a {
    cursor: pointer;
    color: black;
}

a:hover {
    color: #000;
    text-decoration: none;
}

.footer {
    background-color: green;
    grid-row-start: 2;/*欄位從第二條橫線開始*/
    grid-row-end: 3;/*欄位從第三條橫線結束*/
}

.bottom-line {
    border-bottom: 2px solid #000;
}

.letter-spacing {
    letter-spacing: 1.5px; /* 根据需要调整间距值，正数增加间距，负数减少间距 */
}

.mt-em-3 {
    margin-top: 3em;
}

.mt-em-5 {
    margin-top: 5em;
}

.mt-em-7 {
    margin-top: 7em;
}

.mt-em-10 {
    margin-top: 10em;
}

.h-220 {
    height: 220px;
}

.border-line-none {
    border: none;
}

.border-radius-30 {
    -webkit-border-radius: 30px;
    -moz-border-radius: 30px;
    border-radius: 30px;
}