body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 3rem;
    color: #2c2c2c;
    line-height: 1.7;
}

h1, h2, h3, h4 {
    color: #1a1a2e;
    margin-top: 2rem;
}

a {
    color: #0066cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
    background: #f4f4f4;
    padding: 0.15em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
}

pre {
    background: #f4f4f4;
    padding: 1em 1.2em;
    border-radius: 5px;
    overflow-x: auto;
    line-height: 1.5;
}

pre code {
    background: none;
    padding: 0;
}

table {
    border-collapse: collapse;
    width: 100%;
    margin: 1rem 0;
}

th, td {
    border: 1px solid #ddd;
    padding: 0.5em 0.8em;
    text-align: left;
}

th {
    background: #f0f0f0;
    font-weight: 600;
}

tr:nth-child(even) {
    background: #fafafa;
}

#TOC {
    background: #f9f9f9;
    border-left: 4px solid #0066cc;
    padding: 1em 1.5em;
    margin-bottom: 2rem;
    border-radius: 0 4px 4px 0;
}

#TOC ul {
    margin: 0.3em 0;
}

img {
    max-width: 100%;
    height: auto;
}

blockquote {
    border-left: 4px solid #ddd;
    margin: 0;
    padding: 0.5em 1em;
    color: #555;
    font-style: italic;
}

hr {
    border: none;
    border-top: 1px solid #ddd;
    margin: 2rem 0;
}