._x5,._x9{display:block}._x9{color:#666;font-size:.889rem;margin-bottom:1rem}._xb{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row}._xc{display:inline}._x1h{display:inline-block;margin-right:10px}._x1h,._x1h:link{color:grey}._xe{display:inline}._xe:before{content:"#"}._xx{display:block;margin-bottom:1em}@media screen and (min-width:45em){._xx{margin-bottom:3em}}._x1q{display:block;font-size:1.44em;font-weight:400;line-height:1.2003000750187547;margin-bottom:.8rem;margin-top:1.6rem}@media screen and (min-width:45em){._x1q{font-size:2.3685930369999997em;margin-top:3.2rem}}._x6{display:block;-webkit-box-flex:1;-ms-flex:1 0 auto;flex:1 0 auto;margin-left:auto;margin-right:auto;max-width:47em;padding-left:1em;padding-right:1em;width:100%}@media screen and (min-width:65em){._x6{padding-left:0;padding-right:0}}._xh{margin-bottom:1rem}._xh,._xi{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-flex:1;-ms-flex:1;flex:1;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;line-height:1.333;text-align:left}._x1l{border-top:5px dashed #eee;margin-top:3.2rem;padding-top:1.6rem}._x1l,._xk,details,dialog,main{display:block}._xk{color:#777;font-size:.7rem}._xl{display:inline;font-size:1.2rem}._xf{display:block;font-size:1rem}._x1f{background:#ffeb3b;display:inline-block}._xq{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:#fafafa;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-ms-flex-negative:0;flex-shrink:0;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}@media screen and (min-width:45em){._xq{background:#ffd54f;-webkit-box-shadow:0 2px 0 0 #f2f2f2;box-shadow:0 2px 0 0 #f2f2f2;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;padding-left:calc((100% - 47em)/2);padding-right:calc((100% - 47em)/2)}}._xr{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;font-size:1.618em;line-height:2.625em;text-decoration:none}._xr,._xr:link{color:#4a4a4a}._xs{border:0;display:inline;font-size:14px;height:42px;margin-right:10px}._x11{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:#ffd54f;-webkit-box-shadow:0 0 1px #ccc;box-shadow:0 0 1px #ccc;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;list-style:none;margin:0;overflow-x:auto;overflow-y:hidden;padding-left:0;text-align:right;width:100%}@media screen and (min-width:45em){._x11{background:0 0;-webkit-box-shadow:none;box-shadow:none;-webkit-mask-image:none;mask-image:none;position:static;width:auto}}._x12{-webkit-mask-image:linear-gradient(90deg,rgba(255,213,79,.5),#000 20px,#000 90%,rgba(255,213,79,.5));mask-image:linear-gradient(90deg,rgba(255,213,79,.5),#000 20px,#000 90%,rgba(255,213,79,.5))}._x13{-webkit-mask-image:none;mask-image:none}._x16{display:block;-ms-flex-negative:0;flex-shrink:0;font-size:1em;margin:0 .702em}._x1b{display:inline-block;padding-bottom:1em;padding-top:1em;text-decoration:none;-webkit-transition:color .1s;transition:color .1s}._x1b:hover{color:#000;text-decoration:underline}._x1b,._x1b:link{color:#000}@media screen and (min-width:45em){._x1b{color:#333;font-size:1.125em}._x1b:hover{color:#000}._x1b:link{color:#03c}}._x18{font-weight:700}._x19{font-weight:400}._x1a{color:#000;cursor:text;display:inline-block;font-weight:700;padding-bottom:1em;padding-top:1em}@media screen and (min-width:45em){._x1a{color:#000;font-size:1.125em;font-weight:700}}._xt{color:#03c;display:inline;margin-right:10px}._x1m{background:#fafafa;border-bottom:1em solid #ffd54f;border-top:1px solid #f0f0f0;color:#444;display:block;margin-top:3rem;padding:3rem 1em}@media screen and (min-width:45em){._x1m{border-bottom:.5em solid #ffd54f}}@media screen and (min-width:65em){._x1m{padding-left:0;padding-right:0}}._xv{display:block;margin-left:auto;margin-right:auto;max-width:47em;padding:1em 0}._xw{font-size:.889em;margin-bottom:1em}._xw,._xz{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row}._x10,._xz{color:#333;font-size:.79rem}._x10{display:block;margin-left:auto;margin-right:auto}._xa{display:inline-block}._x14{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:#c00;border-radius:50%;bottom:1em;color:#fff;cursor:pointer;display:none;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:3.5em;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;line-height:1;position:fixed;right:1em;-webkit-transform:translateZ(0);transform:translateZ(0);width:3.5em;z-index:2}@media screen and (min-width:65em){._x14{display:none}}._x15{border-color:transparent transparent #fff;border-style:solid;border-width:0 7.5px 10px;display:block;height:0;margin-bottom:5px;width:0}*,:after,:before{-webkit-box-sizing:border-box;box-sizing:border-box}:after,:before{text-decoration:inherit;vertical-align:inherit}html{cursor:default;line-height:1.5;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-tap-highlight-color:transparent;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;word-break:break-word;font-size:1.125em}button,dl dl,dl ol,dl ul,input,ol dl,ol ol,ol ul,select,ul dl,ul ol,ul ul{margin:0}h1{font-size:2em;margin:.67em 0}hr{height:0;overflow:visible}nav ol,nav ul{list-style:none;padding:0}code,kbd,pre,samp{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted}b,strong{font-weight:bolder}small{font-size:80%}audio,canvas,iframe,img,svg,video{vertical-align:middle}audio,canvas,video{display:inline-block}audio:not([controls]){display:none;height:0}iframe,img{border-style:none}svg:not([fill]){fill:currentColor}svg:not(:root){overflow:hidden}table{border-collapse:collapse}button{overflow:visible;text-transform:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}fieldset{border:1px solid #a0a0a0;padding:.35em .75em .625em}input{overflow:visible}legend{color:inherit;display:table;max-width:100%;white-space:normal}progress{display:inline-block;vertical-align:baseline}select{text-transform:none}textarea{margin:0;overflow:auto;resize:vertical}[type=checkbox],[type=radio]{padding:0}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}::-webkit-input-placeholder{color:inherit;opacity:.54}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}::-moz-focus-inner{border-style:none;padding:0}:-moz-focusring{outline:1px dotted ButtonText}:-moz-ui-invalid{box-shadow:none}dialog{background-color:#fff;border:solid;color:#000;height:-moz-fit-content;height:-webkit-fit-content;height:fit-content;left:0;margin:auto;padding:1em;position:absolute;right:0;width:-moz-fit-content;width:-webkit-fit-content;width:fit-content}dialog:not([open]){display:none}summary{display:list-item}[tabindex],a,area,button,input,label,select,summary,textarea{-ms-touch-action:manipulation;touch-action:manipulation}[hidden],template{display:none}[aria-busy=true]{cursor:progress}[aria-controls]{cursor:pointer}[aria-disabled=true],[disabled]{cursor:not-allowed}[aria-hidden=false][hidden]{display:initial}[aria-hidden=false][hidden]:not(:focus){clip:rect(0,0,0,0);position:absolute}code[class*=language-],pre[class*=language-]{color:#f8f8f2;background:0 0;text-shadow:0 1px rgba(0,0,0,.3);font-family:Consolas,Monaco,Andale Mono,Ubuntu Mono,monospace;font-size:1em;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-hyphens:none;-ms-hyphens:none;hyphens:none}pre[class*=language-]{padding:1em;margin:.5em 