.page-faq {
  --faq-rail: 180px;
  --faq-line-soft: rgba(36, 64, 95, 0.7);
  padding-bottom: calc(var(--dock-h) + 40px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: 22px;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-faq .faq-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}

.page-faq .faq-crumb li {
  display: inline-flex;
  align-items: center;
}

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

.page-faq .faq-crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

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

.page-faq .faq-crumb li[aria-current] {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 32px;
  padding: 30px 0 44px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(40px, 10vw, 82px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-hero__sub {
  margin: 16px 0 0;
  font-size: clamp(17px, 2.6vw, 22px);
  line-height: 1.5;
  font-weight: 600;
  color: var(--cyan);
  max-width: 30ch;
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: 28px 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-hero__stats > div {
  background: var(--navy-2);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-hero__stats dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-hero__stats dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-num);
  font-size: 24px;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .faq-hero__stats .num-unit {
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-hero__side {
  position: relative;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__side .side-note {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-faq .faq-hero__side-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding: 44px 0 8px;
}

.page-faq .faq-split {
  display: grid;
  gap: 26px;
}

/* ---------- 左侧分类轨 ---------- */
.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 8px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-cat {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  color: var(--ink);
  border-color: var(--cyan);
}

.page-faq .faq-cat__num {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--line);
}

.page-faq .faq-cat.is-active {
  color: var(--ink);
  border-color: var(--orange);
  background: rgba(255, 106, 33, 0.1);
}

.page-faq .faq-cat.is-active .faq-cat__num {
  color: var(--orange);
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 26px 0 4px;
  font-size: 11px;
  letter-spacing: 0.2em;
  font-weight: 600;
  color: var(--cyan);
}

.page-faq .faq-divider:first-child {
  margin-top: 0;
}

.page-faq .faq-divider span {
  font-family: var(--font-num);
  color: var(--orange);
}

.page-faq .faq-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy-3);
  overflow: hidden;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .26s var(--ease);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 16px 15px 20px;
  list-style: none;
  cursor: pointer;
  color: var(--ink);
  font-size: 15.5px;
  line-height: 1.55;
  font-weight: 600;
  transition: color .18s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--cyan);
}

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

.page-faq .faq-item__mark {
  flex: 0 0 auto;
  position: relative;
  width: 12px;
  height: 12px;
  margin-top: 5px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  left: 5px;
  top: 0;
  width: 1.5px;
  height: 12px;
}

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

.page-faq .faq-item__body {
  padding: 0 18px 18px 20px;
  border-top: 1px solid var(--faq-line-soft);
  margin-top: 2px;
}

.page-faq .faq-item__body p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-item__body strong {
  color: var(--ink);
  font-weight: 700;
}

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 208, 0.4);
}

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

/* ---------- 图注区 ---------- */
.page-faq .faq-figure {
  margin: 4px 0 6px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy-2);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 反馈流程条 ---------- */
.page-faq .faq-flow {
  list-style: none;
  margin: 4px 0 8px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-flow > li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  background: var(--navy-2);
}

.page-faq .faq-flow__num {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-flow > li:last-child .faq-flow__num {
  color: var(--magenta);
}

.page-faq .faq-flow__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-flow__note {
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 收尾求助 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: 24px;
  padding: 40px 0 20px;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-help__panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255, 106, 33, 0.12), rgba(44, 232, 208, 0.06) 60%, transparent);
  padding: 26px 22px;
}

.page-faq .faq-help__panel .label {
  color: var(--orange);
}

.page-faq .faq-help__panel h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-help__text {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-help__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-help__links li {
  background: var(--navy-2);
}

.page-faq .faq-help__links a {
  display: block;
  padding: 14px 16px;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-help__links a:hover,
.page-faq .faq-help__links a:focus-visible {
  color: var(--cyan);
  background: rgba(44, 232, 208, 0.07);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding: 48px 0 60px;
  }

  .page-faq .faq-hero__side {
    padding: 6px 0 0 22px;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-flow {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

/* ---------- 桌面：左侧分类轨 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-split {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h-compact) + 26px);
  }

  .page-faq .faq-rail__title {
    padding-left: 12px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-cat {
    width: 100%;
    justify-content: flex-start;
    text-align: left;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    border-radius: 0;
    background: transparent;
  }

  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(44, 232, 208, 0.06);
  }

  .page-faq .faq-cat.is-active {
    border-left-color: var(--orange);
    background: linear-gradient(90deg, rgba(255, 106, 33, 0.16), transparent 78%);
  }

  .page-faq .faq-item > summary {
    padding: 17px 20px 17px 24px;
    font-size: 16px;
  }

  .page-faq .faq-item__body {
    padding: 0 24px 20px 24px;
  }

  .page-faq .faq-figure {
    padding: 14px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item::before,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-cat,
  .page-faq .faq-help__links a {
    transition: none;
  }
}
<<<END>>>