:root{--main-top-padding:35px;--body-background:#f5f5fa;--accent-color:#34495e;--accent-color-darker:#2c3e50;--accent-color-text:#fff;--body-text-color:#707070;--tag-border-radius:4px;--section-separation:40px;--scrollbar-thumb:#d9d9d9}@media (width>=1280px){:root{--main-top-padding:50px}}:root[data-scheme=dark]{--body-background:#303030;--accent-color:#ecf0f1;--accent-color-darker:#bdc3c7;--accent-color-text:#000;--body-text-color:#ffffffb3;--scrollbar-thumb:#666;--blockquote-background-color:#4b4b4b;--code-text-color:#ffffffe6}:root{--sys-font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Droid Sans","Helvetica Neue";--zh-font-family:"PingFang SC","Hiragino Sans GB","Droid Sans Fallback","Microsoft YaHei";--base-font-family:var(--sys-font-family),var(--zh-font-family),sans-serif;--code-font-family:Menlo,Monaco,Consolas,"Courier New",var(--zh-font-family),monospace;--card-background:#fff;--card-background-selected:#eaeaea;--card-text-color-main:#000;--card-text-color-secondary:#747474;--card-text-color-tertiary:#767676;--card-separator-color:#dadada80;--card-border-radius:10px;--card-padding:20px;--small-card-padding:25px 20px}@media (width>=768px){:root{--card-padding:25px}}@media (width>=1280px){:root{--card-padding:30px}}@media (width>=768px){:root{--small-card-padding:25px}}:root[data-scheme=dark]{--card-background:#424242;--card-background-selected:#ffffff29;--card-text-color-main:#ffffffe6;--card-text-color-secondary:#ffffffb3;--card-text-color-tertiary:#ffffff80;--card-separator-color:#ffffff1f}:root{--article-font-family:var(--base-font-family);--article-font-size:1.6rem;--article-line-height:1.85}@media (width>=768px){:root{--article-font-size:1.7rem}}:root{--blockquote-border-size:4px;--blockquote-background-color:#f8f8f8;--heading-border-size:4px;--link-background-color:189,195,199;--link-background-opacity:.5;--link-background-opacity-hover:.7;--pre-background-color:#272822;--pre-text-color:#f8f8f2;--code-background-color:#0000001f;--code-text-color:gray;--shadow-l1:0px 4px 8px #0000000a,0px 0px 2px #0000000f,0px 0px 1px #0000000a;--shadow-l2:0px 10px 20px #0000000a,0px 2px 6px #0000000a,0px 0px 1px #0000000a}[data-scheme=light]{--pre-text-color:#272822;--pre-background-color:#fafafa;--logo-filter:invert(0)}[data-scheme=dark]{--pre-text-color:#f8f8f2;--pre-background-color:#272822;--logo-filter:invert(.8)}:root{--menu-icon-separation:40px;--container-padding:15px;--widget-separation:var(--section-separation)}.container{margin-left:auto;margin-right:auto}.container .left-sidebar{max-width:var(--left-sidebar-max-width);order:-3}.container .right-sidebar{max-width:var(--right-sidebar-max-width);order:-1}@media (width>=1024px){.container .right-sidebar{display:flex}}@media (width>=768px){.container.extended{--left-sidebar-max-width:25%;--right-sidebar-max-width:30%;max-width:1024px}}@media (width>=1024px){.container.extended{--left-sidebar-max-width:20%;--right-sidebar-max-width:30%;max-width:1280px}}@media (width>=1280px){.container.extended{--left-sidebar-max-width:15%;--right-sidebar-max-width:25%;max-width:1536px}}.flex{flex-direction:row;display:flex}.flex.on-phone--column{flex-direction:column}@media (width>=768px){.flex.on-phone--column{flex-direction:unset}}.flex .full-width{width:100%}main.main{gap:var(--section-separation);flex-direction:column;flex-grow:1;order:-2;min-width:0;max-width:100%;display:flex}@media (width>=768px){main.main{padding-top:var(--main-top-padding)}}.main-container{align-items:flex-start;gap:var(--section-separation);min-height:100vh;padding:0 15px;padding-top:var(--main-top-padding)}@media (width>=768px){.main-container{padding:0 20px}}.hamburger{cursor:pointer;font:inherit;color:inherit;text-transform:none;background-color:#0000;border:0;margin:0;padding-top:10px;transition-property:opacity,filter;transition-duration:.15s;transition-timing-function:linear;display:inline-block;overflow:visible}.hamburger:hover,.hamburger.is-active:hover{opacity:.7}.hamburger.is-active .hamburger-inner,.hamburger.is-active .hamburger-inner:before,.hamburger.is-active .hamburger-inner:after{background-color:#000}.hamburger-box{width:30px;height:24px;display:inline-block;position:relative}.hamburger-inner{margin-top:-2px;display:block;top:50%}.hamburger-inner,.hamburger-inner:before,.hamburger-inner:after{background-color:var(--card-text-color-main);border-radius:4px;width:30px;height:2px;transition-property:transform;transition-duration:.15s;transition-timing-function:ease;position:absolute}.hamburger-inner:before,.hamburger-inner:after{content:"";display:block}.hamburger-inner:before{top:-10px}.hamburger-inner:after{bottom:-10px}.hamburger--spin .hamburger-inner{transition-duration:.22s;transition-timing-function:cubic-bezier(.55,.055,.675,.19)}.hamburger--spin .hamburger-inner:before{transition:top .1s ease-in .25s,opacity .1s ease-in}.hamburger--spin .hamburger-inner:after{transition:bottom .1s ease-in .25s,transform .22s cubic-bezier(.55,.055,.675,.19)}.hamburger--spin.is-active .hamburger-inner{transition-delay:.12s;transition-timing-function:cubic-bezier(.215,.61,.355,1);transform:rotate(225deg)}.hamburger--spin.is-active .hamburger-inner:before{opacity:0;transition:top .1s ease-out,opacity .1s ease-out .12s;top:0}.hamburger--spin.is-active .hamburger-inner:after{transition:bottom .1s ease-out,transform .22s cubic-bezier(.215,.61,.355,1) .12s;bottom:0;transform:rotate(-90deg)}#toggle-menu{z-index:2;cursor:pointer;background:0 0;border:none;outline:none;position:absolute;top:0;right:0}@media (width>=768px){#toggle-menu{display:none}}#toggle-menu.is-active .hamburger-inner,#toggle-menu.is-active .hamburger-inner:before,#toggle-menu.is-active .hamburger-inner:after{background-color:var(--accent-color)}#main-menu{background-color:var(--card-background);box-shadow:var(--shadow-l1);margin:0 calc(var(--container-padding)*-1);flex-grow:1;padding:30px;font-size:1.4rem;list-style:none;display:none;overflow-y:auto}@media (width>=1280px){#main-menu{padding:15px 0}}#main-menu,#main-menu .menu-bottom-section ol{flex-direction:column;gap:30px}@media (width>=1280px){#main-menu,#main-menu .menu-bottom-section ol{gap:25px}}#main-menu.show{display:flex}@media (width>=768px){#main-menu{box-shadow:none;background-color:#0000;align-items:flex-end;margin:0;padding:0;display:flex}}#main-menu li{vertical-align:middle;padding:0;position:relative}@media (width>=768px){#main-menu li{width:100%}}#main-menu li svg{stroke:currentColor;stroke-width:1.33px;width:20px;height:20px}#main-menu li a{height:100%;color:var(--body-text-color);align-items:center;gap:var(--menu-icon-separation);display:inline-flex}#main-menu li span{flex:1}#main-menu li.current a{color:var(--accent-color);font-weight:700}#main-menu li.menu-bottom-section{margin-top:auto}#main-menu li.menu-bottom-section ol{padding-left:0;display:flex}.menu-social{flex-direction:row;gap:10px;margin:0;padding:0;list-style:none;display:flex}.menu-social svg{width:24px;height:24px;stroke:var(--body-text-color);stroke-width:1.33px}.article-list{gap:var(--section-separation);flex-direction:column;display:flex}.article-list article{background-color:var(--card-background);box-shadow:var(--shadow-l1);border-radius:var(--card-border-radius);flex-direction:column;transition:box-shadow .3s;display:flex;overflow:hidden}.article-list article:hover{box-shadow:var(--shadow-l2)}.article-list article .article-image img{object-fit:cover;width:100%;height:150px}@media (width>=768px){.article-list article .article-image img{height:200px}}@media (width>=1280px){.article-list article .article-image img{height:250px}}.article-list article:nth-child(5n+1) .article-category a{color:#fff;background:#8ea885}.article-list article:nth-child(5n+2) .article-category a{color:#fff;background:#df7988}.article-list article:nth-child(5n+3) .article-category