:root{--color-canvas: #eef1ed;--color-surface: #fbfcf9;--color-surface-muted: #e5e9e4;--color-ink: #151917;--color-ink-soft: #39423d;--color-muted: #68736d;--color-faint: #8d9791;--color-line: #c9d0cb;--color-line-strong: #9ea9a2;--color-vermilion: #b83d32;--color-vermilion-dark: #8f2e27;--color-jade: #2f6f5e;--color-jade-dark: #245648;--color-amber: #b47a20;--color-code: #121816;--color-code-soft: #1d2723;--color-white: #ffffff;--color-bg: var(--color-canvas);--color-bg-alt: var(--color-surface-muted);--color-text: var(--color-ink);--color-text-secondary: var(--color-ink-soft);--color-text-muted: var(--color-muted);--color-border: var(--color-line);--color-border-light: #dce1dd;--color-accent: var(--color-vermilion);--color-accent-dark: var(--color-vermilion-dark);--color-paper: var(--color-surface);--color-cloud-light: var(--color-surface-muted);--space-2xs: .25rem;--space-xs: .5rem;--space-sm: .75rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4.5rem;--space-4xl: 6rem;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--text-4xl: 2.75rem;--text-5xl: 4rem;--leading-tight: 1.2;--leading-normal: 1.55;--leading-relaxed: 1.85;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--radius-sm: 2px;--radius-md: 4px;--radius-lg: 8px;--shadow-sm: 0 1px 2px rgba(21, 25, 23, .07);--shadow-md: 0 12px 30px rgba(21, 25, 23, .09);--shadow-lg: 0 24px 60px rgba(21, 25, 23, .13);--transition-fast: .15s ease;--transition-base: .24s ease;--transition-slow: .42s cubic-bezier(.2, .7, .2, 1);--container-reading: 720px;--container-content: 960px;--container-wide: 1180px;--header-height: 68px}@media(max-width:720px){:root{--header-height: 60px;--space-3xl: 3.5rem;--space-4xl: 4.5rem;--text-4xl: 2.25rem;--text-5xl: 3rem}}@font-face{font-family:LXGW Neo ZhiSong;src:url(/fonts/LXGWNeoZhiSong.ttf) format("truetype");font-style:normal;font-weight:400 700;font-display:swap}@font-face{font-family:LXGW WenKai;src:url(/fonts/LXGWWenKai-Regular.ttf) format("truetype");font-style:normal;font-weight:400;font-display:swap}@font-face{font-family:LXGW WenKai;src:url(/fonts/LXGWWenKai-Medium.ttf) format("truetype");font-style:normal;font-weight:500 700;font-display:swap}:root{--font-serif: "LXGW Neo ZhiSong", "霞鹜新致宋", "Noto Serif SC", serif;--font-body: "LXGW Neo ZhiSong", "霞鹜新致宋", "Noto Serif SC", serif;--font-mono: "Cascadia Code", "JetBrains Mono", "SFMono-Regular", Consolas, monospace}body{color:var(--color-text);font-family:var(--font-body);font-size:var(--text-base);line-height:var(--leading-relaxed);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5,h6{margin:0;color:var(--color-ink);font-family:var(--font-serif);font-weight:var(--font-bold);line-height:var(--leading-tight);letter-spacing:0;text-wrap:balance}p{margin:0 0 var(--space-md)}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.2em}img{display:block;max-width:100%;height:auto}code,kbd,samp{font-family:var(--font-mono)}.prose{min-width:0;color:var(--color-text-secondary);font-size:1.0625rem;line-height:1.9;overflow-wrap:anywhere}.prose>:first-child{margin-top:0}.prose h2,.prose h3,.prose h4{scroll-margin-top:calc(var(--header-height) + var(--space-lg));color:var(--color-ink)}.prose h2{margin:var(--space-3xl) 0 var(--space-lg);padding-bottom:var(--space-sm);border-bottom:1px solid var(--color-line);font-size:var(--text-2xl)}.prose h2:before{display:inline-block;width:.55rem;height:.55rem;margin-right:var(--space-sm);background:var(--color-vermilion);content:""}.prose h3{margin:var(--space-2xl) 0 var(--space-md);font-size:var(--text-xl)}.prose p,.prose ul,.prose ol,.prose blockquote,.prose table,.prose pre{margin-block:0 var(--space-lg)}.prose ul,.prose ol{padding-left:1.4em}.prose li{margin-bottom:var(--space-xs);padding-left:var(--space-2xs)}.prose a{color:var(--color-jade-dark);text-decoration:underline;text-decoration-color:#2f6f5e66;transition:color var(--transition-fast),text-decoration-color var(--transition-fast)}.prose a:hover{color:var(--color-vermilion-dark);text-decoration-color:currentColor}.prose :not(pre)>code{padding:.12em .36em;border:1px solid