/* Apple-inspired tokens and layout are defined here. */
:root {
  --ink: #1d1d1f;
  --secondary: #6e6e73;
  --link: #06c;
  --paper: #f5f5f7;
  --white: #fff;
  --line: rgba(29, 29, 31, .14);
  --surface: #fff;
  --canvas: #fff;
  --toggle-border: rgba(29, 29, 31, .2);
  --toggle-active: var(--ink);
  --toggle-active-ink: var(--white);
  --globalnav-height: 44px;
  --localnav-height: 52px;
  --content-width: 980px;
  --font-text: "SF Pro SC", "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --font-display: "SF Pro SC", "SF Pro Display", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
*[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--canvas); font: 17px/1.4705882353 var(--font-text); letter-spacing: normal; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { border: 0; color: inherit; font: inherit; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }
.skip-link { position: fixed; z-index: 200; top: 8px; left: 12px; padding: 8px 12px; color: var(--white); background: var(--ink); transform: translateY(-160%); }
.skip-link:focus { transform: none; }

/* Global navigation: one compact bar with direct links for each research direction. */
.global-header { position: sticky; z-index: 100; top: 0; height: var(--globalnav-height); border-bottom: 1px solid rgba(29, 29, 31, .1); background: rgba(250, 250, 252, .86); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); transition: transform .24s cubic-bezier(.28, .11, .32, 1); }
.global-header-inner { display: flex; align-items: center; height: 100%; max-width: 1024px; margin: 0 auto; padding: 0 22px; }
.brand { display: inline-flex; align-items: center; gap: 8px; flex: none; font: 600 14px/1 var(--font-display); letter-spacing: .011em; }
.global-nav { display: flex; align-items: stretch; height: 100%; margin-left: auto; }
.global-nav > a { position: relative; display: inline-flex; align-items: center; height: 100%; padding: 0 12px; color: rgba(0, 0, 0, .8); white-space: nowrap; font: 400 12px/1 var(--font-text); letter-spacing: -.01em; transition: color .2s ease; }
.global-nav > a:hover, .global-nav > a[aria-current="page"] { color: #000; }
.global-nav > a[aria-current="page"]::after { content: ""; position: absolute; right: 12px; bottom: 8px; left: 12px; height: 1px; background: var(--link); }

/* Inner page navigation. It rises to the top after the global bar leaves. */
.localnav { position: sticky; z-index: 90; top: var(--globalnav-height); height: var(--localnav-height); border-bottom: 1px solid rgba(29, 29, 31, .12); background: rgba(250, 250, 252, .8); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); transition: top .24s cubic-bezier(.28, .11, .32, 1); }
.localnav-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; max-width: var(--content-width); margin: 0 auto; padding: 0 22px; }
.localnav-title { margin: 0; white-space: nowrap; font: 600 21px/1.1428571429 var(--font-display); letter-spacing: .011em; }
.localnav-links { display: flex; align-items: stretch; height: 100%; gap: 25px; }
.localnav-links a { position: relative; display: inline-flex; align-items: center; color: var(--secondary); font-size: 12px; letter-spacing: 0; }
.localnav-links a:hover, .localnav-links a[aria-current="true"] { color: var(--ink); }
.localnav-links a[aria-current="true"]::after { content: ""; position: absolute; right: 0; bottom: 7px; left: 0; height: 1px; background: var(--link); }
body.has-localnav.page-scrolled .global-header { transform: translateY(-100%); }
body.has-localnav.page-scrolled .localnav { top: 0; }

.eyebrow, .section-kicker { margin: 0 0 18px; color: var(--link); font-size: 12px; line-height: 1.2; font-weight: 600; letter-spacing: .02em; }
.hero-title, h1 { margin: 0; color: var(--ink); font: 600 48px/1.0834933333 var(--font-display); letter-spacing: -.003em; }
.hero-intro, .intro { max-width: 700px; margin: 24px auto 0; color: var(--ink); font: 400 21px/1.381002381 var(--font-text); letter-spacing: .011em; }
.content { width: 87.5%; max-width: var(--content-width); margin: 0 auto; }
.center { text-align: center; }
.section { padding: 96px 0; }
.section.alt { background: var(--paper); }
.section-heading { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.section-heading h2 { margin: 0; font: 600 40px/1.1 var(--font-display); letter-spacing: 0; }
.section-heading p { max-width: 650px; margin: 18px auto 0; color: var(--ink); font-size: 17px; line-height: 1.55; }

/* UAV inner page: Apple-like hero, entry tiles and two-column technical modules. */
.uav-entry { padding-top: 0; }
.uav-entry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.uav-entry-tile { display: flex; align-items: flex-end; justify-content: space-between; min-height: 246px; padding: 28px; border-radius: 18px; color: var(--ink); background: var(--surface); box-shadow: 0 1px 0 rgba(29, 29, 31, .06); transition: transform .3s cubic-bezier(.2, .7, .2, 1), box-shadow .3s ease; }
.uav-entry-tile:hover { transform: translateY(-3px); box-shadow: 0 18px 38px rgba(29, 29, 31, .12); }
.uav-entry-tile h3 { max-width: 360px; margin: 30px 0 0; font: 600 24px/1.2 var(--font-display); letter-spacing: 0; }
.uav-entry-tile p:not(.eyebrow) { max-width: 360px; margin: 12px 0 0; font-size: 15px; line-height: 1.55; }
.uav-entry-tile.is-dark { color: #fff; background: #1d1d1f; }
.uav-entry-tile.is-dark p:not(.eyebrow) { color: rgba(255, 255, 255, .78); }
.uav-entry-mark { align-self: flex-start; color: var(--link); font: 600 13px/1 var(--font-text); }
.uav-section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .8fr); gap: 48px; align-items: end; margin-bottom: 54px; }
.uav-section-heading h2 { max-width: 500px; margin: 0; font: 600 40px/1.1 var(--font-display); letter-spacing: 0; }
.uav-section-heading p { max-width: 480px; margin: 0; font-size: 17px; line-height: 1.55; }
.uav-feature-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 30px; row-gap: 70px; }
.uav-feature { grid-column: span 5; }
.uav-grid-spacer { grid-column: span 2; }
.uav-feature-wide { grid-column: 1 / -1; max-width: 820px; }
.uav-icon { display: inline-flex; align-items: center; justify-content: center; width: 64px; height: 64px; border-radius: 18px; color: var(--link); background: var(--surface); font: 600 14px/1 var(--font-text); }
.uav-feature h3 { margin: 24px 0 0; font: 600 24px/1.22 var(--font-display); letter-spacing: 0; }
.article-text-wrapper { margin-top: 14px; }
.article-text-wrapper p { margin: 0 0 12px; font-size: 15px; line-height: 1.65; }
.article-text-wrapper p:last-child { margin-bottom: 0; }
.uav-media-story { padding-top: 104px; }
.uav-media-story .section-heading { margin-bottom: 54px; }
.uav-media-lead { margin: 0; overflow: hidden; border-radius: 20px; background: #111; }
.uav-media-lead img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.uav-media-lead figcaption, .uav-media-card figcaption { display: flex; justify-content: space-between; gap: 16px; padding: 14px 16px; color: var(--ink); background: var(--surface); font-size: 13px; line-height: 1.4; }
.uav-media-lead figcaption small { color: var(--secondary); font-size: 12px; }
.uav-media-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 16px; }
.uav-media-card { margin: 0; overflow: hidden; border-radius: 18px; background: var(--surface); box-shadow: 0 1px 0 rgba(29, 29, 31, .06); }
.uav-media-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; background: #111; transition: transform .7s cubic-bezier(.2, .7, .2, 1); }
.uav-media-card figcaption { display: block; padding: 17px 18px 20px; }
.uav-media-card strong, .uav-media-card span { display: block; }
.uav-media-card strong { font: 600 17px/1.25 var(--font-display); }
.uav-media-card span { margin-top: 6px; color: var(--secondary); font-size: 13px; line-height: 1.5; }
.uav-media-card:hover { box-shadow: 0 14px 32px rgba(29, 29, 31, .11); }
.uav-media-card:hover img { transform: scale(1.025); }
.uav-closing { padding-top: 0; }
.uav-closing-grid { display: grid; gap: 16px; }
.uav-closing-tile { display: grid; grid-template-columns: 1.2fr .8fr; min-height: 300px; overflow: hidden; border-radius: 18px; color: var(--ink); background: var(--surface); }
.uav-closing-tile.is-dark { color: #fff; background: #1d1d1f; }
.uav-closing-media { min-height: 300px; background: #111; }
.uav-closing-media img { width: 100%; height: 100%; min-height: 300px; object-fit: cover; }
.uav-closing-copy { display: flex; flex-direction: column; justify-content: center; padding: 40px; }
.uav-closing-copy h3 { margin: 16px 0 0; font: 600 26px/1.2 var(--font-display); letter-spacing: 0; }
.uav-closing-copy p:not(.eyebrow) { margin: 12px 0 0; font-size: 15px; line-height: 1.6; }
.uav-closing-tile.is-dark .uav-closing-copy p:not(.eyebrow) { color: rgba(255, 255, 255, .78); }
.uav-closing-copy .text-link { display: inline-block; margin-top: 24px; }
.uav-closing-tile:not(.is-dark) .uav-closing-copy { align-items: center; min-height: 270px; }
.uav-closing-mark { display: flex; align-items: center; justify-content: center; padding: 30px; color: rgba(255, 255, 255, .72); font: 600 21px/1.35 var(--font-display); letter-spacing: .04em; text-align: center; }

