@media only screen and (max-width: 1910px){
    .processing-list{
        width: 19%;
        margin-left: 1%;
    }
    .processing-list2{
        width: 39%;
       margin-left: 1.3%;
    }
    .processing-box .processing-list:nth-child(2){
        margin-left: 4px;
    }
    .processing-box .processing-list:last-child{
        margin-left: 1.3%;
        margin-right: 0;
    }
    .processing-list-img2{
        width: 49%;
    }
    .processing-margin{
        margin-left: 2%;
    }
    .processing-list{
        width: 19%;
    }
    .processing-box{
        width: 100%;
        margin: 20px auto;
        padding: 0 20px;
        box-sizing: border-box;
    }
}
@media only screen and (max-width: 1500px){
    .works-page-box{
        width: 1020px;
    }
    .page-link-prev span,
    .page-link-next span{
        width: 25px;
    }
    .page-link-prev{
        left: -130px;
    }
    .page-link-next{
        right: -130px
    }
}
@media only screen and (max-width: 1366px){
    .header-logo{
        margin-left: 20px;
    }
    .index-construction-icon3{
        left: -18px;
    }
    .banner-slong{
        font-size: 40px;
        top: calc(50% - 32px);
    }
}
@media only screen and (max-width: 1200px){
    .index-about-box{
        width: 95%;
        margin: 0 auto;
        margin-top: 50px;
    }
    .index-construction{
        width: 95%;
        display: block;
        margin: 0 auto;
    }
    .main-box{
        width: 1000px;
    }
    .footer-box{
        width: 95%;
    }
    .main-products-box{
        width: 750px;
    }
    .main-products-list{
        width: 240px;
        height: 215px;
    }
    .engineering-page-b-img-list{
        height: 345px;

    }
    .engineering-page-left{
        width: 450px;
    }
    .engineering-page-s-img{
        height: 75px;
    }
    .works-box{
        width: 95%;
        display: block;
        margin: 0 auto;
    }
    .works-list{
        width: 32.3333%;
        margin-bottom: 1.1%;
    }
    .works-list-box .works-list:nth-child(3n+2){
        margin: 0 1.1%;
    }

    .index-about-info-left{
        width: 47%;
    }
    .works-page-box{
        width: 1000px;
    }
    .item-page-b-img-box{
        width: 464px;
    }
    .item-page-b-img{
        height: 368px;
    }
    .item-page-s-img{
        width: 114px;
        height: 85px;
    }
    .item-page-s-img-box{
        width: calc(100% - 474px);
    }
    .item-page-s-img-box{
        height: 400px;
    }
}

@media only screen and (max-width: 1023px){
    .index-about-info-left{
        width: 100%;
        float: none;
    }
    .index-about-info-right{
        width: 100%;
        float: none;
    }
    .index-about-service-list{
        font-size: 0;
    }
    .index-about-service-list li{
        width: 33%;
        display: inline-block;
    }
    .index-about-info-img1{
        width: 48%;
        display: inline-block;
    }
    .index-about-info-img2-box{
        width: 50%;
        display: inline-block;
        margin-left: 2%;
    }
    .index-about-info-img2-box.active span{
        animation: none;
        opacity: 1;
        position: static;
    }
    .index-about-info-right{
        font-size: 0;
        margin-bottom: 20px;
    }
    .index-about-info-img2-box{
        vertical-align: top;
    }
    .index-construction-list2-arrow1 span,
    .index-construction-list2-arrow2 span{
        width: 100px;
    }
    .index-construction-arrow-next{
        width: 75px;
    }
    .main-list-box{
        width: 100%;
        float: none;
    }
    .main-products-box{
        width: 100%;
        float: none;
    }
    .main-box{
        width: 750px;
        max-width: 100%;
        display: block;
        margin: 0 auto;
    }
    .main-list-title:after{
        border-top: 15px solid #FFF;
        border-left: 15px solid transparent;
        border-right: 15px solid transparent;
        animation: none;
        opacity: 1;
        right: 20px;
        top: 13px;
    }
    .main-list-title{
        text-align: center;
        padding-left: 0;
    }
    .main-list li{
        animation: none;
        opacity: 1;
    }
    .main-products-box{
        margin-top: 20px;
    }
    .processing-box{
        padding: 0 10px;
    }
}
@media only screen and (max-width: 1000px){

    .main-list li,
    .index-about-info-img1,
    .index-about-info-img2-box span{
        animation: none;
        opacity: 1;
    }
    .banner-slong{
        font-size: 30px;
        top: calc(50% - 24px);
    }
    .index-about-info-img1,
    .index-about-info-img2-box span,
    .index-about-service-title,
    .index-about-service-list li,
    .index-construction-list-title,
    .engineering-page-left,
    .engineering-page-title,
    .engineering-page-edit,
    #engineering-page .back,
    .processing-title
    {
        opacity: 1;
        animation: none;
    }

