.page-faq {
  --faq-gold-border: var(--color-primary, #D4AF37);
  --faq-card-radius: 12px;
  --faq-card-padding: 20px 24px;
  --faq-index-width: 260px;
  --faq-gap: 32px;
  --faq-section-mb: 48px;
  --faq-tag-gap: 12px;

  display: block;
  width: 100%;
  max-width: 100%;
  background-color: var(--color-bg, #1A1A2E);
  color: var(--color-text-body, #E0E0E0);
  font-family: var(--font-body, 'Arial', 'PingFang SC', 'Noto Sans SC', sans-serif);
  line-height: 1.7;
  padding: 0 0 64px 0;
}

/* ===== 容器 ===== */
.page-faq .container {
  max-width: var(--max-width, 1200px);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  width: 100%;
  box-sizing: border-box;
}

/* ===== 面包屑 ===== */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-body, #E0E0E0);
  opacity: 0.7;
  margin-bottom: 12px;
}
.page-faq .breadcrumb-item {
  color: var(--color-text-body, #E0E0E0);
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .breadcrumb-item:hover,
.page-faq .breadcrumb-item:focus-visible {
  color: var(--color-primary, #D4AF37);
}
.page-faq .breadcrumb-current {
  color: var(--color-primary, #D4AF37);
  font-weight: 600;
}
.page-faq .breadcrumb-separator {
  color: var(--color-text-body, #E0E0E0);
  opacity: 0.4;
  user-select: none;
}

/* ===== Hero 区域 ===== */
.page-faq__hero {
  padding: 40px 0 28px 0;
  background: linear-gradient(180deg, rgba(212,175,55,0.06) 0%, transparent 100%);
  border-bottom: 1px solid var(--color-border, rgba(212,175,55,0.12));
  margin-bottom: 32px;
}
.page-faq__title {
  font-family: var(--font-heading, 'Georgia', 'Songti SC', 'Noto Serif SC', serif);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text-primary, #FFD700);
  margin: 0 0 8px 0;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.page-faq__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-body, #E0E0E0);
  opacity: 0.8;
  margin: 0 0 24px 0;
  max-width: 600px;
}

/* ===== 搜索框 ===== */
.page-faq__search {
  max-width: 520px;
  margin-bottom: 20px;
}
.page-faq__search-inner {
  display: flex;
  align-items: center;
  background: var(--color-surface, #16213E);
  border: 1px solid var(--color-border, rgba(212,175,55,0.3));
  border-radius: 40px;
  padding: 0 20px;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.page-faq__search-inner:focus-within {
  border-color: var(--color-primary, #D4AF37);
  box-shadow: 0 0 0 3px rgba(212,175,55,0.2);
}
.page-faq__search-icon {
  flex-shrink: 0;
  color: var(--color-primary, #D4AF37);
  opacity: 0.7;
  margin-right: 12px;
}
.page-faq__search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 14px 0;
  font-size: 1rem;
  font-family: var(--font-body, 'Arial', 'PingFang SC', 'Noto Sans SC', sans-serif);
  color: var(--color-text-body, #E0E0E0);
}
.page-faq__search-input::placeholder {
  color: var(--color-text-body, #E0E0E0);
  opacity: 0.4;
}

/* ===== 快速分类标签 ===== */
.page-faq__quick-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--faq-tag-gap);
  padding: 4px 0 0 0;
}
.page-faq__tag-item {
  text-decoration: none;
  font-size: 0.9rem;
  padding: 6px 18px;
  border-radius: 30px;
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.page-faq__tag-item:hover,
.page-faq__tag-item:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(212,175,55,0.2);
}
.page-faq__tag-item--feedback {
  margin-left: auto;
}

/* ===== 布局：索引 + 内容 ===== */
.page-faq__layout {
  display: flex;
  flex-direction: column;
  gap: var(--faq-gap);
}

