.page-faq {
  --faq-gap: clamp(34px, 6vw, 72px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .bw-crumbs {
  padding-top: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(26px, 4.5vw, 56px) clamp(34px, 5.5vw, 68px);
  border-bottom: 1px solid var(--bw-line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--bw-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--bw-line-soft) 1px, transparent 1px);
  background-size: 84px 84px;
  opacity: .6;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 24ch;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 62ch;
}

.page-faq .faq-hero__actions {
  margin: 26px 0 0;
}

.page-faq .faq-hero__stats {
  display: grid;
  gap: 18px 22px;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  padding-top: 20px;
  border-top: 1px solid var(--bw-line);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-left: 12px;
  border-left: 2px solid var(--bw-red);
}

.page-faq .faq-stat__label {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--bw-text-faint);
}

.page-faq .faq-stat__value {
  font-family: var(--bw-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1;
  color: var(--bw-white);
}

.page-faq .faq-stat__unit {
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--bw-text-dim);
}

/* ---------- 分类索引带 ---------- */
.page-faq .faq-index {
  padding-block: clamp(18px, 2.6vw, 26px);
  border-bottom: 1px solid var(--bw-line);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--bw-text-dim);
  background: var(--bw-asphalt);
  border: 1px solid var(--bw-line);
  text-decoration: none;
  clip-path: var(--bw-cut-path);
  transition: color .18s var(--bw-ease), border-color .18s var(--bw-ease), transform .18s var(--bw-ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--bw-white);
  border-color: var(--bw-red);
  transform: translateX(2px);
}

.page-faq .faq-index__no {
  font-size: 11px;
  color: var(--bw-amber);
}

/* ---------- 侧标索引 + 主体 ---------- */
.page-faq .faq-body {
  padding-top: var(--faq-gap);
}

.page-faq .faq-rail {
  display: none;
}

.page-faq .faq-rail__list {
  display: grid;
  gap: 2px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 0 9px 12px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--bw-text-faint);
  text-decoration: none;
  border-left: 1px solid var(--bw-line);
  transition: color .18s var(--bw-ease), border-color .18s var(--bw-ease), padding-left .18s var(--bw-ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible,
.page-faq .faq-rail__link.is-active {
  color: var(--bw-white);
  border-left-color: var(--bw-red);
  padding-left: 16px;
}

.page-faq .faq-rail__num {
  font-size: 11px;
  color: var(--bw-blue);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-top: var(--faq-gap);
}

.page-faq .faq-group:first-child {
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2vw, 22px);
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--bw-line);
}

.page-faq .faq-group__num {
  font-family: var(--bw-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1;
  color: var(--bw-amber);
}

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

.page-faq .faq-group__note {
  margin: 16px 0 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--bw-text-dim);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  margin-top: clamp(16px, 2.2vw, 22px);
}

.page-faq .faq-item {
  border-left: 3px solid transparent;
  border-bottom: 1px solid var(--bw-line-soft);
  transition: border-color .18s var(--bw-ease), background-color .18s var(--bw-ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--bw-red);
  background-color: rgba(200, 51, 43, .055);
}

.page-faq .faq-item__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: clamp(15px, 2.2vw, 20px) clamp(12px, 1.8vw, 20px);
  font-size: clamp(15.5px, 1.5vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--bw-white);
  transition: color .18s var(--bw-ease);
}

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

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

.page-faq .faq-item__q::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--bw-mono);
  font-size: 15px;
  color: var(--bw-blue);
  transition: color .18s var(--bw-ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "－";
  color: var(--bw-red);
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--bw-amber);
}

.page-faq .faq-item__a {
  padding: 0 clamp(12px, 1.8vw, 20px) clamp(18px, 2.4vw, 26px);
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--bw-text-dim);
}

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

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

.page-faq .faq-num {
  font-family: var(--bw-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.08em;
  color: var(--bw-amber);
}

.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 20px 0 0;
  padding-left: clamp(12px, 1.8vw, 20px);
  font-size: 13px;
}

.page-faq .faq-more a {
  color: var(--bw-text-dim);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--bw-line);
  transition: color .18s var(--bw-ease), border-color .18s var(--bw-ease);
}

.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  color: var(--bw-white);
  border-bottom-color: var(--bw-red);
}

/* ---------- 图文拆分 ---------- */
.page-faq .faq-figure {
  margin: clamp(22px, 3vw, 30px) 0 0;
}

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

/* ---------- 尾部 ---------- */
.page-faq .faq-outro {
  padding-top: var(--faq-gap);
}

.page-faq .faq-outro__panel {
  position: relative;
  padding: clamp(24px, 3.6vw, 46px);
  background: var(--bw-asphalt);
  border: 1px solid var(--bw-line);
  clip-path: var(--bw-cut-path);
  overflow: hidden;
}

.page-faq .faq-outro__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(var(--bw-slant), transparent 0 26px, rgba(200, 51, 43, .09) 26px 28px);
  pointer-events: none;
}

.page-faq .faq-outro__body {
  position: relative;
  z-index: 1;
  max-width: 70ch;
}

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

.page-faq .faq-outro__text {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--bw-text-dim);
}

.page-faq .faq-outro__tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 24px 0 0;
}

.page-faq .faq-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--bw-line);
  font-size: 13px;
}

.page-faq .faq-outro__links a {
  color: var(--bw-text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--bw-line);
  padding-bottom: 2px;
  transition: color .18s var(--bw-ease), border-color .18s var(--bw-ease);
}

.page-faq .faq-outro__links a:hover,
.page-faq .faq-outro__links a:focus-visible {
  color: var(--bw-white);
  border-bottom-color: var(--bw-red);
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-split {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 48px);
    align-items: start;
  }

  .page-faq .faq-split .faq-list {
    margin-top: 0;
  }

  .page-faq .faq-figure {
    position: sticky;
    top: 132px;
    margin-top: clamp(16px, 2.2vw, 22px);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-faq .faq-hero__stats {
    align-self: end;
  }
}

@media (min-width: 1025px) {
  .page-faq .faq-body {
    display: grid;
    grid-template-columns: var(--bw-rail) minmax(0, 1fr);
    gap: clamp(28px, 3.5vw, 56px);
    align-items: start;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 132px;
    align-self: start;
  }
}

@media (max-width: 719px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-item__q {
    gap: 12px;
  }

  .page-faq .faq-outro__panel {
    clip-path: none;
  }
}