:root {
  --paper: #f3eddf;
  --ink: #171816;
  --muted: rgba(23, 24, 22, .55);
  --page-tone: #f3eddf;
  --ease-out: cubic-bezier(.18, .82, .2, 1);
}

* { box-sizing: border-box; }
html { background: var(--paper); }
html.poster-page {
  min-height: 100%; overflow: hidden; overscroll-behavior: none;
  background: var(--page-tone); transition: background-color 900ms var(--ease-out);
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--page-tone);
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  transition: background-color 900ms var(--ease-out);
}
button, input { font: inherit; }
a { color: inherit; }

body[data-page="posters"] { min-height: 100svh; height: 100dvh; overflow: hidden; }
html[data-active="signal"] { --page-tone: #f2e9d4; }
html[data-active="quest"] { --page-tone: #dbe4ff; }
html[data-active="ritual"] { --page-tone: #dcefdc; }
html[data-active="bluehour"] { --page-tone: #c9d4e3; }
html[data-active="unfinished"] { --page-tone: #eee6dd; }
html[data-active="loop"] { --page-tone: #f4dcd5; }

.poster-shell {
  position: relative; width: 100%; min-height: 100svh; height: 100dvh; isolation: isolate;
  background: var(--page-tone); transition: background-color 900ms var(--ease-out);
}
.opening-scene {
  display: none; position: fixed; inset: 0; z-index: 100; overflow: hidden; pointer-events: none;
  background: var(--paper); contain: layout paint;
}
html.has-gsap .opening-scene { display: block; }
.opening-paper {
  position: absolute; z-index: 1; left: 50%; top: 50%;
  width: clamp(238px, 25.5vw, 390px); height: min(66svh, 690px);
  max-height: calc(clamp(238px, 25.5vw, 390px) * 1.25);
  background-color: #f8d54d;
  background-image: url('/assets/poster-signal-bg-v1.png');
  background-size: 210% 210%; background-position: 100% 0; background-repeat: no-repeat;
  box-shadow: 0 28px 70px rgba(37,31,23,.13); will-change: transform, clip-path, opacity;
}
.opening-character {
  position: absolute; z-index: 3; left: 50%; bottom: max(8svh, 50px);
  width: clamp(160px, 13.6vw, 220px); aspect-ratio: 3 / 4;
  will-change: transform, opacity;
}
.opening-pose {
  position: absolute; inset: 0; display: block;
  background: url('/assets/benben-signal-intro-poses-v3.png?v=1') no-repeat;
  background-size: 400% 200%; background-position: 0 0; contain: paint;
}
.opening-signal {
  position: absolute; z-index: 2; left: 50%; top: max(6svh, 38px);
  width: clamp(210px, 29vw, 410px); aspect-ratio: 1; will-change: transform, opacity;
}
.opening-signal svg { position: absolute; inset: 0; z-index: 1; display: block; width: 100%; height: 100%; overflow: visible; }
.opening-signal .signal-spiral, .signal-art-vector .signal-spiral {
  fill: none; stroke: #f04428; stroke-width: 25; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 660; stroke-dashoffset: 660; will-change: transform;
}
.opening-signal .signal-seed, .opening-signal .signal-particle,
.signal-art-vector .signal-seed, .signal-art-vector .signal-particle { fill: #f04428; opacity: 0; transform-box: fill-box; transform-origin: center; }
.opening-touch {
  position: absolute; z-index: 4; left: 50%; top: 50%; width: 18px; aspect-ratio: 1;
  border: 2px solid rgba(240,68,40,.78); border-radius: 50%; opacity: 0;
  box-shadow: 0 0 0 0 rgba(240,68,40,.22); will-change: transform, opacity;
}
.paper-noise {
  position: fixed; inset: 0; z-index: 30; pointer-events: none; opacity: .13; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
}

