:root{--fg:#1a1a1a;--muted:#666;--accent:#0b6}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,Segoe UI,Roboto,sans-serif;color:var(--fg);background:#fafafa}
.wrap{max-width:720px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid #e5e5e5;background:#fff}header .wrap{display:flex;justify-content:space-between;align-items:center;padding:16px 20px}
header strong{font-size:18px}nav a{margin-left:18px;color:var(--muted);text-decoration:none}nav a:hover{color:var(--accent)}
main{padding:40px 20px}h1{font-size:28px;margin:0 0 8px}.lead{color:var(--muted);font-size:18px}
article{border-top:1px solid #eee;padding:20px 0}h2{font-size:20px;margin:0 0 4px}.date{color:var(--muted);font-size:13px;margin:0 0 8px}
footer{border-top:1px solid #e5e5e5;color:var(--muted);font-size:13px;text-align:center;padding:20px 0}