.page-faq {
  --faq-orange: #FF6B2C;
  --faq-gold: #E5A83A;
  --faq-line: rgba(255, 255, 255, 0.14);
  --faq-line-muted: rgba(255, 255, 255, 0.06);
  --faq-line-strong: rgba(255, 255, 255, 0.28);
  scroll-behavior: smooth;
}

/* ============ Hero ============ */
.page-faq .faq-hero {
  position: relative;
  padding: 32px 0 64px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--faq-orange) 0%, var(--faq-gold) 32%, transparent 72%);
  z-index: 1;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 36px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 40px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}

.page-faq .faq-hero__eyebrow-dot {
  width: 8px;
  height: 8px;
  background: var(--faq-gold);
  flex: 0 0 8px;
}

.page-faq .faq-hero__title {
  margin: 18px 0 20px;
  padding-left: 16px;
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3.25rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--color-paper);
}

.page-faq .faq-hero__title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--faq-orange);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 56ch;
  color: var(--color-mist);
  font-size: 1rem;
  line-height: 1.8;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--faq-line-muted);
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 130px;
  padding: 12px 16px;
  border: 1px solid var(--faq-line-muted);
  background: rgba(16, 26, 58, 0.6);
}

.page-faq .faq-hero__stat-num {
  font-family: var(--font-mono);
  font-size: 1.625rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--faq-gold);
}

.page-faq .faq-hero__stat-label {
  font-size: 0.8125rem;
  color: var(--color-slate);
}

.page-faq .faq-hero__visual {
  position: relative;
}

.page-faq .faq-hero__frame {
  position: relative;
  padding: 10px;
  border: 1px solid var(--faq-line);
  background: var(--color-ink);
}

.page-faq .faq-hero__frame::before {
  content: '';
  position: absolute;
  inset: 5px;
  border: 1px solid var(--faq-line-muted);
  pointer-events: none;
  z-index: 1;
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-hero__frame-index {
  position: absolute;
  right: -4px;
  bottom: -4px;
  z-index: 2;
  padding: 5px 10px;
  background: var(--faq-orange);
  color: var(--color-deep);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

/* ============ 帮助文档索引 ============ */
.page-faq .faq-index {
  padding: 56px 0;
  scroll-margin-top: 80px;
}

.page-faq .faq-index__layout {
  display: grid;
  gap: 28px;
  margin-top: 32px;
}

.page-faq .faq-index__cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-cat {
  display: block;
  min-height: 44px;
  padding: 20px 18px;
  border: 1px solid var(--faq-line);
  color: var(--color-paper);
  text-decoration: none;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: var(--faq-line-strong);
  background: rgba(255, 255, 255, 0.03);
}

.page-faq .faq-cat--guide {
  background: rgba(14, 76, 92, 0.25);
  border-left: 3px solid var(--color-teal);
}

.page-faq .faq-cat--account {
  background: rgba(94, 26, 43, 0.25);
  border-left: 3px solid var(--color-wine);
}

.page-faq .faq-cat--tablet {
  background: rgba(51, 36, 92, 0.35);
  border-left: 3px solid var(--color-indigo);
}

.page-faq .faq-cat--benefit {
  background: rgba(16, 26, 58, 0.6);
  border-left: 3px solid var(--faq-gold);
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}

.page-faq .faq-cat__name {
  display: block;
  margin-top: 8px;
  font-size: 1.125rem;
  font-weight: 700;
}

.page-faq .faq-cat__count {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--faq-gold);
}

.page-faq .faq-cat__desc {
  display: block;
  margin-top: 6px;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-slate);
}

.page-faq .faq-index__figure {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--faq-line);
  background: var(--color-ink);
}

.page-faq .faq-index__img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-index__caption {
  display: flex;
  justify-content: space-between;
  padding: 10px 4px 2px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}

.page-faq .faq-search-hint {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  padding: 14px 16px;
  border: 1px solid var(--faq-line);
  background: rgba(16, 26, 58, 0.4);
}

.page-faq .faq-search-hint__label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}

.page-faq .faq-search-hint__tag {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--faq-line);
  font-size: 0.875rem;
  color: var(--color-mist);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-search-hint__tag:hover,
.page-faq .faq-search-hint__tag:focus-visible {
  color: var(--color-paper);
  border-color: var(--faq-orange);
}

/* ============ 平板访问帮助文档 ============ */
.page-faq .faq-tablet {
  padding: 56px 0;
  background: linear-gradient(90deg, rgba(14, 76, 92, 0.18) 0%, rgba(10, 17, 40, 0.5) 100%);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  scroll-margin-top: 80px;
}

.page-faq .faq-tablet__layout {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

.page-faq .faq-tablet__layout-title {
  margin: 0 0 16px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-paper);
}

.page-faq .faq-tablet__steps ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-faq .faq-tablet__steps li {
  counter-increment: step;
  position: relative;
  padding: 0 0 24px 48px;
  border-left: 1px solid var(--faq-line);
  color: var(--color-mist);
  line-height: 1.7;
}

.page-faq .faq-tablet__steps li:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-faq .faq-tablet__steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -14px;
  top: -4px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--faq-orange);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.page-faq .faq-tablet__trouble {
  padding: 24px 20px;
  border: 1px solid var(--faq-line);
  background: rgba(10, 17, 40, 0.5);
}

.page-faq .faq-tablet__trouble dl {
  margin: 0;
}

.page-faq .faq-tablet__trouble dt {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--faq-gold);
}

.page-faq .faq-tablet__trouble dt:first-of-type {
  margin-top: 0;
}

.page-faq .faq-tablet__trouble dd {
  margin: 4px 0 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-mist);
}