.poster-head {
  position: fixed; z-index: 40; left: clamp(20px, 3.4vw, 54px); right: clamp(20px, 3.4vw, 54px); top: max(20px, env(safe-area-inset-top));
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; pointer-events: none;
}
.poster-head a, .poster-head button { pointer-events: auto; }
.poster-wordmark {
  justify-self: start; display: inline-flex; gap: .04em; text-decoration: none; font-weight: 800;
  font-size: clamp(17px, 1.35vw, 23px); letter-spacing: -.07em;
}
.poster-wordmark em { color: #f04428; font-style: normal; }
.head-whisper { font: 600 9px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .18em; text-transform: uppercase; opacity: .48; }
.head-links { justify-self: end; display: flex; align-items: center; gap: 8px; }
.head-link, .private-trigger, .language-toggle {
  position: relative; border: 0; padding: 8px 2px; margin-left: 17px; background: none; color: var(--ink); text-decoration: none;
  font: 700 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; text-transform: uppercase; cursor: pointer;
}
.head-link::after, .private-trigger::after, .language-toggle::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 2px; height: 1px; background: currentColor; transition: right 350ms var(--ease-out); }
.head-link:hover::after, .private-trigger:hover::after, .language-toggle:hover::after { right: 0; }
.language-toggle { min-width: 24px; }

.gallery-window { position: absolute; inset: 10svh 0 9svh; overflow: visible; cursor: grab; touch-action: none; }
.gallery-window.is-dragging { cursor: grabbing; }
.poster-track {
  position: absolute; left: 0; top: 50%; display: flex; align-items: center; gap: clamp(18px, 2.2vw, 38px);
  height: min(72svh, 760px); padding: 0 18vw; will-change: transform;
}
.poster-card {
  --px: 0; --py: 0; --lift: 0px; --card-ink: #131413;
  position: relative; flex: 0 0 auto; width: clamp(238px, 25.5vw, 390px); height: min(66svh, 690px); max-height: calc(clamp(238px, 25.5vw, 390px) * 1.25);
  color: var(--card-ink); isolation: isolate; outline: none; perspective: 1200px; transform: translateY(var(--lift)) scale(.91); opacity: .58;
  transition: transform 650ms var(--ease-out), opacity 500ms ease, filter 500ms ease; filter: saturate(.72);
}
.poster-card:nth-child(2n) { --lift: 14px; }
.poster-card:nth-child(3n) { --lift: -9px; }
.poster-card.is-active, .poster-card:focus-visible { transform: translateY(var(--lift)) scale(1.035); opacity: 1; filter: none; z-index: 4; }
.poster-frame {
  position: absolute; inset: 0; overflow: hidden; background: #ddd; box-shadow: 0 16px 45px rgba(37, 31, 23, .09);
  clip-path: polygon(3% 0, 98% 2%, 96% 98%, 0 100%);
  transform: rotateX(calc(var(--py) * -4deg)) rotateY(calc(var(--px) * 5deg)); transform-style: preserve-3d;
  transition: clip-path 750ms var(--ease-out), box-shadow 650ms ease; will-change: transform;
}
.poster-card:nth-child(2n) .poster-frame { clip-path: polygon(1% 2%, 96% 0, 100% 100%, 4% 97%); }
.poster-card:nth-child(3n) .poster-frame { clip-path: polygon(5% 0, 100% 3%, 95% 100%, 0 96%); }
.poster-card.is-active .poster-frame { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); box-shadow: 0 28px 70px rgba(37, 31, 23, .17); }
.poster-image {
  width: 100%; height: 100%; display: block; object-fit: cover; pointer-events: none; user-select: none;
  transform: scale(1.045) translate(calc(var(--px) * -5px), calc(var(--py) * -5px)); transition: filter 550ms ease; will-change: transform;
}
.signal-poster-bg {
  background-color: #f8d54d; background-image: url('/assets/poster-signal-bg-v1.png');
  background-size: 210% 210%; background-position: 100% 0; background-repeat: no-repeat;
}
.poster-card:not(.is-active) .poster-image { filter: contrast(.94); }
.poster-wash { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, transparent 58%, rgba(0,0,0,.11)); opacity: 0; transition: opacity 400ms; }
.poster-card.is-active .poster-wash { opacity: 1; }

.poster-number, .poster-caption { position: absolute; z-index: 7; pointer-events: none; transition: transform 600ms var(--ease-out), opacity 450ms ease; }
.poster-number {
  left: 18px; top: 17px; padding: 6px 8px; background: rgba(249, 244, 230, .85); color: #171816;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em;
}
.poster-caption { left: 20px; right: 20px; bottom: 19px; color: #fff; text-shadow: 0 1px 12px rgba(0,0,0,.28); transform: translateY(14px); opacity: 0; }
.poster-caption b { display: block; font: 800 clamp(22px, 2.2vw, 34px)/.95 "Helvetica Neue", Arial, sans-serif; letter-spacing: -.065em; text-transform: uppercase; }
.poster-caption span { display: block; margin-top: 7px; font: 600 9px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .11em; text-transform: uppercase; }
.poster-card.is-active .poster-caption { opacity: 1; transform: none; }
.poster-card[data-key="signal"] .poster-caption,
.poster-card[data-key="ritual"] .poster-caption,
.poster-card[data-key="unfinished"] .poster-caption,
.poster-card[data-key="loop"] .poster-caption { color: #191a18; text-shadow: 0 1px 12px rgba(255,255,255,.45); }

