_line a:last-child{
    margin-right: 0;
}
.page .warp .nav_line .active{
    color: #F1681A;
}
.page .warp .products_carousel{
    width: 100%;
    display: flex;
}
.page .warp .products_carousel .swiper-pagination{
    width: 245px;
    position: static!important;
    margin-right: 33px;
}
.page .warp .products_carousel .swiper-pagination .button_con{
    width: 245px;
    height: 137px;
    background: #F4F4F4;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 19px;
    cursor: pointer;
}
.page .warp .products_carousel .swiper-pagination .button_con img{
    width: 80%;
}
.page .warp .products_carousel .swiper{
    width: 80%;
    margin-left: 0;
    margin-right: 0;
}
.page .warp .products_carousel .swiper-slide{
    height: 453px;
    background: #F4F4F4;
    display: flex;
    align-items: center;
    justify-content: center;
}
.page .warp .products_carousel .swiper-slide .images{
    width: 85%;
}
.page .warp .products_carousel .swiper-slide img{
    width: 100%;
}
.page .warp .introduce{
    display: flex;
    margin-top: 80px;
}
.page .warp .introduce .select{
    border: 1px solid #F1681A;
    background-color: #F9F9F9;
    padding: 14px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #363636;
    margin-right: 88px;
}
.page .warp .introduce .text span{
    font-size: 28px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #242424;
}
.page .warp .introduce .text .download{
    display: flex;
    margin-top: 50px;
    margin-bottom: 50px;
}
.page .warp .introduce .text .download .iconfont{
    color: #F1681A;
    font-size: 19px;
    margin-right: 10px;
}
.page .warp .introduce .text .download p{
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #F1681A;
}
.page .warp .introduce .text h2{
    font-size: 22px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #242424;
}
.page .warp .introduce .text p{
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #37383B;
    line-height: 20px;
}
.page .warp .introduce .text .con{
    width: 1115px;
    display: flex;
}
.page .warp .introduce .text .con .item{
    width: 520px;
    border-bottom: 1px solid #F0F0F0;
    padding-bottom: 30px;
    margin-right: 75px;
    display: flex;
    margin-bottom: 45px;
}
.page .warp .introduce .text .con .item:last-child{
    margin-right: 0;
}
.page .warp .introduce .text .con .item p{
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #595959;
    min-width: 70px;
    margin-right: 60px;
    max-width: 345px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.page .warp .introduce .text .con .item p:nth-child(2){
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #222222;
}
.page .warp .introduce .text .active .item{
    width: 100%;
}
.page .warp .form{
    margin-top: 50px;
}
.page .warp .form span{
    font-size: 28px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #242424;
    margin-bottom: 90px;
}
.page .warp .form table{
    width: 100%;
    text-align: center;
    border-collapse: collapse;
}
.page .warp .form table tr td{
    height: 29px;
    background: #EAEAEA;
}
.page .warp .form table tr:nth-child(2),
.page .warp .form table tr:nth-child(6),
.page .warp .form table tr:nth-child(8){
    text-align: left;
}
.page .warp .form table tr:nth-child(2) td,
.page .warp .form table tr:nth-child(6) td,
.page .warp .form table tr:nth-child(8) td{
    padding-top: 20px;
    padding-bottom: 10px;
    background-color: transparent;
}
.page .warp .form table tr td{
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #121212;
    line-height: 20px;
}
.page .warp .form table tr:nth-child(2n) td{
    background: transparent;
}
.page .warp .form table tr:first-child td{
    border-bottom: 2px solid #F1681A;
    padding-bottom: 26px;
    background-color: transparent;
}

@media screen and (max-width: 1660px) {
    .section2 .warp .title .text{
        width: 71%;
    }
    .section2 .warp .content .item .images img{
        width: 77%;
        height: auto;
    }
    .section2 .warp .content .item .images{
        height: auto;
    }
    .section2 .warp .content .item .text{
        margin-left: 58px;
