.page-faq {
  --faq-line-soft: rgba(20, 22, 26, .07);
  --faq-wine-wash: rgba(107, 18, 32, .05);
  color: var(--ink);
  background: var(--paper);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 0;
  background: var(--paper);
  border-bottom: 1px solid var(--paper-2);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--faq-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-line-soft) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .9), transparent 76%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .9), transparent 76%);
  pointer-events: none;
}

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

.page-faq .faq-hero__title {
  margin: 22px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 9vw, 82px);
  line-height: 1.02;
  letter-spacing: -.015em;
  color: var(--ink);
  text-wrap: balance;
}

.page-faq .faq-hero__kicker {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .3em;
  color: var(--wine);
}

.page-faq .faq-hero__lede {
  max-width: 66ch;
  margin: 22px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--paper-2);
}

.page-faq .faq-hero__stats li {
  padding: 16px 14px 18px 0;
  border-bottom: 1px solid var(--paper-2);
}

.page-faq .faq-hero__stats li:nth-child(even) {
  padding-left: 16px;
  border-left: 1px solid var(--paper-2);
}

.page-faq .faq-hero__stat-num {
  display: block;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--wine);
}

.page-faq .faq-hero__stat-lbl {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: .05em;
  color: var(--idx);
}

/* ---------- 主体网格 ---------- */

.page-faq .faq-main {
  padding: 40px 0 8px;
  background: var(--paper);
}

.page-faq .faq-main__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

/* ---------- 分类索引 ---------- */

.page-faq .faq-index__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list li {
  border-top: 1px solid var(--paper-2);
}

.page-faq .faq-index__list li:last-child {
  border-bottom: 1px solid var(--paper-2);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 2px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  padding-left: 8px;
  color: var(--wine);
  background: var(--faq-wine-wash);
}

.page-faq .faq-index__num {
  flex: none;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--wine);
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  padding-bottom: 30px;
  border-bottom: 1px solid var(--paper-2);
  scroll-margin-top: 88px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-faq .faq-group__num {
  flex: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--wine);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 4.2vw, 29px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__intro {
  max-width: 60ch;
  margin: 10px 0 0 26px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--idx);
}

.page-faq .faq-group__items {
  margin-top: 18px;
  border-top: 1px solid var(--paper-2);
}

/* ---------- 可展开条目 ---------- */

.page-faq .faq-item {
  border-bottom: 1px solid var(--paper-2);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 4px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

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

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

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
  margin-top: 7px;
  color: var(--wine);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 50%;
  width: 100%;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-faq .faq-item__mark::after {
  left: 50%;
  top: 0;
  width: 1.5px;
  height: 100%;
  transform: translateX(-50%);
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 2px 4px 20px 30px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
}

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

.page-faq .faq-item__more {
  font-size: 14px;
}

.page-faq .faq-item__more a {
  color: var(--wine);
  text-decoration: none;
  border-bottom: 1px solid var(--wine-2);
  padding-bottom: 1px;
  transition: color .2s var(--ease);
}

.page-faq .faq-item__more a:hover,
.page-faq .faq-item__more a:focus-visible {
  color: var(--wine-2);
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: 20px 0 4px;
}

/* ---------- 深色收束带 ---------- */

.page-faq .faq-deep {
  position: relative;
  overflow: hidden;
  margin-top: 48px;
  padding: 46px 0 52px;
  background: var(--ink);
  color: var(--on-dark);
}

.page-faq .faq-deep::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--on-dark-line-2) 1px, transparent 1px),
    linear-gradient(to bottom, var(--on-dark-line-2) 1px, transparent 1px);
  background-size: 92px 92px;
  pointer-events: none;
}

.page-faq .faq-deep .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-deep__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 38px;
}

.page-faq .faq-group--dark {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-group--dark + .faq-group--dark {
  margin-top: 0;
}

.page-faq .faq-group--dark .faq-group__num {
  color: var(--cyan);
}

.page-faq .faq-group--dark .faq-group__title {
  color: var(--on-dark);
}

.page-faq .faq-group--dark .faq-group__intro {
  color: var(--on-dark-soft);
}

.page-faq .faq-group--dark .faq-group__items {
  border-top-color: var(--on-dark-line);
}

.page-faq .faq-group--dark .faq-item {
  border-bottom-color: var(--on-dark-line);
}

.page-faq .faq-group--dark .faq-item__q {
  color: var(--on-dark);
}

.page-faq .faq-group--dark .faq-item__q:hover,
.page-faq .faq-group--dark .faq-item__q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-group--dark .faq-item__mark {
  color: var(--cyan);
}

.page-faq .faq-group--dark .faq-item__a {
  color: var(--on-dark-soft);
}

.page-faq .faq-group--dark .faq-item__more a {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-deep__foot {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--on-dark-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--on-dark-soft);
}

.page-faq .faq-deep__foot .num {
  color: var(--amber);
  letter-spacing: .04em;
}

.page-faq .faq-deep__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 1px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero__stats li {
    padding-right: 20px;
  }

  .page-faq .faq-hero__stats li:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .page-faq .faq-hero__stats li + li {
    padding-left: 20px;
    border-left: 1px solid var(--paper-2);
  }

  .page-faq .faq-item__q {
    font-size: 16.5px;
    padding: 17px 4px;
  }

  .page-faq .faq-item__a {
    font-size: 15.5px;
    padding-bottom: 22px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-main {
    padding: 56px 0 12px;
  }

  .page-faq .faq-main__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-group {
    padding-bottom: 34px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 34px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-deep {
    margin-top: 56px;
    padding: 60px 0 66px;
  }

  .page-faq .faq-deep__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-item__q,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-item__more a {
    transition: none;
  }
}
<<<END>>>