:root {
  color-scheme: light;
  --bg: #161042;
  --bg-deep: #0b1535;
  --panel: rgba(24, 26, 78, 0.82);
  --panel-border: rgba(255, 255, 255, 0.16);
  --text: #ffffff;
  --muted: #d7dcff;
  --accent: #7ef1d1;
  --sun: #ffd96a;
  --pink: #ff88bd;
  --blue: #8ec8ff;
  --lavender: #b7a7ff;
  --good: #9effa5;
  --bad: #ffb4a8;
  --shadow: 0 22px 50px rgba(4, 7, 28, 0.32);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 136, 189, 0.22), transparent 30%),
    radial-gradient(circle at top right, rgba(255, 217, 106, 0.22), transparent 28%),
    radial-gradient(circle at bottom center, rgba(126, 241, 209, 0.16), transparent 35%),
    linear-gradient(180deg, #2a1678 0%, #18155a 45%, #10193d 100%);
  overflow-x: hidden;
}

.cloud,
.spark {
  position: fixed;
  pointer-events: none;
  filter: blur(18px);
}

.cloud {
  border-radius: 999px;
}

.cloud-a {
  width: 16rem;
  height: 16rem;
  top: -2rem;
  left: -3rem;
  background: rgba(142, 200, 255, 0.28);
}

.cloud-b {
  width: 18rem;
  height: 18rem;
  right: -4rem;
  top: 10rem;
  background: rgba(255, 217, 106, 0.2);
}

.spark {
  border-radius: 50%;
}

.spark-a {
  width: 7rem;
  height: 7rem;
  right: 5vw;
  top: 2rem;
  background: rgba(126, 241, 209, 0.28);
}

.spark-b {
  width: 5rem;
  height: 5rem;
  left: 12vw;
  bottom: 6rem;
  background: rgba(255, 136, 189, 0.24);
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 1rem));
  margin: 0 auto;
  padding: 0.9rem 0 2.6rem;
  display: grid;
  gap: 0.85rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 30px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  padding: 1rem;
}

.hidden {
  display: none !important;
}

.splash {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    linear-gradient(135deg, rgba(255, 136, 189, 0.18), rgba(126, 241, 209, 0.12));
}

.brand-stack,
.hero-actions,
.action-row,
.splash-actions,
.map-head,
.game-toolbar {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.brand-mascot {
  width: 5.2rem;
  height: 5.2rem;
  border-radius: 28px;
  display: grid;
  place-items: center;
  font-size: 2.35rem;
  background: linear-gradient(145deg, rgba(255, 217, 106, 0.96), rgba(255, 136, 189, 0.82));
  box-shadow: inset 0 2px 8px rgba(255, 255, 255, 0.25), 0 10px 20px rgba(0, 0, 0, 0.18);
}

.brand-tag,
.eyebrow,
.match-title {
  margin: 0;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--accent);
}

.lede {
  margin: 0;
  line-height: 1.6;
  color: var(--muted);
}

.brand-stack h1,
.map-head h2,
.result h2 {
  margin: 0;
}

.brand-stack h1 {
  font-size: clamp(2rem, 6vw, 3.3rem);
  line-height: 0.94;
}

.mini-icons {
  display: flex;
  gap: 0.45rem;
  margin-top: 0.45rem;
}

.mini-icons span {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.status-strip,
.score-pill,
.type-chip,
.mistake-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.65rem;
  padding: 0.58rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--muted);
}

.mistake-chip {
  min-width: 5.8rem;
  font-size: 1.15rem;
}

.score-pill {
  min-width: 4.8rem;
}

button {
  border: 0;
  font: inherit;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

button:hover {
  transform: translateY(-2px);
}

button:disabled {
  opacity: 0.56;
  cursor: not-allowed;
  transform: none;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.choice-btn,
.match-card {
  border-radius: 20px;
  padding: 0.88rem 1rem;
}

.primary-btn {
  color: #112438;
  background: linear-gradient(135deg, var(--sun), var(--accent));
  box-shadow: 0 16px 28px rgba(255, 217, 106, 0.22);
}

.secondary-btn {
  background: linear-gradient(135deg, rgba(142, 200, 255, 0.28), rgba(183, 167, 255, 0.28));
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ghost-btn {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.icon-only,
.icon-action,
.speak-btn {
  min-width: 3.35rem;
  min-height: 3.35rem;
  padding: 0.7rem;
  font-size: 1.1rem;
}

.splash-play {
  min-width: 10rem;
  font-weight: 700;
}

.map {
  display: grid;
  gap: 0.9rem;
}

.map-head {
  justify-content: space-between;
}

.level-grid {
  display: grid;
  gap: 0.9rem;
}

.level-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    linear-gradient(135deg, rgba(142, 200, 255, 0.14), rgba(255, 136, 189, 0.16));
}

.level-card.locked {
  opacity: 0.52;
}

.level-card::after {
  content: "";
  position: absolute;
  inset: auto -1.6rem -2rem auto;
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.level-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.8rem;
}

.level-badge {
  width: 4.1rem;
  height: 4.1rem;
  border-radius: 24px;
  display: grid;
  place-items: center;
  font-size: 1.9rem;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 2px 7px rgba(255, 255, 255, 0.22);
}

.level-count {
  min-width: 2.2rem;
  padding: 0.3rem 0.55rem;
  text-align: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.level-text h3,
.level-text p,
.level-mini {
  margin: 0;
}

.level-text h3 {
  font-size: 1.7rem;
}

.level-text p,
.level-mini,
.prompt-copy,
.result-copy,
.voice-log,
.feedback-box,
.hint-box,
.answer-box,
.status-strip,
.speak-copy {
  color: var(--muted);
}

