/* 自定义样式 */
body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
}

.card {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

footer {
    margin-top: 2rem;
}

.list-group-item.active {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.list-group-item.active a {
    color: white !important;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.05);
}

.alert {
    margin-bottom: 1rem;
}

.btn {
    margin-right: 0.5rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .btn {
        margin-right: 0;
        margin-bottom: 0.5rem;
    }
}