.page-faq {
  --faq-panel: var(--panel-2);
  --faq-hair: var(--line);
  padding-bottom: 64px;
  color: var(--paper);
}

.page-faq .breadcrumb {
  margin: 24px 0 8px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 28px;
  padding: 12px 0 36px;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 7.6vw, 56px);
  line-height: 1.14;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding-right: 18px;
  border-right: 1px solid var(--faq-hair);
}

.page-faq .faq-hero__meta li:last-child {
  border-right: 0;
  padding-right: 0;
}

.page-faq .faq-hero__meta .mono {
  color: var(--gold);
  font-size: 17px;
}

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

/* ---------- 主体外壳：索引 + 内容 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: 28px;
  margin-top: 34px;
}

.page-faq .faq-side__inner {
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  border-left: 2px solid var(--gold);
  padding: 18px 18px 20px;
}

.page-faq .faq-side__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 8px;
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-side__idx {
  font-size: 11px;
  color: var(--mist);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link.is-active {
  border-left-color: var(--gold);
  background: rgba(242, 181, 68, 0.08);
  color: var(--gold);
}

.page-faq .faq-side__link.is-active .faq-side__idx {
  color: var(--gold);
}

.page-faq .faq-side__hot {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-side__hot-title {
  flex: 0 0 100%;
  margin: 0 0 2px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .faq-side__hot .chip {
  font-size: 12px;
  text-decoration: none;
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: 34px 0 10px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-sec__head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.page-faq .faq-sec__num {
  flex: 0 0 auto;
  font-size: 15px;
  line-height: 1.4;
  color: var(--gold);
  padding-top: 5px;
  letter-spacing: 0.06em;
}

.page-faq .faq-sec .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.3;
  font-weight: 600;
}

.page-faq .faq-sec .section-lede {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 60ch;
}

/* ---------- 五类主题卡 ---------- */
.page-faq .topic-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .topic-card {
  position: relative;
  display: block;
  padding: 18px 18px 20px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  color: var(--paper);
  text-decoration: none;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .topic-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.28s var(--ease);
}

.page-faq .topic-card:hover,
.page-faq .topic-card:focus-visible {
  background: var(--panel);
  border-color: rgba(242, 181, 68, 0.4);
}

.page-faq .topic-card:hover::before,
.page-faq .topic-card:focus-visible::before {
  width: 42px;
}

.page-faq .topic-card__idx {
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--teal);
}

.page-faq .topic-card__title {
  margin: 8px 0 6px;
  font-size: 19px;
  font-weight: 700;
}

.page-faq .topic-card__body {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .topic-card__go {
  font-size: 13px;
  color: var(--gold);
}

/* ---------- 阵容步骤 ---------- */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .step {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--faq-hair);
}

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

.page-faq .step__num {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--teal);
  color: var(--teal);
  font-size: 13px;
}

.page-faq .step__title {
  margin: 2px 0 6px;
  font-size: 16px;
  font-weight: 700;
}

.page-faq .step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .callout {
  margin-top: 22px;
  padding: 18px 18px 20px;
  background: var(--panel);
  border-left: 2px solid var(--orange);
  display: grid;
  gap: 14px;
  justify-items: start;
}

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

/* ---------- 旧版本资料 ---------- */
.page-faq .archive-grid {
  display: grid;
  gap: 22px;
}

.page-faq .archive-grid__figure {
  margin: 0;
}

.page-faq .fact-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .fact-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .fact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--teal);
}

.page-faq .fact-list strong {
  display: block;
  color: var(--paper);
  font-size: 15px;
  margin-bottom: 3px;
}

/* ---------- 手风琴问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-hair);
  background: transparent;
  transition: background 0.2s var(--ease);
}

.page-faq .qa[open] {
  background: var(--faq-panel);
}

.page-faq .qa__q {
  cursor: pointer;
  list-style: none;
  padding: 16px 40px 16px 16px;
  position: relative;
  font-size: 15px;
  line-height: 1.7;
  font-weight: 600;
  color: var(--paper);
}

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

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold);
  transition: transform 0.2s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
}

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

.page-faq .qa__a {
  padding: 0 16px 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

.page-faq .qa__a p:last-child {
  margin-bottom: 0;
}

.page-faq .qa__a a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 版本对照 ---------- */
.page-faq .ver-switch {
  position: relative;
}

.page-faq .ver-switch__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .ver-switch__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .ver-switch__tabs label {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  padding: 9px 13px;
  color: var(--mist);
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq #ver-v31:checked ~ .ver-switch__tabs label[for="ver-v31"],
.page-faq #ver-v30:checked ~ .ver-switch__tabs label[for="ver-v30"],
.page-faq #ver-v2x:checked ~ .ver-switch__tabs label[for="ver-v2x"] {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-faq #ver-v31:focus-visible ~ .ver-switch__tabs label[for="ver-v31"],
.page-faq #ver-v30:focus-visible ~ .ver-switch__tabs label[for="ver-v30"],
.page-faq #ver-v2x:focus-visible ~ .ver-switch__tabs label[for="ver-v2x"] {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-faq .ver-panels__panel {
  display: none;
}

.page-faq #ver-v31:checked ~ .ver-panels .ver-panels__panel--v31,
.page-faq #ver-v30:checked ~ .ver-panels .ver-panels__panel--v30,
.page-faq #ver-v2x:checked ~ .ver-panels .ver-panels__panel--v2x {
  display: block;
  animation: faq-fade 0.24s var(--ease) both;
}

@keyframes faq-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.page-faq .ver-row {
  display: grid;
  gap: 6px;
  margin: 0 0 1px;
  padding: 16px 16px 18px;
  background: var(--faq-panel);
  border-left: 2px solid var(--teal);
}

.page-faq .ver-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.page-faq .ver-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .ver-foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
  padding-left: 16px;
  border-left: 1px solid var(--faq-hair);
}

.page-faq .ver-foot a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-sec--support .faq-sec__head {
  margin-bottom: 20px;
}

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

.page-faq .support-card {
  padding: 20px 18px 22px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-hair);
  border-top: 2px solid var(--gold);
}

.page-faq .support-card__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .support-card__value {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--gold);
  word-break: break-all;
}

.page-faq .support-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .support-foot {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .support-foot a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .step {
    gap: 22px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: 48px;
    padding: 34px 0 46px;
  }

  .page-faq .faq-hero__figure {
    margin-bottom: 6px;
  }

  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    margin-top: 44px;
  }

  .page-faq .faq-side__inner {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
  }

  .page-faq .topic-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .archive-grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-sec {
    padding: 46px 0 14px;
  }

  .page-faq .faq-sec__head {
    gap: 22px;
    margin-bottom: 28px;
  }

  .page-faq .qa__q {
    font-size: 16px;
    padding: 18px 46px 18px 20px;
  }

  .page-faq .qa__a {
    padding: 0 20px 20px;
    max-width: 72ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .topic-card::before,
  .page-faq .topic-card,
  .page-faq .qa__q::after,
  .page-faq .ver-switch__tabs label {
    transition: none;
  }

  .page-faq #ver-v31:checked ~ .ver-panels .ver-panels__panel--v31,
  .page-faq #ver-v30:checked ~ .ver-panels .ver-panels__panel--v30,
  .page-faq #ver-v2x:checked ~ .ver-panels .ver-panels__panel--v2x {
    animation: none;
  }
}
<<<END>>>