*{box-sizing:border-box}
html{color-scheme:dark}
body{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
a,button{-webkit-tap-highlight-color:transparent}
html[lang="zh-CN"] [data-locale="en"],html[lang="en"] [data-locale="zh"]{display:none}
[hidden]{display:none!important}
.skip-link{position:fixed;top:-100px;left:22px;z-index:20;padding:12px 18px;background:#eee;color:#111;border-radius:20px}.skip-link:focus{top:12px}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-size:16px;font-weight:600;letter-spacing:-.03em}
.page-navigation{position:relative;display:flex}
.page-back{position:absolute;top:calc(100% + 10px);left:0;display:inline-flex;align-items:center;gap:5px;min-height:20px;color:#929292;font-size:12px;line-height:20px;white-space:nowrap}.page-back:hover{color:#eee}
.language-toggle{border:1px solid #343434;border-radius:20px;background:transparent;color:#666;padding:8px 12px;font-size:10px}
html[lang="zh-CN"] .language-zh,html[lang="en"] .language-en{color:var(--text)}
.page-main{padding-top:44px;padding-bottom:40px}
.breadcrumbs{display:flex;align-items:center;gap:12px;margin-top:24px;color:#676767;font-size:11px}.breadcrumbs a:hover{color:#ddd}
.page-heading{padding-block:54px 40px}.eyebrow{margin:0;font-size:10px;letter-spacing:.16em;color:#6b6b6b}
h1,h2,h3,p{margin:0}
.page-heading h1{margin-top:17px;font-size:clamp(34px,4.7vw,54px);font-weight:500;letter-spacing:-.04em;line-height:1.2}
.page-heading>p:last-child{margin-top:19px;color:#a3a3a3;font-size:16px;line-height:1.8}
.test-banner{margin-top:20px;padding:16px 0;border-bottom:1px solid #292929;color:#858585;font-size:12px;line-height:1.9}
.test-banner>p:first-child{color:#c5c5c5;font-size:11px;letter-spacing:.06em}.test-banner>p+p{margin-top:7px}
.test-banner nav{display:flex;gap:22px;margin-top:16px;font-size:11px}.test-banner a{color:#777}.test-banner a[aria-current="true"]{color:#eee;text-decoration:underline;text-underline-offset:5px}
.download-workspace{margin-top:0}
.download-tab-strip{padding:6px 6px 0;border-bottom:1px solid #373737;border-radius:10px 10px 0 0;background:#0b0b0b}
.download-tabs{display:flex;align-items:stretch;gap:4px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:#333 transparent;overscroll-behavior-x:contain}
.download-tabs::-webkit-scrollbar{height:3px}.download-tabs::-webkit-scrollbar-thumb{background:#333;border-radius:4px}
.download-tab{position:relative;display:flex;align-items:center;justify-content:flex-start;gap:10px;flex:0 0 clamp(160px,17vw,210px);min-width:160px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-bottom:0;border-radius:9px 9px 0 0;background:transparent;color:#858585;font-size:13px;line-height:1.5;white-space:nowrap;transition:color .2s ease,background .2s ease,border-color .2s ease}
.download-tab svg{width:18px;height:18px;flex-shrink:0;pointer-events:none}
.download-tab:hover{color:#ddd;background:#161616}.download-tab[aria-selected="true"]{color:#eee;background:#202020;border-color:#373737}
.download-tab:not([aria-selected="true"])::after{content:"";position:absolute;right:-3px;top:50%;width:1px;height:18px;transform:translateY(-50%);background:#333}
.download-panels{position:relative;overflow:hidden}.download-panel{display:flow-root;outline-offset:-4px}
.item-heading{max-width:760px}.item-heading h2{margin-top:13px;font-size:30px;font-weight:500;letter-spacing:-.03em;line-height:1.3}.item-summary{margin-top:17px;color:#9a9a9a;font-size:14px;line-height:1.9}
