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a,.lesson-row,.post-row,.lesson-pager__item,.toc-panel__track,.curriculum-lesson,.curriculum-nav__track,.curriculum-nav__index){text-decoration:none}.sl-markdown-content .edu-button,.sl-markdown-content .edu-button:hover,.sl-markdown-content .edu-button:focus{color:var(--edu-text)}.sl-markdown-content .edu-button--primary,.sl-markdown-content .edu-button--primary:hover,.sl-markdown-content .edu-button--primary:focus{color:var(--edu-on-accent)}.sl-markdown-content .edu-button:hover{text-decoration:none}.site-footer p+p{align-items:center;gap:var(--edu-space-2);display:flex}.sl-markdown-content details.edu-question{border:0;border-block-end:1px solid var(--edu-border);background:0 0;border-radius:0;padding:0}.sl-markdown-content details.edu-question>summary{align-items:baseline;gap:var(--edu-space-3);min-height:48px;padding:var(--edu-space-3) var(--edu-space-5) var(--edu-space-3) 0;color:var(--edu-text);font-family:var(--edu-font-sans);font-size:var(--edu-text-sm);font-weight:var(--edu-weight-medium);margin:0;line-height:1.5;display:flex}.sl-markdown-content details.edu-question>summary:before{content:none;display:none}.sl-markdown-content details.edu-question[open]>summary{margin-block-end:0}@layer starlight.base{:root,::backdrop{--sl-color-white:#fff;--sl-color-gray-1:#edeef3;--sl-color-gray-2:#c1c3c8;--sl-color-gray-3:#888c96;--sl-color-gray-4:#555962;--sl-color-gray-5:#353841;--sl-color-gray-6:#23262f;--sl-color-black:#17181c;--sl-hue-orange:41;--sl-color-orange-low:hsl(var(--sl-hue-orange), 39%, 22%);--sl-color-orange:hsl(var(--sl-hue-orange), 82%, 63%);--sl-color-orange-high:hsl(var(--sl-hue-orange), 82%, 87%);--sl-hue-green:101;--sl-color-green-low:hsl(var(--sl-hue-green), 39%, 22%);--sl-color-green:hsl(var(--sl-hue-green), 82%, 63%);--sl-color-green-high:hsl(var(--sl-hue-green), 82%, 80%);--sl-hue-blue:234;--sl-color-blue-low:hsl(var(--sl-hue-blue), 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87%);--sl-color-accent-low:#17264f;--sl-color-accent:#3369ff;--sl-color-accent-high:#b3c7ff;--sl-color-text:var(--sl-color-gray-2);--sl-color-text-accent:var(--sl-color-accent-high);--sl-color-text-invert:var(--sl-color-accent-low);--sl-color-bg:var(--sl-color-black);--sl-color-bg-nav:var(--sl-color-gray-6);--sl-color-bg-sidebar:var(--sl-color-gray-6);--sl-color-bg-inline-code:var(--sl-color-gray-5);--sl-color-bg-accent:var(--sl-color-accent-high);--sl-color-hairline-light:var(--sl-color-gray-5);--sl-color-hairline:var(--sl-color-gray-6);--sl-color-hairline-shade:var(--sl-color-black);--sl-color-backdrop-overlay:#16181da8;--sl-shadow-sm:0px 1px 1px #0000001f, 0px 2px 1px #0000003d;--sl-shadow-md:0px 8px 4px #00000014, 0px 5px 2px #00000014, 0px 3px 2px #0000001f, 0px 1px 1px #00000026;--sl-shadow-lg:0px 25px 7px #00000008, 0px 16px 6px #0000001a, 0px 9px 5px #16181d54, 0px 4px 4px #000000bf, 0px 4px 2px #00000040;--sl-text-2xs:.75rem;--sl-text-xs:.8125rem;--sl-text-sm:.875rem;--sl-text-base:1rem;--sl-text-lg:1.125rem;--sl-text-xl:1.25rem;--sl-text-2xl:1.5rem;--sl-text-3xl:1.8125rem;--sl-text-4xl:2.1875rem;--sl-text-5xl:2.625rem;--sl-text-6xl:4rem;--sl-text-body:var(--sl-text-base);--sl-text-body-sm:var(--sl-text-xs);--sl-text-code:var(--sl-text-sm);--sl-text-code-sm:var(--sl-text-xs);--sl-text-h1:var(--sl-text-4xl);--sl-text-h2:var(--sl-text-3xl);--sl-text-h3:var(--sl-text-2xl);--sl-text-h4:var(--sl-text-xl);--sl-text-h5:var(--sl-text-lg);--sl-line-height:1.75;--sl-line-height-headings:1.2;--sl-font-system:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--sl-font-system-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--__sl-font:var(--sl-font,var(--sl-font-system)), var(--sl-font-system);--__sl-font-mono:var(--sl-font-mono,var(--sl-font-system-mono)), var(--sl-font-system-mono);--sl-nav-height:3.5rem;--sl-nav-pad-x:1rem;--sl-nav-pad-y:.75rem;--sl-mobile-toc-height:3rem;--sl-sidebar-width:18.75rem;--sl-sidebar-pad-x:1rem;--sl-content-width:45rem;--sl-content-pad-x:1rem;--sl-content-gap-y:1rem;--sl-main-pad:0 0 3vh 0;--sl-menu-button-size:2rem;--sl-nav-gap:var(--sl-content-pad-x);--sl-outline-offset-inside:-.1875rem;--sl-z-index-toc:4;--sl-z-index-menu:5;--sl-z-index-navbar:10;--sl-z-index-skiplink:20}:root[data-theme=light],[data-theme=light] ::backdrop{--sl-color-white:#17181c;--sl-color-gray-1:#23262f;--sl-color-gray-2:#353841;--sl-color-gray-3:#555962;--sl-color-gray-4:#888c96;--sl-color-gray-5:#c1c3c8;--sl-color-gray-6:#edeef3;--sl-color-gray-7:#f6f7f9;--sl-color-black:#fff;--sl-color-orange-high:hsl(var(--sl-hue-orange), 80%, 25%);--sl-color-orange:hsl(var(--sl-hue-orange), 90%, 60%);--sl-color-orange-low:hsl(var(--sl-hue-orange), 90%, 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(width>=72rem){:root{--sl-content-pad-x:1.5rem;--sl-mobile-toc-height:0rem}}}@layer starlight.reset{*,:before,:after{box-sizing:border-box}*{margin:0}html{color-scheme:dark;accent-color:var(--sl-color-accent);-webkit-text-size-adjust:100%;text-size-adjust:100%}html[data-theme=light]{color-scheme:light}body{font-family:var(--__sl-font);line-height:var(--sl-line-height);-webkit-font-smoothing:antialiased;color:var(--sl-color-text);background-color:var(--sl-color-bg)}[lang]:where(:lang(zh),:lang(ja)){text-autospace:normal}[lang]:where(:not(:lang(zh),:lang(ja))){text-autospace:initial}pre,code,samp,kbd{text-autospace:no-autospace}input,button,textarea,select{font:inherit}p,h1,h2,h3,h4,h5,h6,code{overflow-wrap:break-word}code{font-family:var(--__sl-font-mono)}}@layer starlight.core{.sl-banner:where(.astro-ofbg3qve){--__sl-banner-text:var(--sl-color-banner-text,var(--sl-color-text-invert));padding:var(--sl-nav-pad-y) var(--sl-nav-pad-x);background-color:var(--sl-color-banner-bg,var(--sl-color-bg-accent));color:var(--__sl-banner-text);line-height:var(--sl-line-height-headings);text-align:center;text-wrap:balance;box-shadow:var(--sl-shadow-sm)}.sl-banner:where(.astro-ofbg3qve) a{color:var(--__sl-banner-text)}.content-panel:where(.astro-a7po4psb){padding:1.5rem var(--sl-content-pad-x)}.content-panel:where(.astro-a7po4psb)+.content-panel:where(.astro-a7po4psb){border-top:1px solid var(--sl-color-hairline)}.sl-container:where(.astro-a7po4psb){max-width:var(--sl-content-width)}.sl-container:where(.astro-a7po4psb)>*+*{margin-top:1.5rem}@media (width>=72rem){.sl-container:where(.astro-a7po4psb){margin-inline:var(--sl-content-margin-inline,auto)}}p:where(.astro-gsljcgkv){border:1px solid var(--sl-color-orange);background-color:var(--sl-color-orange-low);color:var(--sl-color-orange-high);width:max-content;max-width:100%;font-size:var(--sl-text-body-sm);line-height:var(--sl-line-height-headings);text-align:start;align-items:center;gap:.75em;padding:.75em 1em}label:where(.astro-2z5xp7gb){--sl-label-icon-size:.875rem;--sl-caret-size:1.25rem;--sl-inline-padding:.5rem;color:var(--sl-color-gray-2);align-items:center;gap:.25rem;display:flex;position:relative}label:where(.astro-2z5xp7gb):hover{color:var(--sl-color-white)}.icon:where(.astro-2z5xp7gb){pointer-events:none;position:absolute;top:50%;transform:translateY(-50%)}select:where(.astro-2z5xp7gb){padding-block:.625rem;padding-inline:calc(var(--sl-label-icon-size) + var(--sl-inline-padding) + .25rem) calc(var(--sl-caret-size) + var(--sl-inline-padding) + .25rem);margin-inline:calc(var(--sl-inline-padding) * -1);width:calc(var(--sl-select-width) + var(--sl-inline-padding) * 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var(--sl-menu-button-size))}.sidebar-pane:where(.astro-yntsjkba){border:unset;padding:unset;height:unset;color:unset;z-index:var(--sl-z-index-menu);inset-block:var(--sl-nav-height) 0;background-color:var(--sl-color-black);scrollbar-gutter:stable;width:100%;position:fixed;inset-inline-start:0;overflow-y:auto}.sidebar-content:where(.astro-yntsjkba){height:100%;min-height:max-content;padding:1rem var(--sl-sidebar-pad-x) 0;flex-direction:column;gap:1rem}@media (width>=50rem){.sidebar-content:where(.astro-yntsjkba):after{content:"";padding-bottom:1px}}.main-frame:where(.astro-yntsjkba){padding-top:calc(var(--sl-nav-height) + var(--sl-mobile-toc-height));padding-inline-start:var(--sl-content-inline-start)}@media (width>=50rem){[data-has-sidebar] .header:where(.astro-yntsjkba){padding-inline-end:var(--sl-nav-pad-x)}.sidebar-pane:where(.astro-yntsjkba){width:var(--sl-sidebar-width);background-color:var(--sl-color-bg-sidebar);border-inline-end:1px solid var(--sl-color-hairline-shade);display:block}}ul:where(.astro-jugkfwgx){padding:0;list-style:none}a:where(.astro-jugkfwgx){--pad-inline:.5rem;padding-block:.25rem;padding-inline:calc(1rem * var(--depth) + var(--pad-inline)) var(--pad-inline);border-radius:.25rem;line-height:1.25;display:block}a:where(.astro-jugkfwgx)[aria-current=true]{color:var(--sl-color-text-accent)}.isMobile:where(.astro-jugkfwgx) a:where(.astro-jugkfwgx){--pad-inline:1rem;justify-content:space-between;gap:var(--pad-inline);border-top:1px solid var(--sl-color-gray-6);color:var(--sl-color-text);font-size:var(--sl-text-sm);outline-offset:var(--sl-outline-offset-inside);border-radius:0;padding-block:.5rem;text-decoration:none;display:flex}.isMobile:where(.astro-jugkfwgx):first-child>li:where(.astro-jugkfwgx):first-child>a:where(.astro-jugkfwgx){border-top:0}.isMobile:where(.astro-jugkfwgx) a:where(.astro-jugkfwgx)[aria-current=true],.isMobile:where(.astro-jugkfwgx) 