:root{--bg:#e7ebec;--panel:#f5f7f7;--panel-2:#dde4e5;--line:#c4cdce;--fg:#13201f;--muted:#566766;--accent:#86650f;--accent-fg:#ffffff;
  --font-ui:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-head:"IBM Plex Sans Condensed","IBM Plex Sans",system-ui,sans-serif}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#0b1110;--panel:#121a19;--panel-2:#1b2624;--line:#263431;--fg:#e3ebe8;--muted:#8b9c98;--accent:#d5a93c;--accent-fg:#1b1403;color-scheme:dark}}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 var(--font-ui);padding:0 max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px))}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1180px;margin:0 auto}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg);font-family:var(--font-head);font-weight:700;font-size:21px}
.mark{width:24px;height:15px;background:var(--accent);clip-path:polygon(18% 0,82% 0,100% 100%,0 100%)}
.top nav{display:flex;gap:20px;font-size:14px;flex-wrap:wrap}
.top nav a{color:var(--muted);text-decoration:none}
.top nav a:hover,.top nav a[aria-current]{color:var(--fg)}
main{max-width:760px;margin:24px auto 0}
h1,h2,h3{font-family:var(--font-head);line-height:1.15;text-wrap:balance}
h1{font-size:clamp(2rem,5vw,3rem);margin:0 0 8px}
h2{font-size:24px;margin:40px 0 10px;padding-top:16px;border-top:1px solid var(--line)}
ul{padding-left:22px}
li{margin:4px 0}
.meta{color:var(--muted);font-size:14px;margin:0 0 20px}
.box{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:6px;padding:12px 16px;margin:18px 0}
.toc{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:12px 18px;font-size:15px}
.toc ol{margin:6px 0;padding-left:20px;columns:2;column-gap:28px}
@media (max-width:640px){.toc ol{columns:1}}
table{border-collapse:collapse;width:100%;font-size:15px;margin:10px 0}
th,td{text-align:left;vertical-align:top;padding:8px 10px;border-bottom:1px solid var(--line)}
th{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.tw{overflow-x:auto}
.foot{max-width:1180px;margin:56px auto 0;border-top:1px solid var(--line);padding-top:20px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
.foot a{color:var(--muted)}