body{font:16px/1.6 system-ui;margin:0;background:#fff} .container{max-width:1100px;margin:0 auto;padding:24px} .card{background:#fff;border-radius:12px;padding:18px;box-shadow:0 6px 18px rgba(0,0,0,.06)} .header{background:#ffb36b} .nav a{margin-right:12px}