.page-faq {
  --faq-rail-w: 244px;
  --faq-gap: 44px;
  --faq-sticky-top: 108px;
  --faq-line-strong: rgba(53, 240, 200, 0.34);
  color: var(--dt-paper);
  background: var(--dt-bg);
}

.page-faq :focus-visible {
  outline: 2px solid var(--dt-cyan);
  outline-offset: 3px;
}

.page-faq .faq-topbar {
  padding-top: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 22px 0 52px;
  background:
    linear-gradient(180deg, rgba(20, 54, 42, 0.55) 0%, rgba(7, 19, 15, 0) 78%),
    repeating-linear-gradient(90deg, rgba(157, 182, 171, 0.07) 0 1px, transparent 1px 80px);
  border-bottom: 1px solid var(--dt-line-soft);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  font-family: var(--dt-font-display);
  font-weight: 700;
  font-size: clamp(2rem, 7.6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  margin: 0;
  font-family: var(--dt-font-body);
  font-size: 1rem;
  line-height: 1.72;
  color: var(--dt-muted);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 34px;
  margin: 26px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--dt-line-soft);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--dt-font-mono);
  font-size: clamp(1.9rem, 6vw, 2.7rem);
  line-height: 1;
  color: var(--dt-cyan);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--dt-muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__media {
  margin: 0;
  border-top: 2px solid var(--dt-amber);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: 30px;
  padding-top: 44px;
  padding-bottom: 24px;
}

.page-faq .faq-rail {
  background: linear-gradient(160deg, var(--dt-raise) 0%, var(--dt-panel) 70%);
  border-top: 2px solid var(--dt-cyan);
  padding: 16px 16px 18px;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--dt-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dt-cool);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  white-space: nowrap;
  font-size: 0.9rem;
  color: var(--dt-paper);
  text-decoration: none;
  border: 1px solid var(--dt-line-soft);
  transition: background 0.25s var(--dt-ease), border-color 0.25s var(--dt-ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--dt-raise);
  border-color: var(--faq-line-strong);
}

.page-faq .faq-rail__num {
  font-family: var(--dt-font-mono);
  font-size: 0.7rem;
  color: var(--dt-cyan);
}

.page-faq .faq-rail__count {
  font-family: var(--dt-font-mono);
  font-size: 0.7rem;
  color: var(--dt-muted);
  padding-left: 8px;
  border-left: 1px solid var(--dt-line-soft);
}

.page-faq .faq-rail__note {
  margin: 14px 0 0;
  font-family: var(--dt-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--dt-muted);
}

.page-faq .faq-group {
  margin-bottom: 44px;
  scroll-margin-top: var(--faq-sticky-top);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line-strong);
  margin-bottom: 6px;
}

.page-faq .faq-group__index {
  font-family: var(--dt-font-mono);
  font-size: 0.78rem;
  color: var(--dt-cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--dt-font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 4.4vw, 1.8rem);
  letter-spacing: 0.02em;
}

.page-faq .faq-group__count {
  margin-left: auto;
  font-family: var(--dt-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--dt-muted);
}

.page-faq .faq-group__figure {
  margin: 20px 0 6px;
}

.page-faq .faq-group__figure .dt-media__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-group__more {
  margin: 18px 0 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--dt-muted);
}

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

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--dt-line-soft);
  padding: 0 14px;
  transition: background 0.3s var(--dt-ease);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--dt-font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--dt-paper);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  padding-top: 0.25em;
  font-family: var(--dt-font-mono);
  font-size: 0.74rem;
  font-weight: 400;
  color: var(--dt-muted);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
}

.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--dt-font-mono);
  font-size: 1.1rem;
  line-height: 1.2;
  color: var(--dt-cyan);
}

.page-faq .faq-item[open] {
  background: var(--dt-panel);
  box-shadow: inset 2px 0 0 var(--dt-cyan);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-item[open] > summary {
  color: var(--dt-cool);
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
}

.page-faq .faq-item__a {
  padding: 0 0 18px 34px;
  color: rgba(234, 246, 240, 0.84);
  font-size: 0.95rem;
  line-height: 1.74;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

.page-faq .faq-item__a p:last-of-type {
  margin-bottom: 12px;
}

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

.page-faq .faq-item__anchor {
  display: inline-block;
  font-family: var(--dt-font-mono);
  font-size: 0.72rem;
  color: var(--dt-muted);
  text-decoration: none;
}

.page-faq .faq-item__anchor:hover,
.page-faq .faq-item__anchor:focus-visible {
  color: var(--dt-cyan);
}

/* ---------- 底部咨询 ---------- */
.page-faq .faq-help {
  padding-bottom: 64px;
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 26px;
  padding: 26px 20px 30px;
  background:
    linear-gradient(120deg, rgba(255, 178, 74, 0.08) 0%, rgba(13, 36, 28, 0.96) 42%),
    var(--dt-panel);
  border-top: 2px solid var(--dt-amber);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .faq-help__text h2 {
  margin: 10px 0 14px;
  font-family: var(--dt-font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 4.6vw, 2rem);
  line-height: 1.16;
}

.page-faq .faq-help__text p {
  margin: 0 0 20px;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.74;
  color: rgba(234, 246, 240, 0.84);
}

.page-faq .faq-help__contact {
  padding-top: 20px;
  border-top: 1px solid var(--dt-line-soft);
}

.page-faq .faq-help__contact .dt-contact__value {
  font-family: var(--dt-font-mono);
  font-size: 0.9rem;
  word-break: break-word;
}

.page-faq .faq-help__contact .dt-contact__note {
  margin: 16px 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--dt-muted);
}

.page-faq .faq-help__contact .dt-contact__note a {
  color: var(--dt-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 28px 0 64px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: center;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 34px;
    padding: 32px 30px 36px;
    align-items: start;
  }

  .page-faq .faq-help__contact {
    padding-top: 0;
    border-top: 0;
    border-left: 1px solid var(--dt-line-soft);
    padding-left: 26px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-gap);
    padding-top: 56px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
    padding: 20px 18px 22px;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    white-space: normal;
    font-size: 0.88rem;
  }

  .page-faq .faq-item__a {
    padding-left: 40px;
    max-width: 66ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-rail__link {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>