@media only screen and (max-width: 1650px) {
.intellectual_main{
    margin-top: 60px;
}
.right_solution{
    margin-right: 10%;
}
.left_solution{
    padding-left: 10%;
    width: 60%;
}
.left_solution2{
    padding-right: 10%
}
}
@media only screen and (max-width: 1440px) {
.content .aboutmath li{
    margin-top:60px;
}
.content .aboutmath li h1{
    font-size: 60px;
    line-height: 100px;
}
.content .aboutmath li h5{
    font-size: 18px;
}
.casenei_main li span a h4{
    font-size: 16px;
}
.casenei_main li span a p{
    line-height: 24px;
    font-size: 14px;
    margin-top: 12px;
}
.case_title dd select{
    height: 32px;
}
.case_title dt{
    line-height: 32px;
}
.news_main2 li span a h4{
    font-size: 20px;
}
.news_main2 li span a p{
    margin-top: 16px;
    font-size: 14px;
    line-height: 28px;
}
.news_main li span a h4{
    font-size: 16px;
}
.news_main li span a p{
    line-height: 24px;
    font-size: 14px;
    margin-top: 12px;
}
.intellectual_main .intellectual li span h1{
    font-size: 48px;
}

.intellectual_main .intellectual li span h4{
    font-size: 16px;
}
.main_title h5{
    font-size: 16px;
    line-height: 28px;
    margin-top: 24px;
    margin-bottom: 12px
}
.contact_main{
    height: 70px;
}
.title li a{
    font-size: 16px;
    line-height: 67px;
    padding: 0 25px;
    border-bottom: 2px #fafafa solid;
}
#adas{
    font-size: 14px;
}
.footer dt{
    padding-top: 30px;
    font-size: 16px;
}
.footer dd{
    font-size: 14px;
}
.input2{
    padding-left: 12px;
    height: 40px;
    font-size: 14px;
    margin-top: 5%;
}
.input3{
    padding-left: 12px;
    padding-top: 12px;
    height: 160px;
    font-size: 14px;
}
.contact dd span{
    background-position: left 4px;
    background-size: 24px;
    font-size: 16px;
    letter-spacing: 1px;
    line-height: 32px;
}
.contact dd{
    margin-bottom: 10px;
}
.case_mainimg li a{
    padding: 20px;
}
.left_solution dl dt button{
    width: 12px;
    height: 12px;
}
.main p{
    font-size:14px;
}
.right_solution li{
    width: 60px;
    height: 60px;
    border: 1px #333 solid;
}
.main{
    padding-bottom: 80px;
}
.left_main .img1{
    width: 500px;
    padding-right: 60px;
}
.right_main p{
    font-size: 14px;
    letter-spacing: 1px;
    line-height: 28px;
    width: 500px;
    color: #333;
    margin:40px 0;
    margin-left:60px;
}
.btn1{
    width: 120px;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    margin-left:60px;
    border-radius: 2px;
}
.logo{
    height: 80px;
}
.nav li a{
    line-height: 76px;
    font-size: 16px;
}
.main_title h1{
    font-size: 32px;
    padding-top: 60px;
}
.main_title h2{
    font-size: 14px;
    line-height: 32px;
}
.main_title h3{
    font-size: 16px;
    padding-bottom: 40px;
}
.search{
    height: 80px;
}
.search dd span img{
    width: 24px;
}
.btn3{
    width: 120px;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
}
.banner li a{
    margin-left: -60px;
}
.team .intellectual li span h1{
    font-size: 36px;
}
}
@media only screen and (max-width: 1366px) {
.team .intellectual li span h4{
    font-size: 16px;
    line-height: 32px;
}
.content .aboutmath li{
    margin-top:40px;
}
.content .aboutmath li h1{
    font-size: 60px;
    line-height: 80px;
}
.content .aboutmath li h5{
    font-size: 18px;
}
.intellectual_main{
    margin-top: 40px;
}
.input2{
    width: 48%;
    padding-left: 12px;
    height: 40px;
    margin-top: 12px;
    margin-bottom: 20px;
    border-radius: 2px;
}
.input3{
    border-radius: 2px;
    padding-left: 12px;
    padding-top: 8px;
    height: 100px;
    margin-bottom: 16px;
}
.contact{
    padding-bottom:4%;
}
.right_solution li{
    width: 60px;
    height: 60px;
}

