@media ( min-width : 1200px) {
    .w75{
        width: 80%;
        margin: 0 auto;
    }

    /*业务范围*/
    .core_k{
        padding-bottom: 120px;
    }
    .core_md3{
        width: 100%;
    }

    .core_m{
        width: 20%;
        position: absolute;
    }

    .core_m:nth-child(1),.core_m:nth-child(3),.core_m:nth-child(5){
        right: auto;
        left: 0;
    }
    .core_m:nth-child(3),.core_m:nth-child(4){
        top: 33%;
    }
    .core_m:nth-child(5),.core_m:nth-child(6){
        top: 66%;
    }
    .core_m:nth-child(2),.core_m:nth-child(4),.core_m:nth-child(6){
        left: auto;
        right: 0;
    }

    .core_m:nth-child(even) .core_m1{
        text-align: left;
    }
    .core_md6{
        width: 50%;
        margin: 0 auto;
    }

    /*案例详情*/
    .case_page p:first-child{
        float: left;
    }
    .case_page p:last-child{
        float: right;
    }
    /*联系*/
    .addr{
        position: absolute;
        width: 34%;
        right: 2%;
        top:0;
        bottom: 0;
        background: url(../images/ny_mc2.png) repeat;
        padding-top: 8%;
    }
}
@media (max-width : 1660px) and (min-width : 1366px){
    .core_m1{
        padding-top: 0;
    }
    .core_m1 span{
        font-size: 16px;
    }
    .core_m1 em{
        font-size: 12px;
        line-height: 20px;
    }
}
@media (max-width : 1199px) and  (min-width : 992px){
}

@media (max-width : 1200px) {
    /*业务范围*/
    .core_k{
        padding-bottom: 50px;
    }
    .core_rfa{
        display: none;
    }
    .pad_cre{
        display: block;
    }
}
/*pad*/
@media (max-width : 1199px) and (min-width : 768px){
  /*nav */
  .nav a{
    width: 100px;
  }
  /*业务范围*/
  .in_tit {
    padding-top: 40px;
    padding-bottom: 30px;
   }
    /*优势*/
   .si_d1 span{
    font-size: 13px;
   }

   /*footer*/
   .footer_k{
        background: url(../images/footer_bg.png) top right no-repeat;
   }
    .fot_top{
        display: none;
    }
    .fot_bt1{
        background: none;
        text-align: center;
        min-height: auto;
        padding: 0 0 10px;
    }

    .footer_k{
        padding-bottom: 20px;
    }

    .fot_bot .col-md-4:nth-child(2) .fot_bt1,.fot_bot .col-md-4:nth-child(3) .fot_bt1{
        padding-left: 0px;
    }

    .fot_bt1 p,.fot_bt1 span{
        display: inline-block;
    }
    /*案例详情*/
    .ca_deils {
        padding: 85px 0 75px;
        font-size: 14px;
        color: #999999;
        line-height: 32px;
    }
    .consult_a{
        margin: 0 auto 35px;
    }
    .case_page p:first-child{
        float: left;
    }
    .case_page p:last-child{
        float: right;
    }

    /*关于*/
    .us1_tit{
        padding-top: 30px;
    }
    .us1_tit h2{
        font-size: 28px;
    }
    .us1_tit h3{
        font-size: 24px;
    }
    .us1_tit p{
        font-size: 14px;
        padding: 20px 0 40px;
    }
    /*联系*/
    .addr>div{
        float: left;
    }
    .addr>div:nth-child(1),.addr>div:nth-child(2){
        padding-top: 20px;
        width: 50%;
    }
    /*百科*/
    .bak_r {
        padding-top: 30px;
    }
    .bak_r a {
        font-size: 24px;
        color: #333333;
        line-height: 38px;
    }
    .ny_site h3{
        font-size: 28px;
    }
    .ny_site{
        padding: 100px 20px 315px;
    }

    /*服务列表*/
    .fw_lr a {
        font-size: 22px;
    }
    .fw_lr p {
        font-size: 15px;
        color: #ffffff;
        font-family: Arial;
    }


    .in_tit span{
        font-size: 30px;
    }
    .case_ho h3{
        font-size: 20px;
    }
    .case_h3{
        padding-top: 35px;
    }

    .but_help{
        padding: 30px 0 50px;
    }
}

@media (max-width : 991px){
    
}
@media (max-width : 991px) and (min-width : 768px){
   /*nav*/
   .nav a{
    width: 70px;
   }

   .site_mk>img{
    top: 27%;
   }
}
/*手机*/
@media (max-width : 767px) {
    /*nav*/
    .nav_k>em{
        width: 44px;
        height: 34px;
        background: url(../images/menu.png) no-repeat;
        display: block;
        position: absolute;
        top: 32px;
        right: 15px;
        cursor: pointer;
    }
    .share,.cust_a{
        display: none!important;
    }
    .nav_bg{
        height: auto;
        background: transparent!important;
    }
    .nav{
        width: 100%;
        position: absolute;
        top: 100px;
        left: 0;
        background: url(../images/nav_mc1.png) repeat;
        display: none;
        padding: 15px 0;
    }
    .nav span{
        display: none;
    }
    .nav a{
        float: none;
        width: 100%;
        line-height: 36px;
        color: #000;
    }
    .nav a.nav_on,.nav a:hover{
        background: url(../images/nav_line1.png) bottom center no-repeat;
        color: #bf9759;
    }
    /*banner*/
    .index_banner .item a.ban_img0{
        display: none;
    }
    .index_banner .item a.ban_img1{
        display: block;
    }

