:root {
  --color_void: #030509;
  --color_night: #07101d;
  --color_ink: #0a1321;
  --color_white: #f6f2e9;
  --color_mist: #b8c9d9;
  --color_coral: #ff4f73;
  --color_cyan: #63eee3;
  --color_blue: #78a8ff;
  --color_amber: #ffbd63;
  --color_lime: #c8ff78;
  --ease_glide: cubic-bezier(0.2, 0.78, 0.2, 1);
  --actor_width: 72px;
  --actor_height: 96px;
  --actor_x: calc(50vw - 36px);
  --actor_jump_y: 0px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color_void);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 20rem;
  overflow-x: hidden;
  background: var(--color_void);
  color: var(--color_white);
  font-family: "Yu Gothic UI", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

header,
nav,
main,
section,
article,
aside,
footer,
figure,
figcaption,
search,
hgroup {
  margin: 0;
  padding: 0;
  border: 0;
}

a {
  color: inherit;
}

button {
  font: inherit;
}

.visually_hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip_link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  background: var(--color_white);
  color: var(--color_void);
  font-weight: 800;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

.skip_link:focus {
  transform: translateY(0);
}

.site_header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  isolation: isolate;
  height: clamp(4.6rem, 8vw, 7rem);
  border-bottom: 1px solid transparent;
  background: transparent;
  transition: border-color 320ms ease, background 320ms ease, box-shadow 320ms ease;
  pointer-events: none;
}

.site_header::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: -1;
  height: max(7.5rem, 100%);
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0.85) 0%,
    rgba(10, 10, 10, 0.5) 40%,
    rgba(10, 10, 10, 0) 100%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 320ms ease;
  /* 社内のアプリと同じく、右端のスクロールバーをグラデーションで覆わない。 */
  -webkit-mask-image: linear-gradient(to left, transparent 0, transparent 12px, black 14px, black 100%);
  mask-image: linear-gradient(to left, transparent 0, transparent 12px, black 14px, black 100%);
}

.site_header_docked {
  border-bottom-color: transparent;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.site_header_docked::before {
  opacity: 1;
}

.site_header_docked .brand_visual,
.site_header_docked .header_site_nav_inner,
.site_header_docked .sound_control,
.site_header_docked .mode_control {
  filter: drop-shadow(0 0.25rem 0.6rem rgba(0, 0, 0, 0.42));
}

.brand_link {
  position: absolute;
  top: clamp(1.35rem, 2.8vw, 2.5rem);
  left: clamp(1.25rem, 4vw, 4.5rem);
  display: inline-flex;
  align-items: center;
  color: var(--color_white);
  text-decoration: none;
  pointer-events: auto;
}

.brand_link:focus-visible,
.sound_control:focus-visible,
.stage_volume:focus-visible,
.mode_control:focus-visible,
.header_site_nav a:focus-visible,
.opening_skip:focus-visible,
.site_slide_advance_link:focus-visible,
.portal_control:focus-visible,
.story_advance_control:focus-visible,
.replay_control:focus-visible,
.game_rift:focus-visible,
.jump_control:focus-visible,
.mode_item:focus-visible {
  outline: 2px solid var(--color_cyan);
  outline-offset: 0.4rem;
}

.brand_visual {
  display: flex;
  align-items: baseline;
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(1.05rem, 1.45vw, 1.45rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.075em;
}

.brand_p_001,
.brand_p_002 {
  display: inline-block;
}

.brand_p_002 {
  margin-left: -0.08em;
  color: var(--color_coral);
  text-shadow: 0.1em 0 var(--color_cyan);
  transform: translateY(0.08em) rotate(2deg);
}

.experience_actions {
  position: absolute;
  top: clamp(0.75rem, 1.8vw, 1.6rem);
  right: clamp(1rem, 3.4vw, 3.6rem);
  display: flex;
  align-items: center;
  gap: clamp(0.65rem, 1.4vw, 1.35rem);
  pointer-events: auto;
}

.sound_control_wrap {
  position: relative;
}

.sound_control,
.mode_control,
.replay_control,
.game_rift,
.mode_item {
  border: 0;
  color: inherit;
  cursor: pointer;
}

.sound_control {
  position: relative;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border-radius: 50%;
  background: rgba(3, 5, 9, 0.36);
}

.sound_orbit,
.sound_star,
.sound_arc {
  position: absolute;
  display: block;
}

.sound_orbit {
  inset: 0;
}

.sound_star {
  top: 50%;
  left: 50%;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--color_white);
  box-shadow: 0 0 1.2rem rgba(99, 238, 227, 0.8);
  transform: translate(-50%, -50%) rotate(45deg);
  transition: background 240ms ease, box-shadow 240ms ease;
}

.sound_arc {
  top: 50%;
  left: 50%;
  border: 1px solid rgba(246, 242, 233, 0.42);
  border-left-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
}

.sound_arc_001 {
  width: 1rem;
  height: 1rem;
}

.sound_arc_002 {
  width: 1.7rem;
  height: 1.7rem;
  opacity: 0.65;
}

.sound_arc_003 {
  width: 2.4rem;
  height: 2.4rem;
  opacity: 0.26;
}

.sound_control:hover .sound_arc,
.sound_control:focus-visible .sound_arc,
.sound_control[aria-pressed="true"] .sound_arc {
  border-top-color: var(--color_cyan);
  border-right-color: var(--color_cyan);
}

.sound_control[aria-pressed="true"] .sound_star {
  background: var(--color_cyan);
  box-shadow: 0 0 1.6rem rgba(99, 238, 227, 1), 0 0 3.2rem rgba(120, 168, 255, 0.36);
}

.sound_control[aria-pressed="true"] .sound_orbit {
  animation: sound_breathe 3.6s ease-in-out infinite;
}

@keyframes sound_breathe {
  0%, 100% { transform: scale(0.94); opacity: 0.68; }
  50% { transform: scale(1.08); opacity: 1; }
}

.sound_hint {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  width: max-content;
  max-width: 13rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(99, 238, 227, 0.2);
  background: rgba(4, 8, 14, 0.92);
  color: var(--color_white);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  opacity: 0;
  transform: translateY(-0.35rem);
  transition: opacity 180ms ease, transform 180ms ease;
  pointer-events: none;
}

.sound_control_wrap:hover .sound_hint,
.sound_control_wrap:focus-within .sound_hint {
  opacity: 1;
  transform: translateY(0);
}

.sound_control_wrap.volume_open .sound_hint {
  opacity: 0;
  transform: translateY(-0.35rem);
}

.stage_sound_control {
  position: absolute;
  top: 50%;
  left: calc(50% + min(16.25rem, 38vw));
  z-index: 32;
  width: 3rem;
  height: 3rem;
  transform: translate(-50%, -50%);
  transition: top 980ms var(--ease_glide), left 980ms var(--ease_glide), opacity 320ms ease;
  pointer-events: auto;
}

.sound_control_stage {
  border: 1px solid rgba(246, 242, 233, 0.13);
  background: rgba(4, 8, 14, 0.58);
  box-shadow: 0 0.8rem 2.8rem rgba(0, 0, 0, 0.36), inset 0 0 1.2rem rgba(99, 238, 227, 0.025);
  backdrop-filter: blur(8px);
}

.stage_sound_label {
  position: absolute;
  top: 50%;
  right: auto;
  left: calc(100% + 1rem);
  color: rgba(246, 242, 233, 0.92);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.035em;
  text-shadow: 0 0 1.2rem rgba(99, 238, 227, 0.14), 0 0.5rem 1.4rem rgba(0, 0, 0, 0.46);
  white-space: nowrap;
  opacity: 0;
  transform: translate(-0.55rem, -50%);
  transition: opacity 260ms ease, transform 460ms var(--ease_glide);
  pointer-events: none;
}

.stage_sound_control:hover .stage_sound_label,
.stage_sound_control:focus-within .stage_sound_label {
  opacity: 1;
  transform: translate(0, -50%);
}

.stage_volume_panel,
.header_volume_panel {
  position: absolute;
  top: calc(100% + 0.85rem);
  bottom: auto;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.7rem minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  width: 12rem;
  padding: 0.72rem 0.85rem;
  border: 1px solid rgba(99, 238, 227, 0.2);
  background: rgba(3, 7, 13, 0.88);
  color: rgba(246, 242, 233, 0.76);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.42);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  backdrop-filter: blur(14px);
  animation: volume_panel_in 240ms var(--ease_glide) both;
}

.stage_volume_panel {
  right: auto;
  left: -0.1rem;
  transform-origin: left top;
}

.header_volume_panel {
  right: -0.1rem;
  left: auto;
  transform-origin: right top;
}

.stage_volume_panel label,
.header_volume_panel label {
  white-space: nowrap;
}

.stage_volume_panel[hidden],
.header_volume_panel[hidden] {
  display: none;
}

.stage_volume,
.header_volume {
  width: 100%;
  height: 1rem;
  margin: 0;
  accent-color: var(--color_cyan);
  cursor: pointer;
}

