.page-faq {
  --faq-ink-soft: rgba(26, 26, 23, .58);
  --faq-paper-line: rgba(26, 26, 23, .14);
  --faq-gap: clamp(28px, 5vw, 64px);
  position: relative;
  padding-bottom: clamp(56px, 9vw, 120px);
  background:
    radial-gradient(circle at 84% 4%, rgba(53, 242, 192, .09), transparent 44%),
    radial-gradient(circle at 6% 62%, rgba(180, 67, 43, .10), transparent 40%),
    var(--yd-night);
  color: var(--yd-text);
}

.page-faq .faq-hero {
  padding: clamp(26px, 5vw, 54px) 0 clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--yd-edge);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-faq .faq-hero__title {
  max-width: 22ch;
  margin: 0;
  font-size: clamp(1.95rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  color: #F3F8F5;
}

.page-faq .faq-hero__lede {
  max-width: 60ch;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--yd-text);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__meta-item {
  padding: 6px 12px;
  border: 1px solid var(--yd-edge);
  background: var(--yd-panel);
  font-family: var(--yd-font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--yd-mist);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  padding-top: var(--faq-gap);
}

/* 左侧问题目录 ---------------------------------------------------- */
.page-faq .faq-toc {
  min-width: 0;
  padding: 18px clamp(16px, 2vw, 22px);
  border: 1px solid var(--yd-edge);
  background:
    linear-gradient(180deg, rgba(14, 31, 25, .96), rgba(7, 17, 14, .96));
  box-shadow: var(--yd-shadow);
}

.page-faq .faq-toc__head {
  margin: 0 0 12px;
  color: var(--yd-cyan);
}

.page-faq .faq-toc__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-toc__link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 8px;
  border-left: 2px solid transparent;
  color: var(--yd-text);
  font-size: .9375rem;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color .16s ease, color .16s ease, background-color .16s ease;
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-left-color: var(--yd-cyan);
  background: rgba(53, 242, 192, .06);
  color: #FFFFFF;
  outline: none;
}

.page-faq .faq-toc__link:focus-visible {
  box-shadow: 0 0 0 1px var(--yd-cyan);
}

.page-faq .faq-toc__idx {
  font-family: var(--yd-font-mono);
  font-size: .8125rem;
  font-weight: 500;
  color: var(--yd-red);
}

.page-faq .faq-toc__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--yd-edge);
  font-size: .875rem;
  line-height: 1.7;
  color: var(--yd-mist);
}

.page-faq .faq-toc__jump {
  color: var(--yd-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 192, .4);
}

.page-faq .faq-toc__jump:hover,
.page-faq .faq-toc__jump:focus-visible {
  color: #FFFFFF;
  border-bottom-color: var(--yd-cyan);
  outline: none;
}

/* 右侧答案区 ------------------------------------------------------ */
.page-faq .faq-body {
  min-width: 0;
}

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

.page-faq .faq-group {
  position: relative;
  margin-bottom: 20px;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--yd-edge);
  background: var(--yd-panel);
  box-shadow: var(--yd-shadow);
  scroll-margin-top: 96px;
}

.page-faq .faq-group--paper {
  background: var(--yd-paper);
  border-color: var(--faq-paper-line);
  color: var(--yd-black);
}

.page-faq .faq-group:target {
  border-color: var(--yd-cyan);
  box-shadow: inset 3px 0 0 var(--yd-cyan), 0 1px 0 rgba(0, 0, 0, .4);
}

.page-faq .faq-group--paper:target {
  border-color: var(--yd-red);
  box-shadow: inset 3px 0 0 var(--yd-red), 0 1px 0 rgba(0, 0, 0, .18);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}

.page-faq .faq-group__num {
  display: inline-block;
  padding: 2px 6px;
  background: var(--yd-red);
  color: #F6EFE9;
  font-family: var(--yd-font-mono);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .08em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.25rem, 2.6vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.3;
  color: #F0F6F3;
}

.page-faq .faq-group--paper .faq-group__title {
  color: var(--yd-black);
}

.page-faq .faq-group__scope {
  margin: 0 0 6px;
  font-family: var(--yd-font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--yd-mist);
}

.page-faq .faq-group--paper .faq-group__scope {
  color: var(--faq-ink-soft);
}

.page-faq .faq-qa {
  padding: 18px 0 4px;
  border-top: 1px solid var(--yd-edge);
}

.page-faq .faq-group--paper .faq-qa {
  border-top-color: var(--faq-paper-line);
}

.page-faq .faq-q {
  margin: 0 0 8px;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
  color: #EAF2EE;
}

.page-faq .faq-group--paper .faq-q {
  color: var(--yd-black);
}

.page-faq .faq-a {
  max-width: 68ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--yd-text);
}

.page-faq .faq-group--paper .faq-a {
  color: #2B2B26;
}

/* 插图 ------------------------------------------------------------ */
.page-faq .faq-figure {
  max-width: 640px;
  margin: 22px 0 4px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--yd-edge);
  border-radius: var(--yd-radius);
  background: var(--yd-deep);
}

.page-faq .faq-group--paper .faq-figure img {
  border-color: rgba(26, 26, 23, .2);
  background: #DCD4C0;
}

.page-faq .faq-figure__cap {
  display: block;
  margin-top: 8px;
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--yd-mist);
}

.page-faq .faq-group--paper .faq-figure__cap {
  color: var(--faq-ink-soft);
}

/* 结尾行动区 ------------------------------------------------------ */
.page-faq .faq-cta {
  margin-top: 26px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--yd-edge);
  background:
    linear-gradient(120deg, rgba(53, 242, 192, .10), transparent 58%),
    var(--yd-deep);
  box-shadow: var(--yd-shadow);
}

.page-faq .faq-cta__title {
  margin: 0 0 10px;
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -.02em;
  color: #F3F8F5;
}

.page-faq .faq-cta__text {
  max-width: 62ch;
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--yd-text);
}

.page-faq .faq-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-cta__links .yd-btn {
  text-decoration: none;
}

/* 响应式 ---------------------------------------------------------- */
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(220px, 272px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 92px;
  }
}

@media (max-width: 599px) {
  .page-faq .faq-group__head {
    gap: 8px;
  }

  .page-faq .faq-qa {
    padding-top: 16px;
  }

  .page-faq .faq-figure {
    margin-top: 18px;
  }

  .page-faq .faq-cta__links {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-cta__links .yd-btn {
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__link {
    transition: none;
  }
}
<<<END>>>