/* 按钮、卡组、通用小组件等样式 */
.primary-btn {
  font-size: 18px;
  padding: 8px 28px;
  border-radius: 8px;
  background: #0078d7;
  color: #fff;
  border: none;
  box-shadow: 0 2px 8px #b3cfff;
  cursor: pointer;
  transition: background 0.2s;
}
.primary-btn:disabled {
  background: #b3cfff;
  color: #fff;
  cursor: not-allowed;
}
.secondary-btn {
  font-size: 16px;
  padding: 8px 18px;
  border-radius: 8px;
  background: #f0f4ff;
  color: #333;
  border: 1.5px solid #b3cfff;
  box-shadow: 0 2px 8px #e3eaff;
  cursor: pointer;
  margin-left: 8px;
  transition: background 0.2s;
}
.secondary-btn:disabled {
  background: #e3eaff;
  color: #aaa;
  border-color: #b3cfff;
  cursor: not-allowed;
  opacity: 0.7;
}
.close-btn {
  margin-top: 16px;
}
.current-deck-info {
  margin: 16px auto;
  max-width: 600px;
  background: #f8f8ff;
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 16px;
}
.card-view {
  width: 48px;
  height: 68px;
  margin: 2px;
  border-radius: 6px;
  vertical-align: middle;
  border: 1.5px solid #0078d7;
  cursor: pointer;
}