@charset "UTF-8";
:root{--paper:#f7f5ef;--white:#fffefa;--ink:#252a27;--muted:#727871;--line:#dedfd6;--orange:#d95325;--orange-light:#f6e7dd;--green:#476052;--mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;--sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.8 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--orange);outline-offset:5px}h1,h2,h3,p,pre{margin:0}button{border:0;background:none;color:inherit}img{max-width:100%}[hidden]{display:none!important}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.skip{position:absolute;left:16px;top:-80px;background:var(--ink);color:white;padding:9px 16px;z-index:10}.skip:focus{top:10px}.site-header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:24px}.brand{display:flex;align-items:center;gap:11px;font-size:16px;letter-spacing:-.5px;line-height:1.35}.brand span{white-space:nowrap}.brand b{font-weight:650}.site-header nav{display:flex;align-items:center;gap:29px;font-size:13px}.site-header nav a:hover,.text-link:hover,.site-footer a:hover{color:var(--orange)}.nav-github{border:1px solid #ccd0c6;border-radius:6px;padding:7px 14px}.nav-github span{margin-left:8px}.hero{padding-block:79px 65px;display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}.eyebrow{font:11px/1.8 var(--mono);letter-spacing:1.7px;font-weight:550;color:var(--green)}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--orange);margin-right:8px}.hero h1{font-size:clamp(42px,4.4vw,62px);line-height:1.32;letter-spacing:-2.4px;font-weight:680;margin:25px 0 23px}.hero h1>span{color:var(--orange)}.hero-description{font-size:15px;line-height:1.95;color:#6c736b}.hero-actions{display:flex;align-items:center;gap:13px;margin:31px 0 21px}.button{display:inline-flex;align-items:center;justify-content:center;gap:23px;padding:12px 23px;border:1px solid transparent;border-radius:6px;font-size:13px;font-weight:550;transition:background .15s}.button.primary{background:var(--orange);color:var(--white)}.button.primary:hover{background:#bf451b}.button.secondary{border-color:#d1d6cb;background:transparent}.button.secondary:hover{background:#eeeee5}.hero-footnote{font-size:11px;letter-spacing:.3px;color:#848a80}.hero-footnote span{margin:0 12px;color:#c3c6bc}.build-board{border:1px solid #d2d8cd;background:#fcfbf7;border-radius:12px;box-shadow:0 20px 35px -28px #3a45334d;transform:rotate(1deg)}.board-top{padding:14px 17px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:16px;font:10px/1.6 var(--mono);color:#7e867b}.window-dots{display:flex;gap:5px}.window-dots i{display:block;width:6px;height:6px;background:#d0d5ca;border-radius:50%}.window-dots i:first-child{background:#e4a384}.board-kind{margin-left:auto;font-size:10px;border:1px solid #dee3d9;padding:0 7px;border-radius:4px}.board-brief{padding:24px 27px 21px;font-size:13px;line-height:1.9}.code-comment{font:11px/1.8 var(--mono);color:#86917d;margin-bottom:12px}.brief-tags{display:flex;gap:8px;margin-top:17px}.brief-tags span{background:#eeeee5;border-radius:4px;padding:2px 9px;font-size:10px;color:#727c68}.flow-line{margin:0 25px;display:flex;gap:10px;align-items:center;color:#a1a98e;font-size:10px;border-top:1px dashed #d5dccb;padding:12px 0}.flow-line>span:first-child{font-size:18px;line-height:1}.board-stack{padding:0 20px 20px}.stack-main{display:flex;align-items:center;gap:12px;border:1px solid #d4dccb;border-radius:6px;background:#eef1e7;padding:15px}.stack-icon{font:15px var(--mono);color:var(--orange)}.stack-main strong,.stack-option strong{font-size:12px;font-weight:600;display:block}.stack-main small,.stack-option small{font-size:10px;color:#859176;display:block}.stack-badge{margin-left:auto;font-size:9px;background:#fffef9;border:1px