:root{--ink:#202127;--muted:#696c78;--blue:#4866ec;--line:#e7e8ee;--soft:#f5f6fa;--radius:24px;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fafafc;font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;-webkit-font-smoothing:antialiased}
button,a{-webkit-tap-highlight-color:transparent}
button{font:inherit;cursor:pointer}
a{color:inherit;text-decoration:none}
button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
button{color:inherit}
button:disabled{cursor:default}
img{display:block}
h1,h2,h3,h4,h5,p{margin:0}
button,a{touch-action:manipulation}
[hidden]{display:none!important}
.shell{width:min(1120px,calc(100% - 64px));margin-inline:auto}
.header{position:sticky;top:0;z-index:10;background:#fafafcf2;backdrop-filter:blur(16px);border-bottom:1px solid #eeeeF4}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:730;font-size:18px;letter-spacing:-.6px}
.brand-light{font-weight:450}
.nav-links{display:flex;align-items:center;gap:30px;font-size:13px}
.nav-links a{color:#575963}
.nav-links a:hover,.text-link:hover{color:var(--blue)}
.nav-github{border:1px solid var(--line);border-radius:24px;padding:10px 17px;background:white}
.menu-toggle{display:none}
.hero{text-align:center;padding:76px 0 46px}
.announcement{display:inline-flex;align-items:center;gap:10px;font-size:12px;color:#555b75;background:#eeeff8;border:1px solid #e3e5f2;border-radius:20px;padding:9px 14px}
.status-dot{display:inline-block;width:6px;height:6px;background:var(--blue);border-radius:50%;flex-shrink:0}
.hero h1{font-size:clamp(44px,5.4vw,76px);font-weight:620;letter-spacing:-4px;line-height:1.2;margin:30px 0 15px}
.mobile-break{display:none}
.hero-sub{color:var(--blue);font-size:25px;letter-spacing:-.8px;font-weight:550}
.hero-copy{font-size:16px;line-height:1.9;color:var(--muted);margin-top:24px}
.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:23px;border-radius:28px;padding:15px 25px;font-size:14px;font-weight:550;min-height:48px;transition:background .2s,transform .2s}
.button:hover{transform:translateY(-2px)}
.primary{background:var(--blue);color:#fff;box-shadow:0 4px 12px #4866ec20}
.primary:hover{background:#3654d8}
.secondary{background:#fff;border:1px solid #dedfe7}
.secondary:hover{background:#f0f1f7}
.hero-note{font-size:11px;color:#787c8b;margin-top:20px;letter-spacing:1px}
.workspace{padding-top:12px}
.demo-wrap{background:#fff;border:1px solid #e0e2ec;border-radius:18px;overflow:hidden;box-shadow:0 24px 70px -28px #818aba48,0 2px 10px #30385c05}
.window-top{display:flex;align-items:center;justify-content:space-between;height:44px;padding:0 20px;background:#fdfdfe;border-bottom:1px solid var(--line);font-size:11px;color:#777b87}
.window-dots{display:flex;gap:5px}
.window-dots i{width:7px;height:7px;border-radius:50%;background:#dfe1e9}
.demo-label{font-size:10px;border:1px solid var(--line);padding:3px 7px;border-radius:5px}
.app-demo{display:grid;grid-template-columns:205px 1fr;min-height:454px}
.sidebar{padding:27px 16px;background:#f6f7fb;border-right:1px solid var(--line);display:flex;flex-direction:column}
.repo-label{display:flex;gap:10px;align-items:center;font-size:12px;font-weight:600;padding:0 7px}
.repo-label small{display:block;color:#737888;font-weight:400;margin-top:4px;font-size:10px}
.repo-icon{display:grid;place-items:center;background:white;border:1px solid var(--line);border-radius:9px;width:31px;height:31px;color:var(--blue)}
.demo-tabs{display:grid;gap:7px;margin-top:30px}
.demo-tabs button{display:flex;align-items:center;gap:12px;padding:12px;border:0;border-radius:9px;background:none;color:#626775;font-size:12px;text-align:left;min-height:44px}
.demo-tabs button[aria-selected=true]{background:#e7ebff;color:#3856cf;font-weight:600}
.count{margin-left:auto;font-size:10px;background:#d9e0fc;padding:2px 5px;border-radius:4px}
.sidebar-bottom{margin-top:auto;font-size:10px;display:flex;gap:7px;align-items:center;color:#72778a;padding:20px 5px 0}
.demo-content{padding:30px 38px;min-width:0}
.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}
.overline{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1.8px;font-size:10px;color:#737c97}
.panel-heading h3{font-size:20px;font-weight:550;margin-top:9px;letter-spacing:-.5px}
