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.article-toc-title svg{width:20px;height:20px;stroke-width:1.33;transition:transform .3s ease}.article-content{font-family:var(--article-font-family);font-size:var(--article-font-size);padding:0 var(--card-padding);line-height:var(--article-line-height)}.article-content>p{margin:1.5em 0}.article-content h1,.article-content h2,.article-content h3,.article-content h4,.article-content h5,.article-content h6{margin-inline-start:calc((var(--card-padding)) * -1);padding-inline-start:calc(var(--card-padding) - var(--heading-border-size));border-inline-start:var(--heading-border-size)solid var(--accent-color);position:relative}.article-content h1 a.header-anchor,.article-content h2 a.header-anchor,.article-content h3 a.header-anchor,.article-content h4 a.header-anchor,.article-content h5 a.header-anchor,.article-content h6 a.header-anchor{transition:opacity .3s ease;opacity:0;position:absolute;left:0;width:var(--card-padding);text-align:center;color:var(--accent-color)}.article-content h1 a.header-anchor:before,.article-content h2 a.header-anchor:before,.article-content h3 a.header-anchor:before,.article-content h4 a.header-anchor:before,.article-content h5 a.header-anchor:before,.article-content h6 a.header-anchor:before{content:"#"}.article-content h1:hover a.header-anchor,.article-content h1:focus a.header-anchor,.article-content h2:hover a.header-anchor,.article-content h2:focus a.header-anchor,.article-content h3:hover a.header-anchor,.article-content h3:focus a.header-anchor,.article-content h4:hover a.header-anchor,.article-content h4:focus a.header-anchor,.article-content h5:hover a.header-anchor,.article-content h5:focus a.header-anchor,.article-content h6:hover a.header-anchor,.article-content h6:focus a.header-anchor{opacity:1}.article-content figure{text-align:center}.article-content figure figcaption{font-size:1.4rem;color:var(--card-text-color-secondary)}.article-content blockquote{position:relative;margin:1.5em 0;border-inline-start:var(--blockquote-border-size)solid var(--card-separator-color);padding:var(--spacing-md)calc(var(--card-padding) - var(--blockquote-border-size));background-color:var(--blockquote-background-color)}.article-content blockquote .cite{display:block;text-align:right;font-size:.75em}.article-content blockquote .cite a{text-decoration:underline}.article-content blockquote.alert .alert-header{display:flex;align-items:center;gap:.5em;font-weight:700}.article-content blockquote.alert .alert-body>:last-child{margin-bottom:0}.article-content blockquote.alert.alert-note{border-color:var(--alert-note-color);background-color:var(--alert-note-background)}.article-content blockquote.alert.alert-note .alert-title{color:var(--alert-note-color)}.article-content blockquote.alert.alert-tip{border-color:var(--alert-tip-color);background-color:var(--alert-tip-background)}.article-content blockquote.alert.alert-tip .alert-title{color:var(--alert-tip-color)}.article-content blockquote.alert.alert-important{border-color:var(--alert-important-color);background-color:var(--alert-important-background)}.article-content blockquote.alert.alert-important .alert-title{color:var(--alert-important-color)}.article-content blockquote.alert.alert-warning{border-color:var(--alert-warning-color);background-color:var(--alert-warning-background)}.article-content blockquote.alert.alert-warning .alert-title{color:var(--alert-warning-color)}.article-content blockquote.alert.alert-caution{border-color:var(--alert-caution-color);background-color:var(--alert-caution-background)}.article-content blockquote.alert.alert-caution .alert-title{color:var(--alert-caution-color)}.article-content hr{width:100px;margin:40px auto;background:var(--card-text-color-tertiary);height:2px;border:0;opacity:.55}.article-content