:root {
  --bg: #111a1d;
  --panel: #162226;
  --ink: #ebe3d5;
  --muted: #a7aaa4;
  --rule: #6f7068;
  --accent: #c7c2aa;
  --page: min(1440px, calc(100vw - 48px));
  --display: Impact, Haettenschweiler, "Arial Narrow Bold", "Arial Narrow", sans-serif;
  --reading: "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--bg); color-scheme: dark; }
body { margin: 0; background: radial-gradient(circle at 68% 25%, #223237 0, var(--bg) 45%, #0e1719 100%); color: var(--ink); font-family: var(--reading); line-break: strict; word-break: normal; }
a { color: inherit; text-underline-offset: .2em; }
a:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 20; left: 1rem; top: 1rem; padding: .7rem 1rem; background: var(--ink); color: var(--bg); transform: translateY(-180%); }
.skip-link:focus { transform: none; }
.topline { width: var(--page); min-height: 36px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--rule); font: .66rem/1 var(--reading); letter-spacing: .08em; }
.topline a { text-decoration: none; }
.topline p { margin: 0; color: var(--muted); }
main, .footer { width: var(--page); margin-inline: auto; }

.opening { display: grid; grid-template-columns: 205px minmax(0, 1fr); gap: 0; }
.title-rail { padding: 24px 24px 40px 0; border-right: 1px solid var(--rule); }
.rail-kicker { margin: 0 0 16px; color: var(--muted); font-size: .52rem; letter-spacing: .08em; }
.title-rail h1 { margin: 0; font-family: var(--display); font-size: clamp(3.1rem, 4.25vw, 4.15rem); font-stretch: condensed; font-weight: 900; letter-spacing: -.025em; line-height: .84; }
.title-rail h1 span { display: block; }
.ratio-line { margin: 15px 0 26px; font: .82rem/1.4 var(--reading); letter-spacing: .03em; }
.lead { margin: 0 0 28px; max-width: 12rem; font-size: .82rem; line-height: 1.8; }
.rail-facts { display: grid; gap: 19px; }
.rail-facts h2 { margin: 0 0 5px; color: var(--muted); font-size: .62rem; font-weight: 500; }
.rail-facts p { margin: 0; font-size: .79rem; line-height: 1.7; }
.exhibition-field { min-width: 0; padding-left: 0; }

.main-visual { position: relative; margin: 0; padding: 0; }
.main-visual > canvas, .fallback-horizon { width: 100%; aspect-ratio: 16 / 5.05; display: block; border-bottom: 1px solid var(--rule); }
.main-visual > canvas { position: relative; z-index: 1; background: transparent; }
.fallback-horizon { position: absolute; inset: 0; z-index: 0; width: 100%; height: auto; background: radial-gradient(ellipse at 50% 46%, rgba(240,240,236,.55), transparent 20%), repeating-linear-gradient(176deg, transparent 0 14%, rgba(235,235,228,.18) 15%, transparent 16% 21%), linear-gradient(180deg, #9da0a0 0 38%, #5b6061 45%, #d1d0ca 49%, #4a5051 53%, #20292b 74%, #131d20 100%); }
[data-webgl="unavailable"] .main-visual > canvas, [data-webgl="failed"] .main-visual > canvas, [data-webgl="lost"] .main-visual > canvas, [data-webgl="restore-required"] .main-visual > canvas { display: none; }
[data-webgl="unavailable"] .fallback-horizon, [data-webgl="failed"] .fallback-horizon, [data-webgl="lost"] .fallback-horizon, [data-webgl="restore-required"] .fallback-horizon { position: relative; }
.main-visual figcaption { min-height: 50px; display: flex; align-items: center; gap: .8rem; padding: 10px 2px 10px; color: var(--ink); font-size: .66rem; letter-spacing: .01em; }
.main-visual figcaption span { color: var(--muted); }
.mobile-facts { display: none; }

