:root{--paper:#f4ede1;--card:#fbf8f2;--ink:#2c2823;--soft:#5c5348;--gold:#9a6b31;--rule:#e2d5bd}
@media (prefers-color-scheme:dark){:root{--paper:#1c1a17;--card:#24211d;--ink:#ece6dc;--soft:#b3a999;--gold:#d2a66a;--rule:#3a352e}}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 -apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"Hiragino Sans","PingFang SC",sans-serif;-webkit-text-size-adjust:100%}
header,main,footer{max-width:760px;margin:0 auto;padding:0 20px}
header{display:flex;flex-wrap:wrap;gap:8px 0;justify-content:space-between;align-items:center;padding-top:28px;padding-bottom:8px}
header a.brand{font-family:"Songti SC","Noto Serif CJK SC",Georgia,serif;font-weight:700;font-size:22px;color:var(--ink);text-decoration:none;letter-spacing:.04em}
nav{display:flex;flex-wrap:wrap}nav a{color:var(--soft);text-decoration:none;font-size:15px;margin-left:16px}
main{overflow-wrap:anywhere}
nav a[aria-current]{color:var(--gold)}
h1{font-family:Georgia,"Songti SC",serif;font-size:34px;line-height:1.2;margin:36px 0 6px}
.updated{color:var(--soft);font-size:14px;margin:0 0 28px}
.lead{font-size:19px;color:var(--soft)}
h2{font-size:19px;margin:34px 0 8px;color:var(--gold)}
section{background:var(--card);border:1px solid var(--rule);border-radius:14px;padding:6px 24px 14px;margin:18px 0}
ul{padding-left:22px}li{margin:4px 0}
a{color:var(--gold)}
footer{color:var(--soft);font-size:14px;padding-top:24px;padding-bottom:48px;border-top:1px solid var(--rule);margin-top:40px}
@media (max-width:520px){nav a{margin-left:10px;font-size:14px}h1{font-size:28px}section{padding:4px 16px 12px}}
section h2{margin-top:20px}