/* Home cover: one contained background image with readable technical copy. */
.home-hero { position: relative; isolation: isolate; display: flex; flex-direction: column; justify-content: center; width: 100%; height: min(calc(70svh - 33px), 590px); min-height: 420px; margin: 0; padding: 78px clamp(28px, 7vw, 104px) 68px; overflow: hidden; color: #fff; background: #152631 url("assets/cover/fengyun-cover-background.png") 72% center / cover no-repeat; }
.home-hero::before { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg, rgba(5, 18, 26, .84) 0%, rgba(5, 18, 26, .5) 39%, rgba(5, 18, 26, .12) 72%, rgba(5, 18, 26, .2) 100%); }
.home-hero::after { content: ""; position: absolute; z-index: -1; inset: 45% 0 0; background: linear-gradient(180deg, transparent, rgba(4, 13, 19, .48)); pointer-events: none; }
.home-hero-content { max-width: 650px; text-align: left; }
.home-brand-lockup { display: inline-flex; align-items: center; gap: 12px; }
.home-brand-mark { position: relative; display: inline-grid; flex: 0 0 72px; width: 72px; height: 72px; place-items: center; overflow: hidden; }
.home-brand-mark::before { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255, 255, 255, .58); border-radius: 17px; background: rgba(247, 251, 253, .94); box-shadow: 0 10px 28px rgba(0, 0, 0, .24); }
/* PNG visible bounds: x=197..1057, y=208..955 on a 1254px canvas. */
.home-brand-mark img { position: absolute; z-index: 1; top: 50%; left: 50%; width: 88px; height: 88px; max-width: none; object-fit: contain; transform: translate(-50%, calc(-50% + 3.2px)); }
.home-hero .eyebrow { margin-bottom: 22px; color: #b3eee2; }
.home-hero .hero-title { max-width: 650px; color: #fff; font: 600 clamp(36px, 4.2vw, 58px)/1.08 var(--font-display); letter-spacing: -.025em; }
.home-hero .hero-intro { max-width: 620px; margin: 26px 0 0; color: rgba(255, 255, 255, .9); font: 400 19px/1.58 var(--font-text); letter-spacing: .005em; }
.hero-media { width: 100%; max-width: 980px; margin: 56px auto 0; overflow: hidden; border-radius: 22px; background: var(--paper); }
.hero-media img { width: 100%; height: min(54vw, 520px); object-fit: cover; }
.hero-caption { display: flex; justify-content: space-between; padding: 12px 16px; color: var(--secondary); background: var(--paper); font-size: 12px; letter-spacing: 0; }
.home-actions { display: flex; justify-content: flex-start; align-items: center; gap: 25px; margin-top: 30px; }
.home-hero .button { color: #17242c; background: #fff; }
.home-hero .button:hover { background: #e9fffa; }
.home-hero .text-link { color: #fff; }
.home-hero-credit { position: absolute; right: clamp(22px, 4vw, 54px); bottom: 8px; margin: 0; color: rgba(255, 255, 255, .52); font-size: 8px; line-height: 1; letter-spacing: 0; }
#innovations { padding-top: 56px; scroll-margin-top: var(--globalnav-height); }
#innovations .report-heading .eyebrow { margin-bottom: 10px; }

/* Copied from Apple Environment's overview.built.css: icon font + chevron mappings. */
.icon::after, .icon::before { font-family: SF Pro Icons; color: inherit; display: inline-block; font-style: normal; font-weight: inherit; font-size: inherit; line-height: 1; text-decoration: none; position: relative; z-index: 1; }
.icon::before { display: none; }
.icon-after::after { padding-inline-start: .24em; top: 0; }
.icon-chevrondown::after, .icon-chevrondown::before { content: ""; }
.icon-external::after, .icon-external::before { content: ""; }
.button { display: inline-flex; align-items: center; gap: 10px; padding: 11px 16px; border-radius: 999px; color: var(--white); background: var(--ink); font-size: 12px; font-weight: 600; letter-spacing: 0; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); background: #000; }
.text-link, .card-link, .portal-link, .resource-link { color: var(--link); font-size: 12px; font-weight: 600; letter-spacing: 0; }
.text-link:hover, .card-link:hover, .portal-link:hover, .resource-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.innovation-grid, .flow-grid, .portal-grid, .resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.innovation-card { overflow: hidden; border-radius: 18px; background: var(--paper); transition: transform .35s cubic-bezier(.2, .7, .2, 1), box-shadow .35s ease; }
.innovation-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(29, 29, 31, .1); }
.innovation-card figure { position: relative; height: 220px; margin: 0; overflow: hidden; }
.innovation-card figure img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.2, .7, .2, 1); }
.innovation-card:hover figure img { transform: scale(1.03); }
.innovation-visual { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; align-content: center; height: 100%; padding: 26px; color: #fff; background: linear-gradient(135deg, #10233f, #145d88); }
.innovation-visual b { padding: 13px 10px; border: 1px solid rgba(255, 255, 255, .28); border-radius: 10px; font: 600 14px/1.1 var(--font-text); letter-spacing: .02em; text-align: center; }
.card-number { position: absolute; z-index: 1; top: 14px; left: 15px; color: var(--white); font-size: 12px; font-weight: 600; }
.card-body { display: flex; flex-direction: column; min-height: 245px; padding: 22px; }
.card-body h3, .portal h3, .resource-card h3 { margin: 0; font: 600 21px/1.25 var(--font-display); letter-spacing: 0; }
.card-body p, .portal p, .resource-card p { margin: 12px 0 0; color: var(--ink); font-size: 15px; line-height: 1.55; }
.card-facts { display: flex; flex-wrap: wrap; gap: 8px 14px; margin: 22px 0 0; padding: 0; list-style: none; color: var(--secondary); font-size: 12px; letter-spacing: 0; }
.card-facts li::before { content: "·"; margin-right: 5px; color: var(--link); }
.card-link { margin-top: auto; padding-top: 24px; }
.flow-card, .portal, .resource-card { padding: 24px; border-radius: 18px; background: var(--paper); }
.flow-card b { color: var(--link); font-size: 12px; }
.flow-card h3 { margin: 30px 0 0; font: 600 20px/1.25 var(--font-display); letter-spacing: 0; }
.flow-card p { margin: 10px 0 0; color: var(--ink); font-size: 15px; line-height: 1.55; }
.portal { display: flex; flex-direction: column; min-height: 220px; background: var(--surface); border: 1px solid var(--line); }
.portal.blue { color: var(--white); background: #0071e3; border-color: #0071e3; }
.portal p { color: var(--ink); }
.portal.blue p { color: var(--white); }
.portal-link { margin-top: auto; padding-top: 24px; }
.portal.blue .portal-link { color: var(--white); }