a{color:#fff;background:#0177b8}.article-list article:nth-child(5n+4) .article-category a{color:#fff;background:#ffb900}.article-list article:nth-child(5n+5) .article-category a{color:#fff;background:#6b69d6}.article-details{padding:var(--card-padding);flex-direction:column;justify-content:center;gap:15px;display:flex}.article-title{font-family:var(--article-font-family);color:var(--card-text-color-main);margin:0;font-size:2.2rem;font-weight:600}@media (width>=1280px){.article-title{font-size:2.4rem}}.article-title a,.article-title a:hover{color:var(--card-text-color-main)}.article-subtitle{color:var(--card-text-color-secondary);margin:0;font-size:1.75rem;font-weight:400;line-height:1.5}@media (width>=1280px){.article-subtitle{font-size:2rem}}.article-title-wrapper{flex-direction:column;gap:8px;display:flex}.article-time{color:var(--card-text-color-tertiary);gap:15px;display:flex}.article-time svg{vertical-align:middle;stroke-width:1.33px;flex-shrink:0;width:20px;height:20px}.article-time time,.article-time a{color:var(--card-text-color-tertiary);font-size:1.4rem}.article-time>div{align-items:center;gap:15px;display:inline-flex}.article-time{flex-wrap:wrap}.article-category,.article-tags{flex-wrap:wrap;gap:10px;display:flex}.article-category a,.article-tags a{color:var(--accent-color-text);background-color:var(--accent-color);border-radius:var(--tag-border-radius);padding:8px 16px;font-size:1.4rem;transition:background-color .5s;display:inline-block}.article-category a:hover,.article-tags a:hover{color:var(--accent-color-text);background-color:var(--accent-color-darker)}.article-list--compact{border-radius:var(--card-border-radius);box-shadow:var(--shadow-l1);background-color:var(--card-background);--image-size:50px}@media (width>=768px){.article-list--compact{--image-size:60px}}.article-list--compact article>a{padding:var(--small-card-padding);align-items:center;gap:15px;display:flex}.article-list--compact article:not(:last-of-type){border-bottom:1.5px solid var(--card-separator-color)}.article-list--compact article .article-details{min-height:var(--image-size);flex-grow:1;gap:10px;padding:0}.article-list--compact article .article-title{margin:0;font-size:1.6rem}@media (width>=768px){.article-list--compact article .article-title{font-size:1.8rem}}.article-list--compact article .article-image img{width:var(--image-size);height:var(--image-size);object-fit:cover}.article-list--compact article .article-time{font-size:1.4rem}.article-list--tile article{border-radius:var(--card-border-radius);width:250px;height:350px;box-shadow:var(--shadow-l1);background-color:var(--card-background);transition:box-shadow .3s;position:relative;overflow:hidden}.article-list--tile article:hover{box-shadow:var(--shadow-l2)}.article-list--tile article.has-image .article-details{background-color:#00000040}.article-list--tile article.has-image .article-title{color:#fff}.article-list--tile article .article-image{width:100%;height:100%;position:absolute;top:0;left:0}.article-list--tile article .article-image img{object-fit:cover;width:100%;height:100%}.article-list--tile article .article-details{border-radius:var(--card-border-radius);z-index:2;flex-direction:column;justify-content:flex-end;width:100%;height:100%;padding:15px;display:flex;position:relative}@media (width>=640px){.article-list--tile article .article-details{padding:20px}}.article-list--tile article .article-title{color:var(--card-text-color-main);font-size:2rem;font-weight:500}@media (width>=640px){.article-list--tile article .article-title{font-size:2.2rem}}.widget{flex-direction:column;display:flex}.widget .widget-icon svg{stroke-width:1.6px;width:32px;height:32px;color:var(--body-text-color)}.tagCloud .tagCloud-tags{flex-wrap:wrap;gap:10px;display:flex}.tagCloud .tagCloud-tags a{background:var(--card-background);box-shadow:var(--shadow-l1);border-radius:var(--tag-border-radius);color:var(--card-text-color-main);padding:8px 