/* base */
:root{--ink:#202322;--gray:#5b615e;--line:#dce0dc;--orange:#ffad64;--pale:#f3f5f2}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:white;font:17px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:5px}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.3;margin-top:0;letter-spacing:-.02em}p{margin-top:0}h1{font-size:43px}h2{font-size:29px}h3{font-size:22px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #ac5100;outline-offset:5px}.xl-skip{position:absolute;top:-100px;left:10px;background:#fff;padding:10px;z-index:5}.xl-skip:focus{top:5px}.xl-label{font-size:12px;letter-spacing:.13em;font-weight:700;margin-bottom:15px}
/* homepage layout */
.xl-header{max-width:1200px;margin:auto;padding:24px 42px;display:flex;justify-content:space-between;align-items:center;gap:24px}.xl-name{font-size:26px;font-weight:800;text-decoration:none}.xl-header nav{display:flex;gap:28px;font-size:14px}.xl-header nav a{text-decoration:none}.xl-menu{display:none}.xl-banner{background:var(--ink);color:white}.xl-banner-inner{max-width:1200px;margin:auto;padding:51px 42px 46px}.xl-banner .xl-label{color:var(--orange)}.xl-banner h1{font-size:56px;margin-bottom:24px}.xl-banner-inner>p:last-child{max-width:740px;color:#d7dcd9;font-size:18px;margin-bottom:0}.xl-wrap{max-width:1200px;margin:auto;padding:0 42px}.xl-task-row{display:flex;align-items:center;justify-content:space-between;gap:45px;padding:38px 0;border-bottom:1px solid var(--line)}.xl-task-row>div{max-width:700px}.xl-task-row h2{margin-bottom:13px}.xl-task-row p:last-child{font-size:16px;color:var(--gray);margin:0}.xl-task-row .xl-label{color:#7f410b;margin-bottom:10px}.xl-button{flex-shrink:0;padding:13px 22px;border:1px solid var(--ink);background:var(--orange);font-size:14px;font-weight:700;text-decoration:none}.xl-button-light{background:white}.xl-fit{padding:44px 0;display:grid;grid-template-columns:1fr 1.6fr;gap:48px}.xl-fit-title p:last-child{color:var(--gray);font-size:16px}.xl-table-wrap{min-width:0}table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.65;table-layout:fixed}caption{text-align:left;font-weight:700;padding:0 0 15px}th,td{text-align:left;padding:14px 12px;vertical-align:top;border-bottom:1px solid var(--line)}thead{background:var(--pale)}th:first-child{width:24%}.xl-breakpoint{background:var(--orange);padding:30px 35px;display:grid;grid-template-columns:1fr 1.5fr;gap:10px 35px}.xl-breakpoint h2{grid-row:span 2;font-size:28px;margin:0}.xl-breakpoint p{font-size:16px;margin:0}.xl-breakpoint a{font-size:14px;font-weight:700}.xl-guides{margin:45px 0}.xl-guide{display:block;padding:25px 0;border-bottom:1px solid var(--line);text-decoration:none}.xl-guide h3{margin-bottom:10px}.xl-guide p{color:var(--gray);font-size:16px;max-width:760px;margin-bottom:12px}.xl-guide span{font-size:13px;font-weight:700}.xl-questions{padding:0 0 50px}.xl-questions details{padding:17px 0;border-top:1px solid var(--line)}.xl-questions summary{cursor:pointer;font-weight:600}.xl-questions p{margin:15px 0 0;font-size:16px}.xl-footer{background:var(--pale);padding:32px max(42px,calc((100vw - 1116px)/2));display:flex;justify-content:space-between;gap:35px;font-size:13px}.xl-footer strong{font-size:23px}.xl-footer p{margin:8px 0 0;color:var(--gray)}.xl-footer nav{display:flex;gap:23px;flex-wrap:wrap;align-content:start}
/* documents */
.xl-reader{max-width:850px;margin:auto;padding:46px 34px 65px;min-height:65vh}.xl-crumb{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;margin-bottom:34px}.xl-article-header{border-bottom:4px solid var(--orange);padding-bottom:23px;margin-bottom:28px}.xl-article-header h1{font-size:37px}.xl-article-header time{font-size:13px;color:var(--gray)}.xl-lead{font-size:20px;font-weight:500;line-height:1.8}.xl-body h2{font-size:27px;margin-top:35px}.xl-body p,.xl-body li{overflow-wrap:anywhere}.xl-body ol,.xl-body ul{padding-left:25px}.xl-body li{margin-bottom:15px;padding-left:5px}.xl-source{font-size:13px;color:var(--gray);border-top:1px solid var(--line);padding-top:20px;margin-top:35px}.xl-failure{margin:25px 0}.xl-failure>div{padding:18px 0;border-bottom:1px solid var(--line)}.xl-failure dt{font-weight:700}.xl-failure dd{margin:8px 0 0;color:var(--gray)}
/* responsive */
@media(max-width:760px){.xl-header{padding:18px 23px;flex-wrap:wrap;gap:12px}.xl-name{font-size:24px}.xl-menu{display:block;border:1px solid var(--ink);background:white;min-height:44px;padding:8px 13px}.xl-header nav{display:none;flex-basis:100%;flex-direction:column;gap:0}.xl-header nav[data-open]{display:flex}.xl-header nav a,.xl-header nav span{padding:11px 0}.xl-banner-inner{padding:34px 23px}.xl-banner h1{font-size:36px}.xl-banner-inner>p:last-child{font-size:17px}.xl-wrap{padding:0 23px}.xl-task-row{display:block;padding:29px 0}.xl-task-row h2{font-size:26px}.xl-button{display:inline-block;margin-top:20px}.xl-fit{display:block;padding:32px 0}.xl-fit-title{margin-bottom:22px}.xl-table-wrap table{font-size:13px}th,td{padding:12px 7px}th:first-child{width:22%}.xl-breakpoint{display:block;padding:25px 22px}.xl-breakpoint h2{font-size:26px;margin-bottom:17px}.xl-breakpoint p{margin-bottom:14px}.xl-guides{margin:33px 0}.xl-guide h3{font-size:22px}.xl-questions{padding-bottom:32px}.xl-footer{display:block;padding:28px 23px}.xl-footer nav{margin-top:20px}.xl-reader{padding:32px 23px 45px}.xl-reader h1,.xl-article-header h1{font-size:31px}.xl-lead{font-size:18px}.xl-body h2{font-size:25px}.xl-crumb{gap:12px;margin-bottom:26px}h2{font-size:27px}}