/* ===== 索引目录（移动端默认在内容上方） ===== */
.page-faq__index {
  background: var(--color-surface, #16213E);
  border-radius: var(--faq-card-radius);
  padding: 24px 20px;
  border: 1px solid var(--color-border, rgba(212,175,55,0.15));
  box-shadow: var(--card-shadow, 0 4px 20px rgba(0,0,0,0.4));
  order: -1;
  width: 100%;
  box-sizing: border-box;
}
.page-faq__index-title {
  font-family: var(--font-mono, 'JetBrains Mono', 'Courier New', monospace);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary, #D4AF37);
  margin: 0 0 20px 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border, rgba(212,175,55,0.2));
}
.page-faq__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.page-faq__index-item {
  margin-bottom: 16px;
}
.page-faq__index-item:last-child {
  margin-bottom: 0;
}
.page-faq__index-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text-body, #E0E0E0);
  font-weight: 600;
  font-size: 1rem;
  padding: 6px 0;
  transition: color 0.2s;
  border-bottom: 1px solid transparent;
}
.page-faq__index-link:hover,
.page-faq__index-link:focus-visible {
  color: var(--color-primary, #D4AF37);
}
.page-faq__index-num {
  font-family: var(--font-mono, 'JetBrains Mono', 'Courier New', monospace);
  font-size: 0.8rem;
  color: var(--color-primary, #D4AF37);
  opacity: 0.7;
  min-width: 28px;
}
.page-faq__index-label {
  font-family: var(--font-heading, 'Georgia', 'Songti SC', 'Noto Serif SC', serif);
}
.page-faq__index-sublist {
  list-style: none;
  margin: 6px 0 0 38px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-faq__index-sublink {
  font-size: 0.88rem;
  color: var(--color-text-body, #E0E0E0);
  opacity: 0.75;
  text-decoration: none;
  padding: 3px 0;
  display: inline-block;
  transition: color 0.2s, opacity 0.2s;
  border-bottom: 1px solid transparent;
}
.page-faq__index-sublink:hover,
.page-faq__index-sublink:focus-visible {
  color: var(--color-primary, #D4AF37);
  opacity: 1;
}
.page-faq__index-cta {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border, rgba(212,175,55,0.12));
}
.page-faq__index-btn {
  display: block;
  text-align: center;
  font-size: 0.9rem;
  padding: 10px 16px;
  border-radius: 30px;
}

/* ===== 问答内容区 ===== */
.page-faq__content {
  flex: 1;
  min-width: 0;
}

/* ===== 每个章节 ===== */
.page-faq__section {
  margin-bottom: var(--faq-section-mb);
  scroll-margin-top: 100px;
}
.page-faq__section:last-child {
  margin-bottom: 0;
}
.page-faq__section-title {
  font-family: var(--font-heading, 'Georgia', 'Songti SC', 'Noto Serif SC', serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-primary, #FFD700);
  margin: 0 0 8px 0;
  display: flex;
  align-items: center;
  gap: 14px;
  line-height: 1.3;
}
.page-faq__section-num {
  font-family: var(--font-mono, 'JetBrains Mono', 'Courier New', monospace);
  font-size: 1rem;
  color: var(--color-primary, #D4AF37);
  opacity: 0.5;
  flex-shrink: 0;
}
.page-faq__section-intro {
  font-size: 0.95rem;
  color: var(--color-text-body, #E0E0E0);
  opacity: 0.75;
  margin-bottom: 20px;
  padding-left: 0;
  max-width: 680px;
}

/* ===== 章节内图片 ===== */
.page-faq__image-wrapper {
  margin-bottom: 20px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--color-border, rgba(212,175,55,0.15));
  background: var(--color-surface, #16213E);
  display: inline-block;
  max-width: 100%;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.page-faq__section-img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: attr(width) / attr(height);
}

