.page-faq {
  --faq-tab-top: 54px;
  display: block;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  padding-block: clamp(24px, 5vw, 56px) clamp(24px, 5vw, 52px);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(16px, 3vw, 28px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
}

.page-faq .faq-hero .lede {
  max-width: 38em;
}

.page-faq .faq-hero-actions {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--radius-slab);
  overflow: hidden;
}

.page-faq .faq-fact {
  background: var(--panel);
  padding: 14px 16px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-faq .faq-fact-num {
  font-family: var(--font-num);
  font-size: var(--s34);
  line-height: 1;
  font-weight: 600;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  flex: 0 0 auto;
  min-width: 1.6em;
}

.page-faq .faq-fact-label {
  font-size: var(--s14);
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 章节头 ---------- */
.page-faq .faq-sec-head {
  max-width: 44em;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-sec-head .display-2 {
  margin: 10px 0 12px;
}

.page-faq .faq-sec-head .body-copy {
  margin: 0;
}

/* ---------- 快速入口卡片 ---------- */
.page-faq .faq-quick-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .faq-card {
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: var(--radius-slab);
  padding: 0 16px;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-card:hover {
  border-color: #33413e;
}

.page-faq .faq-card[open] {
  border-color: rgba(180, 255, 58, 0.5);
  background: var(--raised);
}

.page-faq .faq-card > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 0;
}

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

.page-faq .faq-card > summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 6px;
}

.page-faq .faq-card-num {
  font-family: var(--font-num);
  font-size: var(--s20);
  line-height: 1;
  font-weight: 500;
  color: var(--muted-deep);
  font-variant-numeric: tabular-nums;
  flex: 0 0 auto;
}

.page-faq .faq-card[open] .faq-card-num {
  color: var(--lime);
}

.page-faq .faq-card-q {
  color: var(--ink);
  font-size: var(--s16);
  font-weight: 500;
  line-height: 1.5;
}

.page-faq .faq-card-body {
  padding: 0 0 18px;
  border-top: 1px solid var(--hair);
  margin-top: -1px;
  padding-top: 14px;
}

.page-faq .faq-card-body p {
  margin: 0;
  font-size: var(--s14);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 分类胶囊 ---------- */
.page-faq .faq-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0 16px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  position: sticky;
  top: var(--faq-tab-top);
  z-index: 4;
  background: linear-gradient(180deg, var(--night) 74%, rgba(10, 14, 13, 0));
}

.page-faq .faq-tabs::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid var(--hair);
  background: var(--raised);
  color: var(--muted);
  border-radius: var(--radius-capsule);
  padding: 9px 16px;
  font-family: var(--font-body);
  font-size: var(--s14);
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-tab:hover {
  color: var(--ink);
  border-color: #3a4a46;
}

.page-faq .faq-tab[aria-selected="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: #0A0E0D;
  font-weight: 500;
}

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

/* ---------- 问答面板 ---------- */
.page-faq .faq-panel[hidden] {
  display: none;
}

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

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

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--hair);
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 40px 1fr 20px;
  align-items: baseline;
  gap: 12px;
  padding: 18px 2px;
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .faq-item-no {
  font-family: var(--font-num);
  font-size: var(--s16);
  font-weight: 500;
  color: var(--muted-deep);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item-q {
  font-size: var(--s16);
  line-height: 1.6;
  color: var(--ink);
  font-weight: 500;
}

.page-faq .faq-item-mark {
  position: relative;
  width: 12px;
  height: 12px;
  align-self: center;
  justify-self: end;
}

.page-faq .faq-item-mark::before,
.page-faq .faq-item-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--muted);
  transition: transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-item-mark::before {
  width: 12px;
  height: 1px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item-mark::after {
  width: 1px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-item-no {
  color: var(--lime);
}

.page-faq .faq-item[open] .faq-item-mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.page-faq .faq-item[open] .faq-item-mark::before {
  background: var(--lime);
}

.page-faq .faq-item-body {
  padding: 2px 12px 22px 24px;
  margin-left: 2px;
  border-left: 2px solid var(--lime);
}

.page-faq .faq-item-body p {
  margin: 0;
  font-size: var(--s14);
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

/* ---------- 收藏路径 ---------- */
.page-faq .faq-path-grid {
  row-gap: 16px;
}

.page-faq .faq-path-card {
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: var(--radius-card);
  padding: 20px 20px 22px;
  height: 100%;
}

.page-faq .faq-path-ios {
  border-color: rgba(180, 255, 58, 0.28);
}

.page-faq .faq-path-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.page-faq .faq-path-title {
  margin: 0;
  font-family: var(--font-num);
  font-size: var(--s34);
  font-weight: 600;
  line-height: 1;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 20px 30px;
}

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

.page-faq .faq-step::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 15px;
  bottom: -2px;
  width: 1px;
  background: var(--hair);
}

