.anchorjs-link{text-decoration:none!important;transition:opacity .2s ease-in-out}.markdown-body h1:hover>.anchorjs-link,h2:hover>.anchorjs-link,h3:hover>.anchorjs-link,h4:hover>.anchorjs-link,h5:hover>.anchorjs-link,h6:hover>.anchorjs-link{opacity:1}.banner{height:100%;position:relative;overflow:hidden;cursor:default}.banner .mask{position:absolute;width:100%;height:100%;background-color:rgba(0,0,0,.3)}.banner[parallax=true]{will-change:transform;-webkit-transform-style:preserve-3d;-webkit-backface-visibility:hidden;transition:transform 50ms ease-out}#board{position:relative;margin-top:-2rem;padding:3rem 0;background-color:var(--board-bg-color);transition:background-color .2s ease-in-out;border-radius:.5rem;z-index:3;-webkit-box-shadow:0 12px 15px 0 rgba(0,0,0,.24),0 17px 50px 0 rgba(0,0,0,.19);box-shadow:0 12px 15px 0 rgba(0,0,0,.24),0 17px 50px 0 rgba(0,0,0,.19)}.code-widget{display:inline-block;background-color:transparent;font-size:.75rem;line-height:1;font-weight:700;padding:.3rem .1rem .1rem .1rem;position:absolute;right:.45rem;top:.15rem;z-index:1}.code-widget-light{color:#999}.code-widget-dark{color:#bababa}.copy-btn{cursor:pointer;user-select:none;-webkit-appearance:none;outline:0}.copy-btn>i{font-size:.75rem!important;font-weight:400;margin-right:.15rem;opacity:0;transition:opacity .2s ease-in-out}.markdown-body pre:hover>.copy-btn>i{opacity:.9}.markdown-body pre:hover>.copy-btn,.markdown-body pre:not(:hover)>.copy-btn{outline:0}.license-box{background-color:rgba(27,31,35,.05);transition:background-color .2s ease-in-out;border-radius:4px;font-size:.9rem;overflow:hidden;padding:1.25rem;position:relative;z-index:1}.license-box .license-icon{position:absolute;top:50%;left:100%}.license-box .license-icon::after{content:"\e8e4";font-size:12.5rem;line-height:1;opacity:.1;position:relative;left:-.85em;bottom:.5em;z-index:-1}.license-box .license-title{margin-bottom:1rem}.license-box .license-title div:nth-child(1){line-height:1.2;margin-bottom:.25rem}.license-box .license-title div:nth-child(2){color:var(--sec-text-color);font-size:.8rem}.license-box .license-meta{align-items:center;display:flex;flex-wrap:wrap;justify-content:flex-start}.license-box .license-meta .license-meta-item{align-items:center;justify-content:center;margin-right:1.5rem}.license-box .license-meta .license-meta-item div:nth-child(1){color:var(--sec-text-color);font-size:.8rem;font-weight:400}.license-box .license-meta .license-meta-item i.iconfont{font-size:1rem}@media (max-width:575px) and (min-width:425px){.license-box .license-meta .license-meta-item{display:flex;justify-content:flex-start;flex-wrap:wrap;font-size:.8rem;flex:0 0 50%;max-width:50%;margin-right:0}.license-box .license-meta .license-meta-item div:nth-child(1){margin-right:.5rem}.license-box .license-meta .license-meta-date{order:-1}}@media (max-width:424px){.license-box::after{top:-65px}.license-box .license-meta{flex-direction:column;align-items:flex-start}.license-box .license-meta .license-meta-item{display:flex;flex-wrap:wrap;font-size:.8rem}.license-box .license-meta .license-meta-item div:nth-child(1){margin-right:.5rem}}.footer-inner{padding:3rem 0 1rem 0;text-align:center}.footer-inner>div:not(:first-child){margin:.25rem 0;font-size:.85rem}.footer-inner .statistics{display:flex;flex-direction:row;justify-content:center}.footer-inner .statistics>span{flex:1;margin:0 .25rem}.footer-inner .statistics>:nth-last-child(2):first-child{text-align:right}.footer-inner .statistics>:nth-last-child(2):first-child~*{text-align:left}.footer-inner .beian{display:flex;flex-direction:row;justify-content:center}.footer-inner .beian>*{margin:0 .25rem}.footer-inner .beian-police{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:left}.footer-inner .beian-police img{margin-right:3px;width:1rem;height:1rem;margin-bottom:.1rem}@media (max-width:424px){.footer-inner .statistics{flex-direction:column}.footer-inner .statistics>:nth-last-child(2):first-child{text-align:center}.footer-inner .statistics>:nth-last-child(2):first-child~*{text-align:center}.footer-inner .beian{flex-direction:column}.footer-inner .beian .beian-police{justify-content:center}.footer-inner .beian>:nth-last-child(2):first-child{text-align:center}.footer-inner .beian>:nth-last-child(2):first-child~*{text-align:center}}.footnote-text::before,sup>a::before{display:block;content:"";margin-top:-5rem;height:5rem;width:1px;visibility:hidden}.footnote-text::before,sup>a::before{display:inline-block}.footnote-item::before{display:block;content:"";margin-top:-5rem;height:5rem;width:1px;visibility:hidden}.footnote-list ol{list-style-type:none;counter-reset:sectioncounter;padding-left:.5rem;font-size:.95rem}.footnote-list ol li:before{font-family:"Helvetica Neue",monospace,Monaco;content:"[" counter(sectioncounter) "]";counter-increment:sectioncounter}.footnote-list ol