body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial;
    background: #f4f6f9;
    margin: 0;
}

.container {
    max-width: 900px;
    margin: 60px auto;
}

h1 {
    font-size: 26px;
    margin-bottom: 20px;
    color: #333;
}

pre {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    line-height: 1.8;
    overflow-x: auto;
}

a {
    color: #2563eb;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

hr {
    border: none;
    border-top: 1px solid #eee;
    margin: 15px 0;
}

.footer {
    margin-top: 25px;
    text-align: center;
    color: #999;
    font-size: 13px;
}