:root{--content-width:760px;--page-width:1080px;--bg:#fff;--bg-elevated:#ffffffeb;--bg-subtle:#f6f8fa;--border:#d8dee4;--text:#2b3138;--text-strong:#11161c;--text-muted:#5d6874;--accent:#0b6bcb;--accent-soft:#e3effb;--info:#0b6bcb;--info-soft:#eaf3fd;--success:#1a7f37;--success-soft:#eaf7ee;--warning:#9a6700;--warning-soft:#fff6dc;--danger:#cf222e;--danger-soft:#ffeef0;--spec:#6639ba;--spec-soft:#f3eefc;--measured:#0e7a7a;--measured-soft:#e6f6f5;--font-sans:system-ui, -apple-system, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;--font-mono:"JetBrains Mono", "Cascadia Code", Consolas, "SFMono-Regular", Menlo, "Noto Sans Mono CJK TC", monospace;color-scheme:light}:root[data-theme=dark]{--bg:#0f1419;--bg-elevated:#0f1419eb;--bg-subtle:#171e26;--border:#2d3742;--text:#c9d1d9;--text-strong:#eef2f6;--text-muted:#8d99a6;--accent:#58a6ff;--accent-soft:#14273d;--info:#58a6ff;--info-soft:#122136;--success:#3fb950;--success-soft:#12261a;--warning:#d29922;--warning-soft:#2b2310;--danger:#f85149;--danger-soft:#2f1517;--spec:#b392f0;--spec-soft:#221a33;--measured:#39c5bb;--measured-soft:#102a29;color-scheme:dark}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);overflow-wrap:break-word;-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.8}h1,h2,h3,h4,h5,h6{color:var(--text-strong);line-height:1.4}a{color:var(--accent);text-underline-offset:3px}img{max-width:100%;height:auto}hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}code,kbd,pre{font-family:var(--font-mono);font-variant-ligatures:none}.prose>:first-child{margin-top:0}.prose h2{border-bottom:1px solid var(--border);margin:2.75rem 0 1rem;padding-bottom:.4rem;scroll-margin-top:80px;font-size:1.55rem}.prose h3{margin:2rem 0 .75rem;scroll-margin-top:80px;font-size:1.25rem}.prose h4{margin:1.5rem 0 .5rem;font-size:1.05rem}.prose p,.prose ul,.prose ol{margin:0 0 1.1rem}.prose li+li{margin-top:.25rem}.prose blockquote{border-left:4px solid var(--border);color:var(--text-muted);margin:0 0 1.25rem;padding:.25rem 1rem}.prose img{border:1px solid var(--border);border-radius:8px;margin:1.5rem auto;display:block}.prose kbd{border:1px solid var(--border);border-bottom-width:2px;border-radius:4px;padding:.1rem .4rem;font-size:.85em}.prose :not(pre)>code{background:var(--bg-subtle);border:1px solid var(--border);color:var(--text-strong);border-radius:4px;padding:.15em .4em;font-size:.88em}.code-wrap{margin:0 0 1.25rem;position:relative}.prose pre{border:1px solid var(--border);border-radius:8px;margin:0 0 1.25rem;padding:1rem 1.25rem;font-size:.85rem;line-height:1.65;overflow-x:auto}.code-wrap pre{margin:0}.copy-btn{border:1px solid var(--border);background:var(--bg);color:var(--text-muted);cursor:pointer;opacity:0;border-radius:6px;padding:.15rem .6rem;font-size:.75rem;transition:opacity .15s;position:absolute;top:8px;right:8px}.code-wrap:hover .copy-btn,.copy-btn:focus-visible{opacity:1}@media (hover:none){.copy-btn{opacity:1}}[data-theme=dark] .astro-code,[data-theme=dark] .astro-code span{color:var(--shiki-dark)!important;background-color:var(--shiki-dark-bg)!important}.prose pre.mermaid{background:var(--bg);font-family:var(--font-sans);justify-content:center;display:flex}.prose table{border-collapse:collapse;width:max-content;max-width:100%;margin:0 0 1.25rem;font-size:.9rem;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--border);text-align:left;vertical-align:top;padding:.45rem .8rem}.prose th{background:var(--bg-subtle);color:var(--text-strong);white-space:nowrap}.prose tbody tr:nth-child(2n){background:color-mix(in srgb, var(--bg-subtle) 50%, transparent)}.prose .katex-display{padding:.25rem 0;overflow:auto hidden}.callout{--c:var(--info);--c-soft:var(--info-soft);border-left:4px solid var(--c);background:var(--c-soft);border-radius:8px;margin:0 0 1.25rem;padding:.85rem 1.1rem}.callout>:last-child{margin-bottom:0}.callout .callout-title{color:var(--c);margin-bottom:.35rem;font-weight:700}.callout-success{--c:var(--success);--c-soft:var(--success-soft)}.callout-warning{--c:var(--warning);--c-soft:var(--warning-soft)}.callout-danger{--c:var(--danger);--c-soft:var(--danger-soft)}.callout-spec{--c:var(--spec);--c-soft:var(--spec-soft)}.callout-measured{--c:var(--measured);--c-soft:var(--measured-soft)}details.spoiler{border:1px solid var(--border);border-radius:8px;margin:0 0 1.25rem;padding:.5rem 1rem}details.spoiler summary{cursor:pointer;font-weight:700}details.spoiler[open] summary{margin-bottom:.75rem}.page-title{margin:0 0 .5rem;font-size:1.9rem}.page-lead{color:var(--text-muted);margin:0 0 1.5rem}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}@media (width<=640px){body{font-size:16px}.prose h2{font-size:1.35rem}}footer[data-astro-cid-jo6i4kqk]{border-top:1px solid var(--border);color:var(--text-muted);margin-top:4rem;font-size:.9rem}.inner[data-astro-cid-jo6i4kqk]{max-width:var(--page-width);flex-wrap:wrap;justify-content:space-between;gap:1rem;margin:0 auto;padding:2rem 16px 3rem;display:flex}nav[data-astro-cid-jo6i4kqk]{gap:1rem;display:flex}a[data-astro-cid-jo6i4kqk]{color:var(--text-muted);text-decoration:none}a[data-astro-cid-jo6i4kqk]:hover{color:var(--accent)}a[data-astro-cid-evkijfd6]{color:var(--text-muted);white-space:nowrap;border-radius:6px;padding:.4rem .6rem;font-size:.95rem;text-decoration:none;display:inline-block}a[data-astro-cid-evkijfd6]:hover{color:var(--text-strong);background:var(--bg-subtle)}a[data-astro-cid-evkijfd6].active{color:var(--accent);font-weight:700}header[data-astro-cid-nen7h5rs]{z-index:10;background:var(--bg-elevated);border-bottom:1px solid var(--border);position:sticky;top:0}nav[data-astro-cid-nen7h5rs]{max-width:var(--page-width);align-items:center;gap:1rem;min-height:56px;margin:0 auto;padding:0 16px;display:flex}.brand[data-astro-cid-nen7h5rs]{color:var(--text-strong);white-space:nowrap;align-items:center;gap:.5rem;font-weight:700;text-decoration:none;display:flex}.brand[data-astro-cid-nen7h5rs] svg[data-astro-cid-nen7h5rs]{color:var(--accent)}.internal-links[data-astro-cid-nen7h5rs]{gap:.25rem;margin-left:auto;display:flex;overflow-x:auto}button[data-astro-cid-nen7h5rs]{border:1px solid var(--border);width:36px;height:36px;color:var(--text);cursor:pointer;background:0 0;border-radius:8px;flex-shrink:0;place-items:center;display:grid}button[data-astro-cid-nen7h5rs]:hover{color:var(--accent)}[data-theme=dark] .sun[data-astro-cid-nen7h5rs],[data-theme=light] .moon[data-astro-cid-nen7h5rs]{display:none}@media (width<=640px){nav[data-astro-cid-nen7h5rs]{flex-wrap:wrap;padding-top:8px}.brand[data-astro-cid-nen7h5rs]{flex:1}.internal-links[data-astro-cid-nen7h5rs]{order:3;width:100%;margin-left:0}}main[data-astro-cid-ybatimd6]{max-width:var(--content-width);margin:0 auto;padding:2.5rem 16px 0}main[data-astro-cid-ybatimd6].wide{max-width:var(--page-width)}