:root {
  --navy: #071d30;
  --navy-2: #0a3154;
  --blue: #126aa2;
  --blue-2: #2189bd;
  --blue-pale: #eaf3f8;
  --blue-wash: #f4f8fb;
  --ink: #16232d;
  --muted: #5b6b77;
  --line: #d4dfe6;
  --line-dark: #aebfca;
  --white: #fff;
  --success: #1f6c50;
  --warm: #ad6a2d;
  --max: 1200px;
  --header: 68px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: Inter, "Segoe UI", Arial, sans-serif; line-height: 1.55; -webkit-font-smoothing: antialiased; }
img, video, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
code { font-family: Consolas, "SFMono-Regular", monospace; overflow-wrap: anywhere; }
section[id], article[id], div[id] { scroll-margin-top: calc(var(--header) + 16px); }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: fixed; top: -60px; left: 16px; z-index: 1000; padding: 10px 14px; color: white; background: var(--blue); }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 100; height: var(--header); background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.site-header.scrolled { box-shadow: 0 5px 22px rgba(7,29,48,.1); }
.header-inner { width: min(var(--max), calc(100% - 48px)); height: 100%; margin: 0 auto; display: flex; align-items: center; gap: 32px; }
.brand { margin-right: auto; display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; color: white; background: var(--navy-2); font-size: 12px; font-weight: 800; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { color: var(--navy); font-size: 15px; }
.brand-text small { margin-top: 4px; color: var(--muted); font-size: 11px; text-transform: uppercase; }
.site-nav { display: flex; gap: 26px; }
.site-nav a { color: #415562; font-size: 13px; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--blue); }
.header-contact { padding: 8px 13px; color: var(--blue); border: 1px solid #8fb8ce; font-size: 12px; font-weight: 700; }

.hero { position: relative; min-height: min(760px, calc(100vh - var(--header))); display: flex; align-items: end; overflow: hidden; color: white; background: var(--navy); }
.hero-image, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { bottom: auto; height: calc(100% + 34px); object-fit: cover; object-position: center 38%; filter: saturate(.72) contrast(1.05); }
.hero-shade { background: linear-gradient(90deg, rgba(3,19,33,.96) 0%, rgba(5,30,51,.82) 42%, rgba(5,30,51,.28) 73%, rgba(5,30,51,.1) 100%); }
.hero-content { position: relative; z-index: 1; padding-top: 100px; padding-bottom: 82px; }
.eyebrow { margin: 0 0 11px; color: var(--blue); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.eyebrow.light { color: #8dcae8; }
.hero h1 { margin: 0; font-size: clamp(66px, 10vw, 124px); line-height: .9; font-weight: 700; letter-spacing: 0; }
.hero-title { max-width: 820px; margin: 28px 0 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(25px, 3.4vw, 43px); line-height: 1.24; }
.hero-copy { max-width: 710px; margin: 23px 0 0; color: rgba(255,255,255,.76); font-size: 15px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.button { min-height: 44px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; font-size: 13px; font-weight: 750; }
.button-light { color: var(--navy); background: white; }
.button-ghost { color: white; border-color: rgba(255,255,255,.5); background: rgba(7,29,48,.18); }
.button-primary { color: white; background: var(--navy-2); }
.button:hover { filter: brightness(.93); }

