.page-faq {
  --faq-dot: 9px;
  --faq-rail: 30px;
  padding-bottom: clamp(36px, 6vw, 88px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding: 18px 0 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-faq .faq-crumbs a {
  color: var(--mist);
  text-decoration: none;
}
.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(10px, 2vw, 26px);
}
.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
}
.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(32px, 8.4vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.035em;
}
.page-faq .faq-hero__lede {
  margin-top: 18px;
  max-width: 40ch;
  color: var(--mist);
  font-size: var(--fs-16);
  line-height: 1.8;
}
.page-faq .faq-hero__side {
  align-self: end;
}
.page-faq .faq-meter {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-meter li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line);
}
.page-faq .faq-meter li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-meter__k {
  font-size: var(--fs-12);
  color: var(--mist);
  letter-spacing: 0.06em;
}
.page-faq .faq-meter__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-16);
  color: var(--paper);
}
.page-faq .faq-hero__note {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 路径示意 ---------- */
.page-faq .faq-map {
  padding-top: clamp(28px, 4vw, 52px);
}
.page-faq .faq-map__frame {
  margin: 0;
}
.page-faq .faq-map__frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index-head {
  max-width: 62ch;
}
.page-faq .faq-filter {
  margin-top: 20px;
  margin-bottom: 26px;
}
.page-faq .faq-index {
  margin: 0;
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr);
}
.page-faq .faq-index__item {
  min-width: 0;
}
.page-faq .faq-index__item[hidden] {
  display: none;
}
.page-faq .faq-index__link {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 4px 12px;
  min-height: 108px;
  padding: 16px 18px 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  color: var(--paper);
  text-decoration: none;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}
.page-faq .faq-index__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 3px;
  height: 18px;
  background: var(--steel);
  border-radius: 0 2px 2px 0;
  transition: background 180ms var(--ease);
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: var(--panel-2);
}
.page-faq .faq-index__link:hover::before,
.page-faq .faq-index__link:focus-visible::before {
  background: var(--cyan);
}
.page-faq .faq-index__name {
  font-family: var(--font-head);
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: -0.012em;
  line-height: 1.4;
  grid-column: 2;
}
.page-faq .faq-index__count {
  grid-column: 2;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-12);
  color: var(--steel);
}
.page-faq .faq-index__link .tag {
  grid-column: 2;
  justify-self: start;
}

/* ---------- 高频通道 ---------- */
.page-faq .faq-hot__head {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
}
.page-faq .faq-hot__intro {
  max-width: 58ch;
}
.page-faq .faq-hot__figure {
  margin: 0;
  max-width: 320px;
}
.page-faq .faq-hot__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-scenes {
  display: grid;
  gap: clamp(30px, 4.5vw, 58px);
  margin-top: clamp(28px, 4vw, 48px);
}
.page-faq .faq-scene__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-scene__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--lava);
}
.page-faq .faq-scene__head .h3 {
  margin: 0;
  font-size: var(--fs-20);
}
.page-faq .faq-scene__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--mist);
}

/* 步骤手风琴：侧边竖线与序号圆点 */
.page-faq .faq-steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}
.page-faq .step {
  position: relative;
  padding-left: var(--faq-rail);
}
.page-faq .step::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
.page-faq .step:last-child::before {
  background: linear-gradient(180deg, var(--line), transparent);
}
.page-faq .step::after {
  content: "";
  position: absolute;
  left: calc(9px - (var(--faq-dot) - 1px) / 2);
  top: 22px;
  width: var(--faq-dot);
  height: var(--faq-dot);
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--steel);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}
.page-faq .step[data-open]::after,
.page-faq .step:has(.step__head[aria-expanded="true"])::after {
  background: var(--lava);
  border-color: var(--lava);
}
.page-faq .step__head {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 4px;
  background: none;
  border: 0;
  color: var(--paper);
  font-family: var(--font-head);
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: -0.012em;
  text-align: left;
  cursor: pointer;
  transition: color 180ms var(--ease);
}
.page-faq .step__head:hover,
.page-faq .step__head:focus-visible {
  color: var(--cyan);
}
.page-faq .step__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--steel);
  letter-spacing: 0.1em;
}
.page-faq .step__title {
  min-width: 0;
}
.page-faq .step__chevron {
  flex: none;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--mist);
  border-bottom: 1.5px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 220ms var(--ease);
}
.page-faq .step__head[aria-expanded="true"] .step__chevron {
  transform: rotate(-135deg);
  border-color: var(--lava);
}
.page-faq .step__body {
  display: none;
  padding: 2px 4px 22px;
}
.page-faq .step__head[aria-expanded="true"] + .step__body {
  display: block;
  animation: faq-open 220ms var(--ease);
}
@keyframes faq-open {
  from { opacity: 0; transform: translateY(-3px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-faq .faq-steps__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}
.page-faq .faq-steps__ref {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--mist);
}
.page-faq .faq-flow {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
}
.page-faq .faq-flow li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 36px;
  margin-bottom: 12px;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--mist);
}
.page-faq .faq-flow li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 3px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  border: 1px solid var(--line);
  border-radius: 50%;
}
.page-faq .faq-flow li:last-child {
  margin-bottom: 0;
}
.page-faq .step__body .callout {
  max-width: 62ch;
  font-size: var(--fs-14);
  line-height: 1.7;
}

