.page-faq {
  --faq-bg-card: #ffffff;
  --faq-border-heavy: 4px solid var(--color-primary, #004d40);
  --faq-shadow-card: 8px 8px 0 rgba(0, 45, 30, 0.12);
  --faq-radius-sm: 2px;
  --faq-transition: 0.3s ease;
  --faq-index-width: 220px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
  background: var(--color-bg-light, #f5f5f0);
  font-family: var(--font-body, Georgia, serif);
  color: var(--color-text, #1a1a1a);
  position: relative;
}

/* 面包屑 */
.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
  padding: 0.5rem 0;
  border-bottom: 2px solid var(--color-primary, #004d40);
}

.page-faq .faq-breadcrumb-link {
  color: var(--color-secondary, #cfa144);
  text-decoration: none;
  font-weight: bold;
  transition: opacity var(--faq-transition);
}

.page-faq .faq-breadcrumb-link:hover {
  opacity: 0.7;
}

.page-faq .faq-breadcrumb-sep {
  color: var(--color-accent, #8b2252);
  font-size: 0.5rem;
}

.page-faq .faq-breadcrumb-current {
  color: var(--color-primary, #004d40);
  font-weight: bold;
}

/* Hero区 */
.page-faq .faq-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: var(--color-bg-dark, #00251a);
  padding: 2rem 2rem 2rem 2.5rem;
  margin-bottom: 2.5rem;
  border: var(--faq-border-heavy);
  box-shadow: var(--faq-shadow-card);
  position: relative;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(207,161,68,0.04) 12px, rgba(207,161,68,0.04) 24px);
  pointer-events: none;
}

.page-faq .faq-hero-text {
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-title {
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: 2.2rem;
  font-weight: bold;
  color: var(--color-secondary, #cfa144);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 0.25rem;
  line-height: 1.1;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.3);
}

.page-faq .faq-hero-desc {
  font-family: var(--font-body, Georgia, serif);
  font-size: 0.95rem;
  color: var(--color-text-light, #ffffff);
  opacity: 0.85;
  margin: 0 0 1.25rem;
}

.page-faq .faq-search-wrap {
  position: relative;
  max-width: 420px;
}

.page-faq .faq-search {
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.6rem;
  font-family: var(--font-body, Georgia, serif);
  font-size: 0.95rem;
  color: var(--color-text, #1a1a1a);
  background: var(--color-bg-light, #f5f5f0);
  border: 3px solid var(--color-primary, #004d40);
  outline: none;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}

.page-faq .faq-search:focus {
  border-color: var(--color-secondary, #cfa144);
  box-shadow: 0 0 0 3px rgba(207,161,68,0.25);
}

.page-faq .faq-search::placeholder {
  color: #888;
  font-style: italic;
}

.page-faq .faq-search-icon {
  position: absolute;
  left: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--color-secondary, #cfa144);
  font-weight: bold;
  pointer-events: none;
}

.page-faq .faq-hero-img {
  flex-shrink: 0;
  width: 200px;
  height: 100px;
  object-fit: cover;
  border: 3px solid var(--color-secondary, #cfa144);
  box-shadow: 4px 4px 0 rgba(0,0,0,0.25);
  position: relative;
  z-index: 1;
}

/* 主体：侧边索引 + 内容 */
.page-faq .faq-body {
  display: flex;
  gap: 2rem;
  position: relative;
}

/* 索引侧边栏 */
.page-faq .faq-index {
  flex-shrink: 0;
  width: var(--faq-index-width);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--color-bg-dark, #00251a);
  padding: 1.25rem 0.75rem;
  border: var(--faq-border-heavy);
  box-shadow: var(--faq-shadow-card);
  align-self: flex-start;
  position: sticky;
  top: 1.5rem;
}

.page-faq .faq-index-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-light, #ffffff);
  background: transparent;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--faq-transition), border-color var(--faq-transition), color var(--faq-transition);
  text-align: left;
  position: relative;
}

.page-faq .faq-index-btn .faq-index-num {
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: 1.1rem;
  color: var(--color-secondary, #cfa144);
  opacity: 0.7;
  min-width: 1.8rem;
  transition: opacity var(--faq-transition);
}

.page-faq .faq-index-btn .faq-index-label {
  font-weight: bold;
}

.page-faq .faq-index-btn:hover {
  background: rgba(207,161,68,0.08);
  border-color: rgba(207,161,68,0.25);
}

.page-faq .faq-index-btn[aria-selected="true"] {
  background: rgba(207,161,68,0.15);
  border-left: 4px solid var(--color-secondary, #cfa144);
  color: var(--color-secondary, #cfa144);
}

.page-faq .faq-index-btn[aria-selected="true"] .faq-index-num {
  opacity: 1;
  color: var(--color-secondary, #cfa144);
}

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

.page-faq .faq-panel {
  animation: faqPanelFade 0.35s ease;
}

@keyframes faqPanelFade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .faq-panel-heading {
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--color-primary, #004d40);
  margin: 0 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 4px solid var(--color-secondary, #cfa144);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.page-faq .faq-panel-img {
  width: 100%;
  max-width: 400px;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 3px solid var(--color-primary, #004d40);
  box-shadow: 6px 6px 0 rgba(0,45,30,0.1);
  margin: 0 0 1.5rem;
  display: block;
}

/* 手风琴列表 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-item {
  background: var(--faq-bg-card);
  border: 2px solid var(--color-primary, #004d40);
  box-shadow: 4px 4px 0 rgba(0,45,30,0.08);
  transition: box-shadow var(--faq-transition);
}