@keyframes volume_panel_in {
  from { opacity: 0; transform: translateY(0.35rem) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.mode_control {
  position: relative;
  width: 2.65rem;
  height: 2.65rem;
  padding: 0;
  background: transparent;
}

.mode_signal {
  position: absolute;
  inset: 0.84rem;
  display: block;
  transition: transform 360ms var(--ease_glide);
}

.mode_pixel {
  position: absolute;
  display: block;
  width: 0.34rem;
  height: 0.34rem;
  background: var(--color_white);
  box-shadow: 0 0 0.8rem rgba(246, 242, 233, 0.18);
}

.mode_pixel_001 { top: 0; left: 0; }
.mode_pixel_002 { top: 0; right: 0; background: var(--color_coral); }
.mode_pixel_003 { right: 0; bottom: 0; }
.mode_pixel_004 { bottom: 0; left: 0; background: var(--color_cyan); }

.mode_control:hover .mode_signal,
.mode_control:focus-visible .mode_signal,
.mode_control[aria-expanded="true"] .mode_signal {
  transform: rotate(45deg) scale(1.14);
}

.opening_skip {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  min-height: 2.65rem;
  color: rgba(246, 242, 233, 0.72);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
  transition: color 180ms ease, transform 180ms ease;
}

.opening_skip:hover {
  color: var(--color_white);
  transform: translateX(0.18rem);
}

.opening_skip[hidden],
.header_site_nav[hidden] {
  display: none;
}

.header_site_nav {
  pointer-events: auto;
  animation: header_site_nav_enter 360ms var(--ease_glide) both;
}

.header_site_nav_inner {
  display: flex;
  align-items: center;
  gap: clamp(0.85rem, 1.5vw, 1.5rem);
}

.header_site_nav a {
  color: rgba(246, 242, 233, 0.68);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color 180ms ease;
}

.header_site_nav a:hover,
.header_site_nav a:focus-visible {
  color: var(--color_white);
}

@keyframes header_site_nav_enter {
  from { opacity: 0; transform: translateY(0.35rem); }
  to { opacity: 1; transform: translateY(0); }
}

.mode_menu {
  position: absolute;
  top: calc(100% + 0.7rem);
  right: 0;
  width: min(16rem, calc(100vw - 2rem));
  padding: 0.6rem;
  border: 1px solid rgba(246, 242, 233, 0.13);
  background: rgba(4, 8, 14, 0.96);
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.46);
  backdrop-filter: blur(18px);
}

.mode_menu[hidden] {
  display: none;
}

.mode_item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 2.9rem;
  padding: 0.4rem 0.65rem;
  background: transparent;
  color: rgba(246, 242, 233, 0.84);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-align: left;
}

.mode_item:hover:not(:disabled),
.mode_item:focus-visible {
  background: rgba(99, 238, 227, 0.08);
  color: var(--color_white);
}

.mode_item:disabled {
  opacity: 0.24;
  cursor: default;
}

.score_value {
  color: var(--color_cyan);
  font-variant-numeric: tabular-nums;
}

.experience_stage {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(ellipse 38rem 46rem at 2% 36%, rgba(126, 202, 224, 0.13), transparent 68%),
    radial-gradient(ellipse 34rem 24rem at 72% 24%, rgba(69, 93, 160, 0.09), transparent 70%),
    linear-gradient(180deg, #030509 0%, #07101d 62%, #050914 100%);
  cursor: default;
  outline: none;
}

.space_canvas,
.space_veil,
.space_grain,
.space_floor {
  position: absolute;
  inset: 0;
}

.space_canvas {
  width: 100%;
  height: 100%;
}

.space_veil {
  z-index: 2;
  background:
    radial-gradient(circle at 50% 42%, rgba(99, 238, 227, 0.035), transparent 30%),
    linear-gradient(90deg, rgba(120, 168, 255, 0.055), transparent 22%, transparent 74%, rgba(255, 79, 115, 0.028));
  pointer-events: none;
}

.space_grain {
  z-index: 20;
  opacity: 0.055;
  background-image:
    repeating-linear-gradient(0deg, transparent 0, transparent 3px, rgba(255, 255, 255, 0.14) 4px),
    repeating-linear-gradient(90deg, transparent 0, transparent 7px, rgba(255, 255, 255, 0.05) 8px);
  mix-blend-mode: soft-light;
  pointer-events: none;
}

.space_floor {
  z-index: 4;
  top: auto;
  bottom: 16%;
  height: 1px;
  background: linear-gradient(90deg, transparent 3%, rgba(120, 168, 255, 0.08), rgba(99, 238, 227, 0.35) 50%, rgba(255, 79, 115, 0.09), transparent 97%);
  box-shadow: 0 -1rem 6rem rgba(99, 238, 227, 0.04);
  pointer-events: none;
}

.portal_wrap {
  position: absolute;
  inset: 0;
  z-index: 12;
  pointer-events: none;
}

.entry_selection {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translate(-50%, -50%);
  transition: opacity 520ms ease, filter 520ms ease, transform 760ms var(--ease_glide);
  pointer-events: none;
}

.portal_control {
  display: flex;
  align-items: center;
  width: min(28rem, calc(100vw - 4rem));
  min-height: 3.8rem;
  padding: 0.7rem 1.25rem;
  border: 1px solid rgba(246, 242, 233, 0.12);
  border-radius: 1.9rem;
  background:
    linear-gradient(90deg, rgba(99, 238, 227, 0.08), transparent 58%),
    rgba(8, 18, 24, 0.82);
  color: rgba(246, 242, 233, 0.88);
  text-align: left;
  box-shadow: 0 1.4rem 5rem rgba(0, 0, 0, 0.42), inset 0 1px rgba(255, 255, 255, 0.035);
  transition: border-color 220ms ease, background 220ms ease, box-shadow 320ms ease, filter 220ms ease, transform 320ms var(--ease_glide);
  pointer-events: auto;
  cursor: pointer;
}

.portal_control:hover,
.portal_control:focus-visible {
  border-color: rgba(99, 238, 227, 0.42);
  background:
    linear-gradient(90deg, rgba(99, 238, 227, 0.14), transparent 62%),
    rgba(8, 15, 24, 0.9);
  box-shadow: 0 1.8rem 5rem rgba(0, 0, 0, 0.42), inset 0 1px rgba(255, 255, 255, 0.045);
  filter: brightness(1.08);
  transform: translateY(-0.16rem);
}

.portal_cross {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: 1.1rem;
  height: 1.1rem;
  margin-right: 0.9rem;
  transform: scale(1);
  transition: transform 320ms var(--ease_glide);
}

.portal_cross::before,
.portal_cross::after {
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  content: "";
  background: var(--color_mist);
  transform: translate(-50%, -50%);
}

.portal_cross::before { width: 1px; height: 100%; }
.portal_cross::after { width: 100%; height: 1px; }

.portal_control:hover .portal_cross,
.portal_control:focus-visible .portal_cross {
  transform: scale(1.18);
}

.portal_name {
  display: inline-flex;
  align-items: center;
  font-size: clamp(0.92rem, 1.5vw, 1.08rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: 0.025em;
}

.portal_name::after {
  display: inline-block;
  width: 0.2rem;
  height: 1.28em;
  margin-left: 0.34rem;
  background: var(--color_white);
  box-shadow: 0 0 0.8rem rgba(99, 238, 227, 0.88);
  content: "";
  animation: portal_cursor_blink 920ms steps(1, end) infinite;
}

@keyframes portal_cursor_blink {
  0%, 42% { opacity: 1; }
  43%, 100% { opacity: 0; }
}

.thoughtcraft {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(82vw, 70rem);
  aspect-ratio: 16 / 9;
  opacity: 0;
  filter: drop-shadow(0 2rem 5rem rgba(0, 0, 0, 0.72));
  transform: translate(-50%, -50%) scale(0.72);
  transition: opacity 780ms ease, transform 1200ms var(--ease_glide), filter 900ms ease;
  pointer-events: none;
}

.thoughtcraft_state {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transform: scale(0.985);
  transition: opacity 980ms ease, transform 1400ms var(--ease_glide), filter 980ms ease;
}

.thoughtcraft_state_001 { opacity: 1; }

.thoughtcraft_scan,
.thoughtcraft_signal {
  position: absolute;
  inset: 8% 4%;
  display: block;
  opacity: 0;
  pointer-events: none;
}

.thoughtcraft_scan {
  background: linear-gradient(180deg, transparent 0 46%, rgba(99, 238, 227, 0.1) 49%, rgba(255, 79, 115, 0.08) 51%, transparent 55%);
  mix-blend-mode: screen;
}

.thoughtcraft_signal {
  background: radial-gradient(circle at 52% 50%, rgba(99, 238, 227, 0.13), transparent 30%);
  filter: blur(0.4rem);
}

