:root{font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1b2d3b;background:#f7f9fb;font-synthesis:none;--blue:#0870b4;--muted:#526779;--line:#d4dfe5}
html:lang(zh-CN){font-family:"Noto Sans CJK SC","PingFang SC","Microsoft YaHei",ui-sans-serif,system-ui,sans-serif}
*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:940px;margin:auto;padding:0 28px}header{min-height:95px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:22px;font-weight:750;letter-spacing:-.5px}.brand span{color:var(--muted);font-weight:400}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}nav{display:flex;align-items:center;gap:24px;font-size:14px}button,textarea{font:inherit}button{cursor:pointer;touch-action:manipulation}a:focus-visible,button:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--blue);outline-offset:4px}#language{min-width:48px;min-height:40px;border:1px solid var(--line);background:white;color:var(--blue);border-radius:6px}main{padding-top:38px}h1{font-size:42px;letter-spacing:-1.5px;margin:0 0 18px;line-height:1.2}.intro{max-width:760px;font-size:19px;line-height:1.8;margin:0 0 15px}.meta{font-size:13px;color:var(--muted);margin:0}section{margin-top:48px}h2{font-size:21px;margin:0 0 18px;font-weight:650;line-height:1.5}.capabilities{margin:0}.capabilities>div{display:grid;grid-template-columns:145px 1fr;gap:18px;padding:17px 0;border-top:1px solid var(--line);font-size:15px;line-height:1.8}dt{font-weight:600}dd{margin:0;color:var(--muted)}.note{font-size:14px;line-height:1.8;color:var(--muted)}.tabs{display:flex;gap:28px;border-bottom:1px solid var(--line);margin-top:23px}.tabs button{border:0;border-bottom:2px solid transparent;background:transparent;padding:12px 4px;font-size:15px;color:var(--muted)}.tabs [aria-selected=true]{color:var(--blue);border-bottom-color:var(--blue);font-weight:650}#usage-panel{padding-top:8px}#usage-description{font-size:15px;line-height:1.8}pre{margin:18px 0;padding:20px;background:#edf2f6;border-radius:6px;overflow-x:auto;font-size:13px;line-height:1.9}code{font-family:ui-monospace,SFMono-Regular,Consolas,"Noto Sans Mono","Noto Sans CJK SC",monospace}.links{display:flex;gap:24px;font-size:14px}textarea{display:block;width:100%;resize:vertical;min-height:95px;padding:16px;margin:12px 0;border:1px solid var(--line);border-radius:6px;background:white;color:#1b2d3b;font-size:15px;line-height:1.8}.copy-row{display:flex;align-items:center;flex-wrap:wrap;gap:16px;font-size:13px}#copy{padding:11px 18px;background:var(--blue);color:white;border:0;border-radius:6px;font-size:14px;font-weight:600}#copy-status{color:var(--blue)}.compatibility{border-top:1px solid var(--line);padding-top:24px;margin-bottom:50px}.compatibility h2{font-size:16px;margin-bottom:8px}footer{border-top:1px solid var(--line);padding-top:24px;padding-bottom:28px;display:flex;gap:22px;flex-wrap:wrap;font-size:12px;color:var(--muted)}footer span{margin-left:auto}@media(max-width:600px){header,main,footer{padding-left:20px;padding-right:20px}header{min-height:80px}nav{gap:14px}nav a:nth-child(2){display:none}main{padding-top:24px}h1{font-size:34px}.intro{font-size:17px}.capabilities>div{grid-template-columns:1fr;gap:5px}section{margin-top:36px}.tabs{gap:24px}pre{padding:15px;font-size:12px}.copy-row a{flex-basis:100%}footer span{margin-left:0;flex-basis:100%}}