.footer {
    width: 100%;
    height: 64px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.footer .main {
    display: flex;
    flex-direction: column;
}
.footer .main .protocol{
    display: flex;
    gap: 20px;
    align-items: center;
}
.footer .main .protocol a {
    text-decoration: none;
    color: #333;
}
.footer .main .protocol a:hover {
    text-decoration: underline;
    color: blue;
}
.footer .main .copyright {
    display: flex;
    align-items: center;
    justify-content: center;
}