.left_solution dl dt{
    margin: 30px 0;
}
.right_solution li{
    margin-bottom: 40px;
}
.team .intellectual li span h1{
    font-size: 28px;
}
}
@media only screen and (max-width: 1200px) {
.content .aboutmath li h5{
    font-size: 16px;
}
.content .aboutmath li{
    padding: 0 30px;
}
.casenei_main li span a h4{
    font-size: 14px;
}
.casenei_main li span a p{
    font-size: 12px;
}
.news_main2 li span a h4{
    font-size: 16px;
}
.news_main2 li span a p{
    margin-top: 12px;
    font-size: 12px;
    line-height: 24px;
}
.news_main li span a{
    padding: 20px;
}
.news_main li span a h4{
    font-size: 14px;
}
.news_main li span a p{
    line-height: 20px;
    font-size: 12px;
    margin-top: 12px;
}
.main_title h4{
    margin-top: 18px;
    margin-bottom: 14px;
}
.main p{
    line-height: 28px;
}
.right_solution li{
    margin-bottom: 28px;
}
.left_solution{
    width: 66%;
    margin-top: 0;
}
.main{
    padding-bottom: 80px;
}
.left_main .img1{
    width: 400px;
    padding-right: 30px;
}
.right_main p{
    font-size: 14px;
    letter-spacing: 1px;
    line-height: 28px;
    width: 400px;
    color: #333;
    margin:20px 0;
    margin-left:30px;
}
.btn1{
    width: 120px;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    margin-left:30px;
}
.banner li a{
    margin-top: 48px;
}
.nav li a{
    padding: 0 20px;
}
.search dd{
    margin-left: 20px;
}
.team .intellectual li span h1{
    font-size: 24px;
}
.team .intellectual li span h4{
    font-size: 14px;
    line-height: 28px;
}
}
@media only screen and (max-width: 1024px) {
.left_solution dl dt{
    margin: 15px 0;
}
.right_solution li{
    width: 48px;
    height: 48px;
    border: 1px #333 solid;
    margin-bottom: 34px;
}
}
@media only screen and (max-width: 1000px) {
.nopadding h1{
    padding-top: 0 !important;
}
.left_solution2{
    padding-bottom: 60px;
}
.left_solution2 li h1,.left_solution2 li h2,.left_solution2 li h4{
    text-align: center;
}
.footer dd{
    width: 25%;
}
.left_solution dl dt{
    padding: 30px 0;
}
.right_solution li{
    margin-bottom: 24px;
}
.left_main .btn1{
    margin-bottom:60px;
}
.left_main{
    width: 100%;
    float: none;
}
.left_main .img1{
    padding: 10px;
    float: none;
    margin: 0 auto;
}
.right_main{
    width: 100%;
    float: none;
}
.right_main p{
    font-size: 16px;
    letter-spacing: 1px;
    line-height: 32px;
    width: 100%;
    color: #333;
    margin:30px 0;
    margin-left:0;
    padding: 0 4%;
    text-align: center;
}
.btn1{
    margin: 0 auto;
}
#navtop{
    display: none;
}
#phnav{
    display: block;
}
.banner{
    position: static;
    margin-top: 70px;
}
.banner_btn{
    display: none;
}
.logo{
    height: 70px;
}
.nav li a{
    line-height: 66px;
    font-size: 16px;
}
.search{
    height: 70px;
}
.banner li a{
    display: none;
}
}
@media only screen and (max-width: 768px) {
.content .aboutmath li{
    margin-top:40px;
}
.content .aboutmath li h1{
    font-size: 48px;
    line-height: 60px;
}
.content .aboutmath li h5{
    font-size: 14px;
}
.casenei_main li span a h4{
    font-size: 16px;
}
.casenei_main li span a p{
    font-size: 14px;
}
.casenei_main li{
    width: 42%;
    float: left;
    margin: 4%;
}
.case_title dd select{
    height: 32px;
}
.case_title dt{
    font-size: 14px;
    line-height: 32px;
}
.news_main2 li span a p{
    display: -webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news_main{
    width: 92%;
    padding: 2% 0;
}
.news_main li{
    width: 45%;
    margin: 2%;
}
.intellectual_main .intellectual li span h1{
    font-size: 36px;
}

