.dx-root{--dx-nav:240px;--dx-toc:208px;--dx-gap:48px;--dx-read:46rem;--dx-top:calc(var(--sq-header-h) + 32px);min-height:100vh}.dx-root:lang(zh-TW){font-family:var(--sq-f-tc);line-break:strict}.dx-root:lang(zh-CN){font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",var(--sq-f-latin),sans-serif;line-break:strict}.dx-root:lang(ja){line-break:strict}.dx-root:is(:lang(ja),:lang(zh-TW),:lang(zh-CN)) .dx-doc{line-height:1.85}.dx-root:lang(ko) .dx-doc :is(h1,h2,h3,p,li,dd,dt,a,span,summary){word-break:keep-all;overflow-wrap:anywhere}.dx-root code,.dx-root kbd,.dx-root pre{font-family:var(--sq-f-mono)}.dx-layout{grid-template-columns:var(--dx-nav) minmax(0,1fr) var(--dx-toc);gap:var(--dx-gap);max-width:var(--sq-max);padding:0 var(--sq-gut);margin:0 auto;display:grid}.dx-side,.dx-toc{top:var(--dx-top);max-height:calc(100vh - var(--dx-top) - 16px);overscroll-behavior:contain;scrollbar-width:thin;align-self:start;padding:0 4px 48px 0;position:sticky;overflow-y:auto}.dx-side{padding-top:4px}.dx-main{min-width:0;padding:32px 0 96px}.dx-main:focus{outline:none}.dx-doc{max-width:var(--dx-read);color:var(--sq-ink);margin:0 auto;font-size:16px;line-height:1.75}.dx-nav{gap:28px;display:grid}.dx-nav-group{gap:2px;display:grid}.dx-nav-title{color:var(--sq-ink);padding:0 12px 6px;font-size:15px;font-weight:700}.dx-nav a{border-radius:var(--sq-r-ctl);min-height:36px;color:var(--sq-ink-2);align-items:center;padding:6px 12px;font-size:15px;line-height:1.4;transition:background-color .15s,color .15s;display:flex}.dx-nav a:hover{background:var(--sq-cell);color:var(--sq-ink)}.dx-nav a[aria-current=page]{background:var(--sq-cell);color:var(--sq-ink);font-weight:650}.dx-mnav{display:none}.dx-mnav summary{border-radius:var(--sq-r-ctl);background:var(--sq-cell);min-height:44px;color:var(--sq-ink);cursor:pointer;align-items:center;gap:10px;padding:0 14px;font-size:15px;font-weight:650;list-style:none;display:flex}.dx-mnav summary::-webkit-details-marker{display:none}.dx-mnav summary svg{color:var(--sq-ink-2);flex-shrink:0}.dx-mnav summary svg:last-child{margin-left:auto;transition:transform .15s}.dx-mnav details[open] summary svg:last-child{transform:rotate(180deg)}.dx-mnav .dx-nav{padding:16px 0 8px}.dx-mnav summary:focus-visible{outline:2px solid var(--sq-focus);outline-offset:2px}.dx-toc-title{color:var(--sq-ink);padding:0 0 10px 14px;font-size:15px;font-weight:700}.dx-toc ol{gap:2px;list-style:none;display:grid}.dx-toc a{border-radius:0 var(--sq-r-inner) var(--sq-r-inner) 0;color:var(--sq-ink-2);padding:5px 8px 5px 14px;font-size:15px;line-height:1.45;transition:color .15s;display:block;position:relative}.dx-toc a:hover{color:var(--sq-ink)}.dx-toc a:before{content:"";border-radius:var(--sq-r-pill);background:0 0;width:2px;transition:background-color .15s;position:absolute;top:6px;bottom:6px;left:0}.dx-toc a[aria-current=location]{color:var(--sq-primary);font-weight:650}.dx-toc a[aria-current=location]:before{background:var(--sq-primary)}.dx-tools{flex-wrap:wrap;justify-content:flex-end;gap:8px;margin-bottom:20px;display:flex}.dx-tool{all:unset;box-sizing:border-box;cursor:pointer;border-radius:var(--sq-r-ctl);min-height:36px;color:var(--sq-ink-2);white-space:nowrap;align-items:center;gap:7px;padding:0 