li+li{margin-top:.5rem}.footnote-text{padding-left:.5em}.navbar{background-color:transparent;font-size:.875rem;box-shadow:0 2px 5px 0 rgba(0,0,0,.16),0 2px 10px 0 rgba(0,0,0,.12);-webkit-box-shadow:0 2px 5px 0 rgba(0,0,0,.16),0 2px 10px 0 rgba(0,0,0,.12)}.navbar .navbar-brand{color:var(--navbar-text-color)}.navbar .navbar-toggler .animated-icon span{background-color:var(--navbar-text-color)}.navbar .nav-item .nav-link{display:block;color:var(--navbar-text-color);transition:color .2s ease-in-out,background-color .2s ease-in-out}.navbar .nav-item .nav-link:hover{color:var(--link-hover-color)}.navbar .nav-item .nav-link:focus{color:var(--navbar-text-color)}.navbar .nav-item .nav-link i{font-size:.875rem;line-height:inherit}.navbar .nav-item .nav-link i:only-child{margin:0 .2rem}.navbar .navbar-toggler{border-width:0;outline:0}.navbar.scrolling-navbar{will-change:background,padding;-webkit-transition:background .5s ease-in-out,padding .5s ease-in-out;transition:background .5s ease-in-out,padding .5s ease-in-out}@media (min-width:600px){.navbar.scrolling-navbar{padding-top:12px;padding-bottom:12px}.navbar.scrolling-navbar .navbar-nav>li{-webkit-transition-duration:1s;transition-duration:1s}}.navbar.scrolling-navbar.top-nav-collapse{padding-top:5px;padding-bottom:5px}.navbar .dropdown-menu{font-size:.875rem;color:var(--navbar-text-color);background-color:rgba(0,0,0,.3);border:none;min-width:8rem;-webkit-transition:background .5s ease-in-out,padding .5s ease-in-out;transition:background .5s ease-in-out,padding .5s ease-in-out}@media (max-width:991.98px){.navbar .dropdown-menu{text-align:center}}.navbar .dropdown-item{color:var(--navbar-text-color)}.navbar .dropdown-item:focus,.navbar .dropdown-item:hover{color:var(--link-hover-color);background-color:rgba(0,0,0,.1)}@media (min-width:992px){.navbar .dropdown:hover>.dropdown-menu{display:block}.navbar .dropdown>.dropdown-toggle:active{pointer-events:none}.navbar .dropdown-menu{top:95%}}.navbar .animated-icon{width:30px;height:20px;position:relative;margin:0;-webkit-transform:rotate(0);-moz-transform:rotate(0);-o-transform:rotate(0);transform:rotate(0);-webkit-transition:.5s ease-in-out;-moz-transition:.5s ease-in-out;-o-transition:.5s ease-in-out;transition:.5s ease-in-out;cursor:pointer}.navbar .animated-icon span{display:block;position:absolute;height:3px;width:100%;border-radius:9px;opacity:1;left:0;-webkit-transform:rotate(0);-moz-transform:rotate(0);-o-transform:rotate(0);transform:rotate(0);-webkit-transition:.25s ease-in-out;-moz-transition:.25s ease-in-out;-o-transition:.25s ease-in-out;transition:.25s ease-in-out;background:#fff}.navbar .animated-icon span:nth-child(1){top:0}.navbar .animated-icon span:nth-child(2){top:10px}.navbar .animated-icon span:nth-child(3){top:20px}.navbar .animated-icon.open span:nth-child(1){top:11px;-webkit-transform:rotate(135deg);-moz-transform:rotate(135deg);-o-transform:rotate(135deg);transform:rotate(135deg)}.navbar .animated-icon.open span:nth-child(2){opacity:0;left:-60px}.navbar .animated-icon.open span:nth-child(3){top:11px;-webkit-transform:rotate(-135deg);-moz-transform:rotate(-135deg);-o-transform:rotate(-135deg);transform:rotate(-135deg)}@media (max-width:767px){.navbar{font-size:1rem;line-height:2.5rem}}.banner-text{color:var(--subtitle-color);max-width:calc(960px - 6rem);width:80%;overflow-wrap:break-word}.banner-text .typed-cursor{margin:0 .2rem}@media (max-width:767px){#subtitle,.typed-cursor{font-size:1.5rem}}@media (max-width:575px){.banner-text{font-size:.9rem}#subtitle,.typed-cursor{font-size:1.35rem}}.modal-dialog .modal-content{background-color:var(--board-bg-color);border:0;border-radius:.125rem;-webkit-box-shadow:0 5px 11px 0 rgba(0,0,0,.18),0 4px 15px 0 rgba(0,0,0,.15);box-shadow:0 5px 11px 0 rgba(0,0,0,.18),0 4px 15px 0 rgba(0,0,0,.15)}.modal-dialog .modal-content .modal-header{border-bottom-color:var(--line-color);transition:border-bottom-color .2s ease-in-out}.close{color:var(--text-color)}.close:hover{color:var(--link-hover-color)}.close:focus{outline:0}.modal-dialog .modal-content .modal-header{border-top-left-radius:.125rem;border-top-right-radius:.125rem;border-bottom:1px solid #dee2e6}.md-form{position:relative;margin-top:1.5rem;margin-bottom:1.5rem}.md-form input[type]{-webkit-box-sizing:content-box;box-sizing:content-box;background-color:transparent;border:none;border-bottom:1px solid #ced4da;border-radius:0;outline:0;-webkit-box-shadow:none;box-shadow:none;transition:border-color .15s ease-in-out,box-shadow .15s ease-in-out,-webkit-box-shadow .15s ease-in-out}.md-form input[type]:focus:not([readonly]){border-bottom:1px solid #4285f4;-webkit-box-shadow:0 1px 0 0 #4285f4;box-shadow:0 1px 0 0 #4285f4}.md-form input[type]:focus:not([readonly])+label{color:#4285f4}.md-form input[type].valid,.md-form input[type]:focus.valid{border-bottom:1px solid #00c851;-webkit-box-shadow:0 1px 0 0 #00c851;box-shadow:0 1px 0 0 #00c851}.md-form input[type].valid+label,.md-form