:root{color-scheme:light;--fg: #1f2328;--fg-muted: #59636e;--bg: #ffffff;--bg-soft: #f6f8fa;--surface-raised: #ffffff;--border: #d1d9e0;--accent: #2563eb;--accent-soft: #eff6ff;--focus: #1d4ed8;--diagram-bg: #ffffff;--citation-code-bg: var(--bg-soft);--tag-claude-fg: #713f12;--tag-claude-bg: #fef3c7;--tag-claude-border: #f59e0b;--tag-codex-fg: #0c4a6e;--tag-codex-bg: #e0f2fe;--tag-codex-border: #38bdf8;--tag-opencode-fg: #581c87;--tag-opencode-bg: #f3e8ff;--tag-opencode-border: #c084fc;--reference-panel-shadow: -14px 0 38px rgb(31 35 40 / .16);--reference-inspector-w: min(42vw, 42rem);--reference-inspector-wide-w: min(56vw, 58rem);--content-w: 880px}@media(prefers-color-scheme:dark){:root:not([data-theme]){color-scheme:dark;--fg: #e6edf3;--fg-muted: #9da7b3;--bg: #0d1117;--bg-soft: #161b22;--surface-raised: #111820;--border: #30363d;--accent: #79c0ff;--accent-soft: #13233a;--focus: #a5d6ff;--tag-claude-fg: #fde68a;--tag-claude-bg: #422006;--tag-claude-border: #b45309;--tag-codex-fg: #bae6fd;--tag-codex-bg: #082f49;--tag-codex-border: #0369a1;--tag-opencode-fg: #e9d5ff;--tag-opencode-bg: #3b0764;--tag-opencode-border: #7e22ce;--reference-panel-shadow: -14px 0 38px rgb(0 0 0 / .5)}}:root[data-theme=dark]{color-scheme:dark;--fg: #e6edf3;--fg-muted: #9da7b3;--bg: #0d1117;--bg-soft: #161b22;--surface-raised: #111820;--border: #30363d;--accent: #79c0ff;--accent-soft: #13233a;--focus: #a5d6ff;--tag-claude-fg: #fde68a;--tag-claude-bg: #422006;--tag-claude-border: #b45309;--tag-codex-fg: #bae6fd;--tag-codex-bg: #082f49;--tag-codex-border: #0369a1;--tag-opencode-fg: #e9d5ff;--tag-opencode-bg: #3b0764;--tag-opencode-border: #7e22ce;--reference-panel-shadow: -14px 0 38px rgb(0 0 0 / .5)}:root[data-theme=light]{color-scheme:light}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}body{margin:0;color:var(--fg);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,sans-serif;line-height:1.75;transition:padding-right .18s ease}.site-header{border-bottom:1px solid var(--border);padding:.6rem 1.25rem;display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem 1.5rem;position:sticky;top:0;background:var(--bg);z-index:10}.site-header .brand{font-weight:700;font-size:1.05rem;color:var(--fg);text-decoration:none}.site-header nav{display:flex;flex-wrap:wrap;gap:.9rem}.site-header nav a{color:var(--fg-muted);text-decoration:none;font-size:.9rem}.site-header nav a:hover{color:var(--accent)}.theme-toggle{min-width:44px;min-height:44px;border:1px solid var(--border);border-radius:999px;color:var(--fg);background:var(--bg-soft);display:inline-flex;align-items:center;justify-content:center;gap:.35rem;padding:.35rem .7rem;cursor:pointer;font:inherit;font-size:.85rem}.theme-toggle[hidden]{display:none}.theme-toggle:hover{border-color:var(--accent)}main{max-width:var(--content-w);margin:0 auto;padding:2rem 1.25rem 4rem}.site-footer{border-top:1px solid var(--border);padding:1.25rem;color:var(--fg-muted);font-size:.85rem;max-width:var(--content-w);margin:0 auto}h1{font-size:1.9rem;line-height:1.3;margin:.4rem 0 1.2rem}h2{font-size:1.35rem;margin:2.4rem 0 .8rem;padding-top:.6rem;border-top:1px solid var(--border)}h3{font-size:1.1rem;margin:1.6rem 0 .5rem}p{margin:.7rem 0}a{color:var(--accent)}code{font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:.88em;background:var(--bg-soft);border:1px solid var(--border);border-radius:4px;padding:.1em .35em;overflow-wrap:anywhere}pre{background:var(--bg-soft);border:1px solid var(--border);border-radius:8px;padding:.9rem 1rem;overflow-x:auto;line-height:1.55}pre code{background:none;border:none;padding:0;font-size:.85rem;overflow-wrap:normal;word-break:normal}blockquote{margin:.9rem 