.proposal-header {
  position: fixed; z-index: 100; top: 14px; left: 50%; transform: translateX(-50%);
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px;
  width: min(calc(100% - 36px), 1540px); min-height: var(--header-h); padding: 10px 14px 10px 20px;
  border: 1px solid rgba(255,255,255,.2); border-radius: 999px; background: rgba(8,9,13,.86);
  box-shadow: 0 18px 80px rgba(0,0,0,.28); backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 11px; color: var(--white); text-decoration: none; font-size: 14px; font-weight: 900; letter-spacing: .18em; white-space: nowrap; }
.brand__signal { width: 14px; height: 14px; border-radius: 50%; background: var(--yellow); box-shadow: 0 0 0 7px rgba(255,198,47,.14); }
.header-left { display: flex; align-items: center; gap: 18px; }
.language-switch { display: flex; align-items: center; gap: 5px; min-height: 34px; padding: 4px 7px; border: 1px solid rgba(255,255,255,.15); border-radius: 999px; background: rgba(255,255,255,.04); color: #747a85; cursor: pointer; }
.language-switch__code { font-size: 8px; font-weight: 900; line-height: 1; letter-spacing: .04em; transition: color .2s ease; }
.language-switch__track { position: relative; width: 32px; height: 16px; border-radius: 999px; background: #555b65; box-shadow: inset 0 1px 3px rgba(0,0,0,.42); }
.language-switch__knob { position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 50%; background: var(--yellow); box-shadow: 0 1px 6px rgba(0,0,0,.45); transition: transform .22s cubic-bezier(.2,.8,.2,1); }
.language-switch[data-language="zh"] .language-switch__knob { transform: translateX(16px); }
.language-switch[data-language="en"] .language-switch__code--en,
.language-switch[data-language="zh"] .language-switch__code--zh { color: var(--yellow); }
.language-switch:hover { border-color: rgba(255,198,47,.48); }
.primary-nav { display: flex; align-items: center; justify-content: center; gap: clamp(12px, 2vw, 32px); }
.primary-nav a { position: relative; padding: 10px 0; color: #a6a7ad; text-decoration: none; font-size: 12px; font-weight: 750; letter-spacing: .04em; }
.primary-nav a::after { content: ''; position: absolute; left: 0; right: 100%; bottom: 3px; height: 2px; background: var(--yellow); transition: right .2s ease; }
.primary-nav a:hover, .primary-nav a.is-current { color: var(--white); }
.primary-nav a:hover::after, .primary-nav a.is-current::after { right: 0; }
.atmosphere { display: flex; align-items: center; gap: 9px; min-height: 44px; padding: 0 18px; border: 0; border-radius: 999px; background: var(--yellow); color: #18120a; font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; cursor: help; }
.atmosphere__bar { width: 13px; height: 9px; opacity: .55; background: repeating-linear-gradient(90deg,currentColor 0 2px,transparent 2px 4px); }
.scope-ribbon { position: fixed; z-index: 90; top: calc(var(--header-h) + 23px); right: 30px; margin: 0; color: rgba(255,255,255,.58); font-size: 8px; font-weight: 750; letter-spacing: .16em; }

.home-view { position: relative; display: grid; place-items: center; min-height: 100svh; padding: 110px 30px 92px; overflow: hidden; }
.home-view__image, .home-view__veil { position: absolute; inset: 0; width: 100%; height: 100%; }
.home-view__image { object-fit: cover; object-position: center; filter: saturate(.94) contrast(1.08); }
.home-view__veil { background: radial-gradient(circle at 50% 43%, rgba(8,8,10,.08), rgba(8,8,12,.35) 44%, rgba(7,9,16,.72) 100%), linear-gradient(90deg, rgba(21,8,0,.16), transparent 48%, rgba(0,8,28,.2)); }
.home-copy { position: relative; z-index: 3; display: flex; flex-direction: column; align-items: center; max-width: 1180px; text-align: center; }
.home-copy .eyebrow { margin-bottom: 20px; text-shadow: 0 2px 14px rgba(0,0,0,.7); }
.home-copy h1 { margin: 0; font-family: var(--serif); font-size: clamp(58px, 8.7vw, 154px); font-weight: 700; line-height: .78; letter-spacing: -.075em; text-shadow: 0 12px 40px rgba(0,0,0,.4); }
