#service_banner_development {
    padding: 50px 100px;
    margin-top: 120px;
    position: relative;
}

#service_banner_development .swiper-container {
    margin-left: auto;
    margin-right: auto;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

/*li*/
#service_banner_development .features-item {
    position: relative;
    float: left;
}

#service_banner_development .features-item>* {
    text-align: center
}

#service_banner_development .features-item h3 {
    font-size: 40px;
    line-height: 40px;
    margin-bottom: 50px;
    color: #000;
    opacity: 0.7;
    transition: all 0.1s;
}
#service_banner_development .features-item h3 sup{font-size: 16px;top: -20px;}

#service_banner_development .features-item i {
    display: block;
    float: left;
    position: absolute;
    width: 100%;
    height: 22px;
    background: url(../image/kjie12epyd_productBase-features-timeline.webp) no-repeat;
    background-size: contain;
    background-position: right center;
    left: 0px;
    top: 80px;
    z-index: 3
}

#service_banner_development .features-item .features-info {
    display: block;
    margin: 0 auto;
    padding: 20px;
    transition: all 0.3s;
    border-radius: 2px;
    margin-top: 80px;
}

#service_banner_development .features-item .features-info .features-info-i {
    font-size: 14px;
    color: #A0A2A8;
    line-height: 22px;
    margin-bottom: 10px
}

#service_banner_development .features-item .features-info .features-info-s {
    font-size: 16px;
    color: #545454;
    line-height: 24px;
    overflow: hidden
}

#service_banner_development .features-item.dark i {
    background: url(../image/kjie12epyd_productBase-features-timeline.webp) no-repeat;
    background-size: contain;
    background-position: right center
}

/*鼠标悬浮效果*/
/* #service_banner_development .features-item:hover h3 {
    font-size: 50px;
    line-height: 50px;
    opacity: 0.9;
}

#service_banner_development .features-item:hover a {
    background: url(../images/about/productBase-features-info.webp) no-repeat;
    background-size: 100% 100%
} */

/*左右按钮*/
#service_banner_development .swiper-button-prev {
    width: 90px;
    height: 90%;
    background: none;
}

#service_banner_development .swiper-button-prev:after {
    content: "";
    display: inline-block;
    width: 90px;
    height: 90px;
    background: url(../image/kjie12epyd_about_time_left.webp) no-repeat;
    background-size: 100% 100%;
    margin-left: -7px;
    position: absolute;
    top: -330px;
    left:6px;
}

#service_banner_development .swiper-button-next {
    width: 90px;
    height: 90%;
    background: none;
}

#service_banner_development .swiper-button-next:after {
    content: "";
    display: inline-block;
    width: 90px;
    height: 90px;
    background: url(../image/kjie12epyd_about_time_right.webp) no-repeat;
    background-size: 100% 100%;
    margin-left: -7px;
    position: absolute;
    top: -330px;
    right:0px;
}
#advantages{
    position: relative;
}
#advantages .text-center:hover{
    background: #cc1318;
}
#about_banner .introduction-center{
    text-align: center;
    color: #fff;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%,0);
    margin-top: 100px;
}
#about_banner .introduction-center p{
    line-height: 30px;
}
#about_banner .ellipsis{
    font-size: 20px;
    letter-spacing: 4px;
}
#cultural .cultural-img{
    transition: all 0.6s;
}
#cultural .cultural-img:hover{
    transform: scale(1.2);
}

@media (max-width: 768px) {
    #service_banner_development {
        margin-top: 30px;
        padding: 30px;
    }
}