.page-faq {
  --faq-index-w: 236px;
  --faq-ink-soft: rgba(244, 239, 230, .76);
  background: var(--paper);
  padding-bottom: clamp(48px, 8vw, 104px);
}

/* ---------- 页头 ---------- */
.page-faq .faq-head {
  padding: clamp(22px, 4.5vw, 48px) 0 0;
}

.page-faq .faq-head__grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-head__grid::before {
  content: "";
  display: block;
  width: clamp(96px, 20vw, 220px);
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--flare), var(--yellow) 55%, var(--sky));
  transform: rotate(-1.4deg);
  transform-origin: left center;
  margin-bottom: 4px;
}

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

.page-faq .faq-head__title {
  margin: 0;
  max-width: 14em;
  font-weight: 900;
  font-size: clamp(36px, 7.4vw, 84px);
  line-height: 1.02;
  letter-spacing: -.025em;
  color: var(--ink);
}

.page-faq .faq-head__lede {
  margin: 0;
  max-width: 38em;
  color: var(--ink-70);
  font-size: clamp(15px, .5vw + 13px, 17.5px);
  line-height: 1.85;
}

.page-faq .faq-head__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-head__count {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--rock);
}

/* ---------- 顶部通栏视觉 ---------- */
.page-faq .faq-band {
  margin-top: clamp(26px, 4vw, 46px);
}

.page-faq .faq-band__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 2px;
  background: var(--ice-soft);
}

.page-faq .faq-band__media::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg,
    var(--red) 0 20%,
    var(--yellow) 20% 40%,
    var(--green) 40% 60%,
    var(--sky) 60% 80%,
    var(--flare) 80% 100%);
}

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

@media (min-width: 720px) {
  .page-faq .faq-band__media { aspect-ratio: 1000 / 340; }
}

/* ---------- 主题筛选 ---------- */
.page-faq .filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: clamp(22px, 3.5vw, 38px) 0 clamp(26px, 4vw, 46px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--rock);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 40px);
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }
}

/* ---------- 左栏索引 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  white-space: nowrap;
  padding: 9px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  background: var(--snow);
  color: var(--ink-70);
  font-size: 14px;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--sky-deep);
  border-color: var(--ice);
  background: var(--ice-soft);
}

.page-faq .faq-index__n {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  color: var(--rock);
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--cmdbar-h) + 28px);
    align-self: start;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding: 0;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-index__list li { display: block; }

  .page-faq .faq-index__link {
    justify-content: space-between;
    padding: 11px 2px 11px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    background: transparent;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: var(--ice-soft);
    border-left-color: var(--flare);
    padding-left: 16px;
  }
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--cmdbar-h) + 20px);
  margin-bottom: clamp(38px, 6vw, 72px);
}

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

.page-faq .faq-group__lede {
  margin: 10px 0 20px;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 组内插图 ---------- */
.page-faq .faq-fig {
  margin: 0 0 22px;
}

.page-faq .faq-fig__media {
  aspect-ratio: 12 / 7;
  overflow: hidden;
  border-radius: 2px;
  background: var(--ice-soft);
  box-shadow: var(--lift-1);
}

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

.page-faq .faq-fig__cap {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--rock);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line);
  transition: background-color .2s var(--ease);
}

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

.page-faq .faq-item[open] {
  background: linear-gradient(180deg, var(--snow), rgba(255, 255, 255, 0));
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: start;
  padding: 15px 6px 15px 2px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, .5vw + 13px, 16.5px);
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .faq-q::-webkit-details-marker { display: none; }
.page-faq .faq-q::marker { content: ""; }

.page-faq .faq-q:hover {
  color: var(--sky-deep);
}

.page-faq .faq-q__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--rock);
  padding-top: .42em;
  transition: color .18s var(--ease);
}

.page-faq .faq-q__sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: .42em;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--sky);
  transition: transform .2s var(--ease), opacity .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-q__sign::before {
  left: 0;
  top: 7.25px;
  width: 16px;
  height: 1.5px;
}

.page-faq .faq-q__sign::after {
  left: 7.25px;
  top: 0;
  width: 1.5px;
  height: 16px;
}

.page-faq .faq-item[open] .faq-q {
  color: var(--sky-deep);
}

.page-faq .faq-item[open] .faq-q__num {
  color: var(--flare);
}

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

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

/* ---------- 答案 ---------- */
.page-faq .faq-a {
  padding: 2px 6px 22px;
  margin-left: calc(2.4em + 10px);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-70);
}

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

.page-faq .faq-a .link-arrow {
  white-space: nowrap;
}

.page-faq .steps {
  counter-reset: st;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .steps li {
  counter-increment: st;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-faq .steps li::before {
  content: counter(st, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--flare);
  padding-top: .5em;
}

@media (max-width: 560px) {
  .page-faq .faq-a {
    margin-left: 0;
    padding-left: 2px;
  }

  .page-faq .faq-q {
    grid-template-columns: 1.9em minmax(0, 1fr) 16px;
    gap: 8px;
  }
}

/* ---------- 兜底联系 ---------- */
.page-faq .faq-help {
  margin-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-help__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
}

@media (min-width: 820px) {
  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-faq .faq-help .kicker {
  color: var(--ice);
  margin: 0;
}

.page-faq .faq-help h2 {
  margin: 12px 0 16px;
  font-size: clamp(26px, 3.4vw, 42px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--snow);
}

.page-faq .faq-help p {
  margin: 0 0 14px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-help__chan {
  padding: clamp(18px, 2.5vw, 26px);
  border: 1px solid var(--line-invert);
  border-radius: 2px;
  background: rgba(244, 239, 230, .04);
}

.page-faq .faq-help__contact {
  display: grid;
  gap: 4px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line-invert);
}

.page-faq .faq-help__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, .5);
}

.page-faq .faq-help__val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--snow);
  word-break: break-word;
  margin-bottom: 8px;
}

.page-faq .faq-help__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(244, 239, 230, .6);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q__num,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after,
  .page-faq .faq-item,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-head__grid::before {
    transform: none;
  }
}