.thoughtcraft_crt {
  position: absolute;
  top: 23.8%;
  left: 74.2%;
  z-index: 4;
  display: block;
  width: 7.2%;
  aspect-ratio: 1.43;
  overflow: hidden;
  border-radius: 19% 17% 20% 16%;
  opacity: 0;
  background: #070a09;
  clip-path: polygon(4% 3%, 97% 7%, 94% 96%, 2% 92%);
  filter: blur(0.15px) contrast(1.18);
  transform: rotate(-1.4deg) skewY(1deg);
  transition: top 900ms var(--ease_glide), left 900ms var(--ease_glide), width 900ms var(--ease_glide), opacity 500ms ease, transform 900ms var(--ease_glide);
}

.crt_static,
.crt_scanline,
.crt_game_signal {
  position: absolute;
  inset: 0;
  display: block;
}

.crt_static {
  opacity: 0.78;
  background:
    repeating-radial-gradient(circle at 31% 47%, rgba(238, 255, 250, 0.84) 0 0.6px, rgba(26, 42, 38, 0.45) 0.9px 1.8px),
    repeating-linear-gradient(97deg, rgba(255,255,255,0.34) 0 1px, transparent 1px 3px);
  background-size: 5px 4px, 7px 100%;
  animation: crt_snow 150ms steps(2, end) infinite;
}

.crt_scanline {
  z-index: 5;
  opacity: 0.42;
  background: repeating-linear-gradient(180deg, transparent 0 2px, rgba(0, 0, 0, 0.66) 3px 4px);
  animation: crt_roll 2.1s linear infinite;
}

.crt_game_signal {
  z-index: 3;
  opacity: 0;
  filter: drop-shadow(0 0 2px #d9fff6);
}

.crt_enemy,
.crt_player,
.crt_shot {
  position: absolute;
  display: block;
  background: #d8fff6;
}

.crt_enemy {
  top: 26%;
  width: 11%;
  height: 16%;
  clip-path: polygon(25% 0, 75% 0, 75% 18%, 100% 18%, 100% 72%, 78% 72%, 78% 100%, 58% 100%, 58% 78%, 42% 78%, 42% 100%, 22% 100%, 22% 72%, 0 72%, 0 18%, 25% 18%);
  animation: crt_enemy_step 720ms steps(2, end) infinite alternate;
}

.crt_enemy_001 { left: 20%; }
.crt_enemy_002 { left: 44%; animation-delay: -240ms; }
.crt_enemy_003 { left: 68%; animation-delay: -480ms; }

.crt_player {
  bottom: 13%;
  left: 44%;
  width: 14%;
  height: 10%;
  clip-path: polygon(42% 0, 58% 0, 58% 35%, 100% 35%, 100% 100%, 0 100%, 0 35%, 42% 35%);
}

.crt_shot {
  bottom: 27%;
  left: 50%;
  width: 2%;
  height: 12%;
  animation: crt_shot 820ms linear infinite;
}

.typewriter_keys {
  position: absolute;
  top: 73.3%;
  left: 44.4%;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-template-rows: repeat(3, 1fr);
  column-gap: 3%;
  row-gap: 4%;
  width: 20%;
  height: 8%;
  opacity: 0;
  transform: perspective(240px) rotateX(52deg) rotateZ(1deg);
  transform-origin: 50% 18%;
  transition: top 900ms var(--ease_glide), left 900ms var(--ease_glide), width 900ms var(--ease_glide), opacity 500ms ease, transform 900ms var(--ease_glide);
}

.typewriter_keys i {
  display: block;
  align-self: center;
  aspect-ratio: 1.55;
  border: 1px solid rgba(241, 223, 196, 0.28);
  border-radius: 48%;
  background: rgba(237, 224, 201, 0.52);
  box-shadow: 0 0 0.35rem rgba(255, 79, 115, 0.08);
  animation: typewriter_key 1.44s steps(1, end) infinite;
}

.typewriter_keys i:nth-child(2) { animation-delay: -1.36s; }
.typewriter_keys i:nth-child(3) { animation-delay: -1.28s; }
.typewriter_keys i:nth-child(4) { animation-delay: -1.20s; }
.typewriter_keys i:nth-child(5) { animation-delay: -1.12s; }
.typewriter_keys i:nth-child(6) { animation-delay: -1.04s; }
.typewriter_keys i:nth-child(7) { animation-delay: -0.96s; }
.typewriter_keys i:nth-child(8) { animation-delay: -0.88s; }
.typewriter_keys i:nth-child(9) { animation-delay: -0.80s; }
.typewriter_keys i:nth-child(10) { animation-delay: -0.72s; }
.typewriter_keys i:nth-child(11) { animation-delay: -0.64s; }
.typewriter_keys i:nth-child(12) { animation-delay: -0.56s; }
.typewriter_keys i:nth-child(13) { animation-delay: -0.48s; }
.typewriter_keys i:nth-child(14) { animation-delay: -0.40s; }
.typewriter_keys i:nth-child(15) { animation-delay: -0.32s; }
.typewriter_keys i:nth-child(16) { animation-delay: -0.24s; }
.typewriter_keys i:nth-child(17) { animation-delay: -0.16s; }
.typewriter_keys i:nth-child(18) { animation-delay: -0.08s; }
.typewriter_keys i:nth-child(19) { animation-delay: -1.40s; }
.typewriter_keys i:nth-child(20) { animation-delay: -1.32s; }
.typewriter_keys i:nth-child(21) { animation-delay: -1.24s; }
.typewriter_keys i:nth-child(22) { animation-delay: -1.16s; }
.typewriter_keys i:nth-child(23) { animation-delay: -1.08s; }
.typewriter_keys i:nth-child(24) { animation-delay: -1.00s; }
.typewriter_keys i:nth-child(25) { animation-delay: -0.92s; }
.typewriter_keys i:nth-child(26) { animation-delay: -0.84s; }
.typewriter_keys i:nth-child(27) { animation-delay: -0.76s; }

@keyframes crt_snow {
  0% { background-position: 0 0, 0 0; filter: brightness(0.8); }
  50% { background-position: 4px -3px, -2px 0; filter: brightness(1.35); }
  100% { background-position: -3px 2px, 4px 0; filter: brightness(0.92); }
}

@keyframes crt_roll {
  from { background-position: 0 0; }
  to { background-position: 0 18px; }
}

@keyframes crt_enemy_step {
  from { transform: translateX(-5%); }
  to { transform: translateX(10%); }
}

@keyframes crt_shot {
  0% { opacity: 0; transform: translateY(100%); }
  20%, 70% { opacity: 1; }
  100% { opacity: 0; transform: translateY(-280%); }
}

@keyframes typewriter_key {
  0%, 89%, 100% { opacity: 0.78; transform: translateY(0); filter: brightness(1); }
  90%, 96% { opacity: 0.12; transform: translateY(18%); filter: brightness(0.22); }
}

.portal_anomaly {
  position: absolute;
  top: 50%;
  left: 50%;
  width: clamp(11rem, 22vw, 19rem);
  aspect-ratio: 1;
  opacity: 0;
  filter: saturate(1.15) drop-shadow(0 0 2.8rem rgba(99, 238, 227, 0.18));
  transform: translate(-50%, -50%) scale(0.12) rotate(-18deg);
  transition: opacity 520ms ease, transform 1100ms var(--ease_glide);
  pointer-events: none;
}

.anomaly_shape,
.anomaly_core {
  position: absolute;
  display: block;
}

.anomaly_shape {
  inset: 8%;
  border: 1px solid rgba(246, 242, 233, 0.15);
  background:
    conic-gradient(from 28deg, transparent 0 8%, rgba(99, 238, 227, 0.74) 9% 15%, transparent 16% 31%, rgba(255, 79, 115, 0.66) 32% 41%, transparent 42% 54%, rgba(120, 168, 255, 0.76) 55% 69%, transparent 70% 82%, rgba(255, 189, 99, 0.58) 83% 89%, transparent 90%),
    radial-gradient(circle at 48% 54%, rgba(246, 242, 233, 0.22), transparent 42%);
  mix-blend-mode: screen;
  clip-path: polygon(48% 0, 62% 28%, 88% 8%, 76% 38%, 100% 52%, 69% 58%, 82% 93%, 55% 72%, 43% 100%, 34% 69%, 3% 83%, 24% 54%, 0 37%, 31% 32%);
}

.anomaly_shape_001 {
  animation: anomaly_turn 6.8s linear infinite;
}

.anomaly_shape_002 {
  inset: 17%;
  filter: hue-rotate(90deg) brightness(1.25);
  opacity: 0.76;
  transform: rotate(52deg) scale(1.14);
  animation: anomaly_counter 4.4s linear infinite;
}

.anomaly_shape_003 {
  inset: 29%;
  filter: hue-rotate(210deg) brightness(1.6);
  opacity: 0.58;
  transform: rotate(-23deg) scale(1.42);
  animation: anomaly_pulse 2.8s steps(3, end) infinite;
}

.anomaly_core {
  top: 50%;
  left: 50%;
  width: 2.1rem;
  height: 2.1rem;
  background: #05070d;
  border: 1px solid rgba(246, 242, 233, 0.55);
  box-shadow: 0 0 1rem rgba(246, 242, 233, 0.18), 0 0 3.2rem rgba(99, 238, 227, 0.38);
  clip-path: polygon(50% 0, 100% 34%, 79% 100%, 15% 83%, 0 26%);
  transform: translate(-50%, -50%);
}