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a:where(.astro-jugkfwgx)[aria-current=true]:after{content:"";background-color:var(--sl-color-text-accent);flex-shrink:0;width:1rem;-webkit-mask-image:url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHZpZXdCb3g9JzAgMCAxNCAxNCc+PHBhdGggZD0nTTEwLjkxNCA0LjIwNmEuNTgzLjU4MyAwIDAgMC0uODI4IDBMNS43NCA4LjU1NyAzLjkxNCA2LjcyNmEuNTk2LjU5NiAwIDAgMC0uODI4Ljg1N2wyLjI0IDIuMjRhLjU4My41ODMgMCAwIDAgLjgyOCAwbDQuNzYtNC43NmEuNTgzLjU4MyAwIDAgMCAwLS44NTdaJy8+PC9zdmc+Cg==);mask-image:url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHZpZXdCb3g9JzAgMCAxNCAxNCc+PHBhdGggZD0nTTEwLjkxNCA0LjIwNmEuNTgzLjU4MyAwIDAgMC0uODI4IDBMNS43NCA4LjU1NyAzLjkxNCA2LjcyNmEuNTk2LjU5NiAwIDAgMC0uODI4Ljg1N2wyLjI0IDIuMjRhLjU4My41ODMgMCAwIDAgLjgyOCAwbDQuNzYtNC43NmEuNTgzLjU4MyAwIDAgMCAwLS44NTdaJy8+PC9zdmc+Cg==);-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}nav:where(.astro-66cqc7ze){z-index:var(--sl-z-index-toc);top:calc(var(--sl-nav-height) - 1px);border-top:1px solid var(--sl-color-gray-5);background-color:var(--sl-color-bg-nav);position:fixed;inset-inline:0}@media (width>=50rem){nav:where(.astro-66cqc7ze){inset-inline-start:var(--sl-content-inline-start,0)}}summary:where(.astro-66cqc7ze){height:var(--sl-mobile-toc-height);border-bottom:1px solid var(--sl-color-hairline-shade);font-size:var(--sl-text-xs);outline-offset:var(--sl-outline-offset-inside);align-items:center;gap:.5rem;padding:.5rem 1rem}summary:where(.astro-66cqc7ze)::marker,summary:where(.astro-66cqc7ze)::-webkit-details-marker{display:none}.toggle:where(.astro-66cqc7ze){border:1px solid var(--sl-color-gray-5);background-color:var(--sl-color-black);user-select:none;cursor:pointer;border-radius:.5rem;flex-shrink:0;justify-content:space-between;align-items:center;gap:1rem;padding-block:.5rem;padding-inline:.75rem .5rem;line-height:1}details:where(.astro-66cqc7ze)[open] .toggle:where(.astro-66cqc7ze){color:var(--sl-color-white);border-color:var(--sl-color-accent)}details:where(.astro-66cqc7ze) .toggle:where(.astro-66cqc7ze):hover{color:var(--sl-color-white);border-color:var(--sl-color-gray-2)}[dir=rtl] .caret:where(.astro-66cqc7ze){transform:rotate(180deg)}details:where(.astro-66cqc7ze)[open] .caret:where(.astro-66cqc7ze){transform:rotate(90deg)}.display-current:where(.astro-66cqc7ze){white-space:nowrap;text-overflow:ellipsis;color:var(--sl-color-white);overflow:hidden}.dropdown:where(.astro-66cqc7ze){--border-top:1px;margin-top:calc(-1 * var(--border-top));border:var(--border-top) solid var(--sl-color-gray-6);border-top-color:var(--sl-color-hairline-shade);max-height:calc(85vh - var(--sl-nav-height) - var(--sl-mobile-toc-height));background-color:var(--sl-color-black);box-shadow:var(--sl-shadow-md);overscroll-behavior:contain;overflow-y:auto}.social-icons:where(.astro-p4azlveh){align-items:center;gap:1rem;margin-inline-end:auto;padding-block:1rem;display:flex}.social-icons:where(.astro-p4azlveh):empty{display:none}.mobile-preferences:where(.astro-p4azlveh){border-top:1px solid var(--sl-color-gray-6);flex-wrap:wrap;justify-content:space-between;column-gap:1rem;padding:.5rem 0}a:where(.astro-qb7clj6f){clip:rect(0, 0, 0, 0);top:.75rem;position:fixed;inset-inline-start:.75rem}a:where(.astro-qb7clj6f):focus{clip:unset;z-index:var(--sl-z-index-skiplink);color:var(--sl-color-text-invert);background-color:var(--sl-color-text-accent);box-shadow:var(--sl-shadow-lg);padding:.5rem 