solid #dce3d1;border-radius:4px;padding:2px 6px;color:#82916b}.stack-option{display:flex;align-items:center;gap:15px;border:1px dashed #d7dece;padding:12px 15px;margin-top:10px;border-radius:6px}.stack-option>span{color:#a6af98}.stack-option>div{flex:1}.stack-option>div+div{padding-left:17px;border-left:1px solid #dce2d4}.board-bottom{border-top:1px solid var(--line);padding:12px 18px;font-size:9px;color:#7d8974;display:flex;align-items:center;gap:7px}.board-bottom>span:last-child{margin-left:auto;color:#989f90}.tiny-dot{width:5px;height:5px;border-radius:50%;background:#81926c}.use-cases{display:flex;align-items:center;gap:40px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-block:22px}.use-cases>span{color:#939a8d;font-size:11px;white-space:nowrap}.use-cases p{font-size:13px;color:#666f60}.use-cases i{font-style:normal;color:#b0b7a7;margin:0 23px}.section{padding-block:80px}.approach{display:grid;grid-template-columns:.9fr 1.4fr;gap:75px}.section-intro h2,.details-grid h2{font-size:31px;font-weight:600;line-height:1.5;letter-spacing:-.7px;margin:15px 0 18px}.section-intro>p:not(.eyebrow),.section-description{font-size:13px;line-height:1.9;color:var(--muted)}.text-link{display:inline-flex;gap:17px;align-items:center;color:#6a775d;font-size:12px;font-weight:550;margin-top:24px}.capability-list article{display:grid;grid-template-columns:30px 1fr auto;gap:15px;align-items:center;border-top:1px solid var(--line);padding:21px 0}.capability-list article:last-child{border-bottom:1px solid var(--line)}.step-no{font:11px var(--mono);color:#a0a995;align-self:start;padding-top:5px}.capability-list h3{font-size:15px;font-weight:600;margin-bottom:5px}.capability-list p{font-size:12px;line-height:1.9;color:var(--muted)}.component{font:9px var(--mono);color:#929c84;align-self:start;padding-top:7px;letter-spacing:.6px;white-space:nowrap}.start-section{background:#eeeee6;border-block:1px solid #e2e4d9;padding-block:69px}.start-grid{display:grid;grid-template-columns:.9fr 1.4fr;gap:75px}.start-content{min-width:0}.snippet{background:#293630;border:1px solid #293630;border-radius:7px;color:#e5e9df;overflow:hidden}.snippet-title{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 17px;font-size:11px;border-bottom:1px solid #ffffff18}.snippet pre{padding:19px 17px 21px;font:11px/1.8 var(--mono);overflow-x:auto}.copy{font-size:10px;line-height:1.5;color:inherit;border:1px solid currentColor;border-radius:4px;padding:3px 8px;opacity:.75;white-space:nowrap}.copy:hover{opacity:1}.prompt-box{margin-top:16px;background:#fbfaf5;border:1px solid #dce0d3;border-radius:7px}.prompt-box .snippet-title{border-bottom:1px solid #e1e4d9;color:#647457}.prompt-tabs{display:flex;gap:5px;margin:14px 17px 0}.prompt-tabs button{border-radius:4px;padding:4px 10px;font-size:10px;color:#919a85}.prompt-tabs button[aria-pressed=true]{background:#e9ede0;color:#4c6641}.prompt-text{font:12px/2 var(--sans);padding:15px 17px 20px;white-space:pre-wrap;color:#626d59}.start-note{font-size:10px;line-height:1.7;color:#8c9680;margin-top:12px}.copy-status{font-size:11px;line-height:1.7;color:var(--green);min-height:19px;margin-top:5px}.details-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px}.boundary{display:flex;align-items:start;gap:15px;margin-top:23px}.boundary>span{font:10px/2 var(--mono);color:#a0a88e;padding-top:2px}.boundary p{font-size:12px;line-height:1.9;color:var(--muted)}.boundary strong{font-size:13px;display:block;color:#4e5b44;font-weight:550;margin-bottom:3px}.faq{padding-top:8px}.faq h2{font-size:19px;margin-bottom:25px}.faq