:root {
  --paper: #f4efe4;
  --paper-deep: #e8dfcf;
  --ink: #1d211d;
  --muted: #6c6d63;
  --coral: #f05c42;
  --coral-edge: #cf4732;
  --moss: #5f8456;
  --acid: #dff238;
  --yellow: #f6c845;
  --blue: #4286d8;
  --ease: cubic-bezier(.22, 1, .36, 1);
  font-family: Futura, "Avenir Next", Avenir, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
html { min-width: 1180px; background: var(--paper); }
body { min-height: 100vh; margin: 0; overflow-x: hidden; background: var(--paper); }
button, a { font: inherit; }
button { color: inherit; }

body::before {
  content: "";
  position: fixed;
  z-index: 100;
  inset: 0;
  opacity: .035;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.64' numOctaves='3' seed='12'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.play-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%) translateY(calc(var(--enter, 0) * -1.2rem));
  opacity: calc(1 - var(--enter, 0) * 1.35);
  z-index: 10;
  width: calc(100% - clamp(4rem, 8vw, 9rem));
  min-height: 5.6rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 2rem;
  align-items: center;
  border-bottom: 1px solid rgba(29, 33, 29, .13);
}

.play-brand, .play-exit { color: inherit; text-decoration: none; }
.play-brand { font-size: 1.4rem; font-weight: 600; letter-spacing: -.05em; }
.play-brand span { color: var(--coral); }
.play-header p { margin: 0; color: var(--muted); font-size: .78rem; letter-spacing: .035em; }
.play-exit { display: inline-flex; gap: .6rem; align-items: center; font-size: .85rem; }
.play-exit span { color: var(--coral); transition: transform 240ms var(--ease); }
.play-exit:hover span, .play-exit:focus-visible span { transform: translate(.18rem, -.18rem); }

.play-room {
  position: relative;
  width: 100%;
  height: 220vh;
  margin: 0;
  padding: 0;
}

.play-stage {
  position: sticky;
  top: 0;
  width: calc(100% - clamp(4rem, 8vw, 9rem));
  height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(22rem, .72fr) minmax(50rem, 1.58fr);
  gap: clamp(3rem, 6vw, 8rem);
  align-items: start;
  padding: clamp(7rem, 12vh, 9rem) 0 clamp(3rem, 5vh, 5rem);
  overflow: hidden;
}

/* 当滚动到底部时，游戏机完全展开 */
body.is-immersive .play-stage {
  grid-template-columns: 0fr 1fr;
  gap: 0;
}

body.is-immersive .play-library {
  opacity: 0;
  pointer-events: none;
  width: 0;
  overflow: hidden;
}

body.is-immersive .arcade {
  width: 100%;
  max-width: 100%;
  justify-self: stretch;
  transform: none;
}

.play-stage::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: 17%;
  right: -13%;
  top: 9%;
  height: 57%;
  border: 1px solid rgba(29, 33, 29, .11);
  border-radius: 50%;
  transform: rotate(-7deg);
}

.play-library {
  align-self: stretch;
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  opacity: calc(1 - var(--enter, 0) * 1.28);
  transform: translateX(calc(var(--enter, 0) * -8vw));
  transition: opacity 80ms linear;
  will-change: transform, opacity;
}
.play-library h1 {
  margin: 0;
  font-size: clamp(6.8rem, 10.2vw, 11rem);
  font-weight: 500;
  line-height: .73;
  letter-spacing: -.085em;
}
.play-intro { max-width: 23rem; margin: clamp(2.6rem, 5vh, 4rem) 0 0; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }

.game-list { margin-top: clamp(2rem, 4vh, 3.4rem); border-top: 1px solid rgba(29, 33, 29, .14); }
.game-choice {
  position: relative;
  width: 100%;
  min-height: 5.2rem;
  display: grid;
  grid-template-columns: 1rem 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: .9rem 0;
  border: 0;
  border-bottom: 1px solid rgba(29, 33, 29, .14);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.game-choice > i { width: .72rem; aspect-ratio: 1; border-radius: 50%; background: var(--game-accent, var(--coral)); transition: transform 300ms var(--ease); }
.game-choice span { display: grid; gap: .22rem; }
.game-choice strong { font-size: 1.15rem; font-weight: 500; letter-spacing: -.025em; }
.game-choice small { color: var(--muted); font-size: .72rem; }
.game-choice b { color: var(--coral); font-size: .75rem; font-weight: 500; opacity: 0; transform: translateX(-.45rem); transition: opacity 260ms ease, transform 320ms var(--ease); }
.game-choice:hover > i, .game-choice:focus-visible > i, .game-choice[aria-current="true"] > i { transform: scale(1.45); }
.game-choice:hover b, .game-choice:focus-visible b, .game-choice[aria-current="true"] b { opacity: 1; transform: none; }
.game-choice:focus-visible { outline: 2px solid var(--coral); outline-offset: .25rem; }
.library-note { max-width: 22rem; margin: 1.4rem 0 0; color: var(--muted); font-size: .75rem; line-height: 1.6; }

.arcade {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 64rem;
  justify-self: end;
  filter: saturate(calc(1.08 + var(--enter, 0) * .06));
  transform-origin: right center;
  transform: translate(calc(var(--enter, 0) * -1.5vw), calc(var(--enter, 0) * -1.5vh)) scale(calc(1 + var(--enter, 0) * .42));
  will-change: transform;
}
.arcade__body {
  position: relative;
  padding: clamp(1.6rem, 2.8vw, 2.6rem);
  border: 1px solid rgba(75, 61, 44, .08);
  border-radius: 4.8rem 5.5rem 4.2rem 5.1rem / 4.2rem 4.8rem 4.6rem 5.2rem;
  background: #e9dfce;
  box-shadow: 0 .28rem 0 #d3c6b3, 0 .7rem 1.1rem rgba(69, 54, 38, .08);
}
.arcade__body::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: .12;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='90' height='90'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='3' seed='7'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.arcade__topline { position: absolute; z-index: 2; right: 3.8rem; top: 1.1rem; display: flex; gap: .45rem; }
.arcade__topline i { width: .65rem; aspect-ratio: 1; border-radius: 50%; background: var(--coral); }
.arcade__topline i:nth-child(2) { background: var(--acid); }
.arcade__topline i:nth-child(3) { background: var(--yellow); }

.arcade__screen-shell {
  position: relative;
  z-index: 1;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: .72rem solid #252a24;
  border-radius: 2.7rem 3.2rem 2.45rem 3rem / 2.8rem 2.55rem 3rem 2.65rem;
  background: #20251f;
  box-shadow: inset 0 0 0 1px rgba(244, 239, 228, .16), 0 .18rem 0 rgba(255, 255, 255, .34);
}
.arcade__screen { width: 100%; height: 100%; display: block; border: 0; background: #20251f; opacity: 0; transition: opacity 360ms ease; }
.arcade__screen.is-ready { opacity: 1; }
.arcade__loading { position: absolute; z-index: 2; inset: 0; display: grid; place-content: center; gap: 1rem; justify-items: center; color: #f4efe4; background: #20251f; transition: opacity 260ms ease, visibility 260ms ease; }
.arcade__loading[hidden] { opacity: 0; visibility: hidden; }
.arcade__loading span { width: 5rem; height: .45rem; overflow: hidden; border-radius: 999px; background: rgba(244, 239, 228, .14); }
.arcade__loading span::after { content: ""; display: block; width: 46%; height: 100%; border-radius: inherit; background: var(--acid); animation: load-game 900ms var(--ease) infinite alternate; }
.arcade__loading p { margin: 0; color: rgba(244, 239, 228, .62); font-size: .75rem; }

