@media (min-width: 1200px) {
    /* banner */
    .banner_wrap{
        height: 324px;
        position: relative;
    }
    .banner_wrap img{
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: revert;
        z-index: 1;
    }
    .banner_box{
        position: absolute;
        z-index: 2;
        width: 100%;
    }
    .banner_con{
        margin: 0 auto;
    }
    .banner_con p{
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
    .banner_con span{
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        color: #7C8A82;
    }
    .banner_con span:nth-child(2){
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        line-height: 20px;
        color: #FFFFFF;
        display: inline-block;
        border-bottom: 1px solid #FFFFFF;
    }
    .banner_con h2{
        font-size: 60px;
        font-family: Avenir;
        font-weight: 500;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
     /* con_three */
     .con_three{
         padding-top: 30px;
         padding-bottom: 35px;
     }
     .con_three_con{
         padding: 0;
     }
     .con_three_title{
         margin-bottom: 55px;
     }
     .big_img{
         width: 570px;
         height: 274px;
         background: #FFFFFF;
         border: 1px solid #E5EBE8;
         box-sizing: border-box;
         text-align: center;
         line-height: 274px;
         margin-bottom: 35px;
     }
     .big_img img{
         width: 509px;
         height: 130px;
     }
     .small_img{
         width: 270px;
         height: 120px;
         background: #FFFFFF;
         border: 1px solid #E5EBE8;
         line-height: 120px;
         text-align: center;
         float: left;
         margin-bottom: 35px;
     }
     .small_img:nth-child(2){
         /* margin-left: 30px; */
     }
     .small_img img{
         width: 260px;
         height: 96px;
     }
    .marginlef30{
        margin-left: 30px;
    }
    .marginlef20{
        margin-left: 15px;
    }
    .bottom_small .small_img{
        margin-right: 30px;
    }
    .bottom_small .small_img:nth-child(4n){
        margin-right: 0;
        margin-left: -6px;
    }
 }
 @media (min-width: 1023px) and (max-width: 1199px){
    /* banner */
    .banner_wrap{
        height: 324px;
        position: relative;
    }
    .banner_wrap img{
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: revert;
        z-index: 1;
    }
    .banner_box{
        position: absolute;
        z-index: 2;
        width: 100%;
    }
    .banner_con{
        margin: 0 auto;
    }
    .banner_con p{
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
    .banner_con span{
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        color: #7C8A82;
    }
    .banner_con span:nth-child(2){
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        line-height: 20px;
        color: #FFFFFF;
        display: inline-block;
        border-bottom: 1px solid #FFFFFF;
    }
    .banner_con h2{
        font-size: 60px;
        font-family: Avenir;
        font-weight: 500;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
    /* con_three */
    .con_three{
        padding-top: 30px;
        padding-bottom: 35px;
    }
    .con_three_con{
        padding: 0;
    }
    .con_three_title{
        margin-bottom: 55px;
    }
    .big_img{
        width: 570px;
        height: 274px;
        background: #FFFFFF;
        border: 1px solid #E5EBE8;
        box-sizing: border-box;
        text-align: center;
        line-height: 274px;
        margin: 0 auto 35px;
    }
    .big_img img{
        width: 509px;
        height: 130px;
    }
    .small_img_box {
        /* margin-left: 88px; */
        margin: 0 auto;
        padding: 0;
    }
    .bottom_small{
        display: flex;
        justify-content: space-around;
        flex-wrap: wrap;
    }
    .small_img{
        width: 270px;
        height: 120px;
        background: #FFFFFF;
        border: 1px solid #E5EBE8;
        line-height: 120px;
        text-align: center;
        /* float: left;
        margin-bottom: 35px;
        margin-right: 30px; */
        margin: 0 auto 30px;
    }
    .small_img img{
        width: 260px;
        height: 96px;
    }
    .marginr60{
        margin-right: 30px;
    }
 }
