/* Shared final typography and spacing for the product and download pages. */
:root{--copy:#adb8ae;--subtle:#98a69c;--content-width:1200px}
body,button{font-family:"Avenir Next",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
body{font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-weight:600;text-wrap:balance}p{text-wrap:pretty}
.wrap{width:calc(100% - 96px);max-width:var(--content-width)}
.nav-shell{width:calc(100% - 96px);max-width:1320px;gap:32px}
.header .brand.brand-lockup{width:270px;height:76px;flex-shrink:0}
.header .brand.brand-lockup img{width:270px;height:81px}
.header nav{margin-left:auto;gap:30px;align-items:center}
.header nav a{font-size:14px;font-weight:500;white-space:nowrap}
.header nav .nav-download{display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:10px 16px;min-height:44px;background:#f2f0e9;color:#19211b;border-radius:10px;font-size:14px;line-height:1.5;letter-spacing:0;font-weight:500}
.header nav .nav-download:hover{background:#dbe4d7;color:#19211b}
.header nav .nav-download.active{background:#dbe4d7;color:#19211b}
.header nav .nav-download span{display:inline;font-size:17px;font-weight:400}
.nav-actions{gap:0}.button{font-size:16px;font-weight:500;border-radius:10px;min-height:52px;line-height:1.5}
.button span,.text-link span{font-weight:400}.text-link{font-size:16px;font-weight:500}
.hero h1{font-size:clamp(64px,8.2vw,128px);font-weight:600;letter-spacing:-.045em;line-height:1.15;margin:34px 0 30px}
.hero-description{font-size:clamp(17px,1.45vw,21px);line-height:1.9;color:#c3ccbe}
.hero-actions{gap:32px;margin-top:36px}.hero-actions .button{font-size:16px;font-weight:500;min-height:54px;padding:15px 26px}
.hero-actions .text-link{font-size:16px}.platform-note{font-size:14px;color:#aab99e;margin-top:28px}
.eyebrow,.chapter-number,.chapter-meta{font-size:12px;font-weight:500;letter-spacing:1.7px}
.marketing-manifesto h2,.editorial-heading h2,.chapter h2,.download-section h2,.risk-heading h2{font-size:clamp(38px,4.7vw,64px);line-height:1.25;letter-spacing:-.035em;font-weight:600}
.marketing-manifesto>p,.editorial-heading>p,.download-heading>p:last-child{font-size:18px;line-height:1.85;color:var(--copy)}
.editorial-heading{margin-bottom:56px}.chapter{padding:96px 0}.chapter-top{margin-bottom:34px}
.story-copy h3{font-size:clamp(30px,3vw,40px);line-height:1.35;letter-spacing:-.03em}
.story-copy>p{font-size:17px;line-height:1.9;color:var(--copy)}
.insight-story,.luna-benefit{gap:64px;padding:88px 0}
.editorial-features p,.event-narrative p,.decision-outcome p{font-size:16px;line-height:1.9;color:var(--copy)}
.editorial-features h3,.event-narrative h3{font-size:23px;font-weight:600;letter-spacing:-.02em}
.decision-outcome h4{font-size:clamp(32px,3.6vw,46px);letter-spacing:-.03em;font-weight:600}
.story-kicker,.illustration-note,.demo-note,.luna-caption,.event-caption,.product-caption{font-size:13px;line-height:1.8;color:var(--subtle)}
.scenario-switch button{font-size:14px;font-weight:500;min-height:44px}
.risk-grid h3{font-size:23px}.risk-grid p,.risk-heading>p:last-child{font-size:16px;line-height:1.85;color:var(--copy)}
.download-section{padding:96px 0}.download-heading{max-width:760px}.download-foot{margin-top:28px}.download-foot .button{display:inline-flex;gap:24px;align-items:center;color:#17211b}
.faq-heading{font-size:25px;letter-spacing:-.025em;margin-top:72px}.faq{margin-top:22px}
.faq summary{font-size:17px;font-weight:500;padding:23px 0;line-height:1.65;gap:20px}.faq details>p{font-size:16px;line-height:1.9;color:var(--copy);padding:0 40px 24px 0;max-width:900px}
.faq details>p a{color:#c6f785}.faq summary>span{font-weight:400;font-size:21px;flex-shrink:0}
.footer{padding-top:44px}.footer-top>p{font-size:16px;color:var(--copy)}.risk-disclosure{font-size:14px;line-height:1.85;color:var(--subtle);max-width:960px}.footer-bottom{font-size:13px;color:var(--subtle);padding-top:24px}
/* Introductions belong to the edition; colored cards belong to the system. */
.download-hero{padding:64px 0 64px}.download-hero h1{font-size:clamp(52px,6vw,80px);line-height:1.18;margin:26px 0 22px}.download-lead{font-size:19px}
.edition-jump a{font-size:15px;padding:10px 20px;min-height:44px}.edition-jump small{font-size:13px;color:#a7b5a4}.download-device-note{font-size:13px;color:var(--subtle)}
