body{margin:0;font-family:Arial,sans-serif;background:#f4f7f5;color:#17342b;line-height:1.6}header{background:#0b3d2e;color:#fff;padding:24px}.wrap{max-width:900px;margin:auto;padding:0 20px}.card{background:#fff;border:1px solid #dce5e0;border-radius:16px;padding:24px;margin:28px auto}a{color:#0b5d45}h1,h2{color:#17342b}nav a{color:#fff;margin-right:14px;text-decoration:none;font-weight:700}footer{text-align:center;padding:24px;color:#64786f}