.page-faq {
  --faq-ochre-ink: #8F3A19;
  --faq-gap: clamp(48px, 7vw, 96px);
  background: var(--ink);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.62;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-top: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: clamp(20px, 3vw, 32px) 0 clamp(28px, 4vw, 46px);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--ochre-lt);
}

.page-faq h1 {
  margin: 14px 0 0;
  font-size: clamp(1.95rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: clamp(0.97rem, 1.4vw, 1.06rem);
  color: var(--rock-lt);
}

.page-faq .faq-hero__note {
  border-left: 3px solid var(--ochre);
  padding: 4px 0 4px 18px;
}

.page-faq .faq-hero__note > .faq-note-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--rock-lt);
}

.page-faq .faq-hero__note p {
  margin: 0 0 18px;
  max-width: 36ch;
  font-size: 0.95rem;
}

.page-faq .faq-hero__frame {
  border-top: 2px solid var(--rock);
  border-bottom: 2px solid var(--rock);
  background: var(--ink-2);
}

.page-faq .faq-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.06);
}

/* ---------- 分类跳转条 ---------- */

.page-faq .faq-tags {
  background: var(--ink-2);
  border-bottom: 2px solid var(--rock);
}

.page-faq .faq-tags__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  padding: 16px 0;
}

.page-faq .faq-tags__label {
  margin-right: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--rock-lt);
}

.page-faq .faq-tags__inner a {
  padding: 6px 12px;
  border: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--c-text);
  text-decoration: none;
  transition: border-color 0.12s var(--ease), color 0.12s var(--ease), background-color 0.12s var(--ease);
}

.page-faq .faq-tags__inner a:hover,
.page-faq .faq-tags__inner a:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
  background: rgba(198, 242, 78, 0.06);
}

/* ---------- 章节 ---------- */

.page-faq .faq-sec {
  padding: var(--faq-gap) 0;
}

.page-faq .faq-sec + .faq-sec {
  border-top: 1px solid var(--hair);
}

.page-faq .faq-sec--pine {
  background: var(--pine);
  border-top-color: transparent;
}

.page-faq .faq-sec--pine + .faq-sec {
  border-top-color: transparent;
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .faq-sec__no {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ochre);
}

.page-faq .faq-sec h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.015em;
}

.page-faq .faq-sec__desc {
  margin: 0;
  max-width: 58ch;
  font-size: 0.95rem;
  color: var(--rock-lt);
}

/* ---------- 问答折叠组 ---------- */

.page-faq .faq-list {
  border-top: 1px solid var(--hair);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.12s var(--ease);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover {
  background: rgba(242, 237, 230, 0.03);
}

.page-faq .faq-item__idx {
  flex: none;
  padding-top: 0.2em;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ochre);
}

.page-faq .faq-item__q {
  margin-right: auto;
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  font-weight: 700;
  line-height: 1.42;
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--ochre-lt);
}

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-left: 18px;
  align-self: center;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
  background: var(--ochre);
  transition: transform 0.2s var(--ease), opacity 0.16s var(--ease), background-color 0.16s var(--ease);
}

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

.page-faq .faq-item__icon::before {
  transition: transform 0.2s var(--ease), opacity 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-faq .faq-item[open] .faq-item__icon::before {
  background: var(--lime);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: clamp(16px, 2.4vw, 24px) clamp(16px, 2.6vw, 28px);
  background: var(--paper);
  color: var(--ink);
  border-left: 4px solid var(--ochre);
  animation: faq-drop 0.22s var(--ease);
}

.page-faq .faq-item__body p {
  margin: 0 0 0.85em;
  max-width: 66ch;
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 1.06em;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--faq-ochre-ink);
}

@keyframes faq-drop {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 横向提示带 ---------- */

.page-faq .faq-cue {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  margin-top: clamp(28px, 4vw, 44px);
  padding: 18px 20px;
  border: 2px solid var(--ochre);
  background: linear-gradient(90deg, rgba(194, 84, 43, 0.16), rgba(194, 84, 43, 0) 68%);
}

.page-faq .faq-cue p {
  margin: 0;
  max-width: 56ch;
  font-size: 0.94rem;
}

.page-faq .faq-cue a {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime);
  padding-bottom: 2px;
  white-space: nowrap;
}

.page-faq .faq-cue a span {
  display: inline-block;
  transition: transform 0.16s var(--ease);
}

.page-faq .faq-cue a:hover span,
.page-faq .faq-cue a:focus-visible span {
  transform: translateX(4px);
}

/* ---------- 检索章节的两栏 ---------- */

.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-faq .faq-split__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 2px solid var(--rock);
  filter: contrast(1.05) saturate(0.94);
}

.page-faq .faq-split__cap {
  margin: 14px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--ochre);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--rock-lt);
}

/* ---------- 结尾按钮组 ---------- */

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 3.6vw, 40px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-sec__head {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    column-gap: clamp(28px, 5vw, 72px);
    align-items: end;
  }

  .page-faq .faq-sec__no {
    grid-column: 1;
    grid-row: 1;
  }

  .page-faq .faq-sec h2 {
    grid-column: 1;
    grid-row: 2;
  }

  .page-faq .faq-sec__desc {
    grid-column: 2;
    grid-row: 2;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: clamp(32px, 5vw, 76px);
    align-items: end;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}

@media (max-width: 719px) {
  .page-faq .faq-hero__frame img {
    aspect-ratio: 4 / 3;
  }

  .page-faq .faq-tags__inner {
    gap: 7px 8px;
  }

  .page-faq .faq-tags__inner a {
    padding: 5px 10px;
    font-size: 0.74rem;
  }

  .page-faq .faq-item > summary {
    gap: 10px;
    padding: 17px 0;
  }

  .page-faq .faq-item__icon {
    margin-left: 10px;
  }

  .page-faq .faq-item__body {
    border-left-width: 3px;
  }

  .page-faq .faq-cue a {
    white-space: normal;
  }
}