12px;font-size:15px;font-weight:550;transition:background-color .15s,color .15s;display:inline-flex}.dx-tool:hover{background:var(--sq-cell);color:var(--sq-ink)}.dx-tool:focus-visible{outline:2px solid var(--sq-focus);outline-offset:2px}.dx-tool svg{flex-shrink:0}.dx-tool.dx-ok svg{color:var(--sq-ok)}.dx-h1{font-size:40px;line-height:1.15;font-weight:var(--sq-fw-heading);letter-spacing:-.025em;text-wrap:balance}.dx-lede{color:var(--sq-ink-2);text-wrap:pretty;margin-top:16px;font-size:19px;line-height:1.6}.dx-head{margin-bottom:56px}.dx-sec{margin-top:64px}.dx-sec:first-of-type{margin-top:0}.dx-h2{font-size:28px;line-height:1.25;font-weight:var(--sq-fw-heading);letter-spacing:-.02em;text-wrap:balance;scroll-margin-top:16px}.dx-h3{letter-spacing:-.01em;font-size:19px;font-weight:700;line-height:1.4}.dx-sec>.dx-h2+*{margin-top:16px}.dx-p{text-wrap:pretty}.dx-p+.dx-p{margin-top:12px}.dx-muted{color:var(--sq-ink-2)}.dx-doc a.dx-link{color:var(--sq-ink);text-decoration:underline;-webkit-text-decoration-color:var(--sq-guide);text-decoration-color:var(--sq-guide);text-underline-offset:3px;transition:color .15s,text-decoration-color .15s}.dx-doc a.dx-link:hover{color:var(--sq-primary);text-decoration-color:currentColor}.dx-doc :not(pre)>code{border-radius:var(--sq-r-inner);background:var(--sq-cell);overflow-wrap:anywhere;padding:2px 6px;font-size:.875em}.dx-list{gap:8px;padding-left:1.25em;list-style:outside;display:grid}.dx-list li::marker{color:var(--sq-icon)}.dx-stack{gap:12px;display:grid}.dx-stack-lg{gap:40px;display:grid}.dx-sec .dx-stack,.dx-sec .dx-stack-lg,.dx-sec .dx-list,.dx-sec .dx-cards,.dx-sec .dx-steps,.dx-sec .dx-rows,.dx-sec .dx-tabs{margin-top:24px}.dx-code{border-radius:var(--sq-r-ctl);align-items:flex-start;gap:12px;min-width:0;display:flex;position:relative}.dx-code pre{white-space:pre-wrap;overflow-wrap:anywhere;flex:1;min-width:0;margin:0;font-size:14px;line-height:1.7}.dx-code-shell{background:var(--sq-term);color:var(--sq-term-ink);padding:9px 8px 9px 18px}.dx-code-shell pre{padding:6px 0;font-weight:500}.dx-code-ps{color:var(--sq-term-dim);-webkit-user-select:none;user-select:none}.dx-code-prompt{background:var(--sq-cell);color:var(--sq-ink);padding:12px 8px 12px 18px}.dx-code-prompt pre{padding:4px 0;font-family:inherit;font-size:15px;line-height:1.7}.dx-copy{all:unset;box-sizing:border-box;cursor:pointer;border-radius:calc(var(--sq-r-ctl) - 4px);flex-shrink:0;justify-content:center;align-items:center;gap:6px;min-width:76px;height:36px;padding:0 12px;font-size:14px;font-weight:600;transition:background-color .15s,color .15s;display:inline-flex}.dx-copy:focus-visible{outline:2px solid var(--sq-focus);outline-offset:2px}.dx-copy[aria-busy=true]{cursor:wait;opacity:.7}.dx-code-shell .dx-copy{background:color-mix(in srgb,#fff 12%,var(--sq-term));color:var(--sq-term-ink)}.dx-code-shell .dx-copy:hover{background:color-mix(in srgb,#fff 22%,var(--sq-term))}.dx-code-shell .dx-copy:focus-visible{outline-color:var(--sq-p300)}.dx-code-shell .dx-copy.dx-ok{color:var(--sq-term-acc)}.dx-code-prompt .dx-copy{background:var(--sq-paper);color:var(--sq-ink-2)}.dx-code-prompt .dx-copy:hover{color:var(--sq-ink)}.dx-code-prompt .dx-copy.dx-ok{color:var(--sq-ok)}.dx-steps{counter-reset:dx-step;gap:32px;list-style:none;display:grid}.dx-steps>li{counter-increment:dx-step;grid-template-columns:28px minmax(0,1fr);column-gap:16px;display:grid}.dx-steps>li:before{content:counter(dx-step);border-radius:var(--sq-r-pill);background:var(--sq-cell);font-variant-numeric:tabular-nums;width:28px;height:28px;color:var(--sq-ink);justify-content:center;align-items:center;margin-top:-1px;font-size:15px;font-weight:700;display:flex}.dx-steps>li>*{grid-column:2}.dx-steps .dx-h3+*{margin-top:6px}.dx-steps .dx-code{margin-top:14px}.dx-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.dx-card{border-radius:var(--sq-r-card);background:var(--sq-band);flex-direction:column;gap:10px;padding:24px;display:flex}.dx-card .dx-p{color:var(--sq-ink-2)}.dx-card-action{color:var(--sq-ink);align-self:flex-start;align-items:center;gap:6px;margin-top:auto;padding-top:6px;font-weight:650;transition:color .15s;display:inline-flex}.dx-card-action:hover{color:var(--sq-primary)}.dx-callout{border-radius:var(--sq-r-card);background:var(--sq-band);padding:24px}.dx-callout .dx-p{color:var(--sq-ink-2);margin-top:8px}.dx-rows{gap:4px;list-style:none;display:grid}.dx-row{border-radius:var(--sq-r-ctl);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:4px 16px;margin:0 -14px;padding:12px 14px;transition:background-color .15s;display:grid}.dx-row:hover{background:var(--sq-cell)}.dx-row-t{color:var(--sq-ink);font-weight:650}.dx-row-t code{background:0 0;padding:0;font-size:15px}.dx-row-d{color:var(--sq-ink-2);grid-column:1;font-size:15px;line-height:1.6}.dx-row svg{color:var(--sq-icon);grid-area:1/2/span 2;transition:color .15s,transform .15s}.dx-row:hover svg{color:var(--sq-ink)}.dx-item{gap:12px;display:grid}.dx-item .dx-p{color:var(--sq-ink-2)}.dx-kv{grid-template-columns:auto minmax(0,1fr);gap:4px 12px;font-size:15px;line-height:1.6;display:grid}.dx-kv dt{color:var(--sq-ink);font-weight:650}.dx-kv dd{color:var(--sq-ink-2)}.dx-tags{flex-wrap:wrap;gap:6px;display:flex}.dx-sec .dx-facts{row-gap:12px;margin-top:24px}.dx-excerpt{border-radius:var(--sq-r-ctl);background:var(--sq-band);color:var(--sq-ink);white-space:pre-wrap;overflow-wrap:anywhere;margin:24px 0 0;padding:16px 18px;font-size:13.5px;line-height:1.65}.dx-excerpt+.dx-list{margin-top:20px}.dx-tags code{border-radius:var(--sq-r-inner);background:var(--sq-cell);color:var(--sq-ink);padding:3px 9px;font-size:13.5px}.dx-skills{gap:2px;margin-top:20px;display:grid}.dx-skill{grid-template-columns:minmax(0,13rem) minmax(0,1fr);gap:4px 20px;padding:10px 0;display:grid}.dx-skill code{border-radius:var(--sq-r-inner);background:var(--sq-cell);color:var(--sq-ink);justify-self:start;padding:2px 8px;font-size:14px;line-height:1.6}.dx-skill p{color:var(--sq-ink-2);font-size:15px;line-height:1.6}.dx-tablist{border-radius:var(--sq-r-ctl);background:var(--sq-cell);flex-wrap:wrap;gap:4px;padding:4px;display:inline-flex}.dx-tab{all:unset;box-sizing:border-box;cursor:pointer;border-radius:calc(var(--sq-r-ctl) - 4px);min-height:36px;color:var(--sq-ink-2);white-space:nowrap;align-items:center;padding:0 