:root {
    --main-color: #1f5f5e;
    --second-color:#f4ebd9;
}
/* 关于我们 开始*/
.aboutus_box {
    margin: 30px 0;
}
.aboutus_box .aboutus_tit{
    margin-bottom: 20px;
}
.aboutus_box .aboutus_tit .tit_en{
    text-align: center;
    color: grey;
    font-size: 1rem;
}
.aboutus_box .aboutus_tit .tit_cn{
    text-align: center;
    /* font-weight: bold; */
    color: var(--main-color);
    font-size: 30px;
    margin-top: 10px;
    font-size: 1.4rem;
}
.aboutus_box .aboutus_con{
    /* max-width: 1200px; */
    margin: 20px auto 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    
}
.aboutus_leftimg{
    flex: 1;
}
.aboutus_leftimg img{
    width: 90%;
    margin: 0 auto;
}
/* .aboutus_leftimg img{
    width:500px;
    height: 400px;
} */
.aboutus_box .aboutus_con .aboutus_cont{
    flex: 1;
    padding-left: 30px ;
    letter-spacing: 3px;
    text-indent: 2em;
}
.aboutus_box .aboutus_con .aboutus_cont p{
    line-height: 2.5;
}
.aboutus_box .aboutus_bot{
    max-width: 1200px;
    margin: 0 auto 0 auto;
    position: relative;
}
.aboutus_box .aboutus_bot .aboutus_bot_img img{
    /* max-width: 1200px; */
    width: 100%;
    max-height: 300px;
}
.aboutus_bot_con{
    position: absolute;
    width: 100%;
    top: 0;
    left: 0px;
    padding: 0 2rem;
}
.aboutus_bot_top{
    display: flex;
    justify-content: space-between;
    align-items: end;
    margin-top: 20px;
}
.aboutus_bot_top .titcon .tit1{
    font-weight: bold;
    font-size: 1rem;
}
.aboutus_bot_top .titcon .tit1 span{
    color: var(--main-color);
}
.aboutus_bot_top .titcon .tit2{
    font-weight: bold;
    margin: 10px 0 0 0;
    font-size: 1rem;
}
.aboutus_bot_top .more{
    font-weight: bold;
    color: var(--main-color);
    font-size: 1rem;
}
.aboutus_bot_cc{
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.aboutus_botli{
    width: calc(50% - 2.4rem);
    margin: 1rem auto;
    text-align: center;
}
.aboutus_botli .aboutus_botli_tit{
    /* font-weight: bold; */
    font-size: 50px;
    color: var(--main-color);
    font-size: 2rem;
}
.aboutus_botli .aboutus_botli_des{
    font-size: 0.8rem;
}
/* 关于我们 结束 */

/* 产品专区 开始 */ 
.productbox{
    /* max-width: 1200px; */
    margin: 30px auto;
}
.product_tit{
    margin-bottom: 20px;
}
.product_tit .tit_en{
    text-align: center;
    color: grey;
    font-size: 1rem;
}
.product_tit .tit_cn{
    text-align: center;
    /* font-weight: bold; */
    color: var(--main-color);
    font-size: 30px;
    margin-top: 10px;
    font-size: 1.4rem;
}
.product_conbox_ulone{
    display: flex;
    justify-content: space-around;
    margin: 30px 0;
    flex-wrap: wrap;
    /* display: grid;
    grid-template-columns: repeat(auto-fit, minmax(40%, 1fr)) */
}
.product_conbox_li{
    width: 49%;
    text-align: center;
    margin-bottom: 20px;
    font-size: 0.8rem;
}
.product_conbox_li img{
    /* width: 120px;
    height: 100px; */
}
.product_conbox_li_tit{
    margin: 10px 0;
    font-weight: bold;
    font-size: 1rem;
}
.product_conbox_li_con{
    width: 70%;
    margin: 0 auto;
    letter-spacing: 3px;
    line-height: 2;
    font-size: 0.8rem;
}

.product_conbox_ultwo{
    /* position: relative; */
    background-repeat: no-repeat;
    /* height: 900px; */
    background-size: cover;
    
    /* aspect-ratio: 5 / 7 */
}
.product_conbox_ultwoimg{
    /* max-width: 1200px; */
    /* position: absolute;
    top: 0;
    left: 0; */
    width: 100%;
    position: relative;
    top: -60px;
    z-index: -1;
}
.product_conbox_ultwo_con{
    /* max-width: 1200px; */
    display: flex;
    justify-content: left;
    margin: 30px 0;
    flex-wrap: wrap;
    /* margin: 50px 0; */
    /* position: absolute;
    top: 0;
    left: 0;
    z-index: 999; */
}
/* 产品专区 结束 */ 

