.page-faq {
  background: var(--mist);
  color: var(--ink);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-top: clamp(24px, 5vw, 56px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: end;
}

.page-faq .faq-hero__lede {
  max-width: 46ch;
}

.page-faq .faq-hero__title {
  font-size: clamp(2.1rem, 8.4vw, 4.6rem);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 10px 0 18px;
}

.page-faq .faq-hero__media {
  margin: 0;
  aspect-ratio: 7 / 4;
  border: 1px solid var(--ink);
  background: var(--paper);
  overflow: hidden;
}

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

/* ---------- 快速定位条 ---------- */

.page-faq .faq-finder {
  margin-top: clamp(24px, 3.4vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--ink);
  background: var(--paper);
  box-shadow: 6px 6px 0 var(--lime-soft);
}

.page-faq .faq-finder__label {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono-font);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-faq .faq-finder__label::before {
  content: "";
  flex: none;
  width: 13px;
  height: 13px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  box-shadow: 7px 7px 0 -5px var(--ink);
}

.page-faq .faq-finder__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-finder__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: var(--step-2);
  color: var(--ink);
  text-decoration: none;
  transition: background 160ms var(--ease), border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-faq .faq-finder__link:hover,
.page-faq .faq-finder__link:focus-visible {
  background: var(--lime);
  border-color: var(--ink);
  transform: translateY(-2px);
}

.page-faq .faq-finder__num {
  font-size: var(--step-1);
  letter-spacing: 0.08em;
  color: var(--grey);
}

/* ---------- 问答栈 ---------- */

.page-faq .faq-stack {
  padding-top: clamp(40px, 6vw, 80px);
}

.page-faq .faq-group {
  --acc: var(--lime);
  --acc-ink: var(--ink);
  margin-bottom: clamp(38px, 5vw, 68px);
}

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

.page-faq .faq-group--download {
  --acc: var(--clay);
  --acc-ink: var(--ink);
}

.page-faq .faq-group--save {
  --acc: var(--forest);
  --acc-ink: var(--paper);
}

.page-faq .faq-group--version {
  --acc: var(--ink);
  --acc-ink: var(--paper);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ink);
}

.page-faq .faq-group__num {
  font-family: var(--mono-font);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  padding: 3px 9px;
  border-radius: 2px;
  background: var(--acc);
  color: var(--acc-ink);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.25rem, 4.6vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__hint {
  margin-left: auto;
  padding: 3px 9px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: var(--step-1);
  letter-spacing: 0.04em;
  color: var(--grey);
}

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

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

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  transition: background 180ms 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 {
  background: var(--paper);
}

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

.page-faq .faq-item__index {
  font-family: var(--mono-font);
  font-size: var(--step-1);
  letter-spacing: 0.08em;
  color: var(--grey);
  line-height: 1.9;
}

.page-faq .faq-item__q {
  font-size: clamp(1rem, 3.8vw, 1.125rem);
  font-weight: 600;
  line-height: 1.55;
}

.page-faq .faq-item__icon {
  position: relative;
  align-self: center;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-item__icon::before {
  top: 6.5px;
  left: 0;
  width: 14px;
  height: 1.5px;
}

.page-faq .faq-item__icon::after {
  top: 0;
  left: 6.5px;
  width: 1.5px;
  height: 14px;
}

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

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

.page-faq .faq-item__body {
  display: grid;
  gap: 14px;
  padding: 0 4px 22px;
  animation: faqItemIn 260ms var(--ease);
}

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

.page-faq .faq-item__concl {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--acc);
  font-size: var(--step-3);
  line-height: 1.72;
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  font-size: var(--step-2);
  line-height: 1.72;
  color: var(--grey);
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--mono-font);
  font-size: var(--step-1);
  letter-spacing: 0.06em;
  line-height: 2;
  color: var(--ink);
}

/* ---------- 文档与离线 ---------- */

.page-faq .faq-docs {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-faq .faq-docs__sheet {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(22px, 4vw, 46px);
  background: var(--forest);
  color: var(--mist);
  border: 1px solid var(--forest);
}

.page-faq .faq-docs__body {
  min-width: 0;
}

.page-faq .faq-docs__title {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 4.8vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-docs__text {
  margin: 0;
  max-width: 52ch;
  font-size: var(--step-3);
  line-height: 1.75;
  color: rgba(244, 242, 237, 0.86);
}

.page-faq .faq-docs__facts {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 1px solid rgba(244, 242, 237, 0.22);
}

.page-faq .faq-docs__facts > li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(244, 242, 237, 0.22);
}

.page-faq .faq-docs__key {
  font-family: var(--mono-font);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-docs__val {
  font-size: var(--step-2);
  line-height: 1.72;
  color: rgba(244, 242, 237, 0.88);
}

.page-faq .faq-docs__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid rgba(244, 242, 237, 0.3);
  overflow: hidden;
}

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

/* ---------- 人工通道 ---------- */

.page-faq .faq-help-wrap {
  padding-top: clamp(40px, 6vw, 72px);
}

.page-faq .faq-help {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 42px);
  background: var(--lime-soft);
  border: 1px solid var(--ink);
}

.page-faq .faq-help__title {
  margin: 0;
  font-size: clamp(1.4rem, 4.4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-help__text {
  margin: 0;
  max-width: 58ch;
  font-size: var(--step-3);
  line-height: 1.75;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.page-faq .faq-help__mail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px dashed var(--ink);
  background: var(--paper);
  font-size: var(--step-2);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__mail .mono {
  word-break: break-all;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-finder {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 20px;
    padding: 15px 20px;
  }

  .page-faq .faq-item__summary {
    gap: 16px;
    padding: 18px 6px;
  }

  .page-faq .faq-item__body {
    padding: 0 6px 26px 40px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-docs__sheet {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
    gap: clamp(28px, 4vw, 52px);
  }

  .page-faq .faq-docs__facts > li {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__body {
    animation: none;
  }

  .page-faq .faq-finder__link,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }

  .page-faq .faq-finder__link:hover {
    transform: none;
  }
}
<<<END>>>