.page-faq {
  --faq-aside: 240px;
  display: block;
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px var(--gap) 104px;
  color: var(--text);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 28px;
}

.page-faq .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .crumbs a:hover {
  color: var(--turf);
  border-bottom-color: var(--turf);
}

/* ---------- 首屏分屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-size: var(--fs-12);
  letter-spacing: 0.24em;
  color: var(--turf);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-size: clamp(52px, 12vw, 96px);
  font-weight: 900;
  line-height: 0.94;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-hero__intro {
  max-width: 620px;
  margin: 0 0 24px;
  color: var(--text);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-hero__facts .mono {
  color: var(--turf);
  font-size: var(--fs-18);
  margin-right: 6px;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--rail);
}

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

.page-faq .faq-hero__figure .frame__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 8px 12px;
  background: rgba(10, 26, 47, 0.82);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  padding-top: 48px;
}

/* ---------- 主题分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 64px;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 10px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-family: var(--font-head);
  font-size: var(--fs-24);
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--white);
}

.page-faq .faq-group__note {
  max-width: 560px;
  margin: 0 0 20px;
  font-size: var(--fs-14);
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- 横向图片带 ---------- */
.page-faq .faq-band {
  position: relative;
  margin: 0 0 32px;
  overflow: hidden;
  background: var(--rail);
}

.page-faq .faq-band img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 5;
  object-fit: cover;
}

.page-faq .faq-band .frame__cap {
  position: absolute;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 8px 12px;
  background: rgba(10, 26, 47, 0.82);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  position: relative;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 10px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary::after {
  content: "";
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--muted);
  border-bottom: 1px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  transform: rotate(-135deg);
  border-color: var(--turf);
}

.page-faq .faq-item > summary:hover .faq-item__q,
.page-faq .faq-item[open] > summary .faq-item__q {
  color: var(--white);
}

.page-faq .faq-item__no {
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--turf);
}

.page-faq .faq-item__q {
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__answer {
  padding: 0 24px 24px 44px;
}

.page-faq .faq-item__answer p {
  position: relative;
  max-width: 620px;
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}

.page-faq .faq-item__answer p::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 0.6em;
  bottom: 0.5em;
  width: 1px;
  background: var(--stripe);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.page-faq .faq-item[open] .faq-item__answer p::before {
  opacity: 1;
}

.page-faq .faq-item__answer a {
  color: var(--turf-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-item__answer a:hover {
  color: var(--white);
  border-bottom-color: var(--turf);
}

.page-faq .faq-item__answer .mono {
  word-break: break-all;
}

/* ---------- 右侧边注 ---------- */
.page-faq .faq-side {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-faq .faq-side__head {
  margin: 0 0 18px;
  font-size: var(--fs-12);
  letter-spacing: 0.24em;
  color: var(--muted);
}

.page-faq .faq-side__tags {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.page-faq .faq-side__tag {
  flex: 0 0 auto;
  writing-mode: vertical-rl;
  text-orientation: upright;
  padding: 16px 10px;
  min-height: 118px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--rail);
  font-size: var(--fs-12);
  letter-spacing: 0.24em;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-side__tag:hover,
.page-faq .faq-side__tag:focus-visible {
  color: var(--turf);
  border-color: var(--turf-soft);
  background: var(--card);
}

.page-faq .faq-side__cta {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-side__cta p {
  margin: 0 0 16px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 平板 ---------- */
@media (min-width: 768px) {
  .page-faq {
    padding-bottom: 120px;
  }

  .page-faq .faq-hero {
    gap: 40px;
    padding-bottom: 64px;
  }

  .page-faq .faq-hero__figure {
    aspect-ratio: 16 / 9;
  }

  .page-faq .faq-body {
    padding-top: 64px;
  }

  .page-faq .faq-item > summary {
    font-size: var(--fs-18);
    padding: 22px 0;
  }

  .page-faq .faq-group__title {
    font-size: var(--fs-34);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-faq {
    padding-left: calc(var(--rail-w) + var(--gap));
    padding-right: var(--gap);
    max-width: 1320px;
  }

  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 56px;
    align-items: end;
    padding-bottom: 80px;
  }

  .page-faq .faq-hero__figure {
    aspect-ratio: 3 / 4;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) var(--faq-aside);
    gap: 72px;
    padding-top: 80px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-side__tags {
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-side__tag {
    min-height: 132px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 80px;
  }
}