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

body, html {
    height: 100%;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url('../images/background.jpg') no-repeat center center fixed;
    background-size: cover;
    color: #fff;
}

.content {
    text-align: center;
    max-width: 600px;
    width: 100%;
    padding: 50px;
    background-color: rgba(0,0,0,0.6); /* 半透明黑色背景 */
    border-radius: 10px;
}

h1 {
    font-size: 4em;
    margin-bottom: 20px;
}

p {
    font-size: 1.5em;
    line-height: 1.5;
}

.back-to-home {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1.2em;
    color: #fff;
    background-color: #007BFF;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.back-to-home:hover {
    background-color: #0056b3;
}