* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
}

/* 为 .home-container 添加背景图 */
.home-container {
    background: url('bp.jpg') no-repeat center center/cover;
    height: 100vh; /* 设置为100%视口高度，确保背景覆盖整个屏幕 */
    text-align: center;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

/* 其他样式保留不变 */


/* 其他样式保留不变 */


header {
    padding-top: 20px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 50px;
}

.home-options {
    margin-top: 50px;
}

.option-btn {
    font-size: 1.5rem;
    padding: 15px 30px;
    margin: 20px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 10px;
    transition: background-color 0.3s;
}

.option-btn:hover {
    background-color: rgba(0, 0, 0, 0.9);
}

.content-container {
    display: none;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    padding: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.content {
    display: none;
    padding: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.content img {
    width: 100%;
    border-radius: 10px;
    margin-top: 10px;
}

.route-btn,
.indoor-route-btn {
    font-size: 1.5rem;
    padding: 15px 30px;
    margin: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 10px;
    transition: background-color 0.3s;
}

.route-btn:hover,
.indoor-route-btn:hover {
    background-color: rgba(0, 0, 0, 0.9);
}

.route-details,
.indoor-details {
    margin-top: 20px;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 10px;
}

.back-btn {
    background-color: red;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 20px;
    font-size: 1rem;
}

.back-btn:hover {
    background-color: darkred;
}

、
    h1 {
        font-size: 2rem;
    }

    .option-btn {
        font-size: 1.2rem;
        padding: 12px 25px;
    }
}