.page-faq {
  --faq-ink-soft: #0A5C4A;
  --faq-ink-mute: #33574E;
  --faq-paper-edge: rgba(10, 32, 27, .22);
  background: var(--ink-night);
  color: var(--text-on-dark);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏声明 ---------- */
.page-faq .faq-intro {
  padding: clamp(26px, 4.5vw, 48px) 0 clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--line-graphite);
}

.page-faq .faq-intro__title {
  margin: 18px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 6vw, 62px);
  line-height: 1.06;
  letter-spacing: -.015em;
  max-width: 17em;
  color: var(--text-on-dark);
}

.page-faq .faq-intro__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  color: var(--paper-mute);
}

.page-faq .faq-intro__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-intro__meta span {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan-signal);
  border: 1px solid var(--line-graphite);
  border-radius: var(--radius);
  padding: 6px 11px;
}

/* ---------- 主栅格 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 52px);
  padding-top: clamp(30px, 5vw, 60px);
}

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

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-rail__title {
  display: none;
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line-graphite);
  border-radius: var(--radius);
  color: var(--text-on-dark);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: border-color .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
}

.page-faq .faq-rail__num {
  font-size: 12px;
  color: var(--cyan-deep);
  letter-spacing: .06em;
}

.page-faq .faq-rail__link:hover {
  border-color: var(--cyan-signal);
  color: var(--cyan-signal);
}

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

@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(230px, 1fr) minmax(0, 1.9fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--frame-h) + 26px);
    max-height: calc(100vh - var(--frame-h) - 52px);
    overflow-y: auto;
  }

  .page-faq .faq-rail__title {
    display: block;
    margin: 0 0 14px;
    color: var(--cyan-deep);
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__item {
    display: block;
    margin-bottom: 2px;
  }

  .page-faq .faq-rail__link {
    display: flex;
    width: 100%;
    padding: 9px 12px;
    border-color: transparent;
    border-left: 2px solid var(--line-graphite);
    border-radius: 0;
    white-space: normal;
    font-size: 13.5px;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--cyan-signal);
    background: rgba(55, 245, 200, .07);
    color: var(--text-on-dark);
  }

  .page-faq .faq-rail__link:focus-visible {
    outline-offset: -2px;
  }
}

/* ---------- 分组与标题 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(34px, 5.5vw, 60px);
}

.page-faq .faq-group .section-head {
  margin-bottom: 20px;
}

.page-faq .faq-group .section-head__index {
  color: var(--cyan-deep);
  margin: 0;
}

.page-faq .faq-group .section-head__title {
  margin: 8px 0 0;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--text-on-dark);
}

/* ---------- 档案卡问答 ---------- */
.page-faq .faq-card {
  background: var(--paper-light);
  color: var(--text-on-paper);
  border: 2px solid var(--line-graphite);
  border-radius: var(--radius);
  margin-bottom: 14px;
  scroll-margin-top: calc(var(--frame-h) + 24px);
  box-shadow: 4px 4px 0 0 rgba(18, 181, 143, .28);
  transition: box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.page-faq .faq-card[open] {
  border-color: var(--cyan-deep);
  box-shadow: 6px 6px 0 0 rgba(18, 181, 143, .5);
}

.page-faq .faq-card__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(16px, 2.1vw, 19px);
  line-height: 1.4;
  color: var(--text-on-paper);
  transition: background-color .25s var(--ease);
}

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

.page-faq .faq-card__summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  min-width: 20px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--faq-ink-soft);
}

.page-faq .faq-card[open] .faq-card__summary::after {
  content: "–";
  color: var(--signal-orange);
}

.page-faq .faq-card__summary:hover {
  background: var(--paper-mute);
}

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

.page-faq .faq-card__num {
  flex: 0 0 auto;
  margin-top: 3px;
  padding: 3px 6px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--faq-ink-soft);
  border: 1px solid var(--faq-paper-edge);
  border-radius: 3px;
}