    .a1, .a2, .a3,
    .contact-title,
    .contact-info-form,
    .contact-info-box,
    .index-construction-icon,
    .index-construction-icon2,
    .index-construction-icon3,
    .index-construction-icon4,
    .index-construction-icon5,
    .index-construction-logo{
        opacity: 1;
        animation: none;
    }
    .rwd-menu{
        display: block;
    }
    .header-logo{
        float: none;
        width: 100%;
        margin-left: 0;
        padding-left: 20px;
        
    }
    .header-logo.active{
        box-shadow: rgba(0, 0, 0, 0.7) 0px 2px 2px;
        margin-bottom: 2px;
        transition: all .4s linear;
    }
    .header-menu{
        float: none;
        position: absolute;
        width: 100%;
        z-index: 999;
        text-align: center;
    }
    .header-menu li{
        width: 50%;
    }
    .header-menu li .header-menu-title{
        -webkit-transform: translateX(-20%);
        transform: translateX(-20%);
        opacity: 0;
        transition-delay: 0.5s;
    }
    .header-menu.active li .header-menu-title{
        -webkit-transform: translateX(0%);
        transform: translateX(0%);
        opacity: 1;
        transition: all .2s linear;
        
    }
    .header-menu.active li:nth-child(1) .header-menu-title{
        transition-delay: 0.5s;
    }
    .header-menu.active li:nth-child(2) .header-menu-title{
        transition-delay: 0.6s;
    }
    .header-menu.active li:nth-child(3) .header-menu-title{
        transition-delay: 0.7s;
    }
    .header-menu.active li:nth-child(4) .header-menu-title{
        transition-delay: 0.8s;
    }
    .header-menu.active li:nth-child(5) .header-menu-title{
        transition-delay: 0.9s;
    }
    .header-menu.active li:nth-child(6) .header-menu-title{
        transition-delay: 1s;
    }
    /* about */
    .index-about-info-img2-box span{
        position: static;

    }
    .index-about-info-right{
        position: relative;
    }
    .index-about-info-img1{
        width: 80%;
        display: block
    }
  
    .index-about-info-img2-box{
        width: 50%;
        position: absolute;
        bottom: 10%;
        right: 0;
    }
    .index-construction-list-1 li,
    .index-construction-list-2 li,
    .index-construction-list-3 li{
        width: 180px;
        max-width: 100%;
        display: block;
        margin: 0 auto;
    }
    .index-construction-title{
        text-align: center;
    }
    .index-construction-arrow-next img{
        transform: rotate(90deg);
    }
    .index-construction-arrow-next{
        height: 100px;
    }
    .index-construction-logo,
    .index-construction-list-2 li:nth-child(2),
    .index-construction-list-2 li:nth-child(4){
        display: none;
    }
    .index-construction-list2-arrow1,
    .index-construction-list2-arrow2
    {
        transform: rotate(90deg);
        padding-bottom: 0;
    }
    .index-construction-list-2 li:nth-child(5),
    .index-construction-list-3{
        direction: rtl;
        display: block;
    }
 
    /* works */
    .works-box{
        width: 700px;
    }
    .works-list{
        width: 330px;
        height: 262px;
        margin-bottom: 35px;
    }
    .works-list-box .works-list:nth-child(3n+2){
        margin: 0;
    }
    .works-list-box .works-list:nth-child(even){
        margin-left: 35px;
    }
    .works-page-s-img-box{
        width: 95%;
        display: block;
        margin: 0 auto;
    }
    .works-page-box{
        width: 700px;
        display: block;
        margin: 0 auto;
    }
    .works-page-s-img-box,
    .works-page-b-img-box{
        float: none;
    }
    #works-page .slick-next{
        top: 50%;
        right: -25px;
    }
    #works-page .slick-prev{
        top: 50%;
        left: -25px;
    }
    #works-page .slick-next:before{
        transform: rotate(-90deg)
    }
    #works-page .slick-prev:before{
        transform: rotate(-90deg)
    }
    .page-link-next{
        position: static;
        float: right;
    }
    .page-link-prev{
        position: static;
        float: left;
    }
    #works-page .back{
        clear: both;
    }
    .works-page-edit{
        margin-bottom: 30px;
    }
    .contact-box{
        width: 700px;
    }
    .contact-info-form{
        width: 100%;
        padding-right: 0;
    }
    .contact-info-form li.verification-box{
        width: 400px;
    }
    .contact-info-form li.button{
        width: 300px;
        display: inline-block;
    }
    .contact-info-form li.verification-box input{
        width: 230px;
    }
    .contact-info-box{
        width: 100%;
    }
    .works-page-b-img{
        height: 555px;
    }
    .index-about-service-list.active li:nth-child(1),
    .index-about-service-list.active li:nth-child(2),
    .index-about-service-list.active li:nth-child(3),
    .index-about-service-list.active li:nth-child(4),
    .index-about-service-list.active li:nth-child(5),
    .index-about-service-list.active li:nth-child(6){
        animation: none;
        opacity: 1;
    }
    header{
        position: fixed;
        top:0;
        z-index: 999;
        background-color: #FFF;
        width: 100%;
        display: block;
    }
    .header2{
        box-shadow: rgba(0, 0, 0, 0.7) 0px 2px 2px;
    }
    .header-logo-title-box{
        transition: all .3s linear;
    }
    .header2 .header-logo-title-box{
     