.small-tag{font:10px ui-monospace,monospace;color:#848b9b;border:1px solid var(--line);padding:5px 9px;border-radius:6px}
.panel-intro{font-size:11px;color:#7c8190;margin:12px 0 18px}
.paper{display:flex;gap:16px;align-items:center;border-top:1px solid #eff0f4;padding:19px 0}
.paper-number{color:#a0a7bc;font:10px ui-monospace,monospace}
.paper>div{flex:1}
.paper-meta{color:#8a8f9d;font-size:9px;display:flex;gap:9px;align-items:center}
.paper-meta span{background:#eef1fe;color:#596ab5;padding:3px 5px;border-radius:4px;font-family:monospace}
.paper h4{font-weight:550;font-size:14px;margin:7px 0 5px}
.paper p{font-size:11px;line-height:1.65;color:#7b808e}
.save-paper{border:1px solid var(--line);border-radius:50%;background:white;width:36px;height:36px;flex-shrink:0;font-size:20px;color:#77849f}
.save-paper[aria-pressed=true]{background:#e9edff;color:#3454d3;border-color:#c7d0fc}
.demo-foot{display:flex;justify-content:space-between;gap:12px;font-size:10px;color:#7c8190;border-top:1px solid var(--line);padding-top:15px;line-height:1.6}
.demo-caption{text-align:center;font-size:11px;color:#828694;margin-top:20px}
.folder{display:flex;align-items:center;gap:18px;padding:24px 5px;border-top:1px solid var(--line)}
.folder>span:first-child{font-size:28px;color:#7d8bd1}
.folder>span:last-child{margin-left:auto;color:#949aae}
.folder h4{font-size:14px;font-weight:550}
.folder p{font-size:11px;color:var(--muted);margin-top:6px}
.note-page{margin-top:24px;background:#fafafd;border:1px solid var(--line);border-radius:12px;padding:24px}
.note-path{font:10px monospace;color:#7c849a}
.note-page h4{font-size:19px;font-weight:550;margin:20px 0 12px}
.note-page h5{font-size:13px;margin:20px 0 8px}
.note-page p{font-size:12px;line-height:1.8;color:var(--muted)}
blockquote{font-size:12px;margin:20px 0;padding:8px 12px;border-left:2px solid #b7c2fa;color:#606b94}
.note-chip{display:inline-block;padding:5px 8px;background:#eceffa;border-radius:5px;font-size:10px;color:#6c789e;margin-right:6px}
.section{padding-top:115px;padding-bottom:90px}
.section-heading{text-align:center}
.section-heading h2{font-size:clamp(30px,3.4vw,44px);font-weight:550;line-height:1.4;letter-spacing:-1.5px;margin:16px 0}
.section-heading p{color:var(--muted);font-size:14px;line-height:1.9}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:45px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px}
.feature-index{font:10px ui-monospace,monospace;letter-spacing:1px;color:#858ba0}
.feature-card h3{font-size:20px;font-weight:550;margin:20px 0 12px;letter-spacing:-.4px}
.feature-card p{color:var(--muted);font-size:13px;line-height:1.9}
.feature-art{height:162px;margin:20px 0 25px;border-radius:12px;background:linear-gradient(140deg,#f4f5fb,#f9f9fc);overflow:hidden}
.art-discover{display:flex;justify-content:center;align-content:center;gap:8px;flex-wrap:wrap;padding:18px}
.art-discover>span{font:11px monospace;border:1px solid #e1e5ef;background:white;padding:8px 10px;border-radius:7px;color:#727c93;transform:rotate(-5deg)}
.art-discover>span:nth-child(even){transform:rotate(5deg)}
.art-discover .active-chip{background:#e7ecff;color:#4260cf;border-color:#ccd6ff}
.query-line{width:100%;text-align:center;font:11px monospace;color:#8390b3;margin-top:12px}
.art-organize{display:grid;gap:8px;align-content:center;padding:18px}
.art-organize>div{padding:10px 12px;border:1px solid #e4e7f0;border-radius:6px;background:#fff;font:11px monospace;color:#727b90}
.art-organize>div:nth-child(2){margin-left:12px}
.art-organize>div:nth-child(3){margin-left:24px}
.art-organize span{float:right;color:#6175cf}
.art-keep{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px}
.orbit{width:95px;height:95px;border-radius:50%;border:1px solid #dde2f3;display:grid;place-items:center;position:relative}
.orbit:before{content:"";position:absolute;inset:10px;border:1px dashed #d1d8f1;border-radius:50%}
.orbit>span{display:grid;place-items:center;background:var(--blue);color:#fff;width:45px;height:45px;border-radius:14px;font-size:23px;transform:rotate(-10deg)}
.orbit-label{font:9px monospace;color:#7f8bac}
.agent-section{display:grid;grid-template-columns:1fr 1.4fr;align-items:center;gap:60px;padding:60px 90px;background:#eef0fa;border:1px solid #e3e6f4;border-radius:24px}