/* Innovation pages */
.research-hero { padding: 94px 0 76px; text-align: center; }
.research-hero .hero-title { max-width: 780px; margin: 0 auto; }
.research-hero .hero-intro { max-width: 760px; }
.research-meta { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 620px; margin: 38px auto 0; border-top: 1px solid var(--line); }
.research-meta div { padding: 16px 12px 0; }
.research-meta dt { color: var(--secondary); font-size: 12px; letter-spacing: 0; }
.research-meta dd { margin: 6px 0 0; font: 600 21px/1.2 var(--font-display); letter-spacing: 0; }
.research-hero .hero-media { margin-top: 52px; }
.research-hero .hero-media img { height: min(54vw, 500px); }
.two-up { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature-card { min-height: 220px; padding: 26px; border-radius: 18px; background: var(--surface); }
.feature-card h3 { margin: 34px 0 0; font: 600 24px/1.22 var(--font-display); letter-spacing: 0; }
.feature-card p { margin: 12px 0 0; color: var(--ink); font-size: 15px; line-height: 1.6; }
.algorithm-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.algorithm-card { min-height: 270px; padding: 26px; border-radius: 18px; background: var(--surface); box-shadow: 0 1px 0 rgba(29, 29, 31, .06); }
.algorithm-index { display: block; color: var(--link); font: 600 13px/1 var(--font-text); letter-spacing: .02em; }
.algorithm-card h3 { margin: 38px 0 0; font: 600 25px/1.2 var(--font-display); letter-spacing: 0; }
.algorithm-card p { margin: 14px 0 0; color: var(--ink); font-size: 15px; line-height: 1.6; }
.algorithm-chain { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 9px; margin: 28px auto 0; color: var(--link); font-size: 13px; }
.algorithm-chain span { padding: 7px 10px; border: 1px solid rgba(0, 102, 204, .22); border-radius: 999px; background: var(--surface); }
.algorithm-chain i { color: var(--secondary); font-style: normal; }
.algorithm-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.algorithm-figure { min-width: 0; margin: 0; padding: 10px; border-radius: 14px; background: var(--paper); }
.algorithm-figure img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 9px; }
.algorithm-figure figcaption { display: flex; justify-content: space-between; gap: 8px; padding: 10px 2px 0; color: var(--ink); font-size: 12px; line-height: 1.35; letter-spacing: 0; }
.algorithm-figure figcaption small { color: var(--secondary); font-size: 11px; }
.feature-gallery { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feature-gallery .algorithm-figure img { aspect-ratio: 1.45 / 1; object-fit: contain; background: #161321; }
.feature-note { margin-top: 18px; color: var(--secondary); font-size: 13px; line-height: 1.5; }
.feature-note p { margin: 0; }
.detail-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 16px; align-items: stretch; }
.detail-panel, .detail-list, .evaluation-block, .dgq-grid article { border-radius: 18px; background: var(--paper); }
.detail-panel { padding: 28px; }
.detail-panel h3 { max-width: 520px; margin: 34px 0 0; font: 600 28px/1.22 var(--font-display); letter-spacing: 0; }
.detail-panel p:not(.eyebrow) { margin: 18px 0 0; color: var(--ink); font-size: 16px; line-height: 1.7; }
.detail-list { display: grid; align-content: stretch; }
.detail-list div { display: grid; align-content: center; gap: 8px; padding: 22px 24px; border-bottom: 1px solid var(--line); }
.detail-list div:last-child { border-bottom: 0; }
.detail-list b { font: 600 17px/1.3 var(--font-display); }
.detail-list span { color: var(--ink); font-size: 14px; line-height: 1.5; }
.evaluation-block { display: grid; grid-template-columns: .8fr 1.2fr; gap: 34px; align-items: end; margin-top: 16px; padding: 26px 28px; }
.evaluation-block h3 { margin: 26px 0 0; font: 600 23px/1.25 var(--font-display); }
.evaluation-block > p { margin: 0; color: var(--ink); font-size: 15px; line-height: 1.65; }
.feature-interpretation { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 18px; }
.feature-interpretation div { padding: 14px 15px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.feature-interpretation b, .feature-interpretation span { display: block; }
.feature-interpretation b { color: var(--link); font-size: 13px; }
.feature-interpretation span { margin-top: 6px; color: var(--ink); font-size: 12px; line-height: 1.45; }
.dgq-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.dgq-grid article { min-height: 228px; padding: 26px; }
.dgq-grid article > span { color: var(--link); font-size: 12px; }
.dgq-grid h3 { margin: 30px 0 0; font: 600 22px/1.25 var(--font-display); }
.dgq-grid p { margin: 12px 0 0; color: var(--ink); font-size: 14px; line-height: 1.6; }
.metric-grid-four { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 16px; }
.metric-grid-four .metric { min-height: 138px; }
.metric-grid-four .metric strong { font-size: 23px; }
.metric-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.metric-grid-three .metric { min-height: 138px; }
.workflow { max-width: 820px; margin: 0 auto; }
.workflow-row { display: grid; grid-template-columns: 48px 190px 1fr; gap: 18px; align-items: start; padding: 22px 0; border-top: 1px solid var(--line); }
.workflow-row b { color: var(--link); font-size: 12px; }
.workflow-row h3 { margin: 0; font: 600 19px/1.3 var(--font-display); letter-spacing: 0; }
.workflow-row p { margin: 0; color: var(--ink); font-size: 15px; line-height: 1.55; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.metric { min-height: 160px; padding: 24px; border-radius: 18px; background: var(--paper); }
.metric strong { display: block; font: 600 34px/1.1 var(--font-display); letter-spacing: -.02em; }
.metric span { display: block; margin-top: 12px; color: var(--ink); font-size: 14px; line-height: 1.5; }
.technical-note { padding: 0 0 96px; }
.technical-note-box { display: flex; justify-content: space-between; gap: 30px; padding: 24px; border-radius: 16px; background: #f0f7ff; }
.technical-note-box h3 { margin: 0; font: 600 17px/1.3 var(--font-display); letter-spacing: 0; }
.technical-note-box p { max-width: 720px; margin: 8px 0 0; color: var(--ink); font-size: 14px; line-height: 1.55; }
.technical-note-box a { align-self: center; flex: none; }

