#main-menu {
    text-align: center;
    background-image: url('../img/welcome.JPG');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 600px; /* 根據圖片大小調整 */
    position: relative;
}

#main-menu h1 {
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    padding-top: 50px; /* 調整標題位置 */
}

.menu-options {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 30px;
    position: absolute;
    bottom: 320px; /* 調整按鈕位置 */
    left: 0;
    right: 0;
}

.menu-options button {
    width: 200px;
    margin: 10px 0;
    background-color: rgba(139, 0, 0, 0.8);
    border: 2px solid white;
}

.menu-options button:hover {
    background-color: rgba(165, 42, 42, 0.9);
}

#back-to-menu {
    display: block;
    margin: 20px auto;
    background-color: rgba(85, 85, 85, 0.8);
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

#back-to-menu:hover {
    background-color: rgba(119, 119, 119, 0.9);
}