body {
  font-family: "Helvetica Neue", sans-serif;
  margin: 40px auto;
  max-width: 800px;
  background-color: #f7f9fc;
  color: #333;
}
h1 {
  text-align: center;
  margin-bottom: 40px;
}
.audio-block {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 0 8px rgba(0,0,0,0.05);
  margin-bottom: 30px;
}
h2 {
  font-size: 18px;
  margin-bottom: 10px;
}
audio {
  width: 100%;
}