input[type]:focus.valid+label{color:#00c851}.md-form input[type].invalid,.md-form input[type]:focus.invalid{border-bottom:1px solid #f44336;-webkit-box-shadow:0 1px 0 0 #f44336;box-shadow:0 1px 0 0 #f44336}.md-form input[type].invalid+label,.md-form input[type]:focus.invalid+label{color:#f44336}.md-form input[type].validate{margin-bottom:2.5rem}.md-form input[type].form-control{height:auto;padding:.6rem 0 .4rem 0;margin:0 0 .5rem 0;color:var(--text-color);background-color:transparent;border-radius:0}.md-form label{font-size:.8rem;position:absolute;top:-1rem;left:0;color:#757575;cursor:text;transition:color .2s ease-out}.modal-open[style]{padding-right:0!important;overflow:auto}.modal-open[style] #navbar[style]{padding-right:1rem!important}#nprogress .bar{height:3px!important;background-color:#29d!important}#nprogress .peg{box-shadow:0 0 14px #29d,0 0 8px #29d!important}@media (max-width:575px){#nprogress .bar{display:none}}.noscript-warning{background-color:#f55;color:#fff;font-family:sans-serif;font-size:1rem;font-weight:700;position:fixed;left:0;bottom:0;text-align:center;width:100%;z-index:99}.pagination{margin-top:3rem;justify-content:center}.pagination .space{align-self:flex-end}.pagination .current,.pagination .extend,.pagination .page-number{outline:0;border:0;background-color:transparent;font-size:.9rem;padding:.5rem .75rem;line-height:1.25;border-radius:.125rem}.pagination .page-number{margin:0 .05rem}.pagination .current,.pagination .page-number:hover{transition:background-color .2s ease-in-out;background-color:var(--link-hover-bg-color)}.qr-trigger{cursor:pointer;position:relative}.qr-trigger:hover .qr-img{display:block;transition:all .3s}.qr-img{max-width:12rem;position:absolute;right:-5.25rem;z-index:99;display:none;border-radius:.2rem;background-color:transparent;box-shadow:0 0 20px -5px rgba(158,158,158,.2)}.scroll-down-bar{position:absolute;width:100%;height:6rem;text-align:center;cursor:pointer;bottom:0}.scroll-down-bar i.iconfont{font-size:2rem;font-weight:700;display:inline-block;position:relative;padding-top:2rem;color:var(--subtitle-color);transform:translateZ(0);animation:scroll-down 1.5s infinite}#scroll-top-button{position:fixed;z-index:99;background:var(--board-bg-color);transition:background-color .2s ease-in-out,bottom .3s ease;border-radius:4px;min-width:40px;min-height:40px;bottom:-60px;outline:0;display:flex;display:-webkit-flex;align-items:center;box-shadow:0 2px 5px 0 rgba(0,0,0,.16),0 2px 10px 0 rgba(0,0,0,.12)}#scroll-top-button i{font-size:32px;margin:auto;color:var(--sec-text-color)}#scroll-top-button:active i,#scroll-top-button:hover i{animation-name:scroll-top;animation-duration:1s;animation-delay:.1s;animation-timing-function:ease-in-out;animation-iteration-count:infinite;animation-fill-mode:forwards;animation-direction:alternate}#local-search-result .search-list-title{border-left:3px solid #0d47a1}#local-search-result .search-list-content{padding:0 1.25rem}#local-search-result .search-word{color:#ff4500}#toc{visibility:hidden}.toc-header{margin-bottom:.5rem;font-weight:700;line-height:1.2}.toc-header,.toc-header>i{font-size:1.25rem}.toc-body{max-height:75vh;overflow-y:auto;overflow:-moz-scrollbars-none;-ms-overflow-style:none}.toc-body ol{list-style:none;padding-inline-start:1rem}.toc-body::-webkit-scrollbar{display:none}.tocbot-list{position:relative}.tocbot-list ol{list-style:none;padding-left:1rem}.tocbot-list a{font-size:.95rem}.tocbot-link{color:var(--text-color)}.tocbot-active-link{font-weight:700;color:var(--link-hover-color)}.tocbot-is-collapsed{max-height:0}.tocbot-is-collapsible{overflow:hidden;transition:all .3s ease-in-out}.toc-list-item{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toc-list-item.is-active-li::before{height:1rem;margin:.25rem 0;visibility:visible}.toc-list-item::before{width:.15rem;height:.2rem;position:absolute;left:.25rem;content:"";border-radius:2px;margin:.65rem 0;background:var(--link-hover-color);visibility:hidden;transition:height .1s ease-in-out,margin .1s ease-in-out,visibility .1s ease-in-out}.sidebar{position:-webkit-sticky;position:sticky;top:2rem;padding:3rem 0}html{font-size:var(--font-size);letter-spacing:var(--letter-spacing)}body,html{height:100%;font-family:var(--font-family);overflow-wrap:break-word}body{transition:color .2s ease-in-out,background-color .2s ease-in-out;background-color:var(--body-bg-color);color:var(--text-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body a{color:var(--text-color);text-decoration:none;cursor:pointer;transition:color .2s ease-in-out,background-color .2s ease-in-out}body a:hover{color:var(--link-hover-color);text-decoration:none;transition:color .2s ease-in-out,background-color .2s