.page-faq {
  color: var(--ice);
}

.page-faq .crumbs {
  padding-top: 1.4rem;
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-faq .crumbs a {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq__body {
  padding-bottom: 3.5rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: 1.8rem;
  padding: 1.8rem 0 2.2rem;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(340px, 70%);
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), rgba(255, 122, 47, 0.5), transparent);
}

.page-faq h1 {
  margin: 0.8rem 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.95rem, 6.2vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: 0.035em;
  color: var(--ice);
  max-width: 22ch;
}

.page-faq .faq-hero .lede {
  margin-top: 1.1rem;
  max-width: 34rem;
  color: var(--mist);
  font-size: var(--fs-16);
  line-height: 1.85;
}

.page-faq .faq-hero__aside {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border-top: 1px solid var(--edge);
  padding-top: 1.2rem;
}

.page-faq .faq-hero__vert {
  display: none;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  width: 100%;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.15rem, 4vw, 1.6rem);
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-faq .faq-stat__label {
  font-size: var(--fs-12);
  color: var(--mist);
  letter-spacing: 0.04em;
  line-height: 1.5;
}

/* ---------- 分类索引条 ---------- */
.page-faq .faq-finder {
  padding-top: 2rem;
}

.page-faq .faq-finder__title {
  margin: 0 0 0.9rem;
  font-size: var(--fs-14);
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-index {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-faq .faq-index .faq-index__cell {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  min-height: 92px;
  padding: 0.9rem 1rem 1rem;
  font-family: var(--font-sans);
  text-align: left;
  cursor: pointer;
  color: var(--ice);
  background: linear-gradient(150deg, var(--night), rgba(10, 22, 38, 0.9));
  border: 1px solid var(--edge);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-index__cell--all {
  grid-column: 1 / -1;
  min-height: 74px;
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 1.45rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-index__name {
  font-size: var(--fs-14);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-faq .faq-index__hint {
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-faq .faq-index .faq-index__cell:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-index .faq-index__cell[aria-pressed="true"] {
  background: var(--sand);
  border-color: var(--cyan);
  color: var(--deep);
}

.page-faq .faq-index .faq-index__cell[aria-pressed="true"] .faq-index__count,
.page-faq .faq-index .faq-index__cell[aria-pressed="true"] .faq-index__hint {
  color: var(--deep);
}

/* ---------- iOS 章节 ---------- */
.page-faq .faq-ios {
  margin-top: 2.8rem;
  padding-top: 2.4rem;
  border-top: 1px solid var(--edge);
}

.page-faq h2 {
  margin: 0.7rem 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.4vw, 2.35rem);
  line-height: 1.18;
  letter-spacing: 0.03em;
  color: var(--ice);
}

.page-faq .faq-ios__lede {
  margin-top: 0.9rem;
  max-width: 33rem;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-fig {
  margin: 1.5rem 0 0;
}

.page-faq .faq-fig img,
.page-faq .faq-export__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-steps li {
  position: relative;
}

.page-faq .faq-step {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1rem 1.1rem 1.15rem;
  text-decoration: none;
  color: var(--ice);
  background: linear-gradient(140deg, rgba(53, 230, 208, 0.14), rgba(255, 122, 47, 0.08));
  border: 1px solid var(--edge);
  border-top-color: rgba(53, 230, 208, 0.6);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-step:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-faq .faq-step__title {
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.page-faq .faq-step__hint {
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-compare {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.7rem;
  padding: 1rem 1.1rem 1.1rem;
  border: 1px solid var(--edge);
  border-left: 2px solid var(--orange);
  background: rgba(18, 38, 61, 0.7);
}

.page-faq .faq-compare__row {
  display: grid;
  gap: 0.25rem;
  font-size: var(--fs-14);
}

.page-faq .faq-compare__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-compare__text {
  color: var(--ice);
  line-height: 1.7;
}

.page-faq .faq-compare__note {
  margin: 0.2rem 0 0;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-detail {
  margin-top: 1.5rem;
  display: grid;
  gap: 1.2rem;
}

.page-faq .faq-detail__item {
  padding-left: 1rem;
  border-left: 2px solid var(--cyan);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-detail__item h3 {
  margin: 0 0 0.5rem;
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ice);
}

.page-faq .faq-detail__item p {
  margin: 0 0 0.5rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
  max-width: 34rem;
}

.page-faq .faq-detail__check {
  font-family: var(--font-mono);
  font-size: var(--fs-12) !important;
  color: var(--teal) !important;
  letter-spacing: 0.03em;
}

.page-faq .faq-ios__more {
  margin-top: 1.6rem;
}

/* ---------- 问答折叠条目 ---------- */
.page-faq .faq-questions {
  margin-top: 2.8rem;
  padding-top: 2.2rem;
  border-top: 1px solid var(--edge);
}