.participants { padding: 8px 0 42px; }
.participant-heading { display: flex; justify-content: space-between; align-items: baseline; padding: 0 0 10px; border-bottom: 1px solid var(--rule); }
.participant-heading h2, .participant-heading p { margin: 0; font-size: .58rem; font-weight: 500; letter-spacing: .08em; color: var(--muted); }
.participant-grid { list-style: none; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); margin: 0; padding: 0; }
.participant-grid li { min-width: 0; min-height: 104px; padding: 17px 14px 14px 0; border-bottom: 1px solid rgba(111,112,104,.6); }
.participant-grid li:not(:nth-child(6n + 1)) { border-left: 1px solid rgba(111,112,104,.6); padding-left: 14px; }
.participant-grid a, .participant-grid li { display: flex; align-items: flex-start; gap: 8px; text-decoration: none; }
.participant-grid a { width: 100%; }
.participant-grid a:hover strong { text-decoration: underline; }
.person-icon { flex: 0 0 1.25rem; aspect-ratio: 1; border: 1px solid var(--accent); border-radius: 50%; position: relative; margin-top: 1px; opacity: .85; }
.person-icon::before, .person-icon::after { content: ""; position: absolute; left: 50%; transform: translateX(-50%); border: 1px solid currentColor; }
.person-icon::before { width: 4px; height: 4px; top: 3px; border-radius: 50%; }
.person-icon::after { width: 8px; height: 4px; bottom: 3px; border-radius: 50% 50% 20% 20%; }
.person-text { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.person-text strong { font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: .93rem; font-weight: 500; white-space: normal; }
.person-text small { color: var(--muted); font-size: .57rem; overflow-wrap: anywhere; }
.person-text em { color: #c8c8bf; font-size: .55rem; font-style: normal; line-height: 1.45; }

.format-chapter { padding: 20px 0 52px; border-top: 1px solid var(--rule); }
.chapter-heading { display: flex; align-items: baseline; gap: 1rem; }
.chapter-heading h2 { margin: 0; font-size: .72rem; font-weight: 500; letter-spacing: .07em; }
.chapter-heading p { margin: 0; color: var(--muted); font-size: .55rem; }
.format-strip { display: grid; grid-template-columns: 1.1fr 1fr .74fr .62fr 1.8fr; align-items: end; gap: clamp(18px, 5vw, 70px); max-width: 1050px; margin: 10px auto 0; }
.format-strip figure { display: flex; flex-direction: column-reverse; gap: 7px; align-items: center; margin: 0; }
.format-strip figcaption { font: .85rem/1 var(--reading); }
.format-image { width: 100%; border: 1px solid var(--rule); overflow: hidden; background: linear-gradient(158deg, #272f31 0 42%, #b7b5ae 43% 45%, #505759 46% 56%, #1a2427 58%); }
.format-image span { display: block; width: 130%; height: 35%; margin: 47% 0 0 -15%; border-top: 2px solid rgba(235,227,213,.55); transform: rotate(-7deg); }
.ratio-32 { aspect-ratio: 3 / 2; }
.ratio-43 { aspect-ratio: 4 / 3; }
.ratio-67 { aspect-ratio: 6 / 7; }
.ratio-69 { aspect-ratio: 6 / 9; }
.ratio-6524 { aspect-ratio: 65 / 24; }

.ratio-gate { display: grid; grid-template-columns: 240px 1fr; align-items: center; gap: 50px; padding: 24px 0 72px; border-top: 1px solid var(--rule); }
.gate-copy h2 { margin: 0 0 12px; font-size: .76rem; letter-spacing: .07em; }
.gate-copy p { margin: 0; color: var(--muted); font-size: .68rem; line-height: 1.75; }
.gate-frames { min-height: 176px; display: grid; grid-template-columns: 1.1fr 1fr .74fr .62fr 1.8fr; gap: 26px; align-items: center; }
.gate { display: block; border: 1px solid var(--accent); outline: 1px dashed rgba(199,194,170,.42); outline-offset: 6px; position: relative; }
.gate::after { content: "+"; position: absolute; inset: 0; display: grid; place-items: center; color: var(--accent); }
.gate-32 { aspect-ratio: 3 / 2; }.gate-43 { aspect-ratio: 4 / 3; }.gate-67 { aspect-ratio: 6 / 7; }.gate-69 { aspect-ratio: 6 / 9; }.gate-wide { aspect-ratio: 65 / 24; }
.footer { display: flex; justify-content: space-between; padding: 18px 0 38px; border-top: 1px solid var(--rule); color: var(--muted); font-size: .62rem; }
.footer p { margin: 0; }

