:root{color-scheme:dark;--bg:#101015;--panel:#1a1921;--text:#efedf5;--muted:#b4adbf;--line:#3c3646;--accent:#d4b9f4}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.9 -apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",sans-serif}
header,nav,main{width:min(880px,100%);margin:auto;padding:20px 28px}
header{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}
header a{text-decoration:none}.brand{font-weight:650;color:var(--text)}
nav{display:flex;gap:24px;padding-top:12px;padding-bottom:0;font-size:14px}
main{padding-bottom:64px;overflow-wrap:anywhere}
a{color:var(--accent);text-underline-offset:4px}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.return{display:inline-flex;align-items:center;min-height:44px;font-size:14px}
.eyebrow{color:var(--muted);font-size:12px;letter-spacing:.08em;margin-top:4px}
.prism-note{padding:14px 18px;border:1px solid var(--line);border-radius:12px;background:var(--panel);font-size:14px}
h1{font-size:32px;line-height:1.4;margin:32px 0 20px}h2{font-size:23px;line-height:1.5;margin-top:40px}h3{font-size:18px;margin-top:28px}
p,ul,ol{margin:16px 0}li{margin:8px 0}ul,ol{padding-left:24px}
html{scroll-behavior:smooth}h2[id],h3[id]{scroll-margin-top:24px}
kbd{padding:2px 6px;border:1px solid var(--line);border-radius:5px;font:inherit;font-size:.85em}
.toc{font-size:14px;color:var(--muted)}
details{margin:24px 0;border:1px solid var(--line);border-radius:12px;padding:16px 20px}summary{cursor:pointer;font-weight:600}
code{padding:3px 6px;border-radius:5px;background:var(--panel);font-size:.9em;overflow-wrap:anywhere}
pre{position:relative;max-width:100%;overflow-x:auto;white-space:pre;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:48px 18px 18px;line-height:1.7}
pre code{padding:0;background:transparent;overflow-wrap:normal;white-space:pre}
.copy-code{position:absolute;right:10px;top:8px;min-height:32px;border:1px solid var(--line);border-radius:6px;padding:4px 10px;background:var(--bg);color:var(--text);cursor:pointer}
blockquote{margin:20px 0;padding:1px 18px;border-left:3px solid var(--accent);color:var(--muted)}
hr{border:0;border-top:1px solid var(--line);margin-top:36px}
.source{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin-top:40px}
.system-options{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0}
.system-options a{display:block;padding:24px;border:1px solid var(--line);border-radius:14px;background:var(--panel);text-decoration:none}
.system-options strong{display:block;font-size:21px}.system-options span{display:block;color:var(--muted);font-size:14px}
.bottom-return{margin-top:24px}
@media(prefers-color-scheme:light){:root{color-scheme:light;--bg:#faf9fc;--panel:#f0edf5;--text:#292430;--muted:#665d72;--line:#dbd3e4;--accent:#6b458d}}
@media(max-width:600px){body{font-size:15px}header,nav,main{padding-left:18px;padding-right:18px}header{gap:10px}h1{font-size:27px}h2{font-size:21px}.system-options{grid-template-columns:1fr}pre{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}