.fl{ float:left; }
.fr{ float:right; }
.clear{ clear:both; }


/*每屏标题*/
.about-title{
    letter-spacing: 4px;
    text-align: center;
    display: flex;
    justify-content:center;
    align-items:center;
    padding-top: 80px;
    padding-bottom: 50px;
}

.about_banner{
    background: url("/public/images/about/synopsis_banner.jpg") no-repeat top center;
}



.about-title span{
    margin: 0 42px 0 45px;
    font-size: inherit;
    line-height: inherit;
}

.about-title div{
    height: 2px;
    width: 114px;
    background-color: #bebebe;
}

#about-us {
    position: relative;
    padding-bottom: 80px;
}

#about-us  .us-right-title{
    margin-top: 50px;
    margin-bottom: 30px;
    font-weight: normal;
    letter-spacing: 1px;
}

#about-us .us-text{
    text-align: justify;
    line-height: 26px;
    margin-bottom: 16px;
    color: #666;
}


#about-us .about-data{
    position: absolute;
    z-index: 2;
    bottom: 35px;
    left: 600px;
}

#about-us .about-data li{
    float: left;
    margin-right: 115px;
    text-align: center;
}

#about-us .about-data .numb{
    font-size: 46px;
    font-family: "Source Han Sans CN";
    font-weight: normal;
}

#about-us .about-data .com{
    font-size: 18px;
    color: #002063;
    font-weight: bolder;
}

#about-us .about-data .top{
    position: relative;
    top: -25px;
}

#about-us .about-data h5{
    height: 48px;
    line-height: 48px;
}

#about-us .about-data h5 .numb{
    color: #002063;
    font-size: 48px;
}

#about-us .about-data li:last-child{
    margin-right: 0;
}

#about-us .about-data span{
    font-size: 14px;
    color: #666;
    line-height: 48px;
}


.us-box{
    position: relative;
}


.us_img{
}

#about-us .us-right{
    height: 100%;
    width: 585px;
    float: right;
    position: relative;
    margin-top: -20px;
}

#development{
    position: relative;
    left: 0;
    overflow: hidden;
    background-color: #f8f8f8;
}

#development .about-title{
    position: relative;
    z-index: 2;
}


/*.dv-bg{*/
    /*height: 436px;*/
    /*margin: 0 auto;*/
    /*position: relative;*/
    /*margin-bottom: 80px;*/
    /*z-index: 20;*/
    /*margin-top: 20px;*/
    /*left: 140px;*/

/*}*/


.dv-bg{
    width: 816px;
    height: 436px;
    background: url("/public/images/about/dv_bg.png") no-repeat;
    margin: 0 auto;
    position: relative;
    margin-bottom: 80px;
    z-index: 20;
    margin-top: 20px;
}


.dv-text{
}

.dv-text h5{
    letter-spacing: 1px;
    font-size: 18px;
    color: #002063;
    font-weight: bold;
    font-stretch: normal;
    margin-bottom: 4px;
}

.dv-text p{
    letter-spacing: 2px;
    color: #666;
}

.dv-text li{
    position: absolute;
    font-weight: normal;
}

.dv-t1{
    left: -140px;
    bottom: 0;
    text-align: right;
}

.dv-t2{
    left: 147px;
    bottom: 55px;
    text-align: left;
}

.dv-t3{
    left: -40px;
    bottom: 195px;
    text-align: right;
}

.dv-t4{
    left: 380px;
    bottom: 155px;
    text-align: left;
}

.dv-t5{
    left: 326px;
    bottom: 275px;
    text-align: right;
}

.dv-t6{
    left: 710px;
    bottom: 268px;
    text-align: left;
    width: 265px;
}

.dv-t7{
    left: 565px;
    bottom: 388px;
    text-align: right;
    /*width: 265px;*/
}

.dv-bird{
    position: absolute;
    left: 128px;
    top: 38px;
    /*animation:birdmove 50s linear infinite;*/
}

@keyframes birdmove {
    0{
        left: 128px;
    }

    50%{
        left: 500px;
    }

    100%{
        left: 128px;
    }
}

.dv-logo{
    position: absolute;
    bottom: -10px;
    right: -105px;
}

.dv-mountain{
    position: absolute;
    bottom: 0;
    z-index: 2;
}

.dv_boat{
    position: absolute;
    bottom: 0;
    left: 150px;
    animation: boatmove 50s linear infinite;
}

@keyframes boatmove {
0{
    left: 150px;
}

50%{
    left: 500px;
}

100%{
    left: 150px;
}
}


/*荣誉资质*/
#history { background:url("http://www.myir-tech.com/public/images/about/10_bg_04.png") no-repeat center center; max-width:100%; overflow:hidden; height:900px;}
#history h2{ font-size:24px; text-align:center; color:#fff; line-height:100px; }
#history  iframe{ width:100%; overflow:hidden; height:920px; }