.home-outline { margin: 22px 0 0; color: transparent; -webkit-text-stroke: 1px rgba(255,239,191,.9); font-family: var(--serif); font-size: clamp(32px, 5.2vw, 92px); font-style: italic; line-height: .92; letter-spacing: -.055em; }
.home-lede { max-width: 660px; margin: 30px auto 26px; color: rgba(255,255,255,.86); font-size: clamp(14px, 1.15vw, 19px); line-height: 1.7; text-shadow: 0 3px 18px #000; }
.button--hero { min-height: 58px; padding: 0 30px; }
.chase-line { position: absolute; z-index: 2; inset: 32% -10% auto -10%; height: 340px; border: 3px dashed rgba(255,198,47,.85); border-color: rgba(255,198,47,.85) transparent transparent; border-radius: 50%; transform: rotate(3deg); pointer-events: none; }
.chase-line span { position: absolute; right: 12%; top: -10px; width: 11px; height: 11px; border-radius: 50%; background: var(--yellow); box-shadow: 0 0 30px 8px rgba(255,198,47,.7); }
.time-portals { position: absolute; z-index: 4; left: 50%; bottom: 28px; transform: translateX(-50%); display: flex; width: min(720px, calc(100% - 360px)); border: 1px solid rgba(255,255,255,.18); border-radius: 18px; overflow: hidden; background: rgba(8,9,13,.52); backdrop-filter: blur(12px); }
.time-portals a { flex: 1; display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; gap: 1px 10px; padding: 12px 18px; color: var(--white); text-decoration: none; border-right: 1px solid rgba(255,255,255,.14); }
.time-portals a:last-child { border-right: 0; }
.time-portals a:hover { background: rgba(255,198,47,.14); }
.time-portals span { grid-row: 1 / 3; align-self: center; color: var(--yellow); font-family: var(--serif); font-size: 22px; }
.time-portals strong { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.time-portals small { color: #b8bbc3; font-size: 9px; text-transform: uppercase; }
.home-meta { position: absolute; z-index: 3; bottom: 31px; margin: 0; color: rgba(255,255,255,.6); font-size: 9px; font-weight: 750; letter-spacing: .16em; }
.home-meta--left { left: 28px; }.home-meta--right { right: 28px; }

.overview-view { background: radial-gradient(circle at 80% 12%, rgba(45,127,249,.15), transparent 32%), var(--ink); }
.chapter-intro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); column-gap: 80px; align-items: end; padding: 28px 0 64px; border-bottom: 1px solid var(--line); }
.chapter-intro .eyebrow { grid-column: 1 / -1; }
.chapter-intro h1 { margin: 0; font-family: var(--serif); font-size: clamp(48px, 6vw, 92px); line-height: .96; letter-spacing: -.055em; }
.chapter-intro > p:last-child { max-width: 560px; margin: 0 0 4px; color: #b6bbc6; font-size: 17px; line-height: 1.75; }
.positioning-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 16px; margin-top: 24px; }
.position-card { min-height: 300px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.018)); }
.position-card--signal { background: var(--yellow); color: var(--ink); }
.position-card > span { display: block; margin-bottom: 62px; color: #8f95a2; font-size: 10px; font-weight: 850; letter-spacing: .16em; }
.position-card--signal > span { color: rgba(8,10,18,.58); }
.position-card h2 { margin: 0 0 18px; font-family: var(--serif); font-size: clamp(28px, 3vw, 46px); line-height: 1; letter-spacing: -.035em; }
.position-card p { margin: 0; color: #aeb4c0; line-height: 1.65; }
.position-card--signal p { color: rgba(8,10,18,.72); }
.baseline-band { display: grid; grid-template-columns: repeat(4, 1fr); margin: 22px 0 70px; border: solid var(--line); border-width: 1px 0; }
.baseline-band div { padding: 28px 18px; border-right: 1px solid var(--line); }
.baseline-band div:last-child { border-right: 0; }
.baseline-band strong { display: block; margin-bottom: 7px; font-family: var(--serif); font-size: 34px; letter-spacing: -.035em; }
.baseline-band span { color: #8c93a1; font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.journey-system { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; align-items: start; }
.journey-system__copy h2 { margin: 0 0 22px; font-family: var(--serif); font-size: clamp(38px, 4.3vw, 66px); line-height: 1; letter-spacing: -.045em; }
