header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 100%;
    z-index: 1030;
}

/* 固定 Footer */
footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    max-width: 100%;
    z-index: 1030;
    background-color: #f8f9fa;
    border-top: 1px solid #e7e7e7;
}

/* 調整主內容區域 */
main {
    margin-top: 30px; /* 避免被 header 蓋住 */
    width: 100%;
    max-width: 100%;
}

/* body {
    font-family: "Times New Roman", Times, serif;
} */

/* Global font setting */
body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1.75rem !important;
}