.page-faq {
  --faq-ice-blue: #1B2F4F;
  --faq-card-radius: 6px;
  --faq-transition: 0.3s ease;
  display: block;
  width: 100%;
  background-color: var(--color-primary-bg, #0A192F);
  color: var(--color-text-body, #E0E0E0);
  font-family: var(--font-body, 'Inter', sans-serif);
}

/* ── 面包屑 ── */
.page-faq .breadcrumb {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  font-weight: var(--fw-special, 500);
  letter-spacing: var(--ls-special, 0.05em);
  color: var(--color-text-muted, #8899AA);
}
.page-faq .breadcrumb-link {
  color: var(--color-accent-cyan, #00E5FF);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}
.page-faq .breadcrumb-link:hover {
  color: var(--color-accent-gold, #FFD700);
}
.page-faq .breadcrumb-sep {
  margin: 0 0.5rem;
  color: var(--color-divider, #2A3F5E);
}
.page-faq .breadcrumb-current {
  color: var(--color-primary-text, #FFFFFF);
  font-weight: var(--fw-heading, 700);
}

/* ── 顶部横幅 ── */
.page-faq .faq-hero {
  position: relative;
  max-width: var(--max-width, 1200px);
  margin: 0 auto 1rem;
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  box-shadow: var(--shadow-card, 0 2px 12px rgba(0,0,0,0.25));
}
.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
}
.page-faq .faq-hero-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(10, 25, 47, 0.75);
  padding: 1rem;
  text-align: center;
}
.page-faq .faq-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: var(--fs-heading-xl, clamp(2.75rem, 6vw, 6rem));
  font-weight: var(--fw-heading, 700);
  letter-spacing: var(--ls-heading, -0.02em);
  color: var(--color-accent-gold, #FFD700);
  margin: 0 0 0.25rem;
  line-height: 1.1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
}
.page-faq .faq-subtitle {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: var(--fs-heading-sm, clamp(1.125rem, 1.8vw, 1.5rem));
  font-weight: var(--fw-body, 400);
  color: var(--color-accent-cyan, #00E5FF);
  margin: 0;
  letter-spacing: 0.03em;
}

/* ── 区域 ── */
.page-faq .faq-section {
  padding: 2.5rem 1rem;
}
.page-faq .faq-section--dark {
  background-color: var(--color-primary-bg, #0A192F);
}
.page-faq .faq-section--light {
  background-color: var(--faq-ice-blue);
}
.page-faq .faq-section .container {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
}
.page-faq .section-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: var(--fs-heading-lg, clamp(2rem, 4vw, 3.5rem));
  font-weight: var(--fw-heading, 700);
  letter-spacing: var(--ls-heading, -0.02em);
  color: var(--color-accent-gold, #FFD700);
  margin: 0 0 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent-gold, #FFD700);
  display: inline-block;
}
.page-faq .faq-section-desc {
  font-size: var(--fs-body, clamp(0.9375rem, 1.2vw, 1rem));
  color: var(--color-text-muted, #8899AA);
  margin: 0 0 1.5rem;
  max-width: 640px;
  line-height: var(--lh-body, 1.6);
}