.level-mini {
  font-size: 0.92rem;
}

.level-play {
  width: 100%;
  justify-self: stretch;
  font-size: 1rem;
}

.game {
  display: grid;
  gap: 1rem;
}

.game-toolbar {
  justify-content: space-between;
}

.progress-dots {
  display: flex;
  gap: 0.45rem;
  flex: 1;
  justify-content: center;
}

.progress-dot {
  width: 0.88rem;
  height: 0.88rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  border: 2px solid rgba(255, 255, 255, 0.08);
}

.progress-dot.active {
  background: var(--sun);
  border-color: rgba(255, 217, 106, 0.55);
}

.progress-dot.done {
  background: var(--accent);
  border-color: rgba(126, 241, 209, 0.55);
}

.question-card {
  display: grid;
  gap: 0.95rem;
}

.action-row {
  justify-content: center;
}

.type-chip {
  justify-self: center;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-weight: 700;
}

.prompt-copy {
  margin: 0;
  text-align: center;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.target-card {
  position: relative;
  overflow: hidden;
  border-radius: 32px;
  min-height: 270px;
  padding: 1.2rem;
  display: grid;
  place-items: center;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04)),
    linear-gradient(135deg, rgba(255, 217, 106, 0.18), rgba(142, 200, 255, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.target-card::before,
.target-card::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.target-card::before {
  width: 8rem;
  height: 8rem;
  left: -1.8rem;
  top: -2rem;
}

.target-card::after {
  width: 9rem;
  height: 9rem;
  right: -2rem;
  bottom: -2rem;
}

.target-stack {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.55rem;
  justify-items: center;
}

.target-emoji {
  width: 6.5rem;
  height: 6.5rem;
  display: grid;
  place-items: center;
  border-radius: 30px;
  font-size: 3.2rem;
  background: rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 2px 8px rgba(255, 255, 255, 0.22);
}

.target-hanzi {
  font-size: clamp(1.5rem, 4.2vw, 2rem);
  font-weight: 700;
}

.target-pinyin {
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.choice-grid {
  display: grid;
  gap: 0.8rem;
}

.choice-btn,
.match-card {
  text-align: center;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.choice-btn {
  min-height: 5.4rem;
  font-size: clamp(1.3rem, 4.6vw, 2rem);
  font-weight: 700;
}

.choice-btn:nth-child(4n + 1) {
  background: linear-gradient(135deg, rgba(255, 136, 189, 0.24), rgba(255, 255, 255, 0.08));
}

.choice-btn:nth-child(4n + 2) {
  background: linear-gradient(135deg, rgba(142, 200, 255, 0.24), rgba(255, 255, 255, 0.08));
}

.choice-btn:nth-child(4n + 3) {
  background: linear-gradient(135deg, rgba(255, 217, 106, 0.22), rgba(255, 255, 255, 0.08));
}

.choice-btn:nth-child(4n + 4) {
  background: linear-gradient(135deg, rgba(183, 167, 255, 0.24), rgba(255, 255, 255, 0.08));
}

.choice-btn.correct,
.match-card.correct {
  background: rgba(158, 255, 165, 0.18);
  border-color: rgba(158, 255, 165, 0.8);
}

.choice-btn.wrong,
.match-card.wrong {
  background: rgba(255, 180, 168, 0.16);
  border-color: rgba(255, 180, 168, 0.8);
}

.dynamic-area,
.match-column,
.speak-box {
  display: grid;
  gap: 0.85rem;
}

.hint-box,
.answer-box,
.feedback-box,
.voice-log {
  border-radius: 22px;
  padding: 0.82rem 0.95rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.feedback-box {
  font-weight: 700;
}

.feedback-box.good {
  color: var(--good);
}

.feedback-box.bad {
  color: var(--bad);
}

.match-board {
  display: grid;
  gap: 0.9rem;
}

.match-card {
  min-height: 5rem;
  display: grid;
  gap: 0.3rem;
  place-items: center;
  padding: 0.9rem;
}

.match-card.active {
  border-color: rgba(126, 241, 209, 0.88);
  box-shadow: inset 0 0 0 1px rgba(126, 241, 209, 0.35);
}

.match-card.matched {
  opacity: 0.55;
}

.match-emoji {
  font-size: 1.8rem;
}

.match-main {
  font-size: 1.25rem;
  font-weight: 700;
}

.match-sub {
  font-size: 0.9rem;
  color: var(--muted);
}

.speak-target {
  font-size: clamp(2.6rem, 10vw, 4rem);
  text-align: center;
}

.speak-copy,
.result-copy {
  margin: 0;
  text-align: center;
}

.result {
  display: grid;
  gap: 0.9rem;
  justify-items: center;
  text-align: center;
}

.result-badge {
  width: 5.8rem;
  height: 5.8rem;
  display: grid;
  place-items: center;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255, 217, 106, 0.25), rgba(126, 241, 209, 0.2));
  font-size: 2rem;
}

@media (min-width: 860px) {
  .level-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

.choice-grid,
.match-board {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
}

.answer-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.judge-btn {
  min-height: 4.4rem;
  border-radius: 24px;
  font-size: 2rem;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.judge-good {
  background: linear-gradient(135deg, rgba(126, 241, 209, 0.28), rgba(255, 217, 106, 0.22));
}

.judge-bad {
  background: linear-gradient(135deg, rgba(255, 180, 168, 0.2), rgba(255, 136, 189, 0.18));
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 0.7rem, 1120px);
    padding-top: 0.6rem;
  }

  .panel {
    border-radius: 24px;
    padding: 0.9rem;
  }

  .brand-mascot {
    width: 4.3rem;
    height: 4.3rem;
    font-size: 2rem;
  }

  .target-card {
    min-height: 235px;
  }

  .splash-play,
  .hero-actions > button,
  .action-row > button {
    width: 100%;
  }
}