 @media (min-width: 768px) and (max-width: 1023px){
      /* banner */
    .banner_wrap{
        height: 324px;
        position: relative;
    }
    .banner_wrap img{
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: revert;
        z-index: 1;
    }
    .banner_box{
        position: absolute;
        z-index: 2;
        width: 100%;
    }
    .banner_con{
        margin: 0 auto;
    }
    .banner_con p{
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
    .banner_con span{
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        color: #7C8A82;
    }
    .banner_con span:nth-child(2){
        font-size: 17px;
        font-family: Arial;
        font-weight: 400;
        line-height: 20px;
        color: #FFFFFF;
        display: inline-block;
        border-bottom: 1px solid #FFFFFF;
    }
    .banner_con h2{
        font-size: 60px;
        font-family: Avenir;
        font-weight: 500;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
      /* con_three */
      .con_three{
          padding-top: 30px;
          padding-bottom: 35px;
      }
      .con_three_con{
          padding: 0;
      }
      .con_three_title{
          margin-bottom: 55px;
      }
      .big_img{
          width: 570px;
          height: 274px;
          background: #FFFFFF;
          border: 1px solid #E5EBE8;
          box-sizing: border-box;
          text-align: center;
          line-height: 274px;
          margin: 0 auto 35px;
      }
      .big_img img{
          width: 509px;
          height: 130px;
      }
      .small_img_box {
          margin-left: 88px;
          padding: 0;
      }
      .small_img{
          width: 270px;
          height: 120px;
          background: #FFFFFF;
          border: 1px solid #E5EBE8;
          line-height: 120px;
          text-align: center;
          float: left;
          margin-bottom: 35px;
          margin-right: 30px;
      }
      .small_img img{
          width: 260px;
          height: 96px;
      }
      .marginr60{
          margin-right: 30px;
      }
 }
 @media screen and (max-width:769px) {
    /* banner */
    .banner_wrap{
        height: 200px;
        position: relative;
    }
    .banner_wrap img{
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: revert;
        z-index: 1;
    }
    .banner_box{
        position: absolute;
        z-index: 2;
        width: 100%;
    }
    .banner_con{
        margin: 0 auto;
    }
    .banner_con p{
        font-size: 14px;
        font-family: Arial;
        font-weight: 400;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
    .banner_con span{
        font-size: 14px;
        font-family: Arial;
        font-weight: 400;
        color: #7C8A82;
    }
    .banner_con span:nth-child(2){
        font-size: 14px;
        font-family: Arial;
        font-weight: 400;
        line-height: 20px;
        color: #FFFFFF;
        display: inline-block;
        border-bottom: 1px solid #FFFFFF;
    }
    .banner_con h2{
        font-size: 30px;
        font-family: Avenir;
        font-weight: 500;
        color: #FFFFFF;
        margin: 110px 0 0 0;
    }
 
     /* con_three */
     .con_three{
        padding-top: 30px;
        padding-bottom: 35px;
    }
    .con_three_con{
        padding: 0;
    }
    .con_three_title{
        margin-bottom: 55px;
    }
    .big_img{
        /* width: 570px; */
        height: 124px;
        background: #FFFFFF;
        border: 1px solid #E5EBE8;
        box-sizing: border-box;
        text-align: center;
        line-height: 124px;
        margin: 0 auto 35px;
        overflow: hidden;
    }
    .big_img img{
        width: 100%;
        height: 100%;
    }
    .small_img_box {
        /* margin-left: 88px; */
        padding: 0;
        display: flex;
        justify-content: space-around;
        flex-wrap: wrap;
    }
    .small_img{
        width: 155px;
        height: 60px;
        background: #FFFFFF;
        border: 1px solid #E5EBE8;
        line-height: 60px;
        text-align: center;
        /* float: left; */
        margin-bottom: 35px;
        /* margin-right: 30px; */
    }
    .small_img img{
        width: 100%;
        height: 100;
    }
    .marginr60{
        /* margin-right: 30px; */
    }
    
 }