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#2f9e5f}.article-timeline-item[data-type=warning]{--article-timeline-node-color: #c07a25}.article-timeline-item[data-type=error],.article-timeline-item[data-type=danger]{--article-timeline-node-color: #c94b4b}.article-timeline-timestamp{color:color-mix(in srgb,var(--text-muted) 86%,var(--link) 14%);font-family:var(--font-mono);font-size:var(--article-timeline-timestamp-size);line-height:var(--article-timeline-timestamp-lh)}.article-timeline-timestamp.is-top{margin:0 0 var(--article-timeline-timestamp-gap)}.article-timeline-timestamp.is-bottom{margin:var(--article-timeline-timestamp-gap) 0 0}.article-timeline-content{color:var(--text-body);font-size:var(--article-timeline-content-size);line-height:var(--article-timeline-content-lh);transition:color var(--motion-fast) var(--motion-ease),transform var(--motion-fast) var(--motion-ease)}.article-timeline-content p{margin:.45rem 0 0}.article-timeline-content p:first-child{margin-top:0}.article-timeline-content 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.aplayer:hover{border-color:var(--article-accent-border);box-shadow:var(--article-panel-shadow-hover)}.article-music .aplayer .aplayer-info{border-bottom-color:var(--article-panel-border-soft)}.article-music .aplayer .aplayer-title{color:var(--text);font-weight:500}.article-music .aplayer .aplayer-author,.article-music .aplayer .aplayer-time,.article-music .aplayer .aplayer-list-author{color:var(--text-muted)}.article-music .aplayer .aplayer-icon path{fill:currentColor}.article-music .aplayer .aplayer-icon{color:var(--text-muted)}.article-music .aplayer .aplayer-icon:hover{color:var(--link)}.article-music .aplayer .aplayer-bar-wrap .aplayer-bar,.article-music .aplayer .aplayer-volume-bar-wrap .aplayer-volume-bar{background:color-mix(in srgb,var(--border) 72%,transparent)}.article-music .aplayer .aplayer-list{border-top-color:var(--border-soft)}.article-music .aplayer .aplayer-list ol li{border-top-color:var(--border-soft);color:var(--text-body)}.article-music .aplayer .aplayer-list ol li:hover,.article-music .aplayer .aplayer-list ol li.aplayer-list-light{background:color-mix(in srgb,var(--link) 9%,transparent)}.article-music .aplayer .aplayer-list ol li.aplayer-list-light{color:var(--text)}.article-music .aplayer .aplayer-lrc{color:var(--text-muted)}.article-music .aplayer .aplayer-lrc:before,.article-music .aplayer .aplayer-lrc:after{background:linear-gradient(180deg,var(--article-panel-bg),color-mix(in srgb,var(--article-panel-bg) 0%,transparent))}.article-music .aplayer .aplayer-lrc:after{background:linear-gradient(180deg,color-mix(in srgb,var(--article-panel-bg) 0%,transparent),var(--article-panel-bg))}.article-music .aplayer .aplayer-notice{background:color-mix(in srgb,var(--surface) 92%,transparent);color:var(--text-muted)}.article-music.is-error{padding:.85rem .9rem;border:1px solid var(--article-panel-border-soft);border-radius:var(--article-radius);background:var(--article-panel-muted);color:var(--text-muted);font-family:var(--font-mono);font-size:.82rem;line-height:1.6}.article-file-tree{--file-tree-indent: 1rem;--file-tree-icon-size: 1rem;--file-tree-row-radius: 5px;margin:1.45rem 0 1.65rem;overflow-x:auto;padding:.78rem .86rem;border:1px solid var(--article-panel-border-soft);border-radius:var(--article-radius);background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 42%,transparent),transparent 4.5rem),var(--article-panel-muted);color:var(--text-body);box-shadow:var(--article-panel-shadow);transition:border-color var(--motion-base) var(--motion-ease),box-shadow var(--motion-base) var(--motion-ease)}.article-file-tree:hover{border-color:var(--article-panel-border);box-shadow:var(--article-panel-shadow-hover)}.article-file-tree.is-error{border-color:color-mix(in srgb,var(--signal, #d14) 28%,var(--border-soft) 72%)}.article-content 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/ contain no-repeat}.file-tree-empty{margin:0;color:var(--text-muted);font-family:var(--font-mono);font-size:.84rem;line-height:1.6}.article-table-scroll{max-width:100%;width:100%;margin:1.35rem 0 1.6rem;overflow-x:auto}.article-content table{display:table;width:max-content;min-width:100%;max-width:none;margin:0;border:0;border-radius:0;border-collapse:collapse;border-spacing:0;background:transparent;font-size:14px;line-height:24px;box-shadow:none;transition:color var(--motion-base) var(--motion-ease),background-color var(--motion-base) var(--motion-ease)}.article-content th,.article-content td{border:1px solid var(--article-panel-border-soft);padding:.55rem .82rem;vertical-align:top;overflow-wrap:anywhere;transition:border-color var(--motion-base) var(--motion-ease),background-color var(--motion-base) var(--motion-ease),color var(--motion-base) var(--motion-ease)}.article-content tr{background:var(--surface);border-top:1px solid