0;padding:.55rem 1rem;border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 6px 6px 0;color:var(--fg);font-size:.92rem;min-width:0;overflow-wrap:anywhere}blockquote p{margin:.25rem 0}blockquote code{background:var(--citation-code-bg)}.reference-agents{display:flex;flex-wrap:wrap;gap:.4rem;margin:0 0 .45rem}.reference-agent{display:inline-flex;align-items:center;min-height:1.5rem;padding:.05rem .55rem;border:1px solid;border-radius:999px;font-size:.72rem;font-weight:700;line-height:1.35;letter-spacing:.02em;white-space:nowrap}.reference-agent--claude{color:var(--tag-claude-fg);background:var(--tag-claude-bg);border-color:var(--tag-claude-border)}.reference-agent--codex{color:var(--tag-codex-fg);background:var(--tag-codex-bg);border-color:var(--tag-codex-border)}.reference-agent--opencode{color:var(--tag-opencode-fg);background:var(--tag-opencode-bg);border-color:var(--tag-opencode-border)}.code-reference-link.is-active code{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}body.reference-inspector-open{padding-right:var(--reference-inspector-w)}body.reference-inspector-open.reference-inspector-wide{padding-right:var(--reference-inspector-wide-w)}.reference-inspector{--reference-highlight-bg: var(--tag-codex-bg);--reference-highlight-border: var(--tag-codex-border);position:fixed;inset:0 0 0 auto;z-index:30;display:flex;flex-direction:column;width:var(--reference-inspector-w);height:100vh;height:100dvh;color:var(--fg);background:var(--surface-raised);border-left:1px solid var(--border);box-shadow:var(--reference-panel-shadow)}body.reference-inspector-wide .reference-inspector{width:var(--reference-inspector-wide-w)}.reference-inspector[hidden]{display:none}.reference-inspector[data-agent=claude]{--reference-highlight-bg: var(--tag-claude-bg);--reference-highlight-border: var(--tag-claude-border)}.reference-inspector[data-agent=opencode]{--reference-highlight-bg: var(--tag-opencode-bg);--reference-highlight-border: var(--tag-opencode-border)}.reference-inspector__header{flex:0 0 auto;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.8rem 1rem;padding:1rem 1rem .9rem;background:var(--surface-raised);border-bottom:1px solid var(--border)}.reference-inspector__identity{display:contents}.reference-inspector__orientation{grid-column:1;grid-row:1;display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;margin-bottom:.35rem}.reference-inspector__eyebrow{color:var(--fg-muted);font-size:.72rem;font-weight:700;letter-spacing:.08em;line-height:1.3;text-transform:uppercase}.reference-inspector__path{grid-column:1 / -1;grid-row:2;margin:0;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:.88rem;font-weight:700;line-height:1.45;overflow-wrap:anywhere}.reference-inspector__range{grid-column:1 / -1;grid-row:3;margin:.2rem 0 0;color:var(--fg-muted);font-size:.76rem;line-height:1.4}.reference-inspector__status:before{content:" · "}.reference-inspector__actions{grid-column:2;grid-row:1;display:flex;flex-wrap:wrap;align-content:flex-start;justify-content:flex-end;gap:.4rem}.reference-inspector__actions button,.reference-inspector__github{min-height:40px;padding:.35rem .65rem;border:1px solid var(--border);border-radius:6px;color:var(--fg);background:var(--bg-soft);font:inherit;font-size:.76rem;font-weight:650;line-height:1.3;text-decoration:none;cursor:pointer}.reference-inspector__actions button:hover,.reference-inspector__github:hover{border-color:var(--accent);color:var(--accent)}.reference-inspector__github{display:inline-flex;align-items:center;gap:.25rem}.reference-inspector__context{position:sticky;top:0;z-index:2;flex:0 