ease-in-out}code{color:inherit}table{font-size:inherit;color:var(--post-text-color)}img[lazyload]{object-fit:cover}[align=left]{text-align:left}[align=center]{text-align:center}[align=right]{text-align:right}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-thumb{background-color:var(--scrollbar-color);border-radius:6px}::-webkit-scrollbar-thumb:hover{background-color:var(--scrollbar-hover-color)}::-webkit-scrollbar-corner{background-color:transparent}label{margin-bottom:0}i.iconfont{font-size:1em;line-height:1}:root{--color-mode:"light";--highlight-bg-color:#f6f8fa;--inlinecode-bg-color:rgba(175,184,193,0.2);--fold-title-color:var(--text-color);--fold-border-color:var(--line-color)}@media (prefers-color-scheme:dark){:root{--color-mode:"dark"}:root:not([data-color-scheme]){--body-bg-color:var(--body-bg-color-dark);--board-bg-color:var(--board-bg-color-dark);--text-color:var(--text-color-dark);--sec-text-color:var(--sec-text-color-dark);--post-text-color:var(--post-text-color-dark);--post-heading-color:var(--post-heading-color-dark);--post-link-color:var(--post-link-color-dark);--link-hover-color:var(--link-hover-color-dark);--link-hover-bg-color:var(--link-hover-bg-color-dark);--line-color:var(--line-color-dark);--navbar-bg-color:var(--navbar-bg-color-dark);--navbar-text-color:var(--navbar-text-color-dark);--subtitle-color:var(--subtitle-color-dark);--scrollbar-color:var(--scrollbar-color-dark);--scrollbar-hover-color:var(--scrollbar-hover-color-dark);--button-bg-color:var(--button-bg-color-dark);--button-hover-bg-color:var(--button-hover-bg-color-dark);--highlight-bg-color:#303030;--inlinecode-bg-color:rgba(99,110,123,0.4);--fold-title-color:var(--text-color-dark);--fold-border-color:var(--line-color-dark)}:root:not([data-color-scheme]) img{-webkit-filter:brightness(.9);filter:brightness(.9);transition:filter .2s ease-in-out}:root:not([data-color-scheme]) .license-box{background-color:rgba(62,75,94,.35);transition:background-color .2s ease-in-out}:root:not([data-color-scheme]) .gt-comment-admin .gt-comment-content{background-color:transparent;transition:background-color .2s ease-in-out}}@media not print{[data-color-scheme=dark]{--body-bg-color:var(--body-bg-color-dark);--board-bg-color:var(--board-bg-color-dark);--text-color:var(--text-color-dark);--sec-text-color:var(--sec-text-color-dark);--post-text-color:var(--post-text-color-dark);--post-heading-color:var(--post-heading-color-dark);--post-link-color:var(--post-link-color-dark);--link-hover-color:var(--link-hover-color-dark);--link-hover-bg-color:var(--link-hover-bg-color-dark);--line-color:var(--line-color-dark);--navbar-bg-color:var(--navbar-bg-color-dark);--navbar-text-color:var(--navbar-text-color-dark);--subtitle-color:var(--subtitle-color-dark);--scrollbar-color:var(--scrollbar-color-dark);--scrollbar-hover-color:var(--scrollbar-hover-color-dark);--button-bg-color:var(--button-bg-color-dark);--button-hover-bg-color:var(--button-hover-bg-color-dark);--highlight-bg-color:#303030;--inlinecode-bg-color:rgba(99,110,123,0.4);--fold-title-color:var(--text-color-dark);--fold-border-color:var(--line-color-dark)}[data-color-scheme=dark] img{-webkit-filter:brightness(.9);filter:brightness(.9);transition:filter .2s ease-in-out}[data-color-scheme=dark] .license-box{background-color:rgba(62,75,94,.35);transition:background-color .2s ease-in-out}[data-color-scheme=dark] .gt-comment-admin .gt-comment-content{background-color:transparent;transition:background-color .2s ease-in-out}}@media print{:root{--color-mode:"light"}}.fade-in-up{-webkit-animation-name:fade-in-up;animation-name:fade-in-up}.hidden-mobile{display:block}.visible-mobile{display:none}@media (max-width:575px){.hidden-mobile{display:none}.visible-mobile{display:block}}.nomargin-x{margin-left:0!important;margin-right:0!important}.nopadding-x{padding-left:0!important;padding-right:0!important}@media (max-width:767px){.nopadding-x-md{padding-left:0!important;padding-right:0!important}}.flex-center{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;height:100%}.hover-with-bg{display:inline-block;line-height:1}.hover-with-bg:hover{background-color:var(--link-hover-bg-color);transition-duration:.2s;transition-timing-function:ease-in-out;border-radius:.2rem}@-moz-keyframes fade-in-up{from{opacity:0;-webkit-transform:translate3d(0,100%,0);transform:translate3d(0,100%,0)}to{opacity:1;-webkit-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}}@-webkit-keyframes fade-in-up{from{opacity:0;-webkit-transform:translate3d(0,100%,0);transform:translate3d(0,100%,0)}to{opacity:1;-webkit-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}}@-o-keyframes fade-in-up{from{opacity:0;-webkit-transform:translate3d(0,100%,0);transform:translate3d(0,100%,0)}to{opacity:1;-webkit-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}}@keyframes fade-in-up{from{opacity:0;-webkit-transform:translate3d(0,100%,0);transform:translate3d(0,100%,0)}to{opacity:1;-webkit-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}}@-moz-keyframes scroll-down{0%{opacity:.8;top:0}50%{opacity:.4;top:-1em}100%{opacity:.8;top:0}}@-webkit-keyframes