.page-faq {
  padding-bottom: var(--gutter);
  color: var(--white);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: calc(var(--gutter) * 0.75);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--gutter) * 0.9) 0 calc(var(--gutter) * 1.1);
  border-bottom: var(--bw) solid var(--scale);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -55% 48%;
  height: 240px;
  background: var(--grad-jump);
  opacity: 0.22;
  transform: rotate(-3.5deg);
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-hero__title {
  margin: 0.45em 0 0.5em;
  max-width: 15ch;
  font-size: clamp(2.5rem, 7.4vw, 5.25rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  max-width: var(--content);
  margin: 0 0 1.9rem;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--mute);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem 2.4rem;
  margin: 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--scale);
}

.page-faq .faq-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-faq .faq-hero__num {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 700;
  color: var(--green);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__meta-label {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--mute);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--gap) * 1.6);
  padding-top: calc(var(--gutter) * 0.9);
}

/* ---------- 分类导览 ---------- */
.page-faq .faq-map__head {
  margin-bottom: 1.6rem;
}

.page-faq .faq-map__head .section__lead {
  color: var(--mute);
}

.page-faq .faq-map__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.9rem;
}

@media (min-width: 560px) {
  .page-faq .faq-map__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-map__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-faq .faq-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
  padding: 1.15rem 1.05rem 1rem 1.15rem;
  border: var(--bw) solid var(--scale);
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease),
    box-shadow 220ms var(--ease);
}

.page-faq .faq-tile::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 240ms var(--ease);
}

.page-faq .faq-tile:hover,
.page-faq .faq-tile:focus-visible {
  border-color: var(--cyan);
  transform: translate(-2px, -3px);
  box-shadow: 8px 8px 0 rgba(0, 224, 208, 0.16);
}

.page-faq .faq-tile:hover::before,
.page-faq .faq-tile:focus-visible::before {
  transform: scaleY(1);
}

.page-faq .faq-tile__num {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-tile__name {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-tile__desc {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--mute);
}

.page-faq .faq-tile__count {
  margin-top: auto;
  padding-top: 0.7rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--green);
}

/* ---------- 分类章节头 ---------- */
.page-faq .faq-cat {
  margin-top: calc(var(--gutter) * 1.35);
  padding-top: calc(var(--gutter) * 0.75);
  border-top: 1px solid var(--scale);
  scroll-margin-top: 6rem;
}

.page-faq .faq-cat:first-of-type {
  margin-top: 0;
}

.page-faq .faq-cat__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.5rem 1.2rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .page-faq .faq-cat__head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }
}

.page-faq .faq-cat__head .section__num {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px var(--scale);
}

.page-faq .faq-cat__text {
  max-width: var(--content);
}

.page-faq .faq-cat__text .section__title {
  margin: 0 0 0.45rem;
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-faq .faq-cat__lede {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 1.6rem;
  border: var(--bw) solid var(--scale);
  background: var(--panel);
}

.page-faq .faq-figure .figure__media {
  overflow: hidden;
}

.page-faq .faq-figure--search .figure__media {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure--night .figure__media {
  aspect-ratio: 2 / 1;
}

.page-faq .faq-figure .figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-faq .faq-figure .figure__caption {
  padding: 0.7rem 1rem 0.8rem;
  border-top: 1px solid var(--scale);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-faq .faq-item {
  border: var(--bw) solid var(--scale);
  border-left-width: 5px;
  background: var(--panel);
  scroll-margin-top: 6.5rem;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--cyan);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  box-shadow: 7px 7px 0 rgba(6, 26, 46, 0.85);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 1rem 1.05rem;
  cursor: pointer;
  list-style: none;
  color: var(--white);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--cyan);
  transition: transform 220ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2212";
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .faq-item__idx {
  flex: none;
  min-width: 2.3rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

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

.page-faq .faq-item__a {
  padding: 0 1.05rem 1.15rem calc(1.05rem + 2.3rem + 0.8rem);
  border-top: 1px solid var(--scale);
  padding-top: 0.85rem;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: var(--content);
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--mute);
}

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

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

@media (max-width: 520px) {
  .page-faq .faq-item__a {
    padding-left: 1.05rem;
  }
}

/* ---------- 尾部指引 ---------- */
.page-faq .faq-tail {
  margin-top: calc(var(--gutter) * 1.2);
  padding: 1.2rem 1.25rem;
  border: var(--bw) solid var(--scale);
  border-left: 5px solid var(--green);
  background: var(--panel);
}

.page-faq .faq-tail__text {
  margin: 0;
  max-width: var(--content);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .faq-tail__text a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-tail__text a:hover {
  color: var(--green);
}

/* ---------- 右侧索引 ---------- */
.page-faq .faq-aside {
  order: 2;
}

.page-faq .faq-index {
  border: var(--bw) solid var(--scale);
  background: var(--ink);
  padding: 1.1rem 1.1rem 1.2rem;
}

.page-faq .faq-index__title {
  margin: 0 0 0.9rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--scale);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-index__list,
.page-faq .faq-index__sub {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__group + .faq-index__group {
  margin-top: 0.75rem;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.28rem 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-index__n {
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--green);
}

.page-faq .faq-index__sub {
  margin-top: 0.25rem;
  padding-left: 1.55rem;
  border-left: 1px solid var(--scale);
}

.page-faq .faq-index__sublink {
  display: block;
  padding: 0.2rem 0;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--mute);
  text-decoration: none;
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-index a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 宽屏：锁定索引 ---------- */
@media (min-width: 1080px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 252px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 5rem;
    order: 0;
    max-height: calc(100vh - 7rem);
    overflow-y: auto;
    padding-right: 0.25rem;
  }

  .page-faq .faq-aside::-webkit-scrollbar {
    width: 6px;
  }

  .page-faq .faq-aside::-webkit-scrollbar-thumb {
    background: var(--scale);
  }
}

@media (max-width: 1079px) {
  .page-faq .faq-aside {
    margin-top: calc(var(--gutter) * 0.6);
  }

  .page-faq .faq-index__sub {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem 1rem;
    border-left: 0;
    padding-left: 0;
  }
}

/* ---------- 降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tile,
  .page-faq .faq-item,
  .page-faq .faq-tile::before,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-tile:hover,
  .page-faq .faq-tile:focus-visible {
    transform: none;
  }
}
<<<END>>>