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

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header {
    text-align: center;
    margin-bottom: 20px;
}

header h1 {
    font-size: 2rem;
    color: #4CAF50;
}

section {
    margin-bottom: 20px;
}

section h2 {
    font-size: 1.5rem;
    color: #4CAF50;
    border-bottom: 2px solid #4CAF50;
    padding-bottom: 5px;
    margin-bottom: 10px;
}

p {
    line-height: 1.6;
}

ol {
    margin-left: 20px;
    line-height: 1.6;
}

pre {
    background-color: #f0f0f0;
    padding: 10px;
    border-radius: 4px;
    overflow-x: auto;
}

pre code {
    font-family: 'Times New Roman', Times, serif;
    color: #d6336c;
}