.page-faq {
  padding-block: clamp(18px, 3.5vw, 40px) clamp(56px, 9vw, 104px);
  padding-inline: clamp(16px, 4vw, 48px);
  color: var(--star);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
}

.page-faq > * {
  max-width: var(--maxw);
  margin-inline: auto;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 130% at 4% 0%, rgba(108, 74, 182, .32), transparent 62%),
    radial-gradient(52% 110% at 96% 4%, rgba(242, 193, 78, .10), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__coord {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--nebula-lite);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 4.6vw, 3.1rem);
  line-height: 1.16;
  letter-spacing: .045em;
}

.page-faq .faq-hero__lead {
  margin: 0 0 26px;
  max-width: 62ch;
  color: var(--satellite);
  font-size: clamp(.95rem, 1.3vw, 1.05rem);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--orbit);
}

.page-faq .faq-hero__facts b {
  font-family: var(--font-mono);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--galaxy);
}

.page-faq .faq-hero__facts span {
  font-size: .82rem;
  color: var(--satellite);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-hero__jumplabel {
  margin-right: 4px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--satellite);
}

.page-faq .faq-hero__jump a {
  display: inline-block;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(20, 41, 79, .6);
  color: var(--star);
  font-size: .84rem;
  text-decoration: none;
  transition: border-color var(--dur) ease, color var(--dur) ease, background var(--dur) ease, transform var(--dur) ease;
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  border-color: var(--galaxy);
  background: rgba(108, 74, 182, .26);
  color: var(--galaxy-lite);
  transform: translateY(-1px);
}

/* ---------- 问题导航 ---------- */
.page-faq .faq-map {
  margin-top: clamp(40px, 6vw, 72px);
}

.page-faq .faq-map__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-map__coord {
  margin: 0 0 6px;
}

.page-faq .faq-map__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 2.6vw, 2.05rem);
  letter-spacing: .05em;
}

.page-faq .faq-map__lead {
  margin: 0 0 26px;
  max-width: 56ch;
  color: var(--satellite);
}

.page-faq .faq-cats {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cat-link a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--orbit);
  border-radius: var(--r);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--dur) ease, background var(--dur) ease, transform var(--dur) ease;
}

.page-faq .faq-cat-link a:hover,
.page-faq .faq-cat-link a:focus-visible {
  border-left-color: var(--galaxy);
  background: #1a3259;
  transform: translateX(2px);
}

.page-faq .faq-cat-link__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--nebula-lite);
}

.page-faq .faq-cat-link__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.page-faq .faq-cat-link__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: .04em;
}

.page-faq .faq-cat-link__eg {
  font-size: .8rem;
  line-height: 1.6;
  color: var(--satellite);
}

.page-faq .faq-cat-link__count {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--galaxy);
  white-space: nowrap;
}

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

.page-faq .faq-map__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: var(--void);
}

/* ---------- 轨道 + 问答流 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
  margin-top: clamp(48px, 7vw, 86px);
}

.page-faq .faq-rail {
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: rgba(5, 11, 28, .72);
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--satellite);
}

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

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 152px;
  padding: 10px;
  border-left: 2px solid transparent;
  border-radius: 2px;
  color: var(--satellite);
  font-size: .86rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) ease, border-color var(--dur) ease, background var(--dur) ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-left-color: var(--galaxy);
  background: rgba(108, 74, 182, .22);
  color: var(--star);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--nebula-lite);
}

.page-faq .faq-rail__name {
  flex: 1 1 auto;
}

.page-faq .faq-rail__count {
  padding: 1px 6px;
  border: 1px solid rgba(242, 193, 78, .38);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--galaxy);
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-block {
  scroll-margin-top: 84px;
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-faq .faq-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-block__coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--nebula-lite);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.28rem, 2.2vw, 1.7rem);
  letter-spacing: .055em;
  line-height: 1.35;
}

.page-faq .faq-block__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--galaxy);
  letter-spacing: .04em;
}

.page-faq .faq-block__lead {
  margin: 0 0 22px;
  max-width: 62ch;
  color: var(--satellite);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 8px;
}

.page-faq .faq-list--after {
  margin-top: 24px;
}

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--orbit);
  border-radius: var(--r);
  background: var(--surface);
  transition: border-color var(--dur) ease, background var(--dur) ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--nebula);
  background: #16305a;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .97rem;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--star);
  transition: color var(--dur) ease;
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--galaxy-lite);
}

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--nebula-lite);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 7px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 14px;
  height: 1px;
  background: var(--satellite);
  transition: transform var(--dur) ease, background var(--dur) ease;
}

.page-faq .faq-item__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--galaxy);
  transform: rotate(45deg);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  background: var(--galaxy);
  transform: rotate(135deg);
}

.page-faq .faq-item__a {
  padding: 0 16px 16px 46px;
  font-size: .92rem;
  color: var(--satellite);
}

.page-faq .faq-item__a p {
  margin: 0 0 .8em;
}

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

.page-faq .faq-item__a a {
  color: var(--galaxy);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, .45);
}

.page-faq .faq-item__a a:hover {
  color: var(--galaxy-lite);
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding-top: 8px;
  border-top: 1px dashed rgba(42, 74, 133, .55);
  font-size: .88rem;
  line-height: 1.72;
  color: var(--satellite);
}

