:root {
  color-scheme: dark;
  --bg: #05080a;
  --bg-soft: #081014;
  --surface: rgba(9, 18, 22, 0.78);
  --surface-strong: rgba(8, 15, 18, 0.94);
  --text: #e8f0ef;
  --text-soft: #9eafad;
  --text-faint: #607170;
  --signal: #71d8d1;
  --signal-rgb: 113, 216, 209;
  --hairline: rgba(200, 234, 231, 0.13);
  --hairline-strong: rgba(200, 234, 231, 0.28);
  --ease-heavy: cubic-bezier(0.22, 0.8, 0.22, 1);
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --layer-scene: 1;
  --layer-ui: 3;
  --layer-node: 4;
  --layer-boot: 6;
  --layer-dialog: 8;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--bg);
}

body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "Aptos", "SF Pro Text", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: calc(var(--layer-dialog) + 1);
  background-image:
    repeating-radial-gradient(circle at 18% 31%, rgba(255, 255, 255, 0.018) 0 0.6px, transparent 0.8px 3px),
    repeating-radial-gradient(circle at 77% 64%, rgba(113, 216, 209, 0.014) 0 0.5px, transparent 0.8px 4px);
  content: "";
  opacity: 0.38;
  pointer-events: none;
}

.video-player {
  position: fixed;
  inset: 0;
  z-index: calc(var(--layer-dialog) + 3);
  display: grid;
  place-items: center;
  padding: clamp(12px, 2vw, 32px);
  background: rgba(0, 0, 0, 0.96);
  backdrop-filter: blur(18px);
}

.video-player[hidden] {
  display: none;
}

.video-player__media {
  width: min(100%, 1280px);
  max-height: calc(100dvh - clamp(24px, 4vw, 64px));
  background: #000;
  box-shadow: 0 0 0 1px rgba(var(--signal-rgb), 0.16), 0 28px 90px rgba(0, 0, 0, 0.65);
  object-fit: contain;
}

.video-player__close {
  position: fixed;
  top: clamp(16px, 2.5vw, 32px);
  right: clamp(16px, 2.5vw, 32px);
  z-index: 1;
  display: grid;
  width: 44px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(220, 245, 243, 0.38);
  border-radius: 50%;
  background: rgba(5, 8, 10, 0.68);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.video-player__close:hover,
.video-player__close:focus-visible {
  border-color: var(--signal);
  outline: none;
  box-shadow: 0 0 20px rgba(var(--signal-rgb), 0.18);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: calc(var(--layer-dialog) + 2);
  padding: 0.75rem 1rem;
  background: var(--text);
  color: var(--bg);
  font-size: 0.8125rem;
  font-weight: 600;
  transform: translateY(-180%);
  transition: transform 240ms var(--ease-heavy);
}

.skip-link:focus {
  transform: translateY(0);
}

.atmosphere,
.atmosphere__halo,
.atmosphere__grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.atmosphere {
  z-index: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 64% 48%, rgba(38, 89, 89, 0.14), transparent 26%),
    radial-gradient(circle at 50% 118%, rgba(45, 95, 92, 0.1), transparent 40%),
    var(--bg);
}

.atmosphere::before {
  position: absolute;
  top: 8%;
  left: 3%;
  width: 118%;
  height: 78%;
  background:
    radial-gradient(ellipse at center, rgba(150, 190, 188, 0.045), rgba(71, 119, 121, 0.022) 28%, transparent 66%);
  filter: blur(24px);
  content: "";
  opacity: 0.7;
  transform: rotate(-16deg) scaleY(0.42);
}

.atmosphere__halo {
  inset: 16% 4% -30% 24%;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(113, 216, 209, 0.065), transparent 62%);
  filter: blur(34px);
  opacity: 0.8;
}

.atmosphere__grid {
  inset: auto -20% -42% 8%;
  height: 72%;
  background-image:
    linear-gradient(rgba(113, 216, 209, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(113, 216, 209, 0.045) 1px, transparent 1px);
  background-size: 4rem 4rem;
  mask-image: linear-gradient(to bottom, transparent 5%, rgba(0, 0, 0, 0.8) 60%, transparent 100%);
  opacity: 0.42;
  transform: perspective(700px) rotateX(68deg) rotateZ(-8deg);
  transform-origin: 50% 100%;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: calc(var(--layer-boot) + 1);
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 1.25rem;
  pointer-events: none;
}

