.page-faq {
  --faq-rail-w: 232px;
  background: var(--ink);
  color: var(--paper);
}

.page-faq a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 26px) 0 46px;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(31, 78, 95, 0.55) 0%, rgba(11, 18, 25, 0) 62%),
    radial-gradient(90% 70% at 100% 10%, rgba(245, 166, 35, 0.14) 0%, rgba(11, 18, 25, 0) 58%),
    linear-gradient(180deg, var(--ink) 0%, #0d1825 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168, 178, 193, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 178, 193, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 88%);
  pointer-events: none;
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 20px;
}

.page-faq .faq-hero .eyebrow {
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(30px, 6.2vw, 54px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 10px 0 18px;
  max-width: 20ch;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  max-width: 62ch;
  color: var(--silver);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(19, 38, 61, 0.7);
  color: var(--silver);
  font-family: var(--font-head);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
  outline: none;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: 34px 0 80px;
}

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

.page-faq .faq-rail {
  margin-bottom: 30px;
}

.page-faq .faq-rail__title {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 14px;
  border: 2px solid var(--line);
  background: var(--navy);
  color: var(--silver);
  font-family: var(--font-head);
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-faq .faq-rail__list a i {
  font-style: normal;
  font-size: 11px;
  color: var(--celadon);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  border-color: var(--gold);
  color: var(--paper);
  transform: translateY(-2px);
  outline: none;
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  border-top: 1px solid var(--line);
  padding-top: 34px;
  margin-bottom: 52px;
}

.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 20px;
}

.page-faq .faq-block__no {
  flex: none;
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.12em;
  padding-top: 4px;
}

.page-faq .faq-block__title {
  font-family: var(--font-head);
  font-size: clamp(21px, 3.4vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--paper);
}

.page-faq .faq-figure {
  margin: 0 0 26px;
  border: 2px solid var(--slate);
  background: linear-gradient(150deg, var(--navy), var(--ink));
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 800 / 500;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  color: var(--silver);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item {
  border: 2px solid var(--line);
  border-top: 0;
  background: linear-gradient(155deg, rgba(19, 38, 61, 0.92), rgba(11, 18, 25, 0.94));
  transition: border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-faq .faq-item:first-child {
  border-top: 2px solid var(--line);
  margin-top: 18px;
}

.page-faq .faq-item + .faq-item {
  margin-top: 12px;
}

.page-faq .faq-item:hover {
  border-color: rgba(245, 166, 35, 0.45);
}

.page-faq .faq-item[open] {
  border-color: rgba(245, 166, 35, 0.7);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 16px 16px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
}

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

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

.page-faq .faq-item__no {
  flex: none;
  color: var(--gold);
  font-size: 12.5px;
  padding-top: 3px;
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
}

.page-faq .faq-item__mark {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark {
  transform: rotate(45deg);
  border-color: var(--gold);
}

.page-faq .faq-item__a {
  padding: 0 18px 20px 18px;
  border-top: 1px solid var(--line-soft);
  margin-top: -1px;
  padding-top: 14px;
  color: var(--silver);
  font-family: var(--font-body);
  font-size: 14.8px;
  line-height: 1.95;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 70ch;
}

.page-faq .faq-item__a a {
  color: var(--gold-lt);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--gold);
}

/* ---------- 联系渠道 ---------- */
.page-faq .faq-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin: 30px 0 0;
  border: 2px solid var(--slate);
  background: linear-gradient(120deg, rgba(31, 78, 95, 0.5), rgba(11, 18, 25, 0.9));
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-channel {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-channel:last-child {
  border-bottom: 0;
}

.page-faq .faq-channel dt {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--celadon);
  margin-bottom: 6px;
}

.page-faq .faq-channel dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-channel dd.mono {
  color: var(--gold-lt);
}

/* ---------- 结尾行动 ---------- */
.page-faq .faq-cta {
  margin-top: 34px;
  padding: 24px 20px;
  border-left: 4px solid var(--gold);
  background: rgba(245, 166, 35, 0.07);
}

.page-faq .faq-cta p {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-channel:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .page-faq .faq-channel:nth-child(odd) {
    border-right: 1px solid var(--line-soft);
  }

  .page-faq .faq-item__a {
    padding-left: 55px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 42px) 0 62px;
  }

  .page-faq .faq-body {
    padding: 56px 0 100px;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 22px);
    margin-bottom: 0;
    padding-right: 4px;
    border-right: 1px solid var(--line-soft);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list a {
    justify-content: space-between;
    white-space: normal;
    width: 100%;
    border-width: 1px;
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    transform: translateX(3px);
  }

  .page-faq .faq-block {
    padding-top: 40px;
    margin-bottom: 68px;
  }

  .page-faq .faq-item__q {
    font-size: 16.5px;
    padding: 19px 20px 19px 22px;
  }

  .page-faq .faq-item__a {
    padding: 16px 26px 24px 58px;
    font-size: 15.2px;
  }

  .page-faq .faq-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: 26px 28px;
  }

  .page-faq .faq-cta p {
    margin: 0;
    max-width: 46ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-rail__list a,
  .page-faq .faq-item,
  .page-faq .faq-item__mark {
    transition: none;
  }
}