@layer base{:root{color:var(--ink);background:var(--page);--page:#fff;--surface:#f6f8f6;--surface-raised:#fff;--ink:#25352e;--muted:#6d7972;--faint:#6f7b73;--line:#e5eae5;--accent-light:#23754c;--accent-dark:#8ccca7;--accent-soft-light:#eaf3ed;--accent-soft-dark:#203e2d;--accent:var(--accent-light);--accent-bright:var(--accent-light);--accent-soft:var(--accent-soft-light);--theme-sun:inline-block;--theme-moon:none;--code:#f5f7f6;--logo-ink:#fff;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.65}:root[data-accent=ocean]{--accent-light:#19669e;--accent-dark:#a0ceef;--accent-soft-light:#e9f2f9;--accent-soft-dark:#16374d}:root[data-accent=plum]{--accent-light:#7950a2;--accent-dark:#d3b0ec;--accent-soft-light:#f2ecf8;--accent-soft-dark:#382543}:root[data-theme=dark]{--page:#151a18;--surface:#1c2320;--surface-raised:#202824;--ink:#e2e9e3;--muted:#a2afa5;--faint:#84958a;--line:#303b34;--accent:var(--accent-dark);--accent-bright:var(--accent-dark);--accent-soft:var(--accent-soft-dark);--theme-sun:none;--theme-moon:inline-block;--code:#1c2520;--logo-ink:#153023;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--page:#151a18;--surface:#1c2320;--surface-raised:#202824;--ink:#e2e9e3;--muted:#a2afa5;--faint:#84958a;--line:#303b34;--accent:var(--accent-dark);--accent-bright:var(--accent-dark);--accent-soft:var(--accent-soft-dark);--theme-sun:none;--theme-moon:inline-block;--code:#1c2520;--logo-ink:#153023;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--page);color:var(--ink);scroll-padding-top:108px}body{min-width:320px;margin:0}button,input{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button,input,a,summary{outline-offset:4px}:focus-visible{outline:2px solid var(--accent)}::selection{color:var(--ink);background:var(--accent-soft)}.icon{vertical-align:middle;flex:none;width:20px;height:20px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;color:var(--page);background:var(--accent);border-radius:6px;padding:10px 20px;position:fixed;top:-80px;left:24px}.skip-link:focus{top:12px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}}@layer layout{.site-header{z-index:20;background:var(--page);border-bottom:1px solid var(--line);position:sticky;top:0}.header-inner{align-items:center;gap:42px;max-width:1536px;height:82px;min-height:82px;margin:0 auto;padding:0 38px;display:flex}.site-brand{letter-spacing:-.6px;align-items:center;gap:12px;min-width:0;max-width:320px;font-size:22px;font-weight:520;line-height:1.2;display:flex}.site-brand strong{overflow-wrap:anywhere;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-weight:740;display:-webkit-box;overflow:hidden}.site-brand>span{min-width:0}.site-brand small{color:var(--muted);letter-spacing:1.1px;overflow-wrap:anywhere;-webkit-line-clamp:1;-webkit-box-orient:vertical;margin-top:5px;font-size:9px;font-weight:500;line-height:1.5;display:-webkit-box;overflow:hidden}.site-mark{width:36px;height:36px;color:var(--accent-bright);flex:none}.header-search{background:var(--surface);border:1px solid var(--line);min-width:130px;max-width:480px;height:39px;color:var(--muted);border-radius:7px;flex:1;align-items:center;gap:11px;padding:0 9px 0 13px;display:flex}.header-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.header-search form{align-items:center;gap:11px;width:100%;display:flex}:where(.header-search form)>.icon{width:17px;height:17px}.header-search input{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;outline:0;padding:0;font-size:12px}.header-search input::placeholder{color:var(--muted);opacity:1}.header-search button{background:var(--page);width:27px;height:26px;color:var(--muted);border:1px solid var(--line);border-radius:4px;place-items:center;display:grid}:where(.header-search