:root{--bg-deep:oklch(0.13 0.03 285);--bg-base:oklch(0.17 0.035 285);--bg-surface:oklch(0.22 0.04 285);--accent:oklch(0.5 0.2 285);--accent-light:oklch(0.74 0.16 285);--text-primary:oklch(0.95 0.01 285);--text-secondary:oklch(0.72 0.02 285);--border:oklch(0.30 0.04 285);--pink:oklch(0.65 0.25 350);--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,monospace}
*,*::before,*::after{box-sizing:border-box}*{margin:0}
html{line-height:1.6;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg-deep);color:var(--text-secondary);font-size:1rem}
.paper-topbar{border-bottom:1px solid var(--border);padding:1rem 1.5rem}
.paper-topbar a{color:var(--accent-light);text-decoration:none;font-size:0.875rem}
.paper-topbar a:hover{color:var(--text-primary)}
.paper-topbar ol{list-style:none;margin:0;padding:0;font-size:0.875rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.paper-topbar li{display:inline}
.paper-topbar li+li::before{content:"/";margin:0 0.5rem;color:var(--border)}
main.paper{max-width:44rem;margin:0 auto;padding:3rem 1.5rem 5rem}
.paper article>*+*{margin-top:1.15rem}
.paper h1{font-size:clamp(1.9rem,4vw,2.6rem);color:var(--text-primary);letter-spacing:-0.02em;line-height:1.2}
.paper .paper-meta{color:var(--text-secondary);font-size:0.9rem;margin-top:0.5rem}
.paper h2{font-size:1.6rem;color:var(--text-primary);margin-top:2.5rem;letter-spacing:-0.01em}
.paper h3{font-size:1.25rem;color:var(--text-primary);margin-top:2rem}
.paper h4{font-size:1.05rem;color:var(--text-primary);margin-top:1.5rem}
.paper p,.paper li{line-height:1.7}
.paper a{color:var(--accent-light);text-decoration:underline;text-underline-offset:2px}
.paper a:hover{color:var(--text-primary)}
.paper ul,.paper ol{padding-left:1.5rem}
.paper li+li{margin-top:0.35rem}
.paper blockquote{border-left:3px solid var(--accent);padding-left:1rem;color:var(--text-secondary);font-style:italic}
.paper code{font-family:var(--mono);font-size:0.9em;background:var(--bg-surface);padding:0.1em 0.35em;border-radius:4px;overflow-wrap:anywhere}
.paper pre{background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;padding:1rem;overflow-x:auto}
.paper pre code{background:none;padding:0;font-size:0.85rem;line-height:1.5}
.paper .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.paper table{width:100%;border-collapse:collapse;font-size:0.9rem}
.paper th,.paper td{border:1px solid var(--border);padding:0.5rem 0.75rem;text-align:left}
.paper th{background:var(--bg-surface);color:var(--text-primary)}
.paper figure{margin:1.75rem 0;text-align:center}
.paper figure svg,.paper figure img{max-width:100%;height:auto;margin:0 auto}
.paper figcaption{color:var(--text-secondary);font-size:0.85rem;margin-top:0.5rem}
.lang-switch{max-width:44rem;margin:0 auto;padding:0.75rem 1.5rem 0;font-size:0.85rem;color:var(--text-secondary);text-align:right}
.lang-switch a{color:var(--accent-light);text-decoration:none}
.lang-switch a:hover{color:var(--text-primary)}
.lang-switch [aria-current]{color:var(--text-primary);font-weight:600}
.lang-switch .pd{letter-spacing:0}
.read-next{max-width:44rem;margin:3rem auto 0;padding:1.5rem 1.5rem 0;border-top:1px solid var(--border)}
.read-next h2{font-size:1.1rem;color:var(--text-primary);letter-spacing:-0.01em;margin-bottom:1rem}
.read-next ul{list-style:none;padding:0;margin:0;display:grid;gap:0.75rem}
.read-next li{margin:0}
.read-next li a{display:block;background:var(--bg-surface);border:1px solid var(--border);border-radius:0.6rem;padding:0.85rem 1.1rem;text-decoration:none;transition:border-color 0.2s,box-shadow 0.2s}
.read-next li a:hover{border-color:var(--accent);box-shadow:0 4px 16px oklch(0 0 0 / 0.3)}
