:root {
  color-scheme: light;
  font-family: "Noto Sans JP", system-ui, -apple-system, sans-serif;
  background-color: #f8fafc;
  color: #1e293b;
}

body {
  margin: 0;
  background-color: #f8fafc;
}

.page {
  max-width: 72rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

h1 {
  text-align: center;
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}

.lead {
  text-align: center;
  margin: 0 auto 2.5rem;
  max-width: 40rem;
  font-size: 1rem;
  line-height: 1.6;
  color: #475569;
}

.voice-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.voice-card {
  background-color: #ffffff;
  border: 1px solid #dbe2ef;
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: 0 0.75rem 2rem rgba(30, 41, 59, 0.08);
  display: grid;
  gap: 0.75rem;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.voice-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 1rem 2.5rem rgba(30, 41, 59, 0.12);
}

.voice-card h2 {
  margin: 0;
  font-size: 1.25rem;
  color: #1d4ed8;
}

.voice-card p {
  margin: 0;
  color: #475569;
  font-size: 0.95rem;
}

.voice-card audio {
  width: 100%;
}

.voice-card audio::-webkit-media-controls-panel {
  background-color: #f1f5f9;
}

.voice-card audio:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 4px;
}