.product-introduce{
    height: 800px;
    position: relative;
    padding: 30px;
}
.product_pc{
    display: block;
}
.product_wrap{
    display: none;
}
.product-introduce .product-introduce-bgimg{
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
}
.product-introduce .product-introduce-txt{
    font-size: 65px;
    margin: 0;
}
.electric-air-compressor{
    text-align: center;
    padding: 50px 0;
}
.compressor-title{
    font-size: 22px;
    position: relative;
    margin-bottom: 50px;
}
.compressor-title:after{
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: #ff0000;
    left: 50%;
    margin-left: -30px;
    bottom: -10px;
    position: absolute;
}
.compressor-performance{
    font-size: 50px;
}
.compressor-msg{
    font-size: 18px;
    margin-top: 30px;
    line-height: 22px;
    margin-bottom: 40px;
}
.compressor-fred{
    font-size: 36px;
    color: #ff0000;
    margin-bottom: 0;
}
.compressor-txtn2{
    margin-top: 50px;
    font-size: 28px;
}
.modal-dialog-lpk{
    width: 680px;
    margin: auto;
}
.modal-dialog-lpk .modal-dialog-wz{
    width: 340px;
    height: 50px;
    line-height: 50px;
    border: 1px solid #FFFFFF;
    font-size: 22px;
    margin-top: 20px;
}
.modal-dialog-lpk .modal-dialog-img{
    width: 100%;
}


.subsidiary{
    margin-top: 30px;
}
.subsidiary .subsidiary-title{
    height: 38px;
    border: 1px solid #FFFFFF;
    position: relative;
    text-align: center;
    line-height: 38px;
    font-size: 16px;
    background-color: #666666;
    border-radius: 4px;
}
.subsidiary-region{
    margin-bottom: 0;
}
.dropdown{
    width: 38px;
    height: 37px;
    position: absolute;
    top: 0;
    right: 0;
    border-left: 1px solid #FFFFFF;
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    cursor: pointer;
}
.dropdown .icon{
    width: 12px;
    height: 12px;
    border-top: 1px solid #FFFFFF;
    border-right: 1px solid #FFFFFF;
}
.dropdown .icon.down{
    transform: rotate(135deg);
    -webkit-transform: rotate(135deg);
    margin-top: -8px;
}
.dropdown .icon.up{
    transform: rotate(-45deg);
    -webkit-transform: rotate(-45deg);
    margin-top: 8px;
}
.flexbox{
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
}
.flex{
    display: flex;
    display: -webkit-flex;
}
.evolution-item{
    background-color: #333333;
    border-top: 1px solid #666666;
}
.evolution-unit{
    width: 295px;
}
.evolution-left{
    width: 220px;
    text-align: center;
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
}
.evolution-unit-name{
    padding: 4px 0;
    text-align: center;
    border-top: 1px solid #666666;
    margin-bottom: 0;
    width: 100%;
    flex: 1;
    -webkit-flex: 1;
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    flex-direction: column;
    -webkit-flex-direction: column;
}
.evolution-unit-name p{
    margin-bottom: 0;
}
.evolution-unit-name:first-child{
    border-top: none;
}
.evolution-spec{
    flex: 1;
    -webkit-flex: 1;
    background-color: #FFFFFF;
    color: #000000;
    font-weight: bold;
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    flex-direction: column;
    -webkit-flex-direction: column;
}

.characteristics-and-advantages{
    margin-top: 60px;
    position: relative;
    text-align: center;
}
.advantages-head-img{
    width: 100%;
    display: block;
    margin-bottom: 20px;
}
.characteristics-and-advantages .bgimg{
    position: absolute;
    left: 0;
    top: 15px;
    z-index: -1;
    width: 900px;
    height: 900px;
}
.characteristics-headline{
    font-size: 50px;
    margin-bottom: 30px;
}
.characteristics-content{
    font-size: 20px;
    margin-bottom: 80px;
    line-height: 30px;
}
.main-lasttwo-btn{
    width: 460px;
    height: 40px;
    background-color: #ff0000;
    text-align: center;
    line-height: 40px;
    color: #FFFFFF;
    border: 1px solid #FFFFFF;
    border-radius: 4px;
    margin:0 auto 0;
    cursor: pointer;
    display: block;
}
.main-lasttwo-btn:hover{
    color: #FFFFFF;
}
.letgo-top{
    text-align: center;
    padding-top: 60px;
}
.letgo-top a{
    display: block;
    color: #FFFFFF;
    font-size: 16px;
}
.letgo-top a:last-child{
    margin-bottom: 15px;
    margin-top:10px;
}
.ispc{
    display: block;
}
.iswrap{
    display: none;
}
@media screen and (max-width: 1919px){

}
@media screen and (max-width: 1679px){

}
@media screen and (max-width: 1440px){
    /*.electric-air-compressor .container,.characteristics-and-advantages .container{*/
    /*    width: 880px;*/
    /*}*/
    .container{
        width: 880px;
    }
}
@media screen and (max-width: 1365px){

}
@media screen and (max-width: 1279px){

}
@media screen and (max-width: 1023px){
    .container{
        width: 750px;
    }
}
@media screen and (max-width: 768px) {
    .product_pc{
        display: none;
    }
    .product_wrap{
        display: block;
    }
    .letgo-top{
        padding-top: 30px;
    }
    .letgo-top a{
        font-size: 14px;
    }
    .container{
        width: 100%;
    }

    .product-introduce{
        height: 200px;
        padding: 10px;
    }
    .product-introduce .product-introduce-txt{
        font-size: 20px;
    }
    .electric-air-compressor{
        padding: 30px 0;
        text-align: left;
    }
    .compressor-title{
        font-size: 14px;
        margin-bottom: 30px;
        text-align: left;
    }
    .compressor-title:after{
        content: '';
        display: block;
        width: 30px;
        height: 2px;
        background-color: #ff0000;
        bottom: -5px;
        left: 6px;
        position: absolute;
        margin-left: 0;
    }
    .compressor-performance{
        font-size: 25px;
    }
    .compressor-msg{
        font-size: 16px;
        margin-top: 20px;
        line-height: 28px;
        margin-bottom: 20px;
    }
    .compressor-fred{
        font-size: 18px;
        color: #ff0000;
        margin-bottom: 0;
        margin-top: 8px;
    }
    .compressor-txtn2{
        margin-top: 25px;
        font-size: 16px;
    }
    .modal-dialog-lpk{
        width: 100%;
    }
    .modal-dialog-lpk .modal-dialog-wz{
        width: 140px;
        height: 24px;
        line-height: 24px;
        border: 1px solid #FFFFFF;
        font-size: 12px;
        margin-top: 10px;
        text-align: center;
    }
    .evolution-unit{
        flex: 1;
        -webkit-flex: 1;
    }
    .evolution-left{
        width: 70px;
    }
    .evolution-unit-name{
        padding: 2px 0;
    }

    .characteristics-and-advantages{
        margin-top: 30px;
        text-align: left;
    }
    .advantages-head-img{
        width: 100%;
        display: block;
        margin-bottom: 10px;
    }
    .characteristics-and-advantages .bgimg{
        width: 300px;
        height: 300px;
        bottom: -30px;
        top: auto;
    }
    .characteristics-headline{
        font-size: 24px;
        margin-bottom: 20px;
    }
    .characteristics-content{
        font-size: 16px;
        margin-bottom: 50px;
        line-height: 24px;
    }
    .main-lasttwo-btn{
        width: 90%;
        height: 30px;
        line-height: 30px;
    }
}