.toggle-box {
    margin: 1em 0;
    border: 1px solid #ccc;
    border-radius: 6px;
    overflow: hidden;
}
.toggle-header {
    background: #f0f0f0;
    padding: 10px;
    font-weight: bold;
    cursor: pointer;
    user-select: none;
}
.toggle-content {
    display: none;
    padding: 10px;
    background: #fff;
    border-top: 1px solid #ccc;
}