/* Local system fonts keep the download site independent of external services. */
:root{color-scheme:dark;--bg:#111512;--surface:#191e1a;--surface-soft:#151a16;--text:#f3f2e9;--muted:#a5ada4;--faint:#788478;--line:#2c352d;--accent:#cee89c;--ink:#222b1b;--radius:22px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:28px}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI","Microsoft YaHei UI","Microsoft YaHei",system-ui,sans-serif;font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:4px}
button,a,summary{-webkit-tap-highlight-color:transparent}
button{font:inherit}
img{display:block;max-width:100%}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{line-height:1.32;font-weight:600}
h1{font-size:clamp(38px,4.5vw,64px);letter-spacing:-2.5px;line-height:1.37;margin-bottom:23px}
h2{font-size:30px;letter-spacing:-.7px;margin-bottom:13px}
h3{font-size:19px;letter-spacing:-.3px}
p{margin-bottom:0}
[hidden]{display:none!important}
::selection{background:var(--accent);color:var(--ink)}
.site-shell{max-width:1256px;margin:auto;padding:0 52px}
.skip-link{position:fixed;left:20px;top:-90px;z-index:10;padding:10px 18px;background:var(--accent);color:var(--ink);border-radius:8px}
.skip-link:focus{top:16px;color:var(--ink)}
.site-header{height:108px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:22px}
.brand{display:inline-flex;gap:12px;align-items:center;font-size:19px;font-weight:650;white-space:nowrap;letter-spacing:.4px}
.brand-edition{font-size:10px;font-weight:400;letter-spacing:.3px;color:var(--muted);border:1px solid #3a463a;border-radius:5px;padding:3px 5px;margin-left:10px;vertical-align:middle}
.site-header nav{display:flex;align-items:center;gap:34px;font-size:13px}
.nav-link{color:var(--muted)}
.nav-download{display:flex;align-items:center;gap:16px;padding:9px 15px;border:1px solid #526049;border-radius:8px;color:var(--accent)}
.nav-download:hover{background:#232d1f}
.hero{min-height:580px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:32px;padding:70px 0 87px}
.eyebrow{color:var(--muted);font-size:10px;letter-spacing:2.3px;font-weight:600;margin-bottom:23px;display:flex;align-items:center;gap:9px}
.signal-dot{display:inline-block;flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.accent{color:var(--accent)}
.hero-description{color:var(--muted);font-size:16px;line-height:1.9}
.hero-actions{display:flex;gap:15px;align-items:center;flex-wrap:wrap;margin-top:31px}
.button{display:inline-flex;justify-content:center;align-items:center;gap:25px;min-height:48px;padding:12px 22px;font-size:14px;font-weight:600;border-radius:9px;line-height:1.5;border:1px solid transparent;transition:background-color .16s,transform .16s}
.button:hover{transform:translateY(-1px)}
.button-primary{background:var(--accent);color:var(--ink)}
.button-primary:hover{background:#e1f4bb;color:var(--ink)}
.button-primary:focus-visible{outline-color:var(--text)}
.platform-note{font-size:11px;color:var(--muted)}
.quiet-note{margin-top:20px;color:var(--faint);font-size:11px;letter-spacing:.6px}
.studio-preview{border:1px solid #3c4939;border-radius:18px;background:#1b231b;box-shadow:0 28px 75px #02090240;transform:rotate(-2deg);overflow:hidden;margin-left:12px}
.preview-top{padding:15px 21px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #303c2e;color:#c2cbbe;font-size:11px}
.tiny-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--accent);margin-right:7px;vertical-align:middle}
.preview-label{font-size:9px;color:#9aa792;letter-spacing:1px}
.preview-track{display:flex;gap:12px;align-items:center;padding:23px 21px 20px}
.track-icon{width:43px;height:43px;background:#313f2a;border:1px solid #46533c;color:var(--accent);border-radius:12px;display:grid;place-items:center;font-size:25px}
.preview-overline{display:block;font-size:7px;letter-spacing:1.5px;color:#91a085;margin-bottom:5px}
.preview-track p{font-size:18px;line-height:1.4;font-weight:600;letter-spacing:.5px}
.track-badge{margin-left:auto;font-size:9px;white-space:nowrap;color:#b0c7a2;border:1px solid #415039;border-radius:6px;padding:3px 8px}