.section { padding: 92px 0; }
.section-intro { margin-bottom: 44px; }
.section-intro.narrow { max-width: 800px; }
.section-intro h2, .release h2 { margin: 0; color: var(--navy); font-size: clamp(34px, 4.5vw, 54px); line-height: 1.12; font-weight: 680; }
.section-intro > p:last-child, .release p { max-width: 720px; margin: 18px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.overview-section { padding-top: 76px; background: var(--blue-wash); }
.program-steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); list-style: none; border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.program-steps li { border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.program-steps a { min-height: 300px; padding: 28px; display: flex; flex-direction: column; }
.program-steps a:hover { background: var(--blue-wash); }
.step-number { color: var(--blue-2); font-size: 12px; font-weight: 800; }
.step-name { margin-top: 46px; color: var(--navy); font-size: 24px; font-weight: 720; }
.step-result { margin-top: 7px; color: var(--blue); font-size: 14px; font-weight: 700; }
.step-note { margin-top: auto; padding-top: 34px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.system-role-map { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; }
.system-role-map a { transition: border-color .18s ease, transform .18s ease; }
.system-role-map a:hover { transform: translateY(-2px); border-color: var(--blue-2); }
.system-core-role { min-height: 370px; padding: 38px; display: flex; flex-direction: column; color: white; background: var(--navy-2); border: 1px solid var(--navy-2); }
.system-role-map h3 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-weight: 600; }
.system-core-role h3 { margin-top: 54px; font-size: clamp(42px, 6vw, 72px); line-height: 1; }
.system-core-role p { max-width: 650px; margin: 18px 0 0; color: rgba(255,255,255,.72); font-size: 16px; line-height: 1.8; }
.system-core-role strong { margin-top: auto; color: #9ed8f2; font-size: 13px; }
.role-label { color: var(--blue-2); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.system-core-role .role-label { color: #9ed8f2; }
.system-enablers { display: grid; grid-template-rows: repeat(2, 1fr); gap: 18px; }
.system-enablers a { padding: 28px; display: flex; flex-direction: column; background: var(--blue-wash); border: 1px solid var(--line-dark); }
.system-enablers h3 { margin-top: 24px; color: var(--navy); font-size: 25px; }
.system-enablers p { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.system-enablers strong { margin-top: auto; padding-top: 16px; color: var(--blue); font-size: 12px; }

.stage-blue { background: var(--blue-wash); border-top: 1px solid #e2ebf0; border-bottom: 1px solid #e2ebf0; }
.research-section { padding-top: 78px; color: white; background: var(--navy); }
.research-intro { padding-bottom: 68px; }
.research-intro h2 { max-width: 760px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(38px, 5vw, 62px); line-height: 1.08; font-weight: 600; }
.research-intro > p:last-child { max-width: 720px; margin: 18px 0 0; color: rgba(255,255,255,.68); font-size: 16px; line-height: 1.8; }
.research-chapter { padding: 82px 0; color: var(--ink); background: white; }
.research-chapter-blue { background: var(--blue-wash); }
.lingjing-primary { padding-top: 92px; background: var(--blue-wash); }
.lingjing-primary .stage-heading { grid-template-columns: 100px 1fr auto; }
.capability-chapter { padding: 72px 0; background: white; }
.capability-chapter-blue { background: var(--blue-wash); }
.capability-chapter .stage-heading { grid-template-columns: 128px 1fr auto; }
.capability-chapter .stage-heading h2 { font-size: clamp(38px, 4.7vw, 58px); }
.module-badge { padding: 7px 9px; color: var(--blue); background: var(--blue-pale); border: 1px solid #c6dce8; font-size: 12px; font-weight: 800; text-transform: uppercase; }
.enabling-research-intro { padding: 72px 0; color: white; background: #0b3a5b; border-top: 1px solid #285979; border-bottom: 1px solid #285979; }
.enabling-research-intro h2 { max-width: 820px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(34px, 4.6vw, 54px); line-height: 1.12; font-weight: 600; }
.enabling-research-intro p { max-width: 760px; margin: 18px 0 0; color: rgba(255,255,255,.7); font-size: 15px; line-height: 1.8; }
.enabler-roles { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; }
.enabler-roles span { padding: 9px 12px; color: #a8d8ed; border: 1px solid rgba(168,216,237,.35); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.research-bridge { min-height: 104px; display: grid; grid-template-columns: 190px 1fr; gap: 34px; align-items: center; }
.research-bridge span { color: #82c3e3; font-size: 12px; font-weight: 800; text-transform: uppercase; }
.research-bridge p { max-width: 850px; margin: 0; color: rgba(255,255,255,.72); font-size: 14px; line-height: 1.75; }
.stage-heading { display: grid; grid-template-columns: 60px 1fr auto; gap: 22px; align-items: start; padding-bottom: 32px; border-bottom: 1px solid var(--line-dark); }
.stage-id { color: var(--blue-2); font-size: 12px; font-weight: 800; }
.stage-heading .eyebrow { margin-bottom: 8px; }
.stage-heading h2 { margin: 0; color: var(--navy); font-size: clamp(43px, 5.5vw, 68px); line-height: .98; font-weight: 700; }
.stage-lead { margin: 13px 0 0; color: var(--navy-2); font-family: Georgia, "Times New Roman", serif; font-size: 20px; }
.verified { padding: 7px 9px; color: var(--success); background: #e3f0e9; font-size: 12px; font-weight: 800; text-transform: uppercase; }
.stage-resources { display: flex; flex-wrap: wrap; gap: 9px; margin: 20px 0 24px; }
.resource-button { min-height: 36px; padding: 0 12px; display: inline-flex; align-items: center; border: 1px solid #9cb8c8; color: var(--navy); background: #fff; font-size: 12px; font-weight: 750; }
.resource-button:hover { border-color: var(--blue); color: var(--blue); }
.resource-button-live { color: #075f4f; background: #f1faf7; border-color: #8fc8ba; }
.resource-button-live:hover { color: #064b40; border-color: #5fae9a; }
.resource-button-disabled { color: #70828c; background: #edf3f6; border-color: #c8d6de; cursor: not-allowed; }
.resource-button-disabled:hover { color: #70828c; border-color: #c8d6de; }
.stage-summary { padding: 38px 0 46px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.stage-summary > p { margin: 0; color: #40525f; font-size: 16px; line-height: 1.85; }
.facts { margin: 0; border-top: 1px solid var(--line); }
.facts div { padding: 10px 0; display: grid; grid-template-columns: 110px 1fr; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--blue); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.facts dd { margin: 0; font-size: 14px; }