.reactive { position: absolute; inset: 0; z-index: 5; pointer-events: none; overflow: hidden; }
.reactive > * { position: absolute; will-change: transform, opacity; }
.motion-art { display: block; object-fit: contain; pointer-events: none; user-select: none; }
.signal-art { left: 39%; top: 11%; width: 53%; height: 40%; opacity: 1; transform-origin: 52% 52%; mix-blend-mode: multiply; }
.signal-art-vector { top: 9.8%; height: auto; aspect-ratio: 1; overflow: visible; }
.signal-character { left: 16.38%; top: 43.35%; width: 39.86%; aspect-ratio: 3 / 4; z-index: 1; }
.signal-character-pose {
  position: absolute; inset: 0; display: block;
  background: url('/assets/benben-signal-intro-poses-v3.png?v=1') no-repeat 100% 100% / 400% 200%;
  contain: paint;
}
.quest-companions { left: -7%; top: 43%; width: 47%; height: 46%; opacity: 1; transform-origin: 50% 60%; }
.loop-person { left: 31%; top: 22%; width: 43%; height: 70%; opacity: 1; transform-origin: 50% 72%; mix-blend-mode: multiply; }
.bluehour-screen { left: 27%; top: 29%; width: 61%; height: 36%; opacity: 1; transform-origin: 50% 62%; }
.unfinished-person { left: 30%; top: 48%; width: 30%; height: 31%; opacity: 1; transform-origin: 50% 76%; mix-blend-mode: multiply; }
.poster-card.is-poked .reactive { animation: touchWake 520ms var(--ease-out); }
@keyframes touchWake { 35% { transform: scale(1.045); filter: brightness(1.12) saturate(1.15); } }

/* Each poster now owns one clear narrative action. */
.ritual-steam { inset: 0; width: 100%; height: 100%; position: absolute; overflow: visible; }
.ritual-steam path { fill: none; stroke: #fff8d9; stroke-width: 5; stroke-linecap: round; stroke-dasharray: 300; stroke-dashoffset: 300; opacity: .85; }
.is-active .ritual-steam path { animation: drawSteam 3.3s ease-in-out infinite; }
@keyframes drawSteam { 0% { stroke-dashoffset: 300; opacity: 0; } 30%,72% { stroke-dashoffset: 0; opacity: .8; } 100% { stroke-dashoffset: -300; opacity: 0; } }

/* GSAP owns motion; the CSS rules above remain as a graceful fallback. */
html.has-gsap .poster-card {
  transition: filter 500ms ease;
  transform-style: preserve-3d;
}
html.has-gsap .poster-card.is-poked .reactive,
html.has-gsap .is-active .motion-art,
html.has-gsap .is-active .ritual-steam path {
  animation: none;
}

.gallery-footer {
  position: fixed; z-index: 35; left: clamp(20px, 3.4vw, 54px); right: clamp(20px, 3.4vw, 54px); bottom: max(18px, env(safe-area-inset-bottom));
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: end; pointer-events: none;
}
.active-story { min-width: 0; }
.active-story b { display: block; font: 800 clamp(12px, 1vw, 15px)/1.1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.active-story span { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; }
.drag-hint { font: 700 9px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .15em; text-transform: uppercase; opacity: .5; }
.poster-counter { justify-self: end; font: 800 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; }
.poster-counter i { font-style: normal; opacity: .35; }

