:root{--paper:#f2f7fb;--white:#fff;--ink:#172e46;--muted:#596f84;--blue:#345ede;--line:#d7e3ed;--ice:#d9e9f4;--night:#102137;--body:'Segoe UI','Microsoft YaHei UI','Microsoft YaHei',sans-serif;--display:'Segoe UI Variable Display','Segoe UI',sans-serif;--mono:'Cascadia Code',Consolas,monospace;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);line-height:1.65}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}::selection{background:#cbd9ff}img,video{max-width:100%;display:block}button{color:inherit}p{margin:0 0 1.2em}h1,h2,h3{line-height:1.2}h1,h2{letter-spacing:-.05em}h2{font-size:clamp(30px,3vw,44px);font-weight:600}h3{font-size:20px}.wrap{width:min(1240px,calc(100% - 80px));margin:auto}.skip{position:fixed;top:-70px;left:20px;padding:10px;background:white;z-index:99}.skip:focus{top:8px}.header{position:sticky;top:0;z-index:20;border-bottom:1px solid #d7e3edba;background:#f2f7bff0;backdrop-filter:blur(18px)}.nav{height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:11px;font-family:var(--display);font-weight:650;font-size:23px;letter-spacing:-1px}.mark{flex:none}.nav-links{display:flex;align-items:center;gap:30px;font-size:14px}.nav-links a:hover{color:var(--blue)}.nav-download{padding:9px 19px;border:1px solid #bdcfe0;border-radius:8px}.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:1.6px;text-transform:uppercase;color:var(--muted)}.hero{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:48px;padding:80px 0 82px}.release-label{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-family:var(--mono);color:var(--muted)}.release-label:before{content:'';width:6px;height:6px;border-radius:50%;background:var(--blue)}.hero-name{font-family:var(--display);font-size:clamp(66px,7.7vw,112px);font-weight:650;letter-spacing:-.075em;line-height:1.1;margin:25px 0}.hero h1{font-size:clamp(30px,3.3vw,43px);font-weight:550;line-height:1.5;margin:12px 0 23px;letter-spacing:-2px}.hero h1 span{color:var(--blue)}.lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:470px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 22px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:48px;padding:12px 23px;font-size:14px;font-weight:600;border-radius:9px;border:1px solid var(--line);background:white}.button.primary{background:var(--blue);color:white;border-color:var(--blue);box-shadow:0 6px 16px #345ede17}.button:hover{transform:translateY(-1px)}.platforms{font-family:var(--mono);font-size:11px;line-height:2;color:var(--muted)}.optics{border-radius:30px;background:var(--night);padding:24px 24px 20px;color:#e9f5fc;box-shadow:0 30px 64px #253e5c24;transform:rotate(-2deg)}.optics-top,.optics-bottom{display:flex;justify-content:space-between;gap:18px;align-items:center;font-family:var(--mono);font-size:11px;color:#afd2e8}.optics-viewport{margin:23px 0;border-radius:18px;overflow:hidden;aspect-ratio:1120/836;background:#0b1929}.optics-viewport video{width:100%;height:100%;object-fit:cover}.preview-button{border:1px solid #40607e;color:#e9f5fc;background:transparent;border-radius:6px;padding:5px 9px;font-size:11px}.optics-caption{margin-top:14px;font-size:11px;color:#9ebbd4}.spec-strip{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);padding:25px 0;margin-bottom:100px;gap:20px}.spec-strip strong{display:block;font-size:21px;font-weight:500}.spec-strip span{font-size:12px;color:var(--muted)}.section{padding-bottom:100px;scroll-margin-top:110px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:35px}.section-heading h2{margin:14px 0 0}.section-heading p{max-width:430px;color:var(--muted);font-size:14px;margin:0}.film{border-radius:20px;overflow:hidden;background:var(--night);box-shadow:0 16px 46px #1a365116}.film video{width:100%;aspect-ratio:16/9}.fineprint{font-size:12px;color:var(--muted);line-height:1.8;margin-top:14px}.fineprint a{text-decoration:underline;text-underline-offset:3px}.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin:48px 0 0}.feature-list article{border-top:1px solid var(--line);padding-top:22px}.feature-list h3{margin:12px 0}.feature-list p{font-size:14px;color:var(--muted)}.feature-list a{font-size:13px;color:var(--blue)}.code-section{display:grid;grid-template-columns:.8fr 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.header{background:#f2f7fbf0}
/* Documentation uses the same typography and spacing, with a quiet fixed rail. */
