* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background: #f4f4f4;
    color: #333;
    line-height: 1.5;
}
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
h1 {
    color: #0066cc;
    margin-bottom: 20px;
    font-size: 1.5em;
    border-bottom: 2px solid #0066cc;
    padding-bottom: 10px;
}
@media print {
    h1 {
        display: none;
    }
}
pre {
    margin: 0;
    padding: 0;
    background: white;
}
code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
}
.hljs {
    background: white;
    padding: 20px;
}