* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #1a1a1a;
    background: #f7f7f8;
    line-height: 1.6;
}
.layout { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
    background: #1a1a23;
    color: #d4d4d4;
    padding: 24px 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.sidebar-brand { padding: 0 24px 24px; border-bottom: 1px solid #2e2e3a; margin-bottom: 16px; }
.sidebar-brand h2 { font-size: 16px; color: #fff; margin-bottom: 4px; }
.sidebar-brand .version { font-size: 12px; color: #888; }
.sidebar nav { padding: 0 12px; flex: 1; }
.sidebar .nav-section {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #888;
    padding: 12px 12px 4px;
}
.sidebar nav a {
    display: block;
    padding: 8px 12px;
    color: #d4d4d4;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
}
.sidebar nav a:hover { background: #2a2a36; color: #fff; }
.sidebar nav a.active { background: #1d3a8c; color: #fff; }
.sidebar-footer { padding: 24px; border-top: 1px solid #2e2e3a; font-size: 12px; }
.sidebar-footer a { color: #888; text-decoration: none; }
.sidebar-footer a:hover { color: #fff; }
.content { padding: 32px 48px; max-width: 920px; }
.breadcrumb {
    font-size: 13px;
    color: #666;
    margin-bottom: 24px;
}
.breadcrumb a { color: #1d3a8c; text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .separator { margin: 0 8px; color: #999; }
article h1 { font-size: 28px; margin: 0 0 16px; color: #111; }
article h2 { font-size: 22px; margin: 32px 0 12px; color: #1a1a1a; border-bottom: 1px solid #e5e5e8; padding-bottom: 6px; }
article h3 { font-size: 17px; margin: 24px 0 8px; color: #1a1a1a; }
article h4 { font-size: 15px; margin: 16px 0 6px; color: #333; }
article p { margin: 0 0 12px; }
article ul, article ol { margin: 0 0 12px 24px; }
article li { margin: 4px 0; }
article code {
    background: #eef0f3;
    color: #c7254e;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
    font-size: 13px;
}
article pre {
    background: #1e1e2a;
    color: #e2e8f0;
    padding: 14px 18px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 0 0 16px;
    line-height: 1.5;
}
article pre code { background: transparent; color: inherit; padding: 0; font-size: 13px; }
article a { color: #1d3a8c; text-decoration: none; }
article a:hover { text-decoration: underline; }
article table { border-collapse: collapse; margin: 12px 0; width: 100%; }
article th, article td {
    border: 1px solid #e5e5e8;
    padding: 8px 12px;
    text-align: left;
    font-size: 14px;
}
article th { background: #f2f3f5; font-weight: 600; }
article blockquote {
    border-left: 3px solid #1d3a8c;
    background: #eef1f8;
    padding: 8px 16px;
    margin: 12px 0;
    color: #444;
}
article hr { border: none; border-top: 1px solid #e5e5e8; margin: 24px 0; }
.page-footer {
    margin-top: 48px;
    padding-top: 16px;
    border-top: 1px solid #e5e5e8;
    font-size: 12px;
    color: #888;
}
.page-footer code { background: #eef0f3; color: #666; }