/* Platform, resources, documentation and lab pages */
.simple-hero { padding: 96px 0 74px; }
.simple-hero h1 { max-width: 780px; }
.simple-hero p:not(.eyebrow) { max-width: 680px; margin: 22px 0 0; color: var(--ink); font-size: 21px; line-height: 1.45; }
.module-list { display: grid; gap: 16px; }
.module { display: grid; grid-template-columns: .75fr 1.25fr; gap: 42px; align-items: center; padding: 22px; border-radius: 18px; background: var(--paper); }
.module h2 { margin: 20px 0 0; font: 600 28px/1.2 var(--font-display); letter-spacing: 0; }
.module p { margin: 12px 0 0; color: var(--ink); font-size: 15px; line-height: 1.55; }
.module ul { margin: 20px 0 0; padding: 0; list-style: none; font-size: 13px; }
.module li { padding: 9px 0; border-top: 1px solid var(--line); }
.module-signal { display: flex; flex-direction: column; justify-content: center; min-height: 230px; padding: 28px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); }
.module-signal b { color: var(--link); font: 600 30px/1.1 var(--font-display); letter-spacing: -.02em; }
.module-signal span { margin-top: 18px; color: var(--ink); font-size: 15px; line-height: 1.6; }
.resource-card { min-height: 210px; background: var(--paper); }
.resource-card h3 { margin-top: 28px; }
.resource-link { display: inline-block; margin-top: 22px; }
.download-hero { padding-bottom: 62px; }
.download-hero-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; }
.download-hero-row h1 { max-width: 780px; }
.download-hero-row p:not(.eyebrow) { max-width: 680px; margin: 22px 0 0; font-size: 21px; line-height: 1.45; }
.download-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 16px; }
.download-card { display: flex; flex-direction: column; min-height: 300px; padding: 32px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.download-card h3 { margin: 26px 0 0; font: 600 28px/1.2 var(--font-display); letter-spacing: 0; }
.download-card > p:not(.eyebrow) { max-width: 560px; margin: 16px 0 0; font-size: 16px; line-height: 1.6; }
.download-card-featured { color: var(--white); background: #0071e3; border-color: #0071e3; }
.download-card-featured > p:not(.eyebrow) { color: var(--white); }
.download-card-featured .eyebrow { color: rgba(255, 255, 255, .8); }
.download-details { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: auto 0 24px; padding: 0; list-style: none; color: var(--secondary); font-size: 12px; }
.download-card-featured .download-details { color: rgba(255, 255, 255, .84); }
.download-details li::before { content: "·"; margin-right: 6px; }
.download-button { align-self: flex-start; border-color: var(--white); color: var(--link); background: var(--white); }
.download-button:hover { color: var(--link); background: #f5f5f7; }
.download-link { display: inline-block; margin-top: auto; padding-top: 24px; color: var(--link); font-size: 15px; font-weight: 600; }
.docs-layout { display: grid; grid-template-columns: 190px 1fr; gap: 64px; padding-bottom: 110px; }
.docs-aside { position: sticky; top: 115px; align-self: start; display: grid; gap: 11px; }
.docs-aside span { margin-bottom: 7px; color: var(--link); font-size: 12px; font-weight: 600; }
.docs-aside a { color: var(--secondary); font-size: 13px; letter-spacing: 0; }
.docs-aside a:hover { color: var(--ink); }
.docs-block { padding: 0 0 42px; margin: 0 0 42px; border-bottom: 1px solid var(--line); scroll-margin-top: 120px; }
.docs-block:last-child { margin-bottom: 0; }
.docs-block > span { color: var(--link); font-size: 12px; font-weight: 600; }
.docs-block h2 { margin: 18px 0 10px; font: 600 30px/1.2 var(--font-display); letter-spacing: 0; }
.docs-block p { max-width: 650px; margin: 0; font-size: 15px; line-height: 1.6; }
.doc-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.doc-links a { padding: 7px 10px; color: var(--link); border: 1px solid rgba(0, 102, 204, .25); border-radius: 999px; font-size: 12px; letter-spacing: 0; }
.site-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; min-height: 112px; padding: 28px max(22px, calc((100% - 1024px) / 2)); border-top: 1px solid var(--line); color: var(--secondary); font-size: 12px; letter-spacing: 0; }
.site-footer .brand { color: var(--ink); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-nav a:hover { color: var(--ink); }
.color-scheme-toggle { display: inline-flex; align-items: center; gap: 2px; padding: 2px; border: 1px solid var(--toggle-border); border-radius: 999px; }
.color-scheme-toggle label { position: relative; cursor: pointer; }
.color-scheme-toggle input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.color-scheme-toggle .text { display: block; padding: 5px 10px; border: 1px solid transparent; border-radius: 999px; color: var(--secondary); font-size: 12px; line-height: 1; white-space: nowrap; transition: color .2s ease, background-color .2s ease; }
.color-scheme-toggle input:focus-visible + .text { outline: 2px solid var(--link); outline-offset: 2px; }
.color-scheme-toggle input:checked + .text { color: var(--toggle-active-ink); background: var(--toggle-active); }

/* Apple-style adaptive palette: one semantic switch drives every surface. */
html[data-color-scheme="dark"] {
  color-scheme: dark;
  --ink: #f5f5f7;
  --secondary: #a1a1a6;
  --link: #2997ff;
  --paper: #1d1d1f;
  --surface: #1d1d1f;
  --canvas: #000;
  --line: rgba(245, 245, 247, .18);
  --toggle-border: rgba(245, 245, 247, .35);
  --toggle-active: #f5f5f7;
  --toggle-active-ink: #1d1d1f;
}
html[data-color-scheme="dark"] .global-header,
html[data-color-scheme="dark"] .localnav { border-color: rgba(245, 245, 247, .16); background: rgba(29, 29, 31, .86); }
html[data-color-scheme="dark"] .global-nav > a { color: rgba(245, 245, 247, .82); }
html[data-color-scheme="dark"] .global-nav > a:hover,
html[data-color-scheme="dark"] .global-nav > a[aria-current="page"],
html[data-color-scheme="dark"] .button { color: #1d1d1f; background: #f5f5f7; }
html[data-color-scheme="dark"] .button:hover { background: #fff; }
html[data-color-scheme="dark"] .portal.blue { color: #fff; background: #0a84ff; border-color: #0a84ff; }
html[data-color-scheme="dark"] .portal.blue p,
html[data-color-scheme="dark"] .portal.blue .portal-link { color: #fff; }
html[data-color-scheme="dark"] .technical-note-box { background: #16283b; }
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s cubic-bezier(.2, .7, .2, 1); }
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal]:nth-child(2) { transition-delay: .06s; }
[data-reveal]:nth-child(3) { transition-delay: .12s; }

@media (max-width: 1068px) {
  .hero-title, h1 { font-size: 40px; line-height: 1.1; font-weight: 600; letter-spacing: 0; }
  .section-heading h2 { font-size: 32px; line-height: 1.125; }
  .content { width: calc(100% - 44px); }
  .innovation-grid, .flow-grid, .portal-grid, .resource-grid, .metric-grid { grid-template-columns: 1fr; }
  .innovation-card { display: grid; grid-template-columns: .9fr 1.1fr; }
  .innovation-card figure { height: 100%; min-height: 220px; }
  .detail-grid, .evaluation-block { grid-template-columns: 1fr; }
  .dgq-grid { grid-template-columns: 1fr; }
  .uav-feature-grid { column-gap: 20px; }
}
@media (max-width: 734px) {
  :root { --localnav-height: 48px; }
  body { font-size: 17px; letter-spacing: 0; }
  .global-header { height: 48px; }
  .global-header-inner { padding: 0 16px; }
  .global-nav > a { height: 48px; padding: 0 8px; font-size: 12px; }
  .localnav-inner { padding: 0 16px; }
  .localnav-title { font-size: 17px; }
  .localnav-links { gap: 14px; }
  .localnav-links a { font-size: 11px; }
  .home-hero { width: 100%; height: min(calc(70svh - var(--globalnav-height)), 590px); min-height: 420px; margin-top: 0; padding: 64px 24px 56px; background-position: 78% center; }
  .research-hero, .simple-hero { padding: 72px 0 60px; }
  .download-hero-row { display: block; }
  .download-hero-row .lab-session-status { margin-top: 20px; }
  .download-grid { grid-template-columns: 1fr; }
  .download-card { min-height: 0; padding: 24px; }
  .hero-title, h1 { font-size: 32px; line-height: 1.125; letter-spacing: .004em; }
  .hero-intro, .intro, .simple-hero p:not(.eyebrow) { font-size: 19px; line-height: 1.42; }
  .section { padding: 72px 0; }
  .home-hero .hero-title { font-size: 36px; line-height: 1.12; }
  .home-hero .hero-intro { font-size: 17px; line-height: 1.55; }
  .home-actions { flex-direction: column; align-items: flex-start; gap: 17px; }
  .home-brand-lockup { gap: 10px; }
  .home-brand-mark { flex-basis: 54px; width: 54px; height: 54px; }
  .home-brand-mark::before { border-radius: 13px; }
  .home-brand-mark img { width: 68px; height: 68px; transform: translate(-50%, calc(-50% + 2.5px)); }
  .hero-media { margin-top: 38px; border-radius: 16px; }
  .hero-media img, .research-hero .hero-media img { height: 58vw; min-height: 240px; }
  .hero-caption { font-size: 11px; }
  .innovation-card { display: block; }
  .innovation-card figure { height: 210px; min-height: 0; }
  .two-up, .algorithm-grid { grid-template-columns: 1fr; }
  .algorithm-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-interpretation { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric-grid-four, .metric-grid-three { grid-template-columns: 1fr; }
  .workflow-row { grid-template-columns: 36px 1fr; gap: 10px 14px; }
  .workflow-row p { grid-column: 2; }
  .research-meta { margin-top: 30px; }
  .research-meta dd { font-size: 17px; }
  .module { grid-template-columns: 1fr; gap: 24px; padding: 16px; }
  .module h2 { font-size: 24px; }
  .docs-layout { grid-template-columns: 1fr; gap: 34px; }
  .docs-aside { position: static; }
  .technical-note-box { flex-direction: column; }
  .site-footer { flex-direction: column; align-items: flex-start; padding: 26px 16px; }
  .uav-entry-grid, .uav-section-heading { grid-template-columns: 1fr; }
  .uav-section-heading { gap: 18px; margin-bottom: 36px; }
  .uav-section-heading h2 { font-size: 32px; }
  .uav-feature, .uav-feature-wide { grid-column: 1 / -1; }
  .uav-grid-spacer { display: none; }
  .uav-media-story { padding-top: 72px; }
  .uav-media-grid { grid-template-columns: 1fr; }
  .uav-closing-tile { display: block; }
  .uav-closing-copy { padding: 28px 22px; }
  .uav-closing-mark { justify-content: flex-start; padding: 0 22px 28px; text-align: left; }
}