.brand,
.skip-intro {
  pointer-events: auto;
}

.brand {
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  column-gap: 0.75rem;
  outline-offset: 0.5rem;
}

.brand__mark {
  position: relative;
  width: 1.75rem;
  height: 1.75rem;
  grid-row: auto;
  border: 1px solid var(--hairline-strong);
  border-radius: 50%;
}

.brand__mark::before,
.brand__mark::after,
.brand__mark i {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.brand__mark::before {
  inset: 0.3rem;
  border: 1px solid rgba(var(--signal-rgb), 0.34);
}

.brand__mark::after {
  inset: 0.65rem;
  background: var(--signal);
  box-shadow: 0 0 0.75rem rgba(var(--signal-rgb), 0.72);
}

.brand__mark i {
  width: 0.15rem;
  height: 0.15rem;
  background: var(--signal);
}

.brand__mark i:nth-child(1) { top: 0.18rem; left: 0.73rem; }
.brand__mark i:nth-child(2) { right: 0.08rem; bottom: 0.45rem; }
.brand__mark i:nth-child(3) { bottom: 0.17rem; left: 0.38rem; }

.brand__name {
  align-self: center;
  font-size: 0.8125rem;
  font-weight: 650;
  letter-spacing: 0.18em;
  line-height: 1;
}

.brand__edition {
  align-self: start;
  margin-top: 0.3rem;
  color: var(--text-faint);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.5rem;
  letter-spacing: 0.14em;
  line-height: 1;
}

.field-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.15rem auto 0;
  color: var(--text-faint);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.5625rem;
  letter-spacing: 0.16em;
}

.field-status__signal {
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0.75rem rgba(var(--signal-rgb), 0.75);
  animation: status-pulse 2.6s var(--ease-heavy) infinite;
}

.field-status__coordinate {
  margin-left: 1rem;
  color: rgba(158, 175, 173, 0.36);
}

.skip-intro {
  min-height: 2rem;
  padding: 0 0 0.25rem;
  border: 0;
  border-bottom: 1px solid var(--hairline-strong);
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  transition:
    border-color 320ms var(--ease-heavy),
    color 320ms var(--ease-heavy),
    opacity 500ms var(--ease-heavy);
}

.skip-intro:hover,
.skip-intro:focus-visible {
  border-color: var(--signal);
  color: var(--text);
  outline: 0;
}

body.is-ready .skip-intro {
  opacity: 0;
  pointer-events: none;
}

.connection-field {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
  isolation: isolate;
}

.field-canvas {
  position: absolute;
  inset: 0;
  z-index: var(--layer-scene);
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  opacity: 0;
  touch-action: none;
  transition: opacity 1.4s var(--ease-heavy);
}

.field-canvas:active {
  cursor: grabbing;
}

body.is-ready .field-canvas {
  opacity: 1;
}

.core-identity {
  --core-x: 50vw;
  --core-y: 50vh;
  position: absolute;
  top: 0;
  left: 0;
  z-index: var(--layer-ui);
  display: grid;
  gap: 0.35rem;
  width: 12rem;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(var(--core-x), var(--core-y), 0) translate(-50%, calc(-50% + 0.45rem)) scale(0.94);
  transition:
    opacity 900ms var(--ease-heavy) 350ms,
    transform 1.1s var(--ease-spring) 350ms;
}

body.is-ready .core-identity {
  opacity: 1;
  transform: translate3d(var(--core-x), var(--core-y), 0) translate(-50%, calc(-50% + 0.45rem)) scale(1);
}

.core-identity strong {
  color: rgba(3, 12, 14, 0.88);
  font-size: clamp(0.6rem, 0.8vw, 0.75rem);
  font-weight: 750;
  letter-spacing: 0.28em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.24);
}

.core-identity small {
  color: rgba(3, 12, 14, 0.64);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: clamp(0.4rem, 0.55vw, 0.5rem);
  letter-spacing: 0.14em;
}

.orbit-language {
  position: absolute;
  inset: 0;
  z-index: var(--layer-ui);
  opacity: 0;
  pointer-events: none;
  transition: opacity 1.2s var(--ease-heavy) 700ms;
}

body.is-ready .orbit-language {
  opacity: 1;
}

.orbit-language__item {
  position: absolute;
  color: rgba(236, 244, 242, 0.66);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: clamp(0.48rem, 0.62vw, 0.62rem);
  letter-spacing: 0.22em;
  text-shadow: 0 0 1.15rem rgba(220, 240, 238, 0.26);
  white-space: nowrap;
}

