/* 注音星球大冒險：深夜藍紫宇宙、暖黃與珊瑚橘的注音探險主題。 */

@font-face {
  font-family: "BpmfSymbols";
  src: url("../assets/fonts/BpmfSymbols-Bold.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #0b0820;
  --bg-2: #1b1b3a;
  --ink: #f7f1ff;
  --muted: #b9b0dd;
  --accent: #ffb703;
  --accent-2: #ff6b6b;
  --accent-3: #ffd166;
  --good: #3ddc97;
  --bad: #ff5d73;
  --card: #1b1440;
  --line: #f5edff;
  --line-soft: rgba(245, 237, 255, 0.18);
  --shadow: 0 8px 0 rgba(5, 3, 20, 0.62), 0 24px 60px rgba(3, 2, 15, 0.62);
  --shadow-sm: 0 5px 0 rgba(5, 3, 20, 0.58);
  --radius: 28px;
  --radius-sm: 18px;
  --font-zhuyin: "BpmfSymbols", "BpmfHuninn", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "Heiti TC", sans-serif;
  --glow-warm: 0 0 26px rgba(255, 183, 3, 0.38);
  --glow-coral: 0 0 26px rgba(255, 107, 107, 0.3);
}

html {
  background: #0b0820;
}

body {
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 12% 6%, rgba(255, 183, 3, 0.16), transparent 28%),
    radial-gradient(circle at 88% 10%, rgba(255, 107, 107, 0.14), transparent 30%),
    radial-gradient(circle at 50% 108%, rgba(109, 93, 252, 0.32), transparent 48%),
    linear-gradient(180deg, #0b0820 0%, #141033 48%, #1b1b3a 100%);
  background-size: auto;
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 8% 14%, rgba(255, 255, 255, 0.9) 0 1.3px, transparent 1.8px),
    radial-gradient(circle at 18% 32%, rgba(255, 209, 102, 0.9) 0 1.6px, transparent 2.1px),
    radial-gradient(circle at 27% 9%, rgba(255, 255, 255, 0.7) 0 1.1px, transparent 1.6px),
    radial-gradient(circle at 36% 24%, rgba(255, 255, 255, 0.8) 0 1.4px, transparent 1.9px),
    radial-gradient(circle at 44% 7%, rgba(255, 209, 102, 0.8) 0 1.2px, transparent 1.7px),
    radial-gradient(circle at 53% 18%, rgba(255, 255, 255, 0.7) 0 1.5px, transparent 2px),
    radial-gradient(circle at 62% 5%, rgba(255, 255, 255, 0.9) 0 1.1px, transparent 1.6px),
    radial-gradient(circle at 71% 27%, rgba(255, 209, 102, 0.75) 0 1.5px, transparent 2px),
    radial-gradient(circle at 82% 11%, rgba(255, 255, 255, 0.85) 0 1.2px, transparent 1.7px),
    radial-gradient(circle at 92% 31%, rgba(255, 255, 255, 0.7) 0 1.6px, transparent 2.1px),
    radial-gradient(circle at 14% 56%, rgba(255, 255, 255, 0.7) 0 1.2px, transparent 1.7px),
    radial-gradient(circle at 24% 72%, rgba(255, 209, 102, 0.75) 0 1.4px, transparent 1.9px),
    radial-gradient(circle at 33% 48%, rgba(255, 255, 255, 0.8) 0 1.1px, transparent 1.6px),
    radial-gradient(circle at 46% 64%, rgba(255, 255, 255, 0.7) 0 1.6px, transparent 2.1px),
    radial-gradient(circle at 58% 41%, rgba(255, 209, 102, 0.8) 0 1.2px, transparent 1.7px),
    radial-gradient(circle at 67% 68%, rgba(255, 255, 255, 0.8) 0 1.4px, transparent 1.9px),
    radial-gradient(circle at 78% 52%, rgba(255, 255, 255, 0.7) 0 1.1px, transparent 1.6px),
    radial-gradient(circle at 88% 74%, rgba(255, 209, 102, 0.7) 0 1.5px, transparent 2px),
    radial-gradient(circle at 7% 86%, rgba(255, 255, 255, 0.7) 0 1.3px, transparent 1.8px),
    radial-gradient(circle at 20% 94%, rgba(255, 209, 102, 0.7) 0 1.2px, transparent 1.7px),
    radial-gradient(circle at 39% 87%, rgba(255, 255, 255, 0.8) 0 1.5px, transparent 2px),
    radial-gradient(circle at 55% 93%, rgba(255, 255, 255, 0.65) 0 1.1px, transparent 1.6px),
    radial-gradient(circle at 74% 89%, rgba(255, 209, 102, 0.75) 0 1.4px, transparent 1.9px),
    radial-gradient(circle at 94% 95%, rgba(255, 255, 255, 0.75) 0 1.2px, transparent 1.7px);
  opacity: 0.72;
  animation: star-twinkle 8s ease-in-out infinite alternate;
}