.versions{gap:28px}.edition-column{gap:24px}.edition-heading{padding:12px 0 28px;min-height:285px}
.edition-index,.edition-state{font-size:12px}.edition-title-row h2{font-size:40px;font-weight:600}.edition-title-row h2 span{font-size:22px;font-weight:500;line-height:1.5}.edition-heading>p{font-size:16px;line-height:1.85;color:var(--copy);max-width:480px}
.edition-features span,.edition-features small{font-size:12px}.edition-art{width:116px}
.release-card{padding:28px;border-radius:18px}.release-card::before{display:none}
.release-card-top{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:14px;align-items:start;min-height:58px}
.release-card-top .os-icon{margin-top:5px}.release-card h3{font-size:24px;font-weight:600;letter-spacing:-.025em;line-height:1.4}.release-card h3 span{font-size:14px;margin-left:7px;font-weight:400}.release-card-top p{font-size:12px;line-height:1.7;margin-top:4px}
.download-page .device-recommendation{position:static;font-size:12px;line-height:1.6;padding:3px 7px;font-weight:400;margin:4px 0 0;border-radius:5px}
.release-description{font-size:16px;line-height:1.85;min-height:60px;max-width:none;margin-top:22px}
.release-download{font-size:16px;font-weight:500;min-height:52px;margin-top:26px;padding:13px 17px;line-height:1.5;letter-spacing:0}.release-download>span{font-size:20px;font-weight:400}
.release-meta{font-size:12px;line-height:1.8;margin-top:15px;gap:6px 12px}.release-signing{font-size:12px;margin-top:6px;line-height:1.8}.release-checksum{font-size:12px;margin-top:15px}.release-checksum summary{min-height:30px;align-items:center}.release-checksum code{font-size:12px}
.edition-more,.web3-scope{font-size:13px;line-height:1.85;color:var(--copy);max-width:none}.web3-scope{padding:0}
.mt5-prerequisite{margin-top:80px;padding:36px;gap:36px}.prerequisite-copy .eyebrow{font-size:12px}.prerequisite-copy h2{font-size:30px;font-weight:600;line-height:1.4}.prerequisite-copy p{font-size:16px;color:var(--copy)}
.official-mt5-link{font-size:15px;line-height:1.7;padding:16px 20px}.official-mt5-link small{font-size:12px;color:var(--subtle)}
.download-guide{padding-top:80px;padding-bottom:64px}.guide-heading h2,.download-faq h2{font-size:38px;font-weight:600;line-height:1.35;letter-spacing:-.03em}.guide-heading>p:last-child{font-size:16px;color:var(--copy)}
.guide-steps{gap:36px;margin-top:32px}.guide-steps h3{font-size:22px;font-weight:600}.guide-steps p{font-size:16px;line-height:1.9;color:var(--copy)}.guide-steps a{font-size:14px}.guide-steps>article>span{font-size:13px}
.download-faq{padding-top:24px;padding-bottom:80px}.download-page .faq{margin-top:24px}
@media(max-width:1100px){.header nav{gap:20px}.header .brand.brand-lockup{width:240px}.header .brand.brand-lockup img{width:240px;height:72px}.edition-title-row{gap:14px}.edition-art{width:90px}.release-card{padding:24px}.release-card-top{grid-template-columns:28px minmax(0,1fr);gap:12px}.download-page .device-recommendation{grid-column:2;justify-self:start;margin:0}.release-description{margin-top:18px}.mt5-prerequisite{align-items:flex-start}.official-mt5-link{white-space:normal;max-width:290px}}
@media(max-width:1000px){.wrap,.nav-shell{width:calc(100% - 64px)}.header nav{margin-left:0;align-items:stretch;padding:20px 32px;gap:0}.header nav a{font-size:16px;padding:14px 0}.header nav .nav-download{font-size:16px;justify-content:space-between;margin-top:10px;padding:12px 16px}.nav-actions{margin-left:auto}.menu-toggle{min-width:44px;min-height:44px;padding:10px}.insight-story,.luna-benefit{gap:40px}.release-card h3{font-size:23px}.edition-title-row h2 span{font-size:20px}.guide-steps{gap:24px}}
@media(max-width:800px){.chapter,.download-section{padding:72px 0}.editorial-heading{margin-bottom:40px}.insight-story,.luna-benefit{padding:64px 0}.marketing-manifesto>p,.editorial-heading>p{font-size:17px}.mt5-prerequisite{gap:28px}.release-card-top{grid-template-columns:32px minmax(0,1fr) auto}.download-page .device-recommendation{grid-column:auto;margin-top:4px}.edition-heading{min-height:0}.download-guide{padding-top:64px}.guide-steps h3{font-size:21px}.prerequisite-copy h2{font-size:28px}}