/* ── 卡片网格 ── */
.page-faq .faq-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── 单个卡片 (details/summary) ── */
.page-faq .faq-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-divider, #2A3F5E);
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  transition: border-color var(--transition-base, 0.35s ease), box-shadow var(--transition-base, 0.35s ease), transform var(--transition-fast, 0.2s ease);
  width: 100%;
}
.page-faq .faq-card:hover {
  border-color: var(--color-accent-gold, #FFD700);
  box-shadow: 0 0 0 1px var(--color-accent-gold, #FFD700), var(--shadow-card, 0 2px 12px rgba(0,0,0,0.25));
  transform: scale(1.01);
}
.page-faq .faq-card[open] {
  border-color: var(--color-accent-cyan, #00E5FF);
  box-shadow: 0 0 0 1px var(--color-accent-cyan, #00E5FF), var(--shadow-card, 0 2px 12px rgba(0,0,0,0.25));
}
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-size: var(--fs-heading-sm, clamp(1.125rem, 1.8vw, 1.5rem));
  font-weight: var(--fw-special, 500);
  color: var(--color-primary-text, #FFFFFF);
  user-select: none;
  transition: background var(--transition-fast, 0.2s ease);
}
.page-faq .faq-question::-webkit-details-marker {
  display: none;
}
.page-faq .faq-question:hover {
  background: rgba(255, 215, 0, 0.06);
}
.page-faq .faq-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-accent-gold, #FFD700);
  transition: color var(--transition-fast, 0.2s ease);
}
.page-faq .faq-card[open] .faq-icon {
  color: var(--color-accent-cyan, #00E5FF);
}
.page-faq .faq-question-text {
  flex: 1;
  line-height: 1.3;
}
.page-faq .faq-toggle {
  flex-shrink: 0;
  font-size: 1.5rem;
  font-weight: var(--fw-heading, 700);
  color: var(--color-accent-gold, #FFD700);
  transition: transform var(--faq-transition);
  line-height: 1;
}
.page-faq .faq-card[open] .faq-toggle {
  transform: rotate(45deg);
  color: var(--color-accent-cyan, #00E5FF);
}
.page-faq .faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: var(--fs-body, clamp(0.9375rem, 1.2vw, 1rem));
  line-height: var(--lh-body, 1.6);
  color: var(--color-text-body, #E0E0E0);
  border-top: 1px solid var(--color-divider, #2A3F5E);
  margin-top: 0;
  animation: faq-fade-in 0.3s ease;
}
@keyframes faq-fade-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-faq .faq-answer p {
  margin: 0.75rem 0;
}
.page-faq .faq-answer p:first-child {
  margin-top: 0;
}
.page-faq .faq-inlink {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--color-accent-cyan, #00E5FF);
  text-decoration: none;
  font-weight: var(--fw-special, 500);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast, 0.2s ease), color var(--transition-fast, 0.2s ease);
}
.page-faq .faq-inlink:hover {
  color: var(--color-accent-gold, #FFD700);
  border-bottom-color: var(--color-accent-gold, #FFD700);
}

/* ── 联系卡片内列表 ── */
.page-faq .faq-contact-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0;
}
.page-faq .faq-contact-list li {
  padding: 0.25rem 0;
  font-size: var(--fs-body, clamp(0.9375rem, 1.2vw, 1rem));
}
.page-faq .faq-contact-list a {
  color: var(--color-accent-cyan, #00E5FF);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}
.page-faq .faq-contact-list a:hover {
  color: var(--color-accent-gold, #FFD700);
}
.page-faq .faq-contact-note {
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 229, 255, 0.08);
  border-left: 3px solid var(--color-accent-cyan, #00E5FF);
  border-radius: 0 var(--faq-card-radius) var(--faq-card-radius) 0;
  font-weight: var(--fw-special, 500);
  color: var(--color-primary-text, #FFFFFF);
}

/* ── 联系支持区域配图 ── */
.page-faq .faq-contact-visual {
  margin-top: 2rem;
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  box-shadow: var(--shadow-card, 0 2px 12px rgba(0,0,0,0.25));
}
.page-faq .faq-contact-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
}

/* ── 桌面端：错位布局 ── */
@media (min-width: 768px) {
  .page-faq .faq-section {
    padding: 3.5rem 2rem;
  }
  .page-faq .faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
  }
  .page-faq .faq-card--left {
    grid-column: 1 / 2;
    margin-right: 1rem;
  }
  .page-faq .faq-card--right {
    grid-column: 2 / 3;
    margin-left: 1rem;
  }
  .page-faq .faq-card {
    max-width: 100%;
  }
  .page-faq .faq-hero {
    margin: 0 auto 2rem;
    border-radius: 8px;
  }
  .page-faq .faq-hero-img {
    max-height: 300px;
  }
  .page-faq .breadcrumb {
    padding: 1rem 2rem 0.5rem;
  }
  .page-faq .faq-contact-visual {
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-section {
    padding: 4rem 2rem;
  }
  .page-faq .faq-card--left {
    margin-right: 2rem;
  }
  .page-faq .faq-card--right {
    margin-left: 2rem;
  }
  .page-faq .faq-question {
    padding: 1.25rem 1.5rem;
    font-size: var(--fs-heading-md, clamp(1.5rem, 3vw, 2.25rem));
  }
  .page-faq .faq-answer {
    padding: 0 1.5rem 1.5rem;
  }
}

/* ── 宽屏内容约束 ── */
@media (min-width: 1200px) {
  .page-faq .faq-grid {
    gap: 2rem;
  }
  .page-faq .faq-card--left {
    margin-right: 3rem;
  }
  .page-faq .faq-card--right {
    margin-left: 3rem;
  }
}

/* ── 减少动效 ── */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-toggle,
  .page-faq .faq-answer,
  .page-faq .faq-question,
  .page-faq .faq-icon,
  .page-faq .faq-inlink,
  .page-faq .breadcrumb-link {
    transition: none !important;
    animation: none !important;
  }
  .page-faq .faq-card[open] .faq-toggle {
    transform: none;
  }
  .page-faq .faq-answer {
    animation: none;
  }
}