.page-faq {
  --faq-line: rgba(147, 167, 188, 0.26);
  --faq-text: #CBD8E5;
  --faq-line-strong: rgba(147, 167, 188, 0.42);
  background: var(--ink-900);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(88px, 14vw, 132px) 0 48px;
  background-image:
    linear-gradient(180deg, rgba(8, 24, 43, 0.35) 0%, var(--ink-900) 78%),
    repeating-linear-gradient(90deg, rgba(27, 69, 104, 0.28) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(0deg, rgba(27, 69, 104, 0.28) 0 1px, transparent 1px 48px);
}

.page-faq .faq-crumbs {
  margin-bottom: 26px;
}

.page-faq .faq-crumbs .db-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--stone);
}

.page-faq .faq-crumbs a {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(34px, 7.2vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__titleMark {
  display: inline-block;
  color: var(--lime);
  border-bottom: 3px solid var(--mint);
  padding-bottom: 2px;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 60ch;
  color: var(--faq-text);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-faq .faq-hero__facts .db-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--lime);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--ink-800);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-700);
  box-shadow: 0 18px 40px rgba(4, 12, 22, 0.45);
}

.page-faq .faq-hero__media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 4px;
  background: var(--lime);
  z-index: 1;
}

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

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding: 8px 0 72px;
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-topics__label {
  margin: 0 0 12px;
  color: var(--mint);
}

.page-faq .faq-topics__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-topics__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  padding: 10px 14px;
  border: 1px solid var(--faq-line-strong);
  border-radius: var(--radius);
  background: var(--ink-700);
  color: var(--paper);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 180ms var(--ease), color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-topics__num {
  font-size: 12px;
  color: var(--mint);
  letter-spacing: 0.06em;
}

.page-faq .faq-topics__link:hover,
.page-faq .faq-topics__link:focus-visible {
  border-color: var(--violet);
  color: var(--lime);
  background: var(--ink-600);
}

.page-faq .faq-topics__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
}

.page-faq .faq-groups {
  display: grid;
  gap: 8px;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
  padding: 28px 0 10px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
}

.page-faq .faq-group__num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mint);
  transition: color 200ms var(--ease);
}

.page-faq .faq-group:target .faq-group__num {
  color: var(--lime);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 3.6vw, 30px);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__intro {
  margin: 0 0 16px 28px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 问题条目 ---------- */
.page-faq .faq-list {
  display: grid;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  transition: background 180ms var(--ease);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  bottom: 13px;
  width: 3px;
  border-radius: 2px;
  background: transparent;
  transition: background 200ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::before {
  background: var(--lime);
}

.page-faq .faq-item__q:hover .faq-item__text,
.page-faq .faq-item__q:focus-visible .faq-item__text {
  color: var(--lime);
}

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

.page-faq .faq-item__idx {
  flex: none;
  min-width: 24px;
  padding-top: 2px;
  font-size: 12px;
  color: var(--stone);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  transition: color 180ms var(--ease);
}

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  margin-left: 6px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  border-radius: 1px;
  background: var(--mint);
  transform: translateY(-50%);
  transition: transform 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-item__icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::before,
.page-faq .faq-item[open] .faq-item__icon::after {
  background: var(--lime);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-item__a {
  margin: 0 0 16px 40px;
  padding: 16px 18px;
  border: 1px solid var(--ink-800);
  border-left: 3px solid var(--mint);
  border-radius: var(--radius);
  background: var(--ink-700);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-text);
}

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

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

/* ---------- 联系块 ---------- */
.page-faq .faq-group--contact {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-contact {
  display: grid;
  gap: 20px;
  margin: 16px 0 20px;
  padding: 20px;
  border: 1px solid var(--ink-800);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius);
  background: var(--ink-700);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact__key {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-faq .faq-contact__val {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__val a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.45);
}

.page-faq .faq-contact__val a:hover,
.page-faq .faq-contact__val a:focus-visible {
  border-color: var(--lime);
}

.page-faq .faq-contact__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-600);
}

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

.page-faq .faq-contact__hint {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-bottom: 56px;
  }

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

  .page-faq .faq-item__q {
    font-size: 16px;
    padding-left: 20px;
  }

  .page-faq .faq-item__a {
    margin-left: 44px;
    padding: 18px 22px;
  }

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

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: center;
    padding: 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: end;
  }

  .page-faq .faq-hero__media img {
    height: 100%;
    min-height: 280px;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: minmax(196px, 3fr) minmax(0, 9fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-topics {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-topics__list {
    display: grid;
    gap: 8px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-topics__link {
    justify-content: flex-start;
    width: 100%;
    white-space: normal;
    text-align: left;
  }

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

  .page-faq .faq-group {
    padding-top: 32px;
  }

  .page-faq .faq-group__intro {
    margin-left: 32px;
  }

  .page-faq .faq-item__a {
    margin-left: 48px;
    max-width: 76ch;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__title {
    max-width: 16ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-item__q::before,
  .page-faq .faq-item__text,
  .page-faq .faq-topics__link,
  .page-faq .faq-crumbs a {
    transition: none;
  }
}
<<<END>>>