.sidebar {
    padding-left: 20px;
}
.sidebar-box {
    background-color: #fff;
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    padding: 20px;
}
.sidebar-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
    color: #333;
}
.recommend-item {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px dashed #eee;
}
.recommend-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}
.recommend-item a {
    color: #333;
}
.recommend-item a:hover {
    color: #1E9FFF;
}