.journey-system__copy > p:not(.eyebrow) { color: #aeb4c0; line-height: 1.7; }
.journey-system__copy .text-link { margin-top: 24px; }
.journey-steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.journey-steps li { display: grid; grid-template-columns: 70px 1fr; gap: 18px; align-items: center; padding: 22px 6px; border-bottom: 1px solid var(--line); }
.journey-steps li > span { color: var(--yellow); font-family: var(--serif); font-size: 26px; }
.journey-steps strong, .journey-steps small { display: block; }.journey-steps strong { font-size: 17px; }.journey-steps small { margin-top: 5px; color: #858c9a; }

.gallery-view { background: #0a0d16; }
.gallery-heading { display: grid; grid-template-columns: 1fr 360px; align-items: end; gap: 60px; margin-bottom: 38px; }
.gallery-heading h1 { margin: 0; font-family: var(--serif); font-size: clamp(55px, 7vw, 104px); line-height: .85; letter-spacing: -.06em; }
.gallery-heading > p { color: #9da4b2; line-height: 1.65; }
.hall-portals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; min-height: 620px; }
.hall-portal { position: relative; overflow: hidden; min-height: 620px; border: 1px solid var(--line); border-radius: 26px; text-decoration: none; }
.hall-portal img, .hall-portal__scrim { position: absolute; inset: 0; width: 100%; height: 100%; }
.hall-portal img { object-fit: cover; transition: transform .65s cubic-bezier(.2,.8,.2,1), filter .4s ease; }
.hall-portal__scrim { background: linear-gradient(180deg, rgba(7,8,12,.08), rgba(7,8,12,.14) 40%, rgba(7,8,12,.94) 100%); }
.hall-portal__number { position: absolute; top: 24px; left: 25px; color: rgba(255,255,255,.76); font-family: var(--serif); font-size: 24px; }
.hall-portal__copy { position: absolute; right: 28px; bottom: 30px; left: 28px; }
.hall-portal__copy small, .hall-portal__copy strong, .hall-portal__copy em { display: block; }
.hall-portal__copy small { margin-bottom: 10px; color: var(--yellow); font-size: 10px; font-weight: 850; letter-spacing: .15em; }
.hall-portal__copy strong { font-family: var(--serif); font-size: clamp(34px, 3.3vw, 54px); line-height: 1; }
.hall-portal__copy em { margin-top: 13px; color: #c1c4ca; font-family: var(--serif); font-size: 16px; }
.hall-portal:hover img { transform: scale(1.045); filter: saturate(1.15); }
.hall-portal:hover { border-color: rgba(255,198,47,.7); }

.hall-view { padding-top: 0; }
.hall-scene { position: relative; min-height: 100svh; display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: end; padding: 150px 5vw 70px; overflow: hidden; }
.hall-scene > img, .scene-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hall-scene > img { object-fit: cover; }.scene-shade { background: linear-gradient(90deg, rgba(5,6,10,.92) 0%, rgba(5,6,10,.48) 50%, rgba(5,6,10,.22)), linear-gradient(0deg, rgba(5,6,10,.86), transparent 60%); }
.scene-copy, .scene-index { position: relative; z-index: 2; }
.scene-copy { max-width: 780px; }
.scene-copy h1 { margin: 0; font-family: var(--serif); font-size: clamp(70px, 9vw, 144px); line-height: .8; letter-spacing: -.07em; }
.scene-thesis { margin: 30px 0 12px; font-family: var(--serif); font-size: clamp(25px, 2.5vw, 40px); line-height: 1.1; }
.scene-story { max-width: 680px; color: #c2c6ce; font-size: 16px; line-height: 1.72; }
.program-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }.program-row span { padding: 8px 12px; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; background: rgba(5,6,10,.32); color: #d7d9de; font-size: 10px; text-transform: uppercase; }
.scene-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.scene-index { padding: 24px; border: 1px solid rgba(255,255,255,.2); border-radius: 22px; background: rgba(8,9,13,.55); backdrop-filter: blur(12px); }
.scene-index > p { margin: 0 0 18px; color: #aeb3bd; font-size: 10px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.program-link { display: flex; justify-content: space-between; gap: 20px; padding: 16px 0; border-top: 1px solid rgba(255,255,255,.14); text-decoration: none; font-size: 13px; }.program-link:hover { color: var(--yellow); }