.orbit-language__item--ideas { top: 18%; left: 30%; transform: rotate(-8deg); }
.orbit-language__item--connect { top: 27%; right: 20%; transform: rotate(13deg); }
.orbit-language__item--products { right: 12%; bottom: 30%; transform: rotate(-14deg); }
.orbit-language__item--people { bottom: 17%; left: 38%; transform: rotate(7deg); }
.orbit-language__item--world { top: 47%; left: 12%; transform: rotate(-4deg); }
.orbit-language__item--zh-ideas { top: 35%; left: 19%; opacity: 0.9; }
.orbit-language__item--zh-people { right: 24%; bottom: 15%; opacity: 0.9; }

.portal-status {
  position: absolute;
  top: 50%;
  right: clamp(1.5rem, 5vw, 5rem);
  z-index: var(--layer-ui);
  margin: 0;
  color: var(--text-soft);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(1rem, -50%, 0);
  transition: opacity 420ms var(--ease-heavy), transform 700ms var(--ease-spring);
}

body.is-portal .core-identity,
body.is-portal .orbit-language,
body.is-returning .core-identity,
body.is-returning .orbit-language {
  opacity: 0;
  transition-delay: 0ms;
}

body.is-portal .portal-status {
  opacity: 0.78;
  transform: translate3d(0, -50%, 0);
}

.field-navigation {
  position: absolute;
  inset: 0;
  z-index: var(--layer-node);
  pointer-events: none;
}

.field-node {
  --node-x: 50vw;
  --node-y: 50vh;
  --node-offset-x: 1.15rem;
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 0.65rem;
  min-width: 8rem;
  padding: 0.55rem 0.75rem;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(var(--node-x), var(--node-y), 0) translate(var(--node-offset-x), -50%) scale(0.92);
  transition:
    opacity 420ms var(--ease-heavy) var(--node-delay),
    background-color 320ms var(--ease-heavy);
  will-change: transform;
}

.field-node--origin { --node-x: 43vw; --node-y: 31vh; }
.field-node--identity { --node-x: 73vw; --node-y: 35vh; }
.field-node--connections { --node-x: 43vw; --node-y: 67vh; }
.field-node--builds { --node-x: 74vw; --node-y: 66vh; }
.field-node--video { --node-x: 58vw; --node-y: 19vh; }

body.is-ready .field-node {
  opacity: 0.94;
  pointer-events: auto;
  transform: translate3d(var(--node-x), var(--node-y), 0) translate(var(--node-offset-x), -50%) scale(1);
}

body.is-ready.has-active-node .field-node:not(.is-active) {
  opacity: 0.48;
}

.field-node.is-node-left {
  --node-offset-x: calc(-100% - 1.15rem);
}

.field-node::before {
  position: absolute;
  inset: -0.6rem -0.8rem;
  background: radial-gradient(ellipse, color-mix(in srgb, var(--node-accent, var(--signal)) 10%, transparent), transparent 68%);
  content: "";
  opacity: 0;
  transform: scale(0.92);
  transition:
    opacity 320ms var(--ease-heavy),
    transform 500ms var(--ease-spring);
}

.field-node__line {
  position: absolute;
  top: 50%;
  right: 100%;
  width: 1rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--node-accent, var(--signal)) 72%, transparent));
  transform-origin: right;
  transition: transform 500ms var(--ease-spring);
}

.field-node.is-node-left .field-node__line {
  right: auto;
  left: 100%;
  background: linear-gradient(90deg, color-mix(in srgb, var(--node-accent, var(--signal)) 72%, transparent), transparent);
  transform-origin: left;
}

.field-node__index {
  position: relative;
  color: var(--node-accent, var(--signal));
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.5625rem;
  letter-spacing: 0.08em;
}

.field-node__body {
  position: relative;
  display: grid;
  gap: 0.2rem;
}

.field-node strong {
  color: rgba(242, 248, 247, 0.96);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-shadow: 0 0 1rem color-mix(in srgb, var(--node-accent, #f4fffe) 24%, transparent);
}

.field-node small {
  color: var(--text-faint);
  font-size: 0.625rem;
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(-0.25rem);
  transition: opacity 280ms var(--ease-heavy), transform 420ms var(--ease-spring), color 280ms var(--ease-heavy);
}

