.page-faq {
  --faq-shift: clamp(1.25rem, 3.5vw, 2.5rem);
  --faq-line: var(--line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background: linear-gradient(180deg, var(--deep) 0%, #0b2027 100%);
  color: var(--paper);
  padding: clamp(2rem, 6vw, 3.75rem) 0 clamp(2rem, 5vw, 3.25rem);
  border-bottom: var(--frame) solid var(--ink);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 6px;
  background:
    repeating-linear-gradient(
      90deg,
      var(--cyan) 0 24px,
      transparent 24px 40px,
      var(--ochre) 40px 60px,
      transparent 60px 84px
    );
  opacity: 0.7;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 1.15rem;
}

.page-faq .faq-hero__plate {
  justify-self: start;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  padding: 0.36rem 0.7rem;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 6vw, 3rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  font-size: clamp(0.98rem, 1.8vw, 1.1rem);
  line-height: 1.8;
  color: rgba(247, 248, 248, 0.82);
  max-width: 62ch;
  margin: 0;
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
}

.page-faq .faq-hero__meta-item {
  display: grid;
  gap: 0.25rem;
  padding: 0.7rem 0.8rem;
  border: 2px solid rgba(247, 248, 248, 0.22);
  background: rgba(15, 110, 140, 0.14);
}

.page-faq .faq-hero__meta-item .mono {
  font-size: 1rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__meta-item em {
  font-style: normal;
  font-size: 0.78rem;
  color: rgba(247, 248, 248, 0.72);
}

/* ---------- 分类信息图 ---------- */
.page-faq .faq-map {
  padding-top: var(--faq-shift);
}

.page-faq .faq-map .figure {
  margin: 0;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body__head {
  display: grid;
  gap: 0.55rem;
  max-width: 62ch;
}

.page-faq .faq-body__no {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--ochre);
}

.page-faq .faq-body__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-body__note {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 版本刻度 ---------- */
.page-faq .ticks {
  list-style: none;
  margin: 1.5rem 0 0.25rem;
  padding: 0.75rem 0 0;
  display: flex;
  gap: 0;
  border-top: 2px solid var(--line);
  position: relative;
}

.page-faq .ticks::after {
  content: "";
  position: absolute;
  top: calc(0.75rem - 2px);
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--peacock));
  opacity: 0.35;
}

.page-faq .ticks__item {
  flex: 1 1 0;
  min-width: 0;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-align: center;
  padding: 0.45rem 0 0;
  position: relative;
}

.page-faq .ticks__item::before {
  content: "";
  position: absolute;
  top: calc(-0.75rem - 2px);
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 0.75rem;
  background: var(--line);
}

.page-faq .ticks__item.is-on {
  color: var(--peacock);
  font-weight: 700;
}

.page-faq .ticks__item.is-on::before {
  background: var(--peacock);
}

/* ---------- 筛选栏微调 ---------- */
.page-faq .filter-bar {
  margin-top: 1.4rem;
  flex-wrap: wrap;
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 2rem;
  margin-top: 1.9rem;
}

.page-faq .faq-group {
  border-top: 3px solid var(--ink);
  padding-top: 1.1rem;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin-bottom: 1rem;
  padding-left: 0.6rem;
  border-left: 4px solid var(--cyan);
}

.page-faq .faq-group__no {
  font-size: 0.82rem;
  color: var(--peacock);
  letter-spacing: 0.12em;
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.15rem, 3.2vw, 1.4rem);
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-group__body {
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-group__figure {
  margin: 0 0 1rem;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  border: 2px solid var(--ink);
  border-left: 5px solid var(--line);
  background: var(--paper);
  transition: border-left-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-q + .faq-q {
  margin-top: 0;
}

.page-faq .faq-q[open] {
  border-left-color: var(--peacock);
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .faq-q__head {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.75rem;
  padding: 0.85rem 0.95rem;
  transition: background-color 0.18s var(--ease);
}

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

.page-faq .faq-q__head:hover,
.page-faq .faq-q__head:focus-visible {
  background: var(--paper-dim);
  outline: none;
}

.page-faq .faq-q__head:focus-visible {
  outline: 2px solid var(--peacock);
  outline-offset: -2px;
}

.page-faq .faq-q__tag {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  padding: 0.16rem 0.42rem;
  border: 1.5px solid var(--peacock);
  color: var(--peacock);
  text-transform: uppercase;
  flex: 0 0 auto;
}

.page-faq .faq-q__q {
  flex: 1 1 14ch;
  min-width: 0;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-q__ver {
  flex: 0 0 auto;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  padding: 0.14rem 0.4rem;
  border: 1px dashed var(--line);
}

.page-faq .faq-q__mark {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--peacock);
  transform: translate(-50%, -50%);
  transition: transform 0.18s var(--ease);
}

.page-faq .faq-q__mark::before {
  width: 12px;
  height: 2px;
}

.page-faq .faq-q__mark::after {
  width: 2px;
  height: 12px;
}

.page-faq .faq-q[open] .faq-q__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-q__body {
  padding: 0 0.95rem 0.95rem 0.95rem;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-q__body p {
  margin: 0.7rem 0 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 底部联系 ---------- */
.page-faq .faq-cta {
  margin-top: var(--faq-shift);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 1.25rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border: 3px solid var(--ink);
  background: linear-gradient(135deg, var(--paper) 0%, var(--paper-dim) 100%);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-cta__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 3.4vw, 1.7rem);
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  color: var(--ink);
}

.page-faq .faq-cta__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-faq .faq-cta__contact {
  list-style: none;
  margin: 0;
  padding: 0.9rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.5rem;
}

.page-faq .faq-cta__contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  align-items: baseline;
  font-size: 0.92rem;
  color: var(--ink);
}

.page-faq .faq-cta__contact-key {
  flex: 0 0 auto;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--peacock);
}

.page-faq .faq-cta__contact-val {
  word-break: break-word;
}

/* ---------- 展开动画的 reduced-motion 兜底 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q__mark::before,
  .page-faq .faq-q__mark::after,
  .page-faq .faq-q__head {
    transition: none;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    gap: 1.35rem;
  }

  .page-faq .faq-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 14rem));
  }

  .page-faq .faq-group__title {
    font-size: 1.35rem;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-cta__text {
    grid-column: 1;
  }

  .page-faq .faq-cta__actions {
    grid-column: 2;
    justify-content: flex-end;
  }

  .page-faq .faq-cta__contact {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面上双区错位 ---------- */
@media (min-width: 1080px) {
  .page-faq .faq-body__head {
    grid-template-columns: 10rem minmax(0, 1fr);
    grid-template-areas:
      "no title"
      "no note";
    column-gap: 1.25rem;
    max-width: none;
  }

  .page-faq .faq-body__no {
    grid-area: no;
    padding-top: 0.35rem;
  }

  .page-faq .faq-body__title {
    grid-area: title;
  }

  .page-faq .faq-body__note {
    grid-area: note;
  }

  .page-faq .faq-groups {
    gap: 2.5rem;
  }

  .page-faq .faq-q__body {
    padding: 0 1.35rem 1.1rem;
  }

  .page-faq .faq-q__body p {
    max-width: 76ch;
  }

  .page-faq .faq-group__figure {
    max-width: 52rem;
  }
}
<<<END>>>