@keyframes anomaly_turn {
  to { transform: rotate(360deg); }
}

@keyframes anomaly_counter {
  to { transform: rotate(-308deg) scale(1.14); }
}

@keyframes anomaly_pulse {
  0%, 100% { transform: rotate(-23deg) scale(1.18); opacity: 0.38; }
  50% { transform: rotate(8deg) scale(1.62); opacity: 0.84; }
}

.scene_anomaly .entry_selection,
.scene_thought_001 .entry_selection,
.scene_thought_002 .entry_selection,
.scene_thought_003 .entry_selection,
.scene_personas .entry_selection,
.scene_forming .entry_selection,
.scene_actor .entry_selection,
.scene_story .entry_selection,
.scene_play .entry_selection {
  opacity: 0;
  filter: blur(0.5rem);
  transform: translate(-50%, -53%) scale(0.96);
  pointer-events: none;
}

.scene_thought_001 .stage_sound_control,
.scene_thought_002 .stage_sound_control,
.scene_thought_003 .stage_sound_control,
.scene_personas .stage_sound_control,
.scene_forming .stage_sound_control,
.scene_actor .stage_sound_control,
.scene_story .stage_sound_control,
.scene_play .stage_sound_control {
  top: 71.5%;
  left: 85.5%;
}

.scene_thought_001 .stage_sound_label,
.scene_thought_002 .stage_sound_label,
.scene_thought_003 .stage_sound_label,
.scene_personas .stage_sound_label,
.scene_forming .stage_sound_label,
.scene_actor .stage_sound_label,
.scene_story .stage_sound_label,
.scene_play .stage_sound_label {
  right: calc(100% + 1rem);
  left: auto;
  transform: translate(0.55rem, -50%);
}

.scene_thought_001 .stage_sound_control:hover .stage_sound_label,
.scene_thought_002 .stage_sound_control:hover .stage_sound_label,
.scene_thought_003 .stage_sound_control:hover .stage_sound_label,
.scene_personas .stage_sound_control:hover .stage_sound_label,
.scene_forming .stage_sound_control:hover .stage_sound_label,
.scene_actor .stage_sound_control:hover .stage_sound_label,
.scene_story .stage_sound_control:hover .stage_sound_label,
.scene_play .stage_sound_control:hover .stage_sound_label,
.scene_thought_001 .stage_sound_control:focus-within .stage_sound_label,
.scene_thought_002 .stage_sound_control:focus-within .stage_sound_label,
.scene_thought_003 .stage_sound_control:focus-within .stage_sound_label,
.scene_personas .stage_sound_control:focus-within .stage_sound_label,
.scene_forming .stage_sound_control:focus-within .stage_sound_label,
.scene_actor .stage_sound_control:focus-within .stage_sound_label,
.scene_story .stage_sound_control:focus-within .stage_sound_label,
.scene_play .stage_sound_control:focus-within .stage_sound_label {
  transform: translate(0, -50%);
}

.scene_thought_001 .stage_volume_panel,
.scene_thought_002 .stage_volume_panel,
.scene_thought_003 .stage_volume_panel,
.scene_personas .stage_volume_panel,
.scene_forming .stage_volume_panel,
.scene_actor .stage_volume_panel,
.scene_story .stage_volume_panel,
.scene_play .stage_volume_panel {
  top: auto;
  right: -0.1rem;
  bottom: calc(100% + 0.85rem);
  left: auto;
  transform-origin: right bottom;
}

.scene_thought_001 .thoughtcraft,
.scene_thought_002 .thoughtcraft,
.scene_thought_003 .thoughtcraft,
.scene_personas .thoughtcraft {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.scene_thought_001 .thoughtcraft_crt,
.scene_thought_002 .thoughtcraft_crt,
.scene_thought_003 .thoughtcraft_crt,
.scene_thought_001 .typewriter_keys,
.scene_thought_002 .typewriter_keys,
.scene_thought_003 .typewriter_keys {
  opacity: 0.84;
}

.scene_thought_002 .thoughtcraft_state_001,
.scene_thought_003 .thoughtcraft_state_001,
.scene_personas .thoughtcraft_state_001 {
  opacity: 0;
  transform: scale(1.025);
}

.scene_thought_002 .thoughtcraft_state_002 {
  opacity: 1;
  transform: scale(1);
}

.scene_thought_003 .thoughtcraft_state_003,
.scene_personas .thoughtcraft_state_003 {
  opacity: 1;
  transform: scale(1);
}

.scene_thought_003 .thoughtcraft_state_002,
.scene_personas .thoughtcraft_state_002 {
  opacity: 0;
  transform: scale(1.04);
}

.scene_thought_002 .crt_game_signal,
.scene_thought_003 .crt_game_signal {
  opacity: 0.88;
  animation: game_signal 1.8s steps(1, end) infinite;
}

.scene_thought_002 .crt_static,
.scene_thought_003 .crt_static {
  opacity: 0.34;
}

.scene_thought_002 .thoughtcraft_crt {
  top: 22.9%;
  left: 76.15%;
  width: 6.85%;
  aspect-ratio: 1.36;
  transform: perspective(320px) rotateX(2deg) rotateY(-8deg) rotateZ(7.2deg) skewY(-1.1deg);
}

.scene_thought_001 .thoughtcraft_crt {
  top: 23.25%;
  left: 74.55%;
  width: 6.95%;
  aspect-ratio: 1.36;
  transform: perspective(320px) rotateX(2deg) rotateY(-9deg) rotateZ(5.8deg) skewY(-1.4deg);
}

.scene_thought_001 .typewriter_keys {
  top: 72.3%;
  left: 44.15%;
  width: 19.25%;
  transform: perspective(260px) rotateX(58deg) rotateY(-3deg) rotateZ(10.8deg) skewX(-2.4deg);
}

.scene_thought_002 .typewriter_keys {
  top: 72.8%;
  left: 44.65%;
  width: 18.7%;
  transform: perspective(260px) rotateX(58deg) rotateY(-3deg) rotateZ(11.3deg) skewX(-1.8deg);
}

.scene_thought_003 .thoughtcraft_crt {
  top: 39.25%;
  left: 46.55%;
  width: 6.75%;
  aspect-ratio: 1.18;
  transform: rotate(0deg);
}

.scene_thought_003 .typewriter_keys {
  top: 59.25%;
  left: 42.75%;
  grid-template-columns: repeat(8, 1fr);
  width: 15.5%;
  height: 9.6%;
  column-gap: 3.5%;
  row-gap: 5%;
  transform: perspective(480px) rotateX(9deg) rotateZ(0deg);
  transform-origin: 50% 50%;
}

.scene_thought_003 .typewriter_keys i:nth-child(n + 25) {
  display: none;
}

.scene_thought_002 .thoughtcraft_scan,
.scene_thought_003 .thoughtcraft_scan,
.scene_thought_003 .thoughtcraft_signal {
  opacity: 1;
  animation: thoughtcraft_scan 1.7s linear infinite;
}

.scene_personas .thoughtcraft {
  opacity: 0;
  filter: blur(0.75rem) brightness(1.8);
  transform: translate(-50%, -50%) scale(0.56);
}

@keyframes game_signal {
  0%, 9%, 42%, 47%, 100% { visibility: visible; }
  10%, 41%, 48%, 53% { visibility: hidden; }
}

@keyframes thoughtcraft_scan {
  from { transform: translateY(-24%); }
  to { transform: translateY(24%); }
}

.scene_anomaly .portal_anomaly,
.scene_personas .portal_anomaly,
.scene_forming .portal_anomaly,
.scene_actor .portal_anomaly,
.scene_story .portal_anomaly,
.scene_play .portal_anomaly {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1) rotate(0);
}

.scene_personas .portal_anomaly,
.scene_forming .portal_anomaly,
.scene_actor .portal_anomaly,
.scene_story .portal_anomaly,
.scene_play .portal_anomaly {
  opacity: 0.3;
  transform: translate(-50%, -50%) scale(0.52) rotate(34deg);
}

.persona_flicker {
  position: absolute;
  inset: 0;
  z-index: 15;
  overflow: hidden;
  opacity: 0;
  transition: opacity 120ms ease;
  pointer-events: none;
}

.scene_personas .persona_flicker {
  opacity: 1;
}

.persona_glimpse {
  position: absolute;
  top: 47%;
  left: 50%;
  display: block;
  width: var(--actor_width);
  height: var(--actor_height);
  opacity: 1;
  filter: drop-shadow(0 0 1.4rem rgba(104, 202, 255, 0.62));
  transform: translate(-50%, -50%);
}

.persona_glimpse_sprite {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: var(--pixel_size);
  height: var(--pixel_size);
  background: transparent;
  opacity: 0;
  animation: persona_part_flash var(--part_duration) steps(1, end) var(--part_delay) both;
}

@keyframes persona_part_flash {
  0%, 100% { opacity: 0; }
  6%, 88% { opacity: 0.9; }
}

