@font-face{font-family:"science-open-icons";src:url("/css/fonts/scienceopen_icons_01_032.woff2") format("woff2");font-display:block}/*! normalize.css v5.0.0 | MIT License | github.com/necolas/normalize.css */html{font-family:sans-serif;line-height:1.15;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}article,aside,footer,header,nav,section{display:block}h1{font-size:2em;margin:.67em 0}figcaption,figure,main{display:block}figure{margin:1em 40px}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent;-webkit-text-decoration-skip:objects}a:active,a:hover{outline-width:0}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:inherit}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}dfn{font-style:italic}mark{background-color:#ff0;color:#000}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-0.25em}sup{top:-0.5em}audio,video{display:inline-block}audio:not([controls]){display:none;height:0}img{border-style:none}svg:not(:root){overflow:hidden}button,input,optgroup,select,textarea{font-family:sans-serif;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}button,html [type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner{border-style:none;padding:0}button:-moz-focusring,[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring{outline:1px dotted ButtonText}fieldset{border:1px solid silver;margin:0 2px;padding:.35em .625em .75em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{display:inline-block;vertical-align:baseline}textarea{overflow:auto}[type=checkbox],[type=radio]{box-sizing:border-box;padding:0}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details,menu{display:block}summary{display:list-item}canvas{display:inline-block}template{display:none}[hidden]{display:none}*{box-sizing:border-box;margin-top:0;word-wrap:break-word;overflow-wrap:break-word;overflow-wrap:anywhere}html,body,input,textarea{font-family:"Segoe UI",Tahoma,sans-serif;font-size:14px;line-height:20px;color:#000}body{background:#d6d6d6;overflow-y:scroll;min-width:300px}body.so--full-screen{overflow-y:unset}body.so--has-modal-layers{overflow-y:hidden}body.so--embedded{overflow-y:hidden;background:#f0f0f0}h1,h2,h3,h4,h5,h6,p{margin-top:0;margin-bottom:10px}a{text-decoration:none;cursor:pointer}a:hover{text-decoration:underline}hr{margin:10px 0;border:0;border-top:1px solid #d6d6d6}hr.so-no-margin{margin:0}select{font-family:"Segoe UI",Tahoma,sans-serif;font-size:14px;color:#4998aa}input:-webkit-autofill{box-shadow:0 0 0 1000px #e5f2d1 inset}::-webkit-input-placeholder{text-overflow:ellipsis;color:#a6a6a6;font-style:italic}::-moz-placeholder{text-overflow:ellipsis;color:#a6a6a6;opacity:1;font-style:italic}:-ms-input-placeholder{text-overflow:ellipsis;color:#a6a6a6;font-style:italic}label{cursor:pointer}button{font:inherit;text-align:initial;cursor:pointer}button:disabled,button.so--disabled{cursor:auto}button::-moz-focus-inner{padding:0;border:0}mark{background-color:rgba(146,208,80,.4);border-radius:3px;box-shadow:inset 0 0 0 1px rgba(76,112,20,.2);padding:0 1px}li{margin-bottom:5px}ul,menu,dir{padding-left:20px;list-style:disc outside;list-style-image:url("data:image/svg+xml;base64,PHN2ZyB2aWV3Qm94PSIwIDAgMTAgMTAiIHdpZHRoPSIxMCIgaGVpZ2h0PSIxMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cGF0aCBkPSJtMiAyaDZ2NmgtNnoiIGZpbGw9IiM5MmQwNTAiLz48L3N2Zz4=")}ol{padding-left:20px;list-style:decimal outside}ol.so-ol>li{font-size:12px;line-height:18px;font-weight:bold;color:#92d050}ol.so-ol>li>*{font-size:14px;line-height:20px;font-weight:normal;color:#000}ul ul,ol ul{list-style-type:circle;list-style-image:url("data:image/svg+xml;base64,PHN2ZyB2aWV3Qm94PSIwIDAgMTAgMTAiIHdpZHRoPSIxMCIgaGVpZ2h0PSIxMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cGF0aCBkPSJtMCA0aDEwdjJoLTEweiIgZmlsbD0iIzdlN2U3ZSIvPjwvc3ZnPg==")}ol ol ul,ol ul ul,ul ol ul,ul ul ul{list-style-type:square}dl{margin:0 0 10px}dd{margin:0 0 10px;padding-left:20px}dt{font-weight:bold}abbr,acronym{border-bottom:1px dotted #d6d6d6}blockquote{margin:40px 0;border-top:1px solid #d6d6d6;border-bottom:1px solid #d6d6d6;padding:10px 0 10px 40px;background:url("data:image/svg+xml;base64,PHN2ZyB2aWV3Qm94PSIwIDAgMjguMzA5MSAyMS4wMjU5IiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIj48c3ltYm9sIGlkPSJhIj48cGF0aCBkPSJtMCAxMi4yNGMwLTYuNyA1LjQtMTAuODcgMTEuMzgtMTIuMjQgMS4xMS4xMSAxLjU1IDEuNDkuNzIgMi4yMy0yLjU5Ljk0LTYuMTIgMy4zMS02LjEyIDYuNyAwIDMuMDIgMi4yMyA0LjAzIDMuOTYgNC40NiAxLjM2LjQ0IDIuMjUgMS43NCAyLjE2IDMuMTctLjE2IDIuNi0yLjM3IDQuNTktNC45NyA0LjQ2LTIuOTUgMC03LjEzLTIuNTItNy4xMy04Ljc4eiIgb3BhY2l0eT0iLjE2MDAwMDAxIi8+PC9zeW1ib2w+PHVzZSBoZWlnaHQ9IjEwMCUiIHRyYW5zZm9ybT0idHJhbnNsYXRlKDE1Ljc3Nzg1NCkiIHdpZHRoPSIxMDAlIiB4bGluazpocmVmPSIjYSIvPjx1c2UgaGVpZ2h0PSIxMDAlIiB3aWR0aD0iMTAwJSIgeGxpbms6aHJlZj0iI2EiLz48L3N2Zz4=") no-repeat 