.page-faq {
  padding-bottom: 40px;
}

.page-faq .crumbs {
  padding-top: 24px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 28px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-hero .display {
  margin: 14px 0 18px;
  max-width: 16em;
}

.page-faq .faq-hero .lede {
  max-width: 46em;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-hero__stamp {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

.page-faq .faq-hero__stamp:hover,
.page-faq .faq-hero__stamp:focus-visible {
  border-bottom-color: var(--bronze);
}

.page-faq .faq-hero__stamp .stamp__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-hero__stamp .stamp__value {
  font-family: var(--mono);
  font-size: 17px;
  color: var(--orange);
}

/* ---------- 四组入口卡 ---------- */
.page-faq .faq-groups {
  padding-top: 46px;
}

.page-faq .faq-groups__grid {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .faq-group {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 20px 20px 22px;
  background: var(--deep);
  border: 1px solid var(--hair);
  border-radius: 4px;
  text-decoration: none;
  color: inherit;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-group::after {
  content: "";
  position: absolute;
  left: 20px;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--bronze);
  transition: width 180ms var(--ease);
}

.page-faq .faq-group:hover,
.page-faq .faq-group:focus-visible {
  transform: translateY(-2px);
  border-color: var(--bronze);
  background: var(--lift);
}

.page-faq .faq-group:hover::after,
.page-faq .faq-group:focus-visible::after {
  width: 64px;
}

.page-faq .faq-group__idx {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: .08em;
  color: var(--bronze-lit);
}

.page-faq .faq-group__name {
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: .01em;
}

.page-faq .faq-group__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-group__count {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ---------- 问题分组列表 ---------- */
.page-faq .faq-list {
  padding-top: 54px;
  scroll-margin-top: 88px;
}

.page-faq .faq-list__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-list__no {
  flex: none;
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 300;
  line-height: 1;
  color: var(--bronze);
}

.page-faq .faq-list__head .h3 {
  margin: 0 0 4px;
}

.page-faq .faq-list__head .muted {
  font-size: 13px;
}

.page-faq .faq-list__items {
  display: grid;
  gap: 0;
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 4px 16px 0;
  cursor: pointer;
  list-style: none;
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-item__toggle {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid var(--hair);
  border-radius: 3px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-item__toggle::before,
.page-faq .faq-item__toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--bronze-lit);
  transform: translate(-50%, -50%);
  transition: opacity 180ms var(--ease);
}

.page-faq .faq-item__toggle::before {
  width: 8px;
  height: 1px;
}

.page-faq .faq-item__toggle::after {
  width: 1px;
  height: 8px;
}

.page-faq .faq-item[open] .faq-item__toggle::after {
  opacity: 0;
}

.page-faq .faq-item__text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .faq-item__q:hover .faq-item__text,
.page-faq .faq-item__q:hover .faq-item__toggle,
.page-faq .faq-item__q:focus-visible .faq-item__text {
  color: var(--bronze-lit);
}

.page-faq .faq-item__q:hover .faq-item__toggle {
  border-color: var(--bronze);
  background: rgba(200, 162, 106, .08);
}

.page-faq .faq-item[open] .faq-item__toggle {
  border-color: var(--bronze);
}

.page-faq .faq-item[open] .faq-item__text {
  color: var(--bronze-lit);
}

.page-faq .faq-item__a {
  padding: 0 4px 20px 30px;
  animation: faq-reveal 200ms var(--ease) both;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 52em;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 216, 200, .35);
}

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

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 设备分组配图 ---------- */
.page-faq .faq-device-figure {
  margin: 22px 0 4px;
}

.page-faq .faq-device-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.9);
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-steps {
  margin-top: 56px;
  padding: 34px 0 30px;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  background:
    linear-gradient(180deg, rgba(20, 51, 43, .55) 0%, rgba(20, 51, 43, .12) 100%);
}

.page-faq .faq-steps__rail {
  display: grid;
  gap: 30px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding-top: 40px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  top: 13px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--hair);
}

.page-faq .faq-step__node {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border: 1px solid var(--bronze);
  border-radius: 50%;
  background: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 300;
  color: var(--bronze-lit);
}

.page-faq .faq-step .h3 {
  margin: 0 0 8px;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 30em;
}

.page-faq .faq-steps__note {
  margin: 30px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-steps__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 216, 200, .35);
}

.page-faq .faq-steps__note a:hover,
.page-faq .faq-steps__note a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 旧版资料查找路径 ---------- */
.page-faq .faq-path {
  padding-top: 56px;
}

.page-faq .faq-path__body {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

.page-faq .faq-path__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-path;
}

.page-faq .faq-path__item {
  position: relative;
  padding: 0 0 22px 22px;
  border-left: 1px solid var(--hair);
}

.page-faq .faq-path__item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-faq .faq-path__item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(79, 216, 200, .12);
}

.page-faq .faq-path__key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--bronze-lit);
}

.page-faq .faq-path__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 44em;
}

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

.page-faq .faq-path__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.9);
}

/* ---------- 反馈流程 ---------- */
.page-faq .faq-feedback {
  margin-top: 56px;
  padding-top: 34px;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-feedback__flow {
  display: grid;
  gap: 2px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-fb;
}

.page-faq .faq-feedback__step {
  padding: 18px 20px 20px;
  background: var(--deep);
  border: 1px solid var(--hair);
  border-radius: 4px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-feedback__step:hover {
  border-color: var(--bronze);
  background: var(--lift);
}

.page-faq .faq-feedback__idx {
  display: block;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-faq .faq-feedback__step .h3 {
  margin: 0 0 6px;
}

.page-faq .faq-feedback__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 34em;
}

.page-faq .faq-feedback__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

/* ---------- 回顶 ---------- */
.page-faq .faq-top {
  margin: 44px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-top a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  text-decoration: none;
  transition: color 180ms var(--ease);
}

.page-faq .faq-top a:hover,
.page-faq .faq-top a:focus-visible {
  color: var(--bronze-lit);
}

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

  .page-faq .faq-feedback__flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 40px;
    padding-bottom: 56px;
  }

  .page-faq .faq-groups {
    padding-top: 62px;
  }

  .page-faq .faq-groups__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-list {
    padding-top: 70px;
  }

  .page-faq .faq-list__head {
    align-items: baseline;
  }

  .page-faq .faq-steps {
    margin-top: 72px;
    padding: 42px 0 38px;
  }

  .page-faq .faq-steps__rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-faq .faq-step {
    padding-top: 44px;
  }

  .page-faq .faq-path {
    padding-top: 72px;
  }

  .page-faq .faq-path__body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-path__figure {
    margin-top: -18px;
  }

  .page-faq .faq-feedback {
    margin-top: 72px;
    padding-top: 42px;
  }

  .page-faq .faq-feedback__flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }
}
<<<END>>>