.page-faq {
  --faq-shadow: 6px 6px 0 rgba(0, 0, 0, 0.45);
  --faq-gap: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-cover__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: 22px;
}

.page-faq .faq-cover__lead h1 {
  margin: 10px 0 0;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--paper);
}

.page-faq .faq-cover__lead .lede {
  margin-top: 16px;
  max-width: 34em;
  color: var(--body-soft);
}

.page-faq .faq-cover__stat {
  position: relative;
  border: 2px solid var(--rock);
  border-left: 6px solid var(--orange);
  background: var(--ink-2);
  box-shadow: var(--faq-shadow);
  padding: 18px 20px 20px;
}

.page-faq .faq-cover__statlabel {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-cover__stat .display {
  display: block;
  margin: 8px 0 10px;
  font-family: var(--mono);
  line-height: 0.9;
  color: var(--orange);
}

.page-faq .faq-cover__statnote {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-quick a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--rock);
  background: rgba(18, 38, 63, 0.7);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--cyan);
  color: var(--paper);
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-head {
  max-width: 62ch;
}

.page-faq .faq-head h2 {
  margin: 10px 0 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-head .prose {
  margin: 0;
  color: var(--body-soft);
}

/* ---------- 十二栏目索引 ---------- */
.page-faq .faq-guides__media {
  margin: var(--faq-gap) 0 0;
}

.page-faq .guide-index {
  list-style: none;
  margin: var(--faq-gap) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rock);
  border: 2px solid var(--rock);
  box-shadow: var(--faq-shadow);
}

.page-faq .guide-index__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 12px;
  align-items: baseline;
  background: var(--ink-2);
  padding: 15px 16px;
  transition: background var(--dur) var(--ease);
}

.page-faq .guide-index__item:hover {
  background: var(--ink-3);
}

.page-faq .guide-index__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .guide-index__name {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .guide-index__desc {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 问答区 ---------- */
.page-faq .faq-seg {
  margin-top: var(--faq-gap);
}

.page-faq .faq-seg .seg__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .seg__btn {
  appearance: none;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--rock);
  background: var(--ink-2);
  color: var(--body-soft);
  font: inherit;
  font-size: 14px;
  letter-spacing: 0.01em;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .seg__btn .mono {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .seg__btn:hover {
  border-color: var(--cyan);
  transform: translate(-2px, -2px);
}

.page-faq .seg__btn[aria-selected="true"] {
  border-color: var(--orange);
  background: var(--ink-3);
  color: var(--paper);
  box-shadow: inset 5px 0 0 var(--orange), 4px 4px 0 rgba(0, 0, 0, 0.45);
}

.page-faq .seg__btn[aria-selected="true"] .mono {
  color: var(--orange);
}

.page-faq .seg__panel {
  display: block;
}

.page-faq .seg__panel[hidden] {
  display: none;
}

.page-faq .faq-qa__media {
  margin: 0 0 18px;
}

/* 手风琴 */
.page-faq .qa-item {
  border: 2px solid var(--rock);
  background: var(--ink-2);
  margin-bottom: 10px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .qa-item:hover {
  border-color: var(--mist);
}

.page-faq .qa-item[open] {
  border-color: var(--cyan);
}

.page-faq .qa-item__q {
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
}

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

.page-faq .qa-item__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .qa-item__text {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .qa-item__sign {
  position: relative;
  width: 12px;
  height: 12px;
  flex: none;
}

.page-faq .qa-item__sign::before,
.page-faq .qa-item__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .qa-item__sign::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 2px;
}

.page-faq .qa-item__sign::after {
  left: 5px;
  top: 0;
  width: 2px;
  height: 12px;
}

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

.page-faq .qa-item__a {
  padding: 0 16px 16px;
  border-top: 1px solid var(--rock);
}

.page-faq .qa-item__a p {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--body-soft);
}

.page-faq .qa-item__more {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-faq .qa-item__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.4);
}

.page-faq .qa-item__more a:hover,
.page-faq .qa-item__more a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .qa-steps {
  counter-reset: qs;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .qa-steps li {
  counter-increment: qs;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body-soft);
}

.page-faq .qa-steps li::before {
  content: counter(qs, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 4px;
}

/* 状态点（页面内覆盖，限定作用域） */
.page-faq .status--info .status__dot {
  background: var(--cyan);
}

.page-faq .status--warn .status__dot {
  background: var(--gold);
}

.page-faq .status--clay .status__dot {
  background: var(--clay);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-support__main h2 {
  margin: 10px 0 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-support__main .prose {
  margin: 0 0 18px;
  color: var(--body-soft);
}

.page-faq .support-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rock);
  border: 2px solid var(--rock);
}

.page-faq .support-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  background: var(--ink);
  padding: 13px 15px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body-soft);
}

.page-faq .support-list__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-support__aside h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-support__aside p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-soft);
}

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

.page-faq .faq-support__aside a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.4);
}

/* ---------- 响应式 ---------- */
@media (max-width: 899px) {
  .page-faq .faq-seg .seg__list {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    margin-bottom: 14px;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .seg__btn {
    width: auto;
    flex: 0 0 auto;
  }
}

@media (min-width: 640px) {
  .page-faq .guide-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-cover__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-seg {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-seg .seg__list {
    margin-bottom: 0;
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
  }
}

@media (min-width: 1080px) {
  .page-faq .guide-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick a,
  .page-faq .seg__btn,
  .page-faq .qa-item,
  .page-faq .qa-item__sign::before,
  .page-faq .qa-item__sign::after {
    transition: none;
  }

  .page-faq .faq-quick a:hover,
  .page-faq .seg__btn:hover {
    transform: none;
  }
}