/* Sensor experiment lab: a compact three-column workbench. */
.lab-page { background: var(--canvas); }
.lab-gate { display: grid; min-height: calc(100vh - var(--globalnav-height) - 112px); place-items: center; padding: 86px 22px; background: radial-gradient(circle at 70% 15%, rgba(0, 102, 204, .08), transparent 34%), var(--canvas); }
.lab-gate-card { width: min(100%, 560px); padding: 44px; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: 0 28px 80px rgba(29, 29, 31, .1); }
.lab-gate-card h1 { margin: 0; font: 600 42px/1.1 var(--font-display); letter-spacing: -.02em; }
.lab-gate-card > p:not(.eyebrow) { max-width: 440px; margin: 18px 0 0; font-size: 17px; line-height: 1.6; }
.lab-gate-form { margin-top: 34px; }
.lab-gate-form > label { display: block; margin-bottom: 9px; color: var(--secondary); font-size: 12px; font-weight: 600; }
.lab-password-row { display: flex; gap: 10px; }
.lab-password-row input { min-width: 0; flex: 1; }
.form-message { min-height: 20px; margin: 10px 0 0; color: #d70015; font-size: 13px; }
.lab-gate-note { display: block; margin-top: 20px; color: var(--secondary); font-size: 12px; }
.lab-shell { padding: 72px 0 110px; }
.lab-hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-bottom: 42px; }
.lab-hero h2 { max-width: 660px; margin: 0; font: 600 46px/1.08 var(--font-display); letter-spacing: -.02em; }
.lab-hero p:not(.eyebrow) { max-width: 640px; margin: 20px 0 0; font-size: 18px; line-height: 1.55; }
.lab-session-status { display: inline-flex; align-items: center; gap: 8px; flex: none; padding-bottom: 7px; color: var(--secondary); font-size: 12px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #34c759; box-shadow: 0 0 0 4px rgba(52, 199, 89, .12); }
.text-button { padding: 0; color: var(--link); background: transparent; cursor: pointer; font-size: 12px; font-weight: 600; }
.text-button:hover { text-decoration: underline; text-underline-offset: 3px; }
.lab-workspace { display: grid; grid-template-columns: minmax(250px, .9fr) minmax(360px, 1.35fr) minmax(270px, 1fr); gap: 16px; align-items: start; }
.lab-panel { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: 0 1px 0 rgba(29, 29, 31, .04); }
.lab-panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.lab-panel-head h2 { margin: 0; font: 600 25px/1.2 var(--font-display); letter-spacing: -.01em; }
.lab-panel-head .section-kicker { margin-bottom: 8px; }
.lab-step, .lab-live-badge { padding: 6px 9px; border-radius: 999px; color: var(--secondary); background: var(--paper); font-size: 10px; font-weight: 600; letter-spacing: .04em; white-space: nowrap; }
.lab-live-badge { color: #248a3d; background: rgba(52, 199, 89, .12); }
.lab-live-badge.is-error { color: #d70015; background: rgba(255, 59, 48, .12); }
.field-label { display: block; margin: 16px 0 8px; color: var(--secondary); font-size: 12px; font-weight: 600; letter-spacing: 0; }
.field-label-row { display: flex; align-items: center; justify-content: space-between; }
.field-label-row .field-label { margin: 0 0 8px; }
.field-unit { color: var(--secondary); font-size: 11px; }
.field-control { width: 100%; min-height: 38px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px; color: var(--ink); background: var(--canvas); font: inherit; font-size: 13px; outline: none; }
.field-control:focus { border-color: var(--link); box-shadow: 0 0 0 3px rgba(0, 102, 204, .12); }
.field-help { margin: 8px 0 0; color: var(--secondary); font-size: 11px; line-height: 1.5; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.field-grid.compact { margin-top: 4px; }
.field-grid.compact .field-label { margin-top: 12px; }
.field-divider { height: 1px; margin: 22px 0 18px; background: var(--line); }
.channel-list { display: grid; gap: 7px; }
.channel-row { display: grid; grid-template-columns: 18px minmax(75px, 1fr) 76px auto; gap: 7px; align-items: center; min-width: 0; padding: 7px 8px; border-radius: 10px; background: var(--paper); }
.channel-toggle { display: inline-grid; width: 18px; height: 18px; place-items: center; cursor: pointer; }
.channel-toggle input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.channel-toggle span { width: 14px; height: 14px; border: 1px solid var(--secondary); border-radius: 4px; }
.channel-toggle input:checked + span { border-color: var(--link); background: var(--link); box-shadow: inset 0 0 0 3px var(--paper); }
.channel-name { min-width: 0; padding: 0; overflow: hidden; color: var(--ink); background: transparent; cursor: pointer; text-align: left; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.channel-name small { display: block; overflow: hidden; color: var(--secondary); text-overflow: ellipsis; font-size: 10px; }
.channel-value { width: 76px; min-height: 30px; padding: 5px 6px; border: 1px solid var(--line); border-radius: 7px; color: var(--ink); background: var(--surface); font: inherit; font-size: 12px; }
.channel-unit { color: var(--secondary); font-size: 10px; white-space: nowrap; }
.lab-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 22px; }
.lab-actions .button { padding: 10px 13px; }
.lab-actions .button.secondary { color: var(--link); border: 1px solid rgba(0, 102, 204, .26); background: transparent; }
.lab-actions .button.secondary:hover { color: var(--white); background: var(--link); }
.lab-actions .button.secondary.is-running { color: #d70015; border-color: rgba(215, 0, 21, .25); }
.lab-actions .text-button { margin-left: auto; }
.metric-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }
.metric-card { min-width: 0; padding: 12px; border: 1px solid transparent; border-radius: 12px; color: var(--ink); background: var(--paper); cursor: pointer; text-align: left; }
.metric-card:hover, .metric-card.is-active { border-color: rgba(0, 102, 204, .32); }
.metric-card span, .metric-card small { display: block; overflow: hidden; color: var(--secondary); text-overflow: ellipsis; font-size: 10px; white-space: nowrap; }
.metric-card strong { display: inline-block; margin-top: 4px; font: 600 22px/1.05 var(--font-display); letter-spacing: -.02em; }
.chart-card { position: relative; min-height: 304px; padding: 16px; border-radius: 14px; background: var(--paper); }
.chart-card-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; }
.chart-label, .chart-range { display: block; color: var(--secondary); font-size: 10px; }
.chart-card-head strong { display: block; margin-top: 4px; font-size: 14px; }
.chart-range { text-align: right; }
#telemetry-chart { display: block; width: 100%; height: 250px; margin-top: 8px; }
.chart-empty { position: absolute; right: 16px; bottom: 34px; left: 16px; margin: 0; color: var(--secondary); font-size: 12px; text-align: center; }
.observation-table-wrap { margin-top: 18px; overflow-x: auto; }
.observation-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.observation-table th { padding: 0 8px 9px; color: var(--secondary); font-size: 10px; font-weight: 600; text-align: left; }
.observation-table td { padding: 10px 8px; border-top: 1px solid var(--line); white-space: nowrap; }
.observation-table td:first-child { color: var(--ink); }
.observation-table td small { display: block; margin-top: 2px; color: var(--secondary); font-size: 10px; }
.observation-table td strong { font-weight: 600; }
.table-empty { color: var(--secondary); text-align: center; }
.quality { display: inline-block; padding: 4px 7px; border-radius: 999px; font-size: 10px; }
.quality-good { color: #248a3d; background: rgba(52, 199, 89, .12); }
.quality-suspect { color: #9a6700; background: rgba(255, 159, 10, .15); }
.quality-fault { color: #d70015; background: rgba(255, 59, 48, .12); }
.transport-switch { display: flex; gap: 5px; padding: 3px; border-radius: 10px; background: var(--paper); }
.transport-switch label { flex: 1; cursor: pointer; }
.transport-switch input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.transport-switch span { display: block; padding: 7px 4px; border-radius: 7px; color: var(--secondary); font-size: 11px; text-align: center; }
.transport-switch input:checked + span { color: var(--ink); background: var(--surface); box-shadow: 0 1px 3px rgba(29, 29, 31, .12); }
.api-fields { margin-bottom: 12px; }
.api-fields .field-label { margin-top: 13px; }
.request-meta { display: flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--secondary); font-size: 10px; }
.request-meta span { padding: 4px 6px; border-radius: 5px; color: #248a3d; background: rgba(52, 199, 89, .12); font-weight: 700; }
.request-meta code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.payload-view { min-height: 180px; max-height: 245px; margin: 9px 0 18px; padding: 13px; overflow: auto; border-radius: 10px; color: var(--ink); background: var(--paper); font: 11px/1.6 ui-monospace, SFMono-Regular, Consolas, monospace; white-space: pre-wrap; word-break: break-word; }
.response-head { display: flex; align-items: center; justify-content: space-between; color: var(--secondary); font-size: 11px; }
.event-log { display: grid; gap: 8px; max-height: 210px; margin-top: 10px; overflow: auto; }
.log-empty { margin: 0; padding: 12px 0; color: var(--secondary); font-size: 11px; }
.log-entry { display: grid; grid-template-columns: 20px 1fr auto; gap: 7px; align-items: start; padding: 9px; border-radius: 9px; background: var(--paper); }
.log-entry.is-error { background: rgba(255, 59, 48, .08); }
.log-mark { display: inline-grid; width: 18px; height: 18px; place-items: center; border-radius: 50%; color: #fff; background: #34c759; font-size: 11px; font-weight: 700; }
.log-entry.is-error .log-mark { background: #ff3b30; }
.log-entry strong, .log-entry small { display: block; }
.log-entry strong { color: var(--ink); font-size: 11px; font-weight: 600; }
.log-entry small, .log-entry time { margin-top: 3px; color: var(--secondary); font-size: 10px; line-height: 1.4; }
.log-entry time { white-space: nowrap; }
.lab-security-note { display: grid; gap: 3px; margin-top: 18px; padding: 11px; border-radius: 9px; color: var(--secondary); background: rgba(0, 102, 204, .08); font-size: 10px; line-height: 1.45; }
.lab-security-note strong { color: var(--link); font-size: 11px; }
.lab-explain { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; padding: 92px 0 0; }
.lab-explain h2 { margin: 0; font: 600 34px/1.15 var(--font-display); letter-spacing: -.02em; }
.lab-explain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lab-explain-grid article { padding-top: 15px; border-top: 1px solid var(--line); }
.lab-explain-grid b { font-size: 14px; }
.lab-explain-grid p { margin: 9px 0 0; color: var(--secondary); font-size: 13px; line-height: 1.6; }