.private-dialog {
  width: min(430px, calc(100vw - 28px)); border: 0; padding: 0; color: var(--ink); background: transparent;
}
.private-dialog::backdrop { background: rgba(16,17,15,.32); backdrop-filter: blur(9px); }
.private-card { position: relative; padding: 34px; background: #f8f1df; border: 1px solid rgba(22,23,21,.22); box-shadow: 18px 20px 0 rgba(22,23,21,.13); transform: rotate(-.6deg); }
.dialog-close { position: absolute; top: 14px; right: 14px; width: 34px; height: 34px; border: 0; background: none; font-size: 25px; cursor: pointer; }
.private-kicker { font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .14em; text-transform: uppercase; opacity: .52; }
.private-card h2 { margin: 18px 0 8px; font: 800 clamp(38px, 8vw, 60px)/.86 "Helvetica Neue", Arial, sans-serif; letter-spacing: -.075em; }
.private-card p { margin: 0 0 24px; max-width: 30em; color: var(--muted); font-size: 12px; line-height: 1.6; }
.pass-line { display: flex; border-bottom: 2px solid var(--ink); }
.pass-line input { flex: 1; min-width: 0; border: 0; outline: 0; padding: 14px 3px; background: transparent; color: var(--ink); }
.pass-line button { width: 46px; border: 0; background: var(--ink); color: #fff; cursor: pointer; transition: transform 220ms var(--ease-out); }
.pass-line button:hover { transform: translate(-3px,-3px); }
.login-error { min-height: 17px; margin-top: 10px; color: #d53423; font-size: 11px; }

/* About playground */
body[data-page="about"] { min-height: 100svh; overflow-x: hidden; background: #f3eddf; }
.about-shell { position: relative; min-height: 100svh; overflow: hidden; padding: 112px clamp(22px, 5vw, 76px) 80px; isolation: isolate; }
.about-head { position: fixed; z-index: 30; top: max(20px, env(safe-area-inset-top)); left: clamp(22px,5vw,76px); right: clamp(22px,5vw,76px); display: flex; align-items: center; justify-content: space-between; }
.about-nav { display: flex; align-items: center; gap: 25px; }
.about-nav a, .about-nav button { padding: 5px 0; border: 0; background: none; color: inherit; font: 700 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: .12em; text-transform: uppercase; text-decoration: none; cursor: pointer; }
.about-hero { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(270px,.8fr); align-items: center; gap: clamp(35px,8vw,130px); min-height: calc(100svh - 192px); }
.about-kicker { font: 700 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: .16em; text-transform: uppercase; opacity: .48; }
.about-title { margin: 18px 0 30px; font: 800 clamp(57px,9.3vw,145px)/.75 "Helvetica Neue",Arial,sans-serif; letter-spacing: -.09em; }
.about-title em { display: block; color: #f04428; font-style: normal; }
.about-title .title-zh { display: none; }
html[data-language="zh"] .about-title { font-size: clamp(51px, 7.6vw, 118px); line-height: .84; letter-spacing: -.085em; }
html[data-language="zh"] .about-title .title-en { display: none; }
html[data-language="zh"] .about-title .title-zh { display: inline-flex; }
.wobble-word { display: inline-flex; white-space: nowrap; }
.wobble-word > span { display: inline-block; transition: transform 450ms var(--ease-out); }
.about-copy { max-width: 600px; font-size: clamp(14px,1.2vw,18px); line-height: 1.75; }
.about-copy strong { font-weight: 700; }
.about-copy p:last-child { margin-bottom: 0; color: rgba(23,24,22,.72); }
.about-contact { display: inline-grid; grid-template-columns: auto auto; grid-template-areas: "label arrow" "address arrow"; align-items: center; gap: 5px 28px; margin-top: clamp(24px,3.5vh,38px); padding: 13px 16px 14px; background: #1c58ce; color: #fff; box-shadow: 7px 8px 0 #f6ca17; text-decoration: none; transform: rotate(-1deg); transition: transform 260ms var(--ease-out), box-shadow 260ms var(--ease-out); }
.about-contact:hover, .about-contact:focus-visible { box-shadow: 11px 12px 0 #f6ca17; transform: translate(-3px,-3px) rotate(1deg); }
.about-contact:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; }
.about-contact-label { grid-area: label; font: 800 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: .16em; opacity: .72; }
.about-contact-address { grid-area: address; font: 750 clamp(13px,1.15vw,17px)/1.15 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: -.035em; }
.about-contact-arrow { grid-area: arrow; font: 400 28px/1 "Helvetica Neue",Arial,sans-serif; transition: transform 260ms var(--ease-out); }
.about-contact:hover .about-contact-arrow, .about-contact:focus-visible .about-contact-arrow { transform: translate(3px,-3px); }
.about-visual { position: relative; justify-self: center; width: min(31vw,420px); aspect-ratio: 4/5; padding: 0; border: 0; background: transparent; color: var(--ink); cursor: pointer; transform: rotate(3deg); }
.about-visual::before { content: ""; position: absolute; inset: 13px -16px -16px 13px; background: #1c58ce; }
.about-picture { position: relative; z-index: 2; width: 100%; height: 100%; display: block; overflow: hidden; background: #f2cfc6; clip-path: polygon(0 0,100% 0,100% 100%,0 100%); transition: clip-path 650ms var(--ease-out), transform 700ms var(--ease-out); }
.about-state { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(.9); transition: transform 900ms var(--ease-out), filter 650ms ease; }
.about-state-awake { z-index: 2; clip-path: inset(0 100% 0 0); transform: scale(1.07) translateX(-3%); transition: clip-path 800ms cubic-bezier(.65,0,.2,1), transform 900ms var(--ease-out); }
.about-visual::after { content: ""; position: absolute; z-index: 5; left: 0; top: 0; bottom: 0; width: 3px; background: rgba(255,255,255,.78); opacity: 0; transform: translateX(0); pointer-events: none; }
.about-visual:hover .about-state-awake, .about-visual:focus-visible .about-state-awake, .about-visual.is-awake .about-state-awake { clip-path: inset(0 0 0 0); transform: scale(1); }
.about-visual:hover .about-state-default, .about-visual:focus-visible .about-state-default, .about-visual.is-awake .about-state-default { transform: scale(.97) translateX(3%); filter: saturate(.7); }
.about-visual:hover .about-picture, .about-visual:focus-visible .about-picture, .about-visual.is-awake .about-picture { clip-path: polygon(2% 0,100% 2%,97% 100%,0 97%); transform: rotate(-1.5deg) scale(1.015); }
.about-visual:hover::after, .about-visual:focus-visible::after, .about-visual.is-awake::after { animation: paperReveal 820ms cubic-bezier(.65,0,.2,1) both; }
@keyframes paperReveal { 0% { left: 0; opacity: 0; } 10%,80% { opacity: .85; } 100% { left: 100%; opacity: 0; } }
.about-visual-note { position: absolute; z-index: 4; left: -28px; bottom: 40px; padding: 9px 12px; background: #b5d227; transform: rotate(-8deg); font: 800 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: .1em; }
.about-visual-note span { display: block; }
.about-visual-note .note-awake { display: none; }
.about-visual:hover .note-sleep, .about-visual:focus-visible .note-sleep, .about-visual.is-awake .note-sleep { display: none; }
.about-visual:hover .note-awake, .about-visual:focus-visible .note-awake, .about-visual.is-awake .note-awake { display: block; }
.orbit { position: absolute; z-index: 3; width: 116%; aspect-ratio: 1; left: -8%; top: -9%; border: 1px solid rgba(23,24,22,.36); border-radius: 50%; pointer-events: none; animation: orbitTurn 15s linear infinite; }
.orbit::after { content: "STILL IN BETA"; position: absolute; right: -28px; top: 45%; padding: 7px 10px; background: #f6ca17; font: 800 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: .1em; }
@keyframes orbitTurn { to { transform: rotate(360deg); } }

