:root{
  --ink:#0f172a; --muted:#64748b; --line:#e6eaf0; --brand:#0d9488;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;}
body{font-family:var(--font); color:var(--ink); line-height:1.65; max-width:680px;
     margin:0 auto; padding:26px 22px 64px; -webkit-font-smoothing:antialiased;}
a{color:var(--brand); text-decoration:none;}
a:hover{text-decoration:underline;}
.doc-back{font-size:14px; font-weight:600; margin:0 0 30px;}
.doc-back a{color:var(--muted);}
.doc-back a:hover{color:var(--ink); text-decoration:none;}
h1{font-size:28px; letter-spacing:-.02em; margin:0 0 6px;}
h2{font-size:18px; margin:30px 0 8px;}
p{margin:12px 0; color:#334155;}
.date{color:var(--muted); font-size:14px;}
ol,ul{padding-left:22px;}
li{margin:8px 0; color:#334155;}
strong{color:var(--ink);}
.doc-foot{margin-top:52px; padding-top:20px; border-top:1px solid var(--line);
          color:var(--muted); font-size:13px; text-align:center;}