*{margin:0;padding:0;box-sizing: border-box;}
img {max-width: 100%}

body {
    text-align: center;
    font-size: 16px;
    font-family: PingFang SC,Microsoft Yahei,Lato,Helvetica Neue,Arial,SimSun,Helvetica,STHeiTi,Roboto Regular,Roboto,Droid Sans,sans-serif;
    color:#333;
}

a {
    color: #666;
    text-decoration: none;
}

li {
    list-style: none;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    text-align: center;
}

.container h2 {
    font-size: 100%;
    font-weight: 400;
}

.footer {
    padding: 42px;
    line-height: 36px;
    color: #888;
    background: #f3f4f6;
}

.content {
    margin: 0 auto;
}
.content h2.title{
    padding: 120px 0 50px;
    font-size: 42px;
}

.service-list {
    max-width: 1600px;
    overflow: hidden;
    margin: 0 auto;
    padding-bottom: 120px;
}

.service-list .item {
    float: left;
    width: 50%;
    padding: 5%;
}