    .index_banner .owl-theme .owl-controls .owl-buttons div{
        position: absolute;
        width: 30px;
        height: 30px;
        top: 50%;
        margin-top: -15px;
        border-radius: 0;
        margin: 0;
        opacity: 1;
    }
    /*业务范围*/
    .in_tit {
        padding-top: 30px;
        padding-bottom: 20px;
    }
    .in_tit span{
        font-size: 28px;
        line-height: 38px;
    }

    /*优势*/
    .in_site_k{
        background: url(../images/bg3.png) top left no-repeat;
    }
    
    .site_mk{
        margin-top: 45px;
    }
    .owl-carousel .owl-item:nth-child(even) .si_d1{
        margin-top: 173px;
    }

    /*footer*/
    .fot_top{
        display: none;
    }
    .fot_bt1{
        background: none;
        text-align: center;
        min-height: auto;
        padding: 0 0 10px;
    }

    .footer_k{
        padding-bottom: 20px;
    }

    .fot_bot .col-md-4:nth-child(2) .fot_bt1,.fot_bot .col-md-4:nth-child(3) .fot_bt1{
        padding-left: 0px;
    }
    /*案例*/
    .other_banner img.other_img2{
        display: block;
    }
    .other_banner img.other_img1{
        display: none;
    }

    .ca_deils{
        padding: 35px 0 35px;
    }
    .ca_ils {
        border-bottom: 1px dashed #ddd;
        padding: 25px 0;
    }
    .ils_logo{
        display: none;
    }
    .ils_dr{
        width: 100%;
    }
    .consult_a{
        margin: 0 auto 30px;
    }
    .case_page{
        padding-top: 15px;
    }
    .case_page p{
        line-height: 30px;
    }
    
    #tiles li{
        margin: 0 auto;
        left: 50%!important;
        margin-left: -160px!important;
        padding: 0 0 15px;
    }

    .case_h3{
        padding-top: 25px;
    }
    .case_ho h3{
        font-size: 20px;
    }

    /*关于*/
    .us1_tit{
        padding-top: 30px;
    }
    .us1_tit h2{
        font-size: 28px;
    }
    .us1_tit h3{
        font-size: 20px;
    }
    .us1_tit p{
        font-size: 13px;
        padding: 20px 0 40px;
    }

    .slick_fa{
        display: none;
    }
    .con_us1{
        padding-bottom: 20px;
    }

    .message_bg{
        padding: 15px 0;
    }
    .ness_a{
        margin: 15px auto;
    }
    .mess_input,.mess_text{
        margin-top: 15px;
    }
    .addr>div{
        margin-bottom: 15px;
    }
    .addr>div:first-child{
        margin-top: 10px;
    }
    .addr p{
        padding-left: 0;
    }
    /*百科*/
    .bak_r {
        padding-top: 10px;
    }
    .bak_r a {
        font-size: 26px;
        color: #333333;
         line-height: 36px; 
    }
    .case_d1{
        padding-bottom: 40px;
    }
    .case_d1:nth-child(odd) .bak_r{
        padding-left: 0;
    }
    .ny_site h3{
        font-size: 26px;
        line-height: 56px;
    }
    .ny_site{
        padding: 100px 20px 215px;
    }
    .fw{
        padding-bottom: 30px;
    }
    .fw_k{
        margin: -30px auto 0;
        width: 90%;
    }
    .fw_l img{
        display: none;
    }
    .fw_lr{
        margin-left: 20px;
    }
    .fw_lr a{
        font-size: 20px;
    }
    .fw_lr p{
        font-size: 16px;
    }


    .but_help{
        padding: 30px 15px 50px;
    }
    .but_help h3{
        font-size: 24px;
        line-height: 34px;
        padding-bottom: 10px;
    }
}
@media (width : 414px){
    .clear_a{
        left: 15px;
    }
}
@media (max-width : 320px){
    .core_p_a1 span{
        font-size: 16px;
        line-height: 28px;
        margin-top: 3px;
        margin-bottom: 3px;
    }
    .core_p_a1 em{
        font-size: 14px;
        line-height: 20px;
    }
    .us1_tit h3{
        padding-top: 10px;
        font-size: 20px;
        line-height: 30px;
    }
    .fw_lr{
        margin-left: 15px;
    }
    .fw_lr p{
        font-size: 14px;
    }
}
/*特殊情况下*/
@media (width : 1024px) {
    .bak_r {
        padding-top: 80px;
    }
}

@media (width : 1920px) {
}