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.fold-styled-arrow{flex-shrink:0;display:flex;align-items:center;color:inherit;opacity:.5;transition:transform .2s ease}.fold-styled-wrapper details.fold-styled-details[open] .fold-styled-arrow{transform:rotate(180deg)}.fold-styled-wrapper details.fold-styled-details summary{display:flex;align-items:center;justify-content:space-between;margin:0;padding:0;cursor:pointer;list-style:none;outline:none;font-weight:500;line-height:1.5rem}.fold-styled-wrapper details.fold-styled-details summary::-webkit-details-marker{display:none}.fold-styled-wrapper details.fold-styled-details summary::before{content:none;display:none}.fold-styled-wrapper details.fold-styled-details .fold-styled-content{padding:1rem 0 .2rem;line-height:1.4rem}:root{--slate-header:#F8FAFC;--slate-bg-header:#334155;--header-handler-color:#CBD5E1;--header-handler-active-color:#94A3B8;--slate-content-primary:#334155;--slate-content-secondary:#64748B;--slate-bg-content:white;--slate-border-color:#e2e8f0;--slate-shadow-full:0 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.player-btn:active{transform:scale(.9)}.ng-audio-player .player-btn svg{width:1.4rem;height:1.4rem;color:var(--text-color);flex-shrink:0}.ng-audio-player .player-track-info{flex-grow:1;display:flex;flex-direction:column;gap:4px;min-width:0}.ng-audio-player .player-track-title{font-size:1rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}.ng-audio-player .player-scrubber{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--secondary-text);font-variant-numeric:tabular-nums}.ng-audio-player .progress-bar{-webkit-appearance:none;appearance:none;width:100%;background:0 0;cursor:pointer;height:4px;border-radius:2px;outline:none}.ng-audio-player .progress-bar::-webkit-slider-runnable-track{height:4px;background:rgba(55,53,47,.16);border-radius:2px}.ng-audio-player .progress-bar::-webkit-slider-thumb{-webkit-appearance:none;height:12px;width:12px;border-radius:50%;background:var(--text-color);margin-top:-4px;box-shadow:0 1px 2px 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li{display:flex;align-items:center}.breadcrumb li::after{content:"›";margin:0 .2rem 0 .3rem;color:var(--doc-accent-color)}.breadcrumb li:last-child::after{content:""}.breadcrumb a{display:inline-flex;align-items:center;gap:.25rem;text-decoration:none;color:var(--doc-font-secondary-color)}.breadcrumb a:hover{color:var(--color-link);text-decoration:underline}.breadcrumb svg{width:1em;height:1em;stroke-width:2}.breadcrumb .active{color:var(--doc-accent-color)}.markdown h1,.markdown h2,.markdown h3,.markdown h4,.markdown h5,.markdown h6{line-height:1.6;margin:2rem 0 1rem}.markdown h1{font-size:1.875rem;font-weight:600;letter-spacing:.1rem}.markdown h2{font-size:1.5rem;font-weight:500;letter-spacing:.05rem}.markdown h3{font-size:1.25rem;font-weight:500;letter-spacing:.05rem}.markdown h4{font-size:1rem}.markdown h5{font-size:1rem}.markdown h6{font-size:.875rem}.markdown table{display:table;width:100%;table-layout:auto;border-collapse:separate;border-spacing:0;margin:1.5rem 0;border:1px solid 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td:first-child{color:var(--doc-brand-color);font-weight:600}.markdown table tbody tr:last-child td{border-bottom:none!important}@media screen and (max-width:56rem){.markdown table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;font-size:var(--font-size-smallest)}.markdown table thead th{background-color:var(--doc-icon-hover-bg-color);width:auto}.markdown table tbody td{background-color:var(--doc-bg-color);width:auto;word-break:keep-all;overflow-wrap:break-word;max-width:20rem}.markdown table tbody tr:hover td{background-color:var(--doc-icon-hover-bg-color)}}*{scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.25)transparent}*::-webkit-scrollbar{width:6px;height:6px;display:block!important}@media screen and (max-width:56rem){*::-webkit-scrollbar{width:2px;height:2px}}*::-webkit-scrollbar-track{background:0 0;border-radius:4px}*::-webkit-scrollbar-thumb{background-color:rgba(0,0,0,.25);border-radius:4px;border:1px solid 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0.3)}}.flex-center,.fancy-card__icon{display:flex;align-items:center;justify-content:center}.section-headline{text-align:center;max-width:600px;margin:2rem auto 60px}.