.note-stage{display:flex;position:relative;margin:0 20px 21px;background:#131b14;border:1px solid #2f3a2b;border-radius:11px;height:208px;overflow:hidden}
.note-stage:after{content:"";position:absolute;bottom:44px;left:0;right:0;border-top:1px solid #a6c575;box-shadow:0 -2px 10px #a6c57535}
.stage-lane{width:calc(100%/7);position:relative;border-right:1px solid #283226}
.stage-lane:last-child{border-right:0}
.stage-lane span{position:absolute;bottom:9px;left:8px;right:8px;text-align:center;border:1px solid #3a4732;border-radius:5px;background:#263221;color:#d8e5ce;font-size:11px;line-height:26px}
.falling-note{position:absolute;left:10px;right:10px;height:38px;background:#b9d18e;border:1px solid #d1e6a8;border-radius:5px;opacity:.9}
.note-a{top:52px;background:#789563;border-color:#9fbd86}
.note-b{top:109px;height:51px}
.note-c{top:13px;height:54px;background:#8aa66f;border-color:#a7c688}
.note-d{top:77px;height:49px}
.note-e{top:-13px;height:34px;background:#7f9b68;border-color:#9ebb82}
.note-f{top:40px;height:28px;background:#8aa66f;border-color:#a7c688}
.note-g{top:120px;height:40px}
.preview-bottom{display:flex;gap:17px;align-items:center;padding:0 21px 18px;color:#aab7a0;font-size:9px}
kbd{display:inline-flex;align-items:center;justify-content:center;min-width:25px;padding:1px 5px;border:1px solid #46513d;background:#263020;border-radius:4px;box-shadow:0 1px 0 #060b0740;color:#e1e8d7;font-family:inherit;font-size:10px;line-height:1.8;font-weight:500}
.preview-bottom kbd{font-size:9px;min-width:24px;margin-right:4px}
.tempo{margin-left:auto;white-space:nowrap}
.feature-section{border-top:1px solid var(--line);padding:62px 0 64px}
.section-heading .eyebrow{margin-bottom:12px}
.section-heading>p:last-child{color:var(--muted);font-size:14px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin-top:31px}
.feature-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:27px 25px 25px}
.feature-number{color:var(--accent);font-size:9px;letter-spacing:1.5px}
.feature-card h3{margin:23px 0 13px}
.feature-card p{font-size:13px;color:var(--muted);line-height:1.85}
.feature-detail{display:flex;gap:8px;align-items:center;border-top:1px solid var(--line);padding-top:21px;margin-top:26px;min-height:45px;font-size:10px;color:#bbc7b4}
.detail-divider{width:1px;height:15px;background:#46513d;margin:0 4px}
.speed-marks{justify-content:space-between;color:var(--faint)}
.selected-speed{padding:2px 9px;border-radius:4px;background:#35432b;color:var(--accent)}
.catalog-section{display:grid;grid-template-columns:1.3fr 1fr;gap:100px;padding:47px 0 63px;align-items:center}
.catalog-section .eyebrow{margin-bottom:15px}
.catalog-section>div>p:last-child{font-size:14px;color:var(--muted);max-width:465px}
.catalog-note{border-left:2px solid #789854;padding:6px 0 6px 25px}
.small-label{color:var(--accent);font-size:11px;letter-spacing:1px}
.catalog-note p{font-size:15px;margin:10px 0}
.catalog-note>span:last-child{color:var(--faint);font-size:12px;display:block;max-width:330px}
.closing-section{background:#20291d;border:1px solid #3a4b2f;border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:30px;padding:37px 38px;margin:10px 0 68px}
.closing-section .eyebrow{font-size:9px;margin-bottom:10px;color:#a0b290}
.closing-section h2{font-size:27px;margin:0}
.closing-section .button{flex-shrink:0}
.site-footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:28px;padding:29px 0 34px;align-items:flex-start}
.footer-brand{font-size:13px;letter-spacing:.5px}
.site-footer p{margin-top:5px;color:var(--faint);font-size:10px}
.footer-links{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:20px;font-size:10px;color:var(--muted);padding-top:4px}
.footer-links>span{color:var(--faint)}
.download-main{max-width:1024px;margin:auto}
.download-heading{padding:66px 0 37px}
.download-heading .eyebrow{margin-bottom:18px}
.download-heading h1{font-size:44px;letter-spacing:-1.5px;margin-bottom:15px}
.download-heading>p:last-child{color:var(--muted);font-size:15px}
.download-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:30px;align-items:start}
.release-card{background:var(--surface);border:1px solid #3d4d33;border-radius:var(--radius);padding:31px}
