:root{--paper:#fbfaf6;--rail:#f0f1eb;--ink:#202e30;--muted:#536467;--accent:#185c50;--line:#d7ded6;--code:#eef1eb;--error:#982d25;--serif:"Iowan Old Style","Songti SC","Noto Serif CJK SC",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:40px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.85 var(--sans);accent-color:var(--accent);caret-color:var(--accent)}::selection{background:#d2e7db;color:#143b32}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input{font:inherit}button,a,input{touch-action:manipulation}:focus-visible{outline:3px solid #397c69;outline-offset:4px}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}[hidden]{display:none!important}.skip-link{position:fixed;top:-100px;left:20px;padding:10px 16px;background:white;z-index:20}.skip-link:focus{top:10px}
.sidebar{position:fixed;inset:0 auto 0 0;width:292px;padding:38px 26px 24px;background:var(--rail);border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:auto;scrollbar-width:thin;scrollbar-color:#a8b9ae transparent}.brand{font:700 28px/1.3 var(--serif);text-decoration:none;color:var(--ink);margin-bottom:32px}.brand span{display:block;font:13px/1.5 var(--sans);font-weight:400;color:var(--muted);margin-top:10px}.search-label{font-size:12px;font-weight:600;color:var(--muted);margin-bottom:6px}input[type=search]{width:100%;padding:9px 11px;background:var(--paper);border:1px solid #6c7f70;border-radius:6px;font-size:13px;color:var(--ink)}input::placeholder{color:#65736b}.search-status{font-size:12px;min-height:20px;margin:4px 0 12px;color:var(--muted)}nav{display:flex;flex-direction:column;gap:4px}nav a{font-size:13px;line-height:1.6;text-decoration:none;color:var(--muted);padding:7px 10px;border-radius:4px}nav a:hover{background:#e3e8df;color:var(--ink)}nav a[aria-current=true]{background:#dce8dd;color:#194c3e;font-weight:600}.sidebar-bottom{margin-top:auto;padding-top:30px;font-size:12px}.sidebar-bottom>a{display:block;margin-bottom:10px}.quiet{border:0;background:transparent;padding:4px 0;color:var(--muted);font-size:12px;text-decoration:underline;text-underline-offset:4px}
main#content{margin-left:292px;padding:42px clamp(30px,6vw,100px) 40px;max-width:1280px}.reading-header{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.reading-header a{white-space:nowrap}.document-title{padding:38px 0 24px;max-width:780px}.document-title h1{font:600 clamp(34px,4vw,48px)/1.25 var(--serif);margin:0 0 10px;letter-spacing:.015em}.subtitle{font-size:18px!important;color:var(--accent);margin:0 0 22px!important}.lede{font-size:17px!important;max-width:37em;color:var(--muted)}.document-title>p:last-child{font-size:12px;color:var(--muted);margin-top:26px}article{max-width:780px}section{padding-top:22px;margin-top:16px;border-top:1px solid var(--line);scroll-margin-top:24px}h2{font:600 27px/1.5 var(--serif);margin:20px 0 20px;letter-spacing:.01em}h3{font-size:18px;line-height:1.6;margin:32px 0 12px}p{margin:14px 0}ul,ol{padding-left:1.6em}li{padding-left:3px;margin:7px 0}li input[type=checkbox]{width:16px;height:16px;margin:0 7px 0 -20px;vertical-align:middle;opacity:1}li:has(>input[type=checkbox]){list-style:none}strong{font-weight:650;color:#183e36}pre{padding:20px;background:var(--code);border-radius:5px;overflow:auto;font-size:13px;line-height:1.7}code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}p code,li code,td code{background:var(--code);padding:2px 4px;border-radius:3px;font-size:.88em;overflow-wrap:anywhere}.table-scroll{overflow-x:auto;margin:22px 0;max-width:100%}table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.7}th,td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line);min-width:90px}th{font-weight:600;color:var(--accent);background:#eef1e9}tbody tr:nth-child(even){background:#f5f5ee}blockquote{margin:20px 0;padding:6px 20px;border-left:1px solid var(--accent);color:var(--muted)}footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:54px;padding-top:20px;font-size:12px;color:var(--muted)}.mobile-header{display:none}#empty-search{padding:30px 0;color:var(--muted)}
.login-body{min-height:100svh;display:grid;place-items:center;padding:36px 24px;background:var(--rail)}.login-panel{width:min(100%,420px);padding:0}.login-brand{font:600 20px var(--serif);text-decoration:none;color:var(--accent)}.login-panel h1{font:600 clamp(32px,6vw,42px)/1.3 var(--serif);margin:36px 0 12px}.login-panel>p{color:var(--muted);font-size:15px}.login-panel form{margin-top:30px}.login-panel label:not(.remember){display:block;font-size:14px;font-weight:600;margin:18px 0 7px}.login-panel input:not([type=checkbox]){display:block;width:100%;padding:12px 14px;border:1px solid #6c7f70;border-radius:5px;background:var(--paper);color:var(--ink)}.remember{display:flex;align-items:center;gap:8px;font-size:13px;margin:20px 0;color:var(--muted)}.remember input{height:17px;width:17px}.primary{display:flex;justify-content:space-between;width:100%;padding:13px 18px;border:0;border-radius:5px;background:var(--accent);color:white;font-size:15px;font-weight:600}.primary:hover{background:#134b41}.login-note{font-size:12px!important;margin-top:30px!important;border-top:1px solid #c9d3c8;padding-top:18px}.login-error{color:var(--error);font-size:13px}
@media(min-width:1500px){main#content{margin-right:auto;margin-left:max(292px,calc((100vw - 1300px)/2 + 250px))}}
@media(max-width:900px){.sidebar{width:248px;padding:30px 20px}main#content{margin-left:248px;padding:30px}.reading-header{align-items:flex-start}.reading-header>span{max-width:160px}}
@media(max-width:680px){html{scroll-padding-top:80px}.mobile-header{display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--paper);padding:13px 20px;border-bottom:1px solid var(--line);z-index:5}.mobile-header>a{font:600 20px var(--serif);text-decoration:none;color:var(--ink)}.mobile-header button{border:1px solid #6c7f70;border-radius:4px;color:var(--accent);background:transparent;padding:4px 14px;font-size:13px}.sidebar{display:none;top:60px;width:100%;height:calc(100svh - 60px);z-index:4;padding:24px}.sidebar.open{display:flex}.sidebar .brand{display:none}.sidebar nav a{font-size:15px;padding:9px}.sidebar-bottom{margin-top:20px}.sidebar .search-status{min-height:10px}main#content{margin:0;padding:26px 22px 32px;max-width:100%;overflow-wrap:anywhere}.reading-header{font-size:11px;gap:8px}.reading-header>span{max-width:none}.document-title{padding-top:28px}.document-title h1{font-size:36px}.subtitle{font-size:16px!important}.lede{font-size:15px!important}body{font-size:15px;line-height:1.9}h2{font-size:24px}h3{font-size:17px}pre{padding:15px;font-size:12px;overflow-wrap:normal}table{min-width:460px;font-size:13px}th,td{padding:10px}section{scroll-margin-top:75px}footer{flex-direction:column;gap:8px}.login-body{padding:36px 28px}.login-panel{max-width:380px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.sidebar,.mobile-header,.reading-header,footer{display:none!important}main#content{margin:0;padding:0;max-width:none}section[hidden]{display:block!important}body{background:white;font-size:11pt}pre,table{break-inside:avoid}}