       font-size: 16px;
       transition: all .3s linear;
    }
    .header-logo-img{
        width: 81px;
        transition: all .3s linear;
    }
    .header2 .header-logo-img{
        width: 60px;
    }
    .rwd-menu{
        transition: all .3s linear;
    }
    .header2 .rwd-menu{
        top: 20px;
        transition: all .3s linear;
    }
    .banner-box,
    .index-banner-box{
        margin-top: 124px;
    }
    .rwd-menu{
        top: 33px;
    }
    .processing-box .processing-list:nth-child(2){
        width: 32%;
        margin-left: 7px;
    }
    .processing-box .processing-list:nth-child(3){
        margin-left: 0;
    }
    .processing-box .processing-list:last-child{
        margin-left: 18px;
        
    }
    .processing-list2{
        width: 65%;
    }
    .processing-box{
        width: 750px;
        padding: 0;
        max-width: 100%;
    }
    .processing-list{
        width: 48%;
    }
    .rwd-construction-1{
        display: none;
    }
    .rwd-construction-2{
        display: flex;
    }
    .rwd-construction-3{
        display: block;
    }

}
@media only screen and (max-width: 768px){
}
@media only screen and (max-width: 750px){
    .index-banner-box, 
    .index-banner-list, 
    .index-video-box{
        height: 500px;
    }
    .index-about-service-list li{
        width: 50%;
    }
    .index-about-info-img2-box{
        width: 200px;
    }
    .footer-logo-box{
        width: 100%;
        display: block;
        text-align: center;
    }
    .footer-logo-img{
        width: 80px;
        display: inline-block;
        vertical-align: middle;
    }
    .header-menu-title{
        line-height: 65px;
    }
    .rwd-footer{
        display: inline-block;
        vertical-align: middle;
        margin-left: 20px;
    }
    .footer-list-box{
        width: 500px;
        max-width: 100%;
        padding-left: 0;
        display: block;
        padding: 15px 0;
        margin: 0 auto;
    }
    .footer-list-box ul li{
        padding-bottom: 10px;
    }
    .web{
        position: static;
    }
    .main-box{
        width: 550px;
    }
    .banner-box{
        height: 240px;
    }
    .main-products-list{
        width: 270px;
        height: 241px;
    }
    .main-products-list:nth-child(3n+2){
        margin: 0;
    }
    .main-products-list:nth-child(even){
        margin-left: 10px;
    }
    .main-products-path, 
    .main-products-page-path,
    .main-products-title{
        display: block;
        float: none;
    }
    .main-products-page-path{
        text-align: right;
    }
    .engineering-page-left{
        display: block;
        margin: 0 auto;
        padding-right: 0;
    }
    .main-line{
        animation: none;
        transform: scale(1);
    }
    .engineering-page-right{
        width: 450px;
        max-width: 100%;
        display: block;
        margin: 0 auto;
        margin-top: 20px;
    }
    #engineering-page .main-box{
        width: 450px;
    }
    .processing-box .processing-list:nth-child(2){
        width: 100%;
        display: block;
    }
    .processing-box{
        width: 360px;
    }
    .processing-list2,
    .processing-list{
        width: 100%;
    }
    .processing-box .processing-list:last-child{
        margin-left: 0;
    }
    .contact-box{
        width: 95%;
    }
    .contact-info-form li.button{
        width: 40%;
    }
    .contact-info-form li.verification-box{
        width: 60%;
    }
    .item-page-b-img-box{
        width: 550px;
        display: block;
    }
    .item-page-b-img{
        height: 436px;
    }
    .item-page-s-img-box{
        width: 100%;
        display: block;
    }
    .item-page-s-img-list{
        max-width: 25%;
    }
    .item-page-s-img{
        float: none;
        margin: 0 auto;
    }
    .item-page-s-img-list{
        margin-bottom: 20px;
    }
    .item-page-s-img-box{
        height: 210px;
    }
    .item-page-s-img-box{
        margin-top: 20px;
    }
    .item-page-edit{
        margin-bottom: 20px;
    }
    .works-box, .works-page-box{
        animation: none;
    }
    .works-list-box{
        width: 550px;
        max-width: 100%;
        display: block;
        margin: 0 auto;
    }
    .works-list{
        width: 270px;
        height: 215px;
    }
    .works-list-box .works-list:nth-child(even){
        margin-left: 6px;
    }
    .works-list{
        margin-bottom: 12px;
    }
    .works-page-img-box, .works-page-edit{
        width: 550px;
    }
    .works-page-b-img{
        height: 378px;
    }
    .works-page-s-img{
        height: 110px;
    }
    #works-page .slick-next,
    #works-page .slick-prev{
        display: none!important;
    }
    .works-page-s-img-box{
        width: 100%;
    }
    .works-page-box{
        width: 550px;