.intellectual_main .intellectual li span h4{
    font-size: 14px;
}
.contact{
    padding : 0 4%;
    padding-bottom : 4%;
}
.footer dd{
    width: 33.3%;
}
.right_solution li{
    margin-bottom: 28px;
}
.main{
    padding-bottom: 50px;
}
 .banner li img{
    width: 140%;
    margin-left: -20%;
 }
.team .intellectual li span h1{
    font-size: 18px;
}
.team .intellectual li span h4{
    font-size: 12px;
    line-height: 20px;
}
}

@media only screen and (max-width: 720px) {
.case_title{
    padding-bottom: 20px;
}
.casehide{
    display: block;
}
.case_title dd select{
    font-size: 12px;
    height: 28px;
    margin-top: 20px;
}
.case_title dt{
    font-size: 14px;
    line-height: 28px;
    margin-top: 20px;
}
}

@media only screen and (max-width: 640px) {
.content .aboutmath li{
    float: none;
}
.contact_main{
    height: 60px;
}
.title li a{
    font-size: 14px;
    line-height: 57px;
    padding: 0 8px;
}
.twbjq h1{
    font-size: 20px;
    padding-top: 50px;
    padding-bottom: 30px;
}
}
@media only screen and (max-width: 480px) {
.cooperation li{
    width: 100%;
    float: none;
    padding: 4% 0;
    opacity: 1;
}
.casenei_main li span a h4{
    font-size: 16px;
}
.casenei_main li span a p{
    font-size: 14px;
}
.casenei_main li{
    width: 92%;
    float: none;
    margin: 4%;
}
.twbjq h1{
    font-size: 16px;
    padding-top: 40px;
    padding-bottom: 20px;
}

.news_main2 li span a{
    padding: 4% 0;
}
.news_main2 li{
    padding: 4% 0;
}
.news_main2 li div{
    width:100%;
    padding:0 4%;
    float: none;
}
.news_main2 li span{
    width: 100%;
    padding: 0 4%;
    float: none;
}
.news_main{
    width: 92%;
    padding: 4% 0;
}
.news_main li{
    width: 92%;
    margin: 4%;
}

#marginnone{
    margin: 0 auto;
    margin-bottom: 30px;
}

.intellectual_main .intellectual li{
    float: none;
    width: 60%;
    margin-left: 0;
    margin: 0 auto;
    position: relative;
    margin-bottom: 30px;
}
.solutionimg .advantage02{
    display: block;
}
.solutionimg .advantage01{
    display: none;
}
.contact dd img{
    margin-left:48px;
}
.input2{
    margin-top: 0;
}
.contact .dfr{
    float: none;
    width: 100%;
}
.contact .dfl{
    float: none;
    width: 100%;
}
.footer dd{
    width: 50%;
}
input.btn1{
    width: 100%;
    margin-bottom: 20px;
}
.case_mainimg li a p{
    display: none;
}
.left_solution{
    float: none;
    width: 100%;
    margin-left: 0;
    padding: 20px 4%;
}

.right_solution{
    display: table;
    float: none;
    margin-right: 0;
    margin: 0 auto;
    margin-top: 40px;
    margin-bottom: 0;
}
.right_solution li{
    float: left;
    margin: 0 10px;
}
.left_main .img1{
    width: 80%;
}
.main_title h1{
    font-size: 24px;
    padding-top: 40px;
}
.main_title h2{
    font-size: 14px;
    line-height: 40px;
}
.main_title h3{
    font-size: 16px;
    padding-bottom: 20px;
}
}

@media only screen and (max-width: 400px) {
.contact_main{
    height: 50px;
}
.title li a{
    font-size: 12px;
    line-height: 47px;
    padding: 0 6px;
}
}

@media only screen and (max-width: 360px) {
.contact dd img{
    margin-left:24px;
}
}

@media only screen and (max-width: 320px) {
.contact dd img{
    margin-left:12px;
}
}