.P-link{
    color: #3477b1;
}
.col-md-12 ol li a:hover{
    color: #900b09;
    text-decoration: none;
}
.P-list{
    letter-spacing: 1px;
    line-height: 35px;
}
.banner{
    background-image: url("https://s2.loli.net/2021/12/23/SJ8DVAfuwhOvd9p.jpg");
    background-size: auto;
    height: 200px;
    width: 100%;
}