:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",sans-serif;color:#20352e;background:#f7f8f4}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:760px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:16px}nav{display:flex;gap:16px;flex-wrap:wrap}a{color:#2864d5}main{padding-top:8px;padding-bottom:40px}h1{font-size:2rem;margin:0 0 10px}h2{font-size:1.2rem;margin:0 0 10px}p,li{line-height:1.7}section{background:#fff;border:1px solid #dfe8e3;border-radius:18px;padding:20px;margin:16px 0}.lead{color:#56685f}.lang{font-size:.9rem;color:#65756d}footer{border-top:1px solid #dfe8e3;color:#65756d;font-size:.9rem}@media(max-width:520px){header{display:block}nav{margin-top:12px}header,main,footer{padding-left:18px;padding-right:18px}}