@media(max-width:540px){.wrap,.nav-shell{width:calc(100% - 40px)}.header .brand.brand-lockup{width:180px;height:54px}.header .brand.brand-lockup img{width:180px;height:54px}.header nav{padding:20px}.hero h1{font-size:clamp(44px,11.8vw,64px);letter-spacing:-.04em;margin:28px 0 24px}.hero-description{font-size:16px;line-height:1.9}.hero-actions{margin-top:28px;gap:20px}.hero-actions .button{font-size:16px;padding:14px 24px}.hero-actions .text-link{font-size:15px}.platform-note{font-size:13px;gap:10px}.hero .eyebrow{font-size:11px;gap:10px}.eyebrow-line{width:18px}
.marketing-manifesto h2,.editorial-heading h2,.chapter h2,.download-section h2,.risk-heading h2{font-size:36px;letter-spacing:-.03em;line-height:1.35}.story-copy h3{font-size:30px}.story-copy>p{font-size:16px}.chapter,.download-section{padding:60px 0}.insight-story,.luna-benefit{padding:48px 0;gap:30px}.editorial-features h3,.event-narrative h3,.risk-grid h3{font-size:21px}.faq-heading{font-size:23px;margin-top:56px}.faq summary{font-size:16px;padding:20px 0}.faq details>p{font-size:16px;padding-right:0}.download-heading>p:last-child{font-size:16px}.risk-disclosure{font-size:13px}.footer-top .brand.brand-lockup{width:220px;height:66px}.footer-top .brand.brand-lockup img{width:220px;height:66px}
.download-hero{padding:44px 0 48px}.download-hero h1{font-size:clamp(42px,11vw,58px)}.download-lead{font-size:17px}.edition-jump{gap:10px;flex-wrap:wrap}.edition-jump a{font-size:14px;padding:10px 15px}.edition-jump small{font-size:12px}.edition-title-row h2{font-size:36px}.edition-title-row h2 span{font-size:20px}.edition-heading-top{gap:10px}.edition-index{font-size:11px;letter-spacing:1px}.edition-state{font-size:11px}.edition-art{width:84px}.edition-heading>p{font-size:16px}.release-card{padding:24px}.release-card-top{grid-template-columns:28px minmax(0,1fr);gap:12px}.release-card h3{font-size:23px}.release-card h3 span{font-size:14px}.download-page .device-recommendation{grid-column:2;justify-self:start;margin:0}.release-card-top p{font-size:12px}.release-description{min-height:0}.release-download{font-size:16px;margin-top:24px}.release-meta{font-size:12px}.mt5-prerequisite{padding:28px 24px;margin-top:56px}.prerequisite-copy h2{font-size:26px}.prerequisite-copy p{font-size:16px}.official-mt5-link{width:100%;max-width:none;margin-left:0;font-size:15px;padding:16px}.prerequisite-brand img{width:190px}.guide-heading h2,.download-faq h2{font-size:30px}.download-guide{padding:56px 0 40px}.guide-steps{gap:28px}.guide-steps p{font-size:16px}.download-faq{padding:24px 0 56px}}
/* Diagram captions and narrative annotations stay legible at every size. */
.chapter-meta{color:var(--subtle)}.editorial-heading .muted{color:#bbc6b5}
.art-caption,.timeframe-study figcaption,.event-release-note{font-size:13px;line-height:1.8;color:var(--subtle)}
.cinema-copy p,.location-heading>p,.luna-thought>p{font-size:17px;line-height:1.9;color:var(--copy)}
.cinema-copy h3,.location-heading h3,.luna-thought h3{font-size:clamp(30px,3vw,40px);font-weight:600;letter-spacing:-.03em;line-height:1.35}
.editorial-features h4,.event-narrative h4{font-size:23px;font-weight:600;line-height:1.45;letter-spacing:-.02em}
.study-readings p,.boundary-reading p{font-size:15px;line-height:1.85;color:var(--copy)}.boundary-reading h5{font-size:17px;font-weight:500}
.study-kicker,.study-readings span,.landscape-foot span,.interpretation-now>span,.boundary-index{font-size:13px;color:var(--subtle)}.study-badge{font-size:12px}
.context-flow,.context-flow span,.context-flow strong{font-size:14px;color:#b6c3ac}.context-flow strong{font-weight:500}.context-flow i{color:#96a489}
.luna-wordmark>span{font-size:13px;font-weight:400;color:var(--subtle)}
.decision-outcome>span,.decision-boundary span{font-size:13px;color:var(--subtle)}
[data-story-scene]{font-size:14px;font-weight:500;min-height:44px}
.hero-effect-picker button,.motion-toggle{font-size:12px;min-height:36px}
.event-time-art p,.event-copy>p{font-size:17px;color:var(--copy)}
@media(max-width:540px){.cinema-copy p,.location-heading>p,.luna-thought>p,.event-time-art p,.event-copy>p{font-size:16px}.cinema-copy h3,.location-heading h3,.luna-thought h3{font-size:30px}.editorial-features h4,.event-narrative h4{font-size:21px}.context-flow,.context-flow span,.context-flow strong{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}