/* 行业解决方案 开始 */
.solution_box{
    /* max-width: 1200px; */
    margin: 30px auto;
}
.solution_tit{
    margin-bottom: 20px;
}
.solution_tit .tit_en{
    text-align: center;
    color: grey;
    font-size: 1rem;
}
.solution_tit .tit_cn{
    text-align: center;
    /* font-weight: bold; */
    color: var(--main-color);
    font-size: 30px;
    margin-top: 10px;
    font-size: 1.4rem;
}
.solution_dh{
    display: flex;
    align-items: center;
    
}
.solution_dh_li{
    margin: 0 10px;
}
.solution_dh_li img{
    width: 2rem;
    height: 2rem;
}
.solution_dh_li,.solution_dh_li2{
    margin: 0 10px;
}
.solution_dh_li img:first-child{
    display: block;
}
.solution_dh_li img:last-child{
    display: none;
}
.solution_dh_li:hover img:first-child{
    display: none;
}
.solution_dh_li:hover img:last-child{
    display: block;
}
.solution_lunboli{
    display: flex;
    flex-direction: column;
    align-items: center;
}
.solution_lunboli_left_tit{
    color: var(--main-color);
    margin: 10px 0;
    font-size: 1.2rem;
    padding-left: 1.2rem;
}
.solution_lunboli_left_con{
    padding: 0 20px;
    letter-spacing: 3px;
    line-height: 2;
    text-indent: 2em;
    font-size: 0.8rem;
}
.solution_lunboli_right{
    text-align: center;
}
.solution_lunboli_right img{
    width: 90%;
    margin: 0 auto;
}
/* 行业解决方案 结束 */

/* 客户合作 开始 */
.customer_box{
    /* max-width: 1200px; */
    margin: 30px auto;
}
.customer_tit{
    margin-bottom: 20px;
}
.customer_tit .tit_en{
    text-align: center;
    color: grey;
    font-size: 1rem;
}
.customer_tit .tit_cn{
    text-align: center;
    /* font-weight: bold; */
    color: var(--main-color);
    font-size: 30px;
    margin-top: 10px;
    font-size: 1.4rem;
}
.customer_hezuo{
    display: flex;
    align-items: center;
    justify-content: space-around;
    margin-top: 30px;
    flex-wrap: wrap;
}
.customer_hezuo .customer_img{
    width: 40%;
}
.customer_hezuo .customer_img img{
    width: 100%;
    /* height: 120px; */
}
.customer_img_tit{
    font-size: 1rem;
}
/* 客户合作 结束 */

/* 联系我们 开始 */
.contact_box{
    /* max-width: 1200px; */
    margin: 30px auto;
}
.contact_contit{
    display: flex;
    align-items: center;
    margin-top: 20px;
}
.contact_contit .span1{
    width: 6px;
    height: 30px;
    background: var(--main-color);
}
.contact_contit .span2{
    color: var(--main-color);
    font-size: 25px;
    margin-left: 10px;
}
.contact_tit{
    margin-bottom: 50px;
}
.contact_tit .tit_en{
    text-align: center;
    color: grey;
    font-size: 1rem;
}
.contact_tit .tit_cn{
    text-align: center;
    /* font-weight: bold; */
    color: var(--main-color);
    font-size: 30px;
    margin-top: 10px;
    font-size: 1.4rem;
}
.contact_contit{
    width: 90%;
    margin: 10px auto;
}
.contact_form form{
    width: calc(100% - 2.4rem);
    margin: 2rem auto 0 auto;
}
.contact_form .form-top{
    /* display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between; */
}
.form-group{
    /* height: 50px; */
    display: flex;
    flex-direction: column;
    margin-top: 1.2rem;
}
.form-group .label{
    color: var(--main-color);
    font-size: 1.2rem;
    text-align: left;
}
.form-group input{
    height: 40px;
    border: none;
    background: none;
    padding: 5px;
    background: var(--second-color);
    width: 100%;
}
.form-group textarea{
    height: 100px;
}
.form-group-li3 textarea{
    height: 100px;
    background: var(--second-color);
    padding: 5px;
    border: none;
}
.form-button{
    background: var(--main-color);
    color: white;
    width: 150px;
    margin: 2rem auto;
    text-align: center;
}
.form-button input{
    color: white;
    border: none;
    background: none;
    padding:10px;
    font-size: 1rem;
}
/* 联系我们 结束 */