body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 40px auto;
    padding: 40px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #1d1d1f;
}

h2 {
    font-size: 1.8em;
    margin-top: 40px;
    margin-bottom: 15px;
    color: #1d1d1f;
    border-bottom: 1px solid #e5e5e7;
    padding-bottom: 10px;
}

p {
    margin-bottom: 16px;
}

a {
    color: #007aff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

li {
    margin-bottom: 8px;
}

footer {
    text-align: center;
    margin-top: 60px;
    font-size: 0.9em;
    color: #6e6e73;
}