* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    overflow-x: hidden;
    font-family: 'Microsoft Yahei', 'PingFangSC-Regular', sans-serif;
    color: #333;
}
ul {
    list-style: none;
}
a {
    text-decoration: none;
}