button) .icon{width:15px;height:15px}.header-actions{align-items:center;gap:20px;margin-left:auto;display:flex}.language-switch{white-space:nowrap;align-items:center;gap:14px;font-size:12px;display:flex}.language-switch a{color:var(--muted)}.language-switch a[aria-current]{color:var(--accent);font-weight:650}.language-switch a:hover{color:var(--accent)}.translation-unavailable{color:var(--faint);cursor:help;text-decoration:line-through}.header-divider{background:var(--line);width:1px;height:19px}.theme-toggle{width:32px;height:32px;color:var(--muted);background:0 0;border:0;border-radius:6px;place-items:center;display:grid}.theme-toggle:hover{background:var(--surface);color:var(--accent)}:where(.theme-toggle) .icon{width:18px;height:18px}.theme-toggle .theme-sun{display:var(--theme-sun)}.theme-toggle .theme-moon{display:var(--theme-moon)}.reader-layout{grid-template-columns:220px minmax(0,1fr) 184px;gap:42px;max-width:1536px;margin:0 auto;padding:0 38px;display:grid}.desktop-navigation{border-right:1px solid var(--line);padding-right:24px}.sidebar-sticky{flex-direction:column;height:calc(100dvh - 82px);padding-top:37px;display:flex;position:sticky;top:82px}.sidebar-sticky>nav{padding:4px 2px 24px 0;overflow:auto}.sidebar-label{letter-spacing:1.4px;color:var(--faint);margin:0 0 20px 10px;font-size:10px;font-weight:700}.navigation-list{margin:0;padding:0;font-size:13px;list-style:none}.navigation-list>li{margin-bottom:4px}.navigation-list a,.navigation-list summary{min-height:37px;color:var(--muted);border-radius:5px;align-items:center;gap:10px;padding:8px 11px;line-height:1.6;display:flex}.navigation-list a:hover,.navigation-list summary:hover{background:var(--surface);color:var(--ink)}.navigation-list a[aria-current=page]{color:var(--accent);background:var(--accent-soft);font-weight:600}.navigation-dot{opacity:.5;background:currentColor;border-radius:50%;flex:none;width:4px;height:4px}.navigation-list a[aria-current] .navigation-dot{opacity:1}.navigation-group{margin-top:10px}.navigation-group summary{color:var(--ink);cursor:pointer;font-weight:600;list-style:none}.navigation-group summary::-webkit-details-marker{display:none}:where(.navigation-group summary) .icon{width:13px;height:13px;margin-left:auto}:where(.navigation-group[open]>summary) .icon{transform:rotate(90deg)}.navigation-group>.navigation-list{border-left:1px solid var(--line);margin-top:5px;margin-left:13px;padding-left:10px}.navigation-overview{margin-left:22px}.sidebar-note{color:var(--faint);white-space:nowrap;align-items:center;gap:7px;margin:auto 0 0;padding:25px 0;font-size:9px;display:flex}.status-dot{background:var(--accent-bright);border-radius:50%;width:5px;height:5px}.reading-column{min-width:0}.article-main{min-width:0;max-width:780px;margin:0 auto;padding:34px 0 0}.breadcrumbs{min-height:22px;color:var(--faint);flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:37px;font-size:11px;display:flex}.breadcrumbs>a{display:inline-flex}:where(.breadcrumbs>a) .icon{width:15px;height:15px}.breadcrumb-part{align-items:center;gap:12px;display:inline-flex}:where(.breadcrumb-part) .icon{width:9px;height:9px}.breadcrumb-part [aria-current]{color:var(--muted)}.toc-sticky{max-height:calc(100dvh - 145px);padding-left:6px;position:sticky;top:117px;overflow:auto}.table-of-contents{padding-top:37px}.toc-sticky .sidebar-label{margin-bottom:18px;margin-left:0}.toc-sticky ul{border-left:1px solid var(--line);margin:0;padding:0;list-style:none}.toc-sticky a{color:var(--muted);padding:7px 0 7px 14px;font-size:12px;line-height:1.7;display:block}.toc-sticky li a[aria-current=location]{color:var(--accent);box-shadow:-2px 0 0 var(--accent);font-weight:600}.toc-sticky a:hover{color:var(--accent)}.toc-sticky li[data-depth="3"] a{padding-left:24px}.toc-sticky