* {
    padding: 0;
    margin: 0;
}

body {
    font-family: Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,"\5FAE\8F6F\96C5\9ED1",Arial,sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: #f5f5f5;
}

.head {
    width: 100%;
    height: 74px;
    line-height: 74px;
    background: #fff;
    position: fixed;
    top: 0;
    z-index: 999;
    color: #333;
    box-shadow: 0 0 5px #ddd;
    padding-left: 50px;
    font-size: 18px;
    font-weight: 600;
    box-sizing: border-box;
}

.logo {
    background: url(./logo.jpg) no-repeat center;
    width: 74px;
    height: 74px;
}

.banner {
    width: 100%;
}

.content {
    max-width: 1000px;
    margin: 50px auto;
    line-height: 2;
    text-indent: 2em;
    font-size: 16px;
}

.footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: #141a25;
    color: #fff;
    font-size: 14px;
    overflow: hidden;
    text-align: center;
    padding: 20px 0;
}

.footer a {
    color: #fff;
    text-decoration: none;
}