.read-next .rn-t{display:block;color:var(--text-primary);font-weight:600;margin-bottom:0.25rem}
.read-next .rn-d{display:block;color:var(--text-secondary);font-size:0.88rem;line-height:1.5}
.read-next .rn-more{margin-top:1rem;font-size:0.85rem;color:var(--text-secondary)}
.read-next .rn-more a{color:var(--accent-light);text-decoration:none}
.read-next .rn-more a:hover{color:var(--text-primary)}
.read-next .rn-more .pd{letter-spacing:0}
.paper-toc{background:var(--bg-surface);border:1px solid var(--border);border-radius:0.6rem;padding:1.1rem 1.4rem}
.paper-toc .paper-toc-h{font-size:0.8rem;color:var(--text-secondary);margin:0 0 0.6rem;letter-spacing:0.06em;text-transform:uppercase;font-weight:600}
.paper-toc ol{margin:0;padding-left:1.2rem;display:grid;gap:0.35rem}
.paper-toc li{line-height:1.5}
.paper-toc a{color:var(--accent-light);text-decoration:none}
.paper-toc a:hover{color:var(--text-primary);text-decoration:underline}
.paper-hero{max-width:56rem;margin:2.5rem auto 0;padding:0 1.5rem}
.paper-hero img{width:100%;height:auto;border-radius:14px;border:1px solid var(--border)}
.paper-hero+main.paper{padding-top:1.5rem}
.paper .fig-open{display:block;pointer-events:none}
.paper .fig-backdrop,.paper .fig-close{display:none}
@media (hover:hover) and (pointer:fine){
.paper .fig-open{pointer-events:auto;cursor:zoom-in}
.paper .fig-zoom:target{position:fixed;inset:0;z-index:1000;margin:0;display:flex;align-items:center;justify-content:center;background:oklch(0.13 0.03 285 / 0.94);cursor:zoom-out}
.paper .fig-zoom:target .fig-open{pointer-events:none}
.paper .fig-zoom:target .fig-open svg{width:95vw!important;height:90vh!important;max-width:none!important;max-height:none!important}
.paper .fig-zoom:target .fig-backdrop{display:block;position:fixed;inset:0;z-index:-1}
.paper .fig-zoom:target .fig-close{display:flex;align-items:center;justify-content:center;position:fixed;top:1.25rem;right:1.25rem;width:2.5rem;height:2.5rem;border-radius:100px;background:var(--bg-surface);border:1px solid var(--border);color:var(--text-primary);font-size:1.2rem;line-height:1;text-decoration:none;cursor:pointer}
.paper .fig-zoom:target .fig-close:hover,.paper .fig-zoom:target .fig-close:focus-visible{border-color:var(--accent);color:var(--accent-light)}
.paper .fig-zoom:target figcaption{display:none}
}
.paper hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}
.paper math{font-size:1.05em}
.paper math[display="block"]{display:block;margin:1.5rem 0;text-align:center;overflow-x:auto}
.paper .footnote{font-size:0.85rem;color:var(--text-secondary)}
.paper .footnote-ref{text-decoration:none}
.paper-cta{border-top:1px solid var(--border);text-align:center;padding:3rem 1.5rem}
.coffee{display:inline-flex;align-items:center;gap:0.4rem;padding:0.5rem 1.2rem;border:1px solid var(--border);border-radius:100px;color:var(--text-secondary);font-size:0.875rem;text-decoration:none;transition:border-color 0.2s,color 0.2s}
.coffee:hover{border-color:var(--accent);color:var(--accent-light)}
.coffee svg,.coffee b{color:var(--pink)}
.coffee svg{width:16px;height:16px;fill:none;stroke:var(--pink);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.paper-foot{border-top:1px solid var(--border);text-align:center;padding:2rem 1.5rem;color:var(--text-secondary);font-size:0.85rem}
.foot-links{margin-bottom:0.75rem}
.foot-links a{margin:0 0.5rem;color:var(--accent-light);text-decoration:none}
.foot-links a:hover{color:var(--text-primary)}
.pd{color:var(--pink);font-size:1.5em;line-height:0;letter-spacing:-0.15em}
.foot-links .pd{font-size:2em;vertical-align:-0.15em;letter-spacing:0}