body {
    font-family: '微软雅黑', sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    line-height: 1.6;
}

header {
    background: #2c3e50;
    color: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

nav {
    margin-top: 15px;
}

nav a {
    color: white;
    margin-right: 15px;
    text-decoration: none;
}

nav a:hover {
    color: #3498db;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

footer {
    text-align: center;
    margin-top: 40px;
    color: #666;
}