body {
    font-family: Arial;
    font-size: 14pt;
}

#spinner {
    display: none;
}

body.busy .spinner {
    display: block !important;
}

textarea {
    resize: none;
}

.btn-xs {
    padding: .25rem .5rem;
    font-size: .75rem;
    line-height: 1.2;
    border-radius: .2rem;
}

.alert-top {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1050; /* Bootstrap 的 z-index 用於控制層次 */
    border-radius: 0; /* 選擇性地讓邊框變平 */
}

.is-warning {
    border-color: #ffc107; /* Bootstrap 警告黃 */
    background-color: #fffbe6; /* 淡黃色背景以示警告 */
}