var(--article-panel-border-soft);transition:background-color var(--motion-base) var(--motion-ease)}.article-content tr:nth-child(2n){background:color-mix(in srgb,var(--bg-alt) 58%,var(--surface) 42%)}.article-content tbody tr:hover>td{border-color:color-mix(in srgb,var(--link) 22%,var(--article-panel-border-soft) 78%);background:color-mix(in srgb,var(--link) 8%,var(--surface) 92%);color:var(--text)}.article-content th{background:color-mix(in srgb,var(--surface-muted) 66%,var(--surface) 34%);color:var(--text);font-size:14px;font-weight:600;letter-spacing:0}.article-content td{font-size:14px}.article-content table :not(pre)>code{padding:.06em .3em;font-size:.92em;line-height:inherit;white-space:nowrap}.article-body img,.article-video{display:block;width:100%;max-width:100%;height:auto;margin:1.55rem 0 .55rem;border:1px solid var(--image-border);border-radius:var(--article-radius);background:var(--surface);padding:3px;box-shadow:var(--article-panel-shadow);transition:border-color var(--motion-base) var(--motion-ease),box-shadow var(--motion-base) var(--motion-ease),filter var(--motion-base) var(--motion-ease)}.article-body img{cursor:zoom-in}.article-body .article-figure{margin:1.55rem 0 1.65rem}.article-body .article-figure>img{margin:0}.article-body .article-figure>figcaption{width:100%;max-width:100%;margin:.5rem 0 0;color:var(--text-muted);font-size:.74rem;line-height:1.55;text-align:center}.article-body img:hover{border-color:var(--article-panel-border);box-shadow:var(--article-panel-shadow-hover)}.article-video{margin-bottom:1.65rem}.article-embed{position:relative;width:100%;max-width:var(--article-media-width);margin:1.55rem auto 1.65rem;overflow:hidden;border:1px solid var(--image-border);border-radius:var(--article-radius);background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 78%,transparent),transparent 62%),var(--article-panel-muted);box-shadow:var(--article-panel-shadow);transition:border-color var(--motion-base) var(--motion-ease),box-shadow var(--motion-base) var(--motion-ease)}.article-embed:hover{border-color:var(--article-panel-border);box-shadow:var(--article-panel-shadow-hover)}.article-embed:before{content:"";display:block;aspect-ratio:16 / 9}.article-embed iframe{position:absolute;inset:0;display:block;width:100%;height:100%;border:0;background:transparent}.article-embed-facade{position:absolute;inset:0;z-index:1;display:grid;place-content:center;justify-items:center;gap:.55rem;margin:0;border:0;overflow:hidden;background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 18%,transparent),color-mix(in srgb,var(--text) 10%,transparent)),var(--article-panel-muted);color:var(--text);cursor:pointer;font-family:var(--font);transition:background-color var(--motion-base) var(--motion-ease),color var(--motion-base) var(--motion-ease)}.article-embed-facade:hover,.article-embed-facade:focus-visible{color:var(--link);outline:none;background:linear-gradient(180deg,color-mix(in 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var(--motion-ease),filter var(--motion-base) var(--motion-ease)}.article-embed-bilibili .bilibili-shade{position:absolute;inset:auto 0 0;height:58%;pointer-events:none;background:linear-gradient(180deg,transparent,color-mix(in srgb,black 72%,transparent) 130%);opacity:.9;transition:opacity var(--motion-base) var(--motion-ease)}.article-embed-bilibili .bilibili-play{position:absolute;top:50%;left:50%;width:3.2rem;height:3.2rem;margin:-1.6rem 0 0 -1.6rem;display:grid;place-items:center;border-radius:var(--radius-pill);background:color-mix(in srgb,black 52%,transparent);color:#fff;pointer-events:none;transition:background-color var(--motion-base) var(--motion-ease),transform var(--motion-base) var(--motion-ease);box-shadow:0 2px 10px color-mix(in srgb,black 38%,transparent),inset 0 0 0 1px color-mix(in srgb,white 22%,transparent)}.article-embed-bilibili .bilibili-play:before{width:0;height:0;margin-left:.16rem;border-style:solid;border-width:.45rem 0 .45rem .78rem;border-color:transparent transparent transparent currentColor;content:""}.article-embed-bilibili .bilibili-meta{position:absolute;left:0;right:0;bottom:0;display:flex;flex-direction:column;gap:.08rem;padding:.9rem 1rem .75rem;color:#fff;text-align:left;pointer-events:none}.article-embed-bilibili .bilibili-title{font-family:var(--font);font-size:.92rem;font-weight:600;letter-spacing:.005em;line-height:1.3;overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2}.article-embed-bilibili .bilibili-duration{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.04em;line-height:1.5;opacity:.82}.article-embed-bilibili .article-embed-facade.has-cover:hover .bilibili-cover,.article-embed-bilibili .article-embed-facade.has-cover:focus-visible .bilibili-cover{transform:scale(1.03);filter:brightness(1.04)}.article-embed-bilibili .article-embed-facade.has-cover:hover .bilibili-play,.article-embed-bilibili .article-embed-facade.has-cover:focus-visible .bilibili-play{background:color-mix(in 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42%,var(--border) 58%);border-radius:0;background:transparent;box-shadow:none;color:color-mix(in srgb,var(--article-ink) 86%,var(--text-muted) 14%);font-family:var(--font-serif);font-optical-sizing:auto}body.article-page .article-content blockquote:before{content:none}body.article-page .article-content blockquote:hover{border-left-color:color-mix(in srgb,var(--article-dateplate-accent) 58%,var(--border) 42%)}body.article-page .article-content blockquote>:first-child{margin-top:0}body.article-page .article-content blockquote>:last-child{margin-bottom:0}body.article-page .article-content blockquote blockquote{margin:.9rem 0 .2rem;padding-left:1.1rem;border-left-color:color-mix(in srgb,var(--border-soft) 66%,transparent);font-size:.97em}body.article-page .article-content hr{height:1px;margin:2.5rem 0;border:0;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--border-soft) 72%,transparent) 18%,color-mix(in srgb,var(--border-soft) 72%,transparent) 82%,transparent)}body.article-page .article-math-block,body.article-page .article-mermaid,body.article-page .article-echarts,body.article-page .article-file-tree,body.article-page .article-music .aplayer,body.article-page .article-content details:not(.admonition),body.article-page .article-link-card{border-color:var(--article-card-border);background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 34%,transparent),transparent 5rem),var(--article-card-bg);box-shadow:var(--article-card-shadow);border-radius:var(--article-card-radius)}body.article-page .article-math-block:hover,body.article-page .article-mermaid:hover,body.article-page .article-echarts:hover,body.article-page .article-file-tree:hover,body.article-page .article-music .aplayer:hover,body.article-page .article-link-card:hover{border-color:color-mix(in srgb,var(--article-dateplate-accent) 26%,var(--border) 74%);box-shadow:var(--article-card-shadow-hover)}body.article-page .article-content table{font-size:.88rem;line-height:1.6;border-collapse:collapse}body.article-page .article-content th{color:color-mix(in srgb,var(--text) 88%,var(--article-dateplate-accent) 12%);font-family:var(--font-mono);font-size:.8rem;font-weight:600;letter-spacing:.02em;background:linear-gradient(180deg,color-mix(in srgb,var(--article-dateplate-accent) 6%,transparent),transparent),var(--article-card-bg-soft)}body.article-page .article-content th,body.article-page .article-content td{padding:.62rem .86rem;border-bottom:1px solid color-mix(in srgb,var(--border-soft) 78%,transparent);font-variant-numeric:tabular-nums}body.article-page .article-content tbody tr:hover>td{background:color-mix(in srgb,var(--article-dateplate-accent) 7%,var(--surface) 93%)}body.article-page .article-body img,body.article-page .article-video,body.article-page .article-embed{border:1px solid color-mix(in srgb,var(--image-border) 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.article-body .article-figure>figcaption{display:flex;align-items:center;justify-content:center;gap:.7rem;margin-top:.42rem;color:color-mix(in srgb,var(--text-muted) 90%,transparent);font-size:.76rem;line-height:1.5}body.article-page .article-image-caption:before,body.article-page .article-image-caption:after,body.article-page .article-body .article-figure>figcaption:before,body.article-page .article-body .article-figure>figcaption:after{flex:0 1 3rem;min-width:1.1rem;height:1px;content:""}body.article-page .article-image-caption:before{background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--article-dateplate-accent) 40%,var(--border) 60%))}body.article-page .article-image-caption:after{background:linear-gradient(90deg,color-mix(in srgb,var(--article-dateplate-accent) 40%,var(--border) 60%),transparent)}body.article-page .article-content pre{scrollbar-color:color-mix(in srgb,var(--text-muted) 36%,transparent) transparent;scrollbar-width:thin}body.article-page .article-content kbd{position:relative;top:-.02em;display:inline-flex;align-items:center;justify-content:center;min-width:1.95em;min-height:1.72em;margin:0 .1em;padding:.12em .52em .18em;border:1px solid color-mix(in srgb,var(--border) 72%,var(--text) 28%);border-bottom-color:color-mix(in srgb,var(--text) 22%,var(--border) 78%);border-radius:var(--radius-inset);background:linear-gradient(180deg,color-mix(in srgb,white 78%,var(--surface) 22%),color-mix(in srgb,var(--surface) 92%,var(--surface-muted) 8%) 38%,color-mix(in srgb,var(--surface-muted) 58%,var(--surface) 42%));box-shadow:inset 0 1px color-mix(in srgb,white 88%,transparent),inset 0 -1px color-mix(in srgb,var(--text) 10%,transparent),inset 1px 0 color-mix(in srgb,white 28%,transparent),inset -1px 0 color-mix(in srgb,var(--text) 6%,transparent),0 1px color-mix(in srgb,var(--text) 14%,transparent),0 2px color-mix(in srgb,var(--text) 