html::after {
  content: "";
  position: fixed;
  left: 50%;
  top: 38%;
  z-index: 0;
  width: min(128vw, 1500px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 209, 102, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 90px rgba(255, 183, 3, 0.07), inset 0 0 90px rgba(109, 93, 252, 0.08);
  transform: translate(-50%, -50%) rotate(-18deg) scaleY(0.42);
  pointer-events: none;
}

main {
  position: relative;
  z-index: 1;
}

@keyframes star-twinkle {
  from { opacity: 0.55; }
  to { opacity: 0.88; }
}

/* ---------- 導覽列 ---------- */
.topbar {
  background: rgba(11, 8, 32, 0.84);
  border-bottom: 1px solid rgba(245, 237, 255, 0.14);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px);
}

.brand {
  color: #fff4d6;
}

.brand-dot {
  position: relative;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.82);
  background: radial-gradient(circle at 34% 28%, #fff7d6 0 18%, #ffd166 34%, #ffb703 62%, #ff6b6b 100%);
  box-shadow: 0 0 16px rgba(255, 183, 3, 0.68);
}

.brand-dot::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 30px;
  height: 11px;
  border: 1px solid rgba(255, 209, 102, 0.75);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-22deg);
}

.brand-name {
  color: #fff7df;
  text-shadow: 0 0 18px rgba(255, 183, 3, 0.22);
}

.icon-btn {
  background: linear-gradient(160deg, rgba(48, 36, 96, 0.96), rgba(27, 20, 64, 0.98));
  border-color: rgba(245, 237, 255, 0.48);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.icon-btn:hover {
  background: linear-gradient(160deg, #3d2e7b, #2a205e);
  border-color: var(--accent-3);
}

.icon-btn:active {
  box-shadow: none;
}

.icon-btn svg {
  fill: #f7f1ff;
}

.icon-btn-zhuyin {
  color: var(--accent-3);
  font-size: 22px;
}

.icon-btn-zhuyin[aria-pressed="false"] {
  color: #8f84b6;
  background: rgba(20, 15, 48, 0.9);
}

/* ---------- 首頁 ---------- */
.screen-home {
  position: relative;
}

.hero {
  position: relative;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0 -3%;
  z-index: -1;
  border-radius: 48px;
  background: url("../assets/img/hero.webp") center / cover no-repeat;
  opacity: 0.24;
  filter: saturate(1.15);
  mask-image: linear-gradient(90deg, transparent 0%, #000 18%, #000 82%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 18%, #000 82%, transparent 100%);
}

.eyebrow {
  color: var(--accent-3);
  text-shadow: 0 0 18px rgba(255, 209, 102, 0.35);
}

.hero-title {
  color: #fff8e3;
  text-shadow: 0 0 30px rgba(255, 183, 3, 0.2), 0 4px 0 rgba(4, 2, 16, 0.4);
}