.item-version{display:flex;flex-wrap:wrap;gap:30px 60px;margin:25px 0 0;padding:0}.item-version dt,.resource-facts dt{font-size:10px;color:#6d6d6d;line-height:1.7}.item-version dd{margin:7px 0 0;font-size:13px;line-height:1.7}
.resource-list{margin-top:32px;border-top:1px solid #2a2a2a}
.download-resource{padding:30px 0 29px;border-bottom:1px solid #2a2a2a}
.resource-header{display:flex;align-items:baseline;justify-content:space-between;gap:18px}.resource-header h3{font-size:20px;font-weight:500;letter-spacing:-.02em;line-height:1.5;overflow-wrap:anywhere}
.test-badge{flex-shrink:0;color:#737373;font-size:10px;border:1px solid #333;padding:3px 8px;border-radius:4px}
.resource-tags{display:flex;align-items:center;flex-wrap:wrap;gap:5px 11px;margin-top:15px;color:#b0b0b0;font-size:12px;line-height:1.8}
.resource-tags>[aria-hidden="true"]{color:#3d3d3d}.fact-state{font-size:10px;color:#666}.muted{color:#777}
.resource-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px 34px;margin:25px 0 0;padding:0}
.resource-facts dd{margin:7px 0 0;color:#b0b0b0;font-size:12px;line-height:1.9;overflow-wrap:anywhere}.fact-wide{grid-column:1/-1}.checksum-value{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px;overflow-wrap:anywhere}
.resource-action{display:flex;align-items:center;flex-wrap:wrap;gap:14px 20px;margin-top:25px}.download-action{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:11px 22px;border:1px solid #ddd;border-radius:24px;background:#eee;color:#090909;font-size:12px;line-height:1.4}.download-action:hover{background:#d4d4d4}
.download-footnote{font-size:10px;color:#646464;line-height:1.8}.demo-result{min-height:0;margin-top:0;color:#999;font-size:11px;line-height:1.8}.demo-result:not(:empty){margin-top:15px}
.source-details{margin-top:20px;max-width:760px;color:#777;font-size:11px;line-height:1.9}.source-details summary{width:fit-content;cursor:pointer}.source-details p{margin-top:10px}.source-details a{text-decoration:underline;text-underline-offset:3px}
.item-notes{margin-top:32px;color:#999;font-size:13px;line-height:1.9}.item-notes h2{font-size:16px;font-weight:500;color:#ccc}.item-notes ul,.download-resource ul,.download-panel>ul{padding-left:18px;margin:12px 0 0;color:#999;font-size:13px;line-height:1.9}
.empty-state{padding-block:30px;color:#777;font-size:13px}
.site-footer{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid #252525;padding-block:26px 35px;color:#5b5b5b;font-size:10px}.site-footer a:hover{color:#bbb}
@media(max-width:767px){
 .page-main{padding-top:46px;padding-bottom:30px}.page-heading{padding-block:36px 29px}.page-heading h1{font-size:34px}.page-heading>p:last-child{font-size:14px}
 .test-banner{font-size:11px;padding-block:14px 16px}.download-tab-strip{padding:5px 5px 0}.download-tab{flex-basis:174px;min-width:174px;min-height:44px;padding:11px 15px;font-size:12px;gap:8px}.download-tab svg{width:17px;height:17px}
 .item-version{gap:20px 35px}.item-version dd{font-size:12px}
 .resource-list{margin-top:26px}.download-resource{padding-block:25px}.resource-header h3{font-size:17px}.test-badge{font-size:9px;padding-inline:6px}.resource-tags{font-size:11px;gap:4px 8px}
 .resource-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:21px 20px}.resource-facts dd{font-size:11px}.resource-facts dt{font-size:9px}.checksum-value{font-size:10px}
 .resource-action{align-items:flex-start;gap:12px}.download-action{font-size:11px;min-height:40px;padding-inline:20px}.download-footnote{width:100%}.item-notes{font-size:12px}
 .site-footer{font-size:9px;padding-block:22px 28px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}