.play-card { position: absolute; z-index: 9; display: grid; place-items: center; padding: 14px 17px; border: 1px solid rgba(23,24,22,.32); box-shadow: 7px 8px 0 rgba(23,24,22,.12); cursor: grab; touch-action: none; user-select: none; font: 800 clamp(10px,1vw,14px)/1.15 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: .09em; text-transform: uppercase; will-change: transform; }
.play-card:active { cursor: grabbing; }
.play-card.c1 { left: 47%; top: 14%; background: #ff6c55; transform: rotate(-7deg); }
.play-card.c2 { left: 5%; top: 68%; background: #bca8ef; transform: rotate(6deg); }
.play-card.c3 { right: 4%; top: 67%; background: #d6efca; transform: rotate(-4deg); }
.about-squiggle { position: absolute; z-index: -1; right: -5vw; top: 5vh; width: 42vw; height: 78vh; border: clamp(30px,5vw,72px) solid rgba(255,194,23,.62); border-left-color: transparent; border-radius: 50%; transform: rotate(-18deg); }
.about-dot { position: absolute; z-index: -1; width: 18vw; aspect-ratio: 1; border-radius: 50%; background: #d7eacb; left: 32%; bottom: -10%; }
.about-marquee { position: absolute; z-index: 1; left: -3vw; right: -3vw; bottom: 20px; overflow: hidden; border-top: 1px solid rgba(23,24,22,.25); border-bottom: 1px solid rgba(23,24,22,.25); transform: rotate(-1.2deg); background: #f3eddf; }
.about-marquee div { width: max-content; padding: 9px 0; font: 800 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing: .16em; animation: marquee 20s linear infinite; }
@keyframes marquee { to { transform: translateX(-50%); } }

