.page-faq {
  --faq-rail-w: 236px;
  --faq-answer-text: #2E3B52;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  background: var(--paper);
  padding-top: var(--sp-3);
  padding-bottom: var(--sp-1);
}

.page-faq .breadcrumbs__link {
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--muted);
  text-decoration: none;
}

.page-faq .breadcrumbs__link[aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

.page-faq .breadcrumbs__sep {
  color: var(--sand);
  padding: 0 6px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--paper);
  padding: var(--sp-5) 0 var(--sp-5);
  border-bottom: 1px solid var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: 52%;
  background: linear-gradient(155deg, rgba(240, 166, 43, .22), rgba(240, 166, 43, 0) 62%);
  clip-path: polygon(32% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: var(--sp-3) 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(29px, 7.2vw, 54px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 0 0 var(--sp-4);
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(247, 243, 234, .84);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid rgba(247, 243, 234, .3);
  color: var(--paper);
  font-size: 13px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: background-color 120ms var(--ease), border-color 120ms var(--ease), color 120ms var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--night);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid rgba(247, 243, 234, .22);
  background: var(--panel);
  box-shadow: 14px 14px 0 rgba(5, 8, 15, .5);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.page-faq .faq-hero__label {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: var(--gold);
  color: var(--night);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  background: var(--paper);
  padding: var(--sp-5) 0 var(--sp-6);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  align-items: start;
}

/* ---------- 分类轨道 ---------- */
.page-faq .faq-rail {
  border: 1px solid var(--ink);
  background: var(--white);
  overflow: hidden;
}

.page-faq .faq-rail__cap {
  margin: 0;
  padding: 10px 14px;
  background: var(--night);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-faq .faq-rail__nav {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__link {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 14px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 120ms var(--ease), color 120ms var(--ease);
}

.page-faq .faq-rail__link:last-child {
  border-right: none;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--gold-soft);
  color: var(--ink);
}

.page-faq .faq-rail__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: .06em;
}

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

/* ---------- 分组与折叠板 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 84px;
  margin-bottom: var(--sp-5);
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-top: 12px;
  border-top: 3px solid var(--ink);
  margin-bottom: 10px;
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: .04em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 4.6vw, 28px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__note {
  margin: 0 0 var(--sp-3);
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .qa {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid transparent;
  margin-bottom: 10px;
  transition: background-color 120ms var(--ease), border-color 120ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .qa:hover {
  box-shadow: 0 2px 0 rgba(5, 8, 15, .07);
}

.page-faq .qa[open] {
  background: var(--paper);
  border-left-color: var(--flare);
  box-shadow: 8px 8px 0 rgba(5, 8, 15, .1);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 22px;
  gap: 10px;
  align-items: start;
  padding: 16px 16px 16px 12px;
  cursor: pointer;
  list-style: none;
  transition: background-color 120ms var(--ease);
}

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

.page-faq .qa__q:hover {
  background: rgba(240, 166, 43, .12);
}

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

.page-faq .qa__no {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

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

.page-faq .qa__text {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.62;
  color: var(--ink);
}

.page-faq .qa__sign {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 5px;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--gold);
  transition: transform 180ms var(--ease), opacity 180ms var(--ease), background-color 180ms var(--ease);
}

.page-faq .qa__sign::before {
  width: 14px;
  height: 2px;
}

.page-faq .qa__sign::after {
  width: 2px;
  height: 14px;
}

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

.page-faq .qa[open] .qa__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.page-faq .qa__a {
  padding: 2px 18px 20px 68px;
  animation: faq-answer-in 200ms var(--ease) both;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-answer-text);
}

.page-faq .qa__a .u-link {
  color: var(--flare);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@keyframes faq-answer-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-group__media {
  margin: var(--sp-3) 0 0;
  border: 1px solid var(--ink);
  background: var(--night);
}

.page-faq .faq-group__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-group__media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-light);
  color: var(--gold-soft);
  font-size: 13px;
  letter-spacing: .04em;
}

/* ---------- 底部去向 ---------- */
.page-faq .faq-next {
  background: var(--night);
  color: var(--paper);
  padding: var(--sp-5) 0;
}

.page-faq .faq-next__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  padding: var(--sp-4);
  border: 1px solid rgba(247, 243, 234, .2);
  background: var(--panel);
}

.page-faq .faq-next__title {
  margin: var(--sp-2) 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: clamp(22px, 5vw, 34px);
  font-weight: 800;
  line-height: 1.28;
  color: var(--paper);
}

.page-faq .faq-next__desc {
  margin: 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 243, 234, .78);
}

.page-faq .faq-next__links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-next__link {
  display: block;
  padding: 14px 14px 16px;
  border: 1px solid rgba(247, 243, 234, .22);
  color: var(--paper);
  text-decoration: none;
  transition: background-color 120ms var(--ease), border-color 120ms var(--ease), color 120ms var(--ease);
}

.page-faq .faq-next__link:hover,
.page-faq .faq-next__link:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--night);
}

.page-faq .faq-next__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .faq-next__link:hover .faq-next__no,
.page-faq .faq-next__link:focus-visible .faq-next__no {
  color: var(--night);
}

.page-faq .faq-next__label {
  display: block;
  margin: 6px 0 4px;
  font-size: 16px;
  font-weight: 700;
}

.page-faq .faq-next__hint {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  opacity: .82;
}

.page-faq .faq-totop {
  display: block;
  margin-top: var(--sp-3);
  text-align: right;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold-soft);
  text-decoration: none;
  transition: color 120ms var(--ease);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: var(--sp-6) 0 var(--sp-6);
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: var(--sp-5);
  }

  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr);
    align-items: center;
    padding: var(--sp-5);
  }

  .page-faq .faq-next__links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--sp-5);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--sp-3);
  }

  .page-faq .faq-rail__nav {
    flex-direction: column;
    overflow: visible;
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-rail__link {
    border-right: none;
    border-left: 3px solid var(--sand);
    border-bottom: 1px solid var(--line);
    white-space: normal;
  }

  .page-faq .faq-rail__link:last-child {
    border-bottom: none;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--gold);
  }

  .page-faq .faq-rail__cta {
    display: block;
    margin: 12px;
  }

  .page-faq .qa__q {
    grid-template-columns: 56px minmax(0, 1fr) 22px;
    padding: 18px 20px 18px 16px;
  }

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

  .page-faq .qa__a {
    padding: 2px 24px 24px 84px;
  }

  .page-faq .qa__a p {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__a {
    animation: none;
  }

  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .faq-rail__link,
  .page-faq .faq-hero__jump a,
  .page-faq .faq-next__link {
    transition: none;
  }
}