/* FAQ板块样式 */
.faq-section {
  padding: 120px 0;
  background: white;
  position: relative;
}

.faq-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, #e3f2fd, transparent);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 80px;
}

.faq-item {
  background: white;
  border-radius: 20px;
  padding: 35px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid #e3f2fd;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.faq-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(21, 101, 192, 0.15);
  border-color: #42a5f5;
}

.faq-question {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  position: relative;
}

.faq-number {
  font-size: 48px;
  font-weight: 900;
  background: linear-gradient(135deg, #1565c0 0%, #42a5f5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  opacity: 0.9;
  flex-shrink: 0;
  font-family: 'Arial', sans-serif;
}

.faq-question h3 {
  flex: 1;
  font-size: 20px;
  font-weight: 700;
  color: #1565c0;
  line-height: 1.5;
  margin: 0;
  padding-top: 8px;
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 10px;
  stroke: #42a5f5;
  stroke-width: 2.5;
  transition: transform 0.4s ease, stroke 0.3s ease;
}

.faq-item:hover .faq-icon {
  transform: translateY(4px);
  stroke: #1565c0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, margin-top 0.3s ease;
  opacity: 0;
  margin-top: 0;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  opacity: 1;
  margin-top: 25px;
  padding-top: 25px;
  border-top: 2px solid #e3f2fd;
}

.faq-answer p {
  font-size: 16px;
  line-height: 1.8;
  color: #616161;
  margin: 0;
  padding-left: 68px;
}

/* 动画效果 */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式 */
@media (max-width: 1024px) {
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .faq-item {
    padding: 30px;
  }

  .faq-number {
    font-size: 40px;
  }

  .faq-question h3 {
    font-size: 18px;
  }
}

@media (max-width: 768px) {
  .faq-section {
    padding: 80px 0;
  }

  .faq-item {
    padding: 25px;
  }

  .faq-number {
    font-size: 36px;
  }

  .faq-question h3 {
    font-size: 16px;
  }

  .faq-answer p {
    font-size: 15px;
    padding-left: 58px;
  }
}