code{color:var(--code-text-color);background-color:var(--code-background-color);padding:2px 4px;border-radius:var(--tag-border-radius);font-family:var(--code-font-family)}.article-content a,.article-content code{word-break:break-word}.article-content .gallery{position:relative;display:flex;flex-direction:row;justify-content:center;margin:1.5em 0;gap:var(--spacing-sm)}.article-content .gallery figure{margin:0}.article-content pre{overflow-x:auto;display:block;background-color:var(--pre-background-color);color:var(--pre-text-color);font-family:var(--code-font-family);line-height:1.428571429;word-break:break-all;padding:var(--card-padding)}[dir=rtl] .article-content pre{direction:ltr}.article-content pre code{color:unset;border:none;background:0 0;padding:0}.article-content .highlight{background-color:var(--pre-background-color);padding:var(--card-padding);position:relative}.article-content .highlight pre{background-color:initial}.article-content .highlight:hover .copyCodeButton{opacity:1}[dir=rtl] .article-content .highlight{direction:ltr}.article-content .highlight pre{padding:0;margin:0;width:auto}.article-content .copyCodeButton{position:absolute;top:calc(var(--card-padding));right:calc(var(--card-padding));background:var(--card-background);border:none;box-shadow:var(--shadow-l2);border-radius:var(--tag-border-radius);padding:8px 16px;color:var(--card-text-color-main);cursor:pointer;font-size:14px;opacity:0;transition:opacity .3s ease}.article-content .table-wrapper{padding:0 var(--card-padding);overflow-x:auto;display:block}.article-content table{width:100%;border-collapse:collapse;border-spacing:0;margin-bottom:1.5em;font-size:.96em}.article-content th,.article-content td{text-align:left;padding:4px 8px 4px 10px;border:1px solid var(--table-border-color)}.article-content td{vertical-align:top}.article-content tr:nth-child(even){background-color:var(--tr-even-background-color)}.article-content .twitter-tweet{color:var(--card-text-color-main)}.article-content .video-wrapper{position:relative;width:100%;height:0;padding-bottom:56.25%;overflow:hidden}.article-content .video-wrapper>iframe,.article-content .video-wrapper>video{position:absolute;width:100%;height:100%;left:0;top:0;border:0}.article-content .gitlab-embed-snippets{margin:0!important}.article-content .gitlab-embed-snippets .file-holder.snippet-file-content{margin-block-end:0!important;margin-block-start:0!important;margin-left:calc((var(--card-padding)) * -1)!important;margin-right:calc((var(--card-padding)) * -1)!important;padding:0 var(--card-padding)!important}.article-content blockquote,.article-content figure,.article-content .highlight,.article-content pre,.article-content .gallery,.article-content .video-wrapper,.article-content .table-wrapper,.article-content .s_video_simple{margin-left:calc((var(--card-padding)) * -1);margin-right:calc((var(--card-padding)) * -1);width:calc(100% + var(--card-padding) * 2)}.article-content .katex-display>.katex{overflow-x:auto;overflow-y:hidden}.article-content kbd{border:1px solid var(--kbd-border-color);font-weight:700;font-size:.9em;line-height:1;padding:2px 4px;border-radius:4px;display:inline-block}.section-card{background-color:var(--card-background);box-shadow:var(--shadow-l1);border-radius:var(--card-border-radius);padding:var(--small-card-padding);display:flex;align-items:center;gap:var(--spacing-lg);--separation:15px}.section-card .section-term{font-size:2.2rem;margin:0;color:var(--card-text-color-main)}.section-card .section-description{font-weight:400;color:var(--card-text-color-secondary);font-size:1.6rem;margin:0}.section-card .section-details{flex-grow:1;display:flex;flex-direction:column;gap:8px}.section-card .section-image img{width:60px;height:60px;object-fit:cover}.section-card .section-count{color:var(--card-text-color-tertiary);font-size:1.4rem;margin:0;font-weight:700;text-transform:uppercase}@property --left-edge-fade-size{syntax: "<length>";