details{border-top:1px solid var(--line);padding:17px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{list-style:none;cursor:pointer;font-size:13px;font-weight:550;display:flex;align-items:center;justify-content:space-between;gap:15px}.faq summary:after{content:'+';font-size:19px;font-weight:400;color:#94a180}.faq details[open] summary:after{content:'−'}.faq summary::-webkit-details-marker{display:none}.faq details p{font-size:12px;color:var(--muted);line-height:1.9;margin-top:12px;padding-right:15px}.english{display:grid;grid-template-columns:145px 1fr;column-gap:36px;border-top:1px solid var(--line);padding-block:32px}.english .eyebrow{grid-row:span 2;padding-top:4px}.english h2{font-size:20px;line-height:1.5;font-weight:550}.english>p:last-child{font-size:12px;color:var(--muted);line-height:1.9;max-width:740px;margin-top:10px}.closing{display:flex;align-items:center;justify-content:space-between;gap:25px;padding-block:40px;border-top:1px solid var(--line)}.closing h2{font-size:27px;font-weight:600;margin-top:8px;line-height:1.5}.site-footer{border-top:1px solid var(--line);padding-block:28px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px 30px;font-size:11px;color:#6b775f}.site-footer>span{font-weight:550}.site-footer i{font-style:normal;font-weight:400;color:#9ba38f;margin-left:13px;font-size:10px}.site-footer nav{display:flex;gap:21px}.site-footer p{flex-basis:100%;font-size:10px;color:#9aa38e}.article-head{padding-block:55px 30px;border-bottom:1px solid var(--line)}.article-head h1{font-size:clamp(30px,4vw,43px);line-height:1.5;font-weight:650;letter-spacing:-1px;margin:18px 0 13px;max-width:900px}.article-head .lead{max-width:780px;color:var(--muted);font-size:15px}.article-meta{font-size:11px;color:#8a9580;margin-top:22px}.article-layout{display:grid;grid-template-columns:1fr 220px;gap:80px;padding-block:45px 70px}.prose{max-width:790px;min-width:0;font-size:14px;line-height:2}.prose h2{font-size:24px;line-height:1.5;font-weight:600;margin:37px 0 15px;scroll-margin-top:30px}.prose h2:first-child{margin-top:0}.prose h3{font-size:17px;margin:23px 0 10px}.prose p,.prose ul,.prose ol{margin-bottom:17px}.prose a{color:#b94e26;text-decoration:underline;text-underline-offset:3px}.prose pre{font:12px/1.9 var(--mono);background:#ecefe5;border:1px solid #dce1d2;border-radius:6px;padding:20px;overflow-x:auto;margin:20px 0}.prose code:not(pre code){font:12px var(--mono);padding:2px 5px;background:#ecefe5;border-radius:4px;overflow-wrap:anywhere}.prose blockquote{border-left:3px solid #d96a3e;margin:20px 0;padding:10px 20px;background:#f4ece1;color:#7b715f;font-size:13px}.prose blockquote p{margin:0}.prose table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.9;margin:20px 0}.prose th,.prose td{text-align:left;border-bottom:1px solid var(--line);padding:11px 12px;vertical-align:top}.prose th{background:#edeFE6}.article-aside{position:sticky;top:30px;align-self:start;font-size:12px}.article-aside nav{display:grid;gap:13px;margin-top:16px}.article-aside a{color:#7c886f}.article-aside a:hover{color:var(--orange)}.article-end{background:#eeeee6;padding:22px;border-radius:6px;margin-top:30px}.article-end p:last-child{margin:0}
@media(min-width:1450px){.hero{padding-block:90px 75px}.hero h1{font-size:63px}}
@media(max-width:1100px){.hero{gap:35px}.hero h1{font-size:48px}.wrap{width:calc(100% - 64px)}.approach,.start-grid{gap:45px}.details-grid{gap:60px}.component{display:none}.capability-list article{grid-template-columns:30px 1fr}.use-cases{gap:25px}.use-cases i{margin:0 15px}.article-layout{gap:45px}}