1rem;text-decoration:none;display:block}.main-pane:where(.astro-lrzkfocr){isolation:isolate}@media (width>=72rem){.right-sidebar-container:where(.astro-lrzkfocr){width:max(var(--sl-sidebar-width), calc(var(--sl-sidebar-width) + (100% - var(--sl-content-width) - var(--sl-sidebar-width)) / 2));order:2;margin-inline-start:auto;position:relative}.right-sidebar:where(.astro-lrzkfocr){border-inline-start:1px solid var(--sl-color-hairline);padding-top:var(--sl-nav-height);scrollbar-width:none;width:100%;height:100vh;position:fixed;top:0;overflow-y:auto}.main-pane:where(.astro-lrzkfocr){width:100%}[data-has-sidebar][data-has-toc] .main-pane:where(.astro-lrzkfocr){--sl-content-margin-inline:auto 0;width:min(calc(100% - var(--sl-sidebar-width)), calc(var(--sl-content-width) + (100% - var(--sl-content-width) - var(--sl-sidebar-width)) / 2));order:1}}}@layer starlight.content{.sl-markdown-content .sl-heading-wrapper{--sl-anchor-icon-size:.8275em;--sl-anchor-icon-gap:.25em;--sl-anchor-icon-space:calc(var(--sl-anchor-icon-size) + var(--sl-anchor-icon-gap));line-height:var(--sl-line-height-headings)}.sl-markdown-content 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.sl-heading-wrapper:has(>:first-child:is(.sr-only,[hidden]))>.sl-anchor-link{display:none}.sl-markdown-content .sl-anchor-link:after{content:"";position:absolute;inset:-.25rem -.5rem}.sl-markdown-content .sl-anchor-icon>svg{width:var(--sl-anchor-icon-size);vertical-align:top;transform:translateY(calc((var(--sl-line-height-headings) * 1em - var(--sl-anchor-icon-size)) / 2));display:inline;overflow:visible}@media (hover:hover){.sl-markdown-content .sl-anchor-link{opacity:0}.sl-markdown-content .sl-anchor-link:focus,.sl-markdown-content .sl-heading-wrapper:hover .sl-anchor-link{opacity:1}}.sl-markdown-content :not(a,strong,em,del,span,input,code,br)+:not(a,strong,em,del,span,input,code,br,:where(.not-content *)),.sl-markdown-content :not(a,strong,em,del,span,input,code,br)+:is(astro-island,astro-slot)>:not(a,strong,em,del,span,input,code,br,:where(.not-content *)):first-child{margin-top:var(--sl-content-gap-y)}.sl-markdown-content :not(h1,h2,h3,h4,h5,h6)+:is(h1,h2,h3,h4,h5,h6):not(:where(.not-content *)){margin-top:1.5em}.sl-markdown-content li+li:not(:where(.not-content *)),.sl-markdown-content dt+dt:not(:where(.not-content *)),.sl-markdown-content dt+dd:not(:where(.not-content *)),.sl-markdown-content dd+dd:not(:where(.not-content *)){margin-top:.25rem}.sl-markdown-content li:not(:where(.not-content *)){overflow-wrap:anywhere}.sl-markdown-content :is(ol,ul):has(>li>:not(a,strong,em,del,span,input,code,br,script,ol,ul))>li>:is(:last-child:not(a,strong,em,del,span,input,code,br,script,:where(.not-content *)),:not(script):has(~script:last-child):not(:has(~:not(script)))){margin-bottom:1.25rem}.sl-markdown-content dt:not(:where(.not-content *)){font-weight:700}.sl-markdown-content dd:not(:where(.not-content *)){padding-inline-start:1rem}.sl-markdown-content :is(h1,h2,h3,h4,h5,h6):not(:where(.not-content *)){color:var(--sl-color-white);line-height:var(--sl-line-height-headings);font-weight:600}.sl-markdown-content :is(img,picture,video,canvas,svg,iframe):not(:where(.not-content *)){max-width:100%;height:auto;display:block}.sl-markdown-content h1:not(:where(.not-content *)){font-size:var(--sl-text-h1)}.sl-markdown-content h2:not(:where(.not-content *)){font-size:var(--sl-text-h2)}.sl-markdown-content h3:not(:where(.not-content *)){font-size:var(--sl-text-h3)}.sl-markdown-content h4:not(:where(.not-content *)){font-size:var(--sl-text-h4)}.sl-markdown-content h5:not(:where(.not-content *)){font-size:var(--sl-text-h5)}.sl-markdown-content h6:not(:where(.not-content *)){font-size:var(--sl-text-h6)}.sl-markdown-content a:not(:where(.not-content *)){color:var(--sl-color-text-accent)}.sl-markdown-content a:hover:not(:where(.not-content *)){color:var(--sl-color-white)}.sl-markdown-content code:not(:where(.not-content *)){background-color:var(--sl-color-bg-inline-code);font-size:var(--sl-text-code-sm);margin-block:-.125rem;padding:.125rem .375rem}.sl-markdown-content :is(h1,h2,h3,h4,h5,h6) code{font-size:inherit}.sl-markdown-content pre:not(:where(.not-content *)){border:1px solid var(--sl-color-gray-5);font-size:var(--sl-text-code);tab-size:2;padding:.75rem 1rem}.sl-markdown-content pre code:not(:where(.not-content *)){all:unset;font-family:var(--__sl-font-mono)}.sl-markdown-content blockquote:not(:where(.not-content *)){border-inline-start:1px solid var(--sl-color-gray-5);padding-inline-start:1rem}.sl-markdown-content table:not(:where(.not-content *)){border-spacing:0;display:block;overflow:auto}.sl-markdown-content :is(th,td):not(:where(.not-content *)){border-bottom:1px solid var(--sl-color-gray-5);vertical-align:baseline;padding:.5rem 1rem}.sl-markdown-content :is(th:first-child,td:first-child):not(:where(.not-content *)){padding-inline-start:0}.sl-markdown-content :is(th:last-child,td:last-child):not(:where(.not-content *)){padding-inline-end:0}.sl-markdown-content th:not(:where(.not-content *)){color:var(--sl-color-white);font-weight:600}.sl-markdown-content th:not([align]):not(:where(.not-content *)){text-align:start}.sl-markdown-content .starlight-aside :is(th,td,hr,blockquote):not(:where(.not-content *)){border-color:var(--sl-color-gray-4)}@supports (border-color:color-mix(in srgb, var(--sl-color-asides-text-accent) 30%, transparent)
	){.sl-markdown-content .starlight-aside :is(th,td,hr,blockquote):not(:where(.not-content *)){border-color:color-mix(in srgb, var(--sl-color-asides-text-accent) 30%, transparent)}}@supports (border-color:color-mix(in srgb, var(--sl-color-asides-text-accent) 12%, transparent)
	){.sl-markdown-content .starlight-aside code:not(:where(.not-content *)){background-color:color-mix(in srgb, var(--sl-color-asides-text-accent) 12%, transparent)}}.sl-markdown-content hr:not(:where(.not-content *)){border:0;border-bottom:1px solid var(--sl-color-hairline)}.sl-markdown-content details:not(:where(.not-content *)){--sl-details-border-color:var(--sl-color-gray-5);--sl-details-border-color--hover:var(--sl-color-text-accent);border-inline-start:2px solid var(--sl-details-border-color);padding-inline-start:1rem}.sl-markdown-content details:not([open]):hover:not(:where(.not-content *)),.sl-markdown-content