scroll-down{0%{opacity:.8;top:0}50%{opacity:.4;top:-1em}100%{opacity:.8;top:0}}@-o-keyframes scroll-down{0%{opacity:.8;top:0}50%{opacity:.4;top:-1em}100%{opacity:.8;top:0}}@keyframes scroll-down{0%{opacity:.8;top:0}50%{opacity:.4;top:-1em}100%{opacity:.8;top:0}}@-moz-keyframes scroll-top{0%{-webkit-transform:translateY(0);transform:translateY(0)}50%{-webkit-transform:translateY(-.35rem);transform:translateY(-.35rem)}100%{-webkit-transform:translateY(0);transform:translateY(0)}}@-webkit-keyframes scroll-top{0%{-webkit-transform:translateY(0);transform:translateY(0)}50%{-webkit-transform:translateY(-.35rem);transform:translateY(-.35rem)}100%{-webkit-transform:translateY(0);transform:translateY(0)}}@-o-keyframes scroll-top{0%{-webkit-transform:translateY(0);transform:translateY(0)}50%{-webkit-transform:translateY(-.35rem);transform:translateY(-.35rem)}100%{-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes scroll-top{0%{-webkit-transform:translateY(0);transform:translateY(0)}50%{-webkit-transform:translateY(-.35rem);transform:translateY(-.35rem)}100%{-webkit-transform:translateY(0);transform:translateY(0)}}@media print{#comments,#scroll-top-button,.post-prevnext,.side-col,footer,header{display:none!important}.markdown-body a:not([href^='#']):not([href^='javascript:']):not(.print-no-link)::after{content:' (' attr(href) ')';font-size:.8rem;color:var(--post-text-color);opacity:.8}.markdown-body h2,.markdown-body>h1{border-bottom-color:transparent!important}.markdown-body h2,.markdown-body h3,.markdown-body h4,.markdown-body h5,.markdown-body h6,.markdown-body>h1{margin-top:1.25em!important;margin-bottom:.25em!important}.markdown-body [data-anchorjs-icon]::after{display:none}.markdown-body figure.highlight table,.markdown-body figure.highlight tbody,.markdown-body figure.highlight td.code,.markdown-body figure.highlight td.code pre,.markdown-body figure.highlight tr{width:100%!important;display:block!important}.markdown-body figure.highlight pre>code{white-space:pre-wrap}.markdown-body figure.highlight .code-widget,.markdown-body figure.highlight .gutter{display:none!important}.post-metas a{text-decoration:none}}@media not print{#seo-header{display:none}}.index-card{margin-bottom:2.5rem}.index-img img{display:block;width:100%;height:10rem;object-fit:cover;box-shadow:0 5px 11px 0 rgba(0,0,0,.18),0 4px 15px 0 rgba(0,0,0,.15);border-radius:.25rem;background-color:transparent}.index-info{display:flex;flex-direction:column;justify-content:space-between;padding-top:.5rem;padding-bottom:.5rem}.index-header{color:var(--text-color);font-size:1.5rem;font-weight:700;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:.25rem}.index-header .index-pin{color:var(--text-color);font-size:1.5rem;margin-right:.15rem}.index-btm{color:var(--sec-text-color)}.index-btm a{color:var(--sec-text-color)}.index-excerpt{color:var(--sec-text-color);margin:.5rem 0;height:calc(1.4rem * 3);overflow:hidden;display:flex}.index-excerpt>div{width:100%;line-height:1.4rem;word-break:break-word;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3}.index-excerpt__noimg{height:auto;max-height:calc(1.4rem * 3)}@media (max-width:767px){.index-info{padding-top:1.25rem}.index-header{font-size:1.25rem;white-space:normal;overflow:hidden;word-break:break-word;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2}.index-header .index-pin{font-size:1.25rem}.index-excerpt{height:auto;max-height:calc(1.4rem * 3);margin:.25rem 0}}#valine.v[data-class=v] .status-bar,#valine.v[data-class=v] .vbtn,#valine.v[data-class=v] .veditor,#valine.v[data-class=v] .vinput,#valine.v[data-class=v] p,#valine.v[data-class=v] pre code{color:var(--text-color)}#valine.v[data-class=v] .vinput::placeholder{color:var(--sec-text-color)}#valine.v[data-class=v] .vicon{fill:var(--text-color)}.gt-container .gt-comment-content:hover{-webkit-box-shadow:none;box-shadow:none}.gt-container .gt-comment-body{color:var(--text-color)!important;transition:color .2s ease-in-out}#remark-km423lmfdslkm34-back{z-index:1030}#remark-km423lmfdslkm34-node{z-index:1031}.markdown-body .highlight pre,.markdown-body pre{padding:1.45rem 1rem}.markdown-body pre code.hljs{padding:0}.markdown-body pre[class*=language-]{padding-top:1.45rem;padding-bottom:1.45rem;padding-right:1rem;line-height:1.5;margin-bottom:1rem}.markdown-body .code-wrapper{position:relative;border-radius:4px;margin-bottom:1rem}.markdown-body .code-wrapper pre,.markdown-body .highlight pre,.markdown-body .hljs,.markdown-body figure.highlight td.gutter{transition:color .2s ease-in-out,background-color .2s ease-in-out;background-color:var(--highlight-bg-color)}pre[class*=language-].line-numbers{position:initial}figure{margin:1rem 0}figure.highlight{position:relative}figure.highlight table{border:0;margin:0;width:auto;border-radius:4px}figure.highlight td{border:0;padding:0}figure.highlight tr{border:0}figure.highlight td.code{width:100%}figure.highlight