@media (max-width: 1080px) {
  .lab-workspace { grid-template-columns: minmax(280px, .9fr) minmax(0, 1.25fr); }
  .lab-inspector { grid-column: 1 / -1; }
  .lab-inspector .event-log { max-height: 180px; }
  .lab-explain { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 734px) {
  .lab-gate { min-height: calc(100vh - 48px - 180px); padding: 54px 16px; }
  .lab-gate-card { padding: 28px 22px; border-radius: 18px; }
  .lab-gate-card h1, .lab-hero h2 { font-size: 32px; }
  .lab-password-row { display: grid; }
  .lab-shell { padding: 54px 0 76px; }
  .lab-hero { display: block; margin-bottom: 30px; }
  .lab-hero p:not(.eyebrow) { font-size: 16px; }
  .lab-session-status { margin-top: 20px; }
  .lab-workspace { grid-template-columns: 1fr; }
  .lab-inspector { grid-column: auto; }
  .lab-panel { padding: 18px; border-radius: 15px; }
  .lab-explain { padding-top: 64px; }
  .lab-explain h2 { font-size: 28px; }
  .lab-explain-grid { grid-template-columns: 1fr; gap: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* QGIS agent page: Apple-inspired hero, entry tiles and capability grid. */
.agent-page .research-hero { padding-bottom: 88px; }
.agent-hero-copy { max-width: 700px; margin: 16px auto 0; font-size: 17px; line-height: 1.6; }
.agent-meta { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 720px; margin: 38px auto 0; border-top: 1px solid var(--line); }
.agent-meta div { padding: 15px 12px 0; text-align: center; }
.agent-meta span { display: block; color: var(--secondary); font-size: 12px; letter-spacing: .02em; }
.agent-meta strong { display: block; margin-top: 6px; font: 600 17px/1.25 var(--font-display); letter-spacing: 0; }
.agent-entry-section { padding-top: 8px; }
.agent-entry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.agent-entry-card { display: flex; flex-direction: column; justify-content: space-between; min-height: 280px; padding: 28px; border-radius: 18px; color: var(--ink); background: var(--paper); transition: transform .3s cubic-bezier(.2, .7, .2, 1), box-shadow .3s ease; }
.agent-entry-card:hover { transform: translateY(-3px); box-shadow: 0 18px 38px rgba(29, 29, 31, .12); }
.agent-entry-card.is-dark { color: #fff; background: #1d1d1f; }
.agent-entry-card.is-dark p { color: rgba(255, 255, 255, .78); }
.agent-entry-card h3 { max-width: 430px; margin: 34px 0 0; font: 600 32px/1.2 var(--font-display); letter-spacing: 0; }
.agent-entry-card p { max-width: 440px; margin: 12px 0 0; font-size: 17px; line-height: 1.55; }
.agent-entry-card .text-link { display: inline-block; margin-top: 24px; }
.agent-entry-mark { align-self: flex-start; color: var(--link); font: 600 13px/1 var(--font-text); letter-spacing: .02em; }
.agent-capability-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 72px; row-gap: 64px; }
.agent-capability { min-width: 0; }
.agent-capability-wide { grid-column: 1 / -1; max-width: 820px; }
.agent-capability h3 { margin: 24px 0 0; font: 600 32px/1.22 var(--font-display); letter-spacing: 0; }
.agent-capability .article-text-wrapper { margin-top: 16px; }
.agent-capability .article-text-wrapper p { margin: 0 0 14px; color: var(--ink); font-size: 17px; line-height: 1.6; }
.agent-capability .article-text-wrapper p:last-child { margin-bottom: 0; }
.agent-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.agent-tags span { padding: 5px 9px; color: var(--secondary); border: 1px solid var(--line); border-radius: 999px; font: 12px/1 var(--font-text); letter-spacing: 0; }
.agent-process { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 22px; color: var(--link); font-size: 13px; }
.agent-process span { padding: 6px 9px; border-radius: 999px; background: var(--surface); }
.agent-process i { color: var(--secondary); font-style: normal; }
.agent-closing-grid { display: grid; gap: 16px; }
.agent-closing-card { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 32px; align-items: center; min-height: 300px; padding: 40px; border-radius: 18px; color: var(--ink); background: var(--paper); }
.agent-closing-card.is-dark { color: #fff; background: #1d1d1f; }
.agent-closing-card.is-dark p:not(.eyebrow) { color: rgba(255, 255, 255, .78); }
.agent-closing-card h3 { margin: 16px 0 0; font: 600 32px/1.2 var(--font-display); letter-spacing: 0; }
.agent-closing-card p:not(.eyebrow) { max-width: 620px; margin: 12px 0 0; font-size: 17px; line-height: 1.6; }
.agent-closing-card .text-link { display: inline-block; margin-top: 22px; }
.agent-closing-card.is-dark .text-link { color: #2997ff; }
.agent-closing-mark { color: var(--link); font: 600 27px/1.16 var(--font-display); letter-spacing: -.02em; text-align: center; }
.agent-closing-mark.is-soft { color: var(--secondary); font-size: 21px; }

