/* 決策樹容器的樣式 */
#tree-container {
    width: 100%;
    height: 100%;
    border: 1px solid #ccc;
    background-color: #f7f9fc;
}

/* 視覺化組件內的讀取和錯誤訊息 */
.loading-message, .error-message {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    font-size: 1.1em;
    color: #555;
    font-style: italic;
}

.error-message {
    color: #d9534f;
    font-weight: bold;
}