.content-bg {
    background-size: cover;
}
.field-top {
    margin-top: 76px;
}
.field-logo {
    margin-bottom: 86px;
}

/* address */
.address {
    display: flex;
    justify-content: space-between;
}
.addess-city {
    display: flex;
}
.city {
    font-size: 20px;
    /*font-family: syst;*/
    font-weight: bold;
    color: #222222;
    margin-right: 70px;
}
.addess-city > li:last-child {
    margin-right: 0;
}
.change {
    font-size: 36px;
    color: #B60004;
    letter-spacing: 4px;
    margin-top: -23px;
}
.city > p {
    width: 30px;
    height: 4px;
    background: #B60004;
    margin: 8px auto 0;
    display: none;
}
.address-bottom {
    margin-top: 62px;
}
.address-copy {
    margin-bottom: 30px;
}
.address-copy:last-child {
    margin-bottom: 0;
}
.address-copy > p {
    font-size: 16px;
    /*font-family: syst;*/
    font-weight: bold;
    color: #999999;
}
.address-copy > p > img {
    width: 16px;
    height: 16px;
    margin-top: -4px;
    margin-right: 10px;
}
.address-copy > h1 {
    font-size: 18px;
    /*font-family: SourceHanSansCN-Regular, SourceHanSansCN;*/
    font-weight: 400;
    color: #222222;   
    margin: 25px 0 9px;
    padding-left: 35px;
}
.address-copy > img {
    width: 484px;
    height: 16px;
}
.address-img {
    padding-top: 90px;
}
.address-img > img {
    width: 708px;
    height: 347px;
}

/* business */
.business {
    height: 398px;
    background: url(../image/contact/contact-business.jpg) no-repeat center center;
    background-size: cover;
    margin: 113px 0 100px;
    padding-top: 113px;
}
.business h1 {
    font-size: 42px;
    /*font-family: syst;*/
    font-weight: bold;
    color: #222222;
    letter-spacing: 2px;
}
.bus-bottom {
    width: 191px;
    height: 52px;
    background: #B60004;
    line-height: 52px;
    text-align: center;
    font-size: 18px;
    /*font-family: SourceHanSansCN-Normal, SourceHanSansCN;*/
    font-weight: 400;
    color: #FFFFFF;
    margin-top: 50px;
}
.bus-bottom > img {
    width: 19px;
    height: 18px;
    margin-right: 10px;
}

@media screen and (min-width: 768px) {
    .city:hover {
        cursor:pointer;
    }
}

/* app */
@media screen and (max-width: 768px) {
    /* lian xi wo men */
    .content-bg {
        background: url(../image/contact/contact-bg-app.jpg) no-repeat center center;
        background-size: cover;
    }

    /* gong si fen bu */
    .field-top {
        margin-top: 1.87rem;
    }
    .field-logo {
        margin-bottom: 1.17rem;
    }
    .address {
        flex-direction: column;
    }
    .addess-city {
        justify-content: center;
    }
    .city {
        font-size: 0.43rem;
        margin-right: 0.8rem;
    }
    .city > p {
        width: 0.27rem;
        height: 0.05rem;
        margin: 0.16rem auto 0;
    }
    .change {
        font-size: 0.53rem;
        letter-spacing: 2px;
        margin-top: -0.11rem;
    }
    .address-bottom {
        margin-top: 0.8rem;
    }
    .address-copy {
        margin-bottom: 0.53rem;
    }
    .address-copy > p {
        font-size: 0.29rem;
    }
    .address-copy > p > img {
        width: 0.29rem;
        height: 0.29rem;
        margin-right: 0.13rem;
    }
    .address-copy > h1 {
        font-size: 0.35rem;
        margin: 0.53rem 0 0.24rem;
        padding-left: 0.45rem;
        word-break: break-word;
    }
    .address-copy > img {
        width: 100%;
        height: 0.32rem;
    }
    .address-img {
        padding-top: 1.28rem;
    }
    .address-img > img {
        width: 100%;
        height: 4.93rem;
    }

    /* tou di jian li */
    .business {
        height: 10rem;
        background: url(../image/contact/contact-business-app.jpg) no-repeat center center;
        background-size: cover;
        margin: 1.07rem 0 1.6rem;
        padding-top: 2.37rem;
    }
    .business h1 {
        font-size: 0.59rem;
        text-align: center;
        letter-spacing: 1px;
    }
    .bus-bottom {
        width: 3.71rem;
        height: 1.09rem;
        line-height: 1.09rem;
        font-size: 0.32rem;
        margin: 0.8rem auto 0;
    }
    .bus-bottom > img {
        width: 0.37rem;
        height: 0.37rem;
        margin-right: 0.21rem;
        margin-top: -0.05rem;
    }
}