0 auto;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:.65rem;min-height:48px;padding:.25rem .85rem;background:var(--surface-raised);border-bottom:1px solid var(--border);box-shadow:0 4px 12px #1f23280f}.reference-inspector__back{min-height:40px;padding:.3rem .6rem;border:1px solid var(--border);border-radius:6px;color:var(--fg);background:var(--bg-soft);font:inherit;font-size:.76rem;font-weight:700;cursor:pointer}.reference-inspector__back:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.reference-inspector__back:disabled{opacity:.42;cursor:default}.reference-inspector__current,.reference-inspector__definition-hint{margin:0}.reference-inspector__current{display:flex;min-width:0;align-items:baseline;gap:.45rem;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace}.reference-inspector__current-kind{flex:0 0 auto;color:var(--fg-muted);font-size:.7rem;font-weight:750;letter-spacing:.04em;text-transform:uppercase}.reference-inspector__current-symbol{overflow:hidden;color:var(--fg);font-size:.8rem;text-overflow:ellipsis;white-space:nowrap}.reference-inspector__definition-hint{color:var(--fg-muted);font-size:.7rem;white-space:nowrap}.reference-inspector__definition-hint kbd{min-width:1.5rem;padding:.08rem .25rem;border:1px solid var(--border);border-bottom-width:2px;border-radius:4px;color:var(--fg);background:var(--bg-soft);font:inherit;font-weight:750;text-align:center}.reference-inspector__source{flex:1 1 auto;min-height:0;width:100%;margin:0;padding:.75rem 0 1.5rem;overflow:auto;border:0;border-radius:0;color:var(--fg);background:var(--bg-soft);font-size:.78rem;line-height:1.55;tab-size:2}.reference-inspector__code{display:block;min-width:max-content}.reference-inspector__line{display:grid;grid-template-columns:3.75rem minmax(max-content,1fr);min-width:100%;color:var(--fg)}.reference-inspector__line.is-cited{background:var(--reference-highlight-bg);box-shadow:inset 3px 0 0 var(--reference-highlight-border)}.reference-inspector__line.is-definition{background:var(--accent-soft);box-shadow:inset 3px 0 0 var(--accent)}.reference-inspector__line-number{padding:0 .8rem 0 .5rem;color:var(--fg-muted);text-align:right;user-select:none}.reference-inspector__line-text{padding-right:1.25rem;white-space:pre}.reference-inspector__token{color:var(--syntax-light, inherit)}.reference-inspector__token.is-italic{font-style:italic}.reference-inspector__token.is-bold{font-weight:700}.reference-inspector__token.is-underlined{text-decoration:underline}.reference-inspector.is-definition-mode .reference-inspector__token[data-target]{border-radius:2px;outline:2px solid var(--accent);outline-offset:1px;background:var(--accent-soft);cursor:pointer;text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:1px;text-underline-offset:.18em}@media(prefers-color-scheme:dark){:root:not([data-theme]) .reference-inspector__token{color:var(--syntax-dark, var(--syntax-light, inherit))}}:root[data-theme=dark] .reference-inspector__token{color:var(--syntax-dark, var(--syntax-light, inherit))}:root[data-theme=light] .reference-inspector__token{color:var(--syntax-light, inherit)}table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.92rem;display:block;overflow-x:auto}th,td{border:1px solid var(--border);padding:.5rem .7rem;text-align:left;vertical-align:top}th{background:var(--bg-soft)}.hero{margin-bottom:2rem}.hero .sub{color:var(--fg-muted);font-size:1.05rem}.map-wrap{margin:1.5rem 0;overflow-x:auto}.map{display:block;min-width:720px}.map a rect{fill:var(--surface-raised);stroke:var(--border);stroke-width:1.5;transition:all .15s}.map a:hover rect{fill:var(--accent-soft);stroke:var(--accent)}.map