.yu_banner{
    width: 100%;
}

.yu_banner .swiper-slide a{
    width: 100%;
    display: flex;
    align-items: center;
}
.yu_banner .swiper-slide a img{
    width: 100%;
}
.yu_banner .swiper-pagination-bullet{
    width: 16px;
    height: 16px;
    background-color: #fff;
    border: 1px solid #000;
    opacity: .5;
}
.yu_banner .swiper-pagination-bullet-active{
    background-color: #000;
    border: 1px solid #fff;
    opacity: 1;
}

/* 关于我们 */
.yu_about{
    width: 100%;
    padding: 76px 0;
    background: url(../images/back_img2.jpg) no-repeat;
    background-size: 100% auto;
    background-position: 0 100%;
}
.yu_about .index_top{
    width: 100%;
    display: flex;
    justify-content: center;
    position: relative;
    margin-bottom: 40px;
}
.yu_about .index_top .index_top_p{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.yu_about .index_top .index_top_p p{
    font-size: 26px;
    color: rgb(86, 104, 146);
    line-height: 1.3;
    margin-bottom: 6px;
    font-weight: bold;
}
.yu_about .index_top .index_top_p span{
    font-size: 14px;
    color: #666;
}
.yu_about .about_p{
    width: 100%;
    font-size: 14px;
    line-height: 28px;
    color: #777;
    text-align: center;
}

/* .解决方案 */
.yu_sol{
    width: 100%;
}
.sol_ul{
    width: 100%;
}
.sol_ul a{
    width: 48%;
    margin-right: 4%;
    margin-bottom: 40px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    background-color: #f5f5f5;
    /* padding-bottom: 50px; */
    position: relative;
}
.sol_ul a:nth-child(2n){
    margin-right: 0;
}
.sol_ul a .sol_img{
    width: 50%;
    overflow: hidden;
}
.sol_ul a .sol_img img{
    width: 100%;
    transition: all .3s;
}
.sol_ul a:hover .sol_img img{
    transform: scale(1.1);
}
.sol_ul a .sol_com{
    width: 50%;
    padding: 14px 30px 0;
}
.sol_ul a .sol_com h3{
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
    white-space: nowrap; 
    text-overflow: ellipsis;
    overflow: hidden; 
    font-weight: 400;
}
.sol_ul a .sol_com .sol_p{
    height: 108px;
    font-size: 14px;
    color: #777;
    line-height: 26px;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden; 
}
.sol_ul a::after{
    position: absolute;
    content: "";
    bottom: 0;
    right: 0;
    width: 0;
    height: 0;
    border-bottom: 30px solid rgb(86, 104, 146);
    border-left: 30px solid transparent;
    display: none;
}
.sol_ul a:hover::after{
    display: block;
}

.more_div{
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 20px 0;
}
.more_div a{
    width: 160px;
    height: 45px;
    font-size: 14px;
    color: #fff;
    background-color: rgb(86, 104, 146);
    border-radius: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 产品中心 */
.yu_pro{
    width: 100%;
    padding: 20px 0;
}

.pro_ul1{
    width: auto;
    justify-content: center;
    margin-bottom: 30px;
}
.pro_ul1 a{
    display: block;
    padding: 13px;
    font-size: 14px;
    color: #555;
    background-color: #f5f5f5;
    transition: all .3s;
}
.pro_ul1 a:hover{
    background-color: rgb(86, 104, 146);
    color: #fff;
}

.pro_ul2{
    width: 100%;
    align-items: flex-start;
}
.pro_ul2 a{
    width: 31%;
    margin-right: 3.5%;
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    background-color: #f5f5f5;
    padding: 0 40px;
}
.pro_ul2 a:nth-child(3n){
    margin-right: 0;
}
.pro_ul2 a .pro_img1{
    width: 100%;
    position: relative;
    overflow: hidden;
}
.pro_ul2 a .pro_img1 .img{
    width: 100%;
}
.pro_ul2 a .pro_img1 .img img{
    width: 100%;
}
.pro_ul2 a .pro_img1 .img_none{
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1;
    transition: all .3s;
}
.pro_ul2 a .pro_img1 .img_none img{
    width: 100%;
}
.pro_ul2 a .pro_img1:hover .img_none{
    top: 0;
}
.pro_ul2 a p{
    width: 100%;
    padding: 10px 0 20px;
    text-align: center;
    font-size: 14px;
    color: #555;
}

@media (max-width:767px){
    .yu_banner .swiper-pagination-bullet{
        width: 10px;height: 10px;
    }
    .yu_about{padding: 50px 15px 60px;}
    .yu_about .index_top .index_top_p p{font-size: 22px;}

    .sol_ul{padding: 0 15px;}
    .sol_ul a{width: 48%;padding-bottom: 30px;}
    .sol_ul a .sol_img{width: 100%;}
    .sol_ul a .sol_com{width: 100%;padding: 18px 10px 0;}
    .pro_ul2{padding: 0 15px;}
    .pro_ul2 a{
        width: 48%;margin-right: 4%;padding: 0 10px;
        white-space: nowrap;text-overflow: ellipsis;overflow: hidden;
    }
    .pro_ul2 a:nth-child(2n){margin-right: 0;}
    .pro_ul2 a:nth-child(3){margin-right: 4%;}
}

@media (max-width:991px) and (min-width:768px){
    
}

@media (min-width:992px) and (max-width:1024px){
    
}

@media (min-width:1200px) and (max-width:1300px){
    
}