.page-faq {
  --faq-gold-line: var(--color-gold, #D4AF37);
  --faq-deep-blue: var(--color-deep-blue, #003366);
  --faq-red: var(--color-red, #E32636);
  --faq-electric: var(--color-electric-blue, #00BFFF);
  --faq-bg-grid: var(--color-light-gray, #F5F5F5);
  --faq-border-color: var(--color-border, #E0E0E0);
  --faq-shadow: var(--shadow-strong, 6px 6px 0 rgba(0,0,0,0.12));
  --faq-radius: var(--radius-sm, 4px);
}

/* ===== 首屏英雄区 ===== */
.page-faq .faq-hero {
  background: var(--color-white, #FFFFFF);
  border-bottom: var(--border-thick, 4px) solid var(--faq-gold-line);
  position: relative;
  overflow: hidden;
  padding-top: var(--space-2xl, 48px);
  padding-bottom: var(--space-2xl, 48px);
}
.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,51,102,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,51,102,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}
.page-faq .faq-hero > .container {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero__inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl, 32px);
  align-items: center;
  margin-top: var(--space-lg, 24px);
}
.page-faq .faq-hero__text {
  flex: 1 1 320px;
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.1;
  color: var(--faq-deep-blue);
  margin: 0 0 var(--space-md, 16px);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}
.page-faq .faq-hero__title::after {
  content: 'FAQ';
  position: absolute;
  top: 0;
  right: -1.2em;
  font-size: 0.35em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  color: var(--faq-gold-line);
  font-family: var(--font-accent, 'Courier New', monospace);
  letter-spacing: 0.1em;
  opacity: 0.7;
}
.page-faq .faq-hero__subtitle {
  font-size: var(--space-lg, 24px);
  line-height: 1.6;
  color: var(--color-dark, #333333);
  max-width: 600px;
  margin: 0 0 var(--space-lg, 24px);
}
.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm, 8px);
}
.page-faq .faq-hero__image {
  flex: 1 1 280px;
  max-width: 600px;
}
.page-faq .faq-hero__img {
  width: 100%;
  height: auto;
  display: block;
  border: var(--border-medium, 2px) solid var(--faq-border-color);
  box-shadow: var(--faq-shadow);
}

/* ===== 搜索栏 ===== */
.page-faq .faq-search-bar {
  background: var(--faq-bg-grid);
  padding-top: var(--space-lg, 24px);
  padding-bottom: var(--space-lg, 24px);
  border-bottom: var(--border-thin, 1px) solid var(--faq-border-color);
}
.page-faq .faq-search-bar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-md, 16px);
  background: var(--color-white, #FFFFFF);
  border: var(--border-medium, 2px) solid var(--faq-deep-blue);
  padding: var(--space-sm, 8px) var(--space-md, 16px);
  box-shadow: var(--shadow-medium, 4px 4px 0 rgba(0,0,0,0.08));
  max-width: 640px;
  margin: 0 auto;
}
.page-faq .faq-search-bar__icon {
  flex-shrink: 0;
  color: var(--faq-deep-blue);
}
.page-faq .faq-search-bar__input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  padding: var(--space-sm, 8px) 0;
  outline: none;
  color: var(--color-dark, #333333);
  min-width: 0;
}
.page-faq .faq-search-bar__input::placeholder {
  color: #999;
}
.page-faq .faq-search-bar__hint {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--color-dark, #333333);
  background: var(--faq-bg-grid);
  padding: 2px 10px;
  border-radius: var(--faq-radius);
  font-family: var(--font-accent, 'Courier New', monospace);
  white-space: nowrap;
}

/* ===== 分类列表 ===== */
.page-faq .faq-list {
  padding-top: var(--space-3xl, 64px);
  padding-bottom: var(--space-4xl, 96px);
  background: var(--color-white, #FFFFFF);
}
.page-faq .faq-category {
  margin-bottom: var(--space-3xl, 64px);
  border-left: var(--border-thick, 4px) solid var(--faq-gold-line);
  padding-left: var(--space-lg, 24px);
}
.page-faq .faq-category__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-md, 16px);
  margin-bottom: var(--space-xl, 32px);
  position: relative;
}
.page-faq .faq-category__index {
  font-family: var(--font-accent, 'Courier New', monospace);
  font-size: 1.2rem;
  color: var(--faq-electric);
  font-weight: 700;
  opacity: 0.6;
  letter-spacing: 0.05em;
}
.page-faq .faq-category__title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--faq-deep-blue);
  margin: 0;
  line-height: 1.2;
  text-transform: uppercase;
}
.page-faq .faq-category__badge {
  margin-left: auto;
  align-self: center;
}
.page-faq .faq-category__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-md, 16px);
}