20px;font-size:1.4rem;transition:box-shadow .3s}.tagCloud .tagCloud-tags a:hover{box-shadow:var(--shadow-l2)}.widget.archives .widget-archive--list{border-radius:var(--card-border-radius);box-shadow:var(--shadow-l1);background-color:var(--card-background)}.widget.archives .archives-year:not(:last-of-type){border-bottom:1.5px solid var(--card-separator-color)}.widget.archives .archives-year a{padding:18px 25px;font-size:1.4rem;display:flex}.widget.archives .archives-year a span.year{color:var(--card-text-color-main);flex:1;font-weight:700}.widget.archives .archives-year a span.count{color:var(--card-text-color-tertiary)}footer.site-footer{padding:20px 0 var(--section-separation)0;font-size:1.4rem;line-height:1.75}footer.site-footer:before{content:"";background:var(--body-text-color);width:50px;height:3px;margin-bottom:20px;display:block}footer.site-footer .copyright{color:var(--accent-color);margin-bottom:5px;font-weight:700}footer.site-footer .powerby{color:var(--body-text-color);font-size:1.2rem;font-weight:400}footer.site-footer .powerby a{color:var(--body-text-color)}.pagination{background-color:var(--card-background);box-shadow:var(--shadow-l1);border-radius:var(--card-border-radius);flex-wrap:wrap;display:flex;overflow:hidden}.pagination .page-link{color:var(--card-text-color-secondary);padding:16px 32px;display:inline-flex}.pagination .page-link.current{background-color:var(--card-background-selected);color:var(--card-text-color-main);font-weight:700}@media (width>=768px){.sidebar.sticky{position:sticky}}.left-sidebar{align-self:stretch;gap:var(--sidebar-element-separation);--sidebar-avatar-size:100px;--sidebar-element-separation:20px;--emoji-size:40px;--emoji-font-size:20px;flex-direction:column;flex-shrink:0;width:100%;max-width:none;display:flex;position:relative}@media (width>=768px){.left-sidebar{width:auto;padding-top:var(--main-top-padding);padding-bottom:var(--main-top-padding);max-height:100vh}}@media (width>=1536px){.left-sidebar{--sidebar-avatar-size:120px;--sidebar-element-separation:25px;--emoji-size:40px}}.left-sidebar.sticky{top:0}.right-sidebar{gap:var(--widget-separation);flex-direction:column;width:100%;display:none}.right-sidebar.sticky{top:0}@media (width>=1024px){.right-sidebar{padding-top:var(--main-top-padding);padding-bottom:var(--main-top-padding)}}.sidebar header{z-index:1;gap:var(--sidebar-element-separation);flex-direction:column;transition:box-shadow .5s;display:flex}@media (width>=768px){.sidebar header{padding:0}}.sidebar header .site-avatar{width:var(--sidebar-avatar-size);height:var(--sidebar-avatar-size);flex-shrink:0;margin:0;position:relative}.sidebar header .site-avatar .site-logo{width:100%;height:100%;box-shadow:var(--shadow-l1);border-radius:100%}.sidebar header .site-avatar .emoji{width:var(--emoji-size);height:var(--emoji-size);line-height:var(--emoji-size);text-align:center;font-size:var(--emoji-font-size);background-color:var(--card-background);box-shadow:var(--shadow-l2);border-radius:100%;position:absolute;bottom:0;right:0}.sidebar header .site-meta{flex-direction:column;justify-content:center;gap:10px;display:flex}.sidebar header .site-name{color:var(--accent-color);margin:0;font-size:1.6rem}@media (width>=1536px){.sidebar header .site-name{font-size:1.8rem}}.sidebar header .site-description{color:var(--body-text-color);margin:0;font-size:1.4rem;font-weight:400}@media (width>=1536px){.sidebar header .site-description{font-size:1.6rem}}[data-scheme=dark] #dark-mode-toggle{color:var(--accent-color);font-weight:700}[data-scheme=dark] #dark-mode-toggle .icon-tabler-toggle-left{display:none}[data-scheme=dark] #dark-mode-toggle .icon-tabler-toggle-right{display:unset}#dark-mode-toggle{color:var(--body-text-color);cursor:pointer;align-items:center;gap:var(--menu-icon-separation);margin-top:auto;display:flex}#dark-mode-toggle .icon-tabler-toggle-right{display:none}html{font-size:62.5%;overflow-y:scroll}*{box-sizing:border-box}body{background:var(--body-background);font-family:var(--base-font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-size:1.6rem}*{scrollbar-width:auto;scrollbar-color:var(--scrollbar-thumb)transparent}::-webkit-scrollbar{height:auto}::-webkit-scrollbar-thumb{background-color:var(--scrollbar-thumb)}::-webkit-scrollbar-track{background-color:#0000}.article-page .main-article{background:var(--card-background);border-radius:var(--card-border-radius);box-shadow:var(--shadow-l1);overflow:hidden}.article-page .main-article .article-header .article-image img{object-fit:cover;width:100%;height:auto;max-height:50vh}.article-page .main-article .article-header .article-details{padding:var(--card-padding);padding-bottom:0}.article-page .main-article .article-content{margin:var(--card-padding)0;color:var(--card-text-color-main)}.article-page .main-article .article-content img{max-width:100%;height:auto}.article-page .main-article .article-footer{margin:var(--card-padding);margin-top:0}.article-page .main-article .article-footer section:not(:first-child){margin-top:var(--card-padding)}.article-page .main-article .article-footer section{color:var(--card-text-color-tertiary);text-transform:uppercase;align-items:center;gap:15px;font-size:1.4rem;display:flex}.article-page .main-article .article-footer section svg{stroke-width:1.33px;width:20px;height:20px}.article-page .main-article .article-footer .article-tags{text-transform:unset}.article-page .main-article .article-footer .article-copyright a{color:var(--body-text-color)}.article-page .main-article .article-footer .article-copyright a.link{box-shadow:unset}.widget--toc{background-color:var(--card-background);border-radius:var(--card-border-radius);box-shadow:var(--shadow-l1);color:var(--card-text-color-main);flex-direction:column;display:flex;overflow:hidden}.widget--toc ::-webkit-scrollbar-thumb{background-color:var(--card-separator-color)}.widget--toc #TableOfContents{max-height:75vh;overflow-x:auto}.widget--toc #TableOfContents ol,.widget--toc #TableOfContents ul{margin:0;padding:0}.widget--toc #TableOfContents ol{counter-reset:item;list-style-type:none}.widget--toc #TableOfContents ol li a:first-of-type:before{counter-increment:item;content:counters(item,".")". ";margin-right:5px;font-weight:700}.widget--toc #TableOfContents>ul{padding:0 1em}.widget--toc #TableOfContents li{margin:15px 0 15px 20px;padding:5px}.widget--toc #TableOfContents li>ol,.widget--toc #TableOfContents li>ul{margin-top:10px;margin-bottom:-5px;padding-left:10px}.widget--toc #TableOfContents li>ol>li:last-child,.widget--toc #TableOfContents li>ul>li:last-child{margin-bottom:0}.related-content{padding-bottom:15px;overflow-x:auto}.related-content>.flex{float:left}.related-content article{flex-shrink:0;width:250px;height:150px;margin-right:15px;overflow:hidden}.related-content article .article-title{margin:0;font-size:1.8rem}.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{border-inline-start:var(--heading-border-size)solid var(--accent-color);margin-inline-start:calc((var(--card-padding))*-1);padding-inline-start:calc(var(--card-padding) - var(--heading-border-size));position:relative}.article-content figure{text-align:center}.article-content blockquote{border-inline-start:var(--blockquote-border-size)solid var(--card-separator-color);padding:15px calc(var(--card-padding) - var(--blockquote-border-size));background-color:var(--blockquote-background-color);margin:1.5em 0;position:relative}.article-content hr{background:var(--card-text-color-tertiary);opacity:.55;border:0;width:100px;height:2px;margin:40px auto}.article-content code{color:var(--code-text-color);background-color:var(--code-background-color);border-radius:var(--tag-border-radius);font-family:var(--code-font-family);padding:2px 4px}.article-content a,.article-content