/*!
 * awsm.css vget-version() (https://igoradamenko.github.io/awsm.css/)
 * Copyright 2015 Igor Adamenko <mail@igoradamenko.com> (https://igoradamenko.com)
 * Licensed under MIT (https://github.com/igoradamenko/awsm.css/blob/master/LICENSE.md)
 */html{font-size:100%;line-height:1.5;background:#fff;color:#000;-webkit-overflow-scrolling:touch}body,#amp-body{margin:1.2em;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,"PingFang SC","Hiragino Sans GB",STHeiti,"Microsoft YaHei",sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:1rem}@media (min-width: 20rem){body,#amp-body{font-size:calc(1rem + .0041666667 * (100vw - 20rem))}}@media (min-width: 50rem){body,#amp-body{font-size:1.125rem}}body header,body main,body footer,body article,#amp-body header,#amp-body main,#amp-body footer,#amp-body article{position:relative;max-width:50rem;margin:0 auto}body>header,#amp-body>header{margin-bottom:3.5em}body>header h1,#amp-body>header h1{margin:0;font-size:1.5em}body>header p,#amp-body>header p{margin:0;font-size:.85em}body>header>a,#amp-body>header>a{display:block;margin:0;font-size:1.5em;text-decoration:none;line-height:1.25;font-weight:700;color:#000}body>header>a:visited,#amp-body>header>a:visited{color:#000}body>footer,#amp-body>footer{margin-top:6em;padding-bottom:1.5em;text-align:center;font-size:.8rem;color:#585858}nav{margin:1em 0}nav ul{margin:0;padding:0}nav li{display:inline-block;margin-right:1em;margin-bottom:.25em}nav li:last-child{margin-right:0}nav a:visited{color:#0064c1}nav a:hover{color:#f00000}ul,ol{padding-top:0;padding-left:2.5em}ul li+li,ol li+li{margin-top:.25em}ul li p,ol li p{margin-top:0em;margin-bottom:0em}ul li>details,ol li>details{margin:0}p{margin:1em 0;hyphens:auto;word-break:break-word}p:first-child{margin-top:0}p:last-child{margin-bottom:0}p+ul,p+ol{margin-top:.5em}p img+span,p amp-img+span,p picture+span{display:block;text-align:center;opacity:.65;font-size:.85em}p picture img,p picture amp-img{float:none;margin:0}dd{margin-bottom:1em;margin-left:0;padding-left:2.5em}dt{font-weight:700}blockquote{margin:1em 0;padding:0 1.5rem;color:#585858;border-left:5px solid #d1d9e0}aside{margin:.5em 0;color:#585858}@media (min-width: 75rem){aside{position:absolute;right:-12.5rem;width:9.375rem;max-width:9.375rem;margin:0;padding-left:.5em;font-size:.8em;border-left:1px solid #f2f2f2}}aside:first-child{margin-top:0}aside:last-child{margin-bottom:0}section+section{margin-top:2em}h1,h2,h3,h4,h5,h6{margin:1.25em 0 0;line-height:1.25}h1:hover>a[href^="#"][id]:empty,h1:focus>a[href^="#"][id]:empty,h2:hover>a[href^="#"][id]:empty,h2:focus>a[href^="#"][id]:empty,h3:hover>a[href^="#"][id]:empty,h3:focus>a[href^="#"][id]:empty,h4:hover>a[href^="#"][id]:empty,h4:focus>a[href^="#"][id]:empty,h5:hover>a[href^="#"][id]:empty,h5:focus>a[href^="#"][id]:empty,h6:hover>a[href^="#"][id]:empty,h6:focus>a[href^="#"][id]:empty{opacity:1}h1+p,h1+details,h2+p,h2+details,h3+p,h3+details,h4+p,h4+details,h5+p,h5+details,h6+p,h6+details{margin-top:.5em}h1>a[href^="#"][id]:empty,h2>a[href^="#"][id]:empty,h3>a[href^="#"][id]:empty,h4>a[href^="#"][id]:empty,h5>a[href^="#"][id]:empty,h6>a[href^="#"][id]:empty{position:absolute;left:-.65em;opacity:0;text-decoration:none;font-weight:400;line-height:1;color:#585858}@media (min-width: 