.page-faq {
  --faq-rail-w: 168px;
  --faq-sticky-top: 84px;
  display: block;
}

@media (min-width: 1024px) {
  .page-faq {
    --faq-rail-w: 208px;
    --faq-sticky-top: 24px;
  }
}

.page-faq .breadcrumbs {
  margin: 18px 0 2px;
}

.page-faq .faq-hero {
  padding-top: 18px;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-frame {
  position: relative;
  background: var(--c-paper);
  border: var(--line);
  box-shadow: var(--shadow);
  padding: 30px 18px 58px;
  overflow: hidden;
}

.page-faq .faq-frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--c-ink) 0 1px, transparent 1px 13px);
  opacity: 0.28;
  pointer-events: none;
}

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

.page-faq .faq-hero__lead {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-slate);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

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

.page-faq .faq-stats {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(74, 84, 80, 0.35);
}

.page-faq .faq-stat:first-child {
  border-top: 1px dashed rgba(74, 84, 80, 0.35);
}

.page-faq .faq-stat__num {
  flex: none;
  min-width: 2.4em;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-jersey);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-slate);
}

.page-faq .faq-frame__bar {
  position: absolute;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 7px 14px;
  background: var(--c-ink);
  color: var(--c-paper);
  font-size: 11px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .page-faq .faq-frame {
    padding: 38px 34px 62px;
  }

  .page-faq .faq-hero h1 {
    font-size: 44px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-frame__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 40px;
  }

  .page-faq .faq-frame__aside {
    border-left: var(--line);
    padding-left: 28px;
  }

  .page-faq .faq-hero h1 {
    font-size: 52px;
    max-width: 15em;
  }
}

/* ---------- 高频任务 ---------- */
.page-faq .faq-quick {
  display: grid;
  gap: 14px;
}

.page-faq .faq-task {
  position: relative;
  padding: 18px 16px 20px;
  background: var(--c-paper);
  border: var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-task:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--c-ink);
}

.page-faq .faq-task__title {
  margin: 12px 0 8px;
  font-family: var(--font-sans);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--c-ink);
}

.page-faq .faq-task__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-slate);
}

@media (min-width: 720px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-task:nth-child(2) {
    margin-top: 16px;
  }

  .page-faq .faq-task:nth-child(3) {
    margin-top: -10px;
  }
}

/* ---------- 步骤区 ---------- */
.page-faq .faq-lede {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-slate);
}

.page-faq .faq-steps {
  display: grid;
  gap: 26px;
  margin-top: 30px;
}

.page-faq .faq-steps__rail-label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-clay);
}

.page-faq .faq-steps__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-steps__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  background: var(--c-paper);
  border: 2px solid var(--c-ink);
  color: var(--c-ink);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: background 160ms var(--ease), color 160ms var(--ease);
}

.page-faq .faq-steps__link .mono {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-jersey);
}

.page-faq .faq-steps__link:hover,
.page-faq .faq-steps__link:focus-visible {
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-faq .faq-steps__link:hover .mono,
.page-faq .faq-steps__link:focus-visible .mono {
  color: var(--c-batch);
}

.page-faq .faq-steps__body {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.page-faq .faq-step {
  padding: 22px 18px 20px;
  background: var(--c-paper);
  border: var(--line);
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 92px;
}

.page-faq .faq-step__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-mist);
}

.page-faq .faq-step__num {
  flex: none;
  padding: 3px 9px;
  background: var(--c-jersey);
  color: var(--c-paper);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-faq .faq-step h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--c-ink);
}

.page-faq .faq-step p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-slate);
}

.page-faq .faq-step__checks {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step__checks li {
  position: relative;
  padding: 5px 0 5px 24px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-ink);
}

.page-faq .faq-step__checks li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 13px;
  width: 8px;
  height: 8px;
  background: var(--c-moss);
  border: 1px solid var(--c-ink);
}

.page-faq .faq-step__figure {
  margin: 18px 0 0;
  border: var(--line);
  background: var(--c-mist);
}

.page-faq .faq-step__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-step__figure .media__caption {
  padding: 8px 12px;
  background: var(--c-paper);
  border-top: 1px solid var(--c-ink);
  font-size: 12.5px;
  color: var(--c-slate);
}

@media (min-width: 900px) {
  .page-faq .faq-steps {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 38px;
    align-items: start;
  }

  .page-faq .faq-steps__rail {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
    padding-left: 16px;
    border-left: 3px solid var(--c-ridge);
  }

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

  .page-faq .faq-steps__link {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .faq-step {
    padding: 28px 26px 26px;
  }
}

