.fixed_background {
    height: 600px !important;
}

.banner {
    width: 100%;
    height: 600px;
    position: relative;
}

.banner .title h1 {
    font-size: 34px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
}

.banner .title {
    position: absolute;
    top: 317px;
    width: 100%;
    text-align: center;
}

.section1 {
    width: 100%;
    background-color: #fff;
}

.section1 .joke {
    width: 1321px;
    margin: auto;
}

.section1 .title {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 100px 0 46px;
    border-bottom: 1px solid #EDEDED;
}

.section1 .title .item {
    font-size: 26px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #1D1D1D;
    margin-right: 85px;
    transition: 0.6s;
    cursor: pointer;
}

.section1 .title .on {
    color: #8D6648;
}

.section1 .content {
    margin-top: 68px;
    margin-bottom: 132px;
}

.section1 .content .after-sales {
    width: 1273px;
    padding: 0 0 25px 0;
}

.section1 .content .after-sales .swiper-slide {
    opacity: 0 !important;
    transition: 1s;
}

.section1 .content .after-sales .swiper-slide-active {
    opacity: 1 !important;
}

.section1 .content .after-sales .swiper-slide .item {
    transition: 1s;
    max-height: 685px;
    overflow: auto;
    transform: translateY(25px);
    opacity: 0;
    padding: 0 100px 0 0;
}

.section1 .content .after-sales .swiper-slide-active .item {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.4s;
}

.section1 .content .after-sales .swiper-slide .item .scrollbar-track-y {
    width: 4px !important;
    background-color: rgba(234, 231, 228, 1) !important;
    opacity: 1 !important;
}

.section1 .content .after-sales .swiper-slide .item .scrollbar-thumb {
    width: 4px !important;
    background-color: rgba(153, 153, 153, 1) !important;
    opacity: 1 !important;
}

.section1 .content .on {
    display: block;
}

.section1 .content .item h4 {
    font-size: 18px;
    color: #232323;
    line-height: 36px;
}

.section1 .content .item p {
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #4A4848;
    line-height: 35px;
}

@media screen and (max-width: 1856px) {

}
@media screen and (max-width: 1792px) {

}
@media screen and (max-width: 1680px) {

}
@media screen and (max-width: 1600px) {

}
@media screen and (max-width: 1440px) {
    .section1 .joke{
        width: 85%;
    }
}
@media screen and (max-width: 1400px) {

}

@media screen and (max-width: 1366px) {

}
@media screen and (max-width: 1025px) {
    .banner .title h1{
        font-size: 28px;
    }
    .section1 .joke{
        width: 90%;
    }
    .section1 .title .item{
        font-size: 19px;
        margin-right: 0;
    }
    .section1 .title .item:not(:last-child) {
        margin: 0 7% 0 0;
    }
    .section1 .title{
        padding: 66px 0 28px;
    }
    .section1 .content {
        margin-top: 36px;
        margin-bottom: 24px;
    }
    .section1 .content .after-sales{
        width: 100%;
    }
    .section1 .content .item p{
        font-size: 12px;
        line-height: 31px;
    }
    .section1 .content .after-sales .swiper-slide .item{
        padding: 0;
        max-height: unset;
    }
}