.virtual-pdf-viewer-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-color-secondary);
}

.pdf-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  z-index: 10;
  color: var(--text-color);
}

.pdf-content {
  flex: 1;
  overflow: auto;
  position: relative;
}

.pdf-virtual-list {
  background: var(--bg-color-secondary);
}

.pdf-page-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  background: var(--bg-color-secondary);
}

.pdf-page-wrapper canvas {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  background: white;
  margin-bottom: 8px;
}

.pdf-page-number {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-color);
  font-weight: 600;
  text-align: center;
}

.pdf-page-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 600px;
  gap: 8px;
  color: var(--text-color-secondary);
  font-size: 14px;
}

.pdf-page-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 600px;
  background: var(--item-hover-bg);
  border: 1px dashed var(--border-color);
  color: var(--text-color-secondary);
  font-size: 14px;
}

.pdf-page-skeleton {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  min-height: 800px;
}

.pdf-page-error {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  margin: 20px;
}

.pdf-page-error p {
  color: #ff4d4f;
  font-size: 14px;
}

.pdf-loading {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  min-height: 400px;
  color: var(--text-color);
}

.pdf-error {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  min-height: 400px;
  color: #ff4d4f;
  font-size: 16px;
}

/* 文本层样式优化 */
.react-pdf__Page__textContent {
  user-select: text;
}

/* 注释层样式优化 */
.react-pdf__Page__annotations {
  user-select: none;
}

/* Document容器样式 - 确保不限制高度 */
.react-pdf__Document {
  height: 100%;
  width: 100%;
}