.footer-frame {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 25px;
    background: white;
    z-index: 100;
}

.beian {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: center;
    font-size: 12px;
    padding: 5px 0;
    background-color: white;
}

.beian a {
    color: #666;
    text-decoration: none;
}

/* 为footer预留空间 */
.container {
    padding-bottom: 40px;
}