.main-logo {
    margin-bottom: 30px;
    margin-top: 80px;
}

.main-logo a {
    display: block;
    text-align: center;
    width: 280px;
    margin: auto;
}

.main-logo img {
    max-width: 100%;
}

.site-tip{
padding-top: 100px; text-align: center;color: #888;font-size:10px;
}
.site-tip a{
    font-size: 14px;
}

a {
text-decoration: none;
color: #409EFF;
}