.field-node:hover,
.field-node:focus-visible,
.field-node.is-active,
.field-node[aria-current="true"] {
  opacity: 1;
  outline: 0;
}

.field-node:hover strong,
.field-node:focus-visible strong,
.field-node.is-active strong,
.field-node[aria-current="true"] strong {
  color: var(--node-accent, #f4fffe);
  text-shadow: 0 0 1rem currentColor;
}

.field-node:hover .field-node__index,
.field-node:focus-visible .field-node__index,
.field-node.is-active .field-node__index,
.field-node[aria-current="true"] .field-node__index {
  text-shadow: 0 0 0.9rem currentColor;
}

.field-node:hover small,
.field-node:focus-visible small,
.field-node.is-active small,
.field-node[aria-current="true"] small {
  color: var(--text-soft);
  opacity: 1;
  transform: translateY(0);
}

.field-node:hover::before,
.field-node:focus-visible::before,
.field-node.is-active::before,
.field-node[aria-current="true"]::before {
  opacity: 1;
  transform: scale(1);
}

.field-node:hover .field-node__line,
.field-node:focus-visible .field-node__line,
.field-node.is-active .field-node__line {
  transform: scaleX(1.3);
}

.field-instruction {
  position: absolute;
  right: clamp(1.5rem, 4vw, 4rem);
  bottom: 2rem;
  z-index: var(--layer-ui);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text-faint);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.5rem;
  letter-spacing: 0.12em;
  opacity: 0;
  transform: translateY(0.75rem);
  transition:
    opacity 700ms var(--ease-heavy) 650ms,
    transform 700ms var(--ease-spring) 650ms;
}

body.is-ready .field-instruction {
  opacity: 1;
  transform: translateY(0);
}

body.is-portal .field-node {
  opacity: 0;
  pointer-events: none;
  transition-delay: 0ms;
}

body.is-ready.is-returning .field-node {
  opacity: 0;
  pointer-events: none;
  transition-delay: 0ms;
}

.field-instruction i {
  width: 1.5rem;
  height: 1px;
  background: var(--hairline);
}

.field-instruction__mouse {
  position: relative;
  width: 0.75rem;
  height: 1.1rem;
  border: 1px solid var(--hairline-strong);
  border-radius: 0.5rem;
}

.field-instruction__mouse::after {
  position: absolute;
  top: 0.2rem;
  left: 50%;
  width: 1px;
  height: 0.25rem;
  background: var(--signal);
  content: "";
  transform: translateX(-50%);
  animation: mouse-travel 1.8s var(--ease-heavy) infinite;
}

.field-counter {
  position: absolute;
  bottom: 1.75rem;
  left: clamp(1.5rem, 6vw, 6rem);
  z-index: var(--layer-ui);
  margin: 0;
  color: var(--text-faint);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.5625rem;
  letter-spacing: 0.14em;
  opacity: 0;
  transition: opacity 700ms var(--ease-heavy) 650ms;
}

body.is-ready .field-counter {
  opacity: 1;
}

.field-counter span {
  color: var(--signal);
}

.detail-panel {
  --panel-accent: var(--signal);
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: transparent;
  color: var(--text);
}

.detail-panel::backdrop {
  background: rgba(2, 6, 8, 0.08);
}

.detail-panel[open] {
  animation: panel-enter 620ms var(--ease-spring) both;
}

.detail-panel.is-closing {
  animation: panel-leave 320ms var(--ease-heavy) both;
}

.detail-panel__shell {
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.detail-panel__inner {
  position: relative;
  width: 100%;
  height: 100%;
}

.detail-panel__header,
.detail-panel__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.detail-panel__header {
  position: absolute;
  top: clamp(1.25rem, 3vw, 2.5rem);
  right: clamp(1.25rem, 4vw, 4rem);
  z-index: 3;
  pointer-events: auto;
}

.detail-panel__header p,
.detail-panel__footer p {
  margin: 0;
  color: var(--text-faint);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.5625rem;
  letter-spacing: 0.14em;
  line-height: 1.7;
}

.detail-panel__header p span,
.detail-panel__footer p span {
  color: var(--signal);
}

.detail-panel__header p,
.detail-panel__footer p {
  display: none;
}

.detail-panel__close {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0;
  border: 0;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  transition:
    color 320ms var(--ease-heavy),
    transform 420ms var(--ease-spring);
}

