.page-faq {
  --faq-line: rgba(13, 27, 42, .13);
  --faq-line-strong: rgba(13, 27, 42, .3);
  --faq-answer: rgba(13, 27, 42, .78);
}

/* 面包屑与首屏 */
.page-faq .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero__grid {
  gap: 32px;
  align-items: center;
}

.page-faq h1 {
  margin: 12px 0 18px;
  font-size: clamp(1.85rem, 5.6vw, 3.2rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 20ch;
}

.page-faq .faq-hero__copy .lede {
  max-width: 54ch;
}

.page-faq .faq-jump {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 44ch;
}

.page-faq .faq-jump li {
  display: flex;
}

.page-faq .faq-jump__link {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  background: var(--white);
  border: 1px solid var(--faq-line);
  clip-path: var(--clip-cut-xs);
  transition: border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-jump__link::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--clay);
  transform: rotate(45deg);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--clay);
  background: var(--paper);
  transform: translateX(3px);
}

.page-faq .faq-hero__media {
  margin: 0;
  width: 100%;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* 筛选区 */
.page-faq .faq-index {
  background: var(--paper-soft);
}

.page-faq .faq-index__head {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 22px;
  margin-bottom: 6px;
}

.page-faq .faq-chips {
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chips__n {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  margin-left: 6px;
  opacity: .65;
}

.page-faq .faq-empty {
  margin: 26px 0 0;
  padding: 14px 18px;
  background: var(--white);
  border-left: 3px solid var(--clay);
  clip-path: var(--clip-cut-xs);
}

/* 问答分组 */
.page-faq .faq-groups {
  display: block;
}

.page-faq .faq-group {
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--faq-line-strong);
}

.page-faq .faq-group:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 6px;
}

.page-faq .faq-group__num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--clay);
  line-height: 1;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__meta {
  margin-left: auto;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--stone-2);
  white-space: nowrap;
}

/* 问答条目 */
.page-faq .qa {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa:not([open]) > .qa__a {
  display: none;
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 20px;
  gap: 0 12px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q:hover .qa__title,
.page-faq .qa__q:focus-visible .qa__title {
  color: var(--clay);
}

.page-faq .qa__num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--stone-2);
  padding-top: 2px;
}

.page-faq .qa__title {
  margin: 0;
  font-size: clamp(1rem, 1.9vw, 1.1rem);
  font-weight: 800;
  line-height: 1.5;
  color: var(--ink);
  transition: color .2s var(--ease);
}

.page-faq .qa__mark {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 6px;
  justify-self: end;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--clay);
}

.page-faq .qa__mark::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
  transition: opacity .2s var(--ease);
}

.page-faq .qa[open] .qa__mark::after {
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--faq-answer);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .qa__a .num {
  color: var(--clay);
}

/* 联系区块 */
.page-faq .faq-ask {
  position: relative;
}

.page-faq .faq-ask__grid {
  gap: 34px;
  align-items: start;
}

.page-faq .faq-ask .eyebrow {
  color: var(--volt);
}

.page-faq .faq-ask h2 {
  margin: 12px 0 16px;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.2;
  color: var(--white);
  max-width: 18ch;
}

.page-faq .faq-ask__lead {
  max-width: 54ch;
  color: var(--on-ink);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-contact {
  margin: 26px 0 14px;
  display: grid;
  gap: 0;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hair-ink);
}

.page-faq .faq-contact dt {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--on-ink-faint);
}

.page-faq .faq-contact dd {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--on-ink-strong);
  word-break: break-word;
}

.page-faq .faq-ask__note {
  color: var(--on-ink-faint);
  margin: 0;
}

.page-faq .faq-ask__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-ask__media {
  margin: 0;
  width: 100%;
}

.page-faq .faq-ask__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

/* 窄屏 */
@media (max-width: 899px) {
  .page-faq .faq-hero__grid,
  .page-faq .faq-ask__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero__media {
    order: -1;
  }

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

/* 宽屏 */
@media (min-width: 900px) {
  .page-faq .faq-index__head {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .qa {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: 44px;
    align-items: start;
  }

  .page-faq .qa__q {
    padding: 20px 0 22px;
  }

  .page-faq .qa__a {
    padding: 20px 0 24px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .qa__title,
  .page-faq .qa__mark::after {
    transition-duration: .16s;
  }

  .page-faq .faq-jump__link:hover,
  .page-faq .faq-jump__link:focus-visible {
    transform: none;
  }
}