.page-faq .faq-group {
  margin-top: 2rem;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-group__head h3 {
  margin: 0;
  font-size: var(--fs-18);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ice);
}

.page-faq .faq-group__count {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--cyan);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.page-faq .qa {
  border-bottom: 1px solid var(--edge);
}

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ice);
  transition: color 160ms var(--ease);
}

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

.page-faq .qa > summary:hover {
  color: var(--cyan);
}

.page-faq .qa__mark {
  flex: 0 0 auto;
  width: 1.1rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  color: var(--cyan);
  transition: transform 200ms var(--ease);
}

.page-faq .qa__mark::before {
  content: "+";
}

.page-faq .qa[open] .qa__mark::before {
  content: "−";
}

.page-faq .qa[open] .qa__mark {
  transform: rotate(180deg);
}

.page-faq .qa__body {
  margin: 0 0 0.2rem;
  padding: 0 0 0 0;
  border-left: 2px solid transparent;
  transition: border-color 160ms var(--ease), padding 160ms var(--ease);
}

.page-faq .qa[open] .qa__body {
  border-left-color: var(--cyan);
  padding-left: 0.9rem;
}

.page-faq .qa__body p {
  margin: 0 0 1rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
  max-width: 34rem;
}

/* ---------- 数据导出区混排 ---------- */
.page-faq .faq-export {
  display: grid;
  gap: 1.6rem;
}

.page-faq .faq-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: 0.8rem;
}

.page-faq .data-table {
  width: 100%;
  min-width: 320px;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-faq .data-table thead th {
  padding: 0.55rem 0.45rem;
  text-align: left;
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--mist);
  border-bottom: 1px solid var(--cyan);
  white-space: nowrap;
}

.page-faq .data-table tbody td {
  padding: 0.7rem 0.45rem;
  color: var(--ice);
  border-bottom: 1px solid var(--edge);
  line-height: 1.7;
}

.page-faq .data-table tbody td:first-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.page-faq .data-table tbody tr:hover td {
  color: var(--ice);
  background: rgba(53, 230, 208, 0.06);
}

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

/* ---------- 人工支持 ---------- */
.page-faq .faq-support {
  margin-top: 3rem;
  padding: 1.4rem 1.2rem 1.6rem;
  border: 1px solid var(--edge);
  background: linear-gradient(125deg, rgba(53, 230, 208, 0.12), rgba(255, 122, 47, 0.08));
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 1.3rem;
}

.page-faq .faq-support p {
  margin: 0.8rem 0 0;
  max-width: 34rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-support__meta {
  font-family: var(--font-mono);
  font-size: var(--fs-12) !important;
  letter-spacing: 0.02em;
  color: var(--ice) !important;
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
}

.page-faq .faq-note {
  flex: 1 1 100%;
  font-size: var(--fs-12) !important;
  line-height: 1.75;
  color: var(--mist) !important;
}

.page-faq .faq-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 208, 0.5);
}

/* ---------- 响应式 ---------- */
@media (min-width: 780px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.65rem;
  }

  .page-faq .faq-index__cell--all {
    grid-column: span 1;
    min-height: 92px;
  }

  .page-faq .faq-index__cell--ios {
    grid-column: span 2;
  }

  .page-faq .faq-index .faq-index__cell {
    min-height: 100px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-faq .faq-steps li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -0.75rem;
    width: 0.5rem;
    height: 1px;
    background: var(--cyan);
    opacity: 0.5;
    transform: rotate(-18deg);
  }

  .page-faq .faq-detail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem 2rem;
  }

  .page-faq .faq-compare__row {
    grid-template-columns: 7rem 1fr;
    gap: 1rem;
    align-items: baseline;
  }

  .page-faq .faq-export {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.7fr);
    align-items: start;
    gap: 2rem;
  }

  .page-faq .faq-support {
    padding: 1.8rem 1.8rem 2rem;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.8fr);
    align-items: center;
    gap: 2rem;
  }

  .page-faq .faq-support__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.75fr);
    align-items: end;
    gap: 2.4rem;
    padding: 3rem 0 2.8rem;
  }

  .page-faq .faq-hero__aside {
    border-top: 0;
    border-left: 1px solid var(--edge);
    padding-top: 0;
    padding-left: 1.4rem;
    align-items: stretch;
  }

  .page-faq .faq-hero__vert {
    display: block;
    writing-mode: vertical-rl;
    letter-spacing: 0.3em;
    font-size: var(--fs-12);
    color: var(--mist);
    margin: 0;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: 1fr;
    gap: 1rem;
    align-content: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-index .faq-index__cell,
  .page-faq .qa__mark,
  .page-faq .qa__body {
    transition: none;
  }
}
<<<END>>>