.detail-panel__close span {
  color: var(--panel-accent);
  font-size: 1rem;
}

.detail-panel__close b {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.detail-panel__close:hover,
.detail-panel__close:focus-visible {
  color: var(--text);
  outline: 0;
  transform: translateX(-0.25rem);
}

.detail-panel__media {
  position: absolute;
  top: 10vh;
  right: 3vw;
  width: min(34rem, 34vw);
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: transparent;
  opacity: 0.2;
  pointer-events: none;
  transform: perspective(60rem) rotateY(-7deg) translate3d(0, 0, 0);
  -webkit-mask-image: linear-gradient(135deg, transparent 0%, #000 18%, #000 64%, transparent 100%);
  mask-image: linear-gradient(135deg, transparent 0%, #000 18%, #000 64%, transparent 100%);
}

.detail-panel__media::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 44%, rgba(4, 10, 12, 0.86)),
    radial-gradient(circle at 76% 14%, color-mix(in srgb, var(--panel-accent) 22%, transparent), transparent 42%);
  content: "";
  pointer-events: none;
}

.detail-panel__media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: saturate(0.58) contrast(1.08) brightness(0.72);
}

.detail-panel__media.is-qr img {
  object-fit: contain;
  padding: 2rem;
  background:
    radial-gradient(circle, rgba(var(--signal-rgb), 0.1), transparent 54%),
    #071013;
  filter: saturate(0.85) brightness(0.92);
}

.detail-panel__media figcaption {
  display: none;
}

.detail-panel__content {
  position: absolute;
  top: 47%;
  right: clamp(2rem, 7vw, 8rem);
  z-index: 2;
  width: min(31rem, 36vw);
  padding: 0;
  pointer-events: auto;
  transform: translateY(-32%);
}

.detail-panel__label {
  margin: 0 0 1rem;
  color: var(--panel-accent);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.625rem;
  letter-spacing: 0.18em;
}

.detail-panel h2 {
  margin: 0;
  font-family: "Aptos", "SF Pro Display", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  font-size: clamp(2rem, 3.5vw, 4rem);
  font-weight: 520;
  line-height: 1.12;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.detail-panel__description {
  max-width: 30em;
  margin: 1.5rem 0 0;
  color: var(--text-soft);
  font-size: 0.875rem;
  line-height: 1.9;
  text-wrap: pretty;
}

.detail-panel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.detail-panel__meta li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text-faint);
  font-size: 0.6875rem;
}

.detail-panel__meta li::before {
  width: 0.25rem;
  height: 0.25rem;
  border: 1px solid var(--panel-accent);
  border-radius: 50%;
  content: "";
}

.detail-panel__footer {
  position: absolute;
  right: clamp(2rem, 7vw, 8rem);
  bottom: clamp(2rem, 8vh, 5.5rem);
  z-index: 3;
  pointer-events: auto;
}

.detail-panel__action {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.75rem;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 0.75rem;
  transition:
    background-color 320ms var(--ease-heavy),
    border-color 320ms var(--ease-heavy),
    transform 420ms var(--ease-spring);
}

.detail-panel__action i {
  width: 2.35rem;
  height: 2.35rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--panel-accent);
  color: var(--bg);
  font-size: 0.9rem;
  font-style: normal;
  transition: transform 420ms var(--ease-spring);
}

.detail-panel__action:hover,
.detail-panel__action:focus-visible {
  outline: 0;
  transform: translateY(-0.125rem);
}

.detail-panel__action:hover i,
.detail-panel__action:focus-visible i {
  transform: translate(0.125rem, -0.125rem) scale(1.05);
}

.detail-panel__action:active {
  transform: scale(0.98);
}

.boot-sequence {
  position: fixed;
  inset: 0;
  z-index: var(--layer-boot);
  display: grid;
  place-content: center;
  justify-items: center;
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--signal-rgb), 0.08), transparent 24%),
    var(--bg);
  opacity: 1;
  transition:
    opacity 900ms var(--ease-heavy),
    visibility 900ms;
}

body.is-ready .boot-sequence {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.boot-sequence__core {
  position: relative;
  width: 4.5rem;
  height: 4.5rem;
  margin-bottom: 2rem;
}

.boot-sequence__core::before,
.boot-sequence__core::after,
.boot-sequence__core i {
  position: absolute;
  border: 1px solid rgba(var(--signal-rgb), 0.3);
  border-radius: 50%;
  content: "";
}

