.page-faq {
  --faq-index-w: 236px;
  --faq-deep: #0E6B54;
  --faq-deep-ink: #12302A;
  --faq-gap: 8px;
  color: var(--text);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 24px 0 48px;
  border-bottom: 1px solid var(--line-500);
  background:
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(61, 242, 192, .05) 79px 80px),
    var(--ink-900);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 26px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 7.2vw, 46px);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 800;
  font-stretch: condensed;
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
  color: var(--text);
  opacity: .86;
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-faq .faq-hero__jump a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line-500);
  color: var(--text);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  border-color: var(--cyan-400);
  color: var(--cyan-200);
}

.page-faq .faq-hero__jump .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan-400);
}

.page-faq .faq-hero__figure {
  margin: 0;
  aspect-ratio: 4 / 3;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  border: 1px solid var(--line-500);
  background: var(--ink-800);
  overflow: hidden;
}

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

/* 主体：目录 + 问答 */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: 26px;
  padding-bottom: 64px;
}

.page-faq .faq-index {
  border-bottom: 1px solid var(--line-500);
  padding-bottom: 20px;
}

.page-faq .faq-index .annotation {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .2em;
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line-500);
  color: var(--text);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--cyan-400);
  background: var(--ink-700);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan-400);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.7;
  max-width: 30em;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-faq .faq-group + .faq-group {
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--line-500);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-faq .faq-group__head .section__index {
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: .92;
  letter-spacing: -.04em;
  color: var(--cyan-400);
}

.page-faq .faq-group__head .section__title {
  margin: 4px 0 0;
  font-size: clamp(22px, 4.6vw, 30px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-group__lede {
  margin: 16px 0 18px;
  max-width: 36em;
  color: var(--text);
  opacity: .8;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-group__rule {
  position: relative;
  height: 1px;
  background: var(--line-500);
  margin-bottom: 6px;
}

.page-faq .faq-group__rule::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 72px;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--cyan-400) 0 8px, transparent 8px 16px);
}

/* 问答面板 */
.page-faq .accordion__item {
  border-left: 3px solid transparent;
  border-bottom: 1px solid var(--line-500);
  transition: background-color .16s var(--ease), border-left-color .16s var(--ease);
}

.page-faq .accordion__item:hover {
  border-left-color: var(--cyan-200);
}

.page-faq .accordion__item:has(.accordion__trigger[aria-expanded="true"]) {
  background: var(--ink-700);
  border-left-color: var(--cyan-400);
}

.page-faq .faq-q {
  margin: 0;
  font-weight: 400;
}

.page-faq .accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 18px 16px 18px 16px;
  background: none;
  border: 0;
  color: var(--text);
  font: inherit;
  font-size: 15.5px;
  line-height: 1.6;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-q__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan-400);
  padding-top: 4px;
}

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

.page-faq .faq-q__mark {
  flex: 0 0 auto;
  position: relative;
  width: 12px;
  height: 12px;
  margin-top: 7px;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan-400);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.page-faq .faq-q__mark::before {
  left: 0;
  top: 50%;
  width: 12px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-q__mark::after {
  top: 0;
  left: 50%;
  width: 1px;
  height: 12px;
  transform: translateX(-50%);
}

.page-faq .accordion__trigger[aria-expanded="true"] .faq-q__mark::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.page-faq .accordion__panel {
  padding: 0 18px 20px 44px;
}

.page-faq .accordion__panel p {
  margin: 0 0 10px;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
  opacity: .84;
}

.page-faq .accordion__panel p:last-of-type {
  margin-bottom: 0;
}

.page-faq .accordion__panel a:not(.faq-top) {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--line-500);
  transition: border-color .16s var(--ease);
}

.page-faq .accordion__panel a:not(.faq-top):hover {
  border-bottom-color: var(--cyan-400);
}

.page-faq .faq-top {
  display: inline-block;
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .04em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .faq-top:hover,
.page-faq .faq-top:focus-visible {
  color: var(--cyan-200);
  border-bottom-color: var(--cyan-200);
}

.page-faq .faq-footnote {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line-500);
}

.page-faq .faq-footnote p {
  margin: 0;
  max-width: 38em;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.75;
}

.page-faq .faq-footnote a {
  color: var(--cyan-200);
  text-decoration: none;
  border-bottom: 1px solid var(--line-500);
}

.page-faq .faq-footnote a:hover {
  border-bottom-color: var(--cyan-200);
}

/* 结尾反白联系区 */
.page-faq .faq-help {
  background: var(--paper);
  color: var(--faq-deep-ink);
}

.page-faq .faq-help__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-faq .faq-help .eyebrow {
  color: var(--faq-deep);
  font-size: 11px;
  letter-spacing: .2em;
}

.page-faq .faq-help h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 5.4vw, 34px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--faq-deep-ink);
}

.page-faq .faq-help__lede {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-deep-ink);
  opacity: .86;
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--faq-deep-ink);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 1px;
  background: var(--faq-deep);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .faq-help__cta {
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  background: var(--ink-900);
  color: var(--paper);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color .16s var(--ease), color .16s var(--ease);
}

.page-faq .faq-help__cta:hover,
.page-faq .faq-help__cta:focus-visible {
  background: var(--faq-deep);
  color: #FFFFFF;
}

.page-faq .faq-help__link {
  color: var(--faq-deep-ink);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid var(--faq-deep);
  padding-bottom: 2px;
  transition: color .16s var(--ease);
}

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

.page-faq .faq-help__meta {
  margin: 20px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--faq-deep-ink);
  opacity: .72;
}

.page-faq .faq-help__figure {
  margin: 0;
  aspect-ratio: 4 / 3;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
  overflow: hidden;
  border: 1px solid var(--line-500);
  background: var(--ink-800);
}

/* 断点 */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 32px 0 58px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 36px;
    align-items: start;
    margin-top: 32px;
  }

  .page-faq .faq-hero .lede {
    font-size: 16px;
  }

  .page-faq .accordion__trigger {
    padding: 22px 22px 22px 20px;
    font-size: 16px;
  }

  .page-faq .accordion__panel {
    padding: 0 22px 24px 56px;
  }

  .page-faq .accordion__panel p {
    font-size: 15px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero {
    padding: 36px 0 72px;
  }

  .page-faq .faq-hero h1 {
    font-size: 52px;
  }

  .page-faq .faq-hero__figure {
    aspect-ratio: 5 / 4;
  }

  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 64px;
    padding-top: 48px;
    padding-bottom: 88px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 28px);
    align-self: start;
    border-bottom: 0;
    border-right: 1px solid var(--line-500);
    padding: 0 24px 0 0;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 0;
    margin-top: 18px;
  }

  .page-faq .faq-index__link {
    padding: 14px 12px 14px 0;
    border: 0;
    border-bottom: 1px solid var(--line-500);
    font-size: 14px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: transparent;
    color: var(--cyan-200);
  }

  .page-faq .faq-index__num {
    font-size: 26px;
    line-height: 1;
    letter-spacing: -.03em;
    min-width: 2.4em;
  }

  .page-faq .faq-group__head .section__index {
    font-size: 48px;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 56px;
    align-items: center;
    padding-top: 64px;
    padding-bottom: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion__trigger,
  .page-faq .faq-q__mark::before,
  .page-faq .faq-q__mark::after,
  .page-faq .faq-index__link,
  .page-faq .faq-hero__jump a,
  .page-faq .faq-help__cta {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>