.page-faq {
  --faq-axis-w: 236px;
  --faq-line: var(--c-line);
  --faq-body: #46585D;
  --faq-soft: #6E8188;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: calc(var(--hdr-h) + 26px);
  padding-bottom: 56px;
  background: var(--grad-mist);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(46, 58, 62, .055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 58, 62, .055) 1px, transparent 1px);
  background-size: 52px 52px;
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: 28px;
  font-size: 13px;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-slate);
}

.page-faq .breadcrumb a {
  color: var(--faq-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--c-neon-deep);
  border-bottom-color: var(--c-neon-deep);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--c-ink);
  font-weight: 500;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-faq .faq-hero-copy .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-neon-deep);
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(1.9rem, 5.2vw, 3.05rem);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--c-ink);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-quick-item {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--faq-soft);
}

.page-faq .faq-quick-item strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 500;
  line-height: 1.05;
  color: var(--c-ink);
  margin-bottom: 4px;
}

.page-faq .faq-hero-media {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-line);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 34px;
  padding-top: 44px;
  padding-bottom: 88px;
}

/* ---------- 分类轴 ---------- */
.page-faq .faq-axis {
  border-bottom: 1px solid var(--faq-line);
  padding-bottom: 12px;
}

.page-faq .faq-axis-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faq-soft);
}

.page-faq .faq-axis-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-axis-list > li {
  flex: 0 0 auto;
}

.page-faq .faq-axis-link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  color: var(--faq-body);
  background: var(--c-paper);
  border: 1px solid var(--faq-line);
  transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .faq-axis-num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--c-slate);
  transition: color .16s var(--ease);
}

.page-faq .faq-axis-link:hover,
.page-faq .faq-axis-link:focus-visible {
  color: var(--c-neon-deep);
  border-color: var(--c-neon);
  background: #FFFFFF;
}

.page-faq .faq-axis-link:hover .faq-axis-num,
.page-faq .faq-axis-link:focus-visible .faq-axis-num {
  color: var(--c-neon-deep);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  padding-bottom: 34px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--faq-line);
  scroll-margin-top: calc(var(--hdr-h) + 22px);
}

.page-faq .faq-group-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.page-faq .faq-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-neon-deep);
}

.page-faq .faq-group-head .section-title {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  line-height: 1.3;
  font-weight: 700;
  color: var(--c-ink);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  background: var(--c-paper);
  margin-bottom: 10px;
  transition: border-color .16s var(--ease), background-color .16s var(--ease), transform .16s var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
  border-color: var(--c-neon);
}

.page-faq .faq-item[open] {
  background: #FFFFFF;
  border-color: var(--c-neon);
  transform: none;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-ink);
  transition: color .16s var(--ease);
}

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

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: -2px;
}

.page-faq .faq-q-num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--c-slate);
  transition: color .16s var(--ease);
}

.page-faq .faq-item[open] .faq-q-num {
  color: var(--c-neon-deep);
}

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

.page-faq .faq-sign {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  background: var(--c-slate);
  transition: transform .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-sign::before {
  left: 0;
  top: 6.25px;
  width: 14px;
  height: 1.5px;
}

.page-faq .faq-sign::after {
  left: 6.25px;
  top: 0;
  width: 1.5px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-sign::before {
  background: var(--c-neon);
}

.page-faq .faq-item[open] .faq-sign::after {
  transform: scaleY(0);
}

.page-faq .faq-answer {
  margin: 0 16px 16px 40px;
  padding-left: 16px;
  border-left: 2px solid var(--c-neon);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .faq-answer p {
  margin: 0;
}

.page-faq .faq-answer a {
  color: var(--c-neon-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(15, 143, 122, .35);
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--c-ink);
  border-bottom-color: var(--c-ink);
}

/* ---------- 筛选示意图 ---------- */
.page-faq .faq-filter-media {
  margin: 22px 0 0;
}

.page-faq .faq-filter-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-line);
}

.page-faq .faq-filter-media .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--faq-soft);
}

/* ---------- 收尾联系块 ---------- */
.page-faq .faq-tail {
  display: grid;
  gap: 26px;
  padding: 28px 22px;
  background: var(--grad-night);
  color: var(--c-mist);
  scroll-margin-top: calc(var(--hdr-h) + 22px);
}

.page-faq .faq-tail .eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-neon);
}

.page-faq .faq-tail .section-title {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  line-height: 1.25;
  font-weight: 700;
  color: #FFFFFF;
}

.page-faq .faq-tail-copy p {
  margin: 0 0 18px;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(237, 241, 242, .82);
}

.page-faq .faq-tail-ways {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid rgba(237, 241, 242, .18);
}

.page-faq .faq-tail-way {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(237, 241, 242, .18);
}

.page-faq .faq-tail-way dt {
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(237, 241, 242, .62);
}

.page-faq .faq-tail-way dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-neon);
  word-break: break-all;
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 599px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--hdr-h) + 18px);
    padding-bottom: 42px;
  }

  .page-faq .faq-hero h1 {
    font-size: clamp(1.7rem, 8vw, 2.3rem);
  }

  .page-faq .faq-quick {
    gap: 12px 24px;
  }

  .page-faq .faq-quick-item strong {
    font-size: 20px;
  }

  .page-faq .faq-answer {
    margin-left: 16px;
    padding-left: 13px;
  }

  .page-faq .faq-q {
    font-size: 14.5px;
    padding: 13px 13px;
    gap: 9px;
  }

  .page-faq .faq-tail {
    padding: 24px 16px;
  }

  .page-faq .faq-tail-way dd {
    font-size: 13.5px;
  }
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-bottom: 72px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 52px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-axis-w) minmax(0, 1fr);
    gap: 54px;
    padding-top: 58px;
    padding-bottom: 118px;
  }

  .page-faq .faq-axis {
    position: sticky;
    top: calc(var(--hdr-h) + 26px);
    align-self: start;
    max-height: calc(100vh - var(--hdr-h) - 56px);
    overflow-y: auto;
    border-bottom: 0;
    border-top: 1px solid var(--faq-line);
    padding-top: 20px;
    padding-bottom: 24px;
  }

  .page-faq .faq-axis-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-axis-list > li {
    flex: 0 1 auto;
    border-bottom: 1px solid var(--faq-line);
  }

  .page-faq .faq-axis-list > li:first-child {
    border-top: 1px solid var(--faq-line);
  }

  .page-faq .faq-axis-link {
    display: flex;
    justify-content: flex-start;
    width: 100%;
    padding: 12px 4px;
    font-size: 13.5px;
    background: transparent;
    border: 0;
  }

  .page-faq .faq-axis-link:hover,
  .page-faq .faq-axis-link:focus-visible {
    background: transparent;
  }

  .page-faq .faq-tail {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 46px;
    padding: 40px 38px;
  }

  .page-faq .faq-tail-ways {
    border-top: 0;
  }

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

  .page-faq .faq-tail-way:last-child {
    padding-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-axis-link,
  .page-faq .faq-sign::before,
  .page-faq .faq-sign::after,
  .page-faq .breadcrumb a {
    transition: none;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }
}