    }
    .engineering-page-edit{
        margin: 20px 0;
    }
    #engineering-page .back{
        text-align: center;
    }
}

@media only screen and (max-width: 550px){
    .footer-list-box ul li{
        display: block;
    }  
}
@media only screen and (max-width: 480px){
    .header-logo{
        padding-left: 10px;
    }
    .header-logo-title-box{
        font-size: 18px;
    }
    .rwd-menu{
        width: 40px;
    }
    .rwd-menu span{
        width: 30px;
    }
    .rwd-menu span:nth-child(even){
        margin: 5px auto;
    }
    .header2 .rwd-menu{
        top: 26px;
    }
    .index-banner-slong, .index-video-slong{
        font-size: 20px;
    }
    .index-banner-box, .index-banner-list, .index-video-box {
    height: calc(100vh - 124px);
    }
    .index-about-service-list li{
        width: 100%;
        display: block;
    }
    .index-about-info-img2-box{
        display: none;
    }
    .index-about-info-img1{
        width: 100%;
    }
    .footer-mail{
        width: 220px;
    }
    .footer-list-box ul{
        width: 350px;
        margin: 0 auto;
    }
    .main-box{
        width: 95%;
        display: block;
        margin: 0 auto;
    }
    .main-products-path, .main-products-page-path, .main-products-title{
        margin: 10px 0;
    }
    .main-products-list{
        width: 100%;
        margin-bottom: 15px;
    }
    .main-products-list:nth-child(even){
        margin-left: 0;
        margin-bottom: 15px;
    }
    #engineering-page .main-box{
        width: 95%;
    }
    .main-products-page-path{
        text-align: left;
    }
    .engineering-page-b-img-list{
        height: 284px;
    }
    .engineering-page-s-img-box .slick-next,
    .engineering-page-s-img-box .slick-prev{
        display: none!important;
    }
    .works-list{
        width: 370px;
        height: 295px;
        margin: 0 auto;
        margin-bottom: 12px;
        display: block;
    }
    .works-list-box .works-list:nth-child(even){
        margin: 0 auto;
        margin-bottom: 12px;
    }
    .works-page-img-box, .works-page-edit{
        width: 370px;
    }
    .works-page-b-img{
        height: 292px;
    }
    .works-page-s-img{
        height: 75px;
    }
    .page-link-prev{
        margin-left: 5%;
    }
    .page-link-next{
        margin-right: 5%;
    }
    .rwd-menu span:nth-child(4){
        top: -19px;
    }
    .contact-info-form li.verification-box .verification-show{
        width: 30%;
    }
    .contact-info-form li.verification-box input{
        margin-left:0;
        width: 68%;
    }
    .banner-slong{
        font-size: 20px;
        top: calc(50% - 24px);
    }
    .banner-box{
        height: 200px;
    }
    .works-list-box .works-list:nth-child(3n+2){
        margin-bottom: 12px;
    }
    .processing-box .processing-list:nth-child(2),
    .processing-margin,
    .processing-list2,
    .processing-list{
        margin-left: 0;
    }
    .processing-list-img2{
        width: 100%;
    }
    .footer-list-box ul li{
        width: 100%;
        display: block;
    }
    .footer-list-box ul li.footer-phone,
    .footer-list-box ul li.footer-fax{
        width: 50%;
        display: inline-block;
    }
    .contact-info-form li.button{
        display: block;
        margin: 0 auto;
        margin-bottom: 27px;
    }
    .contact-info-form li.verification-box{
        width: 100%;
    }
    .g-recaptcha> div{
        display: block;
        margin: 0 auto;
    }
    .contact-info-form li.button{
        width: 304px;
    }
}


@media only screen and (max-width: 320px){
    .header-logo-title-box{
        font-size: 14px;
    }
}