:root{color-scheme:light dark;--bg:#fffbf4;--paper:#fffdf9;--ink:#221c12;--muted:#6e6353;--line:#eaddc8;--accent:#347a4b;--soft:#eef4e9}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--accent);text-underline-offset:.22em;overflow-wrap:anywhere}
a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
header,main,footer{width:min(900px,100% - 40px);margin:auto}
header{padding:28px 0;display:flex;gap:18px;justify-content:space-between;align-items:center;flex-wrap:wrap;border-bottom:1px solid var(--line)}
header>a{font-weight:650;text-decoration:none}nav{display:flex;gap:24px;flex-wrap:wrap}
main{padding:38px 0 56px}
h1{font-size:clamp(30px,5vw,42px);line-height:1.35;margin:0 0 14px;letter-spacing:.01em}
h2{font-size:23px;line-height:1.5;margin:36px 0 14px}
h3{font-size:18px;margin:24px 0 8px}
p,ul,ol{margin:12px 0}li{margin:7px 0}
.meta{color:var(--muted);font-size:15px}
.summary{background:var(--soft);border:1px solid var(--line);border-radius:20px;padding:20px 24px;margin:24px 0}
.summary p:first-child{margin-top:0}.summary p:last-child{margin-bottom:0}
.toc{display:flex;flex-wrap:wrap;gap:8px 22px;padding:0;list-style:none;font-size:15px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:var(--paper)}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;vertical-align:top;padding:15px 17px;border-bottom:1px solid var(--line)}
th{font-weight:650;background:var(--soft);white-space:nowrap}tr:last-child td{border-bottom:0}td:first-child{min-width:105px}
.notice{border-left:3px solid var(--accent);padding-left:18px;color:var(--muted)}
footer{padding:26px 0 40px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
footer nav{margin-bottom:12px}
@media(prefers-color-scheme:dark){:root{--bg:#121711;--paper:#192018;--ink:#edf1e9;--muted:#b6c1b0;--line:#384333;--accent:#9bd9a7;--soft:#202e20}}
@media(max-width:480px){body{font-size:16px}header,main,footer{width:calc(100% - 32px)}main{padding-top:28px}.summary{padding:16px 18px}th,td{padding:12px}h2{font-size:21px}}
@media print{header,footer,.toc{display:none}body{background:white;color:black}main{width:100%;padding:0}.summary,.table-wrap{break-inside:avoid}a{color:inherit}}