0 10px/29px}blockquote>*:last-child{margin-bottom:0}blockquote>cite{display:block;margin:10px 0;text-align:right;font-style:italic}blockquote>cite:before{content:" – "}img{max-width:100%;height:auto}img.alignright{float:right;clear:right;margin:0 0 10px 20px;max-width:50%}img.alignleft{float:left;clear:left;margin:0 20px 10px 0;max-width:50%}img.aligncenter{display:block;margin:0 auto 10px}pre{white-space:pre-wrap}iframe,embed{max-width:100%}address{margin:0 0 10px}table[style*="width:"]{width:auto !important}td[style*="white-space:"]{white-space:normal !important}.wp-block-image .aligncenter,.wp-block-image .alignleft,.wp-block-image .alignright{display:table}.wp-block-image .aligncenter>figcaption,.wp-block-image .alignleft>figcaption,.wp-block-image .alignright>figcaption{display:table-caption;caption-side:bottom}body{background:#fff}.so-row:before,.so-row-cropper:before,.so-row-wrapper:before,.so-clearfix:before,.so-lay-summary-body:before,.so-d .footnote:before,.so-d .so-custom-list li:before,.so-row:after,.so-row-cropper:after,.so-row-wrapper:after,.so-clearfix:after,.so-lay-summary-body:after,.so-d .footnote:after,.so-d .so-custom-list li:after{content:" ";display:block;overflow:hidden;height:0}.so-clearfix:before,.so-lay-summary-body:before,.so-d .footnote:before,.so-d .so-custom-list li:before,.so-clearfix:after,.so-lay-summary-body:after,.so-d .footnote:after,.so-d .so-custom-list li:after{clear:both}.so-link-color,a{color:#4998aa}.so-link-color:hover,a:hover{color:#206570}.so-link-color:active,a:active{color:#0e3e46}.so-link-color[disabled],a[disabled],.so-link-color.so--disabled,a.so--disabled{color:#d6d6d6}.so-link-color.so--selected,a.so--selected,.so-link-color.so--selected:hover,.so-link-color.so--selected:active{color:#6ca028}.so-link-color.so--selected[disabled],a.so--selected[disabled],.so-link-color.so--selected.so--disabled,a.so--selected.so--disabled,.so-link-color.so--selected:hover[disabled],.so-link-color.so--selected:hover.so--disabled,.so-link-color.so--selected:active[disabled],.so-link-color.so--selected:active.so--disabled{color:#d6d6d6}.so-link-color.so--white,a.so--white,.so-link-color-white-inside .so-link-color,.so-link-color-white-inside a{color:#afe8f4}.so-link-color.so--white:hover,a.so--white:hover,.so-link-color-white-inside .so-link-color:hover,.so-link-color-white-inside a:hover{color:#fff}.so-link-color.so--white:active,a.so--white:active,.so-link-color-white-inside .so-link-color:active,.so-link-color-white-inside a:active{color:#c1e58f}.so-article-header-title,.so-d-heading,h1,h2,h3,h4,h5,h6{font-family:"Segoe UI Light","Segoe UI",Tahoma,sans-serif;font-weight:300}.so-d-normal{font-family:"Segoe UI",Tahoma,sans-serif;font-weight:normal}.so-d-bold{font-family:"Segoe UI",Tahoma,sans-serif;font-weight:bold}.so-d-h000{font-size:80px;line-height:114px}.so-d-h00{font-size:60px;line-height:86px}.so-d-h0{font-size:48px;line-height:69px}.so-article-header-title,.so-d-h1,h1{font-size:28px;line-height:40px}.so-d-h2,h2{font-size:28px;line-height:40px}.so-d-h3,h3{font-size:24px;line-height:34px}.so-d-h4,h4{font-size:20px;line-height:28px}.so-d-h5,h5{font-size:18px;line-height:26px;letter-spacing:.25px}.so-d-h6,h6{font-size:16px;line-height:23px;letter-spacing:.25px}.so-d-p,p{font-family:"Segoe UI",Tahoma,sans-serif;font-weight:normal;font-size:14px;line-height:20px}.so-d-pre{font-family:monospace}.so-d-code{font-family:monospace;border:1px solid #d6d6d6;background:#f0f0f0;padding:0 10px;border-radius:3px}.so-d .panel .table-figure,.so-d table[border="1"],.so-d-table{background-color:#fff;width:100%;overflow:auto}.so-d .panel .table-figure>*>tr>*,.so-d table[border="1"]>*>tr>*,.so-d-table>*>tr>*{border:1px solid #d6d6d6}.so-d .panel .table-figure>tbody>tr>th,.so-d table[border="1"]>tbody>tr>th,.so-d-table>tbody>tr>th{background-color:#f0f0f0}.so-d .panel .table-figure>thead>tr>*,.so-d table[border="1"]>thead>tr>*,.so-d-table>thead>tr>*{background-color:#d6d6d6;border-color:#a6a6a6}.so-d-figure,figure{margin:0 auto 10px;padding:10px 10px 0;background-color:#f0f0f0;box-shadow:inset 0 1px 3px rgba(0,0,0,.1);overflow:auto;max-width:100%}.so-d-figure img,figure img{display:block;margin-bottom:10px;box-shadow:0 1px 3px rgba(0,0,0,.1)}.alignright.so-d-figure,figure.alignright{float:right;clear:right;margin:0 0 10px 20px;max-width:50%}.alignleft.so-d-figure,figure.alignleft{float:left;clear:left;margin:0 20px 10px 0;max-width:50%}.so-d-figure figcaption,figure figcaption{margin:0 0 10px}.so-tiers>*:after,.so-icon{font-family:"science-open-icons" !important;font-size:16px;font-weight:normal !important;font-style:normal !important;display:inline-block;line-height:1}.so-not-list,.so-tiers{margin:0;padding:0;list-style-type:none;list-style-image:none}.so-not-list>li,.so-tiers>li{margin-bottom:0}.so-d-h5.so-lh-i{vertical-align:-2px}.so-d