.page-faq .faq-tablet__note {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px;
  margin-top: 32px;
  padding: 16px 20px;
  border: 1px dashed var(--faq-line-strong);
  background: rgba(0, 0, 0, 0.15);
}

.page-faq .faq-tablet__note p {
  flex: 1;
  min-width: 220px;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-mist);
}

/* ============ 账号与权益问答 ============ */
.page-faq .faq-qa {
  padding: 56px 0;
  scroll-margin-top: 80px;
}

.page-faq .faq-qa__layout {
  display: grid;
  gap: 40px;
  margin-top: 32px;
}

.page-faq .faq-qa__sidebar-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}

.page-faq .faq-qa__sidebar-item {
  display: block;
  min-height: 44px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-line-muted);
  font-size: 0.9375rem;
  color: var(--color-mist);
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .faq-qa__sidebar-item::before {
  content: '[';
  margin-right: 4px;
  font-family: var(--font-mono);
  color: var(--faq-orange);
}

.page-faq .faq-qa__sidebar-item::after {
  content: ']';
  margin-left: 4px;
  font-family: var(--font-mono);
  color: var(--faq-orange);
}

.page-faq .faq-qa__sidebar-item:hover,
.page-faq .faq-qa__sidebar-item:focus-visible {
  color: var(--color-paper);
  padding-left: 8px;
}

.page-faq .faq-qa__sidebar-meta {
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid var(--faq-line-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.8;
  letter-spacing: 0.06em;
  color: var(--color-slate);
}

.page-faq .faq-qa__list {
  min-width: 0;
}

.page-faq .faq-qa__group {
  margin-bottom: 36px;
  scroll-margin-top: 96px;
}

.page-faq .faq-qa__group:last-child {
  margin-bottom: 0;
}

.page-faq .faq-qa__group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--faq-gold);
}

.page-faq .faq-qa__group-title::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--faq-orange);
  flex: 0 0 6px;
}

.page-faq .faq-detail {
  display: grid;
  grid-template-rows: auto 0fr;
  overflow: hidden;
  margin-bottom: 12px;
  border: 1px solid var(--faq-line-muted);
  border-left: 3px solid var(--faq-line-muted);
  background: rgba(16, 26, 58, 0.4);
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-detail[open] {
  grid-template-rows: auto 1fr;
  border-color: var(--faq-line-strong);
  border-left-color: var(--faq-orange);
  background: rgba(16, 26, 58, 0.65);
}

.page-faq .faq-detail summary {
  grid-row: 1;
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 16px 48px 16px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-paper);
}

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

.page-faq .faq-detail summary::before {
  content: 'Q';
  flex: 0 0 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--faq-line);
  background: rgba(255, 107, 44, 0.1);
  color: var(--faq-orange);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.page-faq .faq-detail summary::after {
  content: '+';
  position: absolute;
  right: 16px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--color-slate);
  transition: transform 0.24s var(--ease), color 0.24s var(--ease);
}

.page-faq .faq-detail[open] summary::after {
  transform: rotate(135deg);
  color: var(--faq-orange);
}

.page-faq .faq-detail__body {
  grid-row: 2;
  overflow: hidden;
  margin: 0;
  padding: 0 20px 20px 54px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-mist);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
}

.page-faq .faq-detail[open] .faq-detail__body {
  opacity: 1;
}

.page-faq .faq-notice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding: 20px 24px;
  border: 1px dashed var(--faq-line-strong);
  background: var(--color-ink);
}

.page-faq .faq-notice__text {
  flex: 1;
  min-width: 240px;
}

.page-faq .faq-notice__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--faq-gold);
}

.page-faq .faq-notice__text p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-mist);
}

/* ============ 联系人工支持 ============ */
.page-faq .faq-contact {
  padding: 56px 0 64px;
  background:
    linear-gradient(135deg, rgba(94, 26, 43, 0.35) 0%, rgba(94, 26, 43, 0.12) 60%, rgba(16, 26, 58, 0.4) 100%),
    var(--color-deep);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  scroll-margin-top: 80px;
}

.page-faq .faq-contact__layout {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.page-faq .faq-contact__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 44px;
  padding: 24px 20px;
  border: 1px solid var(--faq-line);
  background: rgba(16, 26, 58, 0.45);
}

.page-faq .faq-contact__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--faq-orange);
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  color: var(--color-paper);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-mist);
}

.page-faq .faq-contact__boundary {
  margin: 32px 0 0;
  padding: 16px 20px;
  border-left: 3px solid var(--faq-gold);
  background: rgba(0, 0, 0, 0.15);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-mist);
}

/* ============ 相关页面 ============ */
.page-faq .faq-more {
  padding: 48px 0 80px;
}

.page-faq .faq-more__inner {
  display: grid;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--faq-line);
  background: rgba(16, 26, 58, 0.25);
}

.page-faq .faq-more__title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-slate);
}

.page-faq .faq-more__link {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--faq-line-muted);
  font-size: 0.9375rem;
  line-height: 1.4;
  color: var(--color-mist);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-more__link:hover,
.page-faq .faq-more__link:focus-visible {
  color: var(--color-paper);
  border-color: var(--faq-line-strong);
  background: rgba(255, 255, 255, 0.03);
}

/* ============ 桌面端适配 ============ */
@media (min-width: 720px) {
  .page-faq .faq-index__cats {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-contact__layout {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-more__inner {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-faq .faq-more__title {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 40px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 64px;
    align-items: center;
  }

  .page-faq .faq-index__layout {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-tablet__layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    margin-top: 32px;
  }

  .page-faq .faq-qa__layout {
    grid-template-columns: 220px 1fr;
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-qa__sidebar {
    position: sticky;
    top: 96px;
  }
}