.agent-orbit{height:230px;display:grid;place-items:center;background:repeating-radial-gradient(circle at center,transparent 0 35px,#dce1f2 36px 37px,transparent 38px 65px);border-radius:50%}
.agent-orbit>img{width:110px;height:110px}
.development{font-size:11px;color:#67749c;padding:5px 10px;border:1px solid #ccd3ea;border-radius:20px}
.agent-section h2{font-size:32px;font-weight:550;letter-spacing:-1px;margin:21px 0 16px}
.agent-section p{color:#727a92;font-size:14px;line-height:1.9}
.text-link{display:inline-block;margin-top:24px;font-size:13px;color:#5165b1}
.start{padding-bottom:90px}
.developer-start{max-width:660px;margin:30px auto 0;text-align:center;font-size:12px;color:#777f94}
.developer-start summary{cursor:pointer;display:list-item;list-style-position:inside;padding:8px}
.command{display:flex;align-items:center;gap:12px;padding:15px;border:1px solid var(--line);border-radius:10px;margin:12px 0;background:#fff}
.command code{font-size:11px;flex:1;overflow-wrap:anywhere;text-align:left}
.command button{border:1px solid var(--line);background:var(--soft);padding:10px;border-radius:6px;font-size:11px;white-space:nowrap;min-height:44px}
.footer{border-top:1px solid var(--line);padding:30px 0;display:flex;gap:24px;align-items:center;justify-content:space-between}
.footer .brand{font-size:14px}
.footer>span,.footer>div{font-size:11px;color:#7f8492}
.footer>div{display:flex;gap:20px}
.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}
.skip-link{position:fixed;top:-80px;left:16px;padding:14px;background:#fff;z-index:100}
.skip-link:focus{top:10px}
@media(min-width:1500px){.hero{padding-top:90px}
}
@media(max-width:800px){.shell{width:calc(100% - 36px)}
.nav-links{gap:16px}
.brand{font-size:16px}
.app-demo{grid-template-columns:160px 1fr}
.demo-content{padding:24px}
.feature-grid{gap:12px}
.feature-card{padding:20px}
.agent-section{padding:35px;gap:25px}
.agent-section h2{font-size:28px}
.feature-art{height:140px}
.hero h1{letter-spacing:-2px}
}
@media(max-width:600px){html{scroll-padding-top:80px}
.nav{height:66px}
.menu-toggle{display:flex;gap:12px;align-items:center;background:none;border:1px solid var(--line);border-radius:20px;padding:10px 14px;font-size:12px;min-height:44px}
.nav-links{display:none;position:absolute;left:0;right:0;top:66px;background:#fafafc;border-bottom:1px solid var(--line);padding:18px;flex-direction:column;align-items:stretch;gap:5px}
.nav-links.is-open{display:flex}
.nav-links a{padding:12px}
.hero{padding:50px 0 32px}
.hero h1{font-size:48px;letter-spacing:-2px;line-height:1.25;margin-top:28px}
.mobile-break{display:block}
.hero-sub{font-size:21px}
.hero-copy{font-size:13px;margin-top:20px}
.button{padding:13px 19px;font-size:13px;gap:15px}
.hero-note{font-size:10px}
.window-top{padding:0 12px}
.app-demo{display:block;min-height:0}
.sidebar{padding:10px;border-right:0;border-bottom:1px solid var(--line)}
.repo-label,.sidebar-bottom{display:none}
.demo-tabs{display:flex;margin:0;gap:4px}
.demo-tabs button{justify-content:center;flex:1;padding:10px 5px;gap:6px;font-size:11px}
.count{display:none}
.demo-content{padding:22px 17px;min-height:435px}
.panel-heading h3{font-size:17px}
.small-tag{display:none}
.overline{font-size:8px;letter-spacing:1.1px}
.paper{gap:10px;padding:18px 0}
.paper-number{display:none}
.paper h4{font-size:13px}
.paper p{font-size:10px}
.save-paper{width:44px;height:44px}
.demo-foot{font-size:9px;flex-wrap:wrap;gap:4px}
.demo-caption{font-size:10px;line-height:1.8;padding:0 10px}
.section{padding-top:75px;padding-bottom:55px}
.section-heading h2{font-size:30px}
.section-heading p{font-size:12px}
.feature-grid{grid-template-columns:1fr;margin-top:30px;gap:14px}
.feature-card{padding:24px}
.feature-art{height:160px;margin-bottom:20px}
.feature-card h3{font-size:21px}
.agent-section{grid-template-columns:1fr;padding:30px;text-align:center;gap:20px}
.agent-orbit{height:145px;width:180px;margin:auto}
.agent-orbit>img{width:75px;height:75px}
.agent-section h2{font-size:25px}
.agent-section p{font-size:12px}
.footer{flex-wrap:wrap;justify-content:center;padding:25px 0}
.footer>span{display:none}
.footer>div{font-size:10px}
.note-page{padding:16px}
.note-page h4{font-size:17px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
*,*:before,*:after{animation:none!important;transition:none!important}
}