/* ---------- 横向主题带 ---------- */
.page-faq .faq-band {
  margin-block: clamp(30px, 5vw, 62px);
}
.page-faq .faq-band__side {
  margin: 10px 0 0;
  font-size: var(--fs-14);
  color: var(--mist);
  line-height: 1.7;
}

/* ---------- 其余四类 ---------- */
.page-faq .faq-rest__head {
  max-width: 62ch;
}
.page-faq .faq-rest__grid {
  margin-top: clamp(22px, 3vw, 36px);
  align-items: stretch;
}
.page-faq .faq-group {
  display: flex;
  flex-direction: column;
}
.page-faq .faq-group__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}
.page-faq .faq-group__list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}
.page-faq .faq-group__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-group__t {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--paper);
  min-width: 0;
}

/* ---------- 回访核对清单 ---------- */
.page-faq .faq-checklist__head {
  max-width: 62ch;
}
.page-faq .faq-copy {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(20px, 3vw, 34px);
}
.page-faq .faq-copy__block {
  margin: 0;
  padding: clamp(18px, 3vw, 28px);
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 2;
  white-space: pre-wrap;
  overflow-x: auto;
  max-width: 100%;
}
.page-faq .faq-copy__act {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.page-faq .faq-copy__hint {
  margin: 0;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--mist);
  max-width: 34ch;
}

/* ---------- 未解决去向 ---------- */
.page-faq .faq-next__inner {
  display: grid;
  gap: clamp(22px, 3.5vw, 44px);
  grid-template-columns: minmax(0, 1fr);
}
.page-faq .faq-next__text {
  max-width: 54ch;
}
.page-faq .faq-next__link {
  margin: 18px 0 0;
  font-size: var(--fs-14);
}
.page-faq .faq-next__link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}
.page-faq .faq-next__link a:hover,
.page-faq .faq-next__link a:focus-visible {
  border-bottom-color: var(--cyan);
}
.page-faq .faq-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-faq .faq-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}
.page-faq .faq-contact li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-contact__k {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--steel);
  min-width: 5.5em;
}
.page-faq .faq-contact__v {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .faq-next__rule {
  margin: clamp(30px, 4vw, 52px) 0 16px;
}
.page-faq .faq-next__foot {
  margin: 0;
  max-width: 60ch;
  font-size: var(--fs-12);
  line-height: 1.8;
  color: var(--mist);
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: end;
  }
  .page-faq .faq-hot__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: end;
  }
  .page-faq .faq-hot__figure {
    margin-left: auto;
  }
  .page-faq .faq-copy {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: start;
  }
  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-scene__head {
    flex-wrap: nowrap;
  }
}

@media (max-width: 639px) {
  .page-faq .faq-copy__block {
    font-size: 11px;
    line-height: 1.9;
  }
  .page-faq .faq-scene__count {
    margin-left: 0;
    width: 100%;
  }
  .page-faq .faq-contact__k {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .step__chevron,
  .page-faq .step::after {
    transition: none;
  }
  .page-faq .step__head[aria-expanded="true"] + .step__body {
    animation: none;
  }
}
<<<END>>>