details:has(>summary:hover):not(:where(.not-content *)){border-color:var(--sl-details-border-color--hover)}.sl-markdown-content summary:not(:where(.not-content *)){color:var(--sl-color-white);cursor:pointer;margin-inline-start:-.5rem;padding-inline-start:.5rem;font-weight:600;display:block}.sl-markdown-content details[open]>summary:not(:where(.not-content *)){margin-bottom:1rem}.sl-markdown-content summary:not(:where(.not-content *))::marker,.sl-markdown-content summary:not(:where(.not-content *))::-webkit-details-marker{display:none}.sl-markdown-content summary:not(:where(.not-content *)):before{--sl-details-marker-size:1.25rem;content:"";height:var(--sl-details-marker-size);width:var(--sl-details-marker-size);margin-inline:calc((var(--sl-details-marker-size) / 4) * -1) .25rem;vertical-align:middle;background-color:currentColor;display:inline-block;-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M14.8 11.3 10.6 7a1 1 0 1 0-1.4 1.5l3.5 3.5-3.5 3.5a1 1 0 0 0 0 1.4 1 1 0 0 0 .7.3 1 1 0 0 0 .7-.3l4.2-4.2a1 1 0 0 0 0-1.4Z'/%3E%3C/svg%3E%0A");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M14.8 11.3 10.6 7a1 1 0 1 0-1.4 1.5l3.5 3.5-3.5 3.5a1 1 0 0 0 0 1.4 1 1 0 0 0 .7.3 1 1 0 0 0 .7-.3l4.2-4.2a1 1 0 0 0 0-1.4Z'/%3E%3C/svg%3E%0A");-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}@media (prefers-reduced-motion:no-preference){.sl-markdown-content summary:not(:where(.not-content *)):before{transition:transform .2s ease-in-out}}.sl-markdown-content details[open]>summary:not(:where(.not-content *)):before{transform:rotate(90deg)}[dir=rtl] .sl-markdown-content summary:not(:where(.not-content *)):before,.sl-markdown-content [dir=rtl] summary:not(:where(.not-content *)):before{transform:rotate(180deg)}.sl-markdown-content summary:not(:where(.not-content *)) p:only-child{display:inline}.sl-markdown-content .starlight-aside details:not(:where(.not-content *)){--sl-details-border-color:var(--sl-color-asides-border);--sl-details-border-color--hover:var(--sl-color-asides-text-accent)}}@layer starlight.components{.starlight-aside{border-inline-start:.25rem solid var(--sl-color-asides-border);color:var(--sl-color-white);padding:1rem}.starlight-aside--note{--sl-color-asides-text-accent:var(--sl-color-blue-high);--sl-color-asides-border:var(--sl-color-blue);background-color:var(--sl-color-blue-low)}.starlight-aside--tip{--sl-color-asides-text-accent:var(--sl-color-purple-high);--sl-color-asides-border:var(--sl-color-purple);background-color:var(--sl-color-purple-low)}.starlight-aside--caution{--sl-color-asides-text-accent:var(--sl-color-orange-high);--sl-color-asides-border:var(--sl-color-orange);background-color:var(--sl-color-orange-low)}.starlight-aside--danger{--sl-color-asides-text-accent:var(--sl-color-red-high);--sl-color-asides-border:var(--sl-color-red);background-color:var(--sl-color-red-low)}.starlight-aside__title{font-size:var(--sl-text-h5);font-weight:600;line-height:var(--sl-line-height-headings);color:var(--sl-color-asides-text-accent);align-items:center;gap:.5rem;display:flex}.starlight-aside__icon{width:1em;height:1em;font-size:1.333em;overflow:visible}.starlight-aside__title+.starlight-aside__content{margin-top:.5rem}.starlight-aside__content:empty{display:none}.starlight-aside__content