14px;font-size:15px;font-weight:550;transition:background-color .15s,color .15s;display:inline-flex}.dx-tab:hover{color:var(--sq-ink)}.dx-tab[data-active],.dx-tab[aria-selected=true]{background:var(--sq-paper);color:var(--sq-ink);font-weight:650;box-shadow:0 1px 2px #14143c14}.dx-tab:focus-visible{outline:2px solid var(--sq-focus);outline-offset:2px}.dx-tabpanel{margin-top:16px}.dx-tabpanel[hidden]{display:none}.dx-tabpanel .dx-p{color:var(--sq-ink-2);margin-bottom:14px}.dx-pager{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:96px;display:grid}.dx-pager a{border-radius:var(--sq-r-card);background:var(--sq-band);gap:4px;padding:18px 22px;transition:background-color .15s;display:grid}.dx-pager a:hover{background:var(--sq-cell)}.dx-pager a:focus-visible{outline:2px solid var(--sq-focus);outline-offset:2px}.dx-pager small{color:var(--sq-ink-2);align-items:center;gap:6px;font-size:15px;display:inline-flex}.dx-pager b{color:var(--sq-ink);font-size:16px;font-weight:650}.dx-pager .dx-next{text-align:right;grid-column:2;justify-items:end}@media (max-width:1199px){.dx-layout{grid-template-columns:var(--dx-nav) minmax(0,1fr)}.dx-toc{display:none}}@media (max-width:899px){.dx-layout{display:block}.dx-side{display:none}.dx-mnav{max-width:var(--sq-max);padding:4px var(--sq-gut) 0;margin:0 auto;display:block}.dx-main{padding:28px 0 72px}.dx-h1{font-size:32px}.dx-lede,.dx-h3,.dx-statement{font-size:18px}.dx-head{margin-bottom:44px}.dx-sec{margin-top:52px}.dx-h2{font-size:24px}.dx-cards,.dx-skill{grid-template-columns:minmax(0,1fr)}.dx-pager{grid-template-columns:minmax(0,1fr);margin-top:72px}.dx-pager .dx-next{grid-column:1}}@media (max-width:480px){.dx-code{flex-direction:column;align-items:stretch;gap:4px}.dx-code-shell,.dx-code-prompt{padding:10px 10px 10px 16px}.dx-copy{align-self:flex-end}}@media (prefers-reduced-motion:reduce){.dx-root *{transition:none!important}}.dx-statement{color:var(--sq-ink);text-wrap:pretty;font-size:19px;font-weight:500;line-height:1.6}.dx-spec-label{color:var(--sq-ink-2);margin-bottom:8px;font-size:15px;font-weight:650}.dx-spec{border-radius:var(--sq-r-ctl);background:var(--sq-band);min-height:12rem;padding:12px;overflow:hidden}.dx-spec-after{background:var(--sq-paper);box-shadow:inset 0 0 0 1.5px var(--sq-guide-2)}.dx-spec-text{flex-direction:column;gap:10px;min-height:0;padding:20px;display:flex}.dx-spec-title{color:var(--sq-ink);font-size:17px;font-weight:650;line-height:1.5}.dx-spec-body{color:var(--sq-ink-2);font-size:15px;line-height:1.65}.dx-spec-signals{flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px;list-style:none;display:flex}.dx-spec-signals li{border-radius:var(--sq-r-inner);background:var(--sq-cell);color:var(--sq-ink-2);align-items:center;gap:4px;padding:3px 9px;font-size:13.5px;display:inline-flex}.dx-spec-after .dx-spec-signals li{color:var(--sq-ink)}.dx-compare{gap:16px;display:grid}.dx-compare-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.dx-compare-h{margin-top:14px}.dx-compare-pair .dx-p{margin-top:6px;font-size:15px}.dx-direction{grid-template-columns:minmax(0,16rem) minmax(0,1fr);align-items:start;gap:24px}@media (max-width:899px){.dx-compare-pair,.dx-direction{grid-template-columns:minmax(0,1fr)}}