  inherits: false;
  initial-value: 0px; }@property --right-edge-fade-size{syntax: "<length>";
  inherits: false;
  initial-value: 64px; }.subsection-list{--shadow-overlap-x:calc(var(--shadow-l2-blur) + 4px);--shadow-overlap-y:calc(var(--shadow-l2-blur) + var(--shadow-l2-y) + 4px);--edge-fade-size:64px;--left-edge-fade-size:0px;--right-edge-fade-size:var(--edge-fade-size);overflow-x:auto;--overlap-x:min(var(--shadow-overlap-x), var(--container-padding));margin-left:calc(var(--overlap-x) * -1);margin-right:calc(var(--overlap-x) * -1);margin-bottom:calc(var(--shadow-overlap-y) * -1);--subsection-mask-image:linear-gradient(
        to right,
        transparent 0%,
        rgb(0 0 0 / 0.06) calc(var(--left-edge-fade-size) * 0.12),
        rgb(0 0 0 / 0.2) calc(var(--left-edge-fade-size) * 0.3),
        rgb(0 0 0 / 0.45) calc(var(--left-edge-fade-size) * 0.52),
        rgb(0 0 0 / 0.72) calc(var(--left-edge-fade-size) * 0.76),
        black var(--left-edge-fade-size),
        black calc(100% - var(--right-edge-fade-size)),
        rgb(0 0 0 / 0.72) calc(100% - (var(--right-edge-fade-size) * 0.76)),
        rgb(0 0 0 / 0.45) calc(100% - (var(--right-edge-fade-size) * 0.52)),
        rgb(0 0 0 / 0.2) calc(100% - (var(--right-edge-fade-size) * 0.3)),
        rgb(0 0 0 / 0.06) calc(100% - (var(--right-edge-fade-size) * 0.12)),
        transparent 100%
    );-webkit-mask-image:var(--subsection-mask-image);mask-image:var(--subsection-mask-image)}[dir=rtl] .subsection-list{margin-left:calc(var(--overlap-x) * -1);margin-right:calc(var(--overlap-x) * -1)}.subsection-list .article-list--tile{display:flex;padding:var(--spacing-xs)var(--overlap-x)var(--shadow-overlap-y);width:max-content;gap:var(--spacing-lg)}[dir=rtl] .subsection-list .article-list--tile{padding:var(--spacing-xs)var(--overlap-x)var(--shadow-overlap-y)}.subsection-list .article-list--tile article{flex-shrink:0}.subsection-list .article-list--tile article .article-title{margin:0;font-size:1.8rem}.subsection-list .article-list--tile article .article-details{padding:var(--spacing-lg)}@supports(animation-timeline:scroll(self inline)){.subsection-list{animation:subsection-left-fade linear both,subsection-right-fade linear both;animation-timeline:scroll(self inline);animation-range:1px 24px,0% 100%;animation-timing-function:ease-out,linear}}@keyframes subsection-left-fade{from{--left-edge-fade-size:0px}to{--left-edge-fade-size:var(--edge-fade-size)}}@keyframes subsection-right-fade{0%,92%{--right-edge-fade-size:var(--edge-fade-size)}100%{--right-edge-fade-size:0px}}.not-found-card{background-color:var(--card-background);box-shadow:var(--shadow-l1);border-radius:var(--card-border-radius);padding:var(--card-padding)}.search-form{position:relative;--button-size:80px}.search-form.widget{--button-size:60px}.search-form.widget label{font-size:1.3rem;top:var(--spacing-sm)}.search-form.widget input{font-size:1.5rem;padding:var(--spacing-2xl)var(--spacing-lg)var(--spacing-md)}.search-form p{position:relative;margin:0}.search-form label{position:absolute;top:var(--spacing-md);inset-inline-start:var(--spacing-lg);font-size:1.4rem;color:var(--card-text-color-tertiary)}.search-form input{padding:40px 20px 20px;background-color:var(--card-background);box-shadow:var(--shadow-l1);border-radius:var(--card-border-radius);color:var(--card-text-color-main);width:100%;border:0;-webkit-appearance:none;appearance:none;transition:box-shadow .3s ease;font-size:1.8rem}.search-form input:focus{outline:0;box-shadow:var(--shadow-l2)}.search-form button{position:absolute;inset-inline-end:0;top:0;height:100%;width:var(--button-size);cursor:pointer;background-color:initial;border:0;padding:0 