10%,transparent),0 3px 4px -1px color-mix(in srgb,var(--text) 14%,transparent);color:color-mix(in srgb,var(--text) 90%,var(--text-muted) 10%);font-family:-apple-system,BlinkMacSystemFont,var(--font);font-size:.78em;font-weight:650;letter-spacing:.01em;line-height:1.1;vertical-align:.08em;white-space:nowrap;transform:translateY(-1px)}body.article-page .article-content kbd:active{top:0;border-bottom-color:color-mix(in srgb,var(--border) 78%,var(--text) 22%);background:linear-gradient(180deg,color-mix(in srgb,var(--surface-muted) 52%,var(--surface) 48%),color-mix(in srgb,var(--surface) 88%,var(--surface-muted) 12%));box-shadow:inset 0 1px 2px color-mix(in srgb,var(--text) 12%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--text) 4%,transparent),0 1px color-mix(in srgb,var(--text) 8%,transparent);transform:translateY(1px)}[data-scheme=dark] body.article-page .article-content kbd{border-color:color-mix(in srgb,var(--border) 70%,white 12%);border-bottom-color:color-mix(in srgb,#000 55%,var(--border) 45%);background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 78%,white 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var(--article-card-border)}body.article-page .article-content details:not(.admonition)>:not(summary){margin-left:1rem;margin-right:1rem}body.article-page .article-content summary:not(.admonition-title){position:relative;padding:.78rem 1rem;color:var(--article-ink-strong);font-weight:620;transition:background-color .14s ease,color .14s ease}body.article-page .article-content summary:not(.admonition-title):hover{background:color-mix(in srgb,var(--article-dateplate-accent) 7%,transparent);color:color-mix(in srgb,var(--article-dateplate-accent) 62%,var(--text) 38%)}body.article-page .article-content summary:not(.admonition-title)::marker{color:var(--article-dateplate-accent)}body.article-page .article-file-tree{padding:.88rem .9rem;font-family:var(--font-mono);font-size:.84rem}body.article-page .article-file-tree,body.article-page .article-mermaid,body.article-page .article-echarts,body.article-page .article-math-block{margin:1.55rem 0 1.8rem;border:1px solid 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.aplayer-time{top:0;height:auto;line-height:1.35;padding-left:.45rem}body.article-page .article-music .aplayer .aplayer-list{border-top:1px solid color-mix(in srgb,var(--border-soft) 86%,transparent);background:color-mix(in srgb,var(--article-card-bg-soft) 42%,var(--surface) 58%)}body.article-page .article-music .aplayer .aplayer-list ol li{padding:.62rem .95rem!important;border-top-color:color-mix(in srgb,var(--border-soft) 78%,transparent);color:var(--article-ink);font-size:.86rem;line-height:1.45;transition:background-color .14s ease,color .14s ease}body.article-page .article-music .aplayer .aplayer-list ol li:hover,body.article-page .article-music .aplayer .aplayer-list ol li.aplayer-list-light{background:color-mix(in srgb,var(--article-dateplate-accent) 8%,transparent)}body.article-page .article-music .aplayer .aplayer-list ol li.aplayer-list-light{color:color-mix(in srgb,var(--article-dateplate-accent) 42%,var(--text) 58%);font-weight:560}body.article-page .article-music .aplayer .aplayer-list ol li .aplayer-list-cur{background-color:var(--article-dateplate-accent)!important}body.article-page .article-music .aplayer .aplayer-lrc{color:var(--text-muted);font-size:.8rem;text-align:left;margin-bottom:.2rem}body.article-page .article-music .aplayer .aplayer-lrc p{color:inherit}body.article-page .article-music .aplayer .aplayer-lrc:before,body.article-page .article-music .aplayer .aplayer-lrc:after{background:linear-gradient(180deg,var(--article-card-bg),color-mix(in srgb,var(--article-card-bg) 0%,transparent))}body.article-page .article-music .aplayer .aplayer-lrc:after{background:linear-gradient(180deg,color-mix(in srgb,var(--article-card-bg) 0%,transparent),var(--article-card-bg))}body.article-page .article-music .aplayer .aplayer-notice{background:color-mix(in srgb,var(--surface) 92%,transparent);color:var(--text-muted);border-radius:var(--radius-inset)}body.article-page .article-music.is-error{margin:1.55rem 0 1.8rem;padding:.82rem .95rem;border:1px solid var(--article-card-border);border-radius:var(--article-card-radius);background:var(--article-card-bg-soft);box-shadow:var(--article-card-shadow);color:var(--text-muted);font-family:var(--font-mono);font-size:.8rem;line-height:1.55}body.article-page .article-embed,body.article-page .article-video{margin:1.55rem 0 1.8rem}body.article-page .article-embed-facade{background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 42%,transparent),color-mix(in srgb,var(--article-dateplate-accent) 8%,transparent)),var(--article-card-bg);color:var(--article-ink-strong)}body.article-page .article-embed-facade:hover,body.article-page .article-embed-facade:focus-visible{color:var(--article-dateplate-accent);background:linear-gradient(180deg,color-mix(in