.page-faq {
  --faq-line: rgba(124, 227, 174, .32);
  --faq-line-strong: rgba(124, 227, 174, .88);
  --faq-rail-w: 104px;
  --faq-top: calc(var(--chain-h) + var(--masthead-h) + 20px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(48px, 8vw, 112px);
  padding-bottom: clamp(36px, 5vw, 72px);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: -18%;
  width: 46vw;
  height: 46vw;
  max-width: 620px;
  max-height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(31, 191, 122, .22), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  align-items: end;
  row-gap: 40px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-context {
  margin: 0 0 22px;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.page-faq .faq-context a {
  color: var(--ink-soft);
  text-decoration: none;
}

.page-faq .faq-context a:hover {
  color: var(--lime);
}

.page-faq .faq-context__sep {
  margin: 0 10px;
  color: var(--grid);
}

.page-faq .faq-hero__title {
  margin: 0 0 26px;
  font-size: clamp(42px, 8vw, 104px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--bone);
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: 84px;
  height: 4px;
  margin-top: 24px;
  background: var(--emerald);
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  margin: 0 0 30px;
  color: var(--ink-soft);
}

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

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

.page-faq .faq-hero__media {
  width: 100%;
  aspect-ratio: 3 / 2;
  background: var(--slate);
  border: 1px solid var(--faq-line);
}

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

.page-faq .faq-hero__caption {
  margin: 14px 0 0;
  color: var(--ink-faint);
}

/* ---------- 主题跳转 ---------- */
.page-faq .faq-jump {
  margin-top: clamp(40px, 6vw, 76px);
  border-top: 1px solid var(--hair);
  padding-top: 20px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  color: var(--bone);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .faq-jump__idx {
  font-size: 12px;
  color: var(--emerald);
  letter-spacing: .1em;
}

/* ---------- 分组骨架 ---------- */
.page-faq .faq-group {
  padding-top: clamp(40px, 6vw, 84px);
  padding-bottom: clamp(40px, 6vw, 84px);
  scroll-margin-top: var(--faq-top);
}

.page-faq .faq-group__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-group__aside {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.page-faq .faq-group__idx {
  font-size: 13px;
  letter-spacing: .22em;
  color: var(--emerald);
  line-height: 1.2;
}

.page-faq .faq-group__idx--injury {
  color: var(--amber);
}

.page-faq .faq-group__idx--lime {
  color: var(--lime);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(22px, 5.5vw, 30px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: .04em;
  color: var(--bone);
}

.page-faq .faq-group__cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

/* ---------- 档案卡 ---------- */
.page-faq .faq-card {
  position: relative;
  border: 2px solid var(--faq-line);
  background: rgba(36, 42, 46, .55);
  overflow: hidden;
  transition: border-color .24s var(--ease), background-color .24s var(--ease);
}

.page-faq .faq-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 0;
  height: 0;
  border-top: 18px solid var(--flesh);
  border-right: 18px solid transparent;
  opacity: .85;
  pointer-events: none;
}

.page-faq .faq-card:hover {
  border-color: var(--faq-line-strong);
}

.page-faq .faq-card[open] {
  border-color: var(--faq-line-strong);
  background: rgba(36, 42, 46, .82);
}

.page-faq .faq-card--injury {
  border-color: rgba(255, 138, 61, .4);
}

.page-faq .faq-card--injury::before {
  border-top-color: var(--amber);
}

.page-faq .faq-card--injury:hover,
.page-faq .faq-card--injury[open] {
  border-color: rgba(255, 138, 61, .92);
}

.page-faq .faq-card--lime {
  border-color: rgba(198, 255, 61, .34);
}

.page-faq .faq-card--lime::before {
  border-top-color: var(--lime);
}

.page-faq .faq-card--lime:hover,
.page-faq .faq-card--lime[open] {
  border-color: rgba(198, 255, 61, .9);
}

.page-faq .faq-card__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px clamp(18px, 3vw, 30px) 20px calc(clamp(18px, 3vw, 30px) + 10px);
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--bone);
  transition: color .2s var(--ease);
}

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

.page-faq .faq-card__q:hover {
  color: var(--flesh);
}

.page-faq .faq-card__q:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: -3px;
}

.page-faq .faq-card--injury .faq-card__q:hover {
  color: #ffd0ae;
}

.page-faq .faq-card--lime .faq-card__q:hover {
  color: var(--lime);
}

.page-faq .faq-card__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-card__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  transition: transform .3s var(--ease);
}

.page-faq .faq-card__mark::before,
.page-faq .faq-card__mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  margin-top: -1px;
  background: var(--lime);
}

.page-faq .faq-card__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-card--injury .faq-card__mark::before,
.page-faq .faq-card--injury .faq-card__mark::after {
  background: var(--amber);
}

.page-faq .faq-card[open] .faq-card__mark {
  transform: rotate(135deg);
}

.page-faq .faq-card__a {
  padding: 0 clamp(18px, 3vw, 30px) 24px calc(clamp(18px, 3vw, 30px) + 10px);
}

.page-faq .faq-card__a p {
  margin: 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-card__a a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-card[open] .faq-card__a {
  animation: faqOpen .3s var(--ease) both;
}

@keyframes faqOpen {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 反馈清单 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px dashed var(--hair);
}

.page-faq .faq-steps li {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px dashed var(--hair);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-steps__n {
  flex: none;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--lime);
}

/* ---------- 反馈画板配图 ---------- */
.page-faq .faq-group--feedback {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-feedback__figure {
  margin: 0 0 clamp(32px, 5vw, 56px);
}

.page-faq .faq-feedback__media {
  width: min(100%, 360px);
  aspect-ratio: 1 / 1;
  background: var(--slate);
}

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

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  padding-top: clamp(44px, 6vw, 88px);
  padding-bottom: clamp(44px, 6vw, 88px);
}

.page-faq .faq-cta__inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
  border-left: 3px solid var(--emerald);
  padding-left: clamp(20px, 4vw, 44px);
}

.page-faq .faq-cta__text .prose {
  margin: 14px 0 0;
  max-width: 60ch;
  color: var(--ink-soft);
}

.page-faq .faq-cta__act {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 820px) {
  .page-faq .faq-group__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-group__aside {
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: var(--faq-top);
    align-self: start;
  }

  .page-faq .faq-group__title {
    writing-mode: vertical-rl;
    text-orientation: upright;
    letter-spacing: .26em;
    line-height: 1;
    padding-top: 6px;
  }

  .page-faq .faq-card__q {
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .page-faq .faq-cta__inner {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 48px;
  }

  .page-faq .faq-cta__act {
    flex: none;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero__grid {
    align-items: center;
  }

  .page-faq .faq-hero__figure {
    padding-left: 24px;
  }

  .page-faq .faq-group__grid {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 64px;
  }

  .page-faq .faq-group__cards {
    gap: 16px;
  }
}

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

  .page-faq .faq-card[open] .faq-card__a {
    animation: none;
  }
}