.page-faq {
  position: relative;
  background: var(--mb-night);
  color: var(--mb-ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--mb-head) + clamp(26px, 5vw, 56px)) 0 clamp(30px, 5vw, 54px);
  border-bottom: 2px solid var(--mb-line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(30, 58, 85, .55) 1px, transparent 1px),
    linear-gradient(180deg, rgba(30, 58, 85, .55) 1px, transparent 1px);
  background-size: 88px 88px;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero > .mb-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .mb-h1 {
  max-width: 18ch;
  margin: 0 0 18px;
}

.page-faq .faq-hero .mb-lede {
  max-width: 60ch;
  margin: 0;
}

/* ---------- 场景入口 ---------- */
.page-faq .faq-scenes {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-scenes__label {
  display: block;
  font-family: var(--mb-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--mb-mist);
  margin-bottom: 10px;
}

.page-faq .faq-scenes__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  padding: 2px;
  margin: 0;
  list-style: none;
  background: var(--mb-line);
  border: 2px solid var(--mb-line);
  box-shadow: 6px 6px 0 var(--mb-shadow);
}

.page-faq .faq-scene {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 12px;
  background: var(--mb-panel);
  color: var(--mb-ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .01em;
  transition: background .16s var(--mb-ease), color .16s var(--mb-ease);
}

.page-faq .faq-scene__no {
  font-family: var(--mb-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--mb-cyan);
  transition: color .16s var(--mb-ease);
}

.page-faq .faq-scene:hover,
.page-faq .faq-scene:focus-visible {
  background: var(--mb-lime);
  color: var(--mb-night);
  outline: none;
}

.page-faq .faq-scene:hover .faq-scene__no,
.page-faq .faq-scene:focus-visible .faq-scene__no {
  color: var(--mb-night);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: clamp(44px, 6vw, 76px) 0;
  scroll-margin-top: calc(var(--mb-head) + 28px);
}

.page-faq .faq-group + .faq-group {
  border-top: 2px dashed var(--mb-line);
}

.page-faq .faq-group__head {
  max-width: 78ch;
}

.page-faq .faq-group__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
}

.page-faq .faq-group__no {
  font-family: var(--mb-mono);
  font-size: clamp(30px, 4.4vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--mb-lime);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__ticks {
  display: flex;
  gap: 4px;
}

.page-faq .faq-group__ticks i {
  display: block;
  width: 16px;
  height: 4px;
  background: var(--mb-violet);
}

.page-faq .faq-group__count {
  font-family: var(--mb-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mb-mist);
}

.page-faq .faq-group__intro {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mb-mist);
}

.page-faq .faq-group__head--split {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 2px solid var(--mb-line);
  background: var(--mb-panel);
  box-shadow: 6px 6px 0 var(--mb-shadow);
  overflow: hidden;
}

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

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  margin-top: clamp(24px, 3.5vw, 40px);
  border: 2px solid var(--mb-line);
  background: var(--mb-panel);
  box-shadow: 6px 6px 0 var(--mb-shadow);
}

.page-faq .faq-item {
  border-bottom: 2px solid var(--mb-line);
  transition: background .18s var(--mb-ease), box-shadow .18s var(--mb-ease);
}

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

.page-faq .faq-item[open] {
  background: var(--mb-night-2);
  box-shadow: inset 4px 0 0 var(--mb-lime);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px clamp(16px, 2.6vw, 26px);
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--mb-ink);
}

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

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--mb-mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--mb-cyan);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2212";
  color: var(--mb-lime);
}

.page-faq .faq-item__a {
  padding: 0 clamp(16px, 2.6vw, 26px) 22px;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mb-mist);
}

/* ---------- 订阅切换 ---------- */
.page-faq .faq-subscribe-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(24px, 3.5vw, 36px);
}

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

.page-faq .faq-switch__list {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 2px;
  width: fit-content;
  background: var(--mb-line);
  border: 2px solid var(--mb-line);
}

.page-faq .faq-switch__tab {
  appearance: none;
  border: 0;
  margin: 0;
  padding: 11px 22px;
  background: var(--mb-panel);
  color: var(--mb-mist);
  font-family: var(--mb-font);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background .16s var(--mb-ease), color .16s var(--mb-ease);
}

.page-faq .faq-switch__tab[aria-selected="true"] {
  background: var(--mb-lime);
  color: var(--mb-night);
}

.page-faq .faq-switch__panel {
  padding: clamp(18px, 3vw, 26px);
  border: 2px solid var(--mb-line);
  border-top: 0;
  background: var(--mb-panel);
}

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

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .faq-steps__no {
  font-family: var(--mb-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--mb-violet);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-steps__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mb-mist);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(24px, 3.5vw, 36px);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 2px solid var(--mb-line);
  background: var(--mb-panel);
  box-shadow: 6px 6px 0 var(--mb-shadow);
}

.page-faq .faq-support__row {
  display: grid;
  gap: 6px;
  padding: 18px clamp(16px, 2.6vw, 26px);
  border-bottom: 2px solid var(--mb-line);
}

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

.page-faq .faq-support__label {
  font-family: var(--mb-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mb-mist);
}

.page-faq .faq-support__value {
  font-family: var(--mb-mono);
  font-size: clamp(15px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--mb-ink);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-faq .faq-support__aside {
  padding: clamp(20px, 3vw, 28px);
  border: 2px solid var(--mb-line);
  background: var(--mb-night-2);
  box-shadow: 6px 6px 0 var(--mb-shadow);
}

.page-faq .faq-support__aside p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mb-mist);
}

/* ---------- 底部入口 ---------- */
.page-faq .faq-next {
  padding: clamp(44px, 6vw, 76px) 0 clamp(56px, 8vw, 96px);
  border-top: 2px dashed var(--mb-line);
}

.page-faq .faq-next__intro {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mb-mist);
}

.page-faq .faq-next__grid {
  display: grid;
  gap: 2px;
  padding: 2px;
  margin-top: clamp(22px, 3vw, 34px);
  background: var(--mb-line);
  border: 2px solid var(--mb-line);
  box-shadow: 6px 6px 0 var(--mb-shadow);
}

.page-faq .faq-next__card {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px);
  background: var(--mb-panel);
  color: var(--mb-ink);
  text-decoration: none;
  transition: background .16s var(--mb-ease), color .16s var(--mb-ease);
}

.page-faq .faq-next__kicker {
  font-family: var(--mb-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mb-cyan);
  transition: color .16s var(--mb-ease);
}

.page-faq .faq-next__title {
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.4;
}

.page-faq .faq-next__go {
  font-family: var(--mb-mono);
  font-size: 13px;
  color: var(--mb-mist);
  transition: color .16s var(--mb-ease);
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  background: var(--mb-lime);
  color: var(--mb-night);
  outline: none;
}

.page-faq .faq-next__card:hover .faq-next__kicker,
.page-faq .faq-next__card:hover .faq-next__go,
.page-faq .faq-next__card:focus-visible .faq-next__kicker,
.page-faq .faq-next__card:focus-visible .faq-next__go {
  color: var(--mb-night);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-scenes__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-support__row {
    grid-template-columns: minmax(120px, 160px) minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-group__head--split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-figure img {
    aspect-ratio: 16 / 11;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-subscribe-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero .mb-h1 {
    max-width: 20ch;
  }
}
<<<END>>>