srgb,var(--article-dateplate-accent) 10%,transparent),color-mix(in srgb,var(--text) 8%,transparent)),var(--article-card-bg)}body.article-page .article-embed-facade-play{border-color:color-mix(in srgb,var(--article-card-border) 78%,var(--article-dateplate-accent) 22%);background:color-mix(in srgb,var(--surface) 90%,var(--article-card-bg) 10%);box-shadow:var(--article-card-shadow)}body.article-page .article-embed-facade-label{color:color-mix(in srgb,var(--text-muted) 90%,var(--article-dateplate-accent) 10%);letter-spacing:.06em;text-transform:uppercase;font-size:.74rem;font-weight:620}body.article-page .article-embed-bilibili .article-embed-facade.has-cover{background:none}body.article-page .article-embed-bilibili .article-embed-facade.has-cover:hover,body.article-page .article-embed-bilibili .article-embed-facade.has-cover:focus-visible{background:none;color:#fff}body.article-page .article-embed-bilibili .bilibili-cover{border-radius:0;box-shadow:none}body.article-page .article-mermaid,body.article-page .article-echarts,body.article-page .article-file-tree,body.article-page .article-music,body.article-page .article-tabs,body.article-page .article-embed{content-visibility:auto;contain-intrinsic-size:280px 760px}body.article-page .article-embed-bilibili{content-visibility:auto;contain-intrinsic-size:320px 180px}body.article-page .footnotes,body.article-page .footnotes-section,body.article-page .article-content :is(.footnotes,section[data-footnotes]){margin-top:2.4rem;padding:1rem 1.05rem 1.1rem;border:1px solid var(--article-hairline);border-radius:var(--radius-md);background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 28%,transparent),transparent 4rem),color-mix(in srgb,var(--article-card-bg) 88%,transparent);box-shadow:none;color:color-mix(in srgb,var(--text-muted) 92%,var(--text) 8%);font-size:.82rem;line-height:1.65}body.article-page .footnotes ol,body.article-page .footnotes-list,body.article-page .article-content .footnotes ol,body.article-page .article-content .footnotes-list,body.article-page .article-content .footnotes ol:not(.article-steps){list-style:none!important;margin:0;padding:0!important;counter-reset:none}body.article-page .footnotes li,body.article-page .footnotes-item,body.article-page .article-content .footnotes li,body.article-page .article-content .footnotes-item{display:grid;grid-template-columns:1.45rem minmax(0,1fr);column-gap:.5rem;align-items:start;margin:0 0 .72rem;padding:0;line-height:1.65;list-style:none;counter-increment:none}body.article-page .footnotes li:last-child,body.article-page .footnotes-item:last-child,body.article-page .article-content .footnotes li:last-child,body.article-page .article-content .footnotes-item:last-child{margin-bottom:0}body.article-page .footnotes li::marker,body.article-page .footnotes-item::marker,body.article-page .article-content .footnotes li::marker,body.article-page .article-content .footnotes-item::marker,body.article-page .footnotes li:before,body.article-page .footnotes-item:before,body.article-page .article-content .footnotes li:before,body.article-page .article-content .footnotes-item:before{content:none!important;display:none!important}body.article-page .footnote-index{width:1.45rem;color:color-mix(in srgb,var(--article-dateplate-accent) 72%,var(--link) 28%);font-family:var(--font-mono);font-size:.78rem;font-weight:650;letter-spacing:0;line-height:1.55;text-align:left}body.article-page .footnote-body{min-width:0}body.article-page .footnotes li p,body.article-page .footnotes-item p,body.article-page .footnote-body p,body.article-page .article-content .footnotes li p,body.article-page .article-content .footnotes-item p{display:inline;margin:0}body.article-page .article-content :is(.footnotes,section[data-footnotes]) :is(h2,h3){display:block;margin:0 0 .8rem;padding:0;border:0;border-radius:0;background:none;box-shadow:none;color:color-mix(in srgb,var(--text) 72%,var(--text-muted) 28%);font-family:var(--font-mono);font-size:.74rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}body.article-page .article-content :is(.footnotes,section[data-footnotes]) :is(h2,h3):before,body.article-page .article-content :is(.footnotes,section[data-footnotes]) :is(h2,h3):after{display:none;content:none}body.article-page .footnote-ref a{border-radius:var(--radius-xs);color:var(--link);font-family:var(--font-mono);font-size:.78em;text-decoration:none}body.article-page .footnote-ref a:hover{background:color-mix(in srgb,var(--article-dateplate-accent) 10%,transparent)}body.article-page .footnote-tooltip{border:1px solid var(--article-card-border);border-radius:var(--radius-md);background:var(--article-card-bg);box-shadow:var(--article-card-shadow-hover)}body.article-page .article-timeline{--article-timeline-line: color-mix( in srgb, var(--article-dateplate-accent) 24%, var(--border) 76% );--article-timeline-node-color: color-mix( in srgb, var(--article-dateplate-accent) 72%, var(--text-muted) 28% );--article-timeline-node-size: .56rem;--article-timeline-line-width: 1px;--article-timeline-rail-center: .48rem;--article-timeline-content-indent: 1.55rem;--article-timeline-item-pad-top: .42rem;--article-timeline-item-pad-bottom: .72rem;--article-timeline-content-size: .94rem;--article-timeline-content-lh: 1.62;--article-timeline-timestamp-size: .74rem;--article-timeline-timestamp-lh: 1.4;--article-timeline-timestamp-gap: .16rem;margin:1.55rem 0 1.85rem;padding:0}body.article-page .article-timeline-item:before{border-width:1.5px;border-color:color-mix(in srgb,var(--article-timeline-node-color) 88%,var(--border) 12%);background:var(--bg);outline:3px solid var(--bg);box-shadow:0 0 0 1px color-mix(in srgb,var(--article-timeline-node-color) 12%,transparent)}body.article-page .article-timeline-item:after{background:linear-gradient(180deg,color-mix(in srgb,var(--article-timeline-line) 42%,transparent),var(--article-timeline-line) 18%,var(--article-timeline-line) 82%,color-mix(in srgb,var(--article-timeline-line) 42%,transparent))}body.article-page .article-timeline-item:hover:before{border-color:var(--article-dateplate-accent);background:color-mix(in srgb,var(--article-dateplate-accent) 12%,var(--bg) 88%);outline:4px solid color-mix(in srgb,var(--article-dateplate-accent) 10%,var(--bg) 90%);box-shadow:0 0 0 1px color-mix(in srgb,var(--article-dateplate-accent) 18%,transparent)}body.article-page .article-timeline-item:hover .article-timeline-content{color:var(--article-ink-strong);transform:translate(1px)}body.article-page .article-timeline-item[data-node=dot]:before{background:var(--article-timeline-node-color);box-shadow:none}body.article-page .article-timeline-item[data-type=info]{--article-timeline-node-color: var(--article-dateplate-accent)}body.article-page .article-timeline-item[data-type=success]{--article-timeline-node-color: #4f8f6e}body.article-page .article-timeline-item[data-type=warning]{--article-timeline-node-color: #b8863a}body.article-page .article-timeline-item[data-type=error],body.article-page .article-timeline-item[data-type=danger]{--article-timeline-node-color: #c94b4b}body.article-page .article-timeline-timestamp{color:color-mix(in srgb,var(--text-muted) 82%,var(--article-dateplate-accent) 18%);font-variant-numeric:tabular-nums;letter-spacing:.02em}body.article-page .article-timeline-content{color:var(--article-ink)}body.article-page .article-math-block{margin:1.55rem 0 1.8rem;overflow:hidden;border:1px solid var(--article-card-border);border-radius:var(--article-card-radius);background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 48%,transparent),transparent 4.2rem),color-mix(in srgb,var(--article-card-bg) 88%,var(--article-dateplate-accent-soft) 12%);box-shadow:var(--article-card-shadow)}body.article-page .article-math-block:hover{border-color:color-mix(in srgb,var(--article-dateplate-accent) 22%,var(--border) 78%);box-shadow:var(--article-card-shadow-hover)}body.article-page .article-content .katex-display{display:block;margin:0;overflow-x:auto;overflow-y:hidden;padding:1.05rem 1.15rem 1.1rem;text-align:center;scrollbar-width:thin}body.article-page .article-content .katex-display>.katex{display:block;max-width:none;text-align:center;white-space:nowrap}body.article-page .article-content .katex,body.article-page .article-content .katex *{max-width:none}body.article-page .article-content .katex svg{max-width:none;height:inherit}body.article-page .article-content .katex-mathml{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;clip-path:inset(50%)!important;border:0!important;white-space:nowrap!important;user-select:none!important;-webkit-user-select:none!important;pointer-events:none!important}body.article-page .article-content .katex .vlist-s{user-select:none!important;-webkit-user-select:none!important}body.article-page .article-math-copy{user-select:none}body.article-page .article-content :not(.katex-display)>.katex{padding:.02em .1em;border-radius:var(--radius-xs);background:color-mix(in srgb,var(--article-dateplate-accent) 5%,transparent)}body.article-page .article-footer{margin-top:2.35rem;padding-top:1.35rem;border-top:1px solid var(--article-hairline)}body.article-page .article-nav-card{position:relative;overflow:hidden;transition:border-color .14s ease,box-shadow .14s ease,transform .14s ease,color .14s ease}body.article-page .article-nav-card:before{position:absolute;top:0;bottom:0;width:2px;background:color-mix(in srgb,var(--article-dateplate-accent) 58%,transparent);opacity:0;content:"";transition:opacity .14s ease}body.article-page .article-nav-prev:before{left:0}body.article-page .article-nav-next:before{right:0}body.article-page .article-nav-card:hover{border-color:color-mix(in srgb,var(--article-dateplate-accent) 34%,var(--border) 66%);color:var(--text)}body.article-page .article-nav-card:hover:before{opacity:1}body.article-page .article-nav-card:hover .article-nav-title{color:color-mix(in srgb,var(--article-dateplate-accent) 72%,var(--text) 28%)}body.article-page .article-nav-label{margin-bottom:.32rem;color:color-mix(in srgb,var(--text-muted) 88%,transparent);font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase}body.article-page .article-nav-title{color:var(--article-ink-strong);font-size:.92rem;font-weight:560;line-height:1.4;transition:color .14s ease}body.article-page .article-nav-empty{opacity:.72}body.article-page .article-nav-empty:hover{border-color:var(--article-card-border);box-shadow:var(--article-card-shadow);transform:none}body.article-page .article-nav-empty:hover:before{opacity:0}body.article-page .article-nav-empty:hover .article-nav-title{color:inherit}body.article-page .article-nav-placeholder{color:color-mix(in srgb,var(--text-muted) 86%,transparent);font-size:.88rem}body.article-page .reading-progress{height:2px;background:linear-gradient(90deg,color-mix(in srgb,var(--article-dateplate-accent) 92%,white 8%),color-mix(in srgb,var(--article-dateplate-accent) 62%,var(--link) 38%));box-shadow:0 0 10px color-mix(in srgb,var(--article-dateplate-accent) 28%,transparent)}@media(max-width:720px){body.article-page .article-nav{grid-template-columns:1fr}}@media(max-width:640px){body.article-page .article-header:after{height:2px;background:linear-gradient(90deg,color-mix(in srgb,var(--article-dateplate-accent) 78%,var(--border) 22%) 0 2.5rem,color-mix(in srgb,var(--article-dateplate-accent) 24%,transparent) 2.5rem 3.8rem,color-mix(in srgb,var(--border) 48%,transparent) 3.8rem,transparent 100%)}body.article-page .article-body{font-size:1rem;line-height:1.82}body.article-page .article-content p{margin:1rem 0}body.article-page .article-content h2{margin-top:2.55rem;font-size:1.34rem}body.article-page .article-content h2:first-child,body.article-page .article-content>h2:first-of-type{margin-top:.35rem;padding-top:0}body.article-page .article-content h3{margin-top:1.85rem;font-size:1.12rem}body.article-page .article-content blockquote{padding:.15rem .2rem .15rem 1rem}body.article-page .article-content :is(ul,ol):not(.contains-task-list):not(.article-steps):not(.article-timeline):not(.file-tree):not(.footnotes-list){padding-left:1.28rem}body.article-page .article-content pre,body.article-page .article-table-scroll,body.article-page .article-content .expressive-code,body.article-page .article-math-block,body.article-page .article-mermaid,body.article-page .article-echarts,body.article-page .article-file-tree,body.article-page .admonition{margin-right:0;margin-left:0;border-radius:var(--radius-md)}body.article-page .article-content pre{padding:.95rem}body.article-page .article-content table{display:table;width:max-content;min-width:100%;white-space:normal}body.article-page .article-body img,body.article-page .article-video,body.article-page .article-embed{border-radius:var(--radius-md);padding:2px}body.article-page .article-image-caption{margin-bottom:1.45rem}body.article-page .footnotes{padding:1rem;border-right:1px solid var(--article-card-border);border-left:1px solid var(--article-card-border);border-radius:var(--radius-md)}body.article-page .article-nav-card{box-shadow:none}}body.article-page{--article-code-window: var(--color-base-200);--article-code-toolbar: var(--color-base-300);--article-code-toolbar-top: var(--color-base-100);--article-code-border: color-mix( in oklch, var(--border) 78%, var(--link) 10% );--article-code-divider: color-mix( in oklch, var(--border-soft) 86%, transparent );--article-code-text: var(--color-base-content);--article-code-muted: var(--text-muted);--article-code-button: color-mix( in oklch, var(--surface) 90%, var(--surface-muted) 10% );--article-code-button-hover: var(--surface);--article-code-button-active: color-mix( in oklch, var(--ad-tip) 12%, var(--surface) 88% );--article-code-button-active-text: var(--ad-tip);--article-code-shadow: 0 1px 0 color-mix(in oklch, white 70%, transparent), 0 16px 42px -34px color-mix(in oklch, var(--color-base-content) 22%, transparent)}[data-scheme=dark] body.article-page{--article-code-window: var(--color-base-100);--article-code-toolbar: var(--color-base-200);--article-code-toolbar-top: var(--color-base-300);--article-code-border: color-mix( in oklch, var(--border) 78%, var(--color-base-content) 12% );--article-code-divider: color-mix(in oklch, var(--border) 82%, transparent);--article-code-text: var(--color-base-content);--article-code-muted: var(--text-muted);--article-code-button: color-mix( in oklch, var(--surface-muted) 82%, var(--code-bg) 18% );--article-code-button-hover: var(--border);--article-code-button-active: color-mix( in oklch, var(--ad-tip) 18%, var(--code-bg) 82% );--article-code-button-active-text: var(--ad-tip);--article-code-shadow: 0 18px 46px -32px