a text{fill:var(--fg);pointer-events:none}.map .map__label{fill:var(--fg)}.map .map__node{fill:var(--surface-raised);stroke:var(--border)}.map .map__muted,.map .map__marker{fill:var(--fg-muted)}.map .arrow{stroke:var(--fg-muted);stroke-width:1.5;fill:none;marker-end:url(#arrowhead)}.map .arrow-label{fill:var(--fg-muted);font-size:11px}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem;margin:1.2rem 0}.card{border:1px solid var(--border);border-radius:8px;padding:1rem 1.1rem;background:var(--surface-raised);text-decoration:none;color:var(--fg);display:block}.card:hover{border-color:var(--accent);background:var(--accent-soft)}.card .num{color:var(--accent);font-weight:700;font-size:.85rem}.card .t{font-weight:650;margin:.15rem 0}.card .d{color:var(--fg-muted);font-size:.88rem}.chapter{min-width:0}.chapter>*{max-width:100%}.kicker{color:var(--accent);font-size:.85rem;font-weight:600;letter-spacing:.04em}h1 .zh{color:var(--fg-muted);font-weight:500;font-size:.75em}.diagram{margin:1.4rem 0;min-width:0}.diagram__image{display:block;width:100%;max-width:100%;height:auto;padding:.75rem;border:1px solid var(--border);border-radius:8px;background:var(--diagram-bg)}.diagram figcaption{margin-top:.45rem;color:var(--fg-muted);font-size:.85rem}.diagram__source{margin-top:.55rem;color:var(--fg-muted);font-size:.85rem}.diagram__source summary{cursor:pointer}.diagram__source pre{max-width:100%}.prevnext{display:flex;justify-content:space-between;gap:1rem;margin-top:3rem;padding-top:1.2rem;border-top:1px solid var(--border);font-size:.92rem}#search{--pagefind-ui-primary: var(--accent);--pagefind-ui-text: var(--fg);--pagefind-ui-background: var(--surface-raised);--pagefind-ui-border: var(--border);--pagefind-ui-tag: var(--bg-soft)}@media(prefers-color-scheme:dark){:root:not([data-theme]) .astro-code,:root:not([data-theme]) .astro-code span{color:var(--shiki-dark)!important;background-color:var(--shiki-dark-bg)!important}}:root[data-theme=dark] .astro-code,:root[data-theme=dark] .astro-code span{color:var(--shiki-dark)!important;background-color:var(--shiki-dark-bg)!important}@media(max-width:720px){.site-header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.25rem;padding:.55rem 1rem 0}.site-header .brand{grid-column:1;grid-row:1;line-height:2.25rem}.theme-toggle{grid-column:2;grid-row:1}.site-header nav{display:flex;flex-wrap:nowrap;gap:.85rem;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin;grid-column:1 / -1;grid-row:2}.site-header nav a{display:inline-flex;flex:0 0 auto;align-items:center;min-height:44px;white-space:nowrap}main{padding:1.5rem 1rem 3rem}.site-footer{padding-inline:1rem}h1{font-size:1.7rem}.cards{grid-template-columns:1fr}.prevnext{flex-wrap:wrap}.prevnext span{flex:1 1 100%}.prevnext span:last-child{text-align:right}}@media(max-width:900px){body.reference-inspector-open,body.reference-inspector-open.reference-inspector-wide{padding-right:0}.reference-inspector,body.reference-inspector-wide .reference-inspector{inset:auto 0 0;width:100%;height:min(72vh,42rem);max-height:72vh;border-top:1px solid var(--border);border-left:0;box-shadow:0 -14px 38px #1f232833}.reference-inspector__header{grid-template-columns:minmax(0,1fr);gap:.65rem;padding:.8rem 1rem .7rem}.reference-inspector__actions{grid-column:1;grid-row:4;justify-content:flex-start}.reference-inspector__size{display:none}.reference-inspector__context{grid-template-columns:auto minmax(0,1fr);gap:.5rem;padding-inline:.7rem}.reference-inspector__definition-hint{display:none}.reference-inspector__source{font-size:.76rem}}@media(prefers-reduced-motion:reduce){body{transition:none}}