#honour{
    background: url('/public/images/about/ry_bg.png') no-repeat center;
    background-size: cover;
    padding-bottom: 80px;
}

#honour .about-title{
    color: #fff;
}


#honour .about-title>div{
    background-color:#fff;
}

.ry-ititle {
    display: flex;
    align-items: center;
    margin-bottom: 6px;
    margin-left: -15px;
}
.ry-ititle span{
    width: 50px;
    height: 44px;
    background: url("/public/images/about/ititle_img.png") no-repeat ;
    display: inline-block;
    transform: scale(0.3);
}

.ry-ititle h4{
    color: #ffffff;
    font-size: 24px;
    letter-spacing: 2px;
}


.ry-zs-box{
    width: 100%;
    overflow: hidden;
    vertical-align: middle;
    position: relative;
    padding: 20px 0;
    z-index: 10;
    margin-bottom: 20px;
}

.ry-zs-img{

}

.ry-zs-img ul {
    white-space: nowrap;

}

.ry-zs-img ul li{
    display: inline-block;
    margin: 0 10px;
    height: 240px;
}

.ry-zs-img ul li:hover{
    cursor: pointer;
}

.ry-zz-img ul li img{

}

.ry-zs-img .swiper-slide{
    width: 240px;
    height: auto;
    display: flex;
    align-items: flex-end;
}

.ry-zs-img .swiper-slide:hover{
    cursor: pointer;
}

.ry-zs-img img{
    max-width: 100%;
    max-height: 100%;
}

.ry-bt-wrap>div{
    float: left;
}


.ry-bt-left  .ry-ititle{
    margin-top: 50px;
    margin-bottom: 6px;
}


.ry-bt-left ul {
    display: flex;
    justify-content: space-between;

}

.ry-bt-left:first-child ul {
    width: 360px;
}

.ry-bt-left li p{
    margin-top: 30px;
    text-align: center;
    color: #fff;
}

.ry-bt-left:first-child ul{
    padding-top: 25px;
}

.ry-bt-left:last-child{
    float: right;
}

.ry-bt-left:last-child ul li{
    margin-right: 5px;
}

.ry-bt-left ul li img{
    display: block;
}

.ry-bt-left:last-child ul li:first-child{
    display: flex;
    align-items: center;
}

/*图片放大查看*/
.big_img{position: fixed;z-index: -1;opacity: 0;background: rgba(0,0,0,0.9);width: 100%;height: 100%;top:0;left:0;}
.big_img .swiper-container {position: relative;width: 100%;height: 100%;}
.big_img .swiper-container  .swiper-wrapper{width: 100%;height: 100%;}
.big_img .swiper-slide{width: 100%;height: 100%;display: table}
.big_img .swiper-slide .cell{width: 100%;;height: 100vh;display: table-cell;vertical-align: middle;text-align: center;}
.big_img .swiper-slide img{max-width: 90%;max-height: 90%;margin:0 auto;z-index: 112;position: relative;}
.big_img .swiper-pagination{position: absolute; top:1.2rem;text-align: center;width: 100%;color: #fff;font-size: 16px}
.big_img .swiper-pagination span{margin:0 0.05rem;color: #fff;}
.big_img .swiper-button{top: 50%;padding: 20px;z-index: 999}
.big_img .swiper-button-next{right: 10px}
.big_img .swiper-button-prev{left: 10px}
.big_img  .swiper-pagination-fraction{bottom: auto}


@media (max-width: 1200px) {
    .big_img .swiper-button{
        display: none;
    }
}

@media (max-device-width: 768px) {
    .big_img .swiper-pagination {font-size: 40px}
}



/*合作伙伴*/

.partner-control {
    display: flex;
    align-items: center;
    font-size: 20px;
    margin-bottom: 50px;
}

.partner-control span{
    letter-spacing: 2px;
    color: #333333;
    line-height: 24px;
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 2px;
}

.partner-control span.line{
    margin: 0 32px;
    width: 1px;
    height: 24px;
    background-color: #999999;
}


.partner-control span.active{
    color: #f08519;
}

.partner-control span.text:hover{
    cursor: pointer;
    color: #f08519;
}

.pt-img-box{
    padding-bottom: 50px;
}

.pt-img-list{
    display: none;
    flex-wrap: wrap;
    gap: 10px;
}

.pt-img-list.active{
    display: flex;
}

.pt-img-list li{
    width: calc((100% - 60px) / 7);
    box-sizing: border-box;
    border: 1px solid #ccc;
    transition: .3s all;
}

.pt-img-list li:hover{
    transform: translateY(-5px);
}

.pt-img-list li img{
    width: 100%;
}

.pt-img-list>li:nth-child(5n){
    margin-right: 0;
}