color-mix(in oklch, black 86%, transparent)}body.article-page .article-content .expressive-code{margin:1.75rem 0 2.05rem}body.article-page .article-content :is(.expressive-code,.article-mermaid,.article-echarts)+:is(.expressive-code,.article-mermaid,.article-echarts){margin-top:.9rem}body.article-page .article-content .expressive-code .frame{position:relative;overflow:hidden;border:1px solid var(--article-code-border);background:var(--article-code-window)}body.article-page .article-content .expressive-code .frame figcaption.header{position:relative;border:0}body.article-page .article-content .expressive-code .frame figcaption.header:before{position:absolute;top:50%;left:.82rem;width:.66rem;height:.66rem;border:0;border-radius:var(--radius-circle);background:#ff5f57;box-shadow:1rem 0 #febc2e,2rem 0 #28c840;content:"";transform:translateY(-50%)}body.article-page .article-content .expressive-code .frame figcaption.header .title{min-width:0;padding:0;overflow:hidden;background:transparent;font-family:var(--font);font-size:.76rem;font-weight:650;letter-spacing:0;line-height:1.2;text-overflow:ellipsis;white-space:nowrap}body.article-page .article-content .expressive-code .frame figcaption.header .title:before,body.article-page .article-content .expressive-code .frame figcaption.header .title:after{display:none;content:none}body.article-page .article-content .expressive-code .frame pre{margin:0;border:0;border-radius:0;background:transparent;color:var(--article-code-text);scrollbar-color:color-mix(in srgb,var(--article-code-muted) 36%,transparent) transparent}body.article-page .article-content .expressive-code .frame pre code{display:block;padding:1.02rem 0 1.08rem}body.article-page .article-content .expressive-code .ec-line{min-height:1.48rem}body.article-page .article-content .expressive-code .ec-line .code{padding-right:1.28rem;padding-left:1.28rem}[data-scheme=light] body.article-page .article-content .expressive-code .ec-line :where(span[style^=--]:not([class])){color:var(--0, inherit);background-color:var(--0bg, transparent);font-style:var(--0fs, inherit);font-weight:var(--0fw, inherit);text-decoration:var(--0td, inherit)}[data-scheme=dark] body.article-page .article-content .expressive-code .ec-line :where(span[style^=--]:not([class])){color:var(--1, inherit);background-color:var(--1bg, transparent);font-style:var(--1fs, inherit);font-weight:var(--1fw, inherit);text-decoration:var(--1td, inherit)}body.article-page .article-content .expressive-code .copy{position:absolute;z-index:4;bottom:auto;left:auto;width:auto;height:auto}body.article-page .article-content .expressive-code .copy>div[aria-live]{position:absolute;overflow:hidden;width:1px;height:1px;clip:rect(0 0 0 0);white-space:nowrap}body.article-page .article-content .expressive-code .copy button{display:inline-flex;inline-size:auto!important;min-inline-size:2.95rem;block-size:1.48rem!important;align-items:center;justify-content:center;gap:.04rem;padding:0 .3rem;border:1px solid color-mix(in srgb,var(--article-code-border) 82%,transparent);border-radius:var(--radius-inset);background:var(--article-code-button);box-shadow:inset 0 1px color-mix(in srgb,#fff 34%,transparent),0 1px 1px color-mix(in srgb,#000 8%,transparent);color:var(--article-code-muted);font-family:var(--font);font-size:.67rem;font-weight:650;line-height:1;opacity:.86;transition:border-color var(--motion-fast) var(--motion-ease),background-color var(--motion-fast) var(--motion-ease),color var(--motion-fast) var(--motion-ease),opacity var(--motion-fast) var(--motion-ease),transform var(--motion-fast) var(--motion-ease)}body.article-page .article-content .expressive-code .copy button:after{position:static;display:inline;width:auto;height:auto;background:transparent;color:currentColor;content:attr(data-copy-label);mask:none;-webkit-mask:none}body.article-page .article-content .expressive-code .copy button:before{position:static;display:block;width:.7rem;height:.7rem;background:currentColor;content:"";opacity:.82;mask:url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='8' y='4' width='11' height='13' rx='2'/%3E%3Cpath d='M5 8v10a2 2 0 0 0 2 2h8'/%3E%3C/g%3E%3C/svg%3E") center / contain no-repeat;-webkit-mask:url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='8' y='4' width='11' height='13' rx='2'/%3E%3Cpath d='M5 8v10a2 2 0 0 0 2 2h8'/%3E%3C/g%3E%3C/svg%3E") center / contain no-repeat}body.article-page .article-content .expressive-code .copy button:hover,body.article-page .article-content .expressive-code .copy button:focus-visible{background:var(--article-code-button-hover);color:var(--article-code-text);opacity:1;transform:translateY(-1px)}body.article-page .article-content .expressive-code .copy button:focus-visible{outline:2px solid color-mix(in srgb,var(--link) 48%,transparent);outline-offset:2px}body.article-page 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