.hero-desc {
  color: #d8cef7;
}

.hero-meta {
  color: var(--muted);
}

.hero-blob {
  inset: 10% 3%;
  border-color: rgba(245, 237, 255, 0.5);
  background:
    radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.9) 0 4%, transparent 30%),
    radial-gradient(circle at 64% 68%, rgba(255, 107, 107, 0.72) 0 12%, transparent 40%),
    radial-gradient(circle at 38% 42%, #ffd166 0 12%, #ff9f43 42%, #c94b6b 84%);
  box-shadow: 0 0 60px rgba(255, 183, 3, 0.35), inset -18px -22px 50px rgba(74, 20, 62, 0.45);
  transform: rotate(-7deg);
}

.hero-blob::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 116%;
  height: 78%;
  border: 2px solid rgba(255, 209, 102, 0.55);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-17deg) scaleY(0.34);
  box-shadow: 0 0 26px rgba(255, 183, 3, 0.22);
}

.hero-art::before,
.hero-art::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 0;
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-16deg) scaleY(0.42);
  pointer-events: none;
}

.hero-art::before {
  width: 92%;
  height: 100%;
  border: 1px dashed rgba(245, 237, 255, 0.22);
}

.hero-art::after {
  width: 70%;
  height: 92%;
  border: 1px solid rgba(255, 209, 102, 0.18);
}

.hero-art img {
  filter: drop-shadow(0 22px 24px rgba(3, 2, 15, 0.55)) drop-shadow(0 0 26px rgba(255, 183, 3, 0.18));
}

.hero-sticker {
  border-color: rgba(245, 237, 255, 0.75);
  background: linear-gradient(135deg, #ffe29a, #ffb703 58%, #ff8a5c);
  color: #241243;
  box-shadow: 0 6px 0 rgba(5, 3, 20, 0.5), 0 0 24px rgba(255, 183, 3, 0.25);
  transform: rotate(7deg);
}

.card {
  background:
    radial-gradient(circle at 90% 4%, rgba(255, 183, 3, 0.1), transparent 32%),
    linear-gradient(160deg, rgba(36, 27, 78, 0.96), rgba(20, 15, 49, 0.98));
  border-color: rgba(245, 237, 255, 0.42);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.howto {
  position: relative;
  overflow: hidden;
}

.howto::after {
  content: "";
  position: absolute;
  right: -46px;
  top: -58px;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(255, 209, 102, 0.22);
  border-radius: 50%;
  box-shadow: 0 0 40px rgba(255, 183, 3, 0.1);
  pointer-events: none;
}

.howto-list li {
  color: #eee6ff;
}

.howto-tip {
  color: var(--muted);
}

/* ---------- 按鈕 ---------- */
.btn {
  border-color: rgba(245, 237, 255, 0.55);
  color: var(--ink);
  box-shadow: 0 5px 0 rgba(5, 3, 20, 0.62), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn:hover {
  box-shadow: 0 7px 0 rgba(5, 3, 20, 0.62), 0 0 22px rgba(255, 183, 3, 0.16);
}

.btn-primary {
  background: linear-gradient(135deg, #ffe29a, #ffb703 54%, #ff9f43);
  border-color: rgba(255, 248, 227, 0.9);
  color: #241243;
  box-shadow: 0 5px 0 #7a4b00, 0 0 30px rgba(255, 183, 3, 0.32);
}

.btn-primary:hover {
  box-shadow: 0 7px 0 #7a4b00, 0 0 38px rgba(255, 183, 3, 0.45);
}

.btn-soft {
  background: linear-gradient(150deg, #3b2a6f, #2a1f57);
  border-color: rgba(255, 209, 102, 0.45);
  color: #ffe9b0;
}

.btn-ghost {
  background: linear-gradient(160deg, rgba(42, 32, 84, 0.92), rgba(24, 18, 56, 0.95));
  color: #f7f1ff;
}

.btn-danger {
  background: linear-gradient(150deg, #5a1c32, #3b1427);
  border-color: rgba(255, 93, 115, 0.6);
  color: #ffe3e8;
}

