:root{--bg:#fbfaf7;--surface:#fff;--ink:#16211f;--ink-2:#3f4b49;--ink-3:#6b7775;--line:#e4e1da;--brand:#0f6e68;--brand-2:#0b5652;--brand-bg:#eef7f5;--note:#eef7f5;--note-line:#bfe3dc;--code:#f1efe9}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#111716;--surface:#18201f;--ink:#e8eeec;--ink-2:#c3cdca;--ink-3:#93a09d;--line:#2a3533;--brand:#5fc3b6;--brand-2:#8ad6cb;--brand-bg:#16302c;--note:#15302c;--note-line:#2c5a53;--code:#222b2a}}
:root[data-theme="dark"]{--bg:#111716;--surface:#18201f;--ink:#e8eeec;--ink-2:#c3cdca;--ink-3:#93a09d;--line:#2a3533;--brand:#5fc3b6;--brand-2:#8ad6cb;--brand-bg:#16302c;--note:#15302c;--note-line:#2c5a53;--code:#222b2a}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand)}a:hover{color:var(--brand-2)}
.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:12px;padding:12px 20px;background:var(--surface);border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:18px;color:var(--ink);text-decoration:none}.brand span{font-weight:500;color:var(--ink-3);margin-left:6px}
.layout{display:grid;grid-template-columns:240px minmax(0,1fr) 220px;gap:40px;max-width:1280px;margin:0 auto;padding:28px 20px 64px}
.side ul,.toc ul{list-style:none;margin:0;padding:0}.side li a{display:block;padding:6px 10px;border-radius:8px;color:var(--ink-2);text-decoration:none;font-size:15px}
.side li a:hover{background:var(--brand-bg)}.side li a[aria-current="page"]{background:var(--brand-bg);color:var(--brand-2);font-weight:600}
.side .print,.mobile-nav .print{display:block;margin-top:16px;font-size:14px}
.side,.toc{position:sticky;top:76px;align-self:start;max-height:calc(100vh - 96px);overflow:auto}
.toc p{margin:0 0 8px;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}.toc a{display:block;padding:4px 0;font-size:14px;color:var(--ink-2);text-decoration:none}.toc a:hover{color:var(--brand)}
main{min-width:0}article{max-width:760px}
h1{font-size:34px;line-height:1.2;margin:0 0 16px;letter-spacing:-.01em}h2{font-size:24px;margin:44px 0 12px;padding-top:8px;border-top:1px solid var(--line)}h3{font-size:19px;margin:30px 0 8px}h4{font-size:16px;margin:24px 0 6px}
h2,h3,h4{position:relative;scroll-margin-top:80px}.anchor{position:absolute;left:-1.1em;opacity:0;text-decoration:none;color:var(--ink-3)}h2:hover .anchor,h3:hover .anchor,h4:hover .anchor{opacity:1}
p,ul,ol{margin:0 0 14px}li{margin:4px 0}code{background:var(--code);padding:1px 6px;border-radius:5px;font-size:.92em;word-break:break-word}
pre{background:var(--code);padding:14px;border-radius:10px;overflow:auto}pre code{background:none;padding:0}
.note{background:var(--note);border:1px solid var(--note-line);border-radius:12px;padding:12px 16px;margin:0 0 18px}.note p{margin:0}
.table{overflow-x:auto;margin:0 0 18px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;vertical-align:top;padding:9px 12px;border-bottom:1px solid var(--line)}th{font-size:13px;color:var(--ink-3);font-weight:600;background:var(--bg)}tr:last-child td{border-bottom:0}
figure{margin:8px 0 24px}figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}figcaption{margin-top:6px;font-size:14px;color:var(--ink-3)}
.pager{display:flex;justify-content:space-between;gap:16px;max-width:760px;margin-top:48px;padding-top:16px;border-top:1px solid var(--line);font-size:15px}.pager a{text-decoration:none}.pager span{display:block;font-size:12px;color:var(--ink-3)}
.mobile-nav{display:none;margin:0 0 20px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.mobile-nav summary{padding:10px 14px;cursor:pointer;font-weight:600}.mobile-nav ul{list-style:none;margin:0;padding:0 8px 10px}.mobile-nav li a{display:block;padding:8px 10px;text-decoration:none;color:var(--ink-2)}
footer{max-width:1280px;margin:0 auto;padding:0 20px 40px;color:var(--ink-3);font-size:13px}
@media (max-width:1100px){.layout{grid-template-columns:220px minmax(0,1fr)}.toc{display:none}}
@media (max-width:760px){.layout{display:block;padding:16px 16px 48px}.side{display:none}.mobile-nav{display:block}h1{font-size:28px}h2{font-size:21px}.anchor{display:none}}
@media print{.top,.side,.toc,.mobile-nav,.pager,footer,.anchor{display:none!important}.layout{display:block;padding:0}body{background:#fff;color:#000;font-size:11pt}a{color:#000;text-decoration:none}h2{break-after:avoid}figure,table{break-inside:avoid}.page-break{break-before:page}}