/* ===== 问答中心专属样式 .page-faq ===== */
.page-faq {
  --faq-hero-height: 300px;
  --faq-sidebar-width: 220px;
  --faq-gap: 1.5rem;
  --faq-badge-radius: 20px;
  --faq-item-radius: 12px;
  --faq-transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  background: var(--color-background-light, #F5F7FA);
  color: var(--color-text-dark, #0A1F44);
  font-family: var(--font-base, 'Inter', system-ui, sans-serif);
  line-height: 1.6;
}

/* Hero 区 */
.page-faq__hero {
  position: relative;
  height: var(--faq-hero-height);
  overflow: hidden;
  background: var(--color-primary, #0A1F44);
}
.page-faq__hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.45;
}
.page-faq__hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,31,68,0.88) 0%, rgba(10,31,68,0.40) 100%);
  pointer-events: none;
}
.page-faq__hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  padding-bottom: 2rem;
}
.page-faq__breadcrumb {
  margin-bottom: 0.75rem;
}
.page-faq__breadcrumb .breadcrumb__link {
  color: var(--color-accent, #00FF88);
  font-size: 0.875rem;
  text-decoration: none;
  transition: opacity var(--faq-transition);
}
.page-faq__breadcrumb .breadcrumb__link:hover {
  opacity: 0.8;
}
.page-faq__breadcrumb .breadcrumb__sep {
  color: var(--color-text-secondary, #A0B4D0);
  margin: 0 0.5rem;
  font-size: 0.875rem;
}
.page-faq__breadcrumb .breadcrumb__current {
  color: var(--color-text-primary, #FFFFFF);
  font-size: 0.875rem;
  font-weight: 500;
}
.page-faq__title {
  font-family: var(--font-heading, 'Inter', system-ui, sans-serif);
  font-weight: 800;
  font-style: italic;
  font-size: 3rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text-primary, #FFFFFF);
  margin: 0 0 0.5rem;
}
.page-faq__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary, #A0B4D0);
  max-width: 560px;
  margin: 0;
}

/* 工具栏 */
.page-faq__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  padding-top: 2rem;
  padding-bottom: 1.5rem;
}
.page-faq__search-wrap {
  position: relative;
  flex: 1 1 280px;
  max-width: 400px;
}
.page-faq__search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary, #A0B4D0);
  pointer-events: none;
}
.page-faq__search-input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  font-family: var(--font-base, 'Inter', system-ui, sans-serif);
  font-size: 1rem;
  border: 1.5px solid var(--color-divider, #2A4A7A);
  border-radius: var(--border-radius, 12px);
  background: var(--color-text-primary, #FFFFFF);
  color: var(--color-text-dark, #0A1F44);
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  outline: none;
}
.page-faq__search-input::placeholder {
  color: var(--color-text-secondary, #A0B4D0);
}
.page-faq__search-input:focus {
  border-color: var(--color-accent, #00FF88);
  box-shadow: 0 0 0 3px rgba(0,255,136,0.15);
}
.page-faq__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-faq__filter-btn {
  font-family: var(--font-base, 'Inter', system-ui, sans-serif);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--color-divider, #2A4A7A);
  border-radius: var(--border-radius-lg, 20px);
  background: transparent;
  color: var(--color-text-secondary, #A0B4D0);
  cursor: pointer;
  transition: all var(--faq-transition);
  white-space: nowrap;
}
.page-faq__filter-btn:hover {
  border-color: var(--color-accent, #00FF88);
  color: var(--color-accent, #00FF88);
}
.page-faq__filter-btn.is-active {
  background: var(--color-accent, #00FF88);
  border-color: var(--color-accent, #00FF88);
  color: var(--color-primary, #0A1F44);
}

/* 主区域：侧边栏 + 内容 */
.page-faq__main {
  display: flex;
  gap: var(--faq-gap);
  padding-top: 0.5rem;
  padding-bottom: 3rem;
  align-items: flex-start;
}
.page-faq__sidebar {
  flex: 0 0 var(--faq-sidebar-width);
  position: sticky;
  top: calc(var(--header-height, 64px) + 1rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-faq__sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.page-faq__sidebar-link {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-dark, #0A1F44);
  text-decoration: none;
  border-radius: var(--border-radius-sm, 6px);
  border-left: 3px solid transparent;
  transition: all var(--faq-transition);
}
.page-faq__sidebar-link:hover,
.page-faq__sidebar-link:focus-visible {
  background: rgba(0,255,136,0.08);
  border-left-color: var(--color-accent, #00FF88);
  color: var(--color-primary, #0A1F44);
}
.page-faq__sidebar-deco {
  display: block;
}
.page-faq__sidebar-deco-img {
  width: 100%;
  height: auto;
  max-width: 100px;
  opacity: 0.25;
  margin: 0 auto;
  display: block;
}

