* {
    padding: 0;
    margin: 0 ;
    list-style-type: none;
}
body {
    background: #f9f9f9;
    font-size: 14px;
    color: #333333;
}
.main{
    width: 100%;
    margin-top: 89px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 10px;
}
.fontweight{
    font-weight: bold;
}
.main-txt span{
    font-weight: bold;
}
.main-title{
    text-align: center;
    margin-top: 150px;
    font-size: 16px;
    font-weight: bold;
}
.part{
    margin-top: 40px;
}
.part .main-txt{
    margin-top: 20px;
}
@media screen and (max-width: 768px){
    .main {
        margin-top: 50px;
    }
}