:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;color:#172333;background:#f1f4f7;font-synthesis:none;font-size:16px;line-height:1.5;--green: #096448;--line: #dde3ea}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #18a779;outline-offset:4px}input:focus,select:focus,textarea:focus{outline:2px solid #18a779;outline-offset:-2px}header{height:80px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(32px,calc((100vw - 1440px)/2));background:#fff}.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:750;letter-spacing:-.5px}.brand svg{width:35px;height:35px;background:#172333;color:#89eccb;padding:7px;border-radius:9px}.muted{font-weight:450;color:#788390}.beta{font-size:10px;letter-spacing:1px;border:1px solid #cbd5df;padding:2px 5px;border-radius:4px;margin-left:3px;color:#596575}.github{font-size:14px;font-weight:600;display:flex;gap:12px;padding:8px 14px;border:1px solid var(--line);border-radius:7px}main{max-width:1504px;margin:auto;padding:42px 32px 20px}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;gap:20px}.eyebrow{font-size:11px;letter-spacing:1.8px;font-weight:750;color:#66788a;margin-bottom:9px}h1{font-size:clamp(28px,3vw,40px);letter-spacing:-1.6px;line-height:1.2;margin:0;font-weight:650}h1 em{font-style:normal;color:var(--green)}.intro p{color:#627184;margin:12px 0 0;font-size:16px}.privacy{font-size:14px;color:#354858;line-height:1.8}.privacy>span:first-child{color:var(--green);font-size:22px;vertical-align:-2px;margin-right:6px}.privacy>span:last-child{font-size:12px;color:#6a7786}.workbench{display:grid;grid-template-columns:minmax(300px,.82fr) minmax(0,1.35fr);gap:22px;align-items:start}.editor-panel,.preview-panel{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;min-width:0}.panel-bar{height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--line)}h2{font-size:15px;display:flex;align-items:center;gap:10px;margin:0;font-weight:650}.step{font-family:monospace;font-size:12px;color:#758391;background:#f1f4f7;padding:2px 6px;border-radius:4px}.text-button{background:none;border:0;color:#64748b;font-size:13px;padding:8px}.format{font-size:12px;color:#667588}.examples{padding:18px 22px;background:#fafbfd;border-bottom:1px solid var(--line)}.examples>span{font-size:12px;color:#6c7a8b;display:block;margin-bottom:10px}.examples>div{display:flex;flex-wrap:wrap;gap:6px}.example{font-size:12px;border:1px solid #d8e0e7;border-radius:5px;padding:6px 9px;background:#fff;color:#566779}.example[aria-pressed=true]{background:#e8f7f0;border-color:#84bfa7;color:#146347}.code-wrap{background:#172333;padding:20px 4px 20px 20px}textarea{width:100%;height:305px;min-height:240px;resize:vertical;background:transparent;border:0;padding:2px 12px 2px 2px;color:#c8f5e4;line-height:1.9;font-family:Cascadia Code,SFMono-Regular,Consolas,Microsoft YaHei,monospace;font-size:14px;tab-size:2;white-space:pre}.source-bottom{display:flex;justify-content:space-between;gap:8px;font-size:11px;background:#172333;color:#9bacbf;padding:10px 22px;border-top:1px solid #314153}.file-bar{display:flex;flex-wrap:wrap;gap:8px;padding:14px 22px;border-bottom:1px solid var(--line)}.file-bar .secondary{padding:7px 10px;font-size:14px}.draft-bar{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center;padding:0 22px 14px}.draft-bar label{display:flex;flex-direction:row;align-items:center;gap:8px;font-size:14px}.draft-bar input{width:16px;height:16px;accent-color:var(--green)}#draft-status{flex-basis:100%;color:#657386;font-size:12px;overflow-wrap:anywhere}details{padding:15px 22px;font-size:13px}summary{cursor:pointer;font-weight:550;color:#566779}details p{color:#627184;margin:12px 0}code{font-family:Consolas,monospace;color:#1c6350;font-size:12px}.preview-options{padding:18px 