.page-faq .faq-step:last-child::after {
  display: none;
}

.page-faq .faq-step-dot {
  position: absolute;
  left: 0;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--night);
  border: 1px solid var(--lime);
  box-sizing: border-box;
}

.page-faq .faq-step:first-child .faq-step-dot {
  background: var(--lime);
}

.page-faq .faq-step-text {
  margin: 0;
  font-size: var(--s14);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-step-text strong {
  display: block;
  color: var(--ink);
  font-weight: 500;
  font-size: var(--s16);
  margin-bottom: 4px;
}

.page-faq .faq-steps-lg .faq-step {
  padding-bottom: 24px;
}

.page-faq .faq-figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
}

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

.page-faq .faq-figure figcaption {
  font-size: var(--s12);
  color: var(--muted-deep);
  letter-spacing: 0.02em;
}

/* ---------- 差异对照 ---------- */
.page-faq .faq-compare-sec {
  border-top: 1px solid var(--hair);
}

.page-faq .faq-table-scroll {
  overflow-x: auto;
  margin-top: clamp(20px, 3vw, 30px);
  border: 1px solid var(--hair);
  border-radius: var(--radius-slab);
  background: var(--panel);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-compare {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: var(--s14);
  text-align: left;
}

.page-faq .faq-compare-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 0;
  font-size: var(--s12);
  letter-spacing: 0.06em;
  color: var(--muted-deep);
}

.page-faq .faq-compare th,
.page-faq .faq-compare td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--hair);
  vertical-align: top;
  line-height: 1.65;
}

.page-faq .faq-compare thead th {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--s12);
  letter-spacing: 0.06em;
  color: var(--lime);
  background: var(--raised);
}

.page-faq .faq-compare tbody th {
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}

.page-faq .faq-compare tbody td {
  color: var(--muted);
}

.page-faq .faq-compare tbody tr:nth-child(odd) th,
.page-faq .faq-compare tbody tr:nth-child(odd) td {
  background: rgba(255, 255, 255, 0.018);
}

.page-faq .faq-compare tbody tr:last-child th,
.page-faq .faq-compare tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 重登提示板 ---------- */
.page-faq .faq-note {
  margin-top: 8px;
}

.page-faq .faq-note .slab-title {
  margin: 10px 0 0;
  font-size: var(--s20);
}

.page-faq .faq-note p {
  margin: 0;
  font-size: var(--s14);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 订阅三档 ---------- */
.page-faq .faq-sub-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-faq .faq-sub {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: var(--radius-card);
  padding: 22px 20px 24px;
  border-left-width: 3px;
}

.page-faq .faq-sub-lime {
  border-left-color: var(--lime);
}

.page-faq .faq-sub-ember {
  border-left-color: var(--ember);
}

.page-faq .faq-sub-amber {
  border-left-color: var(--amber);
}

.page-faq .faq-sub-tag {
  display: inline-block;
  font-size: var(--s12);
  letter-spacing: 0.08em;
  color: var(--muted-deep);
  margin-bottom: 12px;
}

.page-faq .faq-sub-title {
  margin: 0 0 10px;
  font-size: var(--s20);
  line-height: 1.4;
  color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-sub p {
  margin: 0;
  font-size: var(--s14);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 纠错 ---------- */
.page-faq .faq-correction-actions {
  margin-top: 24px;
}

.page-faq .faq-fix-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-fix-item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-fix-num {
  font-family: var(--font-num);
  font-size: var(--s26);
  line-height: 1;
  font-weight: 600;
  color: var(--ember);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-fix-title {
  margin: 0 0 6px;
  font-size: var(--s16);
  color: var(--ink);
  font-weight: 500;
}

.page-faq .faq-fix-item p {
  margin: 0;
  font-size: var(--s14);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 延伸阅读 ---------- */
.page-faq .faq-more-rail {
  display: grid;
  gap: 20px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-more-rail .display-3 {
  margin: 0 0 8px;
}

.page-faq .faq-more-rail .meta {
  margin: 0;
}

.page-faq .faq-more-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-sub-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-more-rail {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-faq .faq-more-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-faq {
    --faq-tab-top: 68px;
  }

  .page-faq .faq-quick-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .page-faq .faq-fact-num {
    font-size: var(--s26);
  }

  .page-faq .faq-item > summary {
    grid-template-columns: 34px 1fr 18px;
    gap: 10px;
    padding: 16px 0;
  }

  .page-faq .faq-item-body {
    padding: 2px 4px 20px 16px;
  }

  .page-faq .faq-item-body p {
    font-size: 15px;
    line-height: 1.85;
  }

  .page-faq .faq-fix-item {
    grid-template-columns: 36px 1fr;
    gap: 10px;
  }

  .page-faq .faq-fix-num {
    font-size: var(--s20);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-tab,
  .page-faq .faq-item-no,
  .page-faq .faq-item-mark::before,
  .page-faq .faq-item-mark::after {
    transition: none;
  }
}