table[border="1"]>*>tr>td,.so-d table[border="1"]>*>tr>th{padding:5px 10px}.so-d table[align=left]{margin-top:0;margin-right:20px}.so-d table[align=right]{margin-top:0;margin-left:20px}.so-d table[align=center]{margin-left:auto;margin-right:auto}.so-d .so-custom-list{position:relative;padding-left:20px;list-style-image:none}.so-d .so-custom-list .so-custom-list-label{float:right;position:relative;right:100%;margin-right:6px;font-size:12px;line-height:18px;padding-top:2px;font-weight:bold;color:#92d050}.so-d .footnote{margin:0 0 10px 0}.so-d .footnote .so-footnote-label{font-weight:bold;float:left;margin-right:5px}.so-d .footnote .so-footnote-label+.so-footnote-content{overflow:hidden}.so-d .footnote .so-footnote-label+.so-footnote-content>:first-child{margin-top:0}.so-d .footnote .so-footnote-label+.so-footnote-content>:last-child{margin-bottom:0}.so-d .panel{margin:0 0 10px;background-color:#f0f0f0;box-shadow:inset 0 1px 3px rgba(0,0,0,.1);overflow:auto}.so-d .panel .label{font-weight:bold}.so-d .panel .label,.so-d .panel .caption,.so-d .panel .table-wrap-foot,.so-d .panel .figure-container,.so-d .panel .table-container{margin:10px}.so-d .panel .table-container{overflow:auto;background-color:#fff;padding:1px}.so-d .panel .figure-container{overflow:auto;background-color:#fff;box-shadow:0 1px 3px rgba(0,0,0,.1)}.so-d .panel .table-wrap-foot{font-size:12px;line-height:18px}.so-d .panel .figure{display:block;max-width:100%;max-height:75vh;margin:0 auto}.so-d .panel .table-figure{margin:0}.so-d .panel .table-figure .so-tr-separator{margin:-5px -10px}.so-d .panel .table-figure .so-td-content-separator{display:none}.so-icon-inline>svg{fill:currentColor;width:16px;height:16px;vertical-align:-3px}.so-icon.so--star-empty:after{content:""}.so-icon.so--star-half:after{content:""}.so-icon.so--star-full:after{content:""}.so-icon.so--menu:after{content:""}.so-icon.so--email:after{content:""}.so-icon.so--scroll-up:after{content:""}.so-icon.so--scroll-down:after{content:""}.so-icon.so--cross:after{content:""}.so-icon.so--accordion-closed:after{content:""}.so-icon.so--accordion-open:after{content:""}.so-icon.so--search:after{content:""}.so-icon.so--tree-opener-closed:after{content:""}.so-icon.so--tree-opener-open:after{content:""}.so-icon.so--comment:after{content:""}.so-icon.so--comment-new:after{content:""}.so-icon.so--comment-old:after{content:""}.so-icon.so--paperclip:after{content:""}.so-icon.so--reshare:after{content:""}.so-icon.so--rss:after{content:""}.so-icon.so--flag:after{content:""}.so-icon.so--cog:after{content:""}.so-icon.so--calendar:after{content:""}.so-icon.so--warning:after{content:""}.so-icon.so--hourglass:after{content:""}.so-icon.so--dropdown:after{content:""}.so-icon.so--triangle-right:after{content:""}.so-icon.so--triangle-left:after{content:""}.so-icon.so--checkbox-un:after{content:""}.so-icon.so--checkbox:after{content:""}.so-icon.so--checkbox-partial:after{content:""}.so-icon.so--checkbox-warning:after{content:""}.so-icon.so--radio-un:after{content:""}.so-icon.so--radio:after{content:""}.so-icon.so--to-top:after{content:""}.so-icon.so--to-bottom:after{content:""}.so-icon.so--editorial:after{content:""}.so-icon.so--bookmark:after{content:""}.so-icon.so--collection:after{content:""}.so-icon.so--share:after{content:""}.so-icon.so--editors-comment:after{content:""}.so-icon.so--slide-left:after{content:""}.so-icon.so--slide-right:after{content:""}.so-icon.so--citation:after{content:""}.so-icon.so--tier-1:after{content:""}.so-icon.so--tier-2:after{content:""}.so-icon.so--tier-3:after{content:""}.so-icon.so--user:after{content:""}.so-icon.so--document:after{content:""}.so-icon.so--orcid.so--colored.so--colored.so--colored{color:#a6ce39}.so-icon.so--orcid.so--light-colored.so--light-colored.so--light-colored{color:#dbebb0}.so-icon.so--orcid:after{content:""}.so-icon.so--linkedin.so--colored.so--colored.so--colored{color:#0077b5}.so-icon.so--linkedin.so--light-colored.so--light-colored.so--light-colored{color:#99c9e1}.so-icon.so--linkedin:after{content:""}.so-icon.so--mendeley.so--colored.so--colored.so--colored{color:#a71925}.so-icon.so--mendeley.so--light-colored.so--light-colored.so--light-colored{color:#dca3a8}.so-icon.so--mendeley:after{content:""}.so-icon.so--twitter.so--colored.so--colored.so--colored{color:#55acee}.so-icon.so--twitter.so--light-colored.so--light-colored.so--light-colored{color:#bbdef8}.so-icon.so--twitter:after{content:""}.so-icon.so--facebook.so--colored.so--colored.so--colored{color:#3b579d}.so-icon.so--facebook.so--light-colored.so--light-colored.so--light-colored{color:#b1bcd8}.so-icon.so--facebook:after{content:""}.so-icon