/*about*/
.background {
    font-size: 40px;
    text-align: center;
    font-weight: 700;
    background: url(../img/background.png) 50% no-repeat;
    margin-bottom: 30px;
    padding: 15px 0;
}
.about_top{
    background: url("../img/b5f80343.jpg") no-repeat;
    background-size: 100%;
    padding-top: 50px;
}
.about_top .background{
    text-align: left;
    background-position: 10%;
}
.about_top_p{
    width: 600px;
}
.about_top_text{
    margin-top: 30px;
    color: rgb(85, 84, 84);;
    font-size: 18px;
}
.about_top_boxes{
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto 20px;
}
.about_top_box{
    color: #666666;
    text-align: center;
    font-size: 20px;
}
.about_top_number{
    font-size: 30px;
    color: #e14c23;
    font-weight: bold;
}
.four{
    background-color: rgb(238,238,238);
}
.four_top{
    display: none;
    flex-wrap: wrap;
}
.four_left{
    width: 650px;
    height: 369px;
    margin-right: 30px;
}
.four_right{
    width: 450px;
    padding-top: 40px;
}
.four_right_tit{
    font-weight: bold;
    font-size: 35px;
    margin-bottom: 20px;
}
.four_top.active{
    display: flex;
}
.four_bottom{
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    text-align: center;
    color: #FFFFFF;
}
.four_bottom_box{
    width: 298px;
    background-color: #12a2e0;
    padding: 20px 0;
    transition: all .5s linear;
}
.four_bottom_box.active{
    background-color: #DA251D;
}
.four_bottom_img img{
    margin: 0 auto 10px;
}
.about_img{
    margin-top: 20px;
}
.company p{
    line-height: 2;
}
.vision_tit{
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
}
.vision p{
    font-size: 28px;
    /*font-weight: bold;*/
    text-align: center;
}
.company{
    padding-top: 50px;
}
/*content*/
/*index*/
.product_index{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.product_index .product_left{
    width: 66%;
}
.product_left_box{
    display: flex;
    align-items: center;
    /*flex-wrap: wrap;*/
    background-color: #FFFFFF;

    transition: all .5s linear;
}
.product_left_box:last-child{
    margin-top: 30px;
}
.product_left_box .product_box_text{
    padding: 20px;
    font-size: 18px;
    color: #666;
    transition: all .5s linear;
}
.product_left_box .product_box_text h2{
    color: #000;
    transition: all .5s linear;
}
.product_left_box:hover{
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.product_left_box:hover .product_box_text{
    color: #DA251D;
}
.product_left_box:hover .product_box_text h2{
    color: #DA251D;
}
.product_right_box{
    background-color: #FFFFFF;

    transition: all .5s linear;
}
.product_right_box:last-child{
    margin-top: 30px;
}
.product_right_img{
    width: 355px;
    overflow: hidden;
}
.product_right_box .product_right_text{
    padding: 20px;
    font-size: 18px;
    color: #666;
    transition: all .5s linear;
}
.product_right_box .product_right_text h2{
    color: #000;
    transition: all .5s linear;
}
.product_right_box:hover{
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.product_right_box:hover .product_right_text{
    color: #DA251D;
}
.product_right_box:hover .product_right_text h2{
    color: #DA251D;
}
.group_top{
    display: flex;
    justify-content: space-between;
    align-items: center;
    /*margin: 30px auto;*/
}
.index_box h1, .index_box h2{
    font-size: 50px;
    text-align: center;
    margin-bottom: 50px;
}
.index_box h1 span, .index_box h2 span{
    color: #DA251D;
}
.group_left{
    width: 550px;
}
.group_left_title{
    font-size: 40px;
    font-weight: bold;
}
.group_left_text{
    color: #666666;
    margin: 40px 0;
}
.group_left_button{
    background-color: #DA251D;
    padding: 8px 0;
    width: 155px;
    color: #FFFFFF;
    display: flex;
    justify-content: center;
    align-items: baseline;
}
.group_left_button span{
    margin-right: 15px;
}
.group_left_button img{
    width: 40px;
    height: 8px;
}
.group_left_button:hover{
    background-color: #383842;
}
.group_right{
    width: 600px;
}
.group_right video{
    width: 100%;
    height: 100%;
}
.group_bottom{
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    margin-bottom: 30px;
}
.group_bottom .text{
    color: #FFFFFF;
    font-size: 16px;
    width: 90%;
    margin: 0 auto;
}
.group_bottom_left{
    width: 805px;
}
.group_left_img{
    position: relative;
    aspect-ratio: 805/283;
    margin-bottom: 15px;
}
.group_left_img_text{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
}
.group_bottom_images{
    display: flex;
    justify-content: space-between;
}
.group_bottom_images img{
    width: 395px;
    aspect-ratio: 395/242;
}
.group_bottom_right{
    width: 385px;
    position: relative;
    aspect-ratio: 77/108;
    border-radius: 11px;
}
.group_bottom_right_text{
    position: absolute;
    top: 20px;
    left: 0;
    width: 100%;
    height: 100%;
}
.case_background{
    background: #f5f5f5 url("../img/index-case.jpg")no-repeat top;
}
.case_index_top{
    display: flex;
    justify-content: space-between;