@media (max-width: 1100px) {
  :root { --page: min(100vw - 32px, 1000px); }
  .opening { grid-template-columns: 100%; }
  .title-rail { border-right: 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 1fr 1.4fr; gap: 24px 50px; padding: 28px 0; }
  .rail-kicker { grid-column: 1 / -1; margin: 0; }
  .title-rail h1 { font-size: clamp(4rem, 9vw, 7rem); }
  .ratio-line, .lead { grid-column: 1; }
  .ratio-line { margin: 0; align-self: end; }
  .lead { margin: 0; }
  .rail-facts { grid-column: 2; grid-row: 2 / span 3; grid-template-columns: 1fr 1fr; align-content: start; }
  .participant-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .participant-grid li:not(:nth-child(6n + 1)) { border-left: 0; padding-left: 0; }
  .participant-grid li:not(:nth-child(4n + 1)) { border-left: 1px solid rgba(111,112,104,.6); padding-left: 12px; }
}

@media (max-width: 620px) {
  :root { --page: calc(100vw - 28px); }
  .topline { min-height: 32px; font-size: .55rem; }
  .title-rail { display: block; padding: 14px 0 22px; }
  .rail-kicker { font-size: .48rem; margin-bottom: 9px; }
  .title-rail h1 { font-size: clamp(3rem, 16vw, 4.8rem); line-height: .88; }
  .ratio-line { margin: 10px 0 16px; font-size: .7rem; }
  .lead { max-width: 20rem; font-size: .76rem; line-height: 1.75; }
  .rail-facts { display: none; }
  .mobile-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 12px; padding: 5px 0 24px; border-bottom: 1px solid var(--rule); }
  .mobile-facts h2 { margin: 0 0 5px; color: var(--muted); font-size: .56rem; font-weight: 500; }
  .mobile-facts p { margin: 0; font-size: .68rem; line-height: 1.65; }
  .main-visual > canvas, .fallback-horizon { aspect-ratio: 16 / 7; }
  .main-visual figcaption { display: block; min-height: 0; padding: 9px 0 15px; line-height: 1.55; }
  .main-visual figcaption span { display: block; }
  .participants { padding-top: 0; }
  .participant-heading { padding: 8px 0; }
  .participant-heading p { font-size: .5rem; }
  .participant-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .participant-grid li { min-height: 0; padding: 11px 8px 12px 0; }
  .participant-grid li:not(:nth-child(4n + 1)) { border-left: 0; padding-left: 0; }
  .participant-grid li:nth-child(even) { border-left: 1px solid rgba(111,112,104,.6); padding-left: 9px; }
  .person-text strong { font-size: .78rem; }
  .person-text small, .person-text em { font-size: .48rem; }
  .person-icon { flex-basis: 1rem; }
  .format-chapter { padding: 18px 0 42px; }
  .format-strip { grid-template-columns: repeat(12, 1fr); gap: 22px 12px; align-items: end; }
  .format-strip figure:nth-child(1) { grid-column: 1 / 7; }.format-strip figure:nth-child(2) { grid-column: 7 / 13; }.format-strip figure:nth-child(3) { grid-column: 1 / 5; }.format-strip figure:nth-child(4) { grid-column: 5 / 9; }.format-strip figure:nth-child(5) { grid-column: 1 / 13; }
  .ratio-gate { display: block; padding: 22px 0 52px; }
  .gate-copy { max-width: 20rem; }
  .gate-frames { grid-template-columns: repeat(12, 1fr); min-height: 0; margin-top: 30px; gap: 24px 12px; }
  .gate-32 { grid-column: 1 / 7; }.gate-43 { grid-column: 7 / 13; }.gate-67 { grid-column: 1 / 5; }.gate-69 { grid-column: 5 / 9; }.gate-wide { grid-column: 1 / 13; }
  .footer { display: block; line-height: 1.7; }
  .footer a { display: inline-block; margin-top: .8rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media (forced-colors: active) { canvas { display: none !important; } .fallback-horizon { position: relative; width: 100%; height: auto; } }