.contact_us_main {
    width: 1204px;
    margin: 110px auto 0;
}
.main_top_item {
    width: 33%;
    float: left;
    height: 280px;
    border: 1px solid #F1F1F1;
    border-left: none;
}
.main_top_item:first-child {
    background: #0062BE;
    position: relative;
    border: none;
}
.item1_bg {
    font-size: 60px;
    font-weight: bold;
    line-height: 84px;
    color: #FFFFFF;
    opacity: 0.1;
    text-align: center;
    margin-top: 109px;
}
.item1_con {
    position: absolute;
    top: 101px;
    left: calc(50% - 72px);
    text-align: center;
    font-size: 36px;
    font-weight: 500;
    line-height: 50px;
    color: #FFFFFF;
    opacity: 1;
}
.main_top_item img {
    width: 80px;
    display: block;
    height: 80px;
    margin: 67px auto 0;
}
.main_top_item p {
    text-align: center;
    color: #5C5C5C;
    line-height: 22px;
    font-size: 16px;
    font-weight: 500;
    margin-top: 9px;
}
.main_address {
    margin-top: 60px;
}
.address_item {
    width: 582px;
    height: 471px;
    float: left;
    margin-left: 40px;
}
.address_item:first-child {
    margin: 0;
}
.address_item img {
    display: block;
    width: 100%;
}
.address_item h3 {
    font-size: 24px;
    font-weight: 500;
    line-height: 40px;
    color: #2C2C2C;
    opacity: 1;
    margin: 20px 0;
}
.address_item p {
    font-size: 16px;
    font-weight: 400;
    line-height: 30px;
    color: #2C2C2C;
    opacity: 1;
}
.qq_item {
    float: left;
    width: 582px;
    height: 170px;
    margin-left: 40px;
}
.qq_item img {
    width: 100%;
}
.qq_item:nth-child(2n + 2) {
    margin: 0;
}
.qq_item p {
    font-size: 22px;
    font-weight: 500;
    line-height: 30px;
    color: #2C2C2C;
    opacity: 1;
    margin-top: 46px;
    border-bottom: 2px dashed;
    padding: 14px 0;
}
.qq_item ul li {
    float: left;
    color: #0062BE;
    width: 96px;
    height: 22px;
    font-size: 16px;
    font-weight: 500;
    line-height: 30px;
    text-decoration: underline;
    opacity: 1;
    margin-top: 17px;
    margin-left: 60px;
}
.qq_item ul li:nth-child(4n+1) {
    margin-left: 0;
}