/* ===== 手风琴卡片 ===== */
.page-faq__card {
  background: var(--color-surface, #16213E);
  border-radius: 0 var(--faq-card-radius) var(--faq-card-radius) 0;
  margin-bottom: 12px;
  border-left: 4px solid var(--faq-gold-border, #D4AF37);
  border-top: 1px solid var(--color-border, rgba(212,175,55,0.1));
  border-right: 1px solid var(--color-border, rgba(212,175,55,0.1));
  border-bottom: 1px solid var(--color-border, rgba(212,175,55,0.1));
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  transition: box-shadow 0.3s;
  overflow: hidden;
}
.page-faq__card[open] {
  box-shadow: 0 4px 20px rgba(0,0,0,0.35), 0 0 0 1px rgba(212,175,55,0.08);
}
.page-faq__card-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: var(--faq-card-padding);
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary, #FFD700);
  line-height: 1.4;
  user-select: none;
  transition: background 0.2s;
}
.page-faq__card-summary::-webkit-details-marker {
  display: none;
}
.page-faq__card-summary:hover {
  background: rgba(212,175,55,0.04);
}
.page-faq__card-summary:focus-visible {
  outline: 2px solid var(--color-primary, #D4AF37);
  outline-offset: -2px;
}
.page-faq__card-q {
  flex: 1;
  min-width: 0;
  font-family: var(--font-heading, 'Georgia', 'Songti SC', 'Noto Serif SC', serif);
  font-weight: 600;
}
.page-faq__card-icon {
  flex-shrink: 0;
  color: var(--color-primary, #D4AF37);
  opacity: 0.6;
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
}
.page-faq__card[open] .page-faq__card-icon {
  transform: rotate(180deg);
}
.page-faq__card-answer {
  padding: 0 24px 20px 24px;
  font-size: 0.95rem;
  color: var(--color-text-body, #E0E0E0);
  line-height: 1.75;
  border-top: 1px solid var(--color-border, rgba(212,175,55,0.08));
  padding-top: 16px;
  margin-top: 0;
}
.page-faq__card-answer p {
  margin: 0 0 12px 0;
}
.page-faq__card-answer p:last-child {
  margin-bottom: 0;
}

/* ===== 内联文字链接 ===== */
.page-faq__inline-link {
  color: var(--color-primary, #D4AF37);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(212,175,55,0.35);
  transition: text-decoration-color 0.2s, color 0.2s;
  font-weight: 500;
}
.page-faq__inline-link:hover,
.page-faq__inline-link:focus-visible {
  color: var(--color-secondary, #C62828);
  text-decoration-color: currentColor;
}

/* ===== 章节底部 CTA ===== */
.page-faq__section-cta {
  margin-top: 28px;
  padding: 20px 24px;
  background: radial-gradient(ellipse at left, rgba(212,175,55,0.06), transparent);
  border: 1px dashed var(--color-border, rgba(212,175,55,0.25));
  border-radius: var(--faq-card-radius);
  font-size: 0.95rem;
  color: var(--color-text-body, #E0E0E0);
  text-align: center;
}
.page-faq__section-cta strong {
  color: var(--color-text-primary, #FFD700);
}

/* ===== 按钮通用覆盖 ===== */
.page-faq .btn-primary {
  background: linear-gradient(135deg, var(--color-primary, #D4AF37), var(--color-primary-dark, #B8860B));
  color: var(--color-bg, #1A1A2E);
  border: none;
  font-weight: 700;
  font-family: var(--font-body, 'Arial', 'PingFang SC', 'Noto Sans SC', sans-serif);
  transition: opacity 0.2s, transform 0.2s;
}
.page-faq .btn-primary:hover,
.page-faq .btn-primary:focus-visible {
  opacity: 0.9;
  transform: translateY(-1px);
}
.page-faq .btn {
  text-decoration: none;
  border-radius: 30px;
  font-size: 0.9rem;
}

