/* 基础样式 */
page {
  background-color: #f8f8f8;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.help-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 导航栏样式 */
.nav-bar {
  height: 120rpx;
  background-color: #51bdb6;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.nav-title {
  font-size: 36rpx;
  color: #fff;
  font-weight: 500;
}

/* 搜索框样式 */
.search-box {
  display: flex;
  align-items: center;
  background-color: #fff;
  border-radius: 60rpx;
  padding: 0 30rpx;
  margin: 20rpx 30rpx;
  height: 80rpx;
  box-shadow: 0 2rpx 10rpx rgba(0, 0, 0, 0.05);
}

.search-icon {
  margin-right: 15rpx;
}

.search-input {
  flex: 1;
  height: 100%;
  font-size: 28rpx;
  color: #333;
}

.search-input::placeholder {
  color: #ccc;
}

/* 分类导航样式 */
.categories {
  display: flex;
  justify-content: space-around;
  background-color: #fff;
  padding: 25rpx 0;
  margin-bottom: 20rpx;
  box-shadow: 0 2rpx 10rpx rgba(0, 0, 0, 0.03);
}

.category-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 120rpx;
}

.category-icon {
  width: 60rpx;
  height: 60rpx;
  border-radius: 50%;
  background-color: #f0f7f7;
  margin-bottom: 10rpx;
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-item.active .category-icon {
  background-color: #51bdb6;
}

.category-name {
  font-size: 24rpx;
  color: #666;
}

.category-item.active .category-name {
  color: #51bdb6;
  font-weight: 500;
}

/* 常见问题列表样式 */
.faq-list {
  flex: 1;
  padding: 0 30rpx;
}

.section-title {
  font-size: 30rpx;
  color: #333;
  margin-bottom: 20rpx;
  font-weight: 500;
}

.faq-item {
  background-color: #fff;
  border-radius: 16rpx;
  margin-bottom: 15rpx;
  overflow: hidden;
  box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.03);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30rpx;
  cursor: pointer;
}

.question-text {
  font-size: 28rpx;
  color: #333;
  line-height: 1.5;
  flex: 1;
  padding-right: 20rpx;
}

.faq-arrow {
  transition: transform 0.3s ease;
}

.faq-arrow.expanded {
  transform: rotate(180deg);
}

.faq-answer {
  font-size: 26rpx;
  color: #666;
  line-height: 1.6;
  padding: 0 30rpx 30rpx;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  border-top: 1rpx solid #f0f0f0;
}

.faq-answer.expanded {
  max-height: 500rpx;
  padding: 0 30rpx 30rpx;
  padding-top: 20rpx;
}

/* 空结果样式 */
.empty-result {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100rpx 0;
}

.empty-icon {
  margin-bottom: 20rpx;
  opacity: 0.5;
}

.empty-text {
  font-size: 28rpx;
  color: #999;
  margin-bottom: 10rpx;
}

.empty-hint {
  font-size: 24rpx;
  color: #ccc;
}

/* 联系客服样式 */
.contact-section {
  padding: 30rpx;
  margin-top: 20rpx;
}

.contact-title {
  font-size: 26rpx;
  color: #666;
  text-align: center;
  margin-bottom: 20rpx;
}

.contact-btn {
  width: 100%;
  height: 90rpx;
  line-height: 90rpx;
  background-color: #51bdb6;
  color: #fff;
  font-size: 32rpx;
  border-radius: 45rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
}

.contact-btn::after {
  border: none;
}

.contact-icon {
  margin-right: 10rpx;
}

.contact-btn:active {
  background-color: #45a39f;
}