li[data-depth="4"] a,.toc-sticky li[data-depth="5"] a,.toc-sticky li[data-depth="6"] a{padding-left:34px}.toc-sticky .toc-top{color:var(--faint);margin-top:25px;padding:0}.mobile-navigation{display:none}}@layer article{.article-header{border-bottom:1px solid var(--line);margin-bottom:31px;padding-bottom:28px}.article-kicker{letter-spacing:1.65px;color:var(--accent);margin:0 0 13px;font-size:9px;font-weight:700}h1{letter-spacing:-1.2px;text-wrap:balance;overflow-wrap:anywhere;margin:0;font-size:clamp(28px,2.65vw,39px);font-weight:720;line-height:1.32}.article-description{color:var(--muted);max-width:620px;margin:16px 0 20px;font-size:14px;line-height:1.85}.article-meta{color:var(--faint);flex-wrap:wrap;align-items:center;gap:9px;font-size:10px;display:flex}.article-meta>span{align-items:center;gap:5px;display:inline-flex}.article-meta .icon{width:12px;height:12px;margin-right:2px}.meta-separator{color:var(--line)}.markdown-content{overflow-wrap:anywhere;font-size:15px;line-height:1.95}.markdown-content>:first-child{margin-top:0}.markdown-content h1,.markdown-content h2,.markdown-content h3,.markdown-content h4,.markdown-content h5,.markdown-content h6{color:var(--ink);scroll-margin-top:105px;font-weight:650;line-height:1.45}.markdown-content h1{margin:40px 0 18px;font-size:28px}.markdown-content h2{letter-spacing:-.3px;margin:38px 0 16px;font-size:21px}.markdown-content h3{margin:28px 0 12px;font-size:17px}.markdown-content h4,.markdown-content h5,.markdown-content h6{margin:24px 0 10px;font-size:14px}.markdown-content p{margin:0 0 19px}.markdown-content a{color:var(--accent);text-underline-offset:3px;text-decoration:underline;text-decoration-thickness:1px}.markdown-content a:hover{text-decoration-thickness:2px}.markdown-content :where(h1,h2,h3,h4,h5,h6) a{text-decoration:none}.markdown-content .heading-anchor{opacity:0;margin-left:8px;font-weight:400}.markdown-content :is(h1,h2,h3,h4,h5,h6):hover .heading-anchor,.markdown-content .heading-anchor:focus-visible{opacity:1}.markdown-content strong{color:var(--ink);font-weight:650}.markdown-content ul,.markdown-content ol{margin:14px 0 24px;padding-left:24px}.markdown-content li{margin:6px 0;padding-left:3px}.markdown-content li::marker{color:var(--faint)}.markdown-content li>p{margin:8px 0}.markdown-content li>ul,.markdown-content li>ol{margin:4px 0 8px}.markdown-content .contains-task-list{padding-left:2px;list-style:none}.markdown-content input[type=checkbox]{accent-color:var(--accent);margin-right:9px}.markdown-content blockquote{border-left:3px solid var(--accent-bright);color:var(--muted);margin:25px 0;padding:1px 20px}.markdown-content blockquote p{margin:8px 0}.markdown-content hr{border:0;border-top:1px solid var(--line);margin:32px 0}.markdown-content code{background:var(--code);color:var(--accent);border:1px solid var(--line);border-radius:4px;padding:2px 5px;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.85em}.markdown-content pre{border:1px solid var(--line);background:var(--code);border-radius:7px;margin:21px 0 26px;padding:19px 20px;font-size:12px;line-height:1.85;position:relative;overflow-x:auto}.markdown-content pre.has-copy{padding-top:37px}.markdown-content pre code{min-width:max-content;color:var(--ink);font-size:inherit;background:0 0;border:0;border-radius:0;padding:0;display:block}.markdown-content .copy-code{color:var(--muted);background:var(--surface-raised);border:1px solid var(--line);border-radius:4px;padding:2px 9px;font-family:inherit;font-size:10px;position:absolute;top:8px;right:10px}.markdown-content .copy-code:hover{color:var(--accent);border-color:var(--accent)}.markdown-content table{border-collapse:collapse;width:100%;margin:24px 0;font-size:12px;display:block;overflow-x:auto}.markdown-content