:root {
    --text-color: #333;
    --bg-color: #fff;
    --link-color: #007bff;
    --border-color: #eee;
}
* { box-sizing: border-box; }
body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
    margin: 0;
    padding: 0;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}
header {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    margin-bottom: 40px;
}
header h1 { margin: 0; font-size: 1.5rem; }
header a { text-decoration: none; color: inherit; }
a { color: var(--link-color); text-decoration: none; }
a:hover { text-decoration: underline; }
.post-list { list-style: none; padding: 0; }
.post-item { margin-bottom: 30px; }
.post-item h2 { margin: 0 0 10px 0; }
.post-meta { color: #666; font-size: 0.9rem; margin-bottom: 10px; }
.post-summary { margin: 0; }
footer {
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    margin-top: 40px;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}
article img { max-width: 100%; height: auto; }
article code { background: #f4f4f4; padding: 2px 4px; border-radius: 4px; font-family: monospace; }
article pre { background: #f4f4f4; padding: 15px; overflow-x: auto; border-radius: 6px; }