.page-faq {
  --faq-num-w: 3.2rem;
  --faq-gap: .9rem;
  background: var(--paper);
  color: var(--text);
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(1.75rem, 4.5vw, 3.5rem);
  padding-bottom: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-faq .faq-hero__kicker {
  margin: 1.25rem 0 .85rem;
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.9rem, 5.4vw, 3.35rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  margin: 1.25rem 0 0;
  max-width: 50ch;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}

/* ---------- 分组跳转条 ---------- */
.page-faq .faq-tabs {
  position: sticky;
  top: 0;
  z-index: 6;
  background: var(--shell);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-tabs__inner {
  display: flex;
  gap: .25rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding-top: .3rem;
}

.page-faq .faq-tabs__inner::-webkit-scrollbar { display: none; }

.page-faq .faq-tabs__item {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem .9rem;
  font-size: .9375rem;
  font-weight: 600;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-tabs__item .mono {
  font-size: .75rem;
  color: var(--gold-deep);
}

.page-faq .faq-tabs__item:hover,
.page-faq .faq-tabs__item:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

/* ---------- 分组容器与刻度分隔 ---------- */
.page-faq .faq-group {
  position: relative;
  padding-top: clamp(2rem, 4.5vw, 3.25rem);
  padding-bottom: clamp(1.75rem, 4vw, 2.75rem);
  scroll-margin-top: 4.5rem;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  right: var(--gutter);
  height: 8px;
  background:
    linear-gradient(var(--line), var(--line)) 0 0 / 100% 1px no-repeat,
    repeating-linear-gradient(to right, var(--line) 0 1px, transparent 1px 10px) 0 7px / 100% 1px no-repeat;
}

.page-faq .faq-group__lead {
  max-width: 58ch;
  margin: .9rem 0 1.5rem;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 分组总览 ---------- */
.page-faq .faq-overview {
  display: grid;
  gap: .85rem;
  margin-top: 1.5rem;
}

.page-faq .faq-overview__card {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.25rem 1.15rem 1.15rem;
  background: var(--shell);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  color: inherit;
  text-decoration: none;
  transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .faq-overview__card:hover,
.page-faq .faq-overview__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--gold-deep);
  box-shadow: 0 12px 26px -20px rgba(14, 27, 42, .75);
}

.page-faq .faq-overview__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
}

.page-faq .faq-overview__code {
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--gold-deep);
}

.page-faq .faq-overview__count {
  font-size: .75rem;
  color: var(--mist);
}

.page-faq .faq-overview__name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-overview__hint {
  font-size: .875rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-overview__hint b {
  font-weight: 700;
  color: var(--ink);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-subhead {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin: 2rem 0 .35rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-subhead::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

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

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

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: var(--faq-num-w) 1fr auto;
  gap: 0 var(--faq-gap);
  align-items: start;
  padding: 1.1rem 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__num {
  padding-top: .32rem;
  font-size: .8125rem;
  letter-spacing: .06em;
  color: var(--gold-deep);
}

.page-faq .qa__q {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  transition: color .2s var(--ease);
}

.page-faq .qa__summary:hover .qa__q,
.page-faq .qa__summary:focus-visible .qa__q {
  color: var(--gold-deep);
}

.page-faq .qa__chev {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: .45rem;
}

.page-faq .qa__chev::before,
.page-faq .qa__chev::after {
  content: "";
  position: absolute;
  background: var(--gold-deep);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

.page-faq .qa__chev::before { left: 0; top: 6px; width: 14px; height: 2px; }
.page-faq .qa__chev::after { left: 6px; top: 0; width: 2px; height: 14px; }

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

.page-faq .qa__body {
  padding: 0 0 1.4rem calc(var(--faq-num-w) + var(--faq-gap));
}

.page-faq .qa__body p {
  margin: 0 0 .85rem;
  max-width: 68ch;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--ink-soft);
  overflow-wrap: break-word;
}

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

.page-faq .qa__steps {
  counter-reset: step;
  list-style: none;
  display: grid;
  gap: .55rem;
  margin: .3rem 0 1rem;
  padding: 0;
  max-width: 68ch;
}

.page-faq .qa__steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 1.9rem 1fr;
  gap: .6rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-faq .qa__steps li::before {
  content: counter(step, decimal-leading-zero);
  padding-top: .18rem;
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--gold-deep);
}

.page-faq .qa__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1rem;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 1.5rem 0 1.75rem;
  padding: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--shell);
}

.page-faq .faq-figure__cap {
  margin-top: .7rem;
  padding-left: .85rem;
  border-left: 2px solid var(--gold);
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 求助区块 ---------- */
.page-faq .faq-help {
  margin-top: clamp(2rem, 4.5vw, 3.25rem);
  padding: clamp(1.75rem, 4vw, 3.25rem);
  background: var(--ink);
  color: var(--invert);
}

.page-faq .faq-help__title {
  margin: 0 0 1rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  line-height: 1.25;
  color: var(--invert);
}

.page-faq .faq-help__text {
  max-width: 62ch;
  margin: 0 0 .9rem;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: rgba(251, 247, 239, .84);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 1.5rem 2.5rem;
  margin-top: 1.5rem;
}

.page-faq .faq-help__list {
  display: grid;
  gap: .75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .7rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(251, 247, 239, .84);
}

.page-faq .faq-help__list .mono {
  padding-top: .15rem;
  font-size: .8125rem;
  color: var(--gold);
}

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

.page-faq .faq-help__contact dt {
  margin-bottom: .2rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(251, 247, 239, .55);
}

.page-faq .faq-help__contact dd {
  margin: 0 0 .85rem;
  font-size: .9375rem;
  line-height: 1.6;
  color: var(--invert);
  word-break: break-word;
}

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

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-overview { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 760px) {
  .page-faq .faq-help__grid { grid-template-columns: 1.1fr 1fr; }
}

@media (min-width: 1080px) {
  .page-faq .faq-overview { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-faq .qa__q { font-size: 1.125rem; }
}

@media (max-width: 1023px) {
  .page-faq .faq-tabs { top: var(--rail-h); }
}

@media (max-width: 560px) {
  .page-faq .qa__summary {
    grid-template-columns: 1fr auto;
    padding: .95rem 0;
  }
  .page-faq .qa__num {
    grid-column: 1 / -1;
    padding-top: 0;
    margin-bottom: .35rem;
  }
  .page-faq .qa__chev { margin-top: .3rem; }
  .page-faq .qa__body { padding-left: 0; }
  .page-faq .faq-group::before { left: var(--gutter); right: var(--gutter); }
  .page-faq .faq-hero__title { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__chev::before,
  .page-faq .qa__chev::after,
  .page-faq .qa__q,
  .page-faq .faq-overview__card,
  .page-faq .faq-tabs__item {
    transition: none;
  }
  .page-faq .faq-overview__card:hover { transform: none; }
}