.page-faq {
  --faq-tab-hint: rgba(242, 233, 220, .58);
  --faq-tab-idle: rgba(242, 233, 220, .74);
  padding-bottom: clamp(40px, 7vw, 96px);
}

/* ---------- 封面 ---------- */
.page-faq .faq-hero {
  padding: clamp(18px, 3vw, 40px) 0 0;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-size: clamp(30px, 6.2vw, 74px);
  font-weight: 250;
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--ink);
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: 17.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.page-faq .faq-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
  color: var(--ink-soft);
}

.page-faq .faq-chip .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--track);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--rule);
  background: var(--paper);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 34px));
}

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

/* ---------- 主体区 ---------- */
.page-faq .faq-main {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-faq .faq-main__head {
  display: grid;
  gap: 10px;
  max-width: 760px;
  padding-top: 18px;
  border-top: 1px solid var(--ink);
  margin-bottom: clamp(26px, 3.4vw, 44px);
}

.page-faq .faq-main__head h2 {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 300;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-main__head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 标签 + 面板 ---------- */
.page-faq .faq-tabs {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-tabs__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--ink);
  border: 1px solid var(--ink);
}

.page-faq .faq-tab {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  width: 100%;
  padding: 15px 18px 15px 22px;
  border: 0;
  border-left: 3px solid transparent;
  background: transparent;
  color: var(--faq-tab-idle);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: color .25s var(--ease), background-color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-tab + .faq-tab {
  border-top: 1px solid rgba(242, 233, 220, .16);
}

.page-faq .faq-tab:hover {
  color: var(--paper);
  background: rgba(74, 46, 122, .42);
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--paper);
  border-left-color: var(--timer);
  background: linear-gradient(90deg, rgba(15, 138, 107, .5), rgba(36, 26, 70, 0));
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--timer);
  outline-offset: -2px;
}

.page-faq .faq-tab__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--timer);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-tab__label {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
}

.page-faq .faq-tab__hint {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--faq-tab-hint);
}

.page-faq .faq-tabs__panels {
  min-width: 0;
}

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

.page-faq .faq-panel + .faq-panel {
  margin-top: 40px;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--rule);
}

.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 6px;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s var(--ease);
}

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

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

.page-faq .faq-q:hover {
  background: rgba(15, 138, 107, .07);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--jade);
  outline-offset: -2px;
}

.page-faq .faq-q__mark {
  position: relative;
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  margin-top: 5px;
  border: 1px solid var(--jade);
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-q__mark::before {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  top: calc(50% - 1px);
  height: 2px;
  background: var(--jade-deep);
}

.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: calc(50% - 1px);
  width: 2px;
  background: var(--jade-deep);
  transition: opacity .2s var(--ease);
}

.page-faq details[open] .faq-q__mark {
  background: var(--jade);
  border-color: var(--jade-deep);
}

.page-faq details[open] .faq-q__mark::before,
.page-faq details[open] .faq-q__mark::after {
  background: var(--paper);
}

.page-faq details[open] .faq-q__mark::after {
  opacity: 0;
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-a {
  display: none;
  padding: 0 6px 20px 33px;
}

.page-faq details[open] > .faq-a {
  display: block;
  animation: faq-open .28s var(--ease);
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-a p {
  margin: 0 0 12px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
}

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

.page-faq .faq-a .btn {
  margin-top: 6px;
}

.page-faq .faq-k {
  font-family: var(--font-mono);
  font-size: .93em;
  color: var(--jade-deep);
  border-bottom: 1px solid var(--jade);
  padding-bottom: 1px;
}

/* ---------- 回看分区里的图 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 28px;
}

.page-faq .faq-split__figure {
  margin: 0;
  border: 1px solid var(--rule);
  background: var(--paper);
}

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

.page-faq .faq-split__figure .figure__cap {
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
  border-top: 1px solid var(--rule);
}

/* ---------- 求助区 ---------- */
.page-faq .faq-help {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--ink);
}

.page-faq .faq-help__copy h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 2.8vw, 34px);
  font-weight: 300;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-help__copy p {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-help__copy .btn {
  margin-top: 22px;
}

.page-faq .faq-help__more {
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-help__more a {
  color: var(--jade-deep);
  border-bottom: 1px solid var(--jade);
  text-decoration: none;
}

.page-faq .faq-help__more a:hover {
  color: var(--track);
  border-bottom-color: var(--track);
}

.page-faq .faq-help__side {
  padding: 26px 24px 28px;
  background: linear-gradient(158deg, var(--night), var(--glow));
  color: var(--paper);
  border-left: 4px solid var(--track);
}

.page-faq .faq-help__side h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: .02em;
}

.page-faq .faq-help__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(242, 233, 220, .84);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 1px;
  background: var(--timer);
}

.page-faq .faq-help__contacts {
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help__contacts div {
  display: grid;
  gap: 3px;
}

.page-faq .faq-help__contacts dt {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: rgba(242, 233, 220, .6);
}

.page-faq .faq-help__contacts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-help__note {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(242, 233, 220, .22);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 233, 220, .62);
}

/* ---------- 响应式 ---------- */
@media (max-width: 899px) {
  .page-faq .faq-tabs__list {
    flex-direction: row;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .page-faq .faq-tab {
    flex: 0 0 auto;
    width: auto;
    min-width: 132px;
    padding: 12px 16px;
    border-left: 0;
    border-bottom: 3px solid transparent;
  }

  .page-faq .faq-tab + .faq-tab {
    border-top: 0;
    border-left: 1px solid rgba(242, 233, 220, .16);
  }

  .page-faq .faq-tab[aria-selected="true"] {
    border-left-color: transparent;
    border-bottom-color: var(--timer);
    background: rgba(15, 138, 107, .34);
  }

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

  .page-faq .faq-a {
    padding-left: 6px;
  }
}

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

  .page-faq .faq-tabs {
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 5vw, 76px);
  }

  .page-faq .faq-tabs__list {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    gap: clamp(32px, 4vw, 52px);
    align-items: start;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-q,
  .page-faq .faq-q__mark,
  .page-faq .faq-q__mark::after {
    transition: none;
  }

  .page-faq details[open] > .faq-a {
    animation: none;
  }
}