.arcade__console { position: relative; z-index: 2; min-height: 8.6rem; display: grid; grid-template-columns: minmax(12rem, 1fr) auto; gap: 1.2rem 2rem; align-items: center; padding: 1.5rem .7rem .1rem; }
.game-now { display: grid; gap: .25rem; }
.game-now strong { font-size: 1.4rem; font-weight: 500; letter-spacing: -.04em; }
.game-now span { color: var(--moss); font-size: .66rem; letter-spacing: .08em; }
.game-score { display: flex; gap: .8rem; align-items: baseline; }
.game-score span { color: var(--muted); font-size: .7rem; }
.game-score strong { min-width: 3ch; font-size: 2.25rem; font-weight: 500; text-align: right; letter-spacing: -.06em; }
.arcade__controls { grid-column: 1 / -1; display: flex; gap: .7rem; justify-content: flex-end; }

.clay-key {
  --key-face: var(--paper);
  --key-edge: #cfc4b2;
  position: relative;
  min-width: 5.4rem;
  min-height: 2.8rem;
  padding: .72rem 1.15rem;
  border: 0;
  border-radius: 1.25rem 1.4rem 1.15rem 1.35rem / 1.2rem 1.3rem 1.35rem 1.15rem;
  background: var(--key-face);
  box-shadow: 0 .26rem 0 var(--key-edge), 0 .42rem .5rem rgba(61, 47, 32, .09);
  cursor: pointer;
  transition: transform 130ms ease, box-shadow 130ms ease, filter 180ms ease;
}
.clay-key--pause { --key-face: var(--acid); --key-edge: #a9b72b; }
.clay-key--restart { --key-face: var(--coral); --key-edge: var(--coral-edge); color: #241d19; }
.clay-key:hover, .clay-key:focus-visible { filter: saturate(1.1) brightness(1.015); }
.clay-key:focus-visible { outline: 2px solid var(--ink); outline-offset: .3rem; }
.clay-key:active, .clay-key.is-pressed { transform: translateY(.24rem); box-shadow: 0 .03rem 0 var(--key-edge), 0 .1rem .18rem rgba(61, 47, 32, .08); }
.clay-key[aria-pressed="true"] { --key-face: var(--moss); --key-edge: #476940; color: var(--paper); }

.arcade__feet { display: flex; justify-content: space-between; padding: 0 5rem; }
.arcade__feet i { width: 8.5rem; height: 1rem; border-radius: 0 0 1rem 1rem; background: #cfc2ae; }

.scroll-cue {
  position: absolute;
  z-index: 4;
  right: 0;
  bottom: 1.2rem;
  display: flex;
  gap: .7rem;
  align-items: center;
  opacity: calc(1 - var(--enter, 0) * 3);
  color: var(--muted);
  font-size: .66rem;
  letter-spacing: .09em;
}
.scroll-cue span { width: 2.6rem; height: 1px; overflow: hidden; background: rgba(29, 33, 29, .2); }
.scroll-cue span::after { content: ""; display: block; width: 45%; height: 100%; background: var(--coral); animation: enter-line 1.4s var(--ease) infinite; }
.scroll-cue p { margin: 0; }

