body {
    font-family: 'Times New Roman', Times, serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background: #35424a;
    color: #ffffff;
    padding: 1rem 0;
    text-align: center;
}

header h2 {
    margin: 0;
    font-size: 2rem;
}

main {
    padding: 1rem 2rem;
}

section {
    background: #ffffff;
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

section h4 {
    color: #35424a;
}

pre {
    background: #f4f4f4;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow-x: auto;
}

pre code {
    font-family: 'Times New Roman', Times, serif;
    font-size: 0.9rem;
    color: #333;
}