.page-faq {
  background: var(--paper);
  color: var(--ink);
}

.page-faq .breadcrumbs {
  padding-top: 1.1rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding: clamp(1.4rem, 4vw, 2.6rem) 0 clamp(2rem, 5vw, 3.4rem);
  border-bottom: 3px solid var(--bark);
}

.page-faq .faq-hero__title {
  margin: 0.9rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 8.5vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--bark);
  max-width: 18ch;
  overflow-wrap: break-word;
}

.page-faq .faq-hero__main .lead {
  margin-top: 1.2rem;
  color: var(--ink);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.page-faq .faq-hero__marks {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px dashed var(--line-strong);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-hero__marks span {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.2;
  color: var(--gold);
  letter-spacing: 0;
}

.page-faq .faq-hero__aside .media {
  margin: 0;
}

.page-faq .faq-hero__aside .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.4rem;
  padding: clamp(1.8rem, 4vw, 3rem) 0 3.5rem;
}

.page-faq .faq-rail {
  display: grid;
  gap: 1.4rem;
  align-content: start;
}

/* 书签位 */
.page-faq .rail-bookmark {
  position: relative;
  padding: 1.5rem 1.15rem 1.25rem;
  background: var(--bark);
  color: var(--surface);
  border: 2px solid var(--bark);
  box-shadow: 6px 6px 0 var(--gold);
}

.page-faq .rail-bookmark__pin {
  display: inline-block;
  background: var(--cinnabar);
  color: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  padding: 0.22rem 0.5rem;
  margin-bottom: 0.75rem;
}

.page-faq .rail-bookmark__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.24rem;
  color: var(--gold-pale);
  line-height: 1.3;
}

.page-faq .rail-bookmark__note {
  margin: 0.55rem 0 1rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(244, 239, 229, 0.78);
}

.page-faq .rail-bookmark__btn {
  display: block;
  text-align: center;
}

/* 侧栏索引 */
.page-faq .rail-index__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .rail-index__list {
  list-style: none;
  margin: 0.7rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
}

.page-faq .rail-index__link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.6rem;
  font-size: 0.94rem;
  text-decoration: none;
  color: var(--ink);
  border-left: 3px solid transparent;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .rail-index__link:hover,
.page-faq .rail-index__link:focus-visible {
  border-left-color: var(--cinnabar);
  background: var(--paper-deep);
}

.page-faq .rail-index__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--gold);
}

.page-faq .rail-index__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: clamp(1.8rem, 4vw, 2.8rem);
  min-width: 0;
}

.page-faq .faq-group {
  padding-top: 0.4rem;
}

.page-faq .faq-group__head {
  border-left: 4px solid var(--cinnabar);
  padding-left: 1rem;
  margin-bottom: 1.4rem;
}

.page-faq .faq-group__head h2 {
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 4vw, 2rem);
  line-height: 1.25;
  color: var(--bark);
}

.page-faq .faq-group__lead {
  margin: 0.6rem 0 0;
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--mist);
  max-width: 46ch;
}

.page-faq .faq-group__body--aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.6rem;
  align-items: start;
}

.page-faq .faq-group__fig {
  margin: 0;
}

.page-faq .faq-group__fig .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-list {
  display: grid;
  gap: 0.85rem;
  min-width: 0;
}

/* 折叠卡 */
.page-faq .faq-item {
  background: var(--surface);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--bark);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.95rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .faq-item[open] .faq-item__q {
  background: var(--paper-deep);
  border-bottom: 2px solid var(--bark);
}

.page-faq .faq-item__num {
  flex: none;
  margin-top: 0.12rem;
  padding: 0.14rem 0.4rem;
  background: var(--bark);
  color: var(--gold-pale);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}

.page-faq .faq-item__text {
  min-width: 0;
  overflow-wrap: break-word;
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 0.36rem;
  margin-left: auto;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--cinnabar);
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0.15rem 1rem 1.15rem;
}

.page-faq .faq-item__a p {
  margin: 0.85rem 0 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-item__a p:first-child {
  padding-left: 0.8rem;
  border-left: 3px solid var(--amber);
}

.page-faq .faq-item__a strong {
  color: var(--cinnabar-deep);
  font-weight: 700;
}

.page-faq .faq-item__a a {
  color: var(--cinnabar-deep);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

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

/* ---------- 深色索引区 ---------- */
.page-faq .faq-legend {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 4vw, 2.6rem);
  background: var(--bark);
  color: var(--paper);
  border: 2px solid var(--bark);
  box-shadow: 8px 8px 0 var(--gold);
}

.page-faq .faq-legend::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -110px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(217, 154, 61, 0.55), rgba(200, 70, 48, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-legend__head {
  position: relative;
  margin-bottom: 1.6rem;
}

.page-faq .faq-legend .index-tag {
  background: var(--amber);
  color: var(--bark);
}

.page-faq .faq-legend__head h2 {
  margin: 0.8rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 4vw, 2rem);
  line-height: 1.25;
  color: var(--surface);
}

.page-faq .faq-legend__lead {
  margin: 0.7rem 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(244, 239, 229, 0.76);
  max-width: 52ch;
}

.page-faq .faq-legend__lead a {
  color: var(--gold-pale);
  text-decoration: none;
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-legend__lead a:hover {
  color: var(--amber);
}

.page-faq .legend-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.page-faq .legend-col {
  border-top: 2px solid var(--line-light);
  padding-top: 0.85rem;
  min-width: 0;
}

.page-faq .legend-col__title {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--gold-pale);
}

.page-faq .legend-col__letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.55rem;
  height: 1.55rem;
  background: var(--gold);
  color: var(--bark);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  flex: none;
}

.page-faq .legend-col__meta {
  margin: 0.45rem 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: rgba(231, 210, 168, 0.62);
}

.page-faq .legend-col__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.1rem;
}

.page-faq .legend-col__list a {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.4rem 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-light);
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.page-faq .legend-col__list a:hover,
.page-faq .legend-col__list a:focus-visible {
  color: var(--amber);
  padding-left: 0.3rem;
}

.page-faq .legend-col__list a span {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
}

.page-faq .legend-col__list a:hover span {
  color: var(--amber);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .legend-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.6rem 1.8rem;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: end;
    gap: 2.6rem;
  }

  .page-faq .faq-group__body--aside {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 2rem;
  }

  .page-faq .faq-group__fig {
    position: sticky;
    top: calc(var(--header-h) + 1.6rem);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 3.2rem;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.4rem);
    align-self: start;
  }

  .page-faq .faq-group__head {
    padding-left: 1.2rem;
  }
}

@media (min-width: 1200px) {
  .page-faq .legend-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero__title {
    font-size: clamp(3rem, 5.4vw, 4.6rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .rail-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__sign::after,
  .page-faq .legend-col__list a {
    transition: none;
  }
}
<<<END>>>