@media (max-width: 1068px) {
  .agent-capability-grid { column-gap: 36px; }
  .agent-closing-card { grid-template-columns: minmax(0, 1fr) 190px; padding: 32px; }
}

@media (max-width: 734px) {
  .agent-page .research-hero { padding-bottom: 60px; }
  .agent-hero-copy { font-size: 16px; line-height: 1.55; }
  .agent-meta { grid-template-columns: repeat(2, 1fr); row-gap: 18px; margin-top: 30px; }
  .agent-meta div { padding-top: 12px; }
  .agent-entry-grid, .agent-capability-grid { grid-template-columns: 1fr; }
  .agent-entry-card { min-height: 240px; padding: 24px; }
  .agent-entry-card h3 { margin-top: 26px; font-size: 24px; }
  .agent-entry-card p, .agent-capability .article-text-wrapper p, .agent-closing-card p:not(.eyebrow) { font-size: 16px; }
  .agent-capability-wide { grid-column: auto; }
  .agent-capability h3 { font-size: 24px; }
  .agent-closing-card { display: block; min-height: 0; padding: 28px 24px; }
  .agent-closing-mark { margin-top: 30px; text-align: left; }
}

/* Content-led additions: explain the engineering chain before showing the details. */
.card-detail { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 8px 14px; margin: 20px 0 22px; padding-top: 17px; border-top: 1px solid var(--line); }
.card-detail span { color: var(--secondary); font-size: 12px; line-height: 1.4; }
.card-detail strong { color: var(--ink); font-size: 13px; font-weight: 500; line-height: 1.4; }
.project-model { background: var(--paper); }
.project-model-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 34px; }
.project-model-item { padding-top: 18px; border-top: 1px solid var(--line); }
.project-model-item h3 { margin: 22px 0 0; font: 600 26px/1.2 var(--font-display); letter-spacing: -.015em; }
.project-model-item > p { max-width: 360px; margin: 12px 0 28px; color: var(--secondary); font-size: 16px; line-height: 1.55; }
.project-model-item > div { display: grid; grid-template-columns: 66px minmax(0, 1fr); gap: 8px 12px; padding-top: 14px; border-top: 1px solid var(--line); }
.project-model-item > div b { color: var(--ink); font-size: 12px; font-weight: 600; }
.project-model-item > div span { color: var(--secondary); font-size: 12px; line-height: 1.45; }
.model-index { display: inline-block; color: var(--link); font: 600 12px/1.2 var(--font-text); letter-spacing: .03em; }
.research-breakdown { background: var(--paper); }
.research-breakdown-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 34px; }
.research-breakdown-grid article { padding-top: 18px; border-top: 1px solid var(--line); }
.research-breakdown-grid h3 { margin: 20px 0 0; font: 600 25px/1.24 var(--font-display); letter-spacing: -.012em; }
.research-breakdown-grid p { max-width: 390px; margin: 13px 0 0; color: var(--secondary); font-size: 16px; line-height: 1.6; }
.agent-pipeline { padding-top: 104px; }
.agent-pipeline .section-heading { max-width: 760px; }
.agent-core-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 72px 40px; margin-top: 64px; }
.agent-core-step { min-width: 0; }
.agent-core-step-tall { grid-row: span 2; }
.agent-core-step-wide { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .8fr); gap: 40px; align-items: start; }
.agent-core-step figure { margin: 0; }
.agent-core-step figure img { display: block; width: 100%; height: 250px; object-fit: cover; object-position: center; border-radius: 16px; background: var(--surface); }
.archive-demo-grid .agent-core-step figure img { object-fit: contain; }
.agent-core-step-tall figure img { height: 560px; object-position: center 35%; }
.agent-core-step-wide figure img { height: 330px; }
.agent-core-step figure figcaption { margin-top: 10px; color: var(--secondary); font-size: 12px; line-height: 1.4; }
.agent-core-copy { padding-top: 18px; border-top: 1px solid var(--line); }
.agent-core-copy h3 { margin: 19px 0 0; font: 600 28px/1.2 var(--font-display); letter-spacing: -.015em; }
.agent-core-copy p { max-width: 520px; margin: 13px 0 0; color: var(--secondary); font-size: 16px; line-height: 1.6; }
.agent-core-copy ul { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 20px 0 0; padding: 0; list-style: none; }
.agent-core-copy li { color: var(--ink); font-size: 13px; line-height: 1.45; }
.agent-core-copy li::before { content: "—"; margin-right: 6px; color: var(--link); }
.agent-pipeline-note { max-width: 760px; margin: 72px 0 0; padding-top: 17px; border-top: 1px solid var(--line); color: var(--secondary); font-size: 15px; line-height: 1.6; }
.agent-pipeline-note span { margin-right: 12px; color: var(--ink); font-weight: 600; }

@media (max-width: 900px) {
  .project-model-grid, .research-breakdown-grid { gap: 24px; }
  .agent-core-grid { gap: 54px 26px; }
  .agent-core-step-wide { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 734px) {
  .card-detail { gap: 7px 10px; margin-top: 16px; }
  .project-model-grid, .research-breakdown-grid { grid-template-columns: 1fr; gap: 36px; }
  .project-model-item h3, .research-breakdown-grid h3 { font-size: 23px; }
  .project-model-item > p, .research-breakdown-grid p, .agent-core-copy p { font-size: 16px; }
  .agent-pipeline { padding-top: 72px; }
  .agent-core-grid { grid-template-columns: 1fr; gap: 52px; margin-top: 42px; }
  .agent-core-step-tall { grid-row: auto; }
  .agent-core-step-wide { grid-column: auto; display: block; }
  .agent-core-step figure img, .agent-core-step-tall figure img, .agent-core-step-wide figure img { height: 220px; border-radius: 13px; }
  .agent-core-copy h3 { font-size: 24px; }
  .agent-pipeline-note { margin-top: 48px; }
}

@media (max-width: 734px) {
  .global-header-inner { padding: 0 12px; }
  .localnav-inner { gap: 18px; overflow: hidden; }
  .localnav-title { flex: none; }
  .localnav-links { min-width: 0; overflow-x: auto; scrollbar-width: none; }
  .localnav-links::-webkit-scrollbar { display: none; }
  .localnav-links a { flex: none; white-space: nowrap; }
}

/* Technical-report layouts: shared shell, page-specific internal structure. */
.report-heading { max-width: 820px; margin-right: 0; margin-left: 0; text-align: left; }
.report-heading p { max-width: 720px; margin-right: 0; margin-left: 0; }
.compact-heading { margin-top: 76px; margin-bottom: 34px; }
.technical-media-grid { margin-top: 48px; }
.compact-workflow { margin-top: 48px; }
.validation-metrics { margin-top: 48px; }
.validation-replay { margin-top: 48px; }
.compact-note { padding: 42px 0 0; }
.compact-note .technical-note-box { margin: 0; }
.dgq-section-block { margin-top: 84px; }
.representative-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-gallery-full { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.vision-routing { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px; padding-top: 104px; }
.vision-routing-source { position: absolute; top: 0; left: 50%; display: grid; width: min(100%, 460px); padding: 17px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); text-align: center; transform: translateX(-50%); }
.vision-routing-source span { font: 600 17px/1.3 var(--font-display); }
.vision-routing-source small { margin-top: 6px; color: var(--secondary); font-size: 12px; }
.vision-routing-split { position: absolute; top: 76px; right: 25%; left: 25%; height: 28px; border-top: 1px solid var(--line); border-right: 1px solid var(--line); border-left: 1px solid var(--line); }
.vision-lane { min-width: 0; padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.vision-lane-cloud { background: #f0f7ff; }
.vision-lane h3 { margin: 26px 0 0; font: 600 28px/1.2 var(--font-display); letter-spacing: -.015em; }
.vision-lane > p { margin: 15px 0 0; color: var(--ink); font-size: 16px; line-height: 1.65; }
.vision-lane dl { margin: 28px 0 0; border-top: 1px solid var(--line); }
.vision-lane dl div { display: grid; grid-template-columns: 78px minmax(0, 1fr); gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.vision-lane dt, .vision-lane dd { margin: 0; font-size: 13px; line-height: 1.5; }
.vision-lane dt { color: var(--secondary); }
.vision-lane dd { color: var(--ink); }
.vision-routing-note { grid-column: 1 / -1; max-width: 760px; margin: 0; padding: 17px 0 0; border-top: 1px solid var(--line); color: var(--secondary); font-size: 14px; line-height: 1.6; }

