.mainbox {
    margin: 0 auto;
    max-width: 1400px;
}

.serviceboxs {
    padding-top: 70px;
    padding-bottom: 90px;
}

.onlinetit {
    text-align: center;
}

.onlinetit h2 {
    font-size: 40px;
    color: #333333;
    font-weight: normal;
    margin-bottom: 10px;
}
.onlinetit p {
    font-size: 16px;
}

.onlineboxs {
    margin-top: 70px;
}

.onlineboxs>ul {
    width: calc(100% + 60px);
    margin-left: -60px;
}
.onlineboxs>ul > li {
    width: calc(50% - 60px);
    float: left;
    margin-left: 60px;
    margin-bottom: 40px;
}
.onlineboxs>ul > li p {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}
.onlineboxs>ul > li p em {
    color: #f00;
    padding-right: 10px;
}
.onlineboxs>ul > li input[type="text"] {
    height: 58px;
    border: 1px solid #ebebeb;
    background: #f7f7f7;
    padding: 0px 15px;
    font-size: 14px;
    width: 100%;
}
.onlineboxs li textarea {
    height: 90px;
    border: 1px solid #ebebeb;
    background: #f7f7f7;
    padding: 15px;
    font-size: 14px;
    width: 100%;
    outline: none;
    resize: none;
    -webkit-appearance: none;
}
.onlineboxs>ul > li input[type="submit"] {
    width: 200px;
    height: 60px;
    background: #0a408a;
    color: #fff;
    border-radius: 5px;
    border: none;
    font-size: 18px;
}
.onlineboxs >ul > li:nth-child(5) {
    width: calc(100% - 60px);
}
.erduan {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-content: center;
    align-items: center;
}
.zuo {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-content: center;
    align-items: center;
}
.yaznsmc {
    width: calc(100% - 220px);
}
.yanzmimg {
    width: 140px;
    height: 60px;
    margin-left: 10px;
}
.onlineboxs >ul > li:nth-child(6) {
    width: calc(100% - 60px);
}
@media screen and (max-width: 1440px){
    .mainbox {
        padding-left: 50px;
        padding-right: 50px;
    }
}


@media screen and (max-width: 1024px){
    .mainbox {
        padding-left: 20px;
        padding-right: 20px;
    }
}

@media screen and (max-width: 768px){
    .onlineboxs>ul > li input[type="submit"] {
        width: 150px;
    }
    .yaznsmc {
        width: calc(100% - 150px);
    }
}

@media screen and (max-width: 680px){
    .serviceboxs {
        padding-top: 30px;
        padding-bottom: 50px;
    }
    .onlinetit h2 {
        font-size: 24px;
    }
    .onlinetit p {
        font-size: 14px;
    }
    .onlineboxs {
        margin-top: 20px;
    }
    .onlineboxs>ul > li {
        width: calc(100% - 60px);
        margin-bottom: 10px;
    }
    .waponline.onlineboxs>ul > li {
        margin-bottom: 20px;
    }
    .onlineboxs>ul > li p {
        margin-bottom: 5px;
    }
    .waponline.onlineboxs>ul > li input[type="text"] {
        height: 45px;
    }
    .onlineboxs li textarea {
        height: 50px;
    }
    .onlineboxs>ul > li input[type="submit"] {
        margin: 0 auto;
        height: 45px;
        display: block;
        margin-top: 20px;
    }
    .onlineboxs>ul > li>.erduan {
        display: block;
    }
    .yaznsmc {
        width: 100%;
    }
    .yanzmimg {
        width: 80px;
        height: 38px;
    }
}