    }
    .section2 .warp .content .item{
        width: 28%;
    }
    .page .warp .form p img{
        width: 100%;
        object-fit: contain;
    }
    .page .warp .introduce .text{
        width: 83%;
    }
    .page .warp .introduce .select{
        margin-right: 0;
    }
    .page .warp .introduce{
        justify-content: space-between;
    }
}

@media screen and (max-width: 768px) {
    .banner_background,.banner{
        height: 250px;
    }
    .banner .text{
        margin: 110px auto 0;
    }
    .banner .text span{
        font-size: 24px;
        color: #fff;
        margin-bottom: 15px;
    }
    .banner .text p{
        color: #fff;
    }
    .section .warp .select{
        width: 100%;
        justify-content: space-between;
    }
    .section .warp .select .item{
        font-size: 12px;
        width: 47%;
        padding: 0;
        height: 40px;
        margin-right: 0;
    }
    .section .warp .select .item:last-child{
        width: 60%;
    }
    .section2 .warp{
        margin: 25px auto;
    }
    .section2 .warp .title{
        flex-direction: column;
        padding-bottom: 40px;
    }
    .section2 .warp .title .left span{
        margin-bottom: 16px;
        font-size: 24px;
    }
    .section2 .warp .title .left .preview p{
        font-size: 12px;
    }
    .section2 .warp .title .left .preview .border div{
        font-size: 12px;
    }
    .section2 .warp .title .text{
        width: 100%;
        margin-top: 20px;
    }
    .section2 .warp .title .text p{
        font-size: 12px;
    }
    .section2 .warp .content{
        margin-top: 40px;
    }
    .section2 .warp .content .flex{
        flex-direction: column;
    }
    .section2 .warp .content .item{
        width: 100%;
        background: #fff;
        box-shadow: 0px 3px 15px 0px rgb(0 0 0 / 8%);
        overflow: hidden;
        margin-right: 0;
        margin-bottom: 20px;
    }
    .section2 .warp .content .item:after{
        display: none;
    }
    .section2 .warp .content .item .images{
        margin-top: 20px;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .section2 .warp .content .item .images img{
        width: 77%;
    }
    .section2 .warp .content .item .text{
        margin-top: 5px;
        margin-bottom: 20px;
    }
    .page .warp .nav_line{
        margin-left: -16px;
        margin-bottom: 35px;
    }
    .page .warp .nav_line a {
        font-size: 12px;
        margin-bottom: 10px;
        display: inline-block;
    }
    .page .warp .products_carousel{
        flex-direction: column-reverse;
    }
    .page .warp .products_carousel .swiper{
        width: 100%;
    }
    .page .warp .products_carousel .swiper-pagination{
        display: flex;
        width: auto;
        margin-top: 20px;
    }
    .page .warp .products_carousel .swiper-pagination .button_con{
        margin-right: 20px;
        height: 63px;
    }
    .page .warp .products_carousel .swiper-pagination .button_con:last-child{
        margin-right: 0;
    }
    .page .warp .products_carousel .swiper-slide{
        height: 280px;
    }
    .page .warp .introduce{
        flex-direction: column;
        margin-top: 46px;
    }
    .page .warp .introduce .select{
        width: fit-content;
    }
    .page .warp .introduce .text{
        width: 100%;
        margin-top: 20px;
    }
    .page .warp .introduce .text span{
        font-size: 20px;
        line-height: 30px;
    }
    .page .warp .introduce .text p{
        font-size: 12px;
        line-height: 25px;
    }
    .page .warp .introduce .text .con{
        width: 100%;
        flex-direction: column;
    }
    .page .warp .introduce .text .con .item{
        width: 100%;
        margin-bottom: 19px;
        padding-bottom: 15px;
    }
    .page .warp .introduce .text .con .item p:nth-child(2){
        font-size: 12px;
    }
    .page .warp .form span{
        font-size: 22px;
        margin-bottom: 48px;
    }
    .page .warp .form p img{
        width: 100%;
        height: auto;
    }
    .page .warp{
        margin: 37px auto 70px;
    }
}