.game-dock {
  position: fixed;
  z-index: 8;
  left: 1.1rem;
  top: 50%;
  width: 4.4rem;
  display: grid;
  gap: 1rem;
  justify-items: center;
  padding: 1rem .55rem .75rem;
  border-radius: 2.2rem;
  background: rgba(244, 239, 228, .94);
  box-shadow: 0 .2rem 0 rgba(140, 124, 99, .24), 0 .5rem 1.2rem rgba(69, 54, 38, .08);
  opacity: clamp(0, calc((var(--enter, 0) - .55) * 3.3), 1);
  pointer-events: none;
  transform: translate(-1rem, -45%) scale(.94);
  transition: opacity 180ms linear;
}
body.is-immersive .game-dock { pointer-events: auto; transform: translate(0, -50%) scale(1); transition: transform 420ms var(--ease), opacity 180ms linear; }
.game-dock > p { margin: 0; font-size: .53rem; line-height: 1.1; letter-spacing: .09em; text-align: center; }
.game-dock nav { display: grid; gap: .65rem; }
.dock-game, .dock-add {
  width: 3.15rem;
  aspect-ratio: 1;
  padding: 0;
  border: 0;
  border-radius: 1.15rem;
  background: var(--paper-deep);
  box-shadow: 0 .18rem 0 #cfc2ae;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, filter 180ms ease;
}
.dock-game { position: relative; overflow: hidden; }
.dock-game img { width: 100%; height: 100%; display: block; object-fit: cover; }
.dock-game span { position: absolute; inset: auto .25rem .2rem; overflow: hidden; color: var(--paper); font-size: .48rem; text-overflow: ellipsis; white-space: nowrap; text-shadow: 0 1px 3px rgba(0,0,0,.5); }
.dock-game[aria-current="true"] { outline: .16rem solid var(--coral); outline-offset: .15rem; }
.dock-game:hover, .dock-add:hover { filter: saturate(1.12); }
.dock-game:active, .dock-add:active { transform: translateY(.16rem); box-shadow: 0 .02rem 0 #cfc2ae; }
.dock-game:focus-visible, .dock-add:focus-visible { outline: 2px solid var(--ink); outline-offset: .22rem; }
.dock-add { display: grid; place-content: center; gap: .02rem; color: var(--ink); background: var(--acid); }
.dock-add span { font-size: 1.25rem; line-height: 1; }
.dock-add b { font-size: .48rem; font-weight: 500; }

.studio-guide {
  position: fixed;
  z-index: 20;
  left: 6.2rem;
  top: 50%;
  width: 25rem;
  padding: 2.2rem;
  border-radius: 2.6rem 3rem 2.4rem 2.8rem;
  background: #f0e7d8;
  box-shadow: 0 .25rem 0 #d2c4af, 0 .8rem 2rem rgba(69, 54, 38, .12);
  opacity: 0;
  pointer-events: none;
  transform: translate(-1.2rem, -47%) scale(.97);
  transition: opacity 220ms ease, transform 360ms var(--ease);
}
.studio-guide[aria-hidden="false"] { opacity: 1; pointer-events: auto; transform: translate(0, -50%) scale(1); }
.studio-guide > p { margin: 0 0 1rem; color: var(--coral); font-size: .65rem; letter-spacing: .12em; }
.studio-guide h2 { max-width: 17rem; margin: 0 0 1.8rem; font-size: 2.25rem; font-weight: 500; line-height: 1.02; letter-spacing: -.055em; }
.studio-guide code { display: block; overflow: hidden; padding: 1rem; border-radius: 1.1rem; color: #edf5df; background: #273027; font: .78rem/1.4 "SFMono-Regular", Consolas, monospace; text-overflow: ellipsis; white-space: nowrap; }
.studio-guide > button:not(.studio-guide__close) { margin-top: .85rem; padding: .7rem 1rem; border: 0; border-radius: 1rem; background: var(--coral); box-shadow: 0 .2rem 0 var(--coral-edge); cursor: pointer; }
.studio-guide > button:not(.studio-guide__close):active { transform: translateY(.16rem); box-shadow: 0 .04rem 0 var(--coral-edge); }
.studio-guide small { display: block; margin-top: 1.2rem; color: var(--muted); font-size: .72rem; line-height: 1.55; }
.studio-guide__close { position: absolute; top: 1.1rem; right: 1.2rem; border: 0; background: transparent; font-size: 1.5rem; cursor: pointer; }

@keyframes load-game { from { transform: translateX(-110%); } to { transform: translateX(220%); } }
@keyframes enter-line { from { transform: translateX(-110%); } to { transform: translateX(240%); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .arcade, .play-library, .play-header { will-change: auto; }
}