a{color:var(--sl-color-asides-text-accent)}svg:where(.astro-hkc32dio){color:var(--sl-icon-color);font-size:var(--sl-icon-size,1em);width:1em;height:1em;overflow:visible}.label-icon:where(.astro-2z5xp7gb){font-size:var(--sl-label-icon-size);inset-inline-start:0}.caret:where(.astro-2z5xp7gb){font-size:var(--sl-caret-size);inset-inline-end:0}.sl-link-button:where(.astro-dcqstdaq){font-size:var(--sl-text-sm);outline-offset:.25rem;border:1px solid #0000;border-radius:999rem;align-items:center;gap:.5em;padding:.4375rem 1.125rem;line-height:1.1875;text-decoration:none;display:inline-flex}.sl-link-button:where(.astro-dcqstdaq).primary{background:var(--sl-color-text-accent);border-color:var(--sl-color-text-accent);color:var(--sl-color-black)}.sl-link-button:where(.astro-dcqstdaq).primary:hover{color:var(--sl-color-black)}.sl-link-button:where(.astro-dcqstdaq).secondary{border-color:inherit;color:var(--sl-color-white)}.sl-link-button:where(.astro-dcqstdaq).minimal{color:var(--sl-color-white);padding-inline:0}.sl-link-button:where(.astro-dcqstdaq) svg{flex-shrink:0}@media (width>=50rem){.sl-link-button:where(.astro-dcqstdaq){font-size:var(--sl-text-base);padding:.9375rem 1.25rem}}.sl-markdown-content .sl-link-button:where(.astro-dcqstdaq){margin-inline-end:1rem}.sl-markdown-content .sl-link-button:where(.astro-dcqstdaq):not(:where(p *)){margin-block:1rem}}@layer starlight.utils{.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.sl-hidden{display:none}.sl-flex{display:flex}.sl-block{display:block}@media (width>=50rem){.md\:sl-hidden{display:none}.md\:sl-flex{display:flex}.md\:sl-block{display:block}}@media (width>=72rem){.lg\:sl-hidden{display:none}.lg\:sl-flex{display:flex}.lg\:sl-block{display:block}}[data-theme=light] .light\:sl-hidden,[data-theme=dark] .dark\:sl-hidden{display:none}[dir=rtl] .rtl\:flip:not(:where([dir=rtl] [dir=ltr] *)){transform:matrix(-1,0,0,1,0,0)}}.lesson-footer:where(.astro-ft5hcqwl){border-block-start:1px solid var(--edu-border);margin-block-start:var(--edu-space-8);padding-block-start:var(--edu-space-5)}.lesson-pager:where(.astro-ft5hcqwl){gap:var(--edu-space-4);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.lesson-pager__item:where(.astro-ft5hcqwl){gap:var(--edu-space-1);min-height:112px;padding:var(--edu-space-4);border:1px solid 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6px;font-size:9px}.lesson-pager__title:where(.astro-ft5hcqwl){color:var(--edu-text);font-family:var(--edu-font-sans);font-size:var(--edu-text-sm);text-wrap:balance;font-weight:600;line-height:1.45}.lesson-pager__item--soon:where(.astro-ft5hcqwl) .lesson-pager__title:where(.astro-ft5hcqwl){color:var(--edu-text-secondary)}.lesson-pager__meta:where(.astro-ft5hcqwl){color:var(--edu-text-muted);font-family:var(--edu-font-sans);font-size:var(--edu-text-xs);line-height:1.5}.lesson-pager__empty:where(.astro-ft5hcqwl){display:block}.lesson-footer__meta:where(.astro-ft5hcqwl){justify-content:space-between;align-items:center;gap:var(--edu-space-2) var(--edu-space-4);border-block-start:1px solid 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