.btn-link {
  color: var(--muted);
}

.btn-link:hover {
  color: var(--accent-3);
}

/* ---------- 關卡選單 ---------- */
.level-card {
  background:
    radial-gradient(circle at 86% 10%, rgba(255, 183, 3, 0.12), transparent 34%),
    linear-gradient(160deg, rgba(44, 31, 90, 0.96), rgba(22, 16, 52, 0.98));
  border-color: rgba(245, 237, 255, 0.25);
  box-shadow: 0 6px 0 rgba(5, 3, 20, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transform: rotate(-0.5deg);
}

.level-card:nth-child(4n + 2) { transform: rotate(0.55deg); }
.level-card:nth-child(4n + 3) { transform: rotate(-0.35deg); }
.level-card:nth-child(4n + 4) { transform: rotate(0.4deg); }

.level-card:not(:disabled):hover {
  border-color: var(--accent-3);
  box-shadow: 0 10px 0 rgba(5, 3, 20, 0.5), 0 0 30px rgba(255, 183, 3, 0.22);
  transform: translateY(-4px) rotate(0deg);
}

.level-card:disabled {
  filter: grayscale(0.45);
  opacity: 0.45;
}

.level-card[data-current="true"] {
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 209, 102, 0.28), transparent 55%),
    linear-gradient(160deg, #4c3a1e, #2a1f4a);
  border-color: var(--accent-3);
  box-shadow: 0 6px 0 rgba(5, 3, 20, 0.5), 0 0 32px rgba(255, 183, 3, 0.22);
}

.level-num {
  border-color: rgba(255, 248, 227, 0.85);
  background: linear-gradient(135deg, #ffe29a, #ffb703 58%, #ff8a5c);
  color: #241243;
  box-shadow: 0 0 16px rgba(255, 183, 3, 0.3);
}

.level-name {
  color: #fff7df;
}

.level-goal {
  color: #c3b9e3;
}

.level-stars {
  color: rgba(245, 237, 255, 0.2);
}

.level-stars .on {
  color: #ffd166;
  text-shadow: 0 0 12px rgba(255, 209, 102, 0.65);
}

.level-lock {
  top: 12px;
  right: 12px;
  display: block;
  width: 20px;
  height: 16px;
  border: 2px solid rgba(245, 237, 255, 0.55);
  border-radius: 5px;
  font-size: 0;
  line-height: 0;
  color: transparent;
  text-indent: -999px;
  white-space: nowrap;
}

.level-lock::before {
  content: "";
  position: absolute;
  left: 3px;
  top: -10px;
  width: 10px;
  height: 10px;
  border: 2px solid rgba(245, 237, 255, 0.55);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
}

.levels-foot {
  color: var(--muted);
}

/* ---------- 遊戲畫面 ---------- */
.play-kicker {
  color: var(--accent-2);
  text-shadow: 0 0 16px rgba(255, 107, 107, 0.28);
}

.play-title {
  color: #fff7df;
}

.play-objective {
  color: var(--muted);
}

.hud-item {
  background: linear-gradient(160deg, rgba(45, 33, 90, 0.96), rgba(23, 17, 54, 0.98));
  border-color: rgba(245, 237, 255, 0.34);
  box-shadow: 0 4px 0 rgba(5, 3, 20, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.hud-label {
  color: var(--muted);
}

.hud-item strong {
  color: #fff5d6;
  text-shadow: 0 0 14px rgba(255, 183, 3, 0.28);
}

.timer {
  background: rgba(12, 8, 34, 0.9);
  border-color: rgba(245, 237, 255, 0.4);
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.35);
}

.timer-fill {
  background: linear-gradient(90deg, #3ddc97, #ffd166 52%, #ff6b6b);
  box-shadow: 0 0 16px rgba(255, 209, 102, 0.45);
}

.timer-text {
  color: #fff8e3;
  text-shadow: 0 2px 4px rgba(5, 3, 20, 0.85);
}

.q-dot {
  background: rgba(245, 237, 255, 0.14);
}

.q-dot.done {
  background: var(--accent-2);
  box-shadow: 0 0 10px rgba(255, 107, 107, 0.4);
}

.q-dot.now {
  background: var(--accent-3);
  box-shadow: 0 0 12px rgba(255, 209, 102, 0.55);
}