.so--open-access.so--colored.so--colored.so--colored{color:#e97202}.so-icon.so--open-access.so--light-colored.so--light-colored.so--light-colored{color:#f6c79a}.so-icon.so--open-access:after{content:""}.so-icon.so--quote:after{content:""}.so-icon.so--youtube.so--colored.so--colored.so--colored{color:#bf0000}.so-icon.so--youtube.so--light-colored.so--light-colored.so--light-colored{color:#e59999}.so-icon.so--youtube:after{content:""}.so-icon.so--google-plus.so--colored.so--colored.so--colored{color:#e53838}.so-icon.so--google-plus.so--light-colored.so--light-colored.so--light-colored{color:#f5afaf}.so-icon.so--google-plus:after{content:""}.so-icon.so--add-to-collection:after{content:""}.so-icon.so--remove-from-collection:after{content:""}.so-icon.so--so.so--colored.so--colored.so--colored{color:#92d050}.so-icon.so--so.so--light-colored.so--light-colored.so--light-colored{color:#d3ecb9}.so-icon.so--so:after{content:""}.so-icon.so--statistics:after{content:""}.so-icon.so--summary:after{content:""}.so-icon.so--thumbnail:after{content:""}.so-icon.so--disciplines:after{content:""}.so-icon.so--references:after{content:""}.so-icon.so--check:after{content:""}.so-icon.so--orcid-sync.so--colored.so--colored.so--colored{color:#8f5389}.so-icon.so--orcid-sync.so--light-colored.so--light-colored.so--light-colored{color:#d2bad0}.so-icon.so--orcid-sync:after{content:""}.so-icon.so--keywords:after{content:""}.so-icon.so--orcid-update-permissions.so--colored.so--colored.so--colored{color:#ffb027}.so-icon.so--orcid-update-permissions.so--light-colored.so--light-colored.so--light-colored{color:#ffdfa9}.so-icon.so--orcid-update-permissions:after{content:""}.so-icon.so--advanced-search:after{content:""}.so-icon.so--info:after{content:""}.so-icon.so--hint:after{content:""}.so-icon.so--wechat.so--colored.so--colored.so--colored{color:#51b548}.so-icon.so--wechat.so--light-colored.so--light-colored.so--light-colored{color:#b9e1b6}.so-icon.so--wechat:after{content:""}.so-icon.so--article:after{content:""}.so-icon.so--poster:after{content:""}.so-icon.so--review:after{content:""}.so-icon.so--observation:after{content:""}.so-icon.so--version:after{content:""}.so-icon.so--thermometer:after{content:""}.so-icon.so--instagram:after{content:""}.so-icon.so--buy:after{content:""}.so-icon.so--weibo.so--colored.so--colored.so--colored{color:#e6162d}.so-icon.so--weibo.so--light-colored.so--light-colored.so--light-colored{color:#f5a2ab}.so-icon.so--weibo:after{content:""}.so-icon.so--angle-down:after{content:""}.so-icon.so--menu-2:after{content:""}.so-icon.so--copy:after{content:""}.so-icon.so--download:after{content:""}.so-icon.so--plus:after{content:""}.so-icon.so--error:after{content:""}.so-icon.so--cross-circled:after{content:""}.so-icon.so--plus-circled:after{content:""}.so-icon.so--logo{position:relative;font-size:32px;width:200px;vertical-align:50%}@media(min-width: 576px){.so-icon.so--logo{font-size:43px;width:265px;vertical-align:30%}}.so-icon.so--logo .so-logo-dark,.so-icon.so--logo .so-logo-light{position:absolute;top:0;left:0}.so-icon.so--logo .so-logo-green:before{content:"";color:#92d050}.so-icon.so--logo .so-logo-dark:before{content:"";color:#7e7e7e}.so-icon.so--logo .so-logo-light:before{content:"";color:#a6a6a6}.so-icon.so--logo.so--in-footer,.so-icon.so--logo.so--in-powered-by{font-size:32px;width:200px;vertical-align:50%}@media(min-width: 1200px){.so-icon.so--logo.so--in-footer,.so-icon.so--logo.so--in-powered-by{font-size:43px;width:265px;vertical-align:30%}}.so-icon.so--logo.so--tiny{font-size:21.5px;width:132.5px;vertical-align:baseline}.so-icon.so--sized{font-size:inherit}.so-icon.so--menu-2{font-size:20px;color:#4998aa}.so-icon-teal-4{color:#4998aa}.so-icon-red-5{color:#bf0000}.so-secondary{font-family:"Segoe UI",Tahoma,sans-serif;font-size:12px;line-height:18px;color:#7e7e7e}.so-secondary a,.so-secondary button{color:#206570}.so-secondary strong{color:#2b2b2b}.so-article-header{margin:0 0 20px}.so-article-header-text{display:block;overflow:auto}.so-article-header-title .so-article-trans-title{color:#7e7e7e;font-size:24px;line-height:34px;margin:0 0 10px}.so-article-header-info{margin:4px 0}.so-article-image{float:right;margin:0 0 20px 5px}.so-article-trans-title{display:block;margin-top:5px;font-style:italic}.so-table-wrapper{overflow:auto}.so-table{border-collapse:collapse;border-spacing:0;width:100%;overflow-wrap:normal}.so-table>*>tr>*{background:#fff;border:1px solid #d6d6d6;padding:0 