}
.case_index_tit{
    color: #FFF;
    margin-bottom: 50px;
}
.case_index_tit h2{
    font-size: 40px;
}
.case_index_tit p{
    font-size: 18px;
}
.case_index_button{
    /*margin-left: 10px;*/
    font-size: 18px;
    border: 1px solid #FFF;
    color: #FFF;
    border-radius: 4px;
    line-height: 60px;
    padding: 0 44px;
    text-align: center;
    font-weight: bold;
    -webkit-transition: all .3s ease;
    -moz-transition: all .3s ease;
    -ms-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    -o-border-radius: 4px;
}
.case_index_button:hover{
    color: #DA251D;
    background-color: #FFF;
}
.case_index_boxes{
    display: flex;
    justify-content: space-between;
}
.case_index_box{
    width: 32%;
    -webkit-transition: all .5s ease;
    -moz-transition: all .5s ease;
    -ms-transition: all .5s ease;
    -o-transition: all .5s ease;
    transition: all .5s ease;
}
.case_index_box:hover{
    margin-top: -10px;
}
.case_index_text{
    padding: 20px 28px;
    background: #FFF;
}
.case_index_text a{
    display: block;
    font-size: 20px;
    color: #333;
    font-weight: bold;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    margin-bottom: 6px;
}
.advantage_boxes{
    display: flex;
    justify-content: space-between;
}
.advantage_box{
    width: 40%;
}
.advantage_text{
    margin-bottom: 50px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.advantage_num{
    width: 73px;
    height: 63px;
    background: url(../img/data-bg.png) no-repeat;
    text-align: center;
    line-height: 63px;
    color: #FFF;
    font-size: 32px;
    font-weight: bold;
}
.advantage_text_text{
    width: 360px;
}
.advantage_text_text div{
    font-size: 28px;
    font-weight: normal;
    line-height: 1.1;
    padding-bottom: 28px;
    margin-bottom: 28px;
    border-bottom: 1px dashed #999;
}
.advantage_text_text p{
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    /*-webkit-line-clamp: 2;*/
}
.content_t{
    font-size: 18px;
    line-height: 1.8;
    color: #555;
    text-align: center;
}
.content_boxes{
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}
.content_box{
    width: 28%;
    text-align: center;
    padding: 30px 10px 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
    -webkit-box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
    -moz-box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
}
.content_tit{
    text-align: center;
    font-size: 40px;
    margin-bottom: 10px;
}
.content_img{
    width: 100%;
}
.content_img img{
    margin: 0 auto;
}
.content_box p{
    font-size: 20px;
    margin-bottom: 10px;

}
.content_box strong{
    display: block;
    color: #DA251D;
    font-size: 22px;
    line-height: 36px;
}
.content_box a{
    color: #FFF;
    font-size: 18px;
    width: 136px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    cursor: pointer;
    background-color: #DA251D;
    -webkit-transition: all .3s ease;
    -moz-transition: all .3s ease;
    -ms-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    margin: 0 auto;
}
.content_box a:hover {
    border-radius: 40px;
}
.news_content{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.news_left {
    width: 500px;
    padding: 20px 26px 20px;
    background: #FFFFFF;
    box-shadow: 0 4px 14px rgb(0 0 0 / 8%);
    position: relative;
}
.news_left a {
    margin-top: 24px;
    font-size: 22px;
    font-weight: bold;
    color: #333333;
    text-align: left;
}
.news_left_time {
    margin-top: 24px;
    margin-bottom: 24px;
    font-size: 14px;
    color: #999999;
    text-align: left;
}
.news_right {
    width: 580px;
}
.news_list_box {
    padding: 18px 0;
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid #EEEEEE;
    transition: all .3s;
}
.news_list_box div:first-child{
    margin-right: 15px;
}
.news_list_time {
    width: 120px;
    margin-left: 40px;
}
.news_list_time p {
    color: #333333;
    /*font-weight: bold;*/
    font-size: 16px;
    text-align: left;
}
.news_list_time div {
    width: 48px;
    height: 20px;
    background: #BFBFBF;
    border-radius: 10px;
    margin-top: 10px;
    color: #FFFFFF;
    text-align: center;
}
.news_list_test a {
    width: 320px;
    color: #333333;
    font-size: 16px;
    text-align: left;
    overflow: hidden;

}

.news_list_box:hover {
    padding: 18px 20px;
}