@font-face{font-family:"Open Sans";src:url("fonts/open-sans-400.ttf") format("truetype");font-style:normal;font-weight:400;font-display:block}
@font-face{font-family:"Open Sans";src:url("fonts/open-sans-600.ttf") format("truetype");font-style:normal;font-weight:600;font-display:block}
@font-face{font-family:"Open Sans";src:url("fonts/open-sans-700.ttf") format("truetype");font-style:normal;font-weight:700;font-display:block}
:root{--ink:#101214;--cyan:#18b8c4;--line:#dfe2e3;--paper:#fdfdfc}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;overflow-x:hidden;background:var(--paper);color:var(--ink);font-family:"Open Sans",Arial,sans-serif;line-height:1.6}
body::before{content:"";position:fixed;z-index:-1;inset:0;opacity:.52;background-image:linear-gradient(rgba(16,18,20,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(16,18,20,.025) 1px,transparent 1px);background-size:44px 44px}
.article-header{height:104px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(44px,10vw,144px) 0 clamp(22px,5vw,72px);border-bottom:1px solid var(--line);background:rgba(255,255,255,.94)}
.article-brand{display:flex;align-items:center;gap:9px;color:var(--ink);text-decoration:none;font:600 14px/1.2 "Open Sans",Arial,sans-serif;letter-spacing:.5px}
.article-brand span{color:var(--cyan)}
.article-brand i{display:block;width:36px;height:4px;margin-left:6px;background:var(--cyan)}
.article-back{color:#555b5e;text-decoration:none;font:600 11px/1.25 "Open Sans",Arial,sans-serif;letter-spacing:.8px}
.article-back:hover{color:var(--cyan)}
.article-shell{width:min(1180px,calc(100% - 44px));margin:0 auto;display:grid;grid-template-columns:120px minmax(0,760px);gap:clamp(28px,6vw,82px);justify-content:center;padding:clamp(58px,8vw,112px) 0 96px}
.article-number{padding-top:9px;border-top:1px solid var(--ink);font:600 9px/1.7 "Open Sans",Arial,sans-serif;letter-spacing:1px}
.article-number b{display:block;margin-top:5px;color:var(--cyan);font-size:27px;letter-spacing:0}
.article-content{min-width:0}
[hidden]{display:none!important}
.article-eyebrow{margin:0 0 20px!important;color:#168e98;font:700 10px/1.25 "Open Sans",Arial,sans-serif!important;letter-spacing:1.2px;text-transform:uppercase}
.article-content h1{max-width:780px;margin:0;font:600 clamp(36px,5vw,68px)/1.12 "Open Sans",Arial,sans-serif;letter-spacing:-.5px}
.article-rule{width:78px;height:5px;margin:34px 0 42px;background:var(--cyan)}
.article-content p{margin:0 0 24px;font-size:17px;line-height:1.72}
.article-content h2{margin:58px 0 24px;font:700 clamp(27px,3.5vw,42px)/1.18 "Open Sans",Arial,sans-serif;letter-spacing:-.4px}
.article-content h3{margin:42px 0 18px;font:600 clamp(21px,2.5vw,29px)/1.3 "Open Sans",Arial,sans-serif;letter-spacing:-.15px}
.article-content h4{margin:32px 0 14px;font:700 18px/1.4 "Open Sans",Arial,sans-serif}
.article-content h2[id],.article-content h3[id],.article-content h4[id]{scroll-margin-top:26px}
.article-content a{color:#0b7f88;text-decoration-color:rgba(11,127,136,.36);text-underline-offset:3px}
.article-content a:hover{color:var(--cyan)}
.article-content strong{font-weight:750}
.article-content ul,.article-content ol{margin:4px 0 30px;padding:0;list-style:none}
.article-content li{position:relative;margin:0;padding:8px 0 8px 24px;border-bottom:1px solid #eceeef;font-size:17px;line-height:1.45}
.article-content li::before{content:"";position:absolute;top:18px;left:2px;width:5px;height:5px;background:var(--cyan)}
.article-content ol{counter-reset:article-list}
.article-content ol>li{counter-increment:article-list;padding-left:36px}
.article-content ol>li::before{content:counter(article-list,decimal-leading-zero);top:9px;width:auto;height:auto;background:none;color:var(--cyan);font:700 10px/1.5 "Open Sans",Arial,sans-serif;letter-spacing:.4px}
.article-content li ul,.article-content li ol{margin:8px 0 0}
.article-content li li{border-bottom:0;padding-top:5px;padding-bottom:5px;font-size:15px}
.article-content blockquote{margin:34px 0;padding:22px 26px;border-left:5px solid var(--cyan);background:#fff}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content code{padding:.12em .32em;background:#edf5f5;font:85%/1.4 Consolas,"Courier New",monospace}
.article-content pre{overflow:auto;margin:30px 0;padding:22px;background:#111;color:#eef7f7}
.article-content pre code{padding:0;background:transparent;color:inherit}
.article-content table{display:block;width:100%;overflow-x:auto;margin:30px 0;border-collapse:collapse;font-size:15px;line-height:1.45}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
.article-content th{background:#edf5f5;font-weight:750}
.article-content hr{height:1px;margin:46px 0;border:0;background:var(--line)}
.toc{margin:0 0 48px;padding:24px 28px;border:1px solid var(--line);background:rgba(255,255,255,.76)}
.toc::before{content:"CONTENTS";display:block;margin-bottom:14px;color:#168e98;font:700 10px/1.25 "Open Sans",Arial,sans-serif;letter-spacing:1.2px}
.toc ul{margin:0!important}
.toc li{border:0;padding:5px 0 5px 20px;font-size:14px}
.toc li::before{top:13px;width:4px;height:4px}
.toc li li{padding-left:18px;font-size:13px}
.article-references{margin-top:72px;padding-top:1px;border-top:5px solid var(--ink)}
.article-references h2:first-child{margin-top:34px}
.article-references p,.article-references li{font-size:15px;line-height:1.58}
.article-sequence{margin:34px 0!important;padding:24px;border:1px solid var(--line);background:#fff;font-weight:600;letter-spacing:.25px}
.article-footer{display:flex;justify-content:space-between;gap:18px;margin-top:58px;padding-top:18px;border-top:1px solid var(--line);font-size:10px;letter-spacing:1px}
.article-footer a{color:var(--ink);text-decoration:none}
.article-footer a:hover{color:var(--cyan)}
.article-language{display:flex;align-items:center;gap:6px;margin-left:auto;margin-right:30px;font-size:10px}
.article-language button{appearance:none;border:0;background:transparent;padding:7px 2px;color:#a7abad;cursor:pointer;font:700 10px/1.25 "Open Sans",Arial,sans-serif}
.article-language button.active{color:var(--ink)}
.article-language span{color:#c9cccd}
@media(max-width:700px){
  .article-header{height:72px;padding:0 18px}
  .article-brand{font-size:12px}.article-brand i{width:22px;height:3px}
  .article-language{margin-right:14px}
  .article-shell{width:calc(100% - 32px);grid-template-columns:1fr;gap:28px;padding:46px 0 64px}
  .article-number{width:74px}
  .article-content h1{font-size:clamp(36px,12vw,58px)}
  .article-content p{font-size:16px}
  .article-content li{font-size:15px}
  .article-footer{flex-direction:column}
}