th{background:var(--surface);text-align:left;font-weight:650}.markdown-content th,.markdown-content td{border:1px solid var(--line);padding:11px 15px}.markdown-content tbody tr:hover{background:var(--surface)}.markdown-content img{border-radius:7px;max-width:100%;height:auto;margin:25px auto;display:block}.markdown-content .article-image{cursor:zoom-in;background:0 0;border:0;border-radius:7px;width:fit-content;max-width:100%;margin:25px auto;padding:0;display:block}.markdown-content .article-image img{margin:0}.markdown-content .callout{background:var(--accent-soft);border:1px solid color-mix(in srgb, var(--accent) 18%, transparent);border-left:3px solid var(--accent-bright);border-radius:0 6px 6px 0;margin:24px 0;padding:17px 20px;font-size:13px}.markdown-content .callout-title{color:var(--accent);align-items:center;gap:8px;margin:0 0 5px;font-size:12px;font-weight:700;display:flex}.markdown-content .callout-title:before{content:"i";border:1px solid;border-radius:50%;place-items:center;width:15px;height:15px;font-family:Georgia,serif;font-size:10px;display:inline-grid}.markdown-content .callout>:last-child{margin-bottom:0}.markdown-content .callout-warning,.markdown-content .callout-caution{--accent:#98651b;--accent-bright:#c38c38;--accent-soft:color-mix(in srgb, #d8aa53 12%, var(--page))}.markdown-content .callout-danger,.markdown-content .callout-important{--accent:#b95f60;--accent-bright:#c77676;--accent-soft:color-mix(in srgb, #c77676 10%, var(--page))}.markdown-content .wiki-tabs{border:1px solid var(--line);border-radius:6px;margin:25px 0;overflow:hidden}.markdown-content .wiki-tab+.wiki-tab{border-top:1px solid var(--line)}.markdown-content .wiki-tab summary{cursor:pointer;color:var(--accent);background:var(--surface);padding:10px 17px;font-size:12px;font-weight:650}.markdown-content .wiki-tab>:not(summary){margin-left:18px;margin-right:18px}.markdown-content .wiki-tab>:nth-child(2){margin-top:17px}.markdown-content .wiki-tab>:last-child{margin-bottom:17px}.markdown-content .wiki-tab-list{border-bottom:1px solid var(--line);background:var(--surface);gap:4px;padding:6px;display:flex;overflow-x:auto}.markdown-content .wiki-tab-trigger{max-width:280px;min-height:40px;color:var(--muted);font:inherit;overflow-wrap:anywhere;cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;border-radius:3px 3px 0 0;flex:none;padding:8px 15px;font-weight:600;line-height:1.4}.markdown-content .wiki-tab-trigger:hover{color:var(--ink);background:var(--accent-soft)}.markdown-content .wiki-tab-trigger[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent);background:var(--page)}.markdown-content 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auto;padding:20px;display:block}.markdown-content .diagram-source{color:var(--muted);margin:0 0 24px;font-size:11px}.markdown-content .diagram-source summary{cursor:pointer}.markdown-content .diagram-source pre{margin-top:10px}.hljs-comment,.hljs-quote{color:var(--faint);font-style:italic}.hljs-keyword,.hljs-selector-tag,.hljs-literal,.hljs-built_in{color:#9870bd}.hljs-string,.hljs-doctag,.hljs-regexp,.hljs-addition{color:var(--accent)}.hljs-number,.hljs-attr,.hljs-variable,.hljs-template-variable{color:#bd8749}.hljs-title,.hljs-section,.hljs-name,.hljs-type{color:#5b8ca6}.hljs-deletion{color:#c37474}.article-footer{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:15px;margin-top:42px;padding:22px 0;display:flex}.article-tags{flex-wrap:wrap;gap:7px;margin:0;padding:0;list-style:none;display:flex}.article-tags li{border:1px solid var(--line);color:var(--muted);border-radius:4px;padding:2px 8px;font-size:9px}.back-top{color:var(--faint);white-space:nowrap;align-items:center;gap:8px;margin-left:auto;font-size:10px;display:inline-flex}.page-pagination{grid-template-columns:1fr 