:root{color-scheme:light;font-family:'Segoe UI','Microsoft YaHei',sans-serif;background:#f5f5ed;color:#30462f}*{box-sizing:border-box}body{margin:0}header,main,footer{width:min(850px,100%);margin:auto;padding:26px}header{display:flex;align-items:center;gap:13px;border-bottom:1px solid #ccd4c0}header img{width:44px;height:44px}header a{font-size:17px;font-weight:700;text-decoration:none;color:#30462f}header span{margin-left:auto;font-size:12px;color:#6b775f}h1{font-size:32px;margin:20px 0 12px}h2{font-size:20px;margin:30px 0 12px}p,li{line-height:1.95;font-size:15px}a{color:#276b43;text-underline-offset:4px}article{background:#fffef7;padding:25px;border:1px solid #d1d9c6;border-radius:9px}code{background:#e8ecdf;padding:2px 5px}.back{display:inline-block;background:#315e43;color:#fff;padding:12px 24px;border-radius:6px;text-decoration:none;margin:18px 0}footer{font-size:12px;color:#78826e}footer a{margin-right:15px}:focus-visible{outline:3px solid #2276b1;outline-offset:3px}@media(max-width:600px){header,main,footer{padding:18px}article{padding:18px}h1{font-size:27px}header span{display:none}}