.story_copy {
  position: absolute;
  top: clamp(7.5rem, 15vh, 10rem);
  right: clamp(1.5rem, 7vw, 8rem);
  left: clamp(1.5rem, 7vw, 8rem);
  z-index: 14;
  min-height: 12rem;
  color: var(--color_white);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-size: clamp(2.5rem, 5vw, 6.2rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.055em;
  pointer-events: none;
}

.story_line {
  display: block;
  min-height: 1.15em;
}

@media (min-width: 48rem) {
  .story_line {
    white-space: nowrap;
  }
}

.story_line_002 {
  margin-top: 0.08em;
  font-size: 1em;
  letter-spacing: -0.055em;
}

.story_line_active::after {
  display: inline-block;
  width: 1px;
  height: 0.92em;
  margin-left: 0.18em;
  content: "";
  background: rgba(246, 242, 233, 0.82);
  vertical-align: -0.08em;
  opacity: 0;
}

.story_typing .story_line_active::after,
.story_waiting .story_line_active::after {
  opacity: 1;
  animation: cursor_blink 760ms steps(1, end) infinite;
}

.story_advance_control {
  position: absolute;
  right: clamp(1.25rem, 4vw, 4.5rem);
  bottom: clamp(1.75rem, 4vw, 4rem);
  z-index: 31;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(246, 242, 233, 0.22);
  background: rgba(3, 5, 9, 0.62);
  color: rgba(246, 242, 233, 0.78);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  backdrop-filter: blur(10px);
  cursor: pointer;
  animation: advance_breathe 1.8s ease-in-out infinite;
}

.story_advance_control[hidden] { display: none; }

.game_next_control {
  position: absolute;
  right: clamp(1.25rem, 4vw, 4.5rem);
  bottom: clamp(1.75rem, 4vw, 4rem);
  z-index: 33;
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  min-height: 2.8rem;
  padding: 0.72rem 1rem;
  border: 1px solid rgba(99, 238, 227, 0.28);
  background: rgba(3, 5, 9, 0.72);
  color: rgba(246, 242, 233, 0.84);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
  backdrop-filter: blur(10px);
  animation: advance_breathe 1.8s ease-in-out infinite;
}

.game_next_control[hidden] { display: none; }

.game_next_arrow {
  display: inline-block;
  transition: transform 180ms ease;
}

.game_next_control:hover .game_next_arrow,
.game_next_control:focus-visible .game_next_arrow {
  transform: translateX(0.18rem);
}

.story_advance_key {
  display: grid;
  width: 1.8rem;
  height: 1.8rem;
  place-items: center;
  border: 1px solid rgba(99, 238, 227, 0.28);
  color: var(--color_cyan);
}

@keyframes advance_breathe {
  50% { border-color: rgba(99, 238, 227, 0.52); color: var(--color_white); }
}

@keyframes cursor_blink {
  50% { opacity: 0; }
}

.actor_adoko {
  position: absolute;
  bottom: calc(16% + 0.3rem);
  left: 0;
  z-index: 19;
  width: var(--actor_width);
  height: var(--actor_height);
  opacity: 0;
  transform: translate3d(var(--actor_x), 3rem, 0) scale(0.24);
  transform-origin: center bottom;
  transition: transform 820ms var(--ease_glide), opacity 500ms ease;
  will-change: transform;
  pointer-events: none;
}

.actor_particles {
  position: absolute;
  bottom: calc(16% + 0.3rem);
  left: 0;
  z-index: 17;
  width: var(--actor_width);
  height: var(--actor_height);
  opacity: 0;
  transform: translate3d(var(--actor_x), 0, 0);
  pointer-events: none;
}

.scene_forming .actor_particles {
  opacity: 1;
}

.actor_pixel {
  position: absolute;
  top: var(--pixel_y);
  left: var(--pixel_x);
  display: block;
  width: var(--pixel_size);
  height: var(--pixel_size);
  background: var(--pixel_color);
  box-shadow: 0 0 0.65rem color-mix(in srgb, var(--pixel_color) 48%, transparent);
  opacity: 0;
  animation: pixel_form var(--pixel_duration) var(--ease_glide) var(--pixel_delay) forwards;
}

@keyframes pixel_form {
  0% {
    opacity: 0;
    transform: translate(var(--pixel_from_x), var(--pixel_from_y)) scale(0.1) rotate(var(--pixel_turn));
  }
  18% { opacity: 0.78; }
  72% { opacity: 1; }
  100% {
    opacity: 1;
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
}

.scene_actor .actor_adoko,
.scene_story .actor_adoko,
.scene_play .actor_adoko {
  opacity: 1;
  transform: translate3d(var(--actor_x), var(--actor_jump_y), 0) scale(1);
}

.actor_sprite_group {
  position: absolute;
  inset: 0;
  display: block;
  transform-origin: center bottom;
}

.actor_sprite {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  background: transparent;
}

.actor_aura {
  position: absolute;
  right: 8%;
  bottom: -4%;
  left: 8%;
  height: 10%;
  display: block;
  background: linear-gradient(90deg, transparent, rgba(99, 238, 227, 0.76), transparent);
  filter: blur(0.4rem);
  opacity: 0.55;
}

.actor_facing_right .actor_sprite_group {
  transform: scaleX(-1);
}

.actor_walking .actor_sprite_group {
  animation: actor_step 190ms steps(2, end) infinite alternate;
}

.actor_stamping .actor_sprite_group {
  animation: actor_stamp 360ms var(--ease_glide);
}

@keyframes actor_step {
  from { translate: 0 0; }
  to { translate: 0 -0.38rem; }
}

@keyframes actor_stamp {
  0% { translate: 0 0; rotate: 0deg; }
  38% { translate: 0 0.72rem; rotate: -4deg; }
  58% { translate: 0 0.72rem; rotate: 3deg; }
  100% { translate: 0 0; rotate: 0deg; }
}

.inline_game_active .actor_adoko {
  transition: none;
}

.actor_running .actor_sprite_group {
  animation: actor_run 240ms steps(2, end) infinite alternate;
}

.actor_jumping_small .actor_sprite_group,
.actor_jumping_medium .actor_sprite_group,
.actor_jumping_large .actor_sprite_group {
  animation: actor_jump_pose 280ms steps(2, end) infinite alternate;
}

.actor_crashed .actor_sprite_group {
  animation: actor_crash 760ms steps(5, end) both;
}

@keyframes actor_run {
  from { translate: 0 0; }
  to { translate: 0 -0.3rem; }
}

@keyframes actor_jump_pose {
  from { rotate: -2deg; }
  to { rotate: 3deg; }
}

@keyframes actor_crash {
  0% { opacity: 1; filter: none; transform: scale(1); }
  22% { filter: brightness(2.4) saturate(0); transform: translate(-0.4rem, -0.2rem) scale(1.04); }
  48% { opacity: 0.78; filter: hue-rotate(90deg); transform: translate(0.55rem, 0.18rem) scale(0.94); }
  100% { opacity: 0.14; filter: blur(0.2rem); transform: translateY(1.4rem) scale(0.72); }
}

.inline_game_field {
  position: absolute;
  inset: 0;
  z-index: 15;
  overflow: hidden;
  pointer-events: none;
}

.inline_game_obstacle {
  position: absolute;
  bottom: calc(16% + 0.3rem);
  left: 0;
  display: block;
  filter: drop-shadow(0 0 0.45rem hsl(var(--obstacle_hue) 92% 66% / 0.72));
  will-change: transform;
}

.inline_game_obstacle::before,
.inline_game_obstacle::after {
  position: absolute;
  display: block;
  border: 1px solid hsl(var(--obstacle_hue) 88% 68% / 0.38);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.inline_game_obstacle::before {
  inset: -0.65rem;
  animation: potion_orbit 1.8s linear infinite;
}

.inline_game_obstacle::after {
  inset: -1.2rem;
  border-style: dotted;
  opacity: 0.45;
  animation: potion_orbit 3.2s linear infinite reverse;
}

.inline_game_obstacle_pixels {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  background: transparent;
  image-rendering: pixelated;
}

@keyframes potion_orbit {
  to { rotate: 1turn; }
}

.jump_guide {
  position: absolute;
  bottom: calc(16% + var(--actor_height) + 1.35rem);
  left: calc(var(--actor_x) + var(--actor_width) + 1.1rem);
  z-index: 27;
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 0.45rem 0.7rem;
  min-width: 12.5rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(99, 238, 227, 0.24);
  background: rgba(3, 5, 9, 0.72);
  box-shadow: 0 1.4rem 4rem rgba(0, 0, 0, 0.34), inset 0 0 1.8rem rgba(99, 238, 227, 0.035);
  backdrop-filter: blur(12px);
  transform: translateY(-0.25rem);
}

.jump_guide[hidden],
.inline_game_hud[hidden] {
  display: none;
}

.jump_guide_line {
  position: absolute;
  bottom: -1.05rem;
  left: -1.3rem;
  width: 2.8rem;
  height: 1.4rem;
  border-bottom: 1px solid rgba(99, 238, 227, 0.35);
  border-left: 1px solid rgba(99, 238, 227, 0.35);
  transform: skewX(-38deg);
}