22px;display:flex;gap:16px}label{font-size:12px;font-weight:600;color:#607084;display:flex;flex-direction:column;gap:6px}.preview-options label:first-child{flex:1}input,select{min-width:0;width:100%;font-size:14px;height:37px;border:1px solid #d8e0e7;background:#fff;border-radius:6px;color:#263748;padding:6px 10px}.stage{background:#e9edf2;background-image:radial-gradient(#cbd4de .8px,transparent .8px);background-size:16px 16px;padding:28px;min-height:260px;display:flex;align-items:center;justify-content:center}.layout-controls{display:flex;flex-wrap:wrap;align-items:end;gap:10px;padding:0 22px}.layout-controls label{flex:1;min-width:120px;font-size:14px}.layout-controls .secondary{height:37px;padding:6px 12px}.layout-summary{color:#26664f;font-size:14px;margin:12px 22px 2px}.layout-hint{color:#68778b;font-size:12px;margin:0 22px 14px}.slide{--paper: #f8fafc;--ink: #172333;--accent: #138264;background:var(--paper);color:var(--ink);width:100%;aspect-ratio:16/9;position:relative;box-shadow:0 5px 16px #16293a14;container-type:inline-size}.slide-title{position:absolute;top:5%;left:4.5%;width:91%;height:9%;font-size:3cqw;line-height:1.25;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.slide-rule{position:absolute;left:4.5%;right:4.5%;top:13.6%;height:1px;background:var(--accent)}.diagram-area{position:absolute;left:4.5%;top:17.066%;width:91%;height:74.4%;display:flex;align-items:center;justify-content:center}.diagram-area svg{width:100%;height:100%;object-fit:contain}.preview-footer{padding:12px 22px;display:flex;justify-content:space-between;gap:10px;font-size:12px;color:#68778b}.native-badge{color:#2f7660}.export-row{padding:12px 22px 0;display:flex;gap:10px;justify-content:flex-end}.primary,.secondary{border-radius:7px;padding:12px 16px;font-size:14px;font-weight:600}.primary{background:#0b6c4e;color:#fff;border:1px solid #0b6c4e;display:flex;align-items:center;justify-content:space-between;gap:22px}.primary:hover:not(:disabled){background:#084f3a}.secondary{background:#fff;border:1px solid #d6dfe7;color:#516175}.export-note{font-size:12px;color:#6b7886;margin:12px 22px 22px;text-align:right}#notice:empty{display:none}#notice{font-size:13px;margin:5px 22px 0;padding:10px 12px;border-radius:6px;overflow-wrap:anywhere}.error{background:#fff0ef;color:#a12d25}.warning{background:#fff6dc;color:#805b10}.success{background:#e8f7f0;color:#146347}.empty{color:#64748b;min-height:280px;align-content:center;text-align:center}footer{display:flex;justify-content:space-between;gap:16px;padding:24px 2px;font-size:12px;color:#748294}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}@media(min-width:1500px){.stage{padding:38px}.code-wrap textarea{height:345px}}@media(max-width:1050px){.privacy{display:none}.workbench{grid-template-columns:minmax(290px,.9fr) minmax(0,1.1fr)}.stage{padding:14px}.preview-options{flex-wrap:wrap}.preview-options label:first-child{min-width:100%}.preview-options label:last-child{width:100%}.preview-footer{flex-wrap:wrap}}@media(max-width:760px){header{height:66px;padding:0 18px}.brand{font-size:16px}.beta{display:none}main{padding:28px 16px 12px}.workbench{grid-template-columns:1fr;gap:18px}.intro{margin-bottom:23px}h1{letter-spacing:-1px;font-size:30px}.intro p{font-size:14px}.eyebrow{font-size:10px}.code-wrap textarea{height:250px;min-height:180px}.preview-options{flex-wrap:nowrap}.preview-options label:first-child{min-width:0}.preview-options label:last-child{width:140px}.stage{padding:16px;min-height:210px}.export-row{padding:10px 16px 0}.primary{flex:1;justify-content:center;font-size:13px;padding:12px}.secondary{font-size:13px;padding:12px}.export-note{text-align:left}.source-bottom{font-size:10px}footer{flex-direction:column;gap:4px}.empty{min-height:180px}}@media(prefers-reduced-motion:no-preference){button{transition:background .15s,border-color .15s}}