/* ===== 桌面端布局 ≥768px ===== */
@media (min-width: 768px) {
  .page-faq {
    padding-bottom: 80px;
  }
  .page-faq__hero {
    padding: 48px 0 32px 0;
    margin-bottom: 40px;
  }
  .page-faq__title {
    font-size: 3rem;
  }
  .page-faq__subtitle {
    font-size: 1.15rem;
  }
  .page-faq__search {
    max-width: 560px;
  }
  .page-faq__quick-tags {
    gap: 14px;
  }
  .page-faq__tag-item {
    font-size: 0.95rem;
    padding: 8px 22px;
  }
}

/* ===== 桌面端布局 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-faq__layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 40px;
  }
  .page-faq__index {
    position: sticky;
    top: calc(var(--nav-height, 72px) + 24px);
    width: var(--faq-index-width);
    flex-shrink: 0;
    order: 0;
    padding: 28px 24px;
    max-height: calc(100vh - var(--nav-height, 72px) - 80px);
    overflow-y: auto;
  }
  .page-faq__content {
    flex: 1;
    min-width: 0;
    max-width: 780px;
  }
  .page-faq__section-title {
    font-size: 1.8rem;
  }
  .page-faq__card-summary {
    padding: 22px 28px;
    font-size: 1.05rem;
  }
  .page-faq__card-answer {
    padding: 0 28px 24px 28px;
    padding-top: 18px;
    font-size: 1rem;
  }
  .page-faq__section {
    margin-bottom: 56px;
  }
  .page-faq__section-cta {
    padding: 24px 32px;
    font-size: 1rem;
  }
  .page-faq__index-btn {
    font-size: 0.95rem;
    padding: 12px 20px;
  }
}

/* ===== 大桌面端 ≥1200px ===== */
@media (min-width: 1200px) {
  .page-faq__index {
    width: 280px;
    padding: 32px 28px;
  }
  .page-faq__content {
    max-width: 820px;
  }
  .page-faq__section-intro {
    font-size: 1rem;
  }
}

/* ===== 滚动高亮（data-scroll-section 配合 JS） ===== */
.page-faq [data-scroll-section].section-active {
  position: relative;
}
.page-faq [data-scroll-section].section-active::before {
  content: '';
  position: absolute;
  top: 0;
  left: -8px;
  bottom: 0;
  width: 3px;
  background: var(--color-primary, #D4AF37);
  border-radius: 4px;
  opacity: 0.6;
  pointer-events: none;
}
@media (min-width: 1024px) {
  .page-faq [data-scroll-section].section-active::before {
    left: -16px;
  }
}

/* ===== 搜索实时过滤（data-faq-search / data-faq-item 配合 JS） ===== */
.page-faq [data-faq-item].faq-hidden {
  display: none;
}

/* ===== 等宽辅助 ===== */
.page-faq .mono {
  font-family: var(--font-mono, 'JetBrains Mono', 'Courier New', monospace);
}

/* ===== 标签复用 ===== */
.page-faq .tag-gold {
  background: rgba(212,175,55,0.12);
  color: var(--color-primary, #D4AF37);
  border: 1px solid rgba(212,175,55,0.25);
}
.page-faq .tag-red {
  background: rgba(198,40,40,0.15);
  color: var(--color-secondary, #C62828);
  border: 1px solid rgba(198,40,40,0.25);
}

/* ===== 响应式微调 ===== */
@media (max-width: 400px) {
  .page-faq__title {
    font-size: 1.8rem;
  }
  .page-faq__card-summary {
    padding: 16px 18px;
    font-size: 0.92rem;
  }
  .page-faq__card-answer {
    padding: 0 18px 16px 18px;
    padding-top: 14px;
    font-size: 0.9rem;
  }
  .page-faq__section-title {
    font-size: 1.3rem;
    gap: 10px;
  }
  .page-faq__index {
    padding: 18px 16px;
  }
  .page-faq__quick-tags {
    gap: 8px;
  }
  .page-faq__tag-item {
    font-size: 0.82rem;
    padding: 5px 14px;
  }
  .page-faq__search-input {
    padding: 12px 0;
    font-size: 0.92rem;
  }
}