code{word-break:break-word}.article-content pre{background-color:var(--pre-background-color);color:var(--pre-text-color);font-family:var(--code-font-family);word-break:break-all;padding:var(--card-padding);line-height:1.42857;display:block;overflow-x:auto}.article-content pre code{color:unset;background:0 0;border:none;padding:0}.article-content .highlight{background-color:var(--pre-background-color);padding:var(--card-padding);position:relative}.article-content .highlight:hover .copyCodeButton{opacity:1}.article-content .highlight pre{margin:initial;width:auto;margin:0;padding:0}.article-content .copyCodeButton{top:calc(var(--card-padding));right:calc(var(--card-padding));background:var(--card-background);box-shadow:var(--shadow-l2);border-radius:var(--tag-border-radius);color:var(--card-text-color-main);cursor:pointer;opacity:0;border:none;padding:8px 16px;font-size:14px;transition:opacity .3s;position:absolute}.article-content blockquote,.article-content figure,.article-content .highlight,.article-content pre{margin-left:calc((var(--card-padding))*-1);margin-right:calc((var(--card-padding))*-1);width:calc(100% + var(--card-padding)*2)}.section-card{border-radius:var(--card-border-radius);background-color:var(--card-background);padding:var(--small-card-padding);box-shadow:var(--shadow-l1);align-items:center;gap:20px;display:flex}.section-card .section-term{color:var(--card-text-color-main);margin:0;font-size:2.2rem}.section-card .section-details{flex-direction:column;flex-grow:1;gap:8px;display:flex}.section-card .section-count{color:var(--card-text-color-tertiary);text-transform:uppercase;margin:0;font-size:1.4rem;font-weight:700}.subsection-list{overflow-x:auto}.subsection-list .article-list--tile{padding-bottom:15px;display:flex}.subsection-list .article-list--tile article{flex-shrink:0;width:250px;height:150px;margin-right:20px}.subsection-list .article-list--tile article .article-title{margin:0;font-size:1.8rem}.subsection-list .article-list--tile article .article-details{padding:20px}.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{--button-size:80px;position:relative}.search-form.widget{--button-size:60px}.search-form.widget label{font-size:1.3rem;top:10px}.search-form.widget input{padding:30px 20px 15px;font-size:1.5rem}.search-form p{margin:0;position:relative}.search-form label{top:15px;color:var(--card-text-color-tertiary);font-size:1.4rem;position:absolute;inset-inline-start:20px}.search-form input{border-radius:var(--card-border-radius);background-color:var(--card-background);box-shadow:var(--shadow-l1);color:var(--card-text-color-main);-webkit-appearance:none;border:0;width:100%;padding:40px 20px 20px;font-size:1.8rem;transition:box-shadow .3s}.search-form input:focus{box-shadow:var(--shadow-l2);outline:0}.search-form button{inset-inline-end:0;height:100%;width:var(--button-size);cursor:pointer;background-color:#0000;border:0;padding:0 10px;position:absolute;top:0}.search-form button:focus{outline:0}.search-form button:focus svg{stroke-width:2px;color:var(--accent-color)}.search-form button svg{color:var(--card-text-color-secondary);stroke-width:1.33px;width:20px;height:20px;transition:all .3s}a{color:var(--accent-color);text-decoration:none}a:hover{color:var(--accent-color-darker)}a.link{box-shadow:0px -2px 0px rgba(var(--link-background-color),var(--link-background-opacity))inset;transition:all .3s}a.link:hover{box-shadow:0px calc(-1rem*var(--article-line-height))0px rgba(var(--link-background-color),var(--link-background-opacity-hover))inset}.section-title{text-transform:uppercase;color:var(--body-text-color);margin-top:0;margin-bottom:10px;font-size:1.6rem;font-weight:700;display:block}.section-title a{color:var(--body-text-color)}.article-content .highlight:before{content:"";background:url(/imgs/code-header.svg) -1px 2px/57px no-repeat;width:100%;height:32px;margin-bottom:5px;display:block}.site-logo{filter:var(--logo-filter)}