.question-host {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 183, 3, 0.08), transparent 42%),
    radial-gradient(circle at 90% 92%, rgba(109, 93, 252, 0.14), transparent 38%),
    linear-gradient(165deg, rgba(34, 25, 74, 0.98), rgba(17, 12, 43, 0.99));
  border-color: rgba(245, 237, 255, 0.28);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.question-host::before {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -56px;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(255, 209, 102, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.q-prompt {
  color: #fff7df;
}

.q-sub,
.q-hint {
  color: var(--muted);
}

.q-passage {
  background: rgba(255, 209, 102, 0.06);
  border-color: rgba(255, 209, 102, 0.28);
  color: #f6efff;
}

.q-prompt-big {
  color: #fff7df;
  text-shadow: 0 0 24px rgba(255, 183, 3, 0.25);
}

/* ---------- 巨大注音卡片 ---------- */
.q-big-card {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(190px, 30vh, 270px);
  margin-bottom: 6px;
  border: 2px solid rgba(255, 209, 102, 0.32);
  border-radius: 30px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 183, 3, 0.22), transparent 34%),
    radial-gradient(circle at 20% 90%, rgba(255, 107, 107, 0.12), transparent 40%),
    linear-gradient(160deg, rgba(29, 21, 66, 0.92), rgba(14, 10, 38, 0.96));
  box-shadow: inset 0 0 60px rgba(109, 93, 252, 0.16), 0 0 40px rgba(255, 183, 3, 0.08);
}

.q-big-orbit {
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1px solid rgba(255, 209, 102, 0.22);
  border-radius: 50%;
  pointer-events: none;
}

.q-big-orbit.orbit-a {
  width: min(76%, 420px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%) rotate(-16deg) scaleY(0.38);
}

.q-big-orbit.orbit-b {
  width: min(58%, 310px);
  aspect-ratio: 1;
  border-style: dashed;
  border-color: rgba(255, 107, 107, 0.2);
  transform: translate(-50%, -50%) rotate(22deg) scaleY(0.52);
}

.q-big-halo {
  position: absolute;
  width: clamp(130px, 22vw, 210px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 209, 102, 0.28), transparent 68%);
  animation: halo-breathe 3.6s ease-in-out infinite;
}

.q-big-symbol {
  position: relative;
  z-index: 1;
  font-family: var(--font-zhuyin);
  font-size: clamp(96px, 21vw, 176px);
  line-height: 1;
  color: #fff3c4;
  text-shadow:
    0 0 22px rgba(255, 183, 3, 0.65),
    0 0 60px rgba(255, 107, 107, 0.25),
    0 8px 0 rgba(4, 2, 16, 0.35);
  animation: symbol-float 4.2s ease-in-out infinite;
}

.q-big-badge {
  position: absolute;
  top: 14px;
  left: 16px;
  z-index: 2;
  padding: 4px 12px;
  border: 1px solid rgba(255, 209, 102, 0.38);
  border-radius: 999px;
  background: rgba(12, 8, 34, 0.65);
  color: var(--accent-3);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

@keyframes halo-breathe {
  0%, 100% { transform: scale(0.92); opacity: 0.65; }
  50% { transform: scale(1.08); opacity: 1; }
}

@keyframes symbol-float {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-8px) rotate(1deg); }
}

/* ---------- 聽音選符號 ---------- */
.q-listen-card {
  display: grid;
  place-items: center;
  padding: 18px 0 10px;
}

.q-speaker {
  position: relative;
  display: grid;
  place-items: center;
  width: 116px;
  height: 116px;
  border: 2px solid rgba(255, 209, 102, 0.42);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 246, 210, 0.28), transparent 34%),
    linear-gradient(150deg, #4c3a1e, #2a1f57 68%);
  box-shadow: 0 0 34px rgba(255, 183, 3, 0.24), inset 0 0 30px rgba(109, 93, 252, 0.2);
}