.page-faq .faq-card__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-card__answer {
  margin: 0 20px;
  padding: 16px 0 22px;
  border-top: 1px solid var(--faq-paper-edge);
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--text-on-paper);
}

.page-faq .faq-card__lead {
  margin: 0 0 12px;
  font-weight: 700;
}

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

.page-faq .faq-card__note {
  margin: 14px 0 0;
  padding-left: 12px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--faq-ink-mute);
  border-left: 3px solid var(--cyan-deep);
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.58;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faq-ink-soft);
  border-bottom: 2px solid var(--signal-orange);
}

/* ---------- 页内配图 ---------- */
.page-faq .faq-visual {
  margin: 4px 0 22px;
  max-width: 320px;
}

.page-faq .faq-visual .media__caption {
  color: var(--paper-mute);
}

/* ---------- 横向提示带 ---------- */
.page-faq .faq-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding: 15px 18px;
  margin: 6px 0 4px;
  background: var(--deep-pitch);
  border: 1px solid var(--line-graphite);
  border-left: 3px solid var(--cyan-signal);
  border-radius: var(--radius);
}

.page-faq .faq-band__text {
  flex: 1 1 220px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--text-on-dark);
}

.page-faq .faq-band__link {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan-signal);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid currentColor;
  white-space: nowrap;
  transition: color .25s var(--ease);
}

.page-faq .faq-band__link:hover {
  color: var(--signal-orange);
}

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

/* ---------- 客服区块 ---------- */
.page-faq .faq-service {
  position: relative;
  margin-top: clamp(30px, 5vw, 56px);
  border: 2px solid var(--line-graphite);
  border-radius: var(--radius);
  background: var(--deep-pitch);
  overflow: hidden;
  scroll-margin-top: calc(var(--frame-h) + 24px);
}

.page-faq .faq-service__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-faq .faq-service__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .26;
  filter: grayscale(.35) saturate(.5);
}

.page-faq .faq-service__inner {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 4vw, 46px);
}

.page-faq .faq-service__inner .eyebrow {
  color: var(--cyan-signal);
  margin: 0;
}

.page-faq .faq-service__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.14;
  color: var(--text-on-dark);
}

.page-faq .faq-service__text {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.62;
  color: var(--paper-mute);
}

.page-faq .faq-contact {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-faq .faq-contact__item {
  padding: 14px 16px;
  border: 1px solid var(--line-graphite);
  border-radius: var(--radius);
  background: rgba(6, 21, 18, .58);
}

.page-faq .faq-contact__key {
  display: block;
  margin-bottom: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-deep);
}

.page-faq .faq-contact__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.4;
  color: var(--text-on-dark);
  word-break: break-word;
}

.page-faq .faq-contact__value--phone {
  font-size: clamp(22px, 5vw, 32px);
  letter-spacing: .02em;
  color: var(--cyan-signal);
}

@media (min-width: 760px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 出口卡片 ---------- */
.page-faq .faq-more {
  margin-top: clamp(34px, 5vw, 60px);
}

.page-faq .faq-more .section-head {
  margin-bottom: 20px;
}

.page-faq .faq-more .section-head__index {
  color: var(--cyan-deep);
  margin: 0;
}

.page-faq .faq-more .section-head__title {
  margin: 8px 0 0;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.22;
  color: var(--text-on-dark);
}

.page-faq .faq-next {
  display: grid;
  gap: 16px;
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 24px;
  background: var(--deep-pitch);
  border: 2px solid var(--line-graphite);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-on-dark);
  transition: border-color .3s var(--ease), background-color .3s var(--ease), transform .3s var(--ease);
}

.page-faq .faq-next__card .eyebrow {
  color: var(--cyan-deep);
  margin: 0;
}

.page-faq .faq-next__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
  color: var(--text-on-dark);
}

.page-faq .faq-next__text {
  font-size: 14px;
  line-height: 1.62;
  color: var(--paper-mute);
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  border-color: var(--cyan-signal);
  background: var(--pitch-layer);
  transform: translateY(-3px);
}

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

@media (min-width: 760px) {
  .page-faq .faq-next {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }

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