:root{--bg:#F5F7FB;--surface:#fff;--text:#0F172A;--text-2:#5B6478;--ink:#0284A8;--violet:#7C4DFF;--border:rgba(15,23,42,.08)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;line-height:1.9}
.wrap{max-width:820px;margin:0 auto;padding:24px 16px 64px}
header{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.logo{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;font-size:22px;background:#fff;border:1px solid var(--border)}
h1{margin:0;font-size:24px;background:linear-gradient(135deg,#00B8D4,var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
nav{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 20px}
nav a{padding:6px 14px;border-radius:10px;background:#fff;border:1px solid var(--border);color:var(--text-2);text-decoration:none;font-size:14px}
nav a.on{color:var(--ink);border-color:rgba(0,184,212,.5)}
section{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:20px 22px;margin-bottom:18px}
h2{font-size:18px;margin:22px 0 6px;color:var(--ink)}
h2:first-child{margin-top:0}
p,li{color:var(--text-2);font-size:15px}
.meta{font-size:13px;color:var(--text-2)}
[dir=ltr]{text-align:left}