1fr;gap:24px;margin:9px 0 46px;display:grid}.page-pagination a{border:1px solid var(--line);border-radius:6px;padding:14px 17px}.page-pagination a:hover{border-color:var(--accent);background:var(--surface)}.page-pagination small{color:var(--faint);margin-bottom:4px;font-size:10px;display:block}.page-pagination span{color:var(--accent);font-size:12px;font-weight:550}.next-page{text-align:right}.site-footer{border-top:1px solid var(--line);color:var(--faint);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;padding:22px 0 28px;font-size:9px;display:flex}.site-footer>span{overflow-wrap:anywhere;min-width:0}.site-footer>:first-child{font-weight:600}}@layer components{.search-page,.not-found-page{min-height:58vh}.search-page h1{font-size:33px}.search-result-count{border-bottom:1px solid var(--line);color:var(--faint);margin:35px 0 0;padding-bottom:13px;font-size:11px}.search-results{margin:0;padding:0;list-style:none}.search-results li{border-bottom:1px solid var(--line)}.search-results :where(li)>a{padding:22px 0;display:block}.result-path{color:var(--faint);font-size:10px}.search-results h2{align-items:center;gap:12px;margin:6px 0 10px;font-size:19px;font-weight:650;display:flex}:where(.search-results h2) .icon{width:16px;height:16px;color:var(--faint);margin-left:auto}.search-results :where(a:hover) h2,:where(.search-results a:hover) .icon{color:var(--accent)}.search-results p{color:var(--muted);margin:0;font-size:12px;line-height:1.9}.result-tags{color:var(--accent);flex-wrap:wrap;gap:10px;margin-top:12px;font-size:9px;display:flex}.result-tags span:before{content:"#";color:var(--faint);padding-right:2px}.empty-search{padding:55px 0}:where(.empty-search)>.icon{width:32px;height:32px;color:var(--faint)}.empty-search h2{margin:18px 0 10px;font-size:18px;font-weight:600}.empty-search p{color:var(--muted);font-size:13px}.empty-search a{color:var(--accent);align-items:center;gap:9px;margin-top:25px;font-size:12px;display:flex}:where(.empty-search a) .icon{width:16px;height:16px}.not-found-code{color:var(--accent-soft);letter-spacing:-8px;margin:15px 0 28px;font-size:120px;font-weight:800;line-height:1.1;display:block}.not-found-page .article-description{max-width:500px}.primary-link{color:var(--page);background:var(--accent);border-radius:5px;align-items:center;gap:15px;margin-top:12px;padding:10px 16px;font-size:12px;display:inline-flex}:where(.primary-link) .icon{width:16px;height:16px}.image-dialog{background:var(--page);max-width:min(1200px,94vw);max-height:94dvh;color:var(--muted);border:1px solid var(--line);border-radius:9px;padding:40px 20px 12px;position:fixed;overflow:auto}.image-dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0c1918d9}.image-dialog form{position:absolute;top:10px;right:10px}.image-dialog button{color:var(--muted);background:var(--surface);border:0;border-radius:5px;place-items:center;width:28px;height:28px;display:grid}.image-dialog img{width:auto;max-width:100%;height:auto;max-height:75dvh;margin:0 auto;display:block}.image-dialog p{text-align:center;margin:12px 0 0;font-size:12px}}@layer responsive{@media (width>=1600px){.reader-layout{gap:55px}}@media (width<=1200px){.header-inner{gap:28px;padding:0 27px}.site-brand{min-width:195px}.reader-layout{grid-template-columns:195px minmax(0,1fr) 150px;gap:28px;padding:0 27px}.desktop-navigation{padding-right:18px}.toc-sticky a{font-size:10px}.header-actions{gap:15px}}@media (width<=1020px){.reader-layout{grid-template-columns:190px minmax(0,1fr);gap:32px}.table-of-contents{display:none}.header-inner{gap:25px}.site-brand{min-width:190px}.language-switch{gap:10px;font-size:11px}.header-actions{gap:12px}.header-divider{display:none}}@media 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