/* ---------- 版本对照表 ---------- */
.page-faq .faq-scroll-wrap {
  position: relative;
  margin-top: 26px;
  background: var(--c-paper);
  border: var(--line);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-scroll {
  overflow-x: auto;
  max-width: 100%;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table__caption {
  padding: 10px 14px 0;
  text-align: left;
  font-size: 12.5px;
  color: var(--c-slate);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: 1px solid var(--c-mist);
}

.page-faq .faq-table thead th {
  background: var(--c-ridge);
  color: var(--c-paper);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
  white-space: nowrap;
  border-bottom: none;
}

.page-faq .faq-table tbody th {
  width: 96px;
  background: var(--c-mist);
  color: var(--c-ink);
  font-family: var(--font-sans);
  font-weight: 800;
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:nth-child(even) td {
  background: rgba(220, 230, 225, 0.4);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: none;
}

.page-faq .faq-scroll__hint {
  margin: 0;
  padding: 8px 14px;
  border-top: 1px solid var(--c-mist);
  background: var(--c-paper);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-slate);
}

.page-faq .faq-version__more {
  margin: 14px 0 0;
}

.page-faq .faq-version__more a {
  color: var(--c-electric);
  font-weight: 700;
}

/* ---------- 导出与归档 ---------- */
.page-faq .faq-export {
  display: grid;
  gap: 24px;
}

.page-faq .faq-export__copy h2 {
  margin: 10px 0 14px;
  font-family: var(--font-serif);
  font-size: 27px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

.page-faq .faq-export__copy p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-slate);
}

.page-faq .faq-export__panel {
  padding: 20px 18px;
  background: var(--c-mist);
  border: var(--line);
  border-left: 6px solid var(--c-electric);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-export__panel-title {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 800;
  color: var(--c-ink);
}

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

.page-faq .faq-export__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(15, 92, 78, 0.18);
}

.page-faq .faq-export__row:last-child {
  border-bottom: none;
}

.page-faq .faq-export__row dt {
  font-size: 13.5px;
  color: var(--c-slate);
}

.page-faq .faq-export__row dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-ink);
  text-align: right;
}

.page-faq .faq-export__panel .annotation {
  margin: 14px 0 0;
}

@media (min-width: 900px) {
  .page-faq .faq-export {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
}

/* ---------- 常见疑问折叠区 ---------- */
.page-faq .faq-list__figure {
  margin: 26px 0 22px;
  border: var(--line);
  background: var(--c-mist);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-list__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-list__figure .media__caption {
  padding: 8px 12px;
  background: var(--c-paper);
  border-top: 1px solid var(--c-ink);
  font-size: 12.5px;
  color: var(--c-slate);
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--c-paper);
  border: var(--line);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-item[open] {
  border-left: 6px solid var(--c-jersey);
}

.page-faq .faq-item > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q {
  flex: 1 1 12em;
  min-width: 0;
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-ink);
}

.page-faq .faq-item > summary::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--c-jersey);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
}

.page-faq .faq-item__body {
  padding: 0 16px 18px;
  border-top: 1px dashed var(--c-mist);
}

.page-faq .faq-item__body p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-slate);
}

.page-faq .faq-item__body a {
  color: var(--c-electric);
  font-weight: 700;
}

.page-faq .faq-item__scope {
  display: inline-block;
  margin: 14px 0 0;
  font-size: 12px;
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  background: var(--c-ridge);
  border: var(--line);
  box-shadow: var(--shadow);
  padding: 28px 20px;
}

.page-faq .faq-help__copy h2 {
  margin: 10px 0 12px;
  font-family: var(--font-serif);
  font-size: 27px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-faq .faq-help__copy p {
  margin: 0 0 12px;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-faq .faq-help__note {
  font-size: 13.5px;
  color: var(--c-batch);
}

.page-faq .eyebrow--light {
  color: var(--c-batch);
}

.page-faq .faq-help__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(246, 243, 236, 0.28);
}

.page-faq .faq-help__item {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(246, 243, 236, 0.22);
}

.page-faq .faq-help__key {
  flex: none;
  min-width: 5.5em;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--c-batch);
}

.page-faq .faq-help__val {
  flex: 1 1 12em;
  min-width: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-paper);
  word-break: break-word;
}

@media (min-width: 900px) {
  .page-faq .faq-help {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
    padding: 40px 38px;
  }

  .page-faq .faq-help__list {
    margin-top: 0;
  }
}

/* ---------- 收尾窄条 ---------- */
.page-faq .faq-next {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  background: var(--c-mist);
  border: var(--line);
  border-left: 6px solid var(--c-jersey);
}

.page-faq .faq-next__text {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

/* ---------- 通用兜底 ---------- */
.page-faq img {
  max-width: 100%;
  height: auto;
}

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

.page-faq address,
.page-faq dl,
.page-faq dd {
  font-style: normal;
}
<<<END>>>