.page-faq {
  --faq-gap: clamp(3rem, 8vw, 6.5rem);
  --faq-rule: var(--ink-line);
  background: var(--moon);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-17);
  line-height: 1.9;
  overflow-x: hidden;
}

.page-faq a {
  color: inherit;
  text-decoration: none;
}

.page-faq :focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

.page-faq .prose {
  max-width: 34em;
}

/* ---------- 面包屑 ---------- */

.page-faq .faq-crumb {
  padding-block: clamp(1rem, 3vw, 2rem) .5rem;
}

.page-faq .faq-crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem .6rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--ink-soft);
}

.page-faq .faq-crumb__item a {
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-crumb__item a:hover {
  color: var(--cinnabar-deep);
  border-bottom-color: var(--cinnabar);
}

.page-faq .faq-crumb__item--current {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-block: clamp(1.5rem, 5vw, 3rem) var(--faq-gap);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--ochre);
}

.page-faq .faq-hero__title {
  margin: 0 0 1.5rem;
  max-width: 18em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  color: var(--ink-soft);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin: 2.5rem 0 0;
  padding: 1.5rem 0 0;
  list-style: none;
  border-top: 1px solid var(--ink-line-strong);
}

.page-faq .faq-fact {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  padding-left: .85rem;
  border-left: 2px solid var(--ochre);
}

.page-faq .faq-fact__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-34);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.page-faq .faq-fact__label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--ink-soft);
}

/* ---------- 场景总览 ---------- */

.page-faq .faq-overview {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-overview__head {
  margin-bottom: 2.5rem;
}

.page-faq .faq-overview__head .section-head__title {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.125rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-overview__head .section-head__lead {
  margin: 0;
  color: var(--ink-soft);
}

.page-faq .frame-media {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--ink-line-strong);
  border-radius: var(--radius);
}

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

.page-faq .faq-overview__media {
  aspect-ratio: 3 / 2;
  margin-bottom: 2.5rem;
}

.page-faq .faq-scenes {
  display: grid;
  gap: 0;
}

.page-faq .faq-scene-group {
  padding: 1.5rem 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-scene-group:last-child {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-scene-group__label {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--ochre);
}

.page-faq .faq-scene-list {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: baseline;
  gap: .5rem;
  padding: .5rem .85rem;
  background: var(--paper);
  border: 1px solid var(--ink-line-strong);
  border-radius: var(--radius);
  font-size: var(--fs-13);
  line-height: 1.4;
  transition: background .2s var(--ease), color .2s var(--ease),
    border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-chip__id {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--ochre);
  transition: color .2s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--ink);
  color: var(--moon);
  border-color: var(--ink);
  transform: translateY(-2px);
}

.page-faq .faq-chip:hover .faq-chip__id,
.page-faq .faq-chip:focus-visible .faq-chip__id {
  color: var(--cinnabar);
}

/* ---------- 折叠面板 ---------- */

.page-faq .faq-guide {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-guide__head {
  margin-bottom: 2rem;
}

.page-faq .faq-guide__head .section-head__title {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.125rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-guide__head .section-head__lead {
  margin: 0;
  color: var(--ink-soft);
}

.page-faq .faq-panels {
  border-top: 1px solid var(--ink-line-strong);
}

.page-faq .faq-panel {
  border-bottom: 1px solid var(--faq-rule);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-panel__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: .45rem .9rem;
  padding: 1.15rem .25rem;
  cursor: pointer;
  list-style: none;
  transition: background .2s var(--ease);
}

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

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

.page-faq .faq-panel__summary:hover {
  background: rgba(16, 20, 24, .04);
}

.page-faq .faq-panel__id {
  grid-column: 1;
  grid-row: 1;
  align-self: center;
  padding: .18rem .5rem;
  background: var(--ochre);
  color: var(--paper);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.5;
  letter-spacing: .06em;
}

.page-faq .faq-panel__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-17);
  line-height: 1.45;
}

.page-faq .faq-panel__summary::after {
  content: "+";
  grid-column: 3;
  grid-row: 1;
  align-self: center;
  font-family: var(--font-mono);
  font-size: var(--fs-17);
  line-height: 1;
  color: var(--cinnabar);
}

.page-faq .faq-panel[open] .faq-panel__summary::after {
  content: "–";
}

.page-faq .faq-panel__hint {
  grid-column: 2 / -1;
  grid-row: 2;
  font-size: var(--fs-13);
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-panel__body {
  padding: .25rem .25rem 1.75rem;
  max-width: 46rem;
}

.page-faq .faq-panel__body > p {
  margin: 0 0 1rem;
}

.page-faq .faq-panel__label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--ochre);
  margin: 0 0 .4rem;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 2rem;
  margin-bottom: .55rem;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: .55rem;
  display: grid;
  place-items: center;
  width: 1.15rem;
  height: 1.15rem;
  background: var(--ochre);
  color: var(--paper);
  border-radius: 1px;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
}