.q-speaker::before,
.q-speaker::after {
  content: "";
  position: absolute;
  inset: -10px;
  border: 1px solid rgba(255, 209, 102, 0.26);
  border-radius: 50%;
  animation: sonar 2.4s ease-out infinite;
}

.q-speaker::after {
  animation-delay: 1.2s;
}

.q-speaker svg {
  width: 58px;
  height: 58px;
  fill: none;
}

.q-speaker .speaker-body {
  fill: #ffe29a;
}

.q-speaker .speaker-wave {
  fill: none;
  stroke: #ffd166;
  stroke-width: 3.4;
  stroke-linecap: round;
}

.q-speaker .wave-two {
  stroke: #ff8a5c;
  opacity: 0.8;
}

.q-wave-row {
  position: absolute;
  left: 50%;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 4px;
  transform: translateX(-50%);
}

.q-wave {
  width: 3px;
  height: 8px;
  border-radius: 999px;
  background: #ffd166;
  opacity: 0.7;
  animation: wave-beat 0.9s ease-in-out infinite alternate;
  animation-delay: calc(var(--i) * 90ms);
}

@keyframes sonar {
  from { transform: scale(0.82); opacity: 0; }
  24% { opacity: 0.7; }
  to { transform: scale(1.32); opacity: 0; }
}

@keyframes wave-beat {
  from { height: 6px; opacity: 0.45; }
  to { height: 18px; opacity: 1; }
}

/* ---------- 拼音組合 ---------- */
.q-compose {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 1.6vw, 16px);
  padding: 18px 4px 10px;
}

.q-tile {
  display: grid;
  place-items: center;
  min-width: clamp(64px, 12vw, 92px);
  height: clamp(64px, 12vw, 92px);
  padding: 0 12px;
  border: 2px solid rgba(255, 209, 102, 0.5);
  border-radius: 20px;
  background: linear-gradient(160deg, rgba(72, 52, 28, 0.95), rgba(32, 23, 62, 0.98));
  box-shadow: 0 5px 0 rgba(5, 3, 20, 0.5), 0 0 24px rgba(255, 183, 3, 0.12);
  color: #fff3c4;
  font-family: var(--font-zhuyin);
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1;
}

.q-plus,
.q-equals {
  color: var(--accent-3);
  font-family: var(--font-body);
  font-size: clamp(24px, 4.6vw, 34px);
  font-weight: 900;
  text-shadow: 0 0 16px rgba(255, 209, 102, 0.4);
}

.q-mystery {
  display: grid;
  place-items: center;
  min-width: clamp(64px, 12vw, 92px);
  height: clamp(64px, 12vw, 92px);
  border: 2px dashed rgba(255, 107, 107, 0.7);
  border-radius: 20px;
  background: rgba(255, 107, 107, 0.08);
  color: #ffb3b3;
  font-family: var(--font-zhuyin);
  font-size: clamp(30px, 6vw, 44px);
}

/* ---------- 聲調與短語 ---------- */
.q-tone-panel,
.q-phrase-board {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 12px 0 6px;
  text-align: center;
}

.q-tone-word {
  font-size: clamp(46px, 9vw, 76px);
  font-weight: 900;
  line-height: 1.5;
  color: #fff7df;
}

.q-tone-sentence {
  padding: 8px 18px;
  border: 1px dashed rgba(255, 209, 102, 0.32);
  border-radius: 16px;
  background: rgba(255, 209, 102, 0.05);
  font-size: clamp(19px, 3vw, 25px);
  line-height: 2;
  color: #f6efff;
}

.q-tone-target,
.q-phrase-target {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border: 1px solid rgba(255, 107, 107, 0.36);
  border-radius: 999px;
  background: rgba(255, 107, 107, 0.08);
}

.q-target-label {
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.q-target-word,
.q-phrase-word {
  color: #ffe2e6;
  font-size: 22px;
  font-weight: 900;
}

.q-tone-scale {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 2px;
}

.q-tone-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 209, 102, 0.3);
  border-radius: 12px;
  background: rgba(255, 209, 102, 0.06);
  color: #ffe9b0;
  font-family: var(--font-zhuyin);
  font-size: 20px;
}