.validation-groups { display: grid; gap: 56px; }
.validation-group { min-width: 0; }
.validation-group-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.validation-group-head span { font: 600 21px/1.3 var(--font-display); }
.validation-group-head small { color: var(--secondary); font-size: 12px; }
.validation-group .metric { background: var(--surface); }
.state-process { margin-top: 44px; }
.agent-focus { margin-top: 18px; }
.agent-workflow { margin-right: 0; margin-left: 0; }

html[data-color-scheme="dark"] .vision-lane-cloud { background: #16283b; }

@media (max-width: 900px) {
  .vision-routing { gap: 20px; }
  .vision-lane { padding: 24px; }
}

@media (max-width: 734px) {
  .report-heading h2 { font-size: 30px; }
  .compact-heading { margin-top: 58px; }
  .vision-routing { grid-template-columns: 1fr; gap: 16px; padding-top: 94px; }
  .vision-routing-split { right: 50%; left: auto; width: 1px; height: 18px; border: 0; background: var(--line); }
  .vision-routing-note { grid-column: auto; }
  .vision-lane h3 { font-size: 24px; }
  .representative-gallery { grid-template-columns: 1fr; }
  .feature-gallery-full { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .validation-group-head { display: block; }
  .validation-group-head small { display: block; margin-top: 6px; }
  .technical-media-grid, .compact-workflow, .validation-metrics, .validation-replay { margin-top: 34px; }
}

/* Apple-style responsive navigation: keep readable type, change the interaction. */
.global-menu-toggle,
.localnav-toggle {
  display: none;
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.global-menu-toggle {
  position: relative;
  width: 40px;
  height: 40px;
  flex: none;
  margin-left: auto;
  padding: 0;
}
.global-menu-toggle .nav-menu-icon,
.global-menu-toggle .nav-menu-icon::before,
.global-menu-toggle .nav-menu-icon::after {
  position: absolute;
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform .32s cubic-bezier(.4, 0, .2, 1), top .32s cubic-bezier(.4, 0, .2, 1);
}
.global-menu-toggle .nav-menu-icon { top: 19px; left: 11px; }
.global-menu-toggle .nav-menu-icon::before,
.global-menu-toggle .nav-menu-icon::after { content: ""; left: 0; }
.global-menu-toggle .nav-menu-icon::before { top: -6px; }
.global-menu-toggle .nav-menu-icon::after { top: 6px; }
body.global-nav-open .global-menu-toggle .nav-menu-icon { background: transparent; }
body.global-nav-open .global-menu-toggle .nav-menu-icon::before { top: 0; transform: rotate(45deg); }
body.global-nav-open .global-menu-toggle .nav-menu-icon::after { top: 0; transform: rotate(-45deg); }

.localnav-toggle {
  align-items: center;
  gap: 7px;
  height: 40px;
  margin-left: auto;
  padding: 0 0 0 16px;
  color: var(--secondary);
  font-size: 14px;
  white-space: nowrap;
}
.localnav-toggle .nav-chevron {
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform .32s cubic-bezier(.4, 0, .2, 1);
}
body.localnav-open .localnav-toggle .nav-chevron { transform: rotate(225deg) translate(-1px, -1px); }

@media (max-width: 833px) {
  :root {
    --globalnav-height: 48px;
    --localnav-height: 48px;
  }

  body.global-nav-open,
  body.localnav-open { overflow: hidden; }

  .global-header { height: var(--globalnav-height); }
  .global-header-inner {
    position: relative;
    padding-inline-start: max(16px, env(safe-area-inset-left));
    padding-inline-end: max(16px, env(safe-area-inset-right));
  }
  .brand { font-size: 14px; }
  .global-menu-toggle { display: block; }
  .global-nav {
    position: fixed;
    z-index: 120;
    top: var(--globalnav-height);
    right: 0;
    bottom: 0;
    left: 0;
    display: block;
    height: auto;
    max-width: none;
    margin: 0;
    padding: 8px max(16px, env(safe-area-inset-right)) 28px max(16px, env(safe-area-inset-left));
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: rgba(250, 250, 252, .96);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .32s cubic-bezier(.4, 0, .2, 1), transform .32s cubic-bezier(.4, 0, .2, 1), visibility 0s linear .32s;
    -webkit-overflow-scrolling: touch;
  }
  body.global-nav-open .global-nav {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    transform: none;
    transition-delay: 0s;
  }
  .global-nav > a {
    display: flex;
    align-items: center;
    height: 48px;
    min-height: 48px;
    padding: 0 4px;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    font-size: 17px;
    letter-spacing: -.01em;
  }
  .global-nav > a[aria-current="page"]::after { right: 4px; bottom: 0; left: auto; width: 6px; height: 6px; border-radius: 50%; }

  .localnav { height: var(--localnav-height); }
  .localnav-inner {
    position: relative;
    justify-content: initial;
    overflow: visible;
    padding-inline-start: max(16px, env(safe-area-inset-left));
    padding-inline-end: max(16px, env(safe-area-inset-right));
  }
  .localnav-title { flex: 1 1 auto; min-width: 0; font-size: 17px; }
  .localnav-toggle { display: inline-flex; }
  .localnav-links {
    position: absolute;
    z-index: 110;
    top: 100%;
    right: 0;
    left: 0;
    display: block;
    height: auto;
    max-height: 0;
    padding: 0 max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
    overflow: hidden;
    border-bottom: 1px solid transparent;
    background: rgba(250, 250, 252, .96);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: max-height .32s cubic-bezier(.4, 0, .2, 1), opacity .24s ease, visibility 0s linear .32s, border-color .24s ease;
  }
  body.localnav-open .localnav-links {
    max-height: calc(100vh - var(--localnav-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    border-color: var(--line);
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    transition-delay: 0s;
    -webkit-overflow-scrolling: touch;
  }
  @supports (height: 100dvh) {
    body.localnav-open .localnav-links { max-height: calc(100dvh - var(--localnav-height)); }
  }
  .localnav-links a {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 44px;
    padding: 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    font-size: 14px;
  }
  .localnav-links a[aria-current="true"] { color: var(--link); }
  .localnav-links a[aria-current="true"]::after { right: 0; bottom: 0; left: auto; width: 5px; height: 5px; border-radius: 50%; }
}

/* The menu tray is fixed to the viewport. A filtered/transformed sticky
   header would otherwise become its containing block on narrow screens. */
@media (max-width: 833px) {
  body.global-nav-open .global-header {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  body.has-localnav.page-scrolled.global-nav-open .global-header {
    transform: none;
  }
}

html[data-color-scheme="dark"] .global-nav,
html[data-color-scheme="dark"] .localnav-links { background: rgba(22, 22, 23, .96); }
html[data-color-scheme="dark"] .global-nav > a,
html[data-color-scheme="dark"] .localnav-links a { border-color: rgba(245, 245, 247, .16); color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  .global-menu-toggle .nav-menu-icon,
  .global-menu-toggle .nav-menu-icon::before,
  .global-menu-toggle .nav-menu-icon::after,
  .localnav-toggle .nav-chevron,
  .global-nav,
  .localnav-links { transition-duration: .01ms !important; }
}