.platform-overview { margin-bottom: 54px; background: white; border: 1px solid var(--line-dark); scroll-margin-top: calc(var(--header) + 16px); }
.platform-overview-front { margin-bottom: 0; box-shadow: 0 22px 60px rgba(7,29,48,.08); }
.platform-intro { padding: 38px 42px 34px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 58px; align-items: end; border-bottom: 1px solid var(--line-dark); }
.platform-intro h2, .platform-intro h3 { max-width: 670px; margin: 0; color: var(--navy); font-family: Georgia, "Times New Roman", serif; font-size: clamp(31px, 3.8vw, 48px); line-height: 1.14; font-weight: 600; }
.platform-intro > p { max-width: 620px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
.platform-architecture { margin: 0; padding: 22px 22px 0; background: #f8fbfd; }
.platform-architecture img { display: block; width: 100%; height: auto; border: 1px solid #d7e3eb; background: white; }
.platform-architecture figcaption { padding: 12px 2px 15px; display: flex; justify-content: space-between; gap: 20px; align-items: center; color: #536875; border-top: 0; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.platform-architecture figcaption a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; white-space: nowrap; }
.platform-reading { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); }
.platform-reading-work { grid-template-columns: repeat(4, 1fr); }
.platform-reading-work .platform-core { grid-column: span 2; background: var(--blue-wash); }
.platform-reading > div { min-height: 126px; padding: 22px 24px 24px; display: grid; grid-template-columns: 28px 1fr; column-gap: 10px; align-content: start; }
.platform-reading > div + div { border-left: 1px solid var(--line-dark); }
.platform-reading strong { color: var(--blue); font-size: 12px; }
.platform-reading span { color: var(--navy-2); font-size: 14px; font-weight: 750; }
.platform-reading small { grid-column: 2; margin-top: 8px; color: var(--muted); font-size: 12px; line-height: 1.65; }