.jump_guide_title {
  color: rgba(246, 242, 233, 0.54);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.jump_guide_keys {
  display: flex;
  gap: 0.38rem;
}

.jump_control {
  display: grid;
  grid-template-columns: 1fr;
  place-items: center;
  width: 2.55rem;
  height: 2.55rem;
  padding: 0.18rem 0;
  border: 1px solid rgba(246, 242, 233, 0.22);
  border-radius: 0.2rem;
  background: rgba(7, 16, 29, 0.86);
  color: var(--color_white);
  box-shadow: inset 0 -0.2rem rgba(0, 0, 0, 0.36);
  transition: border-color 150ms ease, background 150ms ease, box-shadow 150ms ease, transform 150ms ease;
  pointer-events: auto;
  touch-action: manipulation;
  cursor: pointer;
}

.jump_control:hover,
.jump_control:focus-visible {
  background: rgba(17, 38, 56, 0.96);
  box-shadow: inset 0 -0.16rem rgba(0, 0, 0, 0.32), 0 0.5rem 1.4rem rgba(0, 0, 0, 0.3);
  transform: translateY(-0.12rem);
}

.jump_control:active {
  box-shadow: inset 0 -0.05rem rgba(0, 0, 0, 0.28);
  transform: translateY(0.08rem);
}

.jump_control span {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
  font-weight: 900;
  line-height: 1;
}

.jump_control small {
  color: rgba(246, 242, 233, 0.55);
  font-size: 0.55rem;
  line-height: 1;
}

.jump_control_small { border-color: rgba(120, 168, 255, 0.54); }
.jump_control_medium { border-color: rgba(99, 238, 227, 0.54); }
.jump_control_large { border-color: rgba(255, 79, 115, 0.58); }

.inline_game_hud {
  position: absolute;
  top: clamp(5.5rem, 11vh, 7.5rem);
  left: 50%;
  z-index: 29;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  transform: translateX(-50%);
}

.inline_game_score {
  min-width: 4.2rem;
  color: rgba(246, 242, 233, 0.78);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-align: center;
}

.inline_game_exit {
  padding: 0.38rem 0.55rem;
  border: 1px solid rgba(246, 242, 233, 0.17);
  background: rgba(3, 5, 9, 0.52);
  color: rgba(246, 242, 233, 0.55);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.inline_game_crashed .inline_game_obstacle {
  filter: saturate(0) brightness(1.5) drop-shadow(0 0 0.8rem rgba(255, 79, 115, 0.9));
}

.stamp_field {
  position: absolute;
  inset: 0;
  z-index: 13;
  overflow: hidden;
  pointer-events: none;
}

.stamp_wave {
  position: absolute;
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--stamp_color, var(--color_cyan));
  border-radius: 50%;
  color: var(--stamp_color, var(--color_cyan));
  box-shadow: 0 0 1.4rem color-mix(in srgb, currentColor 42%, transparent);
  transform: translate(-50%, -50%) scale(0.2);
  animation: stamp_expand 1600ms var(--ease_glide) forwards;
}

.stamp_monogram {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  width: 3.6rem;
  height: 3.6rem;
  align-items: center;
  justify-content: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: currentColor;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.08em;
  transform: translate(-50%, -50%) scale(0.18) rotate(-9deg);
  animation: stamp_seal 740ms var(--ease_glide) forwards;
}

.stamp_monogram_p {
  display: inline-block;
}

.stamp_monogram_p_001 {
  color: var(--color_white);
}

.stamp_monogram_p_002 {
  margin-left: -0.38em;
  color: var(--color_coral);
  text-shadow: 0.14em 0 var(--color_cyan);
  transform: translateY(0.08em) rotate(2deg);
}

.stamp_wave::after {
  position: absolute;
  inset: -34%;
  display: block;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "";
  opacity: 0.38;
}

@keyframes stamp_expand {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.2); }
  12% { opacity: 0.9; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(54); }
}

@keyframes stamp_seal {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(1.8) rotate(-22deg); }
  42% { opacity: 1; transform: translate(-50%, -50%) scale(0.88) rotate(-7deg); }
  72% { opacity: 0.88; transform: translate(-50%, -50%) scale(1) rotate(-9deg); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.06) rotate(-9deg); }
}

.game_rift {
  position: absolute;
  bottom: 17%;
  left: 0;
  z-index: 18;
  width: clamp(4rem, 8vw, 7rem);
  height: clamp(10rem, 28vh, 17rem);
  padding: 0;
  background: transparent;
  opacity: 0;
  transform: translateX(-70%);
  transition: opacity 700ms ease, transform 900ms var(--ease_glide);
  pointer-events: none;
}

.game_rift_open {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.game_rift_prompt {
  position: absolute;
  top: 50%;
  left: 58%;
  z-index: 2;
  display: block;
  color: rgba(246, 242, 233, 0.82);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-90deg) translateY(0.5rem);
  transition: opacity 300ms ease 480ms, transform 500ms var(--ease_glide) 480ms;
}

.game_rift_open .game_rift_prompt {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(-90deg) translateY(0);
}

.game_rift_visual,
.game_rift_line,
.game_rift_light,
.game_rift_dust {
  position: absolute;
  display: block;
}

.game_rift_visual {
  inset: 0;
}

.game_rift_line {
  top: 3%;
  bottom: 3%;
  left: 42%;
  width: 1px;
  background: linear-gradient(transparent, var(--color_cyan) 18%, var(--color_white) 54%, var(--color_coral) 82%, transparent);
  box-shadow: 0 0 1.2rem rgba(99, 238, 227, 0.8), 0 0 4rem rgba(120, 168, 255, 0.42);
  animation: rift_flicker 2.3s steps(3, end) infinite;
}

.game_rift_light {
  inset: 0 0 0 -40%;
  background: linear-gradient(90deg, rgba(99, 238, 227, 0.11), transparent 68%);
  clip-path: polygon(0 12%, 58% 0, 100% 48%, 62% 100%, 0 86%);
}

.game_rift_dust {
  width: 0.24rem;
  height: 0.24rem;
  background: var(--color_cyan);
  box-shadow: 0 0 1rem currentColor;
  animation: rift_dust 2s ease-in-out infinite alternate;
}

.game_rift_dust_001 { top: 18%; left: 64%; }
.game_rift_dust_002 { top: 57%; left: 22%; color: var(--color_coral); animation-delay: -0.7s; }
.game_rift_dust_003 { bottom: 12%; left: 72%; color: var(--color_blue); animation-delay: -1.4s; }

@keyframes rift_flicker {
  0%, 100% { opacity: 0.55; transform: scaleY(0.9); }
  45% { opacity: 1; transform: scaleY(1.02); }
}

@keyframes rift_dust {
  from { opacity: 0.2; transform: translate(-0.35rem, 0.65rem); }
  to { opacity: 1; transform: translate(0.65rem, -0.5rem); }
}

.experience_controls {
  position: absolute;
  top: 71.5%;
  left: calc(85.5% + 3.8rem);
  z-index: 32;
  display: flex;
  align-items: center;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.78);
  transition: opacity 480ms ease, transform 480ms var(--ease_glide);
  pointer-events: none;
}

.scene_thought_001 .experience_controls,
.scene_thought_002 .experience_controls,
.scene_thought_003 .experience_controls,
.scene_personas .experience_controls,
.scene_forming .experience_controls,
.scene_actor .experience_controls,
.scene_story .experience_controls,
.scene_play .experience_controls {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.movement_guide_actor {
  position: absolute;
  bottom: calc(16% + 0.45rem);
  left: calc(var(--actor_x) - 7.6rem);
  z-index: 27;
  display: grid;
  grid-template-columns: 6rem var(--actor_width) 6rem;
  align-items: center;
  gap: 1.6rem;
  opacity: 0;
  transform: translateY(0.8rem);
  transition: left 820ms var(--ease_glide), opacity 420ms ease, transform 520ms var(--ease_glide);
  pointer-events: none;
}

.scene_play .movement_guide_actor {
  opacity: 1;
  transform: translateY(0);
}

.movement_guide_actor_space {
  display: block;
  width: var(--actor_width);
  height: 1px;
}

.movement_guide_actor_label {
  position: absolute;
  bottom: calc(16% + var(--actor_height) + 5rem);
  left: calc(var(--actor_x) - 0.25rem);
  z-index: 27;
  min-width: max-content;
  padding: 0.55rem 0.7rem;
  color: rgba(246, 242, 233, 0.92);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.035em;
  text-shadow: 0 0 1.2rem rgba(99, 238, 227, 0.12), 0 0.5rem 1.4rem rgba(0, 0, 0, 0.46);
  white-space: nowrap;
  opacity: 0;
  transition: left 1480ms cubic-bezier(0.22, 0.5, 0.26, 1) 120ms, opacity 420ms ease;
  animation: guide_float_label 3.7s ease-in-out -1.4s infinite alternate;
  pointer-events: none;
}