2px;white-space:nowrap}.so-table>*>tr>*.so-table-col-share-1,.so-table>*>tr>*.so-table-col-share-2,.so-table>*>tr>*.so-table-col-share-3,.so-table>*>tr>*.so-table-col-share-4,.so-table>*>tr>*.so-table-col-share-5,.so-table>*>tr>*.so-table-col-share-6,.so-table>*>tr>*.so-table-col-share-7,.so-table>*>tr>*.so-table-col-share-8,.so-table>*>tr>*.so-table-col-share-9,.so-table>*>tr>*.so-table-col-share-10,.so-table>*>tr>*.so-table-col-may-wrap{white-space:normal}.so-table>*>tr>*.so-table-col-share-1{width:100%}.so-table>*>tr>*.so-table-col-share-2{width:50%}.so-table>*>tr>*.so-table-col-share-3{width:34%}.so-table>*>tr>*.so-table-col-share-3~.so-table-col-share-3{width:33%}.so-table>*>tr>*.so-table-col-share-4{width:25%}.so-table>*>tr>*.so-table-col-share-5{width:20%}.so-table>*>tr>*.so-table-col-share-6{width:16%}.so-table>*>tr>*.so-table-col-share-6~.so-table-col-share-6~.so-table-col-share-6{width:17%}.so-table>*>tr>*.so-table-col-share-7{width:15%}.so-table>*>tr>*.so-table-col-share-7~.so-table-col-share-7~.so-table-col-share-7{width:14%}.so-table>*>tr>*.so-table-col-share-8{width:12.5%}.so-table>*>tr>*.so-table-col-share-9{width:12%}.so-table>*>tr>*.so-table-col-share-9~.so-table-col-share-9{width:11%}.so-table>*>tr>*.so-table-col-share-10{width:10%}.so-table.so--borderless>*>tr>*{background:transparent;border:0;padding:0 5px 5px 0}.so-table.so--borderless>*>tr>*:last-child{padding-right:0}.so-table>*>tr>th:not(.so-ta-c){text-align:left}.so-table>*>tr>th{padding-bottom:3px;background:#e5f2d1;box-shadow:inset 0 0 0 1px #fff}.so-table .so-table-insert{border:3px solid #f0f0f0;border-left:0;border-right:0;margin:0 -2px;padding:0 20px}.so-table.so--large>*>tr>*{padding:2px 5px 4px}.so-table.so--large .so-table-insert{margin:-2px -5px -4px}.so-table.so--may-wrap>*>tr>*{white-space:normal}.so-table.so--body-no-v-border>tbody>tr>*:not(:first-child){border-left-width:0}.so-table.so--body-no-v-border>tbody>tr>*:not(:last-child){border-right-width:0}.so-table.so--ledger>tbody>tr:nth-child(even)>*{background-color:#fafafa}.so-table>thead{vertical-align:bottom}.so-table>tbody{vertical-align:baseline}.so-table>tfoot{font-weight:bold}.so-table.so--spacious{border-spacing:0;margin-bottom:10px}.so-table.so--spacious>*>tr>td:first-child{text-align:left}.so-table.so--spacious>*>tr>*{border:0;padding:5px 10px;white-space:normal;text-align:right}.so-table.so--spacious>thead>tr>th:first-child{width:20%}.so-table.so--spacious>thead *{text-align:left;width:13%;vertical-align:middle}.so-table-header-button.so-table-header-button.so-table-header-button{cursor:pointer;color:#0e3e46;background:linear-gradient(to bottom, white, #e5f2d1)}.so-table-header-button.so-table-header-button.so-table-header-button:hover{background:linear-gradient(to bottom, white, #f5fceb)}.so-table-header-button.so-table-header-button.so-table-header-button:active{background:linear-gradient(to bottom, #c1e58f, #e5f2d1)}.so-table-header-button.so-table-header-button.so-table-header-button:focus{outline:0;box-shadow:inset 0 0 0 1px #206570}.so-selected-row>td{background:#d3d3d3}.so-tiers{line-height:18px}.so-tiers>*{display:inline-block;vertical-align:top;margin-right:1px;padding:0 10px 1px;color:#fff;font-size:10px;line-height:18px;font-weight:bold;text-transform:uppercase;position:relative}.so-tiers>*:first-child{background:#92d050}.so-tiers>*:first-child+*{background:#6ca028}.so-tiers>*:first-child+*+*{background:#4c7014}.so-tiers .so--disabled:not(#__never__){background:#d6d6d6}.so-tiers{line-height:18px}.so-tiers>*{display:inline-block;vertical-align:top;margin-right:1px;padding:0 10px 1px;color:#fff;font-size:10px;line-height:18px;font-weight:bold;text-transform:uppercase;position:relative}.so-tiers>*:first-child{background:#92d050}.so-tiers>*:first-child+*{background:#6ca028}.so-tiers>*:first-child+*+*{background:#4c7014}.so-tiers.so--review>*:first-child{background:#6d331f}.so-tiers.so--book>*:first-child{background:#4998aa}.so-tiers.so--book>*:first-child+*{background:#206570}.so-tiers.so--book>*:first-child+*+*{background:#0e3e46}.so-tiers.so--2>*:first-child+*+*{background:#d6d6d6}.so-tiers.so--3>*:first-child~*{background:#d6d6d6}.so-tiers.so--4>*{background:#d6d6d6}.so-tiers .so--disabled{background:#d6d6d6}.so-tiers-open-access{color:#e97202;margin-left:5px;vertical-align:1px}.so-metadata-label{color:#7e7e7e}.so-svg-container{background-color:#fff;position:relative;height:0;padding-bottom:43.3333333333%;width:100%}.so-svg-container.so--contextual{padding-bottom:36%}.so-statistics-caption{color:#7e7e7e;font-size:12px;font-style:italic;line-height:18px;margin-top:10px;text-align:center}.so-statistics-caption .so-statistics-text{margin-left:20px}.so-statistics-caption .so-statistics-text:first-child{margin:0}.so-statistics-cirlce{border-radius:100%;display:inline-block;height:9px;margin-right:5px;width:9px}@media