.release-card-top{display:flex;align-items:center;gap:10px;margin-bottom:30px}
.windows-mark{display:grid;grid-template-columns:repeat(2,8px);gap:3px;transform:perspective(100px) rotateY(-11deg)}
.windows-mark i{display:block;background:var(--accent);width:8px;height:8px}
.release-platform{font-size:9px;letter-spacing:1.5px;color:#b6c3ac}
.status-pill{margin-left:auto;font-size:10px;background:#3b3525;color:#e2c58d;padding:3px 9px;border-radius:100px;border:1px solid #665534}
.status-pill.ready{background:#2c3c21;border-color:#51663d;color:var(--accent)}
.release-card h2{font-size:27px;margin-bottom:6px}
.release-subtitle{font-size:11px;color:var(--muted);letter-spacing:.3px}
.release-metadata{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:19px 0;margin:25px 0}
.release-metadata dt{font-size:10px;color:var(--faint);margin-bottom:6px}
.release-metadata dd{margin:0;font-size:12px;color:#d8dfd2;overflow-wrap:anywhere}
.release-status{background:#222a1f;border:1px solid #36432e;border-radius:11px;padding:16px 18px;margin-bottom:18px}
.release-status h3{font-size:14px;color:var(--accent);margin-bottom:7px}
.release-status p{font-size:12px;color:#aebba5;line-height:1.85}
.release-status.ready{padding:0;margin:0 0 15px;background:none;border:0}
.release-status.ready h3{font-size:13px;margin-bottom:5px}
.release-status.ready p{font-size:11px;color:var(--muted)}
.button-wide{width:100%}
.download-platform-note{color:var(--faint);font-size:11px;line-height:1.8;margin-top:14px}
.getting-started{padding:23px 0 0 18px}
.getting-started>.eyebrow{font-size:9px;margin-bottom:13px}
.getting-started h2{font-size:25px}
.steps{list-style:none;padding:0;margin:25px 0 0}
.steps li{display:flex;gap:15px;margin-bottom:21px}
.step-number{color:#96ad7d;font-size:10px;line-height:24px;letter-spacing:1px;flex-shrink:0}
.steps h3{font-size:14px;margin:0 0 6px}
.steps p{font-size:12px;color:var(--muted);max-width:300px}
.steps kbd{font-size:9px;min-width:22px;line-height:1.5}
.service-note{padding:16px 0 0;border-top:1px solid var(--line);margin-top:23px}
.service-note .small-label{color:var(--muted);font-size:10px}
.service-note p{font-size:11px;color:var(--faint);margin-top:6px}
.source-section{padding:52px 0 37px;border-bottom:1px solid var(--line)}
.compact h2{font-size:25px}
.compact>p:last-child{font-size:13px;max-width:690px}
.compact .eyebrow{font-size:9px;margin-bottom:12px}
.source-pending{border:1px dashed #3d4738;background:var(--surface-soft);border-radius:12px;padding:20px 22px;font-size:12px;color:var(--muted);margin-top:21px}
.license-note{font-size:10px;color:var(--faint);margin-top:16px;line-height:1.85}
.license-note a{text-decoration:underline;text-underline-offset:3px;color:var(--muted)}
.artifact-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:22px}
.artifact-item{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);padding:19px 21px;border-radius:12px;min-width:0}
.artifact-top{display:flex;align-items:center;justify-content:space-between;gap:15px}
.artifact-top h3{font-size:14px;margin:0}
.artifact-download{font-size:11px;color:var(--accent);white-space:nowrap}
.artifact-name{font-size:10px;color:var(--muted);margin-top:12px;overflow-wrap:anywhere}
.artifact-size{font-size:10px;color:var(--faint);margin-top:3px}
.artifact-hash{color:var(--faint);font-size:9px;line-height:1.65;overflow-wrap:anywhere;margin-top:12px;font-family:Consolas,monospace}
.faq-section{padding:41px 0 57px}
.faq-section .section-heading{margin-bottom:22px}
details{border-top:1px solid var(--line);padding:18px 1px}
details:last-child{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-size:13px;line-height:1.6;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";color:var(--muted);font-size:18px;font-weight:300}
details[open] summary:after{content:"−"}
details>div{padding:12px 28px 2px 0;color:var(--muted);font-size:12px;line-height:1.9;max-width:850px}
code{font-family:Consolas,monospace;font-size:11px;overflow-wrap:anywhere;color:#c7d7b9}
.noscript-note{font-size:12px;color:#e2c58d;margin-top:16px}
@media(min-width:1400px){.hero{min-height:610px}}