50rem){h1>a[href^="#"][id]:empty,h2>a[href^="#"][id]:empty,h3>a[href^="#"][id]:empty,h4>a[href^="#"][id]:empty,h5>a[href^="#"][id]:empty,h6>a[href^="#"][id]:empty{left:-.8em}}h1>a[href^="#"][id]:empty:target,h1>a[href^="#"][id]:empty:hover,h1>a[href^="#"][id]:empty:focus,h2>a[href^="#"][id]:empty:target,h2>a[href^="#"][id]:empty:hover,h2>a[href^="#"][id]:empty:focus,h3>a[href^="#"][id]:empty:target,h3>a[href^="#"][id]:empty:hover,h3>a[href^="#"][id]:empty:focus,h4>a[href^="#"][id]:empty:target,h4>a[href^="#"][id]:empty:hover,h4>a[href^="#"][id]:empty:focus,h5>a[href^="#"][id]:empty:target,h5>a[href^="#"][id]:empty:hover,h5>a[href^="#"][id]:empty:focus,h6>a[href^="#"][id]:empty:target,h6>a[href^="#"][id]:empty:hover,h6>a[href^="#"][id]:empty:focus{opacity:1;box-shadow:none;color:#000}h1>a[href^="#"][id]:empty:target:focus,h2>a[href^="#"][id]:empty:target:focus,h3>a[href^="#"][id]:empty:target:focus,h4>a[href^="#"][id]:empty:target:focus,h5>a[href^="#"][id]:empty:target:focus,h6>a[href^="#"][id]:empty:target:focus{outline:none}h1>a[href^="#"][id]:empty::before,h2>a[href^="#"][id]:empty::before,h3>a[href^="#"][id]:empty::before,h4>a[href^="#"][id]:empty::before,h5>a[href^="#"][id]:empty::before,h6>a[href^="#"][id]:empty::before{content:"§ "}h1{font-size:2em}h2{font-size:1.5em}h3{font-size:1.25em}h4{font-size:1.125em}h5{font-size:1em}h6{margin-top:1em;font-size:.875em;color:#585858}article+article{margin-top:4em}article header p{font-size:.6em;color:#585858}article header p+h1,article header p+h2{margin-top:-.25em}article header h1+p,article header h2+p{margin-top:.25em}article header h1 a,article header h2 a{color:#000}article header h1 a:visited,article header h2 a:visited{color:#000}article header h1 a:visited:hover,article header h2 a:visited:hover{color:#f00000}article>footer{margin-top:1.5em;font-size:.85em}a{color:#0064c1;text-decoration:none}a:visited{color:#0064c1}a:hover,a:active{outline-width:0}a:hover{color:#f00000;text-decoration:underline}a abbr{font-size:1em}abbr{margin-right:-.075em;text-decoration:none;hyphens:none;letter-spacing:.075em;font-size:.9em}img,amp-img,picture{display:block;max-width:100%;height:auto;margin:0 auto}audio,video{width:100%;max-width:100%}figure{margin:1em 0 .5em;padding:0}figure+p{margin-top:.5em}figure figcaption{opacity:.65;font-size:.85em;text-align:center}table{display:inline-block;white-space:nowrap;border-spacing:0;border-collapse:collapse;overflow-x:auto;max-width:100%;text-align:left;vertical-align:top;background:linear-gradient(rgba(0,0,0,.15) 0%, rgba(0,0,0,.15) 100%) 0 0,linear-gradient(rgba(0,0,0,.15) 0%, rgba(0,0,0,.15) 100%) 100% 0;background-attachment:scroll,scroll;background-size:1px 100%,1px 100%;background-repeat:no-repeat,no-repeat}table caption{font-size:.9em;background:#fff}table td,table th{padding:.35em .75em;vertical-align:top;font-size:.9em;border:1px solid #f2f2f2;border-top:0;border-left:0}table td:first-child,table th:first-child{padding-left:0;background-image:linear-gradient(to right, #fff 50%, rgba(255,255,255,0) 100%);background-size:2px 100%;background-repeat:no-repeat}table td:last-child,table th:last-child{padding-right:0;border-right:0;background-image:linear-gradient(to left, #fff 50%, rgba(255,255,255,0) 100%);background-position:100% 0;background-size:2px 100%;background-repeat:no-repeat}table td:only-child,table th:only-child{background-image:linear-gradient(to