.masterplan-view { background: linear-gradient(180deg, #0c101a, #070910); }
.masterplan-shell { width: min(calc(100% - 40px), 1660px); margin: 0 auto; padding: 58px 0 90px; }
.masterplan-heading { display: flex; justify-content: space-between; align-items: end; gap: 50px; margin-bottom: 28px; }
.masterplan-heading h1 { margin: 0; font-family: var(--serif); font-size: clamp(48px, 5.6vw, 88px); line-height: .9; letter-spacing: -.055em; }
.masterplan-disclosure { text-align: right; }.masterplan-disclosure strong, .masterplan-disclosure span { display: block; }.masterplan-disclosure strong { font-family: var(--serif); font-size: 38px; }.masterplan-disclosure span { color: #8d94a3; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.plan-toolbar { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.segmented-control { display: flex; padding: 4px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.04); }
.segmented-control button, .plan-reset { min-height: 38px; border: 0; color: #aeb4c0; background: transparent; cursor: pointer; }
.segmented-control button { padding: 0 16px; border-radius: 999px; font-size: 11px; font-weight: 800; text-transform: uppercase; }.segmented-control button.is-active { background: var(--yellow); color: var(--ink); }
.zoom-control { display: flex; align-items: center; gap: 10px; margin-left: auto; color: #8d94a3; font-size: 11px; text-transform: uppercase; }.zoom-control input { accent-color: var(--yellow); }
.plan-reset { padding: 0 12px; font-size: 11px; }.plan-reset:hover { color: var(--white); }
.plan-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 14px; }
.plan-scroll { min-width: 0; overflow: auto; max-height: 72vh; border: 1px solid var(--line); border-radius: 22px; background: #f4f4f4; overscroll-behavior: contain; }
.plan-stage { --plan-zoom: 1; position: relative; width: calc(100% * var(--plan-zoom)); min-width: 980px; aspect-ratio: 6142 / 3508; transform-origin: top left; }
.plan-stage > img, .plan-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.plan-stage > img { object-fit: contain; }
.plan-overlay { overflow: visible; }
.plan-hotspot { color: var(--yellow); cursor: pointer; }
.plan-hotspot path { fill: rgba(255,198,47,.19); stroke: currentColor; stroke-width: 18; vector-effect: non-scaling-stroke; transition: fill .18s ease; }
.plan-hotspot text { fill: #080a12; stroke: rgba(255,255,255,.75); stroke-width: 5px; paint-order: stroke; font: 900 74px var(--sans); letter-spacing: 8px; text-anchor: middle; pointer-events: none; }
.plan-hotspot--past { color: var(--magenta); }.plan-hotspot--present { color: #0575b8; }.plan-hotspot--future { color: #00aabd; }.plan-hotspot--venue { color: var(--yellow); }
.plan-hotspot:hover path, .plan-hotspot:focus path { fill: rgba(255,198,47,.42); }
.plan-hotspot:focus { outline: none; }.plan-hotspot:focus path { stroke: #111; stroke-width: 28; }
.plan-overlay[data-active-layer="halls"] .hotspot-layer--venues, .plan-overlay[data-active-layer="venues"] .hotspot-layer--halls { display: none; }
.plan-preview { min-height: 320px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(155deg, #171d2d, #0c1019); }
.plan-preview h2 { margin: 0 0 18px; font-family: var(--serif); font-size: 32px; line-height: 1; }.plan-preview > p:not(.eyebrow) { color: #9ea5b3; line-height: 1.65; }.plan-preview > span { display: block; margin-top: 34px; color: var(--yellow); font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.plan-note { max-width: 1080px; margin: 16px 0 0; color: #7f8694; font-size: 11px; line-height: 1.6; }

.venue-view { padding-top: 0; }
.venue-scene { display: grid; grid-template-columns: 48% 52%; min-height: 100svh; background: #0b0e16; }
.venue-visual { position: sticky; top: 0; height: 100svh; overflow: hidden; }.venue-visual img, .venue-visual__wash { position: absolute; inset: 0; width: 100%; height: 100%; }.venue-visual img { object-fit: cover; }.venue-visual__wash { background: linear-gradient(90deg, transparent 60%, #0b0e16), linear-gradient(0deg, rgba(5,6,10,.7), transparent 40%); }