td.gutter{display:table-cell;position:-webkit-sticky;position:sticky;left:0;z-index:1}figure.highlight td.gutter pre{text-align:right;padding:0 .75rem;border-radius:initial;border-right:1px solid #999}figure.highlight td.gutter pre span.line{color:#999}figure.highlight td.code>pre{border-top-left-radius:0;border-bottom-left-radius:0}.markdown-body{font-size:1rem;line-height:1.6;font-family:var(--font-family);margin-bottom:2rem;color:var(--post-text-color)}.markdown-body h2,.markdown-body>h1{border-bottom-color:var(--line-color)}.markdown-body h2,.markdown-body h3,.markdown-body h4,.markdown-body h5,.markdown-body h6,.markdown-body>h1{color:var(--post-heading-color);transition:color .2s ease-in-out,border-bottom-color .2s ease-in-out;font-weight:700;margin-bottom:.75em;margin-top:2em}.markdown-body h2::before,.markdown-body h3::before,.markdown-body h4::before,.markdown-body h5::before,.markdown-body h6::before,.markdown-body>h1::before{display:block;content:"";margin-top:-5rem;height:5rem;width:1px;visibility:hidden}.markdown-body h2:focus,.markdown-body h3:focus,.markdown-body h4:focus,.markdown-body h5:focus,.markdown-body h6:focus,.markdown-body>h1:focus{outline:0}.markdown-body a{color:var(--post-link-color)}.markdown-body strong{font-weight:700}.markdown-body code{tab-size:4;background-color:var(--inlinecode-bg-color);transition:background-color .2s ease-in-out}.markdown-body table tr{background-color:var(--board-bg-color);transition:background-color .2s ease-in-out}.markdown-body table tr:nth-child(2n){background-color:var(--board-bg-color);transition:background-color .2s ease-in-out}.markdown-body table td,.markdown-body table th{border-color:var(--line-color);transition:border-color .2s ease-in-out}.markdown-body pre{font-size:var(--code-font-size)!important}.markdown-body pre .mermaid{text-align:center}.markdown-body pre .mermaid>svg{min-width:100%}.markdown-body figure>a>img,.markdown-body figure>img,.markdown-body p>a>img,.markdown-body p>img{max-width:90%;margin:1.5rem auto;display:block;box-shadow:0 5px 11px 0 rgba(0,0,0,.18),0 4px 15px 0 rgba(0,0,0,.15);border-radius:4px;background-color:transparent}.markdown-body blockquote{color:var(--sec-text-color)}.markdown-body details{cursor:pointer}.markdown-body details summary{outline:0}.markdown-body hr,hr{background-color:initial;border-top:1px solid var(--line-color);transition:border-top-color .2s ease-in-out}.markdown-body hr{height:0;margin:2rem 0}.markdown-body figcaption.image-caption{font-size:.8rem;color:var(--post-text-color);opacity:.65;line-height:1;margin:-.75rem auto 2rem;text-align:center}.markdown-body figcaption:not(.image-caption){display:none}.post-content,post-custom{box-sizing:border-box;padding-left:10%;padding-right:10%}@media (max-width:767px){.post-content,post-custom{padding-left:2rem;padding-right:2rem}.page-content,.post-content{overflow:hidden}}@media (max-width:424px){.post-content,post-custom{padding-left:1rem;padding-right:1rem}.page-content,.post-content{overflow:hidden}.anchorjs-link-left{opacity:0!important}}.page-content strong,.post-content strong{font-weight:700}.page-content>:nth-child(2),.post-content>:nth-child(2){margin-top:0}.page-content img,.post-content img{object-fit:cover;max-width:100%}.post-metas{display:flex;flex-wrap:wrap;font-size:.9rem}.post-meta>:not(.hover-with-bg){margin-right:.2rem}.post-prevnext{display:flex;flex-wrap:wrap;justify-content:space-between;font-size:.9rem;margin-left:-.35rem;margin-right:-.35rem}.post-prevnext .post-next,.post-prevnext .post-prev{display:flex;padding-left:0;padding-right:0}.post-prevnext .post-next i,.post-prevnext .post-prev i{font-size:1.5rem}.post-prevnext .post-next a,.post-prevnext .post-prev a{display:flex;align-items:center}.post-prevnext .post-next .hidden-mobile,.post-prevnext .post-prev .hidden-mobile{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;text-overflow:ellipsis;overflow:hidden}@media (max-width:575px){.post-prevnext .post-next .hidden-mobile,.post-prevnext .post-prev .hidden-mobile{display:none}}.post-prevnext .post-next:active i,.post-prevnext .post-next:hover i,.post-prevnext .post-prev:active i,.post-prevnext .post-prev:hover i{-webkit-animation-duration:1s;animation-duration:1s;-webkit-animation-delay:.1s;animation-delay:.1s;-webkit-animation-timing-function:ease-in-out;animation-timing-function:ease-in-out;-webkit-animation-iteration-count:infinite;animation-iteration-count:infinite;-webkit-animation-fill-mode:forwards;animation-fill-mode:forwards;-webkit-animation-direction:alternate;animation-direction:alternate}.post-prevnext .post-prev:active i,.post-prevnext .post-prev:hover i{-webkit-animation-name:post-prev-anim;animation-name:post-prev-anim}.post-prevnext .post-next:active i,.post-prevnext .post-next:hover i{-webkit-animation-name:post-next-anim;animation-name:post-next-anim}.post-prevnext .post-next{justify-content:flex-end}.post-prevnext .fa-chevron-left{margin-right:.5rem}.post-prevnext .fa-chevron-right{margin-left:.5rem}#seo-header{color:var(--post-heading-color);font-weight:700;margin-top:.5em;margin-bottom:.75em;border-bottom-color:var(--line-color);border-bottom-style:solid;border-bottom-width:2px;line-height:1.5}#comments,.custom{margin-top:2rem}#comments noscript{display:block;text-align:center;padding:2rem 0}.visitors{font-size:.8em;padding:.45rem;float:right}a.fancybox:hover{text-decoration:none}.mjx-container,mjx-container{overflow-x:auto;overflow-y:hidden!important;padding:.5em 0}.mjx-container svg:focus,.mjx-container:focus,mjx-container svg:focus,mjx-container:focus{outline:0}.mjx-char{line-height:1}.katex-block{overflow-x:auto}.katex,.mjx-mrow{white-space:pre-wrap!important}.footnote-ref [class*=hint--][aria-label]:after{max-width:12rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@-moz-keyframes post-prev-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(-.35rem);transform:translateX(-.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}@-webkit-keyframes post-prev-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(-.35rem);transform:translateX(-.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}@-o-keyframes post-prev-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(-.35rem);transform:translateX(-.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}@keyframes post-prev-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(-.35rem);transform:translateX(-.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}@-moz-keyframes post-next-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(.35rem);transform:translateX(.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}@-webkit-keyframes post-next-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(.35rem);transform:translateX(.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}@-o-keyframes post-next-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(.35rem);transform:translateX(.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}@keyframes post-next-anim{0%{-webkit-transform:translateX(0);transform:translateX(0)}50%{-webkit-transform:translateX(.35rem);transform:translateX(.35rem)}100%{-webkit-transform:translateX(0);transform:translateX(0)}}.fold{margin:1rem 0;border:.5px solid var(--fold-border-color);position:relative;clear:both;border-radius:.125rem}.fold .fold-title{color:var(--fold-title-color);padding:.5rem .75rem;font-size:.9rem;font-weight:700;border-radius:.125rem}.fold .fold-title:not(.collapsed)>.fold-arrow{transform:rotate(90deg);transform-origin:center center}.fold .fold-title .fold-arrow{display:inline-block;margin-right:.35rem;transition:transform .3s ease-out}.fold .fold-content{padding:1rem 1rem}.fold .fold-content>:last-child{margin-bottom:0}.fold-default,.fold-secondary{background-color:rgba(187,187,187,.25)}.fold-primary{background-color:rgba(183,160,224,.25)}.fold-info{background-color:rgba(160,197,228,.25)}.fold-success{background-color:rgba(174,220,174,.25)}.fold-warning{background-color:rgba(248,214,166,.25)}.fold-danger{background-color:rgba(236,169,167,.25)}.fold-light{background-color:rgba(254,254,254,.25)}.note{padding:.75rem;border-left:.35rem solid;border-radius:.25rem;margin:1.5rem 0;color:var(--text-color);transition:color .2s ease-in-out;font-size:.9rem}.note a{color:var(--text-color);transition:color .2s ease-in-out}.note :last-child{margin-bottom:0}.note-default,.note-secondary{background-color:rgba(187,187,187,.25);border-color:#777}.note-primary{background-color:rgba(183,160,224,.25);border-color:#6f42c1}.note-success{background-color:rgba(174,220,174,.25);border-color:#5cb85c}.note-danger{background-color:rgba(236,169,167,.25);border-color:#d9534f}.note-warning{background-color:rgba(248,214,166,.25);border-color:#f0ad4e}.note-info{background-color:rgba(160,197,228,.25);border-color:#428bca}.note-light{background-color:rgba(254,254,254,.25);border-color:#0f0f0f}.label{display:inline;border-radius:3px;font-size:85%;margin:0;padding:.2em .4em;color:var(--text-color);transition:color .2s ease-in-out}.label-default,.label-secondary{background-color:rgba(187,187,187,.25)}.label-primary{background-color:rgba(183,160,224,.25)}.label-info{background-color:rgba(160,197,228,.25)}.label-success{background-color:rgba(174,220,174,.25)}.label-warning{background-color:rgba(248,214,166,.25)}.label-danger{background-color:rgba(236,169,167,.25)}.markdown-body .btn{border:1px solid var(--line-color);background-color:var(--button-bg-color);color:var(--text-color);transition:color .2s ease-in-out,background .2s ease-in-out,border-color .2s ease-in-out;border-radius:.25rem;display:inline-block;font-size:.875em;line-height:2;padding:0 .75rem;margin-bottom:1rem}.markdown-body .btn:hover{background-color:var(--button-hover-bg-color);text-decoration:none}.group-image-container{margin:1.5rem auto}.group-image-container