/* 全站共用：配色、字體、按鈕、卡片。湖水綠＋珊瑚橘，圓角卡片。 */
:root {
  --teal: #2c8f93;
  --teal-deep: #1f6f73;
  --teal-soft: #dcefed;
  --teal-mist: #eef6f4;
  --coral: #e9673e;
  --coral-deep: #cf5129;
  --coral-soft: #fde4d9;
  --sun: #f5b942;
  --cream: #fffaf2;
  --paper: #ffffff;
  --ink: #2f2925;
  --ink-soft: #5f716f;
  --muted: #81766d;
  --line: #e8ddd0;
  --success: #3a9b6b;
  --danger: #d94b3f;
  --shadow: 0 10px 30px rgba(31, 111, 115, .12);
  --shadow-soft: 0 4px 14px rgba(31, 111, 115, .08);
  --radius-lg: 28px;
  --radius: 18px;
  --radius-sm: 12px;
  --font: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", "Heiti TC", system-ui, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background: var(--teal-soft);
  line-height: 1.55;
}
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; }
img { max-width: 100%; display: block; }
a { color: var(--teal-deep); }
:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; }

.eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--coral);
}

.card {
  background: var(--paper);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.primary-button, .secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  border: 0;
  font-weight: 800;
  font-size: 16px;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s, background .15s, opacity .15s;
}
.primary-button {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 6px 0 var(--coral-deep);
}
.primary-button:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 0 var(--coral-deep); }
.primary-button:active:not(:disabled) { transform: translateY(3px); box-shadow: 0 3px 0 var(--coral-deep); }
.primary-button:disabled { background: #d8cfc6; box-shadow: 0 6px 0 #c3b9ae; color: #fff; }
.secondary-button {
  background: var(--paper);
  color: var(--teal-deep);
  border: 2px solid var(--teal);
}
.secondary-button:hover:not(:disabled) { background: var(--teal-mist); }
.secondary-button:disabled { opacity: .45; }

.music-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, .92);
  color: var(--teal-deep);
  font-weight: 800;
  font-size: 14px;
  box-shadow: var(--shadow-soft);
}
.music-toggle.needs-action span { animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { transform: scale(1.3); } }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

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