.page-faq {
  --faq-rail: 172px;
  --faq-lead: 54px;
  --faq-gap: 44px;
  display: block;
  background: var(--paper);
  color: var(--charcoal);
}

/* ---------- 页头 ---------- */
.page-faq .faq-head {
  position: relative;
  overflow: hidden;
  background: var(--paper);
  border-bottom: 2px solid var(--blue-ink);
  padding: 30px 0 40px;
}

.page-faq .faq-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, transparent 0 39px, rgba(139, 148, 158, .18) 39px 40px);
  pointer-events: none;
}

.page-faq .faq-head::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(46%, 520px);
  height: 100%;
  background: var(--blue);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  opacity: .08;
  pointer-events: none;
}

.page-faq .faq-head__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-kicker {
  margin: 26px 0 0;
  color: var(--muted);
}

.page-faq .faq-title {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-weight: 200;
  font-size: clamp(30px, 7.4vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--blue-ink);
  max-width: 18ch;
}

.page-faq .faq-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--charcoal);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  margin: 0;
  border-bottom: 2px solid var(--blue-ink);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--blue-ink);
}

.page-faq .faq-index__list li {
  flex: 1 1 150px;
  min-width: 0;
  border-right: 1px solid var(--silver);
  border-bottom: 1px solid var(--silver);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 16px;
  text-decoration: none;
  color: var(--charcoal);
  font-size: 14px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-bottom-color: var(--orange);
  background: var(--blue-tint);
  outline: none;
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--orange);
}

/* ---------- 分类骨架 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: 88px;
}

.page-faq .faq-cat {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-faq .faq-cat__rail {
  border-top: 4px solid var(--blue);
  padding-top: 12px;
}

.page-faq .faq-cat__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-faq .faq-cat__title {
  margin: 8px 0 0;
  font-size: clamp(21px, 4.6vw, 30px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--blue-ink);
}

.page-faq .faq-cat__hint {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-cat__body {
  min-width: 0;
}

/* ---------- 图位与流程图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 26px;
}

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

.page-faq .faq-flow {
  margin: 0 0 26px;
  padding: 16px 16px 14px;
  background: var(--white);
  border: 2px solid var(--silver-line);
}

.page-faq .faq-flow svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-flow__cap {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 2px solid var(--blue-ink);
}

.page-faq .qa {
  border-bottom: 1px solid var(--silver-line);
  background: transparent;
}

.page-faq .qa[open] {
  background: var(--blue-tint);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: baseline;
  padding: 18px 10px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--charcoal);
  transition: color .18s var(--ease);
}

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

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

.page-faq .qa__q:hover {
  color: var(--blue);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-faq .qa__text {
  min-width: 0;
}

.page-faq .qa__mark {
  position: relative;
  justify-self: end;
  width: 12px;
  height: 12px;
  align-self: center;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 12px;
  height: 2px;
  background: var(--blue);
  transition: transform .18s var(--ease), background-color .18s var(--ease);
}

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

.page-faq .qa[open] .qa__mark::after {
  transform: rotate(0deg);
}

.page-faq .qa__q:hover .qa__mark::before,
.page-faq .qa__q:hover .qa__mark::after {
  background: var(--orange);
}

.page-faq .qa__a {
  background: var(--blue-tint);
  border-left: 4px solid var(--blue);
  padding: 16px 16px 18px;
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--charcoal);
}

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

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

.page-faq .qa__steps {
  margin: 12px 0 12px;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
}

.page-faq .qa__steps li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 8px;
  counter-increment: faq-step;
}

.page-faq .qa__steps li:last-child {
  margin-bottom: 0;
}

.page-faq .qa__steps li::before {
  content: counter(faq-step);
  position: absolute;
  left: 0;
  top: 4px;
  width: 18px;
  height: 18px;
  line-height: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
  border: 1px solid var(--orange);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: .95em;
  color: var(--blue-ink);
  background: var(--white);
  border-bottom: 2px solid var(--orange);
  padding: 1px 4px;
  white-space: nowrap;
}

.page-faq .faq-link {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--silver-line);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  border-bottom-color: var(--orange);
  outline: none;
}

/* ---------- 标尺分隔 ---------- */
.page-faq .faq-ruler {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 40px 0;
}

.page-faq .faq-ruler__cap {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--silver-line);
  text-transform: uppercase;
  white-space: nowrap;
}

.page-faq .faq-ruler__line {
  flex: 1 1 auto;
  height: 7px;
  border-top: 1px solid var(--silver);
  background-image: repeating-linear-gradient(90deg, var(--silver) 0 1px, transparent 1px 10px);
}

/* ---------- 上报路径 ---------- */
.page-faq .faq-escalate {
  scroll-margin-top: 88px;
}

.page-faq .faq-up {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-up__label {
  color: var(--orange-soft);
  margin: 0;
}

.page-faq .faq-up__title {
  margin: 14px 0 0;
  color: var(--white);
}

.page-faq .faq-up__lede {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--blue-tint);
}

.page-faq .faq-up__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(192, 199, 208, .4);
}

.page-faq .faq-up__list li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(192, 199, 208, .4);
  font-size: 15px;
  line-height: 1.7;
  color: var(--blue-tint);
}

.page-faq .faq-up__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--orange);
  padding-top: 4px;
}

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

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-head {
    padding: 44px 0 56px;
  }

  .page-faq .qa__q {
    grid-template-columns: 42px minmax(0, 1fr) 22px;
    gap: 12px;
    padding: 20px 12px 20px 0;
    font-size: 16px;
  }

  .page-faq .qa__a {
    margin-left: var(--faq-lead);
    padding: 18px 22px 20px;
  }

  .page-faq .faq-ruler {
    padding: 52px 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-cat {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
  }

  .page-faq .faq-cat__rail {
    position: sticky;
    top: 84px;
    align-self: start;
    border-top-width: 6px;
    padding-top: 16px;
  }

  .page-faq .faq-up {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 72px;
  }
}