.docs-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:65px;padding-top:45px}.sidebar{position:sticky;top:112px;align-self:start;max-height:calc(100vh - 142px);overflow:auto;padding:0 10px 20px 0}.search-label{display:block;font-size:11px;color:var(--muted);margin-bottom:8px}.search-input{width:100%;height:40px;border:1px solid #c7d7e4;border-radius:7px;padding:0 12px;background:white;color:var(--ink);font-size:13px}.search-results{margin:10px 0;padding:12px;background:white;border:1px solid var(--line);border-radius:7px;font-size:12px}.search-results a{display:block;padding:6px 0;color:var(--blue)}.side-group{margin-top:27px}.side-group p{font:11px var(--mono);color:var(--muted);letter-spacing:1px;margin-bottom:12px}.side-group a{display:block;padding:7px 12px;border-radius:6px;font-size:13px;line-height:1.5;margin:2px 0}.side-group a[aria-current=page]{background:#e0eafa;color:#294ac0;font-weight:600}.side-group a:hover{background:#e7eef5}.docs-main{min-width:0;padding-bottom:70px}.doc-kicker{font:11px var(--mono);color:var(--muted);letter-spacing:1.5px;margin-bottom:18px}.prose h1{font-size:clamp(30px,3.5vw,46px);line-height:1.4;margin:0 0 25px}.prose h2{font-size:26px;letter-spacing:-.03em;line-height:1.45;margin:46px 0 18px}.prose h3{font-size:19px;margin:30px 0 12px}.prose p,.prose li{font-size:15px;line-height:1.95;overflow-wrap:anywhere}.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.prose code{font:12px/1.6 var(--mono);background:#e5edf5;border-radius:4px;padding:2px 5px;overflow-wrap:anywhere}.prose pre{background:var(--night);color:#e2edf7;border-radius:12px;padding:23px;overflow:auto;margin:23px 0}.prose pre code{font-size:12px;line-height:1.8;background:none;padding:0;white-space:pre;overflow-wrap:normal}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:10px;margin:25px 0}.prose table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}.prose td,.prose th{padding:12px 15px;border-bottom:1px solid var(--line);min-width:90px;vertical-align:top}.prose th{background:#e5eef7;font-weight:600}.prose img{border-radius:12px;margin:20px 0}.notice{border-left:3px solid #7e9bdf;background:#e8effa;padding:17px 21px;font-size:13px;line-height:1.9;margin:25px 0}.doc-toc{background:#e9f0f7;padding:15px 21px;border-radius:10px;margin:26px 0}.doc-toc summary{font-size:12px;cursor:pointer;color:var(--muted)}.doc-toc ul{columns:2;padding-left:20px}.doc-toc a{font-size:12px}.doc-toc li{line-height:1.6;margin:6px 0}.doc-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:30px 0}.doc-card{display:block;border:1px solid var(--line);padding:23px;border-radius:12px;background:white!important;text-decoration:none!important}.doc-card strong{display:block;font-size:17px;margin-bottom:8px;color:var(--ink)}.doc-card span{font-size:13px;color:var(--muted)}.doc-source{margin-top:55px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.empty{min-height:55vh;padding:110px 0}.empty h1{font-size:60px}
@media(min-width:1600px){.hero{padding-top:100px;padding-bottom:105px}}@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.hero{gap:30px;padding:55px 0}.hero-name{font-size:78px}.hero h1{font-size:31px}.optics{padding:18px}.optics-top,.optics-bottom{font-size:9px}.code-section{gap:35px}.docs-layout{grid-template-columns:200px minmax(0,1fr);gap:35px}.download-section{padding:35px}.section-heading p{max-width:340px}.feature-list{gap:25px}}@media(max-width:720px){.wrap{width:calc(100% - 36px)}.nav{height:68px}.brand{font-size:20px}.nav-links{gap:16px;font-size:12px}.nav-links .optional{display:none}.nav-download{padding:7px 11px}.hero{grid-template-columns:1fr;padding:45px 0;gap:30px}.hero-name{font-size:85px;margin:18px 0}.hero h1{font-size:32px}.lead{font-size:15px}.optics{transform:none;border-radius:22px;padding:19px}.optics-top,.optics-bottom{font-size:11px}.spec-strip{grid-template-columns:1fr 1fr;gap:23px;margin-bottom:65px}.spec-strip strong{font-size:20px}.section{padding-bottom:65px}.section-heading{display:block}.section-heading p{margin-top:20px;max-width:none}.film{border-radius:12px}.feature-list{grid-template-columns:1fr;gap:20px;margin-top:30px}.feature-list article{padding-top:14px}.code-section{grid-template-columns:1fr;gap:25px}.code-shell pre{padding:18px;font-size:10.5px}.download-section{padding:26px 22px;border-radius:15px}.download-heading{display:block}.download-heading .button{margin-top:12px;width:100%}.download-links{grid-template-columns:1fr;gap:13px}.footer-row{display:block}.footer-links{margin-top:20px}.docs-layout{grid-template-columns:1fr;gap:25px;padding-top:25px}.sidebar{position:static;max-height:none;padding:0}.sidebar-nav{display:flex;flex-wrap:wrap;gap:6px 20px;margin-top:15px}.side-group{margin:0}.side-group p{margin:10px 0}.side-group a{display:inline-block;font-size:12px;padding:5px 8px}.prose h1{font-size:30px}.prose h2{font-size:23px}.prose p,.prose li{font-size:14px}.doc-grid{grid-template-columns:1fr}.doc-toc ul{columns:1}.footer{margin-top:45px}.header{backdrop-filter:none;background:#f2f7fb}.download-option{padding:20px}}
.toc-toggle{display:none}
@media(max-width:720px){.hero h1 span{font-size:clamp(23px,6.5vw,29px);letter-spacing:-1px}.toc-toggle{display:block;background:transparent;border:1px solid var(--line);border-radius:7px;padding:8px 12px;margin-top:15px;width:100%;text-align:left;font-size:12px}.sidebar-nav[data-collapsed=true]{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}.button:hover{transform:none}}