print{.so-statistics-cirlce{display:none}}.so-statistics-cirlce.so--green{background-color:#92d050}.so-statistics-cirlce.so--teal{background-color:#4998aa}.so-statistics-cirlce.so--orange{background-color:#ffa836}.so-statistics-cirlce.so--rust{background-color:#af2500}.so-quarterly-statistics-wrapper{width:768px}.so-quarterly-chart{border:solid 1px #a6a6a6;margin:40px 0;padding:20px;page-break-inside:avoid}.so-progress-container{padding:20px 0 30px;position:relative;width:90%}.so-quarterly-chart-divider{border-right:solid 1px #d6d6d6;bottom:10px;position:absolute;top:40px;z-index:0}.so-quarterly-chart-divider-label{bottom:0;color:#7e7e7e;position:absolute;right:5px}.so-progress-group{margin-bottom:10px;page-break-inside:avoid;position:relative;z-index:1}.so-progress-collection{background-color:#fff}.so-progress-bar-inner-svg.so--green{fill:#92d050}.so-progress-bar-inner-svg.so--teal{fill:#4998aa}.so-progress-bar-inner-svg.so--orange{fill:#ffa836}.so-progress-bar-inner-svg.so--rust{fill:#af2500}.so-quarterly-statistics-circle.so--green{fill:#92d050}.so-quarterly-statistics-circle.so--teal{fill:#4998aa}.so-quarterly-statistics-circle.so--orange{fill:#ffa836}.so-quarterly-statistics-circle.so--rust{fill:#af2500}.so-progress-bar-label{background-color:#fff;color:#7e7e7e;line-height:14px;margin-left:5px;padding:1px;position:absolute}.so-cellux-container{position:relative;overflow:hidden;padding-left:40px}.so-cellux{position:absolute;top:0;left:0}.so-cellux.so--vertical{bottom:20px;width:30px}.so-cellux.so--horizontal{right:0;height:30px}.so-row-cropper.so--crop-cols{margin-left:-10px;margin-right:-10px}.so-row>*{margin:0}.so-row:not(.so--vertical)>*{display:inline-block;vertical-align:top}.so-row:not(.so--vertical).so--distance-x-1{margin-left:-1px}.so-row:not(.so--vertical).so--distance-x-1>*{margin-left:1px}.so-row:not(.so--vertical).so--distance-y-1{margin-top:-1px}.so-row:not(.so--vertical).so--distance-y-1>*{margin-top:1px}.so-row:not(.so--vertical).so--distance-x-5{margin-left:-5px}.so-row:not(.so--vertical).so--distance-x-5>*{margin-left:5px}.so-row:not(.so--vertical).so--distance-y-5{margin-top:-5px}.so-row:not(.so--vertical).so--distance-y-5>*{margin-top:5px}.so-row:not(.so--vertical).so--distance-x-10{margin-left:-10px}.so-row:not(.so--vertical).so--distance-x-10>*{margin-left:10px}.so-row:not(.so--vertical).so--distance-y-10{margin-top:-10px}.so-row:not(.so--vertical).so--distance-y-10>*{margin-top:10px}.so-row:not(.so--vertical).so--distance-x-15{margin-left:-15px}.so-row:not(.so--vertical).so--distance-x-15>*{margin-left:15px}.so-row:not(.so--vertical).so--distance-y-15{margin-top:-15px}.so-row:not(.so--vertical).so--distance-y-15>*{margin-top:15px}.so-row:not(.so--vertical).so--distance-x-20{margin-left:-20px}.so-row:not(.so--vertical).so--distance-x-20>*{margin-left:20px}.so-row:not(.so--vertical).so--distance-y-20{margin-top:-20px}.so-row:not(.so--vertical).so--distance-y-20>*{margin-top:20px}.so-row:not(.so--vertical).so--distance-x-40{margin-left:-40px}.so-row:not(.so--vertical).so--distance-x-40>*{margin-left:40px}.so-row:not(.so--vertical).so--distance-y-40{margin-top:-40px}.so-row:not(.so--vertical).so--distance-y-40>*{margin-top:40px}.so-row:not(.so--vertical).so--match-height{display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;-ms-flex-line-pack:stretch;align-content:flex-start}.so-row.so--vertical>*{display:block;width:100%}.so-row.so--vertical.so--distance-y-1>*+*{margin-top:1px}.so-row.so--vertical.so--distance-y-5>*+*{margin-top:5px}.so-row.so--vertical.so--distance-y-10>*+*{margin-top:10px}.so-row.so--vertical.so--distance-y-15>*+*{margin-top:15px}.so-row.so--vertical.so--distance-y-20>*+*{margin-top:20px}.so-row.so--vertical.so--distance-y-40>*+*{margin-top:40px}.so-alt-sup{position:relative;vertical-align:baseline;line-height:0;font-size:100%;font-weight:600;top:-0.3em}.so-toc-table{width:100%}.so-toc-table>*>tr>*:last-child{width:0;text-align:right;line-height:26px;overflow-wrap:normal}.so-toc-table>tbody>tr+tr>*{border-top:1px solid #d6d6d6}.so-lay-summary-container{margin-bottom:20px}.so-lay-summary-header{overflow:hidden;clear:both;border-top:0 solid #d6d6d6;border-bottom:1px solid #d6d6d6;margin-bottom:10px;background-color:#92d050;border:none;border-radius:3px 24px 0 0;margin:0;padding:10px}@media(min-width: 576px){.so-lay-summary-header{border-radius:3px 0 0 24px;display:table-cell;vertical-align:baseline}}.so-lay-summary-title{display:block;font-family:"Segoe UI",Tahoma,sans-serif;font-size:14px;line-height:20px;font-weight:bold;font-style:italic;margin:0 0 10px;color:#fff;white-space:nowrap}.so-lay-summary-body{border:solid 1px #d6d6d6;border-top:none;border-radius:0 0 3px 3px;margin:0;padding:10px}@media(min-width: 576px){.so-lay-summary-body{border:solid 1px #d6d6d6;border-left:none;border-radius:0 3px 3px 0;display:table-cell;padding:20px 40px;width:100%}}.so-lay-summary-body