right, #fff 50%, rgba(255,255,255,0) 100%),linear-gradient(to left, #fff 50%, rgba(255,255,255,0) 100%);background-position:0 0,100% 0;background-size:2px 100%,2px 100%;background-repeat:no-repeat,no-repeat}table th{line-height:1.25}form{margin-right:auto;margin-left:auto}@media (min-width: 50rem){form{max-width:80%}}form select,form label{display:block}form label:not(:first-child){margin-top:1em}form p label{display:inline}form p label+label{margin-left:1em}form legend:first-child+label{margin-top:0}form select,form input[type],form textarea{margin-bottom:1em}form input[type=checkbox],form input[type=radio]{margin-bottom:0}fieldset{margin:0;padding:.5em 1em;border:1px solid #585858}legend{color:#585858}button{outline:none;box-sizing:border-box;height:2em;margin:0;padding:calc(.25em - 1px) .5em;font-family:inherit;font-size:1em;border:1px solid #585858;border-radius:2px;background:#fff;color:#000;display:inline-block;width:auto;background:#f2f2f2;color:#000;cursor:pointer}button:focus{border:1px solid #000}button:not([disabled]):hover{border:1px solid #000}button:active{background-color:#585858}button[disabled]{color:#585858;cursor:not-allowed}select{outline:none;box-sizing:border-box;height:2em;margin:0;padding:calc(.25em - 1px) .5em;font-family:inherit;font-size:1em;border:1px solid #585858;border-radius:2px;background:#fff;color:#000;display:inline-block;width:auto;background:#f2f2f2;color:#000;cursor:pointer;padding-right:1.2em;background-position:top 55% right .35em;background-size:.5em;background-repeat:no-repeat;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 3 2'%3E%3Cpath fill='rgb(88, 88, 88)' fill-rule='nonzero' d='M1.5 2L3 0H0z'/%3E%3C/svg%3E")}select:focus{border:1px solid #000}select:not([disabled]):hover{border:1px solid #000}select:active{background-color:#585858}select[disabled]{color:#585858;cursor:not-allowed}select:not([disabled]):focus,select:not([disabled]):hover{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 3 2'%3E%3Cpath fill='rgb(0, 0, 0)' fill-rule='nonzero' d='M1.5 2L3 0H0z'/%3E%3C/svg%3E")}input[type=text],input[type=password],input[type^=date],input[type=email],input[type=number],input[type=search],input[type=tel],input[type=time],input[type=month],input[type=week],input[type=url]{outline:none;box-sizing:border-box;height:2em;margin:0;padding:calc(.25em - 1px) .5em;font-family:inherit;font-size:1em;border:1px solid #585858;border-radius:2px;background:#fff;color:#000;display:block;width:100%;line-height:calc(2em - 2px - (.25em - 1px)*2);appearance:none}input[type=text]:focus,input[type=password]:focus,input[type^=date]:focus,input[type=email]:focus,input[type=number]:focus,input[type=search]:focus,input[type=tel]:focus,input[type=time]:focus,input[type=month]:focus,input[type=week]:focus,input[type=url]:focus{border:1px solid #000}input[type=text]::-moz-placeholder,input[type=password]::-moz-placeholder,input[type^=date]::-moz-placeholder,input[type=email]::-moz-placeholder,input[type=number]::-moz-placeholder,input[type=search]::-moz-placeholder,input[type=tel]::-moz-placeholder,input[type=time]::-moz-placeholder,input[type=month]::-moz-placeholder,input[type=week]::-moz-placeholder,input[type=url]::-moz-placeholder{color:#585858}input[type=text]::-webkit-input-placeholder,input[type=password]::-webkit-input-placeholder,input[type^=date]::-webkit-input-placeholder,input[type=email]::-webkit-input-placeholder,input[type=number]::-webkit-input-placeholder,input[type=search]::-webkit-input-placeholder,input[type=tel]::-webkit-input-placeholder,input[type=time]::-webkit-input-placeholder,input[type=month]::-webkit-input-placeholder,input[type=week]::-webkit-input-placeholder,input[type=url]::-webkit-input-placeholder{color:#585858}input[type=text]:-ms-input-placeholder,input[type=password]:-ms-input-placeholder,input[type^=date]:-ms-input-placeholder,input[type=email]:-ms-input-placeholder,input[type=number]:-ms-input-placeholder,input[type=search]:-ms-input-placeholder,input[type=tel]:-ms-input-placeholder,input[type=time]:-ms-input-placeholder,input[type=month]:-ms-input-placeholder,input[type=week]:-ms-input-placeholder,input[type=url]:-ms-input-placeholder{color:#585858}input[type=submit],input[type=button],input[type=reset]{outline:none;box-sizing:border-box;height:2em;margin:0;padding:calc(.25em - 1px) .5em;font-family:inherit;font-size:1em;border:1px solid #585858;border-radius:2px;background:#fff;color:#000;display:inline-block;width:auto;background:#f2f2f2;color:#000;cursor:pointer;appearance:none}input[type=submit]:focus,input[type=button]:focus,input[type=reset]:focus{border:1px solid #000}input[type=submit]:not([disabled]):hover,input[type=button]:not([disabled]):hover,input[type=reset]:not([disabled]):hover{border:1px solid #000}input[type=submit]:active,input[type=button]:active,input[type=reset]:active{background-color:#585858}input[type=submit][disabled],input[type=button][disabled],input[type=reset][disabled]{color:#585858;cursor:not-allowed}input[type=color]{outline:none;box-sizing:border-box;height:2em;margin:0;padding:calc(.25em - 1px) .5em;font-family:inherit;font-size:1em;border:1px solid #585858;border-radius:2px;background:#fff;color:#000;display:block;width:100%;line-height:calc(2em - 2px - (.25em - 1px)*2);appearance:none;width:6em}input[type=color]:focus{border:1px solid #000}input[type=color]::-moz-placeholder{color:#585858}input[type=color]::-webkit-input-placeholder{color:#585858}input[type=color]:-ms-input-placeholder{color:#585858}input[type=color]:hover{border:1px solid #000}input[type=file]{outline:none;box-sizing:border-box;height:2em;margin:0;padding:calc(.25em - 1px) .5em;font-family:inherit;font-size:1em;border:1px solid #585858;border-radius:2px;background:#fff;color:#000;display:inline-block;width:auto;background:#f2f2f2;color:#000;cursor:pointer;display:block;width:100%;height:auto;padding:.75em .5em;font-size:12px;line-height:1}input[type=file]:focus{border:1px solid #000}input[type=file]:not([disabled]):hover{border:1px solid #000}input[type=file]:active{background-color:#585858}input[type=file][disabled]{color:#585858;cursor:not-allowed}input[type=checkbox],input[type=radio]{margin:-.2em .75em 0 0;vertical-align:middle}textarea{outline:none;box-sizing:border-box;height:2em;margin:0;padding:calc(.25em - 1px) .5em;font-family:inherit;font-size:1em;border:1px solid #585858;border-radius:2px;background:#fff;color:#000;display:block;width:100%;line-height:calc(2em - 2px - (.25em - 1px)*2);appearance:none;height:4.5em;resize:vertical;padding-top:.5em;padding-bottom:.5em}textarea:focus{border:1px solid #000}textarea::-moz-placeholder{color:#585858}textarea::-webkit-input-placeholder{color:#585858}textarea:-ms-input-placeholder{color:#585858}output{display:block}code,kbd,var,samp{font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;font-style:normal}code:not([class]),kbd:not([class]),var:not([class]),samp:not([class]){background:#efefef;color:#000;padding:2px 4px;border-radius:6px;font-size:.85em}pre{overflow-x:auto;font-size:.8em;padding:16px;border:1px solid gray;border-radius:6px}pre>code{display:inline-block;overflow-x:visible;box-sizing:border-box;min-width:100%;font-size:1em}hr{height:1px;margin:2em 0;border:0;background:#f2f2f2}details{background:#f2f2f2;border-radius:6px;margin:1em 0;padding:0 1em}details nav{margin:.5em 0}details nav ul{margin:0;padding-left:1em}details nav li{display:list-item;margin-right:1em;margin-bottom:.25em}details nav a{text-decoration:none}details[open]{padding-bottom:.5em}summary{cursor:pointer;font-weight:700;padding:.5em 0}noscript{color:#d00000}::selection{background:rgba(0,100,193,.25)}.footnotes{font-size:90%}article.home-section+article.home-section{margin-top:2em}ul.pages-list{list-style:none;margin:1em 0;padding:0}ul.pages-list li{margin:.5em 0;display:flex;flex-direction:column-reverse}@media (min-width: 50rem){ul.pages-list li{flex-direction:row;justify-content:space-between;align-items:center}}ul.pages-list li .subtitle{margin-top:-.3em;font-size:.85em}ul.pages-list li small{color:#585858;font-size:.75em}.header__verification::after{content:"";display:inline-block;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%231d9bf0' viewBox='0 0 16 16'%3E%3Cpath d='M10.067.87a2.89 2.89 0 0 0-4.134 0l-.622.638-.89-.011a2.89 2.89 0 0 0-2.924 2.924l.01.89-.636.622a2.89 2.89 0 0 0 0 4.134l.637.622-.011.89a2.89 2.89 0 0 0 2.924 2.924l.89-.01.622.636a2.89 2.89 0 0 0 4.134 0l.622-.637.89.011a2.89 2.89 0 0 0 2.924-2.924l-.01-.89.636-.622a2.89 2.89 0 0 0 0-4.134l-.637-.622.011-.89a2.89 2.89 0 0 0-2.924-2.924l-.89.01-.622-.636zm.287 5.984-3 3a.5.5 0 0 1-.708 0l-1.5-1.5a.5.5 0 1 1 .708-.708L7 8.793l2.646-2.647a.5.5 0 0 1 .708.708z'/%3E%3C/svg%3E") no-repeat;width:1em;height:1em;margin-left:5px;vertical-align:-15%}.header__official{color:#536471}.header__official::before{content:"";display:inline-block;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23536471' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M10.354 6.146a.5.5 0 0 1 0 .708l-3 3a.5.5 0 0 1-.708 0l-1.5-1.5a.5.5 0 1 1 .708-.708L7 8.793l2.646-2.647a.5.5 0 0 1 .708 0z'/%3E%3Cpath d='m10.273 2.513-.921-.944.715-.698.622.637.89-.011a2.89 2.89 0 0 1 2.924 2.924l-.01.89.636.622a2.89 2.89 0 0 1 0 4.134l-.637.622.011.89a2.89 2.89 0 0 1-2.924 2.924l-.89-.01-.622.636a2.89 2.89 0 0 1-4.134 0l-.622-.637-.89.011a2.89 2.89 0 0 1-2.924-2.924l.01-.89-.636-.622a2.89 2.89 0 0 1 0-4.134l.637-.622-.011-.89a2.89 2.89 0 0 1 2.924-2.924l.89.01.622-.636a2.89 2.89 0 0 1 4.134 0l-.715.698a1.89 1.89 0 0 0-2.704 0l-.92.944-1.32-.016a1.89 1.89 0 0 0-1.911 1.912l.016 1.318-.944.921a1.89 1.89 0 0 0 0 2.704l.944.92-.016 1.32a1.89 1.89 0 0 0 1.912 1.911l1.318-.016.921.944a1.89 1.89 0 0 0 2.704 0l.92-.944 1.32.016a1.89 1.89 0 0 0 1.911-1.912l-.016-1.318.944-.921a1.89 1.89 0 0 0 0-2.704l-.944-.92.016-1.32a1.89 1.89 0 0 0-1.912-1.911l-1.318.016z'/%3E%3C/svg%3E") no-repeat;width:1em;height:1em;margin-right:5px;vertical-align:-10%}