0;overflow:auto;border-radius:.3em}:not(pre)>code[class*=language-],pre[class*=language-]{background:#272822}:not(pre)>code[class*=language-]{padding:.1em;border-radius:.3em;white-space:normal}.token.cdata,.token.comment,.token.doctype,.token.prolog{color:#708090}.token.punctuation{color:#f8f8f2}.namespace{opacity:.7}.token.constant,.token.deleted,.token.property,.token.symbol,.token.tag{color:#f92672}.token.boolean,.token.number{color:#ae81ff}.token.attr-name,.token.builtin,.token.char,.token.inserted,.token.selector,.token.string{color:#a6e22e}.language-css .token.string,.style .token.string,.token.entity,.token.operator,.token.url,.token.variable{color:#f8f8f2}.token.atrule,.token.attr-value,.token.class-name,.token.function{color:#e6db74}.token.keyword{color:#66d9ef}.token.important,.token.regex{color:#fd971f}.token.bold,.token.important{font-weight:700}.token.italic{font-style:italic}.token.entity{cursor:help}::-moz-selection{background:rgba(76,175,79,.24)}::selection{background:rgba(76,175,79,.24)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,system-ui,Helvetica Neue,PingFang SC,Microsoft YaHei,Source Han Sans SC,Noto Sans CJK SC,WenQuanYi Micro Hei,sans-serif;word-break:break-word;line-height:1.6}#___OkMarvin___{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:100vh}code:not([class^=language]){color:#c7254e;padding:0 3px;display:inline-block;word-break:break-word;line-height:1.3;background:-webkit-gradient(linear,left top,right top,from(#fce4ed),to(#ffe8cc));background:linear-gradient(90deg,#fce4ed,#ffe8cc)}blockquote{margin:18px 0;padding:0 30px;position:relative;-webkit-box-shadow:inset 0 0 1px rgba(0,0,0,.2);box-shadow:inset 0 0 1px rgba(0,0,0,.2);border-left:5px solid #ddd;overflow:auto}iframe,img,video{max-width:100%;height:auto;max-height:800px}img{border:1px solid rgba(0,0,0,.1)}a{text-decoration:none;color:#03c}a:hover{text-decoration:underline}.d-flex{display:-webkit-box!important;display:-ms-flexbox!important;display:flex!important}table th{text-align:left}table td,table th{border-top:1px solid #ccc;padding:2px 5px}table tbody tr:nth-of-type(odd){background:rgba(0,0,0,.05)}h4{font-size:1.2rem}h3{font-size:1.44rem;margin-top:3.2rem;margin-bottom:0;font-weight:400}.toc__heading,h2{font-size:1.728rem}h2{margin-top:4.8rem;margin-bottom:.8rem;overflow:hidden}.toc{margin-top:1.6rem}.toc__heading{font-weight:400;margin-bottom:0;margin-top:0}.toc ol{padding-left:1.5rem;list-style:decimal}.toc+*{margin-top:0}.okmarvin-container{line-height:1.4;color:#222}.okmarvin-container>p{margin-top:1.5rem;margin-bottom:.5rem}.okmarvin-container>h2>span{position:relative;display:inline-block}.okmarvin-container>h2>span:after{display:block;background:#ffc107;width:110%;content:"";position:relative;z-index:-1;opacity:.6;height:20px;top:-15px}.okmarvin-container a:link{border-bottom:1px solid rgba(0,0,255,.25)}.okmarvin-container a:hover{text-decoration:none}pre[class*=language-]{margin-left:-1em;margin-right:-1em}@media (max-width:45em){pre[class*=language-]{border-radius:0}}@media screen and (min-width:45em){h4{font-size:1rem}h3{font-size:1.333rem}h2{font-size:1.776889rem}h1{font-size:2.368593037rem}.toc{margin-top:3.2rem}pre[class*=language-]{margin-left:auto;margin-right:auto}}::-moz-selection{background-color:#ffd54f}::selection{background-color:#ffd54f}._x1i{display:block;margin-top:50px}._x1j{border-bottom:1px solid #ccc;color:grey;display:inline-block;-webkit-transition:all .3s;transition:all .3s}._x1j:hover{border-bottom-color:#00f;color:#00f;text-decoration:none}