.scene_play .movement_guide_actor_label {
  opacity: 1;
}

.move_guide_arrow {
  display: block;
  width: 6rem;
  height: 4.2rem;
  color: rgba(246, 242, 233, 0.78);
  filter: drop-shadow(0 0.7rem 1rem rgba(0, 0, 0, 0.5)) drop-shadow(0 0 0.65rem rgba(99, 238, 227, 0.08));
  opacity: 1;
  transition: opacity 520ms ease;
}

.move_guide_arrow_svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.move_guide_arrow_line {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.move_guide_arrow_left {
  animation: guide_float_left 3.2s ease-in-out -0.7s infinite alternate;
}

.move_guide_arrow_left .move_guide_arrow_svg {
  transform: scaleX(-1);
}

.move_guide_arrow_right {
  animation: guide_float_right 3.45s ease-in-out -2s infinite alternate;
}

.guide_moved .move_guide_arrow {
  opacity: 0.5;
}

@keyframes guide_float_left {
  from { transform: translate3d(-0.1rem, 0.12rem, 0) rotate(-0.5deg); }
  to { transform: translate3d(0.12rem, -0.24rem, 0) rotate(0.7deg); }
}

@keyframes guide_float_right {
  from { transform: translate3d(0.08rem, -0.12rem, 0) rotate(0.6deg); }
  to { transform: translate3d(-0.1rem, 0.26rem, 0) rotate(-0.7deg); }
}

@keyframes guide_float_label {
  from { translate: 0 0.12rem; }
  to { translate: 0.14rem -0.18rem; }
}

.replay_control {
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(246, 242, 233, 0.17);
  background: rgba(3, 5, 9, 0.54);
  color: var(--color_white);
  backdrop-filter: blur(10px);
}

.replay_control {
  position: relative;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  color: rgba(246, 242, 233, 0.68);
  transition: border-color 240ms ease, color 240ms ease, transform 320ms var(--ease_glide);
}

.replay_mark {
  font-size: 1.45rem;
  line-height: 1;
  transition: transform 360ms var(--ease_glide);
}

.replay_label {
  position: absolute;
  bottom: calc(100% + 0.72rem);
  left: 0;
  padding: 0.25rem 0;
  color: rgba(246, 242, 233, 0.92);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.035em;
  text-shadow: 0 0 1.2rem rgba(99, 238, 227, 0.14), 0 0.5rem 1.4rem rgba(0, 0, 0, 0.46);
  white-space: nowrap;
  opacity: 0;
  transform: translate(-0.12rem, 0.4rem) rotate(7deg);
  transform-origin: left center;
  transition: opacity 240ms ease, transform 320ms var(--ease_glide);
  pointer-events: none;
}

.replay_control:hover,
.replay_control:focus-visible {
  border-color: rgba(99, 238, 227, 0.52);
  color: var(--color_white);
}

.replay_control:hover .replay_mark,
.replay_control:focus-visible .replay_mark {
  transform: rotate(-24deg);
}

.replay_control:hover .replay_label,
.replay_control:focus-visible .replay_label {
  opacity: 1;
  transform: translate(0, 0) rotate(7deg);
}

.guide_complete .movement_guide_actor,
.guide_complete .movement_guide_actor_label,
.inline_game_active .movement_guide_actor,
.inline_game_active .movement_guide_actor_label {
  opacity: 0;
  transform: translateY(0.65rem);
  pointer-events: none;
}

.site_mode {
  --site_bg_top: rgb(7 16 27);
  --site_bg_bottom: rgb(3 5 9);
  --site_glow_primary: rgb(99 238 227 / 0.09);
  --site_glow_secondary: rgb(120 168 255 / 0.06);
  position: relative;
  min-height: 100svh;
  /* hidden は sticky のスクロール基準を奪うため、切り抜きだけを行う。 */
  overflow: clip;
  background: var(--site_bg_bottom);
}

.site_mode_glow {
  position: sticky;
  top: 0;
  z-index: 0;
  width: 100%;
  height: 100svh;
  margin-bottom: -100svh;
  background:
    radial-gradient(ellipse 56rem 42rem at 13% 29%, var(--site_glow_primary), transparent 69%),
    radial-gradient(ellipse 48rem 40rem at 82% 66%, var(--site_glow_secondary), transparent 72%),
    linear-gradient(145deg, var(--site_bg_top), var(--site_bg_bottom) 76%);
  pointer-events: none;
}

.site_mode_inner {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 100svh;
  align-content: center;
  padding: clamp(7rem, 13vw, 12rem) clamp(1.5rem, 8vw, 9rem) clamp(4rem, 8vw, 8rem);
}

.site_hero {
  isolation: isolate;
}

.site_local_nav {
  position: absolute;
  top: clamp(7rem, 12vw, 10rem);
  right: clamp(1.5rem, 8vw, 9rem);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.site_local_nav_inner {
  display: flex;
  gap: clamp(1rem, 2.4vw, 2.6rem);
}

.site_local_nav a {
  color: rgba(246, 242, 233, 0.68);
  text-decoration: none;
}

.site_local_nav a:hover,
.site_local_nav a:focus-visible {
  color: var(--color_white);
}

.site_local_nav[hidden] {
  display: none;
}

.site_heading {
  max-width: 13ch;
  font-size: clamp(3rem, 7.2vw, 8.8rem);
  font-weight: 650;
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.site_heading_line {
  display: inline-block;
  white-space: nowrap;
}

.site_lead {
  margin: clamp(2rem, 5vw, 4rem) 0 0;
  font-size: clamp(1.25rem, 2.5vw, 2.25rem);
  line-height: 1.65;
}

.service_line {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  margin-top: clamp(3rem, 8vw, 7rem);
  color: rgba(246, 242, 233, 0.62);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(0.82rem, 1.4vw, 1.05rem);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.site_slide_advance {
  position: absolute;
  right: clamp(1.5rem, 8vw, 9rem);
  bottom: clamp(2rem, 5vw, 4.5rem);
  z-index: 4;
}

.site_slide_advance_link {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  min-height: 2.65rem;
  color: rgba(246, 242, 233, 0.72);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
  transition: color 180ms ease, transform 180ms ease;
}

.site_slide_advance_link:hover {
  color: var(--color_white);
  transform: translateX(0.18rem);
}

.site_slide_advance_arrow {
  display: inline-block;
  transition: transform 180ms ease;
}

.site_slide_advance_fixed {
  position: fixed;
  right: clamp(1.25rem, 4vw, 4.5rem);
  bottom: clamp(1.75rem, 4vw, 4rem);
  z-index: 45;
}

.site_slide_advance_fixed[hidden] { display: none; }

.site_slide_advance_fixed_link {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  min-height: 2.8rem;
  padding: 0.72rem 1rem;
  border: 1px solid rgba(246, 242, 233, 0.16);
  background: rgba(3, 5, 9, 0.62);
  color: rgba(246, 242, 233, 0.78);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.site_slide_advance_fixed_link:hover,
.site_slide_advance_fixed_link:focus-visible {
  border-color: rgba(99, 238, 227, 0.42);
  color: var(--color_white);
  transform: translateX(0.18rem);
}

.site_slide_advance_fixed_arrow {
  display: inline-block;
  transition: transform 180ms ease;
}

.site_slide_advance_fixed_link:hover .site_slide_advance_fixed_arrow,
.site_slide_advance_fixed_link:focus-visible .site_slide_advance_fixed_arrow {
  transform: translateX(0.18rem);
}

.site_slide_advance_link:hover .site_slide_advance_arrow,
.site_slide_advance_link:focus-visible .site_slide_advance_arrow {
  transform: translateX(0.18rem);
}

.site_slide_advance_link_top:hover .site_slide_advance_arrow,
.site_slide_advance_link_top:focus-visible .site_slide_advance_arrow {
  transform: translateY(-0.18rem);
}

.site_section {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  padding: clamp(7rem, 11vw, 11rem) clamp(1.5rem, 8vw, 9rem);
  border-top: 1px solid rgba(246, 242, 233, 0.1);
}

.site_section_layout {
  display: grid;
  grid-template-columns: minmax(4rem, 14vw) minmax(0, 1fr);
}

/* 色の物語は、スライドの箱ではなく site_mode 背面の1枚で連続変化させる。 */
.site_section_business {
  background: transparent;
}

.site_section_cms {
  background: transparent;
}

.site_section_personas {
  background: transparent;
}

.site_section_contact {
  background: transparent;
}

.site_section_number {
  padding-top: 0.3rem;
  color: rgba(246, 242, 233, 0.34);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.site_section_body {
  width: min(100%, 76rem);
}

.site_section_kicker {
  margin: 0 0 clamp(1.5rem, 4vw, 3.5rem);
  color: var(--color_cyan);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.site_section_heading {
  max-width: 16ch;
  font-size: clamp(2.7rem, 6.2vw, 7rem);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.065em;
}

.site_section_text {
  max-width: 42rem;
  margin: clamp(2rem, 5vw, 4rem) 0 0;
  color: rgba(246, 242, 233, 0.72);
  font-size: clamp(1rem, 1.65vw, 1.35rem);
  line-height: 2;
}