@media(max-width:800px){.wrap{width:calc(100% - 40px)}.site-header{height:82px}.brand{font-size:14px;gap:8px}.brand img{width:29px;height:29px}.site-header nav{gap:17px;font-size:11px}.nav-github{padding:5px 9px}.hero{padding-block:53px 48px;gap:25px}.hero h1{font-size:39px;letter-spacing:-1.5px}.hero-description{font-size:13px}.hero-actions{gap:10px}.button{padding:10px 16px;gap:13px;font-size:12px}.hero-footnote{font-size:10px}.hero-footnote span{margin:0 7px}.board-brief{padding:20px}.board-top{gap:10px;font-size:9px}.board-top .board-kind{display:none}.stack-main{padding:12px;gap:8px}.stack-main strong,.stack-option strong{font-size:11px}.stack-main small,.stack-option small{font-size:9px}.stack-badge{display:none}.stack-option{padding:10px}.board-bottom{font-size:8px;padding:11px}.board-bottom>span:last-child{display:none}.section{padding-block:57px}.approach,.start-grid{gap:30px;grid-template-columns:.8fr 1fr}.section-intro h2,.details-grid h2{font-size:25px}.section-intro>p:not(.eyebrow),.section-description{font-size:12px}.start-section{padding-block:50px}.details-grid{gap:35px}.use-cases{gap:18px}.use-cases p{font-size:11px}.use-cases i{margin:0 8px}.article-layout{grid-template-columns:1fr}.article-aside{display:none}}
@media(max-width:600px){.wrap{width:calc(100% - 36px)}.site-header{height:76px;gap:12px}.site-header nav{gap:12px}.site-header nav>a:nth-child(1),.site-header nav>a:nth-child(2){display:none}.brand span{font-size:13px}.brand img{width:29px;height:29px}.hero{grid-template-columns:1fr;padding-block:42px 38px;gap:34px}.hero h1{font-size:43px;line-height:1.36;letter-spacing:-1.7px;margin:20px 0 19px}.eyebrow{font-size:10px;letter-spacing:1.4px}.hero-description{font-size:13px;line-height:1.95}.hero-actions{margin:25px 0 16px}.hero .button{padding:12px 21px;font-size:12px}.build-board{transform:none}.board-top{padding:13px 16px;font-size:10px}.board-brief{padding:20px 23px}.board-stack{padding:0 17px 17px}.stack-main{padding:13px;gap:13px}.stack-main strong,.stack-option strong{font-size:12px}.stack-main small,.stack-option small{font-size:10px}.board-bottom{padding:12px 16px;font-size:9px}.board-bottom>span:last-child{display:inline}.stack-badge{display:inline}.use-cases{align-items:flex-start;flex-direction:column;gap:7px;padding-block:17px}.use-cases>span{font-size:10px}.use-cases p{font-size:11px;line-height:2}.use-cases i{margin:0 7px}.section{padding-block:45px}.approach,.start-grid,.details-grid{grid-template-columns:1fr;gap:28px}.section-intro h2,.details-grid h2{font-size:27px;margin:13px 0 16px}.capability-list article{padding:19px 0;grid-template-columns:27px 1fr;gap:10px}.capability-list h3{font-size:14px}.capability-list p{font-size:12px}.text-link{margin-top:18px}.start-section{padding-block:42px}.snippet pre{font-size:10px;padding-inline:14px}.prompt-text{font-size:12px}.faq{padding-top:10px}.faq h2{font-size:19px}.english{grid-template-columns:1fr;gap:10px;padding-block:26px}.english .eyebrow{grid-row:auto;padding:0}.english h2{font-size:19px}.english>p:last-child{margin-top:0;font-size:12px}.closing{padding-block:30px;flex-direction:column;align-items:flex-start;gap:20px}.closing h2{font-size:25px}.site-footer{padding-block:24px;gap:16px}.site-footer nav{gap:20px;font-size:10px}.site-footer p{font-size:9px}.article-head{padding-block:35px 25px}.article-head h1{font-size:29px;letter-spacing:-.5px}.article-head .lead{font-size:13px}.article-layout{padding-block:30px 45px}.prose{font-size:13px}.prose h2{font-size:22px;margin-top:29px}.prose pre{font-size:10px;padding:15px}.prose th,.prose td{padding:9px 6px;font-size:11px}.article-meta{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}