.page-faq .faq-panel__result {
  border-left: 2px solid var(--moss);
  padding-left: .9rem;
  color: var(--ink-soft);
  margin: 0;
}

.page-faq .faq-panel__foot {
  margin: 1.1rem 0 0;
}

.page-faq .faq-ask {
  display: inline-block;
  padding: .35rem .75rem;
  border: 1px solid var(--ink-line-strong);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--ink-soft);
  transition: background .2s var(--ease), color .2s var(--ease),
    border-color .2s var(--ease);
}

.page-faq .faq-ask:hover,
.page-faq .faq-ask:focus-visible {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}

/* ---------- 人群切换 ---------- */

.page-faq .faq-switch {
  background: var(--dai-deep);
  color: var(--moon);
  padding-block: clamp(2.5rem, 7vw, 5rem);
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-switch__inner {
  display: grid;
  gap: 2.25rem;
}

.page-faq .faq-switch .eyebrow {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--cinnabar);
}

.page-faq .faq-switch__title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.125rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-switch__text p {
  margin: 0 0 1rem;
  max-width: 34em;
  color: rgba(244, 241, 234, .84);
}

.page-faq .faq-switch__note {
  padding-left: .9rem;
  border-left: 2px solid var(--cinnabar);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .04em;
  color: rgba(244, 241, 234, .72) !important;
}

.page-faq .faq-switch__media {
  aspect-ratio: 10 / 7;
  border-color: rgba(244, 241, 234, .28);
  background: var(--dai);
}

.page-faq .faq-switch__media .frame-media__caption {
  display: block;
  padding: .65rem .85rem;
  background: rgba(14, 46, 58, .82);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: rgba(244, 241, 234, .72);
}

/* ---------- 检索问答 ---------- */

.page-faq .faq-search {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-search__head {
  margin-bottom: 2rem;
}

.page-faq .faq-search__head .section-head__title {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.125rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-search__head .section-head__lead {
  margin: 0;
  color: var(--ink-soft);
}

.page-faq .faq-qa {
  margin: 0;
  border-top: 1px solid var(--ink-line-strong);
}

.page-faq .faq-qa__item {
  display: grid;
  gap: .5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-qa__q {
  position: relative;
  padding-left: 1.15rem;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-22);
  line-height: 1.4;
}

.page-faq .faq-qa__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .55rem;
  height: 2px;
  background: var(--cinnabar);
}

.page-faq .faq-qa__a {
  margin: 0;
  max-width: 40rem;
  color: var(--ink-soft);
}

/* ---------- 移动端说明 ---------- */

.page-faq .faq-mobile {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-mobile__head {
  margin-bottom: 2rem;
}

.page-faq .faq-mobile__head .section-head__title {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.125rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-mobile__head .section-head__lead {
  margin: 0;
  color: var(--ink-soft);
}

.page-faq .faq-mobile__grid {
  display: grid;
  gap: 1.25rem;
}

.page-faq .faq-mobile__col {
  padding: 1.5rem 1.35rem;
  background: rgba(255, 255, 255, .62);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-mobile__col-title {
  margin: 0 0 1rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--ink-line);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-17);
}

.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 1.35rem;
  margin-bottom: .7rem;
  font-size: var(--fs-13);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: .55rem;
  height: .55rem;
  background: var(--dai);
  border-radius: 1px;
}

.page-faq .faq-check--alt li::before {
  background: var(--ochre);
}

/* ---------- 联系入口 ---------- */

.page-faq .faq-cta {
  background: var(--ink);
  color: var(--moon);
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-cta .eyebrow {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--cinnabar);
}

.page-faq .faq-cta__title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.4vw, 2.125rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-cta__text p {
  margin: 0 0 1rem;
  max-width: 36em;
  color: rgba(244, 241, 234, .8);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.page-faq .faq-cta__btn {
  display: inline-block;
  padding: .7rem 1.4rem;
  border-radius: var(--radius);
  font-size: var(--fs-13);
  letter-spacing: .06em;
  transition: transform .2s var(--ease), background .2s var(--ease),
    color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-cta__btn:hover {
  transform: translateY(-2px);
}

.page-faq .faq-cta__btn--line {
  border: 1px solid rgba(244, 241, 234, .4);
  color: var(--moon);
}

.page-faq .faq-cta__btn--line:hover {
  background: rgba(244, 241, 234, .12);
  border-color: var(--moon);
}

/* ---------- 中等屏幕 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-mobile__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .page-faq .faq-qa__item {
    grid-template-columns: 20rem 1fr;
    gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 3rem;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}

/* ---------- 宽屏 ---------- */

@media (min-width: 980px) {
  .page-faq .faq-overview__media {
    aspect-ratio: 21 / 9;
  }

  .page-faq .faq-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 3rem;
  }

  .page-faq .faq-scene-group {
    padding: 1.75rem 0;
  }

  .page-faq .faq-switch__inner {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}