.page-faq {
  background-color: var(--navy);
  color: var(--light);
  min-height: 60vh;
  overflow-x: hidden;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 2.5rem 1.25rem 2rem;
  background:
    radial-gradient(ellipse at 12% 18%, rgba(212, 175, 55, 0.14), transparent 46%),
    linear-gradient(130deg, var(--teal) 0%, var(--navy) 64%);
  border-bottom: 1px solid rgba(212, 175, 55, 0.32);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -6rem;
  top: -6rem;
  width: 16rem;
  height: 16rem;
  border: 2px solid rgba(212, 175, 55, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-copy .section-index {
  font-family: 'Roboto Mono', 'SF Mono', monospace;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-faq .faq-hero-copy .section-index::before {
  content: "";
  width: 2.5rem;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}

.page-faq .faq-hero h1 {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Arial Black', sans-serif;
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.14;
  color: var(--light);
  margin: 0 0 1rem;
  letter-spacing: 0.01em;
}

.page-faq .faq-hero-lead {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.75;
  margin: 0 0 1.75rem;
  max-width: 32em;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-hero-stats .data-card {
  min-width: 88px;
  padding: 0.7rem 0.9rem;
  text-align: center;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
}

.page-faq .faq-hero-stats .data-value {
  font-family: 'Roboto Mono', 'SF Mono', monospace;
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.1;
}

.page-faq .faq-hero-stats .data-label {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 0.3rem;
  letter-spacing: 0.04em;
}

.page-faq .faq-hero-visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

.page-faq .faq-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主题导航 ---------- */
.page-faq .faq-topic-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 30;
  background: rgba(11, 29, 46, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-faq .faq-topic-nav-inner {
  display: flex;
  gap: 0.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.65rem 1rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-topic-nav-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-topic-link {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 0.48rem 0.9rem;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted);
  font-size: 0.79rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.page-faq .faq-topic-link:hover,
.page-faq .faq-topic-link:focus-visible {
  color: var(--light);
  background: rgba(212, 175, 55, 0.1);
  border-color: rgba(212, 175, 55, 0.5);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1rem 3.5rem;
}

/* ---------- 侧边索引 ---------- */
.page-faq .faq-sidebar {
  display: none;
}

.page-faq .faq-sidebar-inner {
  background: rgba(15, 61, 62, 0.36);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.4rem 1.25rem;
}

.page-faq .faq-sidebar h2 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--light);
  margin: 0 0 0.3rem;
}

.page-faq .faq-sidebar-note {
  font-size: 0.72rem;
  color: var(--muted);
  margin: 0 0 1.1rem;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index-list li + li {
  margin-top: 0.15rem;
}

.page-faq .faq-index-list a {
  display: block;
  padding: 0.48rem 0.6rem;
  border-radius: 6px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 0.8rem;
  text-decoration: none;
  transition: color var(--transition), background var(--transition), border-color var(--transition), padding-left var(--transition);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--light);
  background: rgba(255, 255, 255, 0.06);
  border-left-color: var(--gold);
  padding-left: 0.8rem;
}

/* ---------- FAQ 分类 ---------- */
.page-faq .faq-category {
  margin-bottom: 3rem;
}

.page-faq .faq-category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}

.page-faq .faq-category-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 5.5rem;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), var(--red));
}

.page-faq .faq-category-num {
  font-family: 'Roboto Mono', 'SF Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--red);
  line-height: 1;
}

.page-faq .faq-category-header h2 {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Arial Black', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--light);
  margin: 0;
}

/* ---------- FAQ 折叠卡片 ---------- */
.page-faq .faq-item {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-sm);
  margin-bottom: 0.7rem;
  transition: border-color var(--transition), background var(--transition);
}

.page-faq .faq-item:hover {
  border-color: rgba(212, 175, 55, 0.35);
  background: rgba(255, 255, 255, 0.065);
}

.page-faq .faq-item[open] {
  border-color: rgba(212, 175, 55, 0.28);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  color: var(--light);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.45;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: 50%;
  color: var(--gold);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  transition: transform var(--transition), background var(--transition);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  background: rgba(212, 175, 55, 0.15);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-answer {
  padding: 0 1.2rem 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.page-faq .faq-answer p {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.72;
}

/* ---------- 答案内时间线 ---------- */
.page-faq .faq-answer-timeline {
  margin: 1rem 0 0;
  padding: 0.5rem 0 0;
}

.page-faq .faq-timeline-item {
  display: grid;
  grid-template-columns: 14px 6.5em 1fr;
  gap: 0.6rem;
  align-items: center;
  position: relative;
  padding: 0.35rem 0;
}

.page-faq .faq-timeline-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1.7rem;
  bottom: -0.4rem;
  width: 2px;
  background: rgba(212, 175, 55, 0.25);
}

.page-faq .faq-timeline-marker {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.18);
}

.page-faq .faq-timeline-item:nth-child(2) .faq-timeline-marker {
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.18);
}

.page-faq .faq-timeline-item:nth-child(3) .faq-timeline-marker {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(77, 208, 225, 0.18);
}

.page-faq .faq-timeline-time {
  font-family: 'Roboto Mono', 'SF Mono', monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--light);
}

.page-faq .faq-timeline-label {
  font-size: 0.79rem;
  color: var(--muted);
  line-height: 1.4;
}

/* ---------- 客户端目录双栏 ---------- */
.page-faq .faq-category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-faq .faq-q-list .faq-item:last-child {
  margin-bottom: 0;
}

.page-faq .faq-category-visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.22);
}

.page-faq .faq-category-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-visual-caption {
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin: 0;
  text-align: center;
}

/* ---------- 内联链接 ---------- */
.page-faq .faq-inline-link {
  color: var(--gold);
  text-decoration: underline;
  text-decoration-color: rgba(212, 175, 55, 0.4);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition);
}

.page-faq .faq-inline-link:hover {
  text-decoration-color: var(--gold);
}

/* ---------- 联系模块 ---------- */
.page-faq .faq-contact-box {
  margin-top: 2.5rem;
  padding: 2rem 1.5rem;
  text-align: center;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(15, 61, 62, 0.4), rgba(11, 29, 46, 0.7));
  border: 1px solid rgba(212, 175, 55, 0.25);
}

.page-faq .faq-contact-box h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--light);
  margin: 0 0 0.5rem;
}

.page-faq .faq-contact-box p {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
  max-width: 34em;
  margin: 0 auto 1.4rem;
}

.page-faq .faq-contact-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

/* ---------- 响应式桌面端 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 4rem 2rem 3rem;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: center;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 3rem;
    padding: 3rem 2rem 4.5rem;
    align-items: start;
  }

  .page-faq .faq-sidebar {
    display: block;
  }

  .page-faq .faq-sidebar-inner {
    position: sticky;
    top: calc(var(--header-h) + 4rem);
  }

  .page-faq .faq-category-grid {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 1.75rem;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 4rem;
  }

  .page-faq .faq-category-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
  }
}