.model-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.model-card { background: white; border: 1px solid var(--line-dark); }
.model-viewer { position: relative; height: 390px; overflow: hidden; background: #edf4f8; border-bottom: 1px solid var(--line); }
.model-viewer canvas { width: 100%; height: 100%; touch-action: none; }
.model-status { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 13px; pointer-events: none; }
.model-viewer.ready .model-status { display: none; }
.model-reset { position: absolute; right: 12px; bottom: 12px; padding: 7px 10px; color: var(--navy-2); background: rgba(255,255,255,.9); border: 1px solid var(--line-dark); cursor: pointer; font-size: 12px; font-weight: 700; }
.model-caption { padding: 21px 23px 23px; }
.model-caption h3, .video-card h3, .demo-caption h3, .runtime-note h3 { margin: 0; color: var(--navy); font-size: 22px; }
.model-caption > p:not(.eyebrow), .video-card > div > p:last-child, .demo-caption > p:not(.eyebrow), .runtime-note p:last-child { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.model-caption code { display: block; margin-top: 14px; color: #627784; font-size: 12px; }
.asset-download { display: inline-block; margin-top: 10px; color: var(--blue); font-size: 12px; font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.video-grid { margin-top: 20px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.video-card { background: white; border: 1px solid var(--line-dark); }
.video-card video { width: 100%; aspect-ratio: 16 / 8.6; object-fit: contain; background: var(--navy); }
.video-card > div { padding: 20px 23px 23px; }
.package-strip { margin-top: 20px; min-height: 62px; padding: 14px 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; color: #455a67; background: white; border: 1px solid var(--line); font-size: 12px; }
.package-strip span { margin-right: auto; color: var(--blue); font-weight: 800; text-transform: uppercase; }
.package-strip strong { font-weight: 650; }

.handoff { color: white; background: var(--navy); border-top: 1px solid #173e5c; border-bottom: 1px solid #173e5c; }
.handoff-inner { min-height: 118px; display: grid; grid-template-columns: 160px 1fr; gap: 40px; align-items: center; }
.handoff span { color: #82c3e3; font-size: 12px; font-weight: 800; text-transform: uppercase; }
.handoff p { max-width: 900px; margin: 0; color: rgba(255,255,255,.73); font-size: 15px; line-height: 1.75; }

.anyscene-case { margin-top: 30px; border-top: 3px solid var(--blue); }
.anyscene-case + .anyscene-case { margin-top: 74px; }
.case-heading { padding: 28px 0; display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: start; border-bottom: 1px solid var(--line); }
.case-heading h3 { max-width: 750px; margin: 0; color: var(--navy); font-size: clamp(25px, 3vw, 37px); line-height: 1.2; }
.case-heading > div:first-child > p:last-child { margin: 12px 0 0; color: var(--muted); font-size: 15px; }
.case-metrics { min-width: 330px; display: grid; grid-template-columns: auto 1fr; gap: 5px 12px; align-items: center; }
.case-metrics strong { color: var(--blue); font-size: 21px; line-height: 1.2; }
.case-metrics span { color: var(--muted); font-size: 12px; }
.case-compare-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.case-compare-grid .anyscene-case, .case-compare-grid .anyscene-case + .anyscene-case { min-width: 0; margin: 0; padding: 26px; background: white; border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.case-compare-grid .case-heading { padding: 0 0 22px; grid-template-columns: 1fr; gap: 22px; }
.case-compare-grid .case-heading h3 { font-size: clamp(23px, 2.3vw, 31px); }
.case-compare-grid .case-heading > div:first-child > p:last-child { font-size: 14px; line-height: 1.7; }
.case-compare-grid .case-metrics { min-width: 0; grid-template-columns: repeat(6, auto); gap: 5px 9px; }
.case-compare-grid .case-metrics strong { font-size: 17px; }
.case-scene-pair { padding-top: 18px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.case-scene-pair figure { margin: 0; min-width: 0; background: var(--blue-wash); border: 1px solid var(--line); }
.case-scene-pair img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.scene-views { padding-top: 20px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.scene-views figure { margin: 0; background: var(--blue-wash); border: 1px solid var(--line); }
.scene-views .view-wide { grid-column: 1 / -1; }
.scene-views img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.scene-views .view-wide img { aspect-ratio: 16 / 7; object-fit: cover; }
figcaption { padding: 10px 13px; color: #536875; border-top: 1px solid var(--line); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.asset-grid { margin-top: 26px; }
.asset-grid-compact { margin-top: 34px; }
.asset-grid-heading { margin-bottom: 14px; display: flex; justify-content: space-between; gap: 30px; align-items: end; }
.asset-grid-heading .eyebrow { margin: 0; }
.asset-grid-heading > p:last-child { max-width: 580px; margin: 0; color: var(--muted); font-size: 12px; text-align: right; }
.asset-cards { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.asset-card { min-width: 0; display: grid; grid-template-columns: 36% 64%; background: white; border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.asset-card img { width: 100%; height: 112px; object-fit: contain; background: white; }
.asset-card img + img { border-left: 1px solid var(--line); }
.asset-card span { grid-column: 1 / -1; padding: 9px 11px; color: var(--navy-2); background: var(--blue-wash); border-top: 1px solid var(--line); font-size: 12px; font-weight: 700; }

