.page-faq {
  --faq-acc: var(--lime);
  --faq-hair: rgba(242, 237, 228, 0.13);
  --faq-hair-strong: rgba(242, 237, 228, 0.28);
  display: block;
  padding: 0 0 clamp(56px, 8vw, 104px);
  color: var(--paper);
  background:
    radial-gradient(1100px 480px at 84% -6%, rgba(182, 255, 60, 0.075), transparent 62%),
    radial-gradient(820px 420px at 4% 18%, rgba(255, 62, 154, 0.06), transparent 60%),
    var(--ink-0);
}

.page-faq .faq-top {
  padding-top: 1px;
}

.page-faq .faq-crumbs {
  margin: 22px 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hd {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 4vw, 42px) 0 clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hd__title {
  margin: 0;
  max-width: 20ch;
  font-size: clamp(32px, 6.4vw, 68px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.022em;
}

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

.page-faq .faq-hd__lede {
  margin: 0;
  max-width: 64ch;
  color: var(--ice);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
}

.page-faq .faq-hd__jump {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: var(--ink-1);
  color: var(--paper);
  font-size: 13.5px;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}

.page-faq .faq-chip .mono {
  color: var(--lime);
  font-size: 11.5px;
  letter-spacing: 0.1em;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--lime);
  background: rgba(182, 255, 60, 0.09);
  transform: translateY(-1px);
  outline: none;
}

@media (min-width: 960px) {
  .page-faq .faq-hd {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(28px, 4vw, 72px);
    align-items: end;
  }

  .page-faq .faq-hd > .kicker {
    grid-column: 1 / -1;
  }

  .page-faq .faq-hd__title {
    grid-column: 1;
  }

  .page-faq .faq-hd__lede {
    grid-column: 2;
    align-self: end;
  }

  .page-faq .faq-hd__jump {
    grid-column: 1 / -1;
    margin-top: 10px;
  }

  .page-faq .faq-br {
    display: inline;
  }
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  padding-top: clamp(26px, 4vw, 48px);
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(184px, 232px) minmax(0, 1fr);
    column-gap: clamp(34px, 5vw, 76px);
    align-items: start;
  }
}

/* ---------- 左侧分类索引 ---------- */
.page-faq .faq-rail {
  border-top: 2px solid var(--lime);
  padding-top: 12px;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ice);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 13px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: var(--ink-1);
  color: var(--paper);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-rail__num {
  color: var(--lime);
  font-size: 11.5px;
  letter-spacing: 0.1em;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--lime);
  background: rgba(182, 255, 60, 0.08);
  outline: none;
}

@media (min-width: 1000px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    width: 100%;
    justify-content: flex-start;
    white-space: normal;
    border: 0;
    border-bottom: 1px solid var(--faq-hair);
    border-radius: 0;
    background: transparent;
    padding: 12px 2px;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    background: rgba(182, 255, 60, 0.06);
    border-bottom-color: var(--lime);
  }
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  --acc: var(--lime);
  scroll-margin-top: 104px;
  padding-bottom: clamp(28px, 4vw, 48px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(30px, 4vw, 56px);
}

.page-faq .faq-group--entry {
  --acc: var(--lime);
}

.page-faq .faq-group--columns {
  --acc: var(--amber);
}

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

.page-faq .faq-group--device {
  --acc: var(--ice);
}

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

.page-faq .faq-group__hd {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  border-top: 2px solid var(--acc);
  padding-top: 14px;
  margin-bottom: 6px;
}

.page-faq .faq-group__no {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--acc);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 2.7vw, 30px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.012em;
}

.page-faq .faq-group__note {
  flex-basis: 100%;
  margin: 0;
  max-width: 60ch;
  color: var(--ice);
  font-size: 14.5px;
  line-height: 1.72;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--faq-hair);
  background: transparent;
  transition: background-color 0.18s var(--ease);
}

.page-faq .qa:hover {
  background: rgba(242, 237, 228, 0.04);
}

.page-faq .qa[open] {
  background: rgba(14, 21, 36, 0.72);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 17px 14px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15.5px, 1.5vw, 17px);
  line-height: 1.55;
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__idx {
  padding-top: 3px;
  font-size: 11.5px;
  letter-spacing: 0.09em;
  color: var(--acc);
  opacity: 0.85;
}

.page-faq .qa__text {
  color: var(--paper);
  font-weight: 500;
  transition: color 0.16s var(--ease);
}

.page-faq .qa__q:hover .qa__text,
.page-faq .qa__q:focus-visible .qa__text,
.page-faq .qa[open] .qa__text {
  color: var(--acc);
}

.page-faq .qa__q:focus-visible {
  outline: 1px solid var(--acc);
  outline-offset: -1px;
}

.page-faq .qa__marker {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  flex: none;
}

.page-faq .qa__marker::before,
.page-faq .qa__marker::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--acc);
  transform: translate(-50%, -50%);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-faq .qa__marker::before {
  width: 14px;
  height: 1.5px;
}

.page-faq .qa__marker::after {
  width: 1.5px;
  height: 14px;
}

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

.page-faq .qa__a {
  padding: 0 14px 22px;
  color: var(--ice);
  font-size: clamp(14.5px, 1.4vw, 16px);
  line-height: 1.85;
}

.page-faq .qa__a > p {
  margin: 0 0 10px;
  max-width: 68ch;
}

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

@media (min-width: 760px) {
  .page-faq .qa__a {
    padding-left: calc(14px + 46px);
  }
}

.page-faq .faq-link {
  color: var(--acc);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: opacity 0.16s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  opacity: 0.72;
  outline: none;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--faq-hair);
  background: var(--ink-1);
  overflow: hidden;
}

.page-faq .faq-figure--wide {
  max-width: 100%;
}

.page-faq .faq-figure--portrait {
  max-width: 100%;
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background:
    linear-gradient(150deg, rgba(63, 90, 74, 0.5), rgba(7, 11, 20, 0.9)),
    var(--ink-2);
}

.page-faq .faq-figure__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--faq-hair);
  color: var(--ice);
  font-size: 13px;
  line-height: 1.65;
}

@media (min-width: 680px) {
  .page-faq .faq-figure--portrait {
    max-width: 400px;
  }
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(30px, 4vw, 54px);
  padding: clamp(22px, 3vw, 36px);
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--lime);
  background:
    linear-gradient(120deg, rgba(182, 255, 60, 0.07), transparent 55%),
    var(--ink-1);
  display: grid;
  gap: 14px;
}

.page-faq .faq-cta__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 900;
  letter-spacing: -0.012em;
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 66ch;
  color: var(--ice);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 2px;
}

@media (max-width: 480px) {
  .page-faq .faq-cta__acts .btn {
    width: 100%;
    text-align: center;
  }
}