.page-faq {
  --faq-paper-edge: var(--paper-2);
  --faq-gap: clamp(12px, 2vw, 18px);
  background: var(--ink-900);
  color: var(--paper);
  padding-top: clamp(20px, 4vw, 36px);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏声明 ---------- */
.page-faq .faq-masthead {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 28px);
  align-items: start;
  padding-bottom: clamp(28px, 5vw, 48px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(32px, 6vw, 64px);
}

.page-faq .faq-masthead__stamp {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-self: start;
  padding: 12px 16px;
  background: var(--ink-700);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-notch);
  width: max-content;
}

.page-faq .faq-masthead__stamp-num {
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-masthead__stamp-line {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.page-faq .faq-masthead__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(28px, 5.6vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-masthead__lead {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-masthead__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 3vw, 32px);
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-masthead__fact {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-masthead__fact .stat-num {
  font-size: 22px;
}

/* ---------- 坐标索引 ---------- */
.page-faq .faq-index {
  margin-bottom: clamp(32px, 6vw, 56px);
}

.page-faq .faq-index .chapter-head {
  margin-bottom: 20px;
}

.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .faq-index__cell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 16px 18px;
  background: var(--paper);
  color: var(--paper-ink);
  text-decoration: none;
  border-radius: var(--radius-card) var(--radius-notch) var(--radius-card) var(--radius-notch);
  border-left: 4px solid var(--wood);
  transition: transform var(--step), border-color var(--step), box-shadow var(--step);
}

.page-faq .faq-index__cell:hover,
.page-faq .faq-index__cell:focus-visible {
  transform: translateY(-2px);
  border-left-color: var(--orange);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-index__coord {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-index__name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-index__count {
  font-size: 12px;
  color: var(--paper-soft);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(36px, 6vw, 64px);
}

.page-faq .faq-figure--inset {
  margin: 0 0 22px;
}

.page-faq .faq-figure .media-frame__caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-block {
  margin-bottom: clamp(30px, 5vw, 54px);
  scroll-margin-top: 96px;
}

.page-faq .faq-block__head {
  margin-bottom: 18px;
}

.page-faq .faq-block__head::before {
  content: "";
  display: block;
  width: 56px;
  height: 8px;
  margin-bottom: 14px;
  background: var(--wood);
  border-radius: 2px;
}

.page-faq .faq-block__coord {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 9px;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--paper-ink);
  background: var(--orange);
  border-radius: var(--radius-notch);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-block__title {
  margin: 0 0 8px;
  font-size: clamp(21px, 3.4vw, 29px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-block__desc {
  margin: 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-block__items {
  display: grid;
  gap: 10px;
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  background: var(--paper);
  border-left: 4px solid var(--wood);
  border-radius: var(--radius-card) var(--radius-notch) var(--radius-card) var(--radius-notch);
  overflow: hidden;
  transition: background var(--step), border-color var(--step);
}

.page-faq .faq-item[open] {
  background: var(--faq-paper-edge);
  border-left-color: var(--orange);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 16px 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--paper-ink);
  transition: color var(--step);
}

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

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

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

.page-faq .faq-item__q-num {
  flex: none;
  padding-top: 2px;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--paper-soft);
  font-variant-numeric: tabular-nums;
}

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

.page-faq .faq-item__q-text {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

.page-faq .faq-item__q-mark {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1.5px solid var(--wood);
  border-radius: 50%;
  transition: border-color var(--step), background var(--step);
}

.page-faq .faq-item__q-mark::before,
.page-faq .faq-item__q-mark::after {
  content: "";
  position: absolute;
  background: var(--wood);
  transition: transform var(--step), background var(--step);
}

.page-faq .faq-item__q-mark::before {
  left: 50%;
  top: 5px;
  bottom: 5px;
  width: 1.5px;
  transform: translateX(-50%);
}

.page-faq .faq-item__q-mark::after {
  top: 50%;
  left: 5px;
  right: 5px;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-faq .faq-item[open] .faq-item__q-mark {
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .faq-item[open] .faq-item__q-mark::before,
.page-faq .faq-item[open] .faq-item__q-mark::after {
  background: var(--paper);
}

.page-faq .faq-item[open] .faq-item__q-mark::before {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 18px 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: #443428;
  max-width: 46em;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__a a {
  color: #A33C0B;
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 700;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--orange);
}

/* ---------- 延伸去向 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(36px, 6vw, 64px);
  padding-top: clamp(24px, 4vw, 36px);
  border-top: 8px solid var(--wood);
}

.page-faq .faq-outro__title {
  margin: 0 0 18px;
  font-size: clamp(19px, 3vw, 25px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-outro__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-outro__item {
  margin: 0;
}

.page-faq .faq-outro__link {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 15px 16px;
  background: var(--ink-700);
  color: var(--paper);
  text-decoration: none;
  border-radius: var(--radius-card) var(--radius-notch) var(--radius-card) var(--radius-notch);
  border-left: 4px solid transparent;
  transition: background var(--step), border-color var(--step), transform var(--step);
}

.page-faq .faq-outro__link:hover,
.page-faq .faq-outro__link:focus-visible {
  background: var(--ink-500);
  border-left-color: var(--orange);
  transform: translateY(-2px);
}

.page-faq .faq-outro__link-name {
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-outro__link-note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-outro__note {
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-outro__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-masthead {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 44px);
  }

  .page-faq .faq-index__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-index__cell {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 8px;
    padding: 20px 16px 22px;
    min-height: 132px;
  }

  .page-faq .faq-index__coord {
    font-size: 22px;
  }

  .page-faq .faq-index__count {
    margin-top: auto;
  }

  .page-faq .faq-item__q {
    padding: 18px 22px 18px 24px;
  }

  .page-faq .faq-item__q-text {
    font-size: 16px;
  }

  .page-faq .faq-item__a {
    padding: 0 24px 22px 24px;
  }

  .page-faq .faq-outro__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-block {
    padding-left: 72px;
    position: relative;
  }

  .page-faq .faq-block__coord {
    position: absolute;
    left: 0;
    top: 22px;
    margin: 0;
    min-width: 46px;
    text-align: center;
  }

  .page-faq .faq-item__a {
    padding-left: 62px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__cell,
  .page-faq .faq-item,
  .page-faq .faq-item__q-mark,
  .page-faq .faq-item__q-mark::before,
  .page-faq .faq-item__q-mark::after,
  .page-faq .faq-outro__link {
    transition: none;
  }

  .page-faq .faq-index__cell:hover,
  .page-faq .faq-index__cell:focus-visible,
  .page-faq .faq-outro__link:hover,
  .page-faq .faq-outro__link:focus-visible {
    transform: none;
  }
}