.page-faq {
  --faq-gridline: rgba(232, 240, 254, 0.036);
  --faq-gold-soft: rgba(212, 168, 67, 0.1);
  --faq-card-open: #152D52;
  --faq-index-shadow: 8px 8px 0 rgba(6, 16, 31, 0.32);
  background:
    radial-gradient(circle at 82% 3%, rgba(212, 168, 67, 0.1), transparent 28%),
    radial-gradient(circle at 6% 48%, rgba(57, 210, 242, 0.055), transparent 22%),
    linear-gradient(var(--faq-gridline) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-gridline) 1px, transparent 1px),
    var(--color-deep);
  background-size: auto, auto, 36px 36px, 36px 36px, auto;
  position: relative;
}

/* 面包屑 */
.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-moon);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.page-faq .faq-breadcrumb a {
  color: var(--color-moon);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-faq .faq-breadcrumb a:hover,
.page-faq .faq-breadcrumb a:focus-visible {
  color: var(--color-gold-bright);
}

.page-faq .faq-breadcrumb__sep {
  color: var(--color-gold);
}

.page-faq .faq-breadcrumb__current {
  color: var(--color-ice);
}

/* Hero */
.page-faq .faq-hero {
  padding-top: clamp(2.75rem, 6vw, 4.75rem);
  padding-bottom: clamp(2.25rem, 4vw, 3.25rem);
  position: relative;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-red) 52%, transparent);
  transform: rotate(-0.4deg);
}

.page-faq .faq-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.875rem;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.75rem, 3.6vw, 2.7rem);
  line-height: 1.28;
  color: var(--color-ice);
  max-width: 900px;
  margin: 0 0 1.125rem;
}

.page-faq .faq-hero__rule {
  display: block;
  margin-bottom: 1.25rem;
}

.page-faq .faq-hero__desc {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-moon);
  max-width: 740px;
  margin: 0;
}

/* 双栏布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2.25rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  padding-bottom: var(--section-py);
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }
}

/* 左侧分类索引 */
.page-faq .faq-index {
  position: relative;
  background: var(--color-navy);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  border: 1px solid rgba(212, 168, 67, 0.22);
  box-shadow: var(--faq-index-shadow);
  overflow: hidden;
}

@media (min-width: 900px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 1.5rem;
  }
}

.page-faq .faq-index::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-gold), var(--color-electric), var(--color-red));
}

.page-faq .faq-index__map {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}

.page-faq .faq-index__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.375rem;
}

@media (min-width: 900px) {
  .page-faq .faq-index__nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-moon);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--color-gold-bright);
  background: var(--faq-gold-soft);
  border-left-color: var(--color-gold);
  transform: translateX(4px);
}

.page-faq .faq-index__link:target {
  color: var(--color-gold-bright);
  background: var(--faq-gold-soft);
  border-left-color: var(--color-red);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--color-gold);
}

.page-faq .faq-index__note {
  margin-top: 1.25rem;
  padding: 0.875rem 1rem;
  background: rgba(6, 16, 31, 0.48);
  border: 1px dashed rgba(232, 240, 254, 0.14);
  border-radius: var(--radius-sm);
}

.page-faq .faq-index__note-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: 0.375rem;
}

.page-faq .faq-index__note p:last-child {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--color-moon);
  margin: 0;
}

/* 右侧内容区 */
.page-faq .faq-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(2.75rem, 6vw, 4.25rem);
  position: relative;
}

.page-faq .faq-content::after {
  content: "";
  position: absolute;
  top: 80px;
  right: -2%;
  width: 110px;
  height: 110px;
  background-image: radial-gradient(circle, rgba(242, 201, 76, 0.28) 1.5px, transparent 2px);
  background-size: 16px 16px;
  opacity: 0.22;
  pointer-events: none;
}

.page-faq .faq-section {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-section + .faq-section {
  border-top: 1px solid rgba(232, 240, 254, 0.07);
  padding-top: clamp(2.25rem, 5vw, 3.5rem);
}

.page-faq .faq-section__intro {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-moon);
  margin: -0.375rem 0 1.375rem;
}

/* 高频操作卡片网格 */
.page-faq .faq-quick-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

@media (min-width: 640px) {
  .page-faq .faq-quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-quick-card {
  position: relative;
  background: var(--color-navy);
  border: 1px solid rgba(212, 168, 67, 0.16);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.25rem 1.5rem;
  overflow: hidden;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-quick-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-electric));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}