.service_index {
  margin-top: clamp(4rem, 8vw, 8rem);
}

.service_item {
  display: grid;
  grid-template-columns: 4rem minmax(13rem, 0.7fr) minmax(14rem, 1fr);
  gap: 1rem;
  align-items: baseline;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(246, 242, 233, 0.17);
}

.service_item > span,
.cms_choice > p:first-child {
  color: rgba(246, 242, 233, 0.34);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.68rem;
}

.service_name {
  font-size: clamp(1.25rem, 2.2vw, 2rem);
  font-weight: 650;
  letter-spacing: -0.035em;
}

.service_item > p,
.cms_choice > p:last-child {
  margin: 0;
  color: rgba(246, 242, 233, 0.62);
  line-height: 1.8;
}

.business_links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.business_works_link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: min(100%, 22rem);
  min-height: 3.8rem;
  padding: 0.9rem 1.15rem;
  border: 1px solid rgba(99, 238, 227, 0.28);
  color: rgba(246, 242, 233, 0.78);
  font-size: 0.82rem;
  text-decoration: none;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease, transform 180ms ease;
}

.business_works_link:hover,
.business_works_link:focus-visible {
  border-color: var(--color_cyan);
  background: rgba(99, 238, 227, 0.06);
  color: var(--color_white);
  transform: translateY(-0.14rem);
}

.cms_selector {
  margin-top: clamp(4rem, 8vw, 8rem);
  border-top: 1px solid rgba(246, 242, 233, 0.24);
  border-bottom: 1px solid rgba(246, 242, 233, 0.24);
}

.cms_history {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin: clamp(2rem, 4vw, 3.5rem) 0 clamp(2.2rem, 5vw, 4.5rem);
  color: rgba(246, 242, 233, 0.72);
}

.cms_history_lead {
  font-size: clamp(0.9rem, 1.5vw, 1.2rem);
  letter-spacing: 0.06em;
}

.cms_history_years {
  color: var(--color_amber);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(4rem, 10vw, 8.5rem);
  font-weight: 800;
  letter-spacing: -0.08em;
  line-height: 0.82;
}

.cms_history_unit {
  color: var(--color_amber);
  font-size: clamp(1.2rem, 2.5vw, 2.2rem);
  font-weight: 700;
}

.cms_selector summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.8rem 0;
  font-size: clamp(1.5rem, 3vw, 2.8rem);
  font-weight: 700;
  list-style: none;
  cursor: pointer;
}

.cms_selector summary::-webkit-details-marker { display: none; }

.cms_selector_action {
  color: rgba(246, 242, 233, 0.54);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.cms_selector_action::after {
  display: inline-block;
  margin-left: 0.8rem;
  content: "+";
  color: var(--color_cyan);
  font-size: 1.2rem;
}

.cms_selector[open] .cms_selector_action::after { content: "−"; }

.cms_choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(16rem, 100%), 1fr));
  gap: 1px;
  padding: 0 0 2rem;
  background: rgba(246, 242, 233, 0.1);
}

.cms_choice {
  padding: clamp(1.5rem, 4vw, 3.5rem);
  background: #07101b;
}

.cms_choice .service_name {
  margin: 1rem 0 2rem;
}

.persona_demo_control,
.contact_preview_note {
  display: inline-flex;
  margin-top: 2.5rem;
  padding: 0.9rem 1.15rem;
  border: 1px solid rgba(246, 242, 233, 0.2);
  background: transparent;
  color: rgba(246, 242, 233, 0.55);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
}

@media (max-width: 47.99rem) {
  .brand_link {
    top: 1.35rem;
    left: 1.2rem;
  }

  .experience_actions {
    top: 0.82rem;
    right: 0.75rem;
    gap: 0.25rem;
  }

  .sound_control {
    width: 2.8rem;
    height: 2.8rem;
  }

  .stage_sound_control {
    top: calc(50% + 4.65rem);
    right: 0.75rem;
    left: auto;
    width: 2.8rem;
    height: 2.8rem;
    transform: translate(0, -50%);
  }

  .stage_sound_label {
    right: calc(100% + 0.8rem);
    left: auto;
    transform: translate(0.55rem, -50%);
  }

  .scene_thought_001 .stage_sound_control,
  .scene_thought_002 .stage_sound_control,
  .scene_thought_003 .stage_sound_control,
  .scene_personas .stage_sound_control,
  .scene_forming .stage_sound_control,
  .scene_actor .stage_sound_control,
  .scene_story .stage_sound_control,
  .scene_play .stage_sound_control {
    top: 72%;
    right: auto;
    left: 76%;
    transform: translate(-50%, -50%);
  }

  .scene_story .stage_sound_control {
    top: 60%;
  }

  .stage_volume_panel,
  .header_volume_panel {
    right: -0.25rem;
    left: auto;
    grid-template-columns: auto minmax(5rem, 1fr);
    width: min(12rem, calc(100vw - 2rem));
  }

  .opening_skip {
    font-size: 0.62rem;
    letter-spacing: 0.12em;
  }

  .site_slide_advance {
    right: 1.5rem;
    bottom: 1.85rem;
  }

  .site_slide_advance_link {
    font-size: 0.62rem;
    letter-spacing: 0.12em;
  }

  .header_site_nav_inner {
    gap: 0.55rem;
  }

  .header_site_nav a {
    font-size: 0.58rem;
    letter-spacing: 0.02em;
  }

  .story_copy {
    top: 22%;
    right: 1.25rem;
    left: 1.25rem;
    min-height: 11rem;
    font-size: clamp(2.25rem, 11.5vw, 4.1rem);
    line-height: 1.2;
  }

  .story_line_002 {
    font-size: 1em;
  }

  .entry_selection {
    top: 50%;
  }

  .portal_control {
    width: min(27rem, calc(100vw - 2rem));
    min-height: 3.6rem;
    padding: 0.68rem 1rem;
  }

  .portal_name {
    font-size: clamp(0.88rem, 4vw, 1rem);
  }

  .thoughtcraft {
    width: min(128vw, 46rem);
  }

  .story_advance_control {
    right: 1.25rem;
    bottom: 1.25rem;
    max-width: calc(100vw - 2.5rem);
  }

  .game_next_control,
  .site_slide_advance_fixed {
    right: 1.25rem;
    bottom: 1.25rem;
  }

  .game_next_control,
  .site_slide_advance_fixed_link {
    font-size: 0.62rem;
    letter-spacing: 0.12em;
  }

  .portal_anomaly {
    width: 12rem;
  }

  .space_floor {
    bottom: 19%;
  }

  .actor_adoko {
    bottom: calc(19% + 0.2rem);
  }

  .movement_guide_actor {
    bottom: calc(19% + 0.45rem);
    left: calc(var(--actor_x) - 3.85rem);
    grid-template-columns: 3.2rem var(--actor_width) 3.2rem;
    gap: 0.65rem;
  }

  .movement_guide_actor_label {
    bottom: calc(19% + var(--actor_height) + 4.2rem);
    right: 1rem;
    left: 1rem;
    padding: 0.4rem 0.35rem;
    font-size: clamp(0.78rem, 3.3vw, 1rem);
    max-width: none;
    min-width: 0;
    text-align: center;
    white-space: nowrap;
  }

  .move_guide_arrow {
    width: 3.2rem;
    height: 2.6rem;
  }

  .actor_particles {
    bottom: calc(19% + 0.2rem);
  }

  .inline_game_obstacle {
    bottom: calc(19% + 0.2rem);
  }

  .jump_guide {
    right: 0.85rem;
    bottom: calc(19% + var(--actor_height) + 1rem);
    left: auto;
    min-width: 11.4rem;
    padding: 0.55rem 0.6rem;
  }

  .jump_guide_line {
    right: 1rem;
    left: auto;
    transform: scaleX(-1) skewX(-38deg);
  }

  .jump_control {
    width: 2.35rem;
    height: 2.35rem;
  }

  .game_rift {
    bottom: 20%;
    height: 10rem;
  }

  .experience_controls {
    top: 72%;
    left: calc(76% + 3.4rem);
  }

  .replay_label {
    left: -1.15rem;
    font-size: clamp(1rem, 4.4vw, 1.2rem);
  }

  .scene_story .experience_controls {
    top: 60%;
  }

  .service_line {
    display: grid;
    gap: 0.85rem;
  }

  .site_local_nav {
    top: 6.5rem;
    right: 1.5rem;
    left: 1.5rem;
  }

  .site_local_nav_inner {
    justify-content: space-between;
    gap: 0.6rem;
  }

  .site_heading {
    font-size: clamp(1.7rem, 8vw, 3rem);
  }

  .site_section_layout {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .site_section {
    min-height: auto;
    padding-top: 7rem;
    padding-bottom: 7rem;
  }

  .service_item {
    grid-template-columns: 2.5rem 1fr;
  }

  .service_item > p {
    grid-column: 2;
  }

  .cms_choices {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto;
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    transition-duration: 0.01ms;
  }
}