body{margin:0;font:16px/1.6 system-ui,sans-serif;color:#1b2a2f;background:#f4f8f7}
header,main,footer{max-width:760px;margin:0 auto;padding:20px}
header{display:flex;align-items:center;gap:14px}header img{width:64px;height:64px;border-radius:14px}
h1{margin:0;font-size:26px}h2{font-size:19px;margin-top:28px}nav a{margin-right:16px;color:#0b6b57;font-weight:600}
.card{background:#fff;border-radius:12px;padding:16px;margin:14px 0;box-shadow:0 1px 3px #0002}
footer{font-size:13px;color:#53656b}