.venue-visual__label { position: absolute; left: 26px; bottom: 22px; margin: 0; color: rgba(255,255,255,.66); font-size: 8px; font-weight: 750; letter-spacing: .14em; }
.venue-copy { padding: 150px clamp(34px, 5vw, 92px) 80px 54px; }
.venue-copy > .eyebrow { margin-top: 55px; }
.venue-copy h1 { max-width: 700px; margin: 0; font-family: var(--serif); font-size: clamp(54px, 6vw, 104px); line-height: .86; letter-spacing: -.06em; }
.venue-lede { max-width: 720px; margin: 32px 0 52px; color: #d2d5dc; font-family: var(--serif); font-size: clamp(22px, 2.2vw, 34px); line-height: 1.25; }
.venue-evidence { border-top: 1px solid var(--line); }.venue-evidence section { display: grid; grid-template-columns: 38px 170px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }.venue-evidence span { color: var(--yellow); font-family: var(--serif); font-size: 20px; }.venue-evidence h2 { margin: 0; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }.venue-evidence p { margin: 0; color: #9ea5b2; line-height: 1.65; }
.value-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }.value-strip span { padding: 10px 14px; border-radius: 999px; background: rgba(255,198,47,.12); color: var(--yellow); font-size: 10px; font-weight: 800; text-transform: uppercase; }

.delivery-view { background: radial-gradient(circle at 20% 5%, rgba(217,20,98,.12), transparent 30%), var(--ink); }
.chapter-intro--compact { grid-template-columns: 1fr .72fr; }
.phase-rail { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 44px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.phase-rail article { min-height: 380px; padding: 28px; background: #101522; }.phase-rail article > span { display: block; color: var(--yellow); font-family: var(--serif); font-size: 32px; }.phase-rail small { display: block; margin: 60px 0 12px; color: #858c9a; font-size: 9px; font-weight: 850; letter-spacing: .14em; }.phase-rail h2 { margin: 0 0 16px; font-family: var(--serif); font-size: 28px; }.phase-rail p { color: #9ba2af; line-height: 1.6; }.phase-rail em { display: block; margin-top: 32px; color: var(--yellow); font-size: 10px; font-style: normal; text-transform: uppercase; }
.release-gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 16px; }.release-gates > div { padding: 26px; border: 1px solid var(--line); border-radius: 20px; }.release-gates strong, .release-gates span { display: block; }.release-gates strong { font-family: var(--serif); font-size: 30px; }.release-gates span { margin-top: 8px; color: #8e95a2; font-size: 11px; line-height: 1.55; }

html[lang="zh-CN"] .home-copy h1,
html[lang="zh-CN"] .home-outline,
html[lang="zh-CN"] .chapter-intro h1,
html[lang="zh-CN"] .gallery-heading h1,
html[lang="zh-CN"] .scene-copy h1,
html[lang="zh-CN"] .masterplan-heading h1,
html[lang="zh-CN"] .venue-copy h1 { font-family: 'Songti SC', 'STSong', 'SimSun', serif; letter-spacing: .015em; }
html[lang="zh-CN"] .home-copy h1 { font-size: clamp(62px, 8vw, 132px); }
html[lang="zh-CN"] .home-outline { font-size: clamp(34px, 4.6vw, 78px); }

@media (max-width: 1100px) {
  .primary-nav { gap: 14px; }.primary-nav a { font-size: 10px; }
  .time-portals { width: min(660px, calc(100% - 80px)); }.home-meta { display: none; }
  .positioning-grid { grid-template-columns: 1fr 1fr; }.position-card--signal { grid-column: 1 / -1; }
  .hall-portals { min-height: 520px; }.hall-portal { min-height: 520px; }
  .plan-layout { grid-template-columns: 1fr; }.plan-preview { min-height: 0; }
  .phase-rail { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .proposal-header { top: 8px; grid-template-columns: auto 1fr; column-gap: 10px; row-gap: 0; width: calc(100% - 16px); padding: 8px 10px 8px 15px; border-radius: 22px; }
  .brand { font-size: 11px; }.brand__signal { width: 10px; height: 10px; }
