.page-faq {
  --faq-bar: #0A1826;
  --faq-paper-ink: #0F1F2E;
  --faq-paper-muted: rgba(15, 31, 46, 0.7);
  --faq-paper-link: #0B6B68;
  --faq-ink-soft: rgba(15, 31, 46, 0.07);
  background: var(--fb-ink-900);
  color: var(--fb-text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--fb-hairline);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: 0.34;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 24, 38, 0.7) 0%, rgba(10, 24, 38, 0.9) 55%, var(--fb-ink-900) 100%),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(53, 227, 224, 0.06) 39px 40px);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 26px;
  padding-bottom: 44px;
}

.page-faq .faq-hero__inner .fb-breadcrumb {
  margin-bottom: 26px;
}

.page-faq .faq-hero__inner .fb-eyebrow {
  margin: 0 0 10px;
}

.page-faq .faq-hero__inner .fb-h1 {
  max-width: 20ch;
  margin: 0 0 16px;
}

.page-faq .faq-hero__inner .fb-lead {
  max-width: 60ch;
  margin: 0;
}

/* 检索框 */
.page-faq .faq-search {
  display: grid;
  gap: 8px;
  max-width: 680px;
  margin-top: 30px;
}

.page-faq .faq-search__label {
  font-family: var(--fb-font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fb-text-muted);
}

.page-faq .faq-search__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  background: var(--fb-ink-700);
  border: 1px solid var(--fb-cyan);
  border-radius: var(--fb-radius);
  box-shadow: 0 0 0 5px rgba(53, 227, 224, 0.08);
}

.page-faq .faq-search__icon {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--fb-cyan);
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 15px 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--fb-text);
  font-family: var(--fb-font-body);
  font-size: 16px;
}

.page-faq .faq-search__input::placeholder {
  color: var(--fb-text-muted);
}

.page-faq .faq-search__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fb-text-muted);
}

.page-faq .faq-search__meta .fb-num {
  font-size: 15px;
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding-top: 22px;
  padding-bottom: 56px;
}

.page-faq .faq-tabs {
  display: flex;
  gap: 8px;
  padding-bottom: 22px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-tabs__link {
  flex: none;
  padding: 8px 13px;
  border: 1px solid var(--fb-hairline);
  border-radius: var(--fb-radius);
  background: var(--fb-ink-700);
  color: var(--fb-text);
  font-size: 13px;
  text-decoration: none;
  transition: border-color var(--fb-ease), color var(--fb-ease);
}

.page-faq .faq-tabs__link:hover,
.page-faq .faq-tabs__link:focus-visible {
  border-color: var(--fb-cyan);
  color: var(--fb-cyan);
}

/* 分组 */
.page-faq .faq-group {
  margin-bottom: 20px;
  scroll-margin-top: 72px;
}

.page-faq .faq-group__shell {
  background: var(--fb-paper);
  border: 1px solid var(--fb-hairline-on-paper);
  border-radius: var(--fb-radius);
  overflow: hidden;
  box-shadow: 0 14px 34px rgba(2, 8, 16, 0.32);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  background: var(--faq-bar);
  border-bottom: 2px solid var(--fb-cyan);
  color: var(--fb-text);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-group__idx {
  font-family: var(--fb-font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--fb-orange);
}

.page-faq .faq-group__title {
  font-family: var(--fb-font-head);
  font-weight: 700;
  font-size: clamp(17px, 4.4vw, 22px);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.page-faq .faq-group__count {
  font-family: var(--fb-font-num);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fb-text-muted);
  border: 1px solid var(--fb-hairline);
  border-radius: var(--fb-radius);
  padding: 3px 7px;
}

.page-faq .faq-group__cue {
  display: none;
}

.page-faq .faq-group__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--faq-paper-ink);
}

/* 问答条目 */
.page-faq .faq-item {
  display: grid;
  gap: 10px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--fb-hairline-on-paper);
}

.page-faq .faq-item:last-child {
  border-bottom: 0;
  padding-bottom: 6px;
}

.page-faq .faq-item__q {
  position: relative;
  margin: 0;
  padding-left: 14px;
  font-family: var(--fb-font-head);
  font-weight: 700;
  font-size: clamp(16px, 4.2vw, 19px);
  line-height: 1.45;
  color: var(--faq-paper-ink);
}

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 6px;
  height: 6px;
  background: var(--faq-paper-link);
}

.page-faq .faq-item__a {
  font-family: var(--fb-font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-paper-muted);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 68ch;
}

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

.page-faq .faq-item__a a {
  color: var(--faq-paper-link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-verdict {
  padding-left: 12px;
  border-left: 2px solid var(--fb-orange);
  color: var(--faq-paper-ink);
  font-weight: 600;
}

/* 步骤 */
.page-faq .faq-steps {
  display: grid;
  gap: 8px;
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-steps__idx {
  display: block;
  height: 24px;
  line-height: 22px;
  text-align: center;
  font-family: var(--fb-font-num);
  font-size: 12px;
  color: var(--faq-paper-ink);
  background: var(--faq-ink-soft);
  border: 1px solid var(--fb-hairline-on-paper);
  border-radius: var(--fb-radius);
}

/* 示意图 */
.page-faq .faq-plate {
  margin: 4px 0 22px;
}

.page-faq .faq-plate .fb-figure__frame {
  aspect-ratio: 3 / 2;
  border-color: var(--fb-hairline);
}

.page-faq .faq-plate .fb-figure__caption {
  color: var(--fb-text-muted);
}

/* 收尾 */
.page-faq .faq-outro {
  border-top: 1px solid var(--fb-hairline);
  background:
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(53, 227, 224, 0.05) 79px 80px),
    linear-gradient(135deg, var(--fb-ink-700) 0%, var(--fb-ink-900) 70%);
}

.page-faq .faq-outro__inner {
  padding-top: 8px;
  padding-bottom: 8px;
}

.page-faq .faq-outro__inner .fb-eyebrow {
  margin: 0 0 10px;
}

.page-faq .faq-outro__inner .fb-h2 {
  margin: 0 0 12px;
  max-width: 22ch;
}

.page-faq .faq-outro__text {
  max-width: 58ch;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--fb-text-muted);
}

.page-faq .faq-outro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero__inner {
    padding-top: 34px;
    padding-bottom: 56px;
  }

  .page-faq .faq-search {
    margin-top: 36px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: auto 1fr auto auto;
    gap: 16px;
    padding: 18px 24px;
  }

  .page-faq .faq-group__cue {
    display: block;
    width: 9px;
    height: 9px;
    border-right: 2px solid var(--fb-cyan);
    border-bottom: 2px solid var(--fb-cyan);
    transform: rotate(-135deg);
    transition: transform var(--fb-ease);
  }

  .page-faq .faq-group__shell:not([open]) .faq-group__cue {
    transform: rotate(45deg);
  }

  .page-faq .faq-group__body {
    padding: 0 24px 18px;
  }

  .page-faq .faq-group__idx {
    font-size: 24px;
  }

  .page-faq .faq-outro__inner {
    padding-top: 14px;
    padding-bottom: 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-item {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
    padding: 24px 0;
  }

  .page-faq .faq-item__q {
    padding-left: 0;
    padding-top: 2px;
    padding-right: 8px;
  }

  .page-faq .faq-item__q::before {
    display: none;
  }

  .page-faq .faq-plate {
    margin: 8px 0 30px;
  }

  .page-faq .faq-plate .fb-figure__frame {
    max-width: 900px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs__link,
  .page-faq .faq-group__cue {
    transition: none;
  }
}