var(--color-border-light);border-radius:var(--radius-sm);color:var(--color-vermilion-dark);background:var(--color-surface-muted);font-size:.86em}.prose pre{position:relative;max-width:100%;padding:var(--space-xl);overflow-x:auto;border:1px solid #2f3b36;border-radius:var(--radius-md);color:#d8e4dc;background:var(--color-code);font-family:var(--font-mono);font-size:.875rem;line-height:1.7;overscroll-behavior-inline:contain;tab-size:2}.prose pre code{padding:0;color:inherit;background:transparent;font-size:inherit}.prose blockquote{padding:var(--space-md) var(--space-lg);border-left:4px solid var(--color-jade);color:var(--color-ink-soft);background:#2f6f5e12}.prose blockquote>:last-child{margin-bottom:0}.prose table{display:block;width:max-content;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:var(--text-sm);font-variant-numeric:tabular-nums}.prose th,.prose td{padding:var(--space-sm) var(--space-md);border:1px solid var(--color-line);text-align:left}.prose th{color:var(--color-ink);background:var(--color-surface-muted)}.prose hr{margin:var(--space-3xl) 0;border:0;border-top:1px solid var(--color-line)}@media(max-width:720px){.prose{font-size:1rem;line-height:1.85}.prose h2{margin-top:var(--space-2xl);font-size:var(--text-xl)}.prose pre{padding:var(--space-lg);font-size:.8125rem}}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;gap:var(--space-xs);padding:.65rem 1rem;border:1px solid transparent;border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-semibold);line-height:1;text-decoration:none;cursor:pointer;transition:color var(--transition-fast),background-color var(--transition-fast),border-color var(--transition-fast),transform var(--transition-fast)}.btn:hover{transform:translateY(-1px)}.btn-primary{border-color:var(--color-ink);color:var(--color-white);background:var(--color-ink)}.btn-primary:hover{border-color:var(--color-jade-dark);color:var(--color-white);background:var(--color-jade-dark)}.btn-outline{border-color:var(--color-line-strong);color:var(--color-ink);background:#fbfcf9bf}.btn-outline:hover{border-color:var(--color-vermilion);color:var(--color-vermilion-dark);background:var(--color-surface)}.btn-ghost{color:var(--color-ink-soft);background:transparent}.btn-ghost:hover{color:var(--color-jade-dark);background:#2f6f5e14}.tag,.filter-chip{display:inline-flex;align-items:center;min-height:30px;padding:.3rem .65rem;border:1px solid var(--color-line);border-radius:var(--radius-sm);color:var(--color-muted);background:#fbfcf9b3;font-family:var(--font-mono);font-size:var(--text-xs);line-height:1;letter-spacing:0}.section-heading{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:var(--space-md);margin-bottom:var(--space-xl)}.section-heading:after{height:1px;background:var(--color-line);content:""}.section-heading h2{font-size:var(--text-lg);font-weight:var(--font-semibold)}.section-heading a,.section-heading span{grid-column:3;color:var(--color-muted);font-family:var(--font-mono);font-size:var(--text-xs);text-decoration:none}.eyebrow{display:flex;align-items:center;gap:var(--space-xs);margin:0 0 var(--space-md);color:var(--color-jade-dark);font-family:var(--font-mono);font-size:var(--text-xs);font-weight:var(--font-semibold);line-height:1.4;text-transform:uppercase}.eyebrow:before{width:1.5rem;height:2px;background:var(--color-vermilion);content:""}.status-dot{display:inline-block;width:.5rem;height:.5rem;border-radius:50%;background:var(--color-jade);box-shadow:0 0 0 4px #2f6f5e1f}.page-intro{padding:var(--space-3xl) 0 var(--space-2xl);border-bottom:1px solid var(--color-line)}.page-intro h1{max-width:15ch;font-size:var(--text-4xl)}.page-intro p:last-child{max-width:54ch;margin:var(--space-md) 0 0;color:var(--color-muted)}@media(max-width:720px){.section-heading{grid-template-columns:auto 1fr}.section-heading a,.section-heading span{grid-column:auto}.page-intro{padding-top:var(--space-2xl)}}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--color-canvas)}body{margin:0;min-width:320px;min-height:100vh;overflow-x:clip;background-color:var(--color-canvas);background-image:linear-gradient(rgba(21,25,23,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(21,25,23,.018) 