10px}.search-form button:focus{outline:0}.search-form button:focus svg{stroke-width:2;color:var(--accent-color)}.search-form button svg{color:var(--card-text-color-secondary);stroke-width:1.33;transition:all .3s ease;width:20px;height:20px}.search-result.hidden{display:none}.cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:9999;padding:var(--container-padding);pointer-events:none}.cookie-banner[aria-hidden=true]{display:none}.cookie-banner__content{max-width:900px;margin:0 auto;background:var(--card-background);border-radius:var(--card-border-radius);box-shadow:var(--shadow-l2);padding:var(--card-padding);display:flex;flex-direction:column;gap:var(--spacing-md);pointer-events:auto}@media(min-width:768px){.cookie-banner__content{flex-direction:row;flex-wrap:wrap;align-items:center;gap:var(--spacing-lg)}}.cookie-banner__text{flex:1;min-width:200px}.cookie-banner__text strong{display:block;color:var(--card-text-color-main);font-size:1.6rem;margin-bottom:var(--spacing-xs)}.cookie-banner__text p{color:var(--card-text-color-secondary);font-size:1.4rem;line-height:1.6;margin:0}.cookie-banner__actions{display:flex;gap:var(--spacing-sm);flex-shrink:0}.cookie-banner__settings-link{width:auto;align-self:flex-start;background:0 0;border:none;color:var(--accent-color);font-size:1.3rem;cursor:pointer;padding:5px}.cookie-banner__settings-link:hover{text-decoration:underline}@media(min-width:768px){.cookie-banner__settings-link{margin-left:auto;align-self:center}}.cookie-btn{padding:10px 20px;border-radius:var(--tag-border-radius);font-size:1.4rem;font-weight:500;cursor:pointer;transition:all .2s ease;border:none}.cookie-btn--primary{background:var(--accent-color);color:var(--accent-color-text)}.cookie-btn--primary:hover{background:var(--accent-color-darker)}.cookie-btn--secondary{background:0 0;color:var(--card-text-color-main);border:1.5px solid var(--card-separator-color)}.cookie-btn--secondary:hover{background:var(--card-background-selected)}.cookie-settings{padding-top:20px;border-top:1.5px solid var(--card-separator-color)}.cookie-settings[aria-hidden=true]{display:none}.cookie-settings h3{color:var(--card-text-color-main);font-size:1.6rem;margin:0 0 var(--spacing-md)}.cookie-settings__actions{display:flex;justify-content:flex-end;gap:var(--spacing-sm);margin-top:var(--spacing-lg)}.cookie-category{padding:var(--spacing-md)0;border-bottom:1px solid var(--card-separator-color)}.cookie-category:last-of-type{border-bottom:none}.cookie-category label{display:flex;align-items:center;gap:var(--spacing-sm);cursor:pointer}.cookie-category label input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent-color);cursor:pointer}.cookie-category label input[type=checkbox]:disabled{opacity:.6;cursor:not-allowed}.cookie-category label strong{color:var(--card-text-color-main);font-size:1.5rem}.cookie-category p{color:var(--card-text-color-secondary);font-size:1.3rem;margin:8px 0 0 28px;line-height:1.5}.cookie-settings-link{display:inline-block;color:var(--body-text-color);font-size:1.2rem;cursor:pointer;background:0 0;border:none;padding:0}.cookie-settings-link:hover{color:var(--accent-color);text-decoration:underline}.consent-placeholder{background-color:var(--card-background);box-shadow:var(--shadow-l1);border-radius:var(--card-border-radius);padding:var(--card-padding);text-align:center;color:var(--card-text-color-secondary);font-size:1.4rem}.consent-placeholder p{margin:0 0 var(--spacing-md)}a{text-decoration:none;color:var(--accent-color)}a:hover{color:var(--accent-color-darker)}a.link{box-shadow:0 -2px rgba(var(--link-background-color),var(--link-background-opacity))inset;transition:all .3s ease}a.link:hover{box-shadow:0 calc(-1rem * var(--article-line-height))rgba(var(--link-background-color),var(--link-background-opacity-hover))inset}.section-title{text-transform:uppercase;margin-top:0;margin-bottom:var(--spacing-sm);display:block;font-size:1.6rem;font-weight:700;color:var(--body-text-color)}.section-title a{color:var(--body-text-color)}:root{--site-card-radius:28px;--site-pill-radius:999px;--card-border-radius:var(--site-card-radius);--tag-border-radius:var(--site-card-radius)}@media(min-width:768px){.left-sidebar{--sidebar-element-separation:clamp(16px, 2.2vh, var(--spacing-xl));box-sizing:border-box;height:100vh;height:100dvh;max-height:100dvh;padding-top:clamp(20px,4vh,var(--main-top-padding));padding-bottom:clamp(14px,2.8vh,var(--main-top-padding))}.left-sidebar>header{gap:clamp(12px,1.8vh,var(--spacing-xl))}}.menu-social a{color:var(--body-text-color);opacity:.78;display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;line-height:0}.menu-social svg,.menu-social .hm-icon{width:18px;height:18px;display:block}.menu-social svg{stroke:currentColor;stroke-width:1.33}.menu-social [title=X] svg,.menu-social [title=X] .hm-icon{width:16px;height:16px}.menu-social [title=小红书] svg,.menu-social [title=小红书] .hm-icon{width:18px;height:18px}#main-menu li a>svg,#main-menu li a>.hm-icon{width:20px;height:20px;justify-self:center}#main-menu li a span{white-space:nowrap}#main-menu{--menu-hover-top:0px;--menu-hover-left:0px;--menu-hover-width:0px;--menu-hover-height:0px;--menu-hover-opacity:0;--sidebar-menu-gap:clamp(20px, 3.2vh, var(--spacing-xl));position:relative;isolation:isolate;padding-top:clamp(8px,1.8vh,22px);padding-left:0;padding-right:0;padding-bottom:2px;box-sizing:border-box;align-items:center;overflow-x:visible;gap:var(--sidebar-menu-gap);scrollbar-gutter:stable}#main-menu::before{content:"";position:absolute;z-index:0;top:var(--menu-hover-top);left:var(--menu-hover-left);width:var(--menu-hover-width);height:var(--menu-hover-height);opacity:var(--menu-hover-opacity);pointer-events:none;border:1px solid var(--card-separator-color);border-radius:999px;background:linear-gradient(135deg,var(--card-background-selected) 0%,var(--card-background) 100%);box-shadow:0 14px 28px rgba(0,0,0,6%),inset 0 1px rgba(255,255,255,.32);transition:top .42s cubic-bezier(.22,1,.36,1),left .42s cubic-bezier(.22,1,.36,1),width .42s cubic-bezier(.22,1,.36,1),height .42s cubic-bezier(.22,1,.36,1),opacity .18s ease}#main-menu>li{z-index:1;width:calc(100% - 16px);max-width:220px;margin-inline:auto}#main-menu>li:not(.menu-bottom-section)>a{position:relative;z-index:1;border:1px solid transparent;border-radius:999px;padding:8px 14px;transform-origin:center;display:grid;grid-template-columns:24px minmax(0,1fr);align-items:center;column-gap:var(--menu-icon-separation);width:100%;box-sizing:border-box;transition:color .2s ease,font-weight .2s ease,transform .2s ease,background .2s ease,box-shadow .24s ease,border-color .2s ease}#main-menu>li.current>a,#main-menu>li:not(.menu-bottom-section).is-menu-hovered>a,#main-menu>li:not(.menu-bottom-section)>a:hover,#main-menu>li:not(.menu-bottom-section)>a:focus-visible{color:var(--accent-color);font-weight:700;transform:scale(1.02)}#main-menu.is-hovering-menu>li.current:not(.is-menu-hovered)>a{color:var(--body-text-color);font-weight:inherit;transform:none}#main-menu>li:not(.menu-bottom-section)>a:focus-visible{outline:2px solid var(--accent-color);outline-offset:4px}#main-menu .menu-bottom-section{width:calc(100% - 16px);max-width:220px;margin-inline:auto}#main-menu .menu-bottom-section .menu{align-items:stretch;width:100%;gap:clamp(18px,2.8vh,var(--spacing-xl))}#main-menu .menu-bottom-section #i18n-switch,#main-menu .menu-bottom-section #dark-mode-toggle{width:100%;display:grid;grid-template-columns:24px minmax(110px,1fr);align-items:center;column-gap:var(--menu-icon-separation);padding:8px 14px;box-sizing:border-box}#main-menu .menu-bottom-section #i18n-switch select{min-width:110px;padding-right:4px;text-overflow:clip}#main-menu .menu-bottom-section #i18n-switch>svg,#main-menu .menu-bottom-section #dark-mode-toggle>svg{justify-self:center;margin:0}@media(min-width:768px){#main-menu{max-height:none;min-height:0}}@media(prefers-reduced-motion:reduce){#main-menu::before{transition:opacity .12s ease}#main-menu>li:not(.menu-bottom-section)>a{transition:color .12s ease}#main-menu>li:not(.menu-bottom-section).is-menu-hovered>a,#main-menu>li:not(.menu-bottom-section)>a:hover,#main-menu>li:not(.menu-bottom-section)>a:focus-visible{transform:none}}@keyframes home-profile-enter{from{opacity:0;transform:translateY(18px)scale(.92);filter:blur(8px)}to{opacity:1;transform:translateY(0)scale(1);filter:blur(0)}}@keyframes home-profile-item-enter{from{opacity:0;transform:translateY(12px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes sidebar-profile-arrive{from{opacity:0;transform:translate(160px,96px)scale(1.28);filter:blur(8px)}to{opacity:1;transform:translate(0,0)scale(1);filter:blur(0)}}@keyframes sidebar-social-arrive{from{opacity:0;transform:translate(140px,72px)scale(1.16);filter:blur(6px)}to{opacity:1;transform:translate(0,0)scale(1);filter:blur(0)}}body.is-arriving-from-home:not(.home-profile-layout) .left-sidebar>header{transform-origin:center top;animation:sidebar-profile-arrive .5s cubic-bezier(.22,1,.36,1)both}body.is-arriving-from-home:not(.home-profile-layout) .left-sidebar>.menu-social{transform-origin:left center;animation:sidebar-social-arrive .48s .06s cubic-bezier(.22,1,.36,1)both}.home-profile-layout .left-sidebar>header,.home-profile-layout .left-sidebar>.menu-social{display:none}.home-profile-layout .main{display:flex;flex-direction:column}.home-profile-layout .home-profile{width:min(100%,680px);margin:16px auto 34px;text-align:center;display:flex;flex-direction:column;align-items:center;transform-origin:center top;animation:home-profile-enter .58s cubic-bezier(.22,1,.36,1)both;transition:opacity .22s ease,transform .32s cubic-bezier(.22,1,.36,1),filter .22s ease}.home-profile-layout .home-profile__avatar,.home-profile-layout .home-profile__copy,.home-profile-layout .home-profile__social{animation:home-profile-item-enter .52s cubic-bezier(.22,1,.36,1)both}.home-profile-layout .home-profile__copy{animation-delay:.06s}.home-profile-layout .home-profile__social{animation-delay:.12s}.home-profile-layout .home-profile__avatar{position:relative;width:clamp(136px,18vw,184px);height:clamp(136px,18vw,184px);margin:0}.home-profile-layout .home-profile__avatar a,.home-profile-layout .home-profile__avatar img{display:block;width:100%;height:100%}.home-profile-layout .home-profile__avatar img{border-radius:50%;object-fit:cover;box-shadow:0 24px 42px -22px rgba(0,0,0,.45)}.home-profile-layout .home-profile__emoji{position:absolute;right:-6px;bottom:6px;width:clamp(46px,6vw,64px);height:clamp(46px,6vw,64px);border-radius:50%;display:grid;place-items:center;background:var(--card-background);box-shadow:var(--shadow-l2);font-size:clamp(2rem,2.8vw,3rem)}.home-profile-layout .home-profile__copy{margin-top:24px}.home-profile-layout .home-profile__copy h1{margin:4px 0 0;color:var(--accent-color);font-size:clamp(3rem,5vw,5.4rem);line-height:1}.home-profile-layout .home-profile__greeting,.home-profile-layout .home-profile__subtitle{margin:0;color:var(--body-text-color)}.home-profile-layout .home-profile__greeting{font-size:clamp(1.7rem,2.1vw,2.4rem);font-weight:600}.home-profile-layout .home-profile__subtitle{margin-top:12px;font-size:clamp(1.6rem,2vw,2.2rem)}.home-profile-layout .home-profile__social{--social-hover-top:0px;--social-hover-left:0px;--social-hover-size:0px;--social-hover-opacity:0;list-style:none;padding:0;margin:24px 0 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