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:30px;min-width:0}.fancy-card{background:var(--c-bg-surface);padding:24px;border-radius:12px;border:1px solid var(--border-color);transition:all .3s ease;min-width:0;word-wrap:break-word}.fancy-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm);border-color:transparent}.fancy-card__icon{width:50px;height:50px;background:var(--c-bg-soft);border-radius:12px;font-size:1.5rem;margin-bottom:20px}.fancy-card__img{width:100%;border-radius:8px;display:block;margin-top:1rem}.fancy-card p{font-size:var(--font-size-smaller);color:var(--doc-font-secondary-color)}.fancy-card h2,.fancy-card h3{margin-top:0;margin-bottom:0}.fancy-card .vspace{min-height:6rem}.toc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;min-width:0}.toc-grid .fancy-card{padding:24px}.toc-grid .fancy-card--tall{grid-row:span 2}.toc-grid .fancy-card--row3{grid-row:span 3}.toc-grid .fancy-card--wide{grid-column:span 2}@media screen and (max-width:56rem){.toc-grid{grid-template-columns:1fr}.toc-grid .fancy-card--tall,.toc-grid .fancy-card--wide{grid-column:span 1;grid-row:span 1}}.pill-group{display:flex;flex-wrap:wrap;gap:8px}.pill-group span{font-size:.85rem;padding:4px 10px;background:var(--c-bg-soft);color:var(--c-text-muted);border-radius:6px}.pill-group span:hover{color:var(--c-brand);background:var(--c-bg-soft)}.tag{display:inline-block;padding:4px 1rem;border-radius:20px;font-size:.85rem;font-weight:600}.tag--intro{background:var(--c-bg-soft);color:var(--c-brand);margin-bottom:1.2rem;border-radius:0 20px 20px 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.slider-item{flex:none;width:340px;scroll-snap-align:start;display:flex;flex-direction:column}@media screen and (max-width:56rem){.horizontal-slider .slider-item{width:85vw;scroll-snap-align:center}}.horizontal-slider .slider-item .fancy-card{height:100%;display:flex;flex-direction:column}.horizontal-slider .slider-item .fancy-card img{width:100%;margin-top:auto;border-radius:8px;box-shadow:var(--shadow-sm)}.horizontal-slider .slider-item--wide{width:600px}@media screen and (max-width:56rem){.horizontal-slider .slider-item--wide{width:125vw}}.switch-container{display:flex;align-items:center;justify-content:space-between;width:100%;cursor:pointer;padding:8px 0;-webkit-tap-highlight-color:transparent}.switch-container input{display:none}.switch-container .switch-label{color:var(--doc-font-primary-color);font-size:var(--font-size-smaller)}.switch-container .slider{position:relative;width:36px;height:20px;background-color:var(--doc-border-gray);border-radius:20px;transition:.3s cubic-bezier(.4,0,.2,1);flex-shrink:0}.switch-container .slider::before{position:absolute;content:"";height:16px;width:16px;left:2px;bottom:2px;background-color:var(--c-bg-slide);border-radius:50%;box-shadow:inset 0 0 0 1px rgba(0,0,0,5%);transition:.3s cubic-bezier(.4,0,.2,1);box-shadow:0 1px 3px rgba(0,0,0,.2)}.switch-container input:checked+.slider{background-color:var(--doc-brand-color)}.switch-container input:checked+.slider::before{transform:translateX(16px)}.switch-container input:focus+.slider{box-shadow:0 0 0 2px var(--doc-brand-light)}.switch-container:hover .switch-label{opacity:.5}html{scrollbar-gutter:stable both-edges;overflow-y:scroll}body{color:var(--doc-font-primary-color);background:var(--doc-bg-color);font-family:nunito,andika,-apple-system,BlinkMacSystemFont,pingfang sc,hiragino sans gb,microsoft yahei,heiti sc,sans-serif}.container{display:flex;max-width:72rem}.book-page{max-width:44rem;width:100%}nav ul ul{padding-inline-start:.8rem}.book-menu label>img:last-child{height:1.125rem;width:1.125rem;display:inline-block;padding:0 .6rem 0 1.2rem;box-sizing:content-box}.book-menu label>img:last-child:hover{opacity:.5}:root{--body-background:white;--body-background-tint:none;--body-font-color:black;--color-link:#0055bb;--color-visited-link:#5500bb;--icon-filter:none;--gray-100:#f8f9fa;--gray-200:#e9ecef;--gray-500:#adb5bd;--color-accent-default:#64748b;--color-accent-default-tint:rgba(100, 116, 139, 0.1);--color-accent-note:#4486dd;--color-accent-note-tint:rgba(68, 134, 221, 0.1);--color-accent-tip:#3bad3b;--color-accent-tip-tint:rgba(59, 173, 59, 0.1);--color-accent-important:#8144dd;--color-accent-important-tint:rgba(129, 68, 221, 0.1);--color-accent-warning:#f59e42;--color-accent-warning-tint:rgba(245, 158, 66, 0.1);--color-accent-caution:#d84747;--color-accent-caution-tint:rgba(216, 71, 71, 0.1);--color-accent-info:#4486dd;--color-accent-info-tint:rgba(68, 134, 221, 0.1);--color-accent-success:#3bad3b;--color-accent-success-tint:rgba(59, 173, 59, 0.1);--color-accent-danger:#d84747;--color-accent-danger-tint:rgba(216, 71, 71, 0.1)}@media(prefers-color-scheme:dark){:root{--body-background:#343a40;--body-background-tint:none;--body-font-color:#e9ecef;--color-link:#84b2ff;--color-visited-link:#b88dff;--icon-filter:brightness(0) invert(1);--gray-100:#494e54;--gray-200:#5c6165;--gray-500:#999d9f;--color-accent-default:#64748b;--color-accent-default-tint:rgba(100, 116, 139, 0.1);--color-accent-note:#4486dd;--color-accent-note-tint:rgba(68, 134, 221, 0.1);--color-accent-tip:#3bad3b;--color-accent-tip-tint:rgba(59, 173, 59, 0.1);--color-accent-important:#8144dd;--color-accent-important-tint:rgba(129, 68, 221, 0.1);--color-accent-warning:#f59e42;--color-accent-warning-tint:rgba(245, 158, 66, 0.1);--color-accent-caution:#d84747;--color-accent-caution-tint:rgba(216, 71, 71, 0.1);--color-accent-info:#4486dd;--color-accent-info-tint:rgba(68, 134, 221, 0.1);--color-accent-success:#3bad3b;--color-accent-success-tint:rgba(59, 173, 59, 0.1);--color-accent-danger:#d84747;--color-accent-danger-tint:rgba(216, 71, 71, 0.1)}}