.q-phrase-text {
  padding: 8px 14px;
  font-size: clamp(24px, 4.4vw, 36px);
  font-weight: 900;
  line-height: 2.1;
  color: #fff7df;
}

.q-pick-orb {
  display: grid;
  place-items: center;
  width: clamp(110px, 18vw, 150px);
  aspect-ratio: 1;
  margin: 8px auto 0;
  border: 1px solid rgba(255, 209, 102, 0.3);
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 32%, rgba(255, 246, 210, 0.2), transparent 38%),
    linear-gradient(150deg, rgba(72, 52, 28, 0.9), rgba(32, 23, 62, 0.98));
  box-shadow: 0 0 34px rgba(255, 183, 3, 0.16);
}

.q-pick-mark {
  color: var(--accent-3);
  font-family: var(--font-zhuyin);
  font-size: clamp(48px, 8vw, 72px);
  text-shadow: 0 0 24px rgba(255, 209, 102, 0.4);
}

/* ---------- 選項 ---------- */
.choice {
  background: linear-gradient(160deg, rgba(46, 34, 91, 0.96), rgba(24, 18, 56, 0.98));
  border-color: rgba(245, 237, 255, 0.32);
  color: #f7f1ff;
  box-shadow: 0 5px 0 rgba(5, 3, 20, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.choice:hover:not(:disabled) {
  background: linear-gradient(160deg, #43317f, #2c2160);
  border-color: var(--accent-3);
  box-shadow: 0 7px 0 rgba(5, 3, 20, 0.5), 0 0 24px rgba(255, 183, 3, 0.18);
}

.choice .key {
  color: rgba(245, 237, 255, 0.5);
}

.choice.zhuyin-choice {
  color: #fff3c4;
  text-shadow: 0 0 16px rgba(255, 183, 3, 0.22);
}

.choice.correct {
  background: linear-gradient(160deg, #16553f, #0d3528);
  border-color: var(--good);
  color: #eafff5;
  box-shadow: 0 5px 0 #0a2c20, 0 0 30px rgba(61, 220, 151, 0.3);
}

.choice.wrong {
  background: linear-gradient(160deg, #641f32, #421424);
  border-color: var(--bad);
  color: #ffe8ec;
  box-shadow: 0 5px 0 #32101c, 0 0 30px rgba(255, 93, 115, 0.3);
}

.choices-tone .choice {
  font-family: var(--font-zhuyin);
  letter-spacing: 0.04em;
}

/* ---------- 回饋與結果 ---------- */
.feedback-burst {
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 209, 102, 0.14), transparent 45%),
    linear-gradient(160deg, #241b4d, #120d31);
  border-color: rgba(255, 209, 102, 0.65);
  box-shadow: 0 0 50px rgba(255, 183, 3, 0.24), var(--shadow);
}

.feedback-burst.bad {
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 107, 107, 0.18), transparent 45%),
    linear-gradient(160deg, #3a1730, #150c28);
  border-color: rgba(255, 93, 115, 0.65);
}

.feedback-text {
  color: #fff7df;
}

.feedback-explain {
  color: var(--muted);
}

body.flash-good::after {
  box-shadow: inset 0 0 0 14px rgba(61, 220, 151, 0.65), inset 0 0 90px rgba(61, 220, 151, 0.2);
}

body.flash-bad::after {
  box-shadow: inset 0 0 0 14px rgba(255, 93, 115, 0.65), inset 0 0 90px rgba(255, 93, 115, 0.2);
}

.result-card {
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 183, 3, 0.14), transparent 44%),
    linear-gradient(165deg, #241b4d, #120d31);
}

.result-title {
  color: #fff7df;
}

.result-sub {
  color: var(--muted);
}

.stars {
  color: rgba(245, 237, 255, 0.16);
}

.star.on {
  color: #ffd166;
  text-shadow: 0 0 22px rgba(255, 209, 102, 0.7), 0 4px 0 rgba(5, 3, 20, 0.6);
}