/* ===== 单个问题（手风琴） ===== */
.page-faq .faq-item {
  background: var(--color-white, #FFFFFF);
  border: var(--border-medium, 2px) solid var(--faq-border-color);
  box-shadow: var(--shadow-light, 2px 2px 0 rgba(0,0,0,0.04));
  transition: box-shadow var(--transition-base, 0.3s ease), border-color var(--transition-base, 0.3s ease);
  overflow: hidden;
}
.page-faq .faq-item[open] {
  border-color: var(--faq-deep-blue);
  box-shadow: var(--shadow-strong, 6px 6px 0 rgba(0,0,0,0.12));
}
.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: var(--space-md, 16px);
  padding: var(--space-lg, 24px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--color-dark, #333333);
  transition: background var(--transition-fast, 0.2s ease);
  user-select: none;
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary:hover {
  background: var(--faq-bg-grid);
}
.page-faq .faq-item__q {
  flex: 1;
  font-weight: 600;
  color: var(--faq-deep-blue);
}
.page-faq .faq-item__toggle {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--faq-gold-line);
  transition: transform var(--transition-base, 0.3s ease);
}
.page-faq .faq-item[open] .faq-item__toggle {
  transform: rotate(180deg);
  color: var(--faq-deep-blue);
}
.page-faq .faq-item__body {
  padding: 0 var(--space-lg, 24px) var(--space-lg, 24px);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-dark, #333333);
  border-top: var(--border-thin, 1px) solid var(--faq-border-color);
  background: rgba(0,51,102,0.02);
  animation: faqFadeIn 0.35s ease;
}
.page-faq .faq-item__body p {
  margin: var(--space-md, 16px) 0;
}
.page-faq .faq-item__body a {
  color: var(--faq-deep-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast, 0.2s ease);
}
.page-faq .faq-item__body a:hover {
  color: var(--faq-red);
}
@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 底部更多 ===== */
.page-faq .faq-more {
  text-align: center;
  padding-top: var(--space-2xl, 48px);
  border-top: var(--border-thick, 4px) solid var(--faq-gold-line);
  margin-top: var(--space-2xl, 48px);
}
.page-faq .faq-more__text {
  font-size: 1.2rem;
  color: var(--color-dark, #333333);
  margin: 0 0 var(--space-lg, 24px);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
}

/* ===== 标签变体微调 ===== */
.page-faq .tag--blue {
  background: var(--faq-deep-blue);
  color: #fff;
  border: none;
}
.page-faq .tag--red {
  background: var(--faq-red);
  color: #fff;
  border: none;
}
.page-faq .tag--gold {
  background: var(--faq-gold-line);
  color: #fff;
  border: none;
}

/* ===== 移动端优先适配 ===== */
@media (max-width: 767px) {
  .page-faq .faq-hero {
    padding-top: var(--space-lg, 24px);
    padding-bottom: var(--space-lg, 24px);
  }
  .page-faq .faq-hero__inner {
    flex-direction: column;
  }
  .page-faq .faq-hero__image {
    max-width: 100%;
    order: -1;
  }
  .page-faq .faq-hero__title::after {
    position: static;
    writing-mode: horizontal-tb;
    font-size: 0.6em;
    display: inline-block;
    margin-left: 6px;
    vertical-align: super;
  }
  .page-faq .faq-hero__subtitle {
    font-size: 1rem;
  }
  .page-faq .faq-search-bar__inner {
    flex-wrap: wrap;
    padding: var(--space-sm, 8px);
  }
  .page-faq .faq-search-bar__hint {
    width: 100%;
    text-align: center;
  }
  .page-faq .faq-category {
    padding-left: var(--space-md, 16px);
    border-left-width: 3px;
  }
  .page-faq .faq-category__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm, 8px);
  }
  .page-faq .faq-category__badge {
    margin-left: 0;
  }
  .page-faq .faq-item__summary {
    padding: var(--space-md, 16px);
    font-size: 0.95rem;
  }
  .page-faq .faq-item__body {
    padding: 0 var(--space-md, 16px) var(--space-md, 16px);
    font-size: 0.95rem;
  }
  .page-faq .faq-more {
    padding-top: var(--space-xl, 32px);
    margin-top: var(--space-xl, 32px);
  }
}

/* ===== 桌面增强 ===== */
@media (min-width: 768px) {
  .page-faq .faq-category__items {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md, 16px);
  }
  .page-faq .faq-item {
    break-inside: avoid;
  }
  .page-faq .faq-item__summary {
    padding: var(--space-lg, 24px) var(--space-xl, 32px);
  }
  .page-faq .faq-item__body {
    padding: 0 var(--space-xl, 32px) var(--space-lg, 24px);
  }
  .page-faq .faq-hero__title {
    font-size: clamp(2.6rem, 5vw, 3.8rem);
  }
}
@media (min-width: 1024px) {
  .page-faq .faq-category__items {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg, 24px);
  }
}