.page-faq .faq-item:hover {
  box-shadow: 6px 6px 0 rgba(0,45,30,0.12);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem 1.25rem;
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: 1rem;
  font-weight: bold;
  color: var(--color-primary, #004d40);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background var(--faq-transition), color var(--faq-transition);
  position: relative;
}

.page-faq .faq-question::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 1.25rem;
  right: 1.25rem;
  height: 1px;
  background: var(--color-primary, #004d40);
  opacity: 0.15;
}

.page-faq .faq-item:last-child .faq-question::after {
  display: none;
}

.page-faq .faq-question:hover {
  background: rgba(0,77,64,0.04);
}

.page-faq .faq-question[aria-expanded="true"] {
  background: var(--color-primary, #004d40);
  color: var(--color-text-light, #ffffff);
}

.page-faq .faq-question[aria-expanded="true"]::after {
  opacity: 0;
}

.page-faq .faq-q-text {
  flex: 1;
  padding-right: 1rem;
}

.page-faq .faq-q-icon {
  flex-shrink: 0;
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-secondary, #cfa144);
  transition: transform var(--faq-transition);
}

.page-faq .faq-question[aria-expanded="true"] .faq-q-icon {
  transform: rotate(45deg);
  color: var(--color-secondary, #cfa144);
}

.page-faq .faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-family: var(--font-body, Georgia, serif);
  font-size: 0.95rem;
  color: var(--color-text, #1a1a1a);
  line-height: 1.7;
  background: var(--faq-bg-card);
  border-top: none;
}

.page-faq .faq-answer p {
  margin: 0.75rem 0;
}

.page-faq .faq-answer p:first-child {
  margin-top: 0.25rem;
}

.page-faq .faq-link {
  color: var(--color-secondary, #cfa144);
  text-decoration: underline;
  font-weight: bold;
  transition: opacity var(--faq-transition);
}

.page-faq .faq-link:hover {
  opacity: 0.75;
}

/* 筛选高亮 */
.page-faq .faq-item[data-faq-hidden] {
  display: none;
}

/* 桌面端适配 */
@media (min-width: 768px) {
  .page-faq {
    padding: 1.5rem 2rem 4rem;
  }

  .page-faq .faq-hero {
    padding: 2.5rem 3rem;
  }

  .page-faq .faq-hero-title {
    font-size: 2.8rem;
  }

  .page-faq .faq-hero-desc {
    font-size: 1.05rem;
  }

  .page-faq .faq-index {
    width: var(--faq-index-width);
    padding: 1.5rem 1rem;
  }

  .page-faq .faq-index-btn {
    font-size: 0.95rem;
    padding: 0.9rem 1rem;
  }

  .page-faq .faq-panel-heading {
    font-size: 1.8rem;
  }

  .page-faq .faq-question {
    font-size: 1.05rem;
    padding: 1.1rem 1.5rem;
  }

  .page-faq .faq-answer {
    padding: 0 1.5rem 1.5rem;
    font-size: 1rem;
  }
}

/* 大屏增强 */
@media (min-width: 1024px) {
  .page-faq {
    padding: 2rem 3rem 5rem;
  }

  .page-faq .faq-hero-title {
    font-size: 3.2rem;
  }

  .page-faq .faq-index {
    width: 250px;
  }
}

/* 窄屏：索引转为水平标签 */
@media (max-width: 767px) {
  .page-faq .faq-body {
    flex-direction: column;
    gap: 1.25rem;
  }

  .page-faq .faq-index {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.4rem;
    padding: 0.75rem;
    position: static;
    top: auto;
    border-width: 3px;
  }

  .page-faq .faq-index-btn {
    flex: 1 0 auto;
    width: auto;
    min-width: 0;
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
    justify-content: center;
    border-left: none;
    border-bottom: 3px solid transparent;
  }

  .page-faq .faq-index-btn .faq-index-num {
    display: none;
  }

  .page-faq .faq-index-btn[aria-selected="true"] {
    border-left: none;
    border-bottom-color: var(--color-secondary, #cfa144);
    background: rgba(207,161,68,0.12);
  }

  .page-faq .faq-hero {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem 1.25rem;
    gap: 1rem;
  }

  .page-faq .faq-hero-img {
    width: 120px;
    height: 60px;
    align-self: flex-start;
  }

  .page-faq .faq-hero-title {
    font-size: 1.6rem;
  }

  .page-faq .faq-hero-desc {
    font-size: 0.85rem;
  }

  .page-faq .faq-search-wrap {
    max-width: 100%;
  }

  .page-faq .faq-panel-heading {
    font-size: 1.3rem;
  }

  .page-faq .faq-panel-img {
    max-width: 100%;
  }

  .page-faq .faq-question {
    font-size: 0.9rem;
    padding: 0.85rem 1rem;
  }

  .page-faq .faq-answer {
    padding: 0 1rem 1rem;
    font-size: 0.9rem;
  }
}

/* 极端小屏保护 */
@media (max-width: 400px) {
  .page-faq {
    padding: 0.75rem 0.5rem 2rem;
  }

  .page-faq .faq-hero {
    padding: 1rem 0.75rem;
  }

  .page-faq .faq-hero-title {
    font-size: 1.3rem;
  }

  .page-faq .faq-index-btn {
    font-size: 0.7rem;
    padding: 0.4rem 0.5rem;
  }
}