/* ===== FAQ 页面专属样式 ===== */
.page-faq {
  padding: 0 1.5rem 3rem;
  max-width: var(--content-max);
  margin: 0 auto;
}

.page-faq__hero {
  text-align: center;
  padding: 3rem 0 2rem;
}

.page-faq__hero-inner {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.page-faq__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}

.page-faq__subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}

/* 折叠面板整体 */
.page-faq__accordion {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* 每个分类组 */
.page-faq__group {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid rgba(255, 215, 0, 0.15);
}

.page-faq__group-title {
  margin: 0;
  font-size: 1rem;
}

.page-faq__group-toggle {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 1.2rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--accent-gold);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: left;
  font-family: inherit;
  gap: 0.75rem;
  transition: background 0.2s;
}

.page-faq__group-toggle:hover,
.page-faq__group-toggle:focus-visible {
  background: rgba(0, 255, 135, 0.08);
}

.page-faq__group-icon {
  flex-shrink: 0;
  color: var(--accent-green);
  display: inline-flex;
}

.page-faq__group-arrow {
  margin-left: auto;
  transition: transform 0.25s ease;
  font-size: 0.75rem;
}

.page-faq__group-toggle[aria-expanded="true"] .page-faq__group-arrow {
  transform: rotate(180deg);
}

/* 分类内容区域 */
.page-faq__group-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.page-faq__group-content[aria-hidden="false"] {
  max-height: 2000px; /* 足够容纳内容 */
}

.page-faq__group-content[aria-hidden="true"] {
  max-height: 0;
}

/* 图片块 */
.page-faq__img-block {
  padding: 0 1.5rem 1rem;
}

.page-faq__img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  background: var(--bg-mid);
  display: block;
  margin: 0 auto;
}

/* 问题列表 */
.page-faq__items {
  padding: 0 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-faq__item {
  border-bottom: 1px solid rgba(176, 176, 176, 0.12);
}

.page-faq__item:last-child {
  border-bottom: none;
}

/* 问题触发器 */
.page-faq__question {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 1rem 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  text-align: left;
  font-family: inherit;
  gap: 0.75rem;
  transition: color 0.2s;
}

.page-faq__question:hover,
.page-faq__question:focus-visible {
  color: var(--accent-green);
}

.page-faq__q-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 255, 135, 0.15);
  color: var(--accent-green);
  font-size: 0.8rem;
  font-weight: 700;
}

/* 答案内容 */
.page-faq__answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.25s ease;
}

.page-faq__answer[aria-hidden="false"] {
  max-height: 800px;
}

.page-faq__answer[aria-hidden="true"] {
  max-height: 0;
}

.page-faq__answer p,
.page-faq__answer ul {
  padding: 0 0.5rem 1rem;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq__answer ul {
  list-style: none;
  padding-left: 0.5rem;
}

.page-faq__answer li {
  padding-bottom: 0.3rem;
}

.page-faq__answer a {
  color: var(--accent-green);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq__answer a:hover {
  color: var(--accent-gold);
}

.page-faq__contact-list li::before {
  content: "→ ";
  color: var(--accent-gold);
  margin-right: 0.3rem;
}

/* 底部返回链接 */
.page-faq__back {
  padding: 2rem 0 0;
  text-align: center;
}

/* 移动端优先调整 */
@media (max-width: 640px) {
  .page-faq {
    padding: 0 0.75rem 2rem;
  }

  .page-faq__title {
    font-size: 1.75rem;
  }

  .page-faq__group-toggle {
    padding: 1rem;
    font-size: 1rem;
  }

  .page-faq__items,
  .page-faq__img-block {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-faq__question {
    font-size: 0.9375rem;
    padding: 0.8rem 0.25rem;
  }
}

/* 桌面增强：两栏布局？保持单选，只增大间距 */
@media (min-width: 768px) {
  .page-faq {
    padding: 0 2rem 4rem;
  }

  .page-faq__hero {
    padding: 4rem 0 3rem;
  }
}