.page-faq {
  --faq-sticky: calc(var(--header-main-h) + 28px);
  --faq-ink-soft: rgba(11, 16, 38, 0.92);
}

/* 面包屑 */
.page-faq .crumb {
  padding-top: clamp(18px, 4vw, 34px);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

/* 首屏 */
.page-faq .faq-hero {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: center;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--brick);
}

.page-faq .faq-hero__kicker::before {
  content: "";
  width: 30px;
  height: 2px;
  margin-right: 12px;
  background: var(--brick);
  flex: none;
}

.page-faq .faq-hero__title {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 6.4vw, 4.2rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.page-faq .faq-hero__lead {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: var(--step-1);
  line-height: 1.78;
  color: var(--fg);
}

.page-faq .faq-hero__note {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--fg-soft);
}

.page-faq .faq-hero__fig {
  margin: 0;
  box-shadow: 14px 14px 0 rgba(240, 116, 58, 0.16);
}

.page-faq .faq-hero__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 主体两栏 */
.page-faq .faq-main {
  padding-top: clamp(44px, 7vw, 84px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 4vw, 40px);
}

.page-faq .faq-index,
.page-faq .faq-panel {
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--index-blue);
}

.page-faq .faq-index__list {
  list-style: none;
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--fg-soft);
  text-decoration: none;
  white-space: nowrap;
  font-size: 0.9rem;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--fg);
  border-color: var(--brick);
  transform: translateY(-2px);
}

.page-faq .faq-index__door {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--brick);
}

.page-faq .faq-index__stat {
  margin: 14px 0 0;
}

/* 问答分组 */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-main-h) + 32px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-faq .faq-group::before {
  content: "";
  display: block;
  width: 52px;
  height: 2px;
  margin-bottom: 16px;
  background: linear-gradient(90deg, var(--brick), var(--neon-purple));
}

.page-faq .faq-group__index {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--brick);
}

.page-faq .faq-group__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.1vw, 2.05rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.page-faq .faq-group__head {
  margin-bottom: 22px;
}

/* 折叠卡 */
.page-faq .qa {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(22, 32, 74, 0.92), var(--faq-ink-soft));
  overflow: hidden;
  transition: border-color 0.24s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa:hover {
  border-color: var(--line-strong);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--brick);
  transition: width 0.36s var(--ease), background 0.24s var(--ease);
}

.page-faq .qa[open]::before {
  width: 100%;
  background: var(--neon-pink);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 17px 18px 15px;
  cursor: pointer;
  list-style: none;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--step-1);
  font-weight: 500;
  line-height: 1.55;
}

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

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--neon-pink);
  outline-offset: -2px;
}

.page-faq .qa__num {
  flex: none;
  margin-top: 4px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  font-weight: 400;
  color: var(--brick);
}

.page-faq .qa__text {
  min-width: 0;
}

.page-faq .qa[open] .qa__text {
  color: var(--fg);
}

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  margin: 6px 0 0 auto;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--index-blue);
  transition: transform 0.28s var(--ease), background 0.24s var(--ease);
}

.page-faq .qa__mark::before {
  left: 0;
  top: 7px;
  width: 15px;
  height: 1.5px;
}

.page-faq .qa__mark::after {
  left: 7px;
  top: 0;
  width: 1.5px;
  height: 15px;
}

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

.page-faq .qa[open] .qa__mark::before {
  background: var(--neon-pink);
}

.page-faq .qa__a {
  padding: 16px 18px 20px;
  border-top: 1px solid var(--line);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 38em;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--fg-soft);
}

.page-faq .qa__a p + p {
  margin-top: 10px;
}

.page-faq .qa__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  color: var(--neon-pink);
}

/* 关键词标签 */
.page-faq .kw {
  display: inline-block;
  margin: 0 2px;
  padding: 1px 8px;
  border: 1px solid rgba(198, 75, 224, 0.42);
  border-radius: var(--radius);
  background: rgba(198, 75, 224, 0.1);
  color: #E4A8F2;
  font-size: 0.86em;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* 章节配图 */
.page-faq .faq-fig {
  margin: 24px 0 0;
  max-width: 540px;
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 下一步 */
.page-faq .faq-next {
  padding-top: clamp(52px, 8vw, 96px);
}

.page-faq .faq-next__card {
  position: relative;
  padding: clamp(26px, 5vw, 44px);
  background: linear-gradient(135deg, rgba(74, 36, 24, 0.85), rgba(22, 32, 74, 0.9));
}

.page-faq .faq-next__index {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-faq .faq-next__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.page-faq .faq-next__text {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: var(--step-0);
  line-height: 1.78;
  color: var(--fg-soft);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 桌面端 */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(40px, 6vw, 80px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: clamp(44px, 5vw, 76px);
    max-width: 1060px;
    margin: 0 auto;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    align-self: start;
    padding-top: 4px;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 0;
    margin-top: 14px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index__list a {
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    padding: 12px 0;
    white-space: normal;
    background: none;
    transition: color 0.24s var(--ease), padding-left 0.24s var(--ease);
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-color: var(--line);
    border-bottom-color: var(--brick);
    padding-left: 8px;
    transform: none;
  }

  .page-faq .qa__q {
    padding: 20px 24px 18px;
    font-size: 1.12rem;
  }

  .page-faq .qa__a {
    padding: 18px 24px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa::before,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-index__list a {
    transition: none;
  }

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