:root{--bg:#0B0D12;--ink:#E8E9ED;--sub:#9AA0AC;--rule:rgba(255,255,255,.11);--accent:#5ABEFA}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo",sans-serif;
  -webkit-text-size-adjust:100%}
.wrap{max-width:46rem;margin:0 auto;padding:2.5rem 1.25rem 5rem}
header{border-bottom:1px solid var(--rule);padding-bottom:1.25rem;margin-bottom:2rem}
.mark{font-size:.8rem;letter-spacing:.28em;color:var(--sub);text-transform:uppercase}
h1{font-size:1.6rem;margin:.6rem 0 .3rem;letter-spacing:-.01em}
.meta{color:var(--sub);font-size:.85rem;margin:0}
.lang{margin-top:.9rem;font-size:.85rem}
.lang a{color:var(--accent);text-decoration:none;margin-right:.9rem}
.lang a:hover{text-decoration:underline}
h2{font-size:1.05rem;margin:2.2rem 0 .6rem;letter-spacing:-.005em}
h3{font-size:.95rem;margin:1.4rem 0 .4rem;color:var(--ink)}
p,li{color:var(--ink)}
ul{padding-left:1.15rem}
li{margin:.3rem 0}
a{color:var(--accent)}
hr{border:0;border-top:1px solid var(--rule);margin:2.5rem 0}
.note{color:var(--sub);font-size:.9rem}
.card{border:1px solid var(--rule);border-radius:14px;padding:1rem 1.15rem;margin:1.2rem 0}
footer{margin-top:3rem;padding-top:1.25rem;border-top:1px solid var(--rule);color:var(--sub);font-size:.85rem}
@media (prefers-color-scheme: light){
  :root{--bg:#FFFFFF;--ink:#14161B;--sub:#5B6270;--rule:rgba(0,0,0,.12);--accent:#0B6FB8}
}