.boot-sequence__core::before {
  inset: 0;
  animation: boot-orbit 3s var(--ease-heavy) infinite;
}

.boot-sequence__core::after {
  inset: 1rem;
  border-color: rgba(var(--signal-rgb), 0.6);
  box-shadow: 0 0 2rem rgba(var(--signal-rgb), 0.16);
  animation: boot-orbit 2.2s var(--ease-heavy) infinite reverse;
}

.boot-sequence__core i {
  width: 0.35rem;
  height: 0.35rem;
  border: 0;
  background: var(--signal);
  box-shadow: 0 0 0.8rem rgba(var(--signal-rgb), 0.7);
}

.boot-sequence__core i:nth-child(1) { top: 0; left: 50%; }
.boot-sequence__core i:nth-child(2) { right: 0.15rem; bottom: 0.8rem; }
.boot-sequence__core i:nth-child(3) { bottom: 0.1rem; left: 0.75rem; }

.boot-sequence p,
.boot-sequence small {
  color: var(--text-faint);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.16em;
}

.boot-sequence p {
  margin: 0 0 0.75rem;
  font-size: 0.5625rem;
}

.boot-sequence small {
  margin-top: 0.65rem;
  font-size: 0.5rem;
}

.boot-sequence__track {
  width: min(15rem, 62vw);
  height: 1px;
  overflow: hidden;
  background: var(--hairline);
}

.boot-sequence__track span {
  width: 100%;
  height: 100%;
  display: block;
  background: linear-gradient(90deg, rgba(var(--signal-rgb), 0.3), var(--signal));
  box-shadow: 0 0 0.75rem rgba(var(--signal-rgb), 0.5);
  transform: scaleX(0);
  transform-origin: left;
}

.no-webgl .field-canvas {
  display: none;
}

.no-webgl .atmosphere__halo {
  background:
    radial-gradient(circle at 58% 45%, rgba(var(--signal-rgb), 0.12), transparent 14%),
    radial-gradient(circle at 58% 45%, transparent 8%, rgba(var(--signal-rgb), 0.04) 8.5%, transparent 16%);
}

.no-webgl .core-identity strong,
.no-webgl .core-identity small {
  color: var(--text-soft);
}

@keyframes status-pulse {
  50% { opacity: 0.35; transform: scale(0.72); }
}

@keyframes mouse-travel {
  55% { opacity: 0; transform: translate(-50%, 0.35rem); }
  56% { opacity: 0; transform: translate(-50%, -0.1rem); }
}

@keyframes boot-orbit {
  to { transform: rotate(360deg) scale(0.92); }
}

@keyframes panel-enter {
  from { opacity: 0; transform: translate3d(2rem, 0, 0) scale(0.985); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes panel-leave {
  from { opacity: 1; transform: translate3d(0, 0, 0); }
  to { opacity: 0; transform: translate3d(1.25rem, 0, 0); }
}

@media (max-width: 760px) {
  .video-player {
    padding:
      max(10px, env(safe-area-inset-top))
      max(10px, env(safe-area-inset-right))
      max(10px, env(safe-area-inset-bottom))
      max(10px, env(safe-area-inset-left));
  }

  .video-player__media {
    width: 100%;
    max-height: calc(100dvh - 20px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  }

  .video-player__close {
    top: max(12px, env(safe-area-inset-top));
    right: max(12px, env(safe-area-inset-right));
    width: 44px;
    height: 44px;
  }

  .site-header {
    padding:
      max(1rem, env(safe-area-inset-top))
      max(1rem, env(safe-area-inset-right))
      1rem
      max(1rem, env(safe-area-inset-left));
  }

  .brand__edition,
  .field-status__coordinate {
    display: none;
  }

  .skip-intro {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    font-size: 0.625rem;
  }

  .field-status {
    margin-right: 0;
    font-size: 0.5rem;
  }

  .core-identity {
    width: 9rem;
  }

  .orbit-language__item {
    font-size: 0.42rem;
    letter-spacing: 0.16em;
  }

  .orbit-language__item--ideas { top: 14%; left: 14%; }
  .orbit-language__item--connect { top: 21%; right: 8%; }
  .orbit-language__item--products { right: 5%; bottom: 23%; }
  .orbit-language__item--people { bottom: 12%; left: 32%; }
  .orbit-language__item--world { top: 49%; left: 5%; }
  .orbit-language__item--zh-ideas { top: 29%; left: 7%; }
  .orbit-language__item--zh-people { right: 7%; bottom: 31%; }