  .header-left { gap: 10px; }.language-switch { gap: 3px; min-height: 30px; padding: 3px 5px; }.language-switch__track { width: 28px; }.language-switch[data-language="zh"] .language-switch__knob { transform: translateX(12px); }
  .primary-nav { grid-column: 1 / -1; order: 3; justify-content: flex-start; gap: 20px; width: 100%; overflow-x: auto; padding: 1px 5px 0; scrollbar-width: none; }.primary-nav::-webkit-scrollbar { display: none; }.primary-nav a { flex: 0 0 auto; }
  .atmosphere { justify-self: end; min-height: 34px; padding: 0 9px; font-size: 8px; white-space: nowrap; }
  .scope-ribbon { display: none; }
  .app-view { padding-top: 98px; }
  .home-view { min-height: 100svh; padding: 130px 18px 150px; }.home-view__image { object-position: 51% center; }.home-view__veil { background: linear-gradient(0deg, rgba(6,8,14,.9), rgba(6,8,14,.18) 65%, rgba(6,8,14,.55)); }
  .home-copy { width: 100%; min-width: 0; align-items: flex-start; text-align: left; }.home-copy .eyebrow { max-width: 100%; font-size: 8px; letter-spacing: .14em; }.home-copy h1 { width: 100%; max-width: 100%; font-size: clamp(44px, 14vw, 58px); line-height: .86; }.home-outline { max-width: 100%; font-size: clamp(28px, 9vw, 42px); }.home-lede { max-width: 92%; margin: 20px 0 22px; font-size: 13px; }
  .chase-line { inset: 50% -45% auto -30%; transform: rotate(18deg); }
  .time-portals { bottom: 18px; width: calc(100% - 28px); }.time-portals a { padding: 10px 8px; gap: 1px 5px; }.time-portals span { font-size: 16px; }.time-portals strong { font-size: 9px; }.time-portals small { font-size: 7px; }
  .chapter-intro, .chapter-intro--compact, .gallery-heading { grid-template-columns: 1fr; gap: 28px; }.chapter-intro { padding-top: 18px; }.chapter-intro h1 { font-size: 50px; }.chapter-intro > p:last-child { font-size: 15px; }
  .positioning-grid { grid-template-columns: 1fr; }.position-card--signal { grid-column: auto; }.position-card { min-height: 250px; }.position-card > span { margin-bottom: 40px; }
  .baseline-band { grid-template-columns: 1fr 1fr; }.baseline-band div:nth-child(2) { border-right: 0; }.baseline-band div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .journey-system { grid-template-columns: 1fr; gap: 48px; }.journey-steps li { grid-template-columns: 48px 1fr; }
  .hall-portals { grid-template-columns: 1fr; min-height: 0; }.hall-portal { min-height: 470px; }
  .hall-scene { grid-template-columns: 1fr; align-content: end; padding: 150px 18px 28px; }.scene-copy h1 { font-size: 70px; }.scene-index { margin-top: 18px; }.scene-story { font-size: 14px; }
  .masterplan-shell { width: calc(100% - 24px); padding-top: 42px; }.masterplan-heading { display: block; }.masterplan-disclosure { margin-top: 24px; text-align: left; }.plan-toolbar { flex-wrap: wrap; }.zoom-control { order: 3; width: 100%; margin-left: 0; }.zoom-control input { flex: 1; }.plan-scroll { max-height: 58vh; }.plan-stage { min-width: 800px; }
  .venue-scene { grid-template-columns: 1fr; }.venue-visual { position: relative; height: 52svh; }.venue-visual__wash { background: linear-gradient(0deg, #0b0e16, transparent 55%); }.venue-copy { padding: 32px 18px 70px; }.venue-copy > .eyebrow { margin-top: 42px; }.venue-copy h1 { font-size: 58px; }.venue-evidence section { grid-template-columns: 32px 1fr; }.venue-evidence section p { grid-column: 2; }
  .phase-rail, .release-gates { grid-template-columns: 1fr; }.phase-rail article { min-height: 300px; }.phase-rail small { margin-top: 34px; }
  html[lang="zh-CN"] .home-copy h1 { font-size: clamp(48px, 15vw, 62px); white-space: nowrap; }
  html[lang="zh-CN"] .home-outline { font-size: clamp(28px, 9vw, 40px); white-space: nowrap; }
}

@media (prefers-reduced-motion: no-preference) {
  .button, .text-link, .hall-portal, .program-link { transition: all .2s ease; }
  .home-copy { animation: home-in .8s cubic-bezier(.2,.8,.2,1) both; }
  .chase-line span { animation: signal-pulse 2.2s ease-in-out infinite; }
  @keyframes home-in { from { opacity: 0; transform: translateY(22px); } }
  @keyframes signal-pulse { 50% { transform: scale(1.7); opacity: .7; } }
}