.faq-container {
  min-height: 70vh;
}

.faq-header {
  text-align: center;
  margin-bottom: 4rem;
}

.faq-header h1 {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.faq-header p {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 80rem;
  margin: 0 auto;
}

.faq-category {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.category-indicator {
  width: 0.25rem;
  height: 1.5rem;
  background: hsl(var(--primary));
  border-radius: 9999px;
}

.category-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(var(--foreground));
}

/* 手风琴 */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.accordion-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 1rem;
  overflow: hidden;
  transition: all 0.3s;
}

.accordion-item:hover {
  border-color: hsla(var(--primary), 0.3);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  color: hsl(var(--foreground));
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: color 0.3s;
}

.accordion-trigger:hover {
  color: hsl(var(--primary));
}

.accordion-icon {
  flex-shrink: 0;
  transition: transform 0.3s;
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
  padding: 0 1.5rem;
}

.accordion-item.active .accordion-content {
  max-height: 500px;
  padding: 0 1.5rem 1.5rem;
}

.accordion-content p {
  color: hsl(var(--muted-foreground));
  line-height: 1.6;
  font-size: 0.875rem;
}

/* FAQ CTA */
.faq-cta {
  margin-top: 6rem;
  padding: 3rem;
  border-radius: 1.5rem;
  background: hsla(var(--primary), 0.05);
  border: 1px solid hsla(var(--primary), 0.2);
  text-align: center;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
}

.faq-cta h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.faq-cta p {
  color: hsl(var(--muted-foreground));
  margin-bottom: 1.5rem;
}

/* 响应式 */
@media (min-width: 768px) {
  .faq-header h1 {
    font-size: 3.75rem;
  }

  .faq-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .accordion-trigger {
    font-size: 1.125rem;
  }

  .accordion-content p {
    font-size: 1rem;
  }
}