  .portal-status {
    top: auto;
    right: 1rem;
    bottom: 1.5rem;
    transform: translate3d(0, 0.75rem, 0);
  }

  body.is-portal .portal-status {
    transform: translate3d(0, 0, 0);
  }

  .field-navigation {
    inset: 0;
    display: block;
  }

  .field-node,
  body.is-ready .field-node {
    --node-offset-x: 0.72rem;
    position: absolute;
    top: 0;
    left: 0;
    min-width: 5.8rem;
    padding: 0.42rem 0.45rem;
    border: 0;
    background: transparent;
    transform: translate3d(var(--node-x), var(--node-y), 0) translate(var(--node-offset-x), -50%) scale(0.94);
    touch-action: manipulation;
  }

  body.is-ready .field-node {
    transform: translate3d(var(--node-x), var(--node-y), 0) translate(var(--node-offset-x), -50%) scale(1);
  }

  .field-node.is-node-left {
    --node-offset-x: calc(-100% - 0.72rem);
  }

  .field-node strong {
    font-size: 0.52rem;
    letter-spacing: 0.06em;
    white-space: nowrap;
  }

  .field-node__index {
    font-size: 0.45rem;
  }

  .field-node__line {
    width: 0.65rem;
  }

  .field-instruction {
    display: none;
  }

  .field-counter {
    bottom: 1.25rem;
    left: 1rem;
  }

  .detail-panel {
    width: 100vw;
    height: 100dvh;
    max-height: none;
    margin: 0;
  }

  .detail-panel__inner {
    height: 100%;
  }

  .detail-panel__media {
    top: 10vh;
    right: -4rem;
    width: min(31rem, 105vw);
    aspect-ratio: 16 / 9;
    opacity: 0.13;
  }

  .detail-panel__content {
    top: auto;
    right: 1.25rem;
    bottom: calc(7.5rem + env(safe-area-inset-bottom));
    width: calc(100% - 2.5rem);
    padding: 0;
    transform: none;
  }

  .detail-panel h2 {
    font-size: 2.25rem;
  }

  .detail-panel__footer {
    right: 1.25rem;
    bottom: max(1.5rem, env(safe-area-inset-bottom));
  }

  .detail-panel__action {
    width: auto;
  }

  @keyframes panel-enter {
    from { opacity: 0; transform: translate3d(0, 2rem, 0) scale(0.985); }
    to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
  }

  @keyframes panel-leave {
    from { opacity: 1; transform: translate3d(0, 0, 0); }
    to { opacity: 0; transform: translate3d(0, 1.25rem, 0); }
  }
}

@media (max-width: 760px) and (orientation: landscape) {
  .core-identity {
    width: 7.5rem;
  }

  .field-node,
  body.is-ready .field-node {
    min-width: 5.2rem;
    padding-block: 0.3rem;
  }

  .detail-panel__media {
    top: 4vh;
    width: min(35rem, 62vw);
  }

  .detail-panel__content {
    bottom: max(4.5rem, calc(3.75rem + env(safe-area-inset-bottom)));
  }

  .detail-panel h2 {
    font-size: 1.85rem;
  }
}

@media (max-width: 960px) and (max-height: 520px) and (orientation: landscape) {
  .site-header {
    padding:
      max(0.65rem, env(safe-area-inset-top))
      max(1rem, env(safe-area-inset-right))
      0.65rem
      max(1rem, env(safe-area-inset-left));
  }

  .core-identity {
    width: 7.25rem;
  }

  .field-node,
  body.is-ready .field-node {
    min-width: 5.1rem;
    padding: 0.3rem 0.4rem;
    touch-action: manipulation;
  }

  .field-node strong {
    font-size: 0.48rem;
  }

  .video-player {
    padding:
      max(8px, env(safe-area-inset-top))
      max(8px, env(safe-area-inset-right))
      max(8px, env(safe-area-inset-bottom))
      max(8px, env(safe-area-inset-left));
  }

  .video-player__close {
    top: max(8px, env(safe-area-inset-top));
    right: max(8px, env(safe-area-inset-right));
  }
}

@media (max-width: 380px), (max-height: 670px) {
  .field-navigation {
    bottom: 0;
  }

  .field-counter {
    bottom: 0.85rem;
  }
}

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

  .field-canvas {
    cursor: default;
  }

  .field-instruction {
    display: none;
  }
}