@media (max-width: 760px) {
  .opening-paper { width: 78vw; height: min(64svh, calc(78vw * 1.25)); }
  .opening-character { width: clamp(160px, 45vw, 215px); bottom: max(10svh, 62px); }
  .opening-signal { width: clamp(190px, 56vw, 270px); top: max(11svh, 70px); }
  .poster-head { top: max(14px, env(safe-area-inset-top)); left: 16px; right: 16px; grid-template-columns: 1fr auto; }
  .head-whisper { display: none; }
  .head-links { gap: 3px; }
  .head-link, .private-trigger { margin-left: 12px; font-size: 9px; }
  .language-toggle { margin-left: 8px; font-size: 9px; }
  .gallery-window { inset: 9svh 0 10svh; }
  .poster-track { height: 73svh; gap: 16px; padding: 0 11vw; }
  .poster-card { width: 76vw; height: min(66svh, calc(76vw * 1.25)); max-height: none; transform: translateY(var(--lift)) scale(.94); }
  .poster-card.is-active { transform: translateY(var(--lift)) scale(1); }
  .poster-caption { opacity: 1; transform: none; }
  .poster-caption b { font-size: 24px; }
  .gallery-footer { left: 16px; right: 16px; bottom: max(13px, env(safe-area-inset-bottom)); grid-template-columns: 1fr auto; }
  .drag-hint { display: none; }
  .poster-counter { font-size: 10px; }
  .active-story span { max-width: 68vw; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .private-card { padding: 30px 24px; }
  .about-shell { padding: 92px 19px 115px; overflow: visible; }
  .about-head { position: absolute; left: 19px; right: 19px; }
  .about-hero { display: flex; flex-direction: column; align-items: stretch; gap: 70px; min-height: auto; }
  .about-title { font-size: clamp(57px,23vw,92px); margin-bottom: 25px; }
  html[data-language="zh"] .about-title { font-size: clamp(50px, 16.5vw, 72px); line-height: .9; }
  .about-copy { font-size: 14px; }
  .about-contact { margin-top: 28px; }
  .about-visual { width: 72vw; align-self: center; }
  .play-card.c1 { top: 34%; left: auto; right: 3%; }
  .play-card.c2 { top: 59%; left: 2%; }
  .play-card.c3 { top: 82%; right: 1%; }
  .about-squiggle { top: 48%; right: -30%; width: 100vw; height: 65vh; }
  .about-dot { left: -16%; bottom: 3%; width: 50vw; }
  .about-marquee { position: absolute; bottom: 18px; }
}

@media (max-width: 430px) {
  .opening-paper { width: 72vw; height: min(63svh, calc(72vw * 1.25)); }
  .poster-track { height: 69svh; padding-inline: 10vw; }
  .poster-card { width: 72vw; height: min(63svh, calc(72vw * 1.25)); }
  .poster-number { left: 13px; top: 13px; font-size: 8px; }
  .poster-caption { left: 15px; right: 15px; bottom: 15px; }
  .poster-caption b { font-size: 21px; }
  .poster-caption span { margin-top: 5px; font-size: 8px; }
  .active-story b { font-size: 10px; }
  .active-story span { font-size: 9px; }
  .about-title { font-size: clamp(55px, 21vw, 84px); }
  .about-copy { padding-right: 12px; }
  .about-contact { width: min(100%, 310px); box-sizing: border-box; gap: 5px 16px; }
  .about-visual { width: min(74vw, 330px); }
  .about-visual-note { left: -13px; bottom: 26px; font-size: 8px; }
  .play-card { padding: 10px 11px; font-size: 9px; }
  .play-card.c1 { top: 35%; right: 0; }
  .play-card.c2 { top: 56%; left: 0; }
  .play-card.c3 { top: 83%; right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
  .poster-frame, .poster-image { transform: none !important; }
  .opening-scene { display: none !important; }
}