.result-stats div {
  background: rgba(255, 209, 102, 0.05);
  border-color: rgba(245, 237, 255, 0.16);
}

.result-stats span {
  color: var(--muted);
}

.result-stats strong {
  color: #fff5d6;
}

/* ---------- 對話框 ---------- */
.dialog::backdrop {
  background: rgba(4, 2, 16, 0.78);
  backdrop-filter: blur(6px);
}

.dialog-panel {
  background:
    radial-gradient(circle at 88% 0%, rgba(255, 183, 3, 0.1), transparent 38%),
    linear-gradient(165deg, #241b4d, #120d31);
  border-color: rgba(245, 237, 255, 0.42);
  box-shadow: 0 0 50px rgba(109, 93, 252, 0.18), var(--shadow);
}

.dialog-head h2 {
  color: #fff7df;
}

.setting-row {
  border-bottom-color: rgba(245, 237, 255, 0.16);
}

.setting-label {
  color: #eee6ff;
}

.switch {
  background: rgba(12, 8, 34, 0.9);
  border-color: rgba(245, 237, 255, 0.5);
}

.switch::after {
  background: #fff7df;
  border-color: rgba(5, 3, 20, 0.6);
}

.switch:checked {
  background: linear-gradient(135deg, #ff6b6b, #c94b6b);
  border-color: #ffb3b3;
}

.dialog-note {
  color: #8f84b6;
}

.install-list {
  color: #d8cef7;
}

/* ---------- 提示與頁尾 ---------- */
.toast {
  background: linear-gradient(135deg, #ffe29a, #ffb703);
  border-color: rgba(255, 248, 227, 0.9);
  color: #241243;
  box-shadow: 0 0 26px rgba(255, 183, 3, 0.28);
}

.skip-link {
  background: var(--accent-3);
  color: #241243;
}

.site-footer {
  background: rgba(9, 6, 26, 0.92);
  border-top-color: rgba(245, 237, 255, 0.14);
  color: #9f94c4;
}

.site-footer a {
  color: var(--accent-3);
}

/* ---------- 注音顯示 ---------- */
body.zhuyin-on [data-zy] {
  font-family: var(--font-zhuyin);
  font-weight: 400;
}

body.zhuyin-on .hero-title[data-zy] {
  line-height: 1.62;
}

body.zhuyin-on .level-name[data-zy],
body.zhuyin-on .level-goal[data-zy] {
  line-height: 1.85;
}

body.zhuyin-on .choice [data-zy] {
  line-height: 1.9;
}

body.zhuyin-on .q-tone-word,
body.zhuyin-on .q-tone-sentence,
body.zhuyin-on .q-phrase-text,
body.zhuyin-on .q-target-word,
body.zhuyin-on .q-phrase-word {
  line-height: 2.05;
}

/* ---------- 響應式 ---------- */
@media (max-width: 860px) {
  .hero::before {
    inset: 4% -2%;
    opacity: 0.18;
  }

  .hero-art::before {
    width: 88%;
  }

  .question-host {
    min-height: 300px;
  }
}

@media (max-width: 620px) {
  .hero-title {
    text-shadow: 0 0 22px rgba(255, 183, 3, 0.18);
  }

  .q-big-card {
    min-height: 176px;
    border-radius: 24px;
  }

  .q-speaker {
    width: 96px;
    height: 96px;
  }

  .q-speaker svg {
    width: 48px;
    height: 48px;
  }

  .q-tile,
  .q-mystery {
    min-width: 58px;
    height: 58px;
    border-radius: 16px;
  }

  .q-tone-mark {
    width: 32px;
    height: 32px;
    font-size: 17px;
  }

  .q-tone-word {
    font-size: clamp(40px, 10vw, 58px);
  }

  .q-phrase-text {
    font-size: clamp(21px, 5.6vw, 30px);
  }
}

/* ---------- 減少動態 ---------- */
body[data-motion="off"] *,
body[data-motion="off"] *::before,
body[data-motion="off"] *::after {
  animation: none !important;
  transition: none !important;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}