body {
  margin: 0;
  background: #f5f5f5;
  font-family: sans-serif;
}

.pdf-viewer {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}

#pdf-container canvas {
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  background: white;
}

/* 右クリック対策レイヤー */
.pdf-cover {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
}

@media print {
  #pdf-container {
    display: none;
  }
}