.page-faq .faq-steps__n {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--mint);
}

/* ---------- 板块导览 ---------- */
.page-faq .faq-zone {
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--nebula);
  border-radius: var(--r);
  background: linear-gradient(180deg, rgba(108, 74, 182, .18), rgba(20, 41, 79, .86) 46%);
}

.page-faq .faq-zone p {
  margin: 0 0 14px;
  max-width: 66ch;
  color: var(--star);
}

.page-faq .faq-zone .faq-steps {
  margin-top: 20px;
}

/* ---------- 收藏周期 ---------- */
.page-faq .faq-cycles-fig {
  margin: 0 0 22px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: var(--void);
}

.page-faq .faq-cycles-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 5;
  object-fit: cover;
}

.page-faq .faq-cycles-fig figcaption {
  padding: 8px 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--satellite);
}

.page-faq .faq-cycles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-faq .faq-cycle {
  position: relative;
  overflow: hidden;
  padding: 16px 14px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--nebula-lite);
  border-radius: var(--r);
  background: var(--surface);
  transition: border-color var(--dur) ease, background var(--dur) ease, transform var(--dur) ease;
}

.page-faq .faq-cycle::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(232, 238, 252, .6) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .1;
  pointer-events: none;
  transition: opacity var(--dur) ease;
}

.page-faq .faq-cycle--30::before {
  background-size: 20px 20px;
  opacity: .14;
}

.page-faq .faq-cycle--90::before {
  background-size: 15px 15px;
  opacity: .17;
}

.page-faq .faq-cycle--long::before {
  background-size: 10px 10px;
  opacity: .21;
}

.page-faq .faq-cycle:hover {
  border-top-color: var(--galaxy);
  background: #183260;
  transform: translateY(-2px);
}

.page-faq .faq-cycle:hover::before {
  opacity: .26;
}

.page-faq .faq-cycle > * {
  position: relative;
}

.page-faq .faq-cycle__len {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--galaxy);
}

.page-faq .faq-cycle__fit {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .04em;
  color: var(--star);
}

.page-faq .faq-cycle__note {
  margin: 0;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--satellite);
}

.page-faq .faq-cycle__hover {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(42, 74, 133, .6);
  font-size: .8rem;
  line-height: 1.7;
  color: var(--nebula-lite);
  opacity: .72;
  transition: opacity var(--dur) ease, color var(--dur) ease;
}

.page-faq .faq-cycle:hover .faq-cycle__hover,
.page-faq .faq-cycle:focus-within .faq-cycle__hover {
  opacity: 1;
  color: var(--galaxy-lite);
}

/* ---------- 症状排查 ---------- */
.page-faq .faq-sym {
  display: grid;
  gap: 10px;
}

.page-faq .faq-sym__row {
  display: grid;
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: var(--surface);
  transition: border-color var(--dur) ease;
}

.page-faq .faq-sym__row:hover {
  border-color: var(--line);
}

.page-faq .faq-sym__sym {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--mint);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .96rem;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--star);
}

.page-faq .faq-sym__sym span {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--mint);
}

.page-faq .faq-sym__row .faq-steps {
  margin-top: 8px;
}

.page-faq .faq-sym__row .faq-steps li:first-child {
  padding-top: 0;
  border-top: 0;
}

/* ---------- 联系 ---------- */
.page-faq .faq-block--ask {
  padding-top: clamp(28px, 4vw, 46px);
  border-top: 1px dashed rgba(42, 74, 133, .6);
}

.page-faq .faq-block--ask > p {
  margin: 0 0 18px;
  max-width: 62ch;
  color: var(--satellite);
}

.page-faq .faq-asklist {
  display: grid;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-asklist li {
  position: relative;
  padding-left: 22px;
  font-size: .92rem;
  color: var(--satellite);
}

.page-faq .faq-asklist li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .74em;
  width: 5px;
  height: 5px;
  border: 1px solid var(--mint);
  transform: rotate(45deg);
}

.page-faq .faq-contact {
  display: grid;
  gap: 10px;
  max-width: 560px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--nebula);
  border-radius: var(--r);
  background: var(--surface);
}

.page-faq .faq-contact__key {
  flex: 0 0 72px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--satellite);
}

.page-faq .faq-contact__val {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: .92rem;
  color: var(--star);
  word-break: break-all;
}

.page-faq .faq-ask__foot {
  margin: 18px 0 0;
  font-size: .84rem;
  color: var(--satellite);
}

.page-faq .faq-ask__foot a {
  color: var(--galaxy);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, .4);
}

.page-faq .faq-ask__foot a:hover {
  color: var(--galaxy-lite);
  border-bottom-color: var(--galaxy-lite);
}

/* ---------- 窄屏修正 ---------- */
@media (max-width: 599px) {
  .page-faq .faq-item__a {
    padding-left: 16px;
  }

  .page-faq .faq-block__count {
    margin-left: 0;
  }

  .page-faq .faq-cat-link a {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .page-faq .faq-cat-link__count {
    grid-column: 2;
    justify-self: start;
  }
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 860px) {
  .page-faq .faq-cycles {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-sym__row {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-map__grid {
    grid-template-columns: minmax(0, 1fr) 380px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 214px minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 3.4vw, 52px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 24px;
    padding: 18px 14px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-rail__link {
    min-width: 0;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}