.demo-feature { display: grid; grid-template-columns: 1.4fr .6fr; background: white; border: 1px solid var(--line-dark); }
.demo-video { background: var(--navy); }
.demo-video video { width: 100%; height: 100%; min-height: 420px; object-fit: contain; }
.demo-caption { padding: 34px; align-self: center; }
.demo-caption h3 { font-size: 27px; line-height: 1.3; }
.text-link { display: inline-block; margin-top: 22px; color: var(--blue); border-bottom: 1px solid #8db4c9; font-size: 13px; font-weight: 700; }
.mission-list { margin-top: 54px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.list-heading { grid-column: 1 / -1; margin-bottom: 6px; }
.list-heading h3 { margin: 0; color: var(--navy); font-size: 32px; }
.mission-case { min-width: 0; padding: 0; display: block; background: white; border: 1px solid var(--line-dark); }
.mission-case:last-child { border-bottom: 1px solid var(--line-dark); }
.mission-images { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.mission-images img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-bottom: 1px solid var(--line); }
.mission-case > div:last-child { padding: 22px 24px 25px; }
.mission-case h4 { margin: 0; color: var(--navy); font-size: 21px; line-height: 1.3; }
.mission-case > div:last-child > p:not(.eyebrow) { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.mission-tag { display: inline-block; margin-top: 16px; padding-left: 10px; color: var(--blue); border-left: 3px solid var(--blue-2); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.runtime-note { margin-top: 28px; display: grid; grid-template-columns: 1.45fr .55fr; background: white; border: 1px solid var(--line-dark); }
.runtime-note img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; }
.runtime-note > div { padding: 30px; align-self: center; }

.release { background: white; }
.release-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.release-list { border-top: 1px solid var(--line-dark); }
.release-list > div { padding: 17px 0; display: grid; grid-template-columns: 110px 1fr; gap: 18px; border-bottom: 1px solid var(--line); }
.release-list span { color: var(--blue); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.release-list strong { font-size: 13px; line-height: 1.6; }
.release-list .button { margin-top: 22px; }
.site-footer { padding: 24px 0; color: #94a8b6; background: #041522; font-size: 12px; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; }
.footer-inner p { margin: 0; }
.video-fallback { min-height: 280px; margin: 0; display: grid; place-items: center; color: #c7d9e4; background: var(--navy); font-size: 13px; }

@media (max-width: 980px) {
  .site-nav { display: none; }
  .program-steps { grid-template-columns: 1fr; }
  .system-role-map { grid-template-columns: 1fr; }
  .system-core-role { min-height: 330px; }
  .system-enablers { grid-template-columns: repeat(2, 1fr); grid-template-rows: none; }
  .program-steps a { min-height: 220px; }
  .step-name { margin-top: 24px; }
  .stage-summary, .demo-feature, .runtime-note { grid-template-columns: 1fr; }
  .platform-intro { grid-template-columns: 1fr; gap: 24px; }
  .platform-reading-work { grid-template-columns: repeat(2, 1fr); }
  .platform-reading-work .platform-core { grid-column: 1 / -1; }
  .stage-summary { gap: 30px; }
  .demo-video video { min-height: 0; }
  .runtime-note img { min-height: 0; }
  .case-heading { grid-template-columns: 1fr; }
  .case-metrics { min-width: 0; max-width: 360px; }
  .asset-cards { grid-template-columns: repeat(2, 1fr); }
  .research-bridge { grid-template-columns: 150px 1fr; }
}