p{text-align:justify}.so-info-entry{margin:4px 0}.so-info-entry:last-child,.so-info-entry:last-of-type{margin-bottom:10px}.so-info-entry+h6{margin-top:10px}.so-info-main-title{font-weight:400}.so-ta-l{text-align:left}.so-ta-c{text-align:center}.so-ta-r{text-align:right}.so-f-l{float:left}.so-f-r{float:right}.so-o-a{overflow:auto}.so-o-h{overflow:hidden}.so-c-l{clear:left}.so-c-r{clear:right}.so-c-b{clear:both}.so-w-full{width:100%}.so-va-b{vertical-align:bottom}.so-va-t{vertical-align:top}.so-va-m,.so-table>*>tr.so-va-m>*{vertical-align:middle}.so-va-bl{vertical-align:baseline}.so-relative{position:relative}.so-block{display:block}.so-block-centered{display:block;margin-left:auto;margin-right:auto}.so-ib{display:inline-block}.so-sr{position:absolute;overflow:hidden;width:0;height:0}.so-color-dark-blue{color:#206570}.so-color-darker-green{color:#4c7014}.so-color-green-4{color:#92d050}.so-color-dark-gray{color:#7e7e7e}.so-color-lighter-gray{color:#d6d6d6}.so-color-light-gray{color:#a6a6a6}.so-color-red{color:#bf0000}.so-color-link-light{color:#afe8f4}.so-color-orcid-green{color:#a6ce39}.so-color-linkedin-blue{color:#0077b5}.so-color-mendeley-red{color:#a71925}.so-color-twitter-blue{color:#55acee}.so-color-facebook-blue{color:#3b579d}.so-color-black.so-color-black.so-color-black{color:#000}.so-color-orange-4{color:#ffa836}.so-m-0.so-m-0.so-m-0{margin:0px}.so-m-y-0.so-m-y-0.so-m-y-0{margin-top:0px;margin-bottom:0px}.so-m-x-0.so-m-x-0.so-m-x-0{margin-left:0px;margin-right:0px}.so-m-t-0.so-m-t-0.so-m-t-0{margin-top:0px}.so-m-b-0.so-m-b-0.so-m-b-0{margin-bottom:0px}.so-m-l-0.so-m-l-0.so-m-l-0{margin-left:0px}.so-m-r-0.so-m-r-0.so-m-r-0{margin-right:0px}.so-m-1.so-m-1.so-m-1{margin:1px}.so-m-y-1.so-m-y-1.so-m-y-1{margin-top:1px;margin-bottom:1px}.so-m-x-1.so-m-x-1.so-m-x-1{margin-left:1px;margin-right:1px}.so-m-t-1.so-m-t-1.so-m-t-1{margin-top:1px}.so-m-b-1.so-m-b-1.so-m-b-1{margin-bottom:1px}.so-m-l-1.so-m-l-1.so-m-l-1{margin-left:1px}.so-m-r-1.so-m-r-1.so-m-r-1{margin-right:1px}.so-m-2.so-m-2.so-m-2{margin:2px}.so-m-y-2.so-m-y-2.so-m-y-2{margin-top:2px;margin-bottom:2px}.so-m-x-2.so-m-x-2.so-m-x-2{margin-left:2px;margin-right:2px}.so-m-t-2.so-m-t-2.so-m-t-2{margin-top:2px}.so-m-b-2.so-m-b-2.so-m-b-2{margin-bottom:2px}.so-m-l-2.so-m-l-2.so-m-l-2{margin-left:2px}.so-m-r-2.so-m-r-2.so-m-r-2{margin-right:2px}.so-m-5.so-m-5.so-m-5{margin:5px}.so-m-y-5.so-m-y-5.so-m-y-5{margin-top:5px;margin-bottom:5px}.so-m-x-5.so-m-x-5.so-m-x-5{margin-left:5px;margin-right:5px}.so-m-t-5.so-m-t-5.so-m-t-5{margin-top:5px}.so-m-b-5.so-m-b-5.so-m-b-5{margin-bottom:5px}.so-m-l-5.so-m-l-5.so-m-l-5{margin-left:5px}.so-m-r-5.so-m-r-5.so-m-r-5{margin-right:5px}.so-m-10.so-m-10.so-m-10{margin:10px}.so-m-y-10.so-m-y-10.so-m-y-10{margin-top:10px;margin-bottom:10px}.so-m-x-10.so-m-x-10.so-m-x-10{margin-left:10px;margin-right:10px}.so-m-t-10.so-m-t-10.so-m-t-10{margin-top:10px}.so-m-b-10.so-m-b-10.so-m-b-10{margin-bottom:10px}.so-m-l-10.so-m-l-10.so-m-l-10{margin-left:10px}.so-m-r-10.so-m-r-10.so-m-r-10{margin-right:10px}.so-m-15.so-m-15.so-m-15{margin:15px}.so-m-y-15.so-m-y-15.so-m-y-15{margin-top:15px;margin-bottom:15px}.so-m-x-15.so-m-x-15.so-m-x-15{margin-left:15px;margin-right:15px}.so-m-t-15.so-m-t-15.so-m-t-15{margin-top:15px}.so-m-b-15.so-m-b-15.so-m-b-15{margin-bottom:15px}.so-m-l-15.so-m-l-15.so-m-l-15{margin-left:15px}.so-m-r-15.so-m-r-15.so-m-r-15{margin-right:15px}.so-m-20.so-m-20.so-m-20{margin:20px}.so-m-y-20.so-m-y-20.so-m-y-20{margin-top:20px;margin-bottom:20px}.so-m-x-20.so-m-x-20.so-m-x-20{margin-left:20px;margin-right:20px}.so-m-t-20.so-m-t-20.so-m-t-20{margin-top:20px}.so-m-b-20.so-m-b-20.so-m-b-20{margin-bottom:20px}.so-m-l-20.so-m-l-20.so-m-l-20{margin-left:20px}.so-m-r-20.so-m-r-20.so-m-r-20{margin-right:20px}.so-m-30.so-m-30.so-m-30{margin:30px}.so-m-y-30.so-m-y-30.so-m-y-30{margin-top:30px;margin-bottom:30px}.so-m-x-30.so-m-x-30.so-m-x-30{margin-left:30px;margin-right:30px}.so-m-t-30.so-m-t-30.so-m-t-30{margin-top:30px}.so-m-b-30.so-m-b-30.so-m-b-30{margin-bottom:30px}.so-m-l-30.so-m-l-30.so-m-l-30{margin-left:30px}.so-m-r-30.so-m-r-30.so-m-r-30{margin-right:30px}.so-m-40.so-m-40.so-m-40{margin:40px}.so-m-y-40.so-m-y-40.so-m-y-40{margin-top:40px;margin-bottom:40px}.so-m-x-40.so-m-x-40.so-m-x-40{margin-left:40px;margin-right:40px}.so-m-t-40.so-m-t-40.so-m-t-40{margin-top:40px}.so-m-b-40.so-m-b-40.so-m-b-40{margin-bottom:40px}.so-m-l-40.so-m-l-40.so-m-l-40{margin-left:40px}.so-m-r-40.so-m-r-40.so-m-r-40{margin-right:40px}.so-m--20.so-m--20.so-m--20{margin:-20px}.so-m-y--20.so-m-y--20.so-m-y--20{margin-top:-20px;margin-bottom:-20px}.so-m-x--20.so-m-x--20.so-m-x--20{margin-left:-20px;margin-right:-20px}.so-m-t--20.so-m-t--20.so-m-t--20{margin-top:-20px}.so-m-b--20.so-m