body {
 
font-family: 'PingFangSC-Regular','helvetica neue',arial,'hiragino sans gb','microsoft yahei ui','microsoft yahei',sans-serif;
}
.center-wrap {
    width: 1152px;
    margin: 0 auto;
}
.clearfix {
    overflow: hidden;
}
.clearfix::after {
    content: '';
    display: block;
    clear: both;
    overflow: hidden;
}
.db {
    display: block;
}
.dib {
    display: inline-block;
}
.tac {
    text-align: center;
}
input,button{
    outline: none;
    border: none;
}

a{
    margin:0;
}