1px,transparent 1px);background-size:32px 32px}main{min-height:calc(100vh - var(--header-height))}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:rgba(184,61,50,.16);touch-action:manipulation}:focus-visible{outline:3px solid rgba(47,111,94,.55);outline-offset:3px}::selection{color:var(--color-white);background:var(--color-jade)}.skip-link{position:fixed;top:var(--space-sm);left:var(--space-sm);z-index:1000;padding:var(--space-sm) var(--space-md);color:var(--color-white);background:var(--color-ink);transform:translateY(-160%);transition:transform var(--transition-fast)}.skip-link:focus{transform:translateY(0)}.shell{width:min(calc(100% - 2rem),var(--container-wide));margin-inline:auto}.content-shell{width:min(calc(100% - 2rem),var(--container-content));margin-inline:auto}.reading-shell{width:min(calc(100% - 2rem),var(--container-reading));margin-inline:auto}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.page-enter{animation:page-enter .56s var(--transition-slow) both}@keyframes page-enter{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@media(max-width:720px){body{background-size:24px 24px}.shell,.content-shell,.reading-shell{width:min(calc(100% - 1.5rem),var(--container-wide))}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.site-footer[data-astro-cid-35ed7um5]{margin-top:var(--space-4xl);border-top:1px solid var(--color-line-strong);color:#cad5ce;background:var(--color-code)}.footer-inner[data-astro-cid-35ed7um5]{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:var(--space-xl);min-height:150px;padding-block:var(--space-xl)}.footer-mark[data-astro-cid-35ed7um5]{padding:var(--space-sm);border:1px solid #3b4842;color:#91a69a;font-family:var(--font-mono);font-size:var(--text-xs)}.footer-copy[data-astro-cid-35ed7um5]{display:flex;flex-direction:column;gap:var(--space-2xs)}.footer-copy[data-astro-cid-35ed7um5] strong[data-astro-cid-35ed7um5]{color:var(--color-white);font-size:var(--text-lg)}.footer-copy[data-astro-cid-35ed7um5] 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var(--transition-fast)}.nav-link[data-astro-cid-vzcar27r]:after{position:absolute;bottom:0;left:var(--space-sm);right:var(--space-sm);height:3px;background:var(--color-vermilion);transform:scaleX(0);transform-origin:left;transition:transform var(--transition-base);content:""}.nav-link[data-astro-cid-vzcar27r]:hover,.nav-link[data-astro-cid-vzcar27r].active{color:var(--color-ink)}.nav-link[data-astro-cid-vzcar27r]:hover:after,.nav-link[data-astro-cid-vzcar27r].active:after{transform:scaleX(1)}@media(max-width:720px){.nav-link[data-astro-cid-vzcar27r]{width:100%;height:auto;padding:var(--space-md) 0;border-bottom:1px solid var(--color-line);font-size:var(--text-base)}.nav-link[data-astro-cid-vzcar27r]:after{display:none}}.site-header[data-astro-cid-qlfjksao]{position:sticky;top:0;z-index:100;height:var(--header-height);border-bottom:1px solid rgba(158,169,162,.7);background:#eef1edf0;backdrop-filter:blur(14px)}.header-inner[data-astro-cid-qlfjksao]{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:100%}.brand[data-astro-cid-qlfjksao]{display:inline-flex;align-items:center;justify-self:start;gap:var(--space-xs);color:var(--color-ink);text-decoration:none}.brand-name[data-astro-cid-qlfjksao]{font-size:var(--text-lg);font-weight:var(--font-bold)}.brand-code[data-astro-cid-qlfjksao],.rss-link[data-astro-cid-qlfjksao]{color:var(--color-muted);font-family:var(--font-mono);font-size:var(--text-xs)}.desktop-nav[data-astro-cid-qlfjksao]{display:flex;align-self:stretch}.header-tools[data-astro-cid-qlfjksao]{display:flex;align-items:center;justify-self:end}.rss-link[data-astro-cid-qlfjksao]{padding:var(--space-xs);text-decoration:none;transition:color var(--transition-fast)}.rss-link[data-astro-cid-qlfjksao]:hover{color:var(--color-vermilion)}.mobile-nav[data-astro-cid-qlfjksao]{display:none}@media(max-width:720px){.header-inner[data-astro-cid-qlfjksao]{grid-template-columns:1fr 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