-b--20.so-m-b--20{margin-bottom:-20px}.so-m-l--20.so-m-l--20.so-m-l--20{margin-left:-20px}.so-m-r--20.so-m-r--20.so-m-r--20{margin-right:-20px}.so-m--10.so-m--10.so-m--10{margin:-10px}.so-m-y--10.so-m-y--10.so-m-y--10{margin-top:-10px;margin-bottom:-10px}.so-m-x--10.so-m-x--10.so-m-x--10{margin-left:-10px;margin-right:-10px}.so-m-t--10.so-m-t--10.so-m-t--10{margin-top:-10px}.so-m-b--10.so-m-b--10.so-m-b--10{margin-bottom:-10px}.so-m-l--10.so-m-l--10.so-m-l--10{margin-left:-10px}.so-m-r--10.so-m-r--10.so-m-r--10{margin-right:-10px}.so-m--5.so-m--5.so-m--5{margin:-5px}.so-m-y--5.so-m-y--5.so-m-y--5{margin-top:-5px;margin-bottom:-5px}.so-m-x--5.so-m-x--5.so-m-x--5{margin-left:-5px;margin-right:-5px}.so-m-t--5.so-m-t--5.so-m-t--5{margin-top:-5px}.so-m-b--5.so-m-b--5.so-m-b--5{margin-bottom:-5px}.so-m-l--5.so-m-l--5.so-m-l--5{margin-left:-5px}.so-m-r--5.so-m-r--5.so-m-r--5{margin-right:-5px}.so-p-0{padding:0px}.so-p-y-0{padding-top:0px;padding-bottom:0px}.so-p-x-0{padding-left:0px;padding-right:0px}.so-p-t-0{padding-top:0px}.so-p-b-0{padding-bottom:0px}.so-p-l-0{padding-left:0px}.so-p-r-0{padding-right:0px}.so-p-1{padding:1px}.so-p-y-1{padding-top:1px;padding-bottom:1px}.so-p-x-1{padding-left:1px;padding-right:1px}.so-p-t-1{padding-top:1px}.so-p-b-1{padding-bottom:1px}.so-p-l-1{padding-left:1px}.so-p-r-1{padding-right:1px}.so-p-5{padding:5px}.so-p-y-5{padding-top:5px;padding-bottom:5px}.so-p-x-5{padding-left:5px;padding-right:5px}.so-p-t-5{padding-top:5px}.so-p-b-5{padding-bottom:5px}.so-p-l-5{padding-left:5px}.so-p-r-5{padding-right:5px}.so-p-10{padding:10px}.so-p-y-10{padding-top:10px;padding-bottom:10px}.so-p-x-10{padding-left:10px;padding-right:10px}.so-p-t-10{padding-top:10px}.so-p-b-10{padding-bottom:10px}.so-p-l-10{padding-left:10px}.so-p-r-10{padding-right:10px}.so-p-15{padding:15px}.so-p-y-15{padding-top:15px;padding-bottom:15px}.so-p-x-15{padding-left:15px;padding-right:15px}.so-p-t-15{padding-top:15px}.so-p-b-15{padding-bottom:15px}.so-p-l-15{padding-left:15px}.so-p-r-15{padding-right:15px}.so-p-20{padding:20px}.so-p-y-20{padding-top:20px;padding-bottom:20px}.so-p-x-20{padding-left:20px;padding-right:20px}.so-p-t-20{padding-top:20px}.so-p-b-20{padding-bottom:20px}.so-p-l-20{padding-left:20px}.so-p-r-20{padding-right:20px}.so-p-40{padding:40px}.so-p-y-40{padding-top:40px;padding-bottom:40px}.so-p-x-40{padding-left:40px;padding-right:40px}.so-p-t-40{padding-top:40px}.so-p-b-40{padding-bottom:40px}.so-p-l-40{padding-left:40px}.so-p-r-40{padding-right:40px}.so-lh-1{line-height:1}.so-lh-n{line-height:20px}.so-lh-i{line-height:16px}.so-dy-a-n:not(#__NEVER__){display:none}.so-dy-a-i:not(#__NEVER__){display:inline}.so-dy-a-b:not(#__NEVER__){display:block}.so-dy-a-ib:not(#__NEVER__){display:inline-block}.so-dy-a-if:not(#__NEVER__){display:inline-flex}@media(min-width: 576px){.so-dy-b-n:not(#__NEVER__){display:none}.so-dy-b-i:not(#__NEVER__){display:inline}.so-dy-b-b:not(#__NEVER__){display:block}.so-dy-b-ib:not(#__NEVER__){display:inline-block}.so-dy-b-if:not(#__NEVER__){display:inline-flex}}@media(min-width: 720px){.so-dy-c-n:not(#__NEVER__){display:none}.so-dy-c-i:not(#__NEVER__){display:inline}.so-dy-c-b:not(#__NEVER__){display:block}.so-dy-c-ib:not(#__NEVER__){display:inline-block}.so-dy-c-if:not(#__NEVER__){display:inline-flex}}@media(min-width: 1014px){.so-dy-d-n:not(#__NEVER__){display:none}.so-dy-d-i:not(#__NEVER__){display:inline}.so-dy-d-b:not(#__NEVER__){display:block}.so-dy-d-ib:not(#__NEVER__){display:inline-block}.so-dy-d-if:not(#__NEVER__){display:inline-flex}}@media(min-width: 1200px){.so-dy-e-n:not(#__NEVER__){display:none}.so-dy-e-i:not(#__NEVER__){display:inline}.so-dy-e-b:not(#__NEVER__){display:block}.so-dy-e-ib:not(#__NEVER__){display:inline-block}.so-dy-e-if:not(#__NEVER__){display:inline-flex}}@media(min-width: 1400px){.so-dy-f-n:not(#__NEVER__){display:none}.so-dy-f-i:not(#__NEVER__){display:inline}.so-dy-f-b:not(#__NEVER__){display:block}.so-dy-f-ib:not(#__NEVER__){display:inline-block}.so-dy-f-if:not(#__NEVER__){display:inline-flex}}.so-n.so-n{display:none}.so-v-h{visibility:hidden}.so-none{display:none}.so-collapse{overflow:hidden;height:0}.so-monospace:not(#_){font-family:monospace}input,button,.so-b3-container,.so-b3,.so-toc2,.so-debug-label{display:none}.so-header-button-home-link{display:inline-block}.so-main-header{border-bottom:1px solid #d6d6d6;margin-bottom:20px}.so-main-section{margin-bottom:20px}.so-main-footer{padding-top:20px;border-top:1px solid #d6d6d6}.so-print-n{display:none}.so-tiers>*{color:#000}.so-tiers>*:after{content:"";margin-left:4px}.so-tiers.so--2>*:first-child:after{content:""}.so-tiers.so--3>*:first-child~*:after,.so-tiers.so--4>*:first-child~*:after{content:""}.so-tiers .so--disabled:after{content:""}