.page-faq {
  position: relative;
  background: var(--ink);
  color: var(--fog);
  padding-top: var(--header-h);
  padding-bottom: 0;
  overflow-x: hidden;
}

.page-faq .breadcrumbs {
  padding: 20px 0 0;
}

.page-faq .breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--steel);
}

.page-faq .breadcrumb-link {
  color: var(--steel);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--lime);
}

.page-faq .breadcrumb-current {
  color: var(--fog-64);
}

.page-faq .crumb-sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: 28px;
  padding: 30px 0 42px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 76px;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--orange));
}

.page-faq .faq-kicker {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 8.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 900;
  max-width: 16ch;
}

.page-faq .faq-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--fog-80);
  max-width: 46ch;
}

.page-faq .faq-panel-version {
  background: var(--charcoal);
  border: 1px solid var(--line);
  border-left: 2px solid var(--lime);
  padding: 18px 18px 20px;
}

.page-faq .faq-panel-version .panel-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--steel);
}

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

.page-faq .faq-version-list {
  margin: 0;
  display: grid;
}

.page-faq .faq-version-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-version-row dt {
  font-size: 13px;
  color: var(--fog-64);
}

.page-faq .faq-version-row dd {
  margin: 0;
  font-size: 13px;
  color: var(--fog);
}

/* ---------- 主体布局 ---------- */

.page-faq .faq-body {
  padding-bottom: 72px;
}

.page-faq .qa-layout {
  padding: 36px 0 0;
}

.page-faq .qa-index-rail {
  margin-bottom: 32px;
}

.page-faq .qa-index-rail .panel-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .qa-index-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .qa-index {
  position: relative;
}

.page-faq .qa-index-link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--steel);
  text-decoration: none;
  font-size: 12.5px;
  line-height: 1.45;
  transition: color .2s var(--ease);
}

.page-faq .qa-index-link:hover,
.page-faq .qa-index-link:focus-visible {
  color: var(--fog);
}

.page-faq .qa-index-num {
  font-size: 11px;
  color: var(--line);
  padding-top: 1px;
  transition: color .2s var(--ease);
}

.page-faq .qa-index-link:hover .qa-index-num,
.page-faq .qa-index-link:focus-visible .qa-index-num {
  color: var(--orange);
}

/* ---------- 折叠问答 ---------- */

.page-faq .qa-stream {
  border-top: 1px solid var(--line);
}

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

.page-faq .qa-heading {
  margin: 0;
}

.page-faq .accordion-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 18px;
  gap: 12px;
  align-items: start;
  margin: 0;
  padding: 18px 2px;
  background: none;
  border: 0;
  text-align: left;
  color: var(--fog);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background .2s var(--ease);
}

.page-faq .accordion-trigger:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .qa-num {
  padding-top: 5px;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--steel);
  transition: color .2s var(--ease);
}

.page-faq .accordion-trigger[aria-expanded="true"] .qa-num {
  color: var(--lime);
}

.page-faq .accordion-icon {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  justify-self: end;
}

.page-faq .accordion-icon::before,
.page-faq .accordion-icon::after {
  content: "";
  position: absolute;
  background: var(--steel);
  transition: transform .2s var(--ease), background .2s var(--ease);
}

.page-faq .accordion-icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-faq .accordion-icon::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
}

.page-faq .accordion-trigger[aria-expanded="true"] .accordion-icon::before {
  background: var(--lime);
}

.page-faq .accordion-trigger[aria-expanded="true"] .accordion-icon::after {
  transform: scaleY(0);
}

.page-faq .accordion-panel {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .26s var(--ease), opacity .26s var(--ease);
}

.page-faq .accordion-panel[data-open] {
  max-height: 2400px;
  opacity: 1;
}

.page-faq .accordion-body-inner {
  padding: 0 2px 26px;
}

.page-faq .accordion-body-inner p {
  margin: 0 0 14px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog-80);
}

.page-faq .accordion-body-inner p:last-child {
  margin-bottom: 0;
}

.page-faq .accordion-body-inner a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, .4);
  transition: border-color .2s var(--ease);
}

.page-faq .accordion-body-inner a:hover,
.page-faq .accordion-body-inner a:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 步骤流程 ---------- */

.page-faq .qa-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 10px;
  margin: 4px 0 20px;
}

.page-faq .qa-flow-node {
  flex: 1 1 130px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px;
  background: var(--charcoal);
  border: 1px solid var(--line);
}

.page-faq .qa-flow-node--result {
  border-color: var(--lime);
  background: linear-gradient(180deg, rgba(198, 255, 61, .1), rgba(198, 255, 61, 0));
}

.page-faq .qa-flow-index {
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--lime);
}

.page-faq .qa-flow-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .qa-flow-sub {
  font-size: 11px;
  color: var(--steel);
}

.page-faq .qa-flow-arrow {
  align-self: center;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--steel);
}

/* ---------- 图片 ---------- */

.page-faq .media-frame {
  margin: 20px 0 22px;
  display: block;
}

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

.page-faq .media-frame__caption {
  display: block;
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--steel);
}

/* ---------- 标签色板 ---------- */

.page-faq .swatch-list {
  margin: 6px 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-faq .swatch-item {
  display: grid;
  gap: 8px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-faq .swatch-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .swatch-desc {
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--fog-64);
}

.page-faq .swatch-item .tag {
  justify-self: start;
}

/* ---------- 延伸入口 ---------- */

.page-faq .qa-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 28px 0 0;
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 40px 0 48px;
  }

  .page-faq .accordion-trigger {
    grid-template-columns: 44px minmax(0, 1fr) 20px;
    gap: 16px;
    padding: 22px 4px;
    font-size: 17px;
  }

  .page-faq .accordion-body-inner {
    padding: 0 4px 30px 60px;
  }

  .page-faq .swatch-item {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 18px;
    align-items: center;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 48px;
    align-items: end;
    padding: 56px 0 52px;
  }

  .page-faq .faq-hero-main {
    grid-column: 1;
  }

  .page-faq .faq-hero-side {
    grid-column: 2;
  }

  .page-faq .qa-layout {
    display: grid;
    grid-template-columns: 284px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding: 48px 0 0;
  }

  .page-faq .qa-index-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    margin-bottom: 0;
  }

  .page-faq .qa-index-list {
    grid-template-columns: 1fr;
    gap: 0;
  }
}