.page-faq {
  --faq-line: rgba(20, 18, 15, .13);
  --faq-line-soft: rgba(246, 241, 231, .16);
  --faq-ink-soft: #4E4842;
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  padding: 20px 0 38px;
  background:
    radial-gradient(120% 92% at 86% -12%, rgba(201, 162, 39, .26), transparent 58%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clay) 0%, var(--gold) 42%, rgba(201, 162, 39, 0) 94%);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 26px;
  margin-top: 18px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--brown-gold);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-size: clamp(46px, 13.5vw, 104px);
  font-weight: 900;
  letter-spacing: -.035em;
  line-height: .94;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.88;
  color: var(--faq-ink-soft);
}

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

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  background: var(--rock);
  object-fit: cover;
  box-shadow:
    0 0 0 1px rgba(201, 162, 39, .48),
    0 0 34px -12px rgba(201, 162, 39, .55),
    var(--shadow-soft);
}

/* ============ 分类切换区 ============ */
.page-faq .faq-switch {
  padding: 34px 0 0;
}

.page-faq .faq-switch__title {
  margin: 0 0 16px;
  font-size: clamp(20px, 5vw, 27px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.2;
}

.page-faq .faq-tabs__bar {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  border-bottom: 1px solid var(--faq-line);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .tabs__btn {
  position: relative;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 13px 15px 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--faq-ink-soft);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-tab-num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-faq .tabs__btn:hover {
  color: var(--ink);
}

.page-faq .tabs__btn[aria-selected="true"] {
  color: var(--vermilion);
  border-bottom-color: var(--vermilion);
}

.page-faq .tabs__btn[aria-selected="true"] .faq-tab-num {
  color: var(--vermilion);
}

.page-faq .tabs__btn:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: -3px;
  border-radius: 3px;
}

.page-faq .faq-tabs__panels {
  padding-top: 4px;
}

.page-faq .tabs__panel {
  padding: 4px 0 0;
}

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

/* ============ 问答条目 ============ */
.page-faq .faq-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-list > li {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-list > li:first-child {
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-q > summary {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 16px;
  gap: 12px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-q__num {
  padding-top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-faq .faq-q__title {
  margin: 0;
  font-size: clamp(16.5px, 4.6vw, 21px);
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-faq .faq-q__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 8px;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform .28s var(--ease), background-color .2s var(--ease);
}

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

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

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

.page-faq .faq-q[open] .faq-q__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-q__body {
  padding: 0 0 22px 40px;
}

.page-faq .faq-q__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.88;
  color: var(--faq-ink-soft);
}

.page-faq .faq-q__body a {
  color: var(--volt);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ============ 兑换流程示意图 ============ */
.page-faq .faq-flow {
  margin: 26px 0 8px;
  padding: 0;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--rock);
}

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

.page-faq .faq-flow__cap {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid rgba(201, 162, 39, .3);
  background: rgba(20, 18, 15, .35);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold-pale);
}

/* ============ 人工协助 ============ */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  margin-top: 56px;
  padding: 50px 0 56px;
  background: var(--rock);
  color: var(--paper);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 64%;
  height: 180%;
  background: linear-gradient(120deg, rgba(201, 162, 39, .22), rgba(183, 51, 42, .13) 52%, rgba(20, 18, 15, 0) 80%);
  transform: rotate(16deg);
  pointer-events: none;
}

.page-faq .faq-help__inner {
  position: relative;
  display: grid;
  gap: 32px;
}

.page-faq .faq-help__eyebrow {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-size: clamp(26px, 6.6vw, 42px);
  font-weight: 900;
  letter-spacing: -.025em;
  line-height: 1.12;
  color: #FBF7EE;
}

.page-faq .faq-help__text {
  margin: 0 0 24px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.88;
  color: rgba(246, 241, 231, .78);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-help__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-help__item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-help__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--gold-pale);
}

.page-faq .faq-help__v {
  font-size: 15px;
  line-height: 1.72;
  color: #F3EDE1;
  overflow-wrap: anywhere;
}

/* ============ 响应式 ============ */
@media (min-width: 560px) {
  .page-faq .faq-help__item {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-faq .faq-q > summary {
    grid-template-columns: 34px minmax(0, 1fr) 16px;
    gap: 16px;
    padding: 22px 0;
  }

  .page-faq .faq-q__body {
    padding-left: 50px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 26px 0 52px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, .84fr);
    align-items: end;
    gap: 56px;
    margin-top: 26px;
  }

  .page-faq .faq-hero__lead {
    font-size: 17px;
  }

  .page-faq .faq-switch {
    padding-top: 46px;
  }

  .page-faq .tabs__btn {
    font-size: 16px;
    padding: 15px 22px 16px;
  }

  .page-faq .faq-flow {
    margin-top: 30px;
  }

  .page-faq .faq-help {
    margin-top: 72px;
    padding: 66px 0 74px;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: 68px;
    align-items: start;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero {
    padding-top: 14px;
  }

  .page-faq .faq-q__body {
    padding-left: 0;
  }

  .page-faq .faq-help {
    margin-top: 44px;
    padding: 40px 0 46px;
  }
}

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