.page-faq {
  color: var(--frost);
  padding-bottom: 76px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 34px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 22px;
  padding-bottom: 42px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 6.4vw, 3.35rem);
  line-height: 1.07;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  color: var(--frost);
}

.page-faq .faq-hero__lede {
  margin: 0 0 18px;
  max-width: 56ch;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 245, 250, 0.88);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--cool);
}

.page-faq .faq-hero__meta li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--edge);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: var(--edge-w) solid var(--edge);
  box-shadow: var(--shadow-hard);
  background: var(--steel);
  overflow: hidden;
}

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

/* ---------- 关键词跳转 ---------- */
.page-faq .faq-jump {
  display: grid;
  gap: 12px;
  padding: 18px 16px;
  border: var(--edge-w) solid var(--edge);
  background: var(--steel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-jump__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  white-space: nowrap;
}

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

.page-faq .faq-jump__tags a {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--edge);
  background: var(--ink);
  color: var(--frost);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-jump__tags a:hover,
.page-faq .faq-jump__tags a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(47, 243, 224, 0.08);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  margin-top: 46px;
  border-top: var(--edge-w) solid var(--edge);
}

.page-faq .faq-group {
  position: relative;
  border-bottom: var(--edge-w) solid var(--edge);
}

.page-faq .faq-group::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 8px;
  height: 8px;
  background: var(--gold);
}

.page-faq .faq-group__summary {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 26px;
  align-items: center;
  gap: 12px;
  padding: 22px 4px;
  cursor: pointer;
  list-style: none;
  transition: background-color 180ms var(--ease), padding-left 180ms var(--ease);
}

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

.page-faq .faq-group__summary::marker {
  content: "";
}

.page-faq .faq-group__summary:hover,
.page-faq .faq-group__summary:focus-visible {
  background-color: rgba(47, 243, 224, 0.06);
  padding-left: 12px;
  outline: none;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cool);
  transition: color 180ms var(--ease);
}

.page-faq .faq-group[open] .faq-group__num {
  color: var(--cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: 0.01em;
  color: var(--frost);
}

.page-faq .faq-group__hint {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cool);
  white-space: nowrap;
}

.page-faq .faq-group__mark {
  position: relative;
  justify-self: end;
  width: 22px;
  height: 22px;
  border: 1px solid var(--edge);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-faq .faq-group__mark::before,
.page-faq .faq-group__mark::after {
  content: "";
  position: absolute;
  background: var(--frost);
  transition: transform 220ms var(--ease), opacity 220ms var(--ease), background-color 180ms var(--ease);
}

.page-faq .faq-group__mark::before {
  left: 4px;
  right: 4px;
  top: 50%;
  height: 2px;
  margin-top: -1px;
}

.page-faq .faq-group__mark::after {
  top: 4px;
  bottom: 4px;
  left: 50%;
  width: 2px;
  margin-left: -1px;
}

.page-faq .faq-group[open] .faq-group__mark {
  border-color: var(--cyan);
  background: rgba(47, 243, 224, 0.14);
}

.page-faq .faq-group[open] .faq-group__mark::before {
  background: var(--cyan);
}

.page-faq .faq-group[open] .faq-group__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-group__body {
  margin-left: 4px;
  padding: 2px 4px 30px 16px;
  border-left: var(--edge-w) solid var(--cyan);
  animation: faq-open 260ms var(--ease);
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-group__lead {
  margin: 0 0 22px;
  padding: 12px 14px;
  border-left: 2px solid var(--magenta);
  background: rgba(255, 46, 136, 0.07);
  font-size: 0.9rem;
  line-height: 1.78;
  color: rgba(242, 245, 250, 0.86);
}

.page-faq .faq-item + .faq-item {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px dashed rgba(27, 42, 61, 0.95);
}

.page-faq .faq-q {
  position: relative;
  margin: 0 0 8px;
  padding-left: 26px;
  font-family: var(--font-display);
  font-size: 1.04rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--frost);
}

.page-faq .faq-q::before {
  content: "Q";
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--magenta);
}

.page-faq .faq-a {
  margin: 0;
  padding-left: 26px;
  font-family: var(--font-body);
  font-size: 0.97rem;
  line-height: 1.82;
  color: rgba(242, 245, 250, 0.85);
}

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

.page-faq .faq-key {
  font-family: var(--font-mono);
  font-size: 0.86em;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-faq .faq-group__figure {
  margin: 26px 0 0 26px;
  max-width: 520px;
  border: var(--edge-w) solid var(--edge);
  box-shadow: var(--shadow-hard);
  background: var(--steel);
  overflow: hidden;
}

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

/* ---------- 底部入口 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 22px;
  margin-top: 70px;
  padding: 30px 22px;
  border: var(--edge-w) solid transparent;
  background:
    linear-gradient(var(--steel), var(--steel)) padding-box,
    linear-gradient(115deg, var(--magenta) 0%, var(--violet) 48%, var(--cyan) 100%) border-box;
  box-shadow: var(--shadow-magenta);
}

.page-faq .faq-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.42rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--frost);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(242, 245, 250, 0.85);
}

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

.page-faq .faq-cta__actions .btn,
.page-faq .faq-cta__actions .btn--ghost {
  transition: transform 160ms var(--ease), box-shadow 200ms var(--ease);
}

.page-faq .faq-cta__actions .btn:hover,
.page-faq .faq-cta__actions .btn:focus-visible,
.page-faq .faq-cta__actions .btn--ghost:hover,
.page-faq .faq-cta__actions .btn--ghost:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(255, 46, 136, 0.5);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-jump {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 20px;
    padding: 18px 22px;
  }

  .page-faq .faq-group__summary {
    grid-template-columns: 52px minmax(0, 1fr) auto 26px;
    gap: 16px;
    padding: 26px 6px;
  }

  .page-faq .faq-group__hint {
    display: block;
  }

  .page-faq .faq-group__body {
    padding: 4px 6px 34px 56px;
  }

  .page-faq .faq-group__figure {
    margin-left: 26px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero {
    padding-top: 46px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 56px;
    align-items: center;
    padding-bottom: 56px;
  }

  .page-faq .faq-groups {
    margin-top: 56px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 44px;
    padding: 38px 34px;
    margin-top: 82px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group__body {
    animation: none;
  }

  .page-faq .faq-group__summary,
  .page-faq .faq-group__num,
  .page-faq .faq-group__mark,
  .page-faq .faq-group__mark::before,
  .page-faq .faq-group__mark::after,
  .page-faq .faq-jump__tags a,
  .page-faq .faq-cta__actions .btn,
  .page-faq .faq-cta__actions .btn--ghost {
    transition: none;
  }
}