img{margin:0 auto;border-radius:3px;background-color:transparent;box-shadow:0 3px 9px 0 rgba(0,0,0,.15),0 3px 9px 0 rgba(0,0,0,.15)}.group-image-row{margin-bottom:.5rem;display:flex;justify-content:center}.group-image-wrap{flex:1;display:flex;justify-content:center}.group-image-wrap:not(:last-child){margin-right:.25rem}input[type=checkbox]{margin:0 .2em .2em 0;vertical-align:middle}.list-group a~p.h5{margin-top:1rem}.list-group-item{display:flex;background-color:transparent;border:0}.list-group-item time{flex:0 0 5rem}.list-group-item .list-group-item-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media (max-width:575px){.list-group-item{font-size:.95rem;padding:.5rem .75rem}.list-group-item time{flex:0 0 4rem}}.list-group-item-action{color:var(--text-color)}.list-group-item-action:focus,.list-group-item-action:hover{color:var(--link-hover-color);background-color:var(--link-hover-bg-color)}.about-avatar{position:relative;margin:-8rem auto 1rem;width:10rem;height:10rem;z-index:3}.about-avatar img{width:100%;height:100%;border-radius:50%;background-color:transparent;object-fit:cover;box-shadow:0 2px 5px 0 rgba(0,0,0,.16),0 2px 10px 0 rgba(0,0,0,.12)}.about-info>div{margin-bottom:.5rem}.about-name{font-size:1.75rem;font-weight:700}.about-intro{font-size:1rem}.about-icons>a:not(:last-child){margin-right:.5rem}.about-icons>a>i{font-size:1.5rem}.category-bar .category-list{max-height:85vh;overflow-y:auto;overflow-x:hidden}.category-bar .category-list::-webkit-scrollbar{display:none}.category-bar .category-list>.category-sub>a{font-weight:700;font-size:1.2rem}.category-bar .category-list .category-item-action i{margin:0}.category-bar .category-list .category-subitem.list-group-item{padding-left:.5rem;padding-right:0}.category-bar .category-list .category-collapse .category-post-list{margin-top:.25rem;margin-bottom:.5rem}.category-bar .category-list .category-collapse .category-post{font-size:.9rem;line-height:1.75}.category-bar .category-list .category-item-action:hover{background-color:initial}.category-bar .list-group-item{padding:0}.category-bar .list-group-item.active{color:var(--link-hover-color);background-color:initial;font-weight:700;font-family:iconfont;font-style:normal;-webkit-font-smoothing:antialiased}.category-bar .list-group-item.active::before{content:"\e61f";font-weight:initial;margin-right:.25rem}.category-bar .list-group-count{margin-left:.2rem;margin-right:.2rem;font-size:.9em}.category-bar .list-group-item-action:focus,.category-bar .list-group-item-action:hover{background-color:initial}.category-chains{display:flex;flex-wrap:wrap}.category-chains>:not(:last-child){margin-right:1em}.category:not(:last-child){margin-bottom:1rem}.category .category-item,.category .category-subitem{font-weight:700;display:flex;align-items:center}.category .category-item{font-size:1.25rem}.category .category-subitem{font-size:1.1rem}.category .category-collapse{padding-left:1.25rem;width:100%}.category .category-count{font-size:.9rem;font-weight:initial;min-width:1.3em;line-height:1.3em;display:flex;align-items:center}.category .category-count i{padding-right:.25rem}.category .category-count span{width:2rem}.category .category-post{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.category .category-item-action:not(.collapsed)>i{transform:rotate(90deg);transform-origin:center center}.category .category-item-action i{transition:transform .3s ease-out;display:inline-block;margin-left:.25rem}.category .category-item-action .category:hover{z-index:1;color:var(--link-hover-color);text-decoration:none;background-color:var(--link-hover-bg-color)}.category .row{margin-left:0;margin-right:0}.tagcloud{padding:1rem 5%}.tagcloud a{display:inline-block;padding:.5rem}.tagcloud a:hover{color:var(--link-hover-color)!important}.links .card{box-shadow:none;min-width:33%;background-color:transparent;border:0}.links .card-body{margin:1rem 0;padding:1rem;border-radius:.3rem;display:block;width:100%;height:100%}.links .card-body:hover .link-avatar{transform:scale(1.1)}.links .card-content{display:flex;flex-wrap:nowrap;width:100%;height:3.5rem}.link-avatar{flex:none;width:3rem;height:3rem;margin-right:.75rem;object-fit:cover;transition-duration:.2s;transition-timing-function:ease-in-out}.link-avatar img{width:100%;height:100%;border-radius:50%;background-color:transparent;object-fit:cover}.link-text{flex:1;display:grid;flex-direction:column;line-height:1.5}.link-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-color);font-weight:700}.link-intro{max-height:2rem;font-size:.85rem;line-height:1.2;color:var(--sec-text-color);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;text-overflow:ellipsis;overflow:hidden}@media (max-width:767px){.links{display:flex;flex-direction:column;justify-content:center;align-items:center}.links .card{padding-left:2rem;padding-right:2rem}}@media (min-width:768px){.link-text:only-child{margin-left:1rem}}