:root{--green:#158a43;--green-lite:#4ad176;--ink:#26313a;--muted:#6b7884;--line:#e7ecef}
*{box-sizing:border-box}
body{margin:0;font:16px/1.65 ui-rounded,"SF Pro Rounded",-apple-system,"Segoe UI",system-ui,sans-serif;color:var(--ink);background:#fff}
header{background:linear-gradient(135deg,var(--green-lite),var(--green));color:#fff;padding:56px 24px 48px}
.wrap{max-width:760px;margin:0 auto}
header h1{margin:0;font-size:34px;letter-spacing:-.5px}
header p{margin:8px 0 0;opacity:.92;font-size:17px}
main{padding:40px 24px 72px}
h2{font-size:22px;margin:40px 0 6px;letter-spacing:-.3px}
h2:first-child{margin-top:0}
h3{font-size:16px;margin:26px 0 4px}
p,li{color:#3c4a54}
a{color:var(--green);text-decoration:none;border-bottom:1px solid rgba(21,138,67,.3)}
a:hover{border-bottom-color:var(--green)}
.lang{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:#f2f5f7;border-radius:99px;padding:5px 11px;margin:34px 0 10px}
hr{border:0;border-top:1px solid var(--line);margin:44px 0}
footer{border-top:1px solid var(--line);padding:26px 24px;color:var(--muted);font-size:14px}
code{background:#f2f5f7;padding:2px 6px;border-radius:5px;font-size:14px}