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

/* 分类 */
.page-faq__category {
  margin-bottom: 2.5rem;
  scroll-margin-top: calc(var(--header-height, 64px) + 1rem);
}
.page-faq__category-title {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-secondary, #A0B4D0);
}
.page-faq__category-badge {
  display: inline-block;
  padding: 0.25rem 1rem;
  font-family: var(--font-heading, 'Inter', system-ui, sans-serif);
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: var(--faq-badge-radius);
  background: var(--cat-color, #00FF88);
  color: var(--color-primary, #0A1F44);
  letter-spacing: 0.01em;
  flex-shrink: 0;
}
.page-faq__category-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary, #A0B4D0);
}

/* 手风琴列表 */
.page-faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-faq__item {
  background: var(--color-text-primary, #FFFFFF);
  border: 1px solid var(--color-divider, #2A4A7A);
  border-radius: var(--faq-item-radius);
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0,0,0,0.08));
  transition: box-shadow var(--faq-transition), border-color var(--faq-transition);
  overflow: hidden;
}
.page-faq__item[open] {
  border-color: var(--color-accent, #00FF88);
  box-shadow: var(--shadow-md, 0 4px 20px rgba(0,0,0,0.12));
}
.page-faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.125rem 1.25rem;
  font-family: var(--font-heading, 'Inter', system-ui, sans-serif);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-primary, #0A1F44);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color var(--faq-transition);
}
.page-faq__question::-webkit-details-marker {
  display: none;
}
.page-faq__question::marker {
  display: none;
  content: '';
}
.page-faq__question:hover {
  color: var(--color-accent, #00FF88);
}
.page-faq__q-text {
  flex: 1;
}
.page-faq__q-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-accent, #00FF88);
  transition: transform var(--faq-transition);
}
.page-faq__item[open] .page-faq__q-icon {
  transform: rotate(90deg);
}
.page-faq__answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-text-dark, #0A1F44);
  line-height: 1.7;
  border-top: 1px solid var(--color-divider, #2A4A7A);
  padding-top: 1rem;
  margin-top: -0.25rem;
}
.page-faq__answer p {
  margin: 0 0 0.75rem;
}
.page-faq__answer p:last-child {
  margin-bottom: 0;
}
.page-faq__learn-more {
  display: inline-block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-accent, #00FF88);
  text-decoration: none;
  border-bottom: 1.5px solid transparent;
  transition: border-color var(--faq-transition);
}
.page-faq__learn-more:hover {
  border-bottom-color: var(--color-accent, #00FF88);
}
.page-faq__contact-list {
  margin: 0.5rem 0;
  padding-left: 1.25rem;
  list-style: disc;
}
.page-faq__contact-list li {
  margin-bottom: 0.25rem;
}
.page-faq__contact-link {
  color: var(--color-accent, #00FF88);
  text-decoration: none;
  font-weight: 500;
}
.page-faq__contact-link:hover {
  text-decoration: underline;
}
.page-faq__contact-note {
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #A0B4D0);
  margin-top: 0.5rem;
}

/* 底部CTA */
.page-faq__bottom-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1rem;
  padding-bottom: 4rem;
  text-align: center;
}
.page-faq__bottom-text {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-dark, #0A1F44);
  margin: 0;
}
.page-faq__bottom-btn {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .page-faq__hero {
    height: 240px;
  }
  .page-faq__title {
    font-size: 2rem;
  }
  .page-faq__subtitle {
    font-size: 0.9375rem;
    max-width: 100%;
  }
  .page-faq__toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  .page-faq__search-wrap {
    max-width: 100%;
  }
  .page-faq__filters {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.25rem;
  }
  .page-faq__filters::-webkit-scrollbar {
    display: none;
  }
  .page-faq__filter-btn {
    flex-shrink: 0;
  }
  .page-faq__sidebar {
    display: none;
  }
  .page-faq__main {
    flex-direction: column;
  }
  .page-faq__category-title {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .page-faq__category-desc {
    width: 100%;
    font-size: 0.875rem;
  }
  .page-faq__question {
    padding: 1rem;
    font-size: 0.9375rem;
  }
  .page-faq__answer {
    padding: 0 1rem 1rem;
    font-size: 0.875rem;
  }
  .page-faq__bottom-cta {
    padding-bottom: 3rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .page-faq__sidebar {
    flex-basis: 160px;
  }
  .page-faq__title {
    font-size: 2.5rem;
  }
}

/* 容器复用 — 确保内部定义不污染全局 */
.page-faq .container {
  max-width: var(--max-width, 1200px);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.page-faq .btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent, #00FF88);
  color: var(--color-primary, #0A1F44);
  font-family: var(--font-base, 'Inter', system-ui, sans-serif);
  font-weight: 700;
  border: none;
  border-radius: var(--border-radius, 12px);
  cursor: pointer;
  transition: transform var(--faq-transition), box-shadow var(--faq-transition);
  text-decoration: none;
}
.page-faq .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md, 0 4px 20px rgba(0,0,0,0.15));
}
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.page-faq .breadcrumb__link,
.page-faq .breadcrumb__sep,
.page-faq .breadcrumb__current {
  font-size: 0.875rem;
}
</style>
```

.page-faq {
  --cat-color: transparent;
}