.banner img{
    display: block;
    width: 100%;
    height: auto;
}

.contact-item{
    width: 1020px;
    margin-top:80px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 166px;
    background-image: url('../images/contact-us/contact-icon.png');
    background-repeat: no-repeat;
    font-size: 40px;
    line-height: 1;
}
.contact-item .value{
    margin-top: 20px;
    font-size: 40px;
    font-weight: normal;
}
.phone{
    background-position: 0px 6px;
    padding-left: 166px;
    color: #000;
    
}
.phone .phone-txt1,
.phone .phone-txt2{
    font-size: 38px;
}
.phone .phone-txt2{
    margin-left: 93px;
}

.qq{
    background-position: 0px -178px;
}

.qq .value{
    font-size: 38px;
}

.email{
    background-position: 0px -348px;
}
.email .email-txt1,
.email .email-txt2{
    font-size: 38px;
} 
.email .email-txt2{
    margin-left: 40px;
}
.official-account{
    background-position: 0px -527px;
}

.address{
    background-position: 0px -716px;
}

.map{
    margin-top: 168px;
    margin-bottom: 77px;
    width: 1213px;
    height: 738px;
    margin-left: auto;
    margin-right: auto;
}