@media (max-width: 720px) {
  :root { --header: 62px; }
  .container, .header-inner { width: calc(100% - 32px); }
  .brand-text small { display: none; }
  .header-contact { padding: 7px 10px; }
  .hero { min-height: 650px; }
  .hero-image { object-position: 62% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(3,19,33,.93), rgba(5,30,51,.54)); }
  .hero-content { padding-top: 76px; padding-bottom: 58px; }
  .hero h1 { font-size: 62px; }
  .hero-title { font-size: 27px; }
  .hero-copy { font-size: 14px; }
  .section { padding: 66px 0; }
  .overview-section { padding-top: 48px; }
  .research-section { padding-top: 58px; }
  .research-intro { padding-bottom: 52px; }
  .research-intro h2 { font-size: 38px; }
  .research-chapter { padding: 64px 0; }
  .lingjing-primary { padding-top: 70px; }
  .capability-chapter { padding: 58px 0; }
  .enabling-research-intro { padding: 58px 0; }
  .enabling-research-intro h2 { font-size: 34px; }
  .research-bridge { min-height: 142px; grid-template-columns: 1fr; gap: 8px; align-content: center; }
  .section-intro h2, .release h2 { font-size: 34px; }
  .program-steps a { min-height: 210px; padding: 22px; }
  .system-core-role { min-height: 300px; padding: 28px 24px; }
  .system-core-role h3 { margin-top: 38px; font-size: 48px; }
  .system-enablers { grid-template-columns: 1fr; }
  .system-enablers a { min-height: 220px; padding: 24px; }
  .stage-heading { grid-template-columns: 1fr; gap: 8px; }
  .lingjing-primary .stage-heading, .capability-chapter .stage-heading { grid-template-columns: 1fr; }
  .stage-heading h2 { font-size: 42px; overflow-wrap: anywhere; }
  .verified { justify-self: start; margin-top: 8px; }
  .module-badge { justify-self: start; margin-top: 8px; }
  .stage-summary { padding: 30px 0 38px; }
  .platform-overview { margin-bottom: 38px; }
  .platform-intro { padding: 28px 22px 25px; }
  .platform-intro h2, .platform-intro h3 { font-size: 29px; }
  .platform-architecture { padding: 14px 14px 0; }
  .platform-architecture figcaption { align-items: flex-start; flex-direction: column; gap: 7px; }
  .platform-reading { grid-template-columns: 1fr; }
  .platform-reading-work { grid-template-columns: 1fr; }
  .platform-reading-work .platform-core { grid-column: auto; }
  .platform-reading > div { min-height: 0; padding: 18px 22px; }
  .platform-reading > div + div { border-top: 1px solid var(--line-dark); border-left: 0; }
  .model-grid, .video-grid, .scene-views, .release-grid, .case-compare-grid, .mission-list { grid-template-columns: 1fr; }
  .model-viewer { height: 350px; }
  .scene-views .view-wide { grid-column: auto; }
  .scene-views .view-wide img { aspect-ratio: 4 / 3; }
  .asset-grid-heading { display: block; }
  .asset-grid-heading > p:last-child { margin-top: 7px; text-align: left; }
  .asset-cards { grid-template-columns: 1fr; }
  .asset-card img { height: 106px; }
  .list-heading { grid-column: auto; }
  .handoff-inner { min-height: 155px; grid-template-columns: 1fr; gap: 8px; align-content: center; }
  .mission-images { grid-template-columns: 1fr; }
  .mission-case h4 { font-size: 21px; }
  .package-strip { align-items: flex-start; flex-direction: column; gap: 8px; }
  .package-strip span { margin-right: 0; margin-bottom: 5px; }
  .release-grid { gap: 38px; }
  .footer-inner { flex-direction: column; gap: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}