@media(max-width:1050px){.site-shell{padding:0 32px}.hero{gap:20px}.hero h1{font-size:45px}.studio-preview{margin-left:0}.track-badge{display:none}.preview-bottom{gap:10px;padding-left:16px;padding-right:16px}.feature-card{padding:22px 20px}.feature-card h3{font-size:17px}.catalog-section{gap:45px}.closing-section h2{font-size:25px}.closing-section{padding:30px}.footer-links{max-width:320px;gap:9px 16px}.release-card{padding:25px}.download-layout{gap:22px}.getting-started{padding-left:10px}}
@media(max-width:800px){.site-header{height:88px}.hero{grid-template-columns:1fr;padding:50px 0 56px;gap:43px}.hero-copy{max-width:620px}.hero h1{font-size:52px}.hero-description br{display:none}.studio-preview{max-width:540px;width:94%;margin:0 auto;transform:rotate(-1.5deg)}.track-badge{display:inline-block}.note-stage{height:212px}.preview-bottom{padding:0 21px 18px;gap:17px}.feature-section{padding-top:43px}.feature-grid{grid-template-columns:1fr;gap:13px}.feature-card{padding:23px 25px}.feature-card h3{font-size:20px;margin-top:15px}.feature-detail{margin-top:19px;justify-content:flex-start;gap:12px}.speed-marks{gap:30px}.catalog-section{grid-template-columns:1fr;gap:25px;padding:7px 0 43px}.catalog-note{padding:3px 0 3px 19px}.closing-section{align-items:flex-start;flex-direction:column;gap:23px;margin-bottom:46px}.closing-section .button{min-height:44px}.download-heading{padding-top:45px}.download-heading h1{font-size:37px}.download-layout{grid-template-columns:1fr;gap:24px}.release-card{padding:29px}.getting-started{padding:12px 5px 0}.steps{display:grid;grid-template-columns:1fr;gap:0}.steps p{max-width:none}.service-note{margin-top:8px}.source-section{padding-top:38px}.artifact-list{grid-template-columns:1fr}.site-footer{padding-top:24px}.footer-links{max-width:230px}}
@media(max-width:480px){.site-shell{padding:0 21px}.site-header{gap:10px;height:81px}.brand{gap:8px;font-size:16px}.brand img{width:29px;height:29px}.brand-edition{font-size:9px;margin-left:6px;padding:2px 4px}.site-header nav{gap:13px;font-size:11px}.nav-link{display:none}.nav-download{gap:8px;padding:7px 10px}.hero{padding-top:39px;gap:35px}.eyebrow{font-size:8px;letter-spacing:1.8px;margin-bottom:20px}.hero h1{font-size:40px;letter-spacing:-1.6px;line-height:1.4}.hero-description{font-size:14px}.hero-actions{gap:12px;margin-top:25px}.button{font-size:13px;padding:12px 17px;gap:16px}.platform-note{font-size:10px}.quiet-note{font-size:10px}.preview-top{padding:13px 15px}.preview-track{padding:19px 15px 16px;gap:10px}.preview-track p{font-size:16px}.track-badge{font-size:8px;padding:2px 6px}.track-icon{width:37px;height:37px;font-size:22px}.preview-overline{font-size:6px}.note-stage{margin:0 14px 17px;height:187px}.falling-note{left:6px;right:6px}.stage-lane span{left:5px;right:5px;font-size:10px}.preview-bottom{font-size:8px;gap:9px;padding:0 14px 15px}.preview-bottom kbd{min-width:20px;font-size:8px}.tempo{font-size:7px}.feature-section{padding-bottom:46px}h2{font-size:26px}.section-heading>p:last-child{font-size:13px}.feature-card{border-radius:17px}.catalog-section h2{font-size:25px}.closing-section{padding:26px 23px;border-radius:18px}.closing-section h2{font-size:24px;max-width:260px}.closing-section .eyebrow{font-size:8px}.site-footer{flex-direction:column;gap:17px}.footer-links{max-width:none;justify-content:flex-start;gap:10px 20px;font-size:9px}.site-footer p{font-size:9px}.download-heading{padding:38px 0 28px}.download-heading h1{font-size:31px;letter-spacing:-1px;line-height:1.5}.download-heading>p:last-child{font-size:13px}.release-card{padding:24px 21px;border-radius:18px}.release-card h2{font-size:25px}.release-metadata dd{font-size:11px}.release-status{padding:14px}.release-status p{font-size:11px}.release-status h3{font-size:13px}.release-card-top{margin-bottom:25px}.release-platform{font-size:8px}.download-platform-note{font-size:10px}.source-section{padding-top:34px}.compact h2{font-size:23px}.compact>p:last-child{font-size:12px}.source-pending{padding:17px;font-size:11px}.faq-section{padding-top:31px}.artifact-item{padding:18px}.artifact-name{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}.button:hover{transform:none}}