:root{--bg:#F8F6F2;--card:#FFFFFF;--ink:#2B2622;--muted:#5C544D;--brand:#8A5D3D;--line:#E6E0D8;--warn-bg:#FBF3E6;}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:24px 18px 60px}
header{padding:18px 0 8px;border-bottom:1px solid var(--line);margin-bottom:22px}
header .brand{font-size:13px;letter-spacing:.3em;color:var(--brand);font-weight:600}
h1{font-size:24px;margin:8px 0 6px;line-height:1.35}
.meta{font-size:13px;color:var(--muted)}
.meta span{margin-right:16px}
h2{font-size:18px;margin:32px 0 10px;padding-left:10px;border-left:4px solid var(--brand);line-height:1.4}
h3{font-size:16px;margin:20px 0 6px}
p{margin:8px 0}
ul,ol{padding-left:22px;margin:6px 0}
li{margin:4px 0}
b,strong{font-weight:600}
.box{background:var(--warn-bg);border:1px solid #EAD9C2;border-radius:8px;padding:12px 14px;margin:14px 0;font-size:15px}
table{width:100%;border-collapse:collapse;font-size:14px;margin:10px 0;background:var(--card)}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:#F3EEE7;font-weight:600;white-space:nowrap}
.toc{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:12px 16px;font-size:14px}
.toc ol{margin:4px 0;padding-left:20px}
.toc a{color:var(--brand);text-decoration:none}
footer{margin-top:44px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
footer a{color:var(--brand);text-decoration:none;margin-right:14px}
a{color:var(--brand)}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:14px 0}
.card h2{margin-top:0;border:0;padding:0;font-size:17px}
.card p{color:var(--muted);font-size:14px}
@media (max-width:480px){body{font-size:15px}h1{font-size:21px}h2{font-size:17px}th,td{padding:6px 8px;font-size:13px}}