/* 帮助中心样式 */
.page {
  min-height:100vh;
  background:var(--color-bg-subtle);
  display:flex;
  flex-direction:column;
}

.category-bar {
  white-space:nowrap;
  background:var(--color-bg-card);
  padding:0 24rpx;
  border-bottom:1rpx solid var(--color-divider);
  flex-shrink:0;
}

.category-item {
  display:inline-block;
  padding:24rpx 32rpx;
  font-size:28rpx;
  color:var(--color-text-secondary);
  border-bottom:4rpx solid transparent;
}

.category-item.active {
  color:var(--color-primary-strong);
  border-bottom-color:var(--color-primary);
  font-weight:600;
}

.faq-list {
  flex:1;
  padding:24rpx 32rpx;
}

.faq-item {
  background:var(--color-bg-card);
  border-radius:16rpx;
  margin-bottom:24rpx;
  padding:28rpx 32rpx;
}

.faq-question {
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:30rpx;
  color:var(--color-text-strong);
  font-weight:500;
}

.faq-arrow {
  font-size:20rpx;
  color:var(--color-text-disabled);
  transition:transform 0.2s;
}

.faq-arrow.up {
  transform:rotate(180deg);
  color:var(--color-primary-strong);
}

.faq-answer {
  margin-top:20rpx;
  padding-top:20rpx;
  border-top:1rpx solid var(--color-divider);
  font-size:26rpx;
  color:var(--color-text-secondary);
  line-height:1.7;
}