.page-faq .faq-quick-card:hover,
.page-faq .faq-quick-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(242, 201, 76, 0.45);
}

.page-faq .faq-quick-card:hover::before,
.page-faq .faq-quick-card:focus-within::before {
  transform: scaleX(1);
}

.page-faq .faq-quick-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.75rem;
  background: var(--color-gold);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: var(--radius-pill);
  margin-bottom: 0.875rem;
}

.page-faq .faq-quick-card:nth-child(even) .faq-quick-card__num {
  background: var(--color-red);
  color: var(--color-ice);
}

.page-faq .faq-quick-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--color-ice);
  margin: 0 0 0.5rem;
}

.page-faq .faq-quick-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-moon);
  margin: 0;
}

/* 手风琴堆叠 */
.page-faq .faq-stack {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

/* 手风琴卡片 */
.page-faq .faq-card {
  background: var(--color-navy);
  border: 1px solid rgba(232, 240, 254, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-card:hover {
  border-color: rgba(212, 168, 67, 0.42);
  transform: translateY(-2px);
}

.page-faq .faq-card[open] {
  background: var(--faq-card-open);
  border-color: rgba(212, 168, 67, 0.55);
}

.page-faq .faq-card__summary {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1.125rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-card__summary:focus-visible {
  outline: 2px solid var(--color-gold-bright);
  outline-offset: -2px;
}

.page-faq .faq-card__num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.page-faq .faq-card[open] .faq-card__num {
  background: var(--color-red);
  color: var(--color-ice);
}

.page-faq .faq-card__q {
  flex: 1;
  min-width: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-ice);
  transition: color 0.25s var(--ease);
}

.page-faq .faq-card:hover .faq-card__q,
.page-faq .faq-card[open] .faq-card__q {
  color: var(--color-gold-bright);
}

.page-faq .faq-card__chev {
  flex-shrink: 0;
  color: var(--color-gold);
  transition: transform 0.35s var(--ease), color 0.25s var(--ease);
}

.page-faq .faq-card[open] .faq-card__chev {
  transform: rotate(180deg);
  color: var(--color-gold-bright);
}

.page-faq .faq-card__help {
  flex-shrink: 0;
  color: var(--color-gold);
  opacity: 0;
  transform: translateX(8px) scale(0.85);
  transition: opacity 0.25s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-card:hover .faq-card__help,
.page-faq .faq-card:focus-within .faq-card__help,
.page-faq .faq-card[open] .faq-card__help {
  opacity: 1;
  transform: translateX(0) scale(1);
}

.page-faq .faq-card__answer {
  padding: 0 1.25rem 1.375rem;
  position: relative;
}

.page-faq .faq-card__answer::before {
  content: "";
  display: block;
  width: 2.25rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
  margin-bottom: 0.875rem;
}

.page-faq .faq-card__answer p {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-moon);
  margin: 0 0 1.125rem;
}

.page-faq .faq-card__answer p:last-of-type {
  margin-bottom: 1.25rem;
}

.page-faq .faq-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 168, 67, 0.35);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), gap 0.3s var(--ease);
}

.page-faq .faq-card__link:hover,
.page-faq .faq-card__link:focus-visible {
  color: var(--color-gold-bright);
  border-color: var(--color-gold-bright);
  gap: 0.75rem;
}

/* 收藏同步示意图 */
.page-faq .faq-sync-visual {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid rgba(212, 168, 67, 0.22);
  margin: 0.5rem 0 0;
  box-shadow: 6px 6px 0 rgba(6, 16, 31, 0.25);
}

/* 收藏同步锚点占位 */
.page-faq .faq-scroll-anchor {
  display: block;
  height: 0;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

/* 底部联系引导 */
.page-faq .faq-bottom-cta {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
  background: linear-gradient(135deg, rgba(212, 168, 67, 0.14), rgba(57, 210, 242, 0.05));
  border: 1px solid rgba(212, 168, 67, 0.28);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  position: relative;
  overflow: hidden;
}

@media (min-width: 640px) {
  .page-faq .faq-bottom-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.page-faq .faq-bottom-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-red) 60%, transparent);
}

.page-faq .faq-bottom-cta__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--color-ice);
  margin: 0 0 0.375rem;
}

.page-faq .faq-bottom-cta__text {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-moon);
  margin: 0;
  max-width: 620px;
}

.page-faq .faq-bottom-cta .btn {
  flex-shrink: 0;
}