.page-faq {
  --faq-line: rgba(11, 42, 36, .13);
  --faq-line-soft: rgba(11, 42, 36, .075);
  --faq-box: rgba(255, 255, 255, .62);
  background: var(--ld-paper);
  color: var(--ld-ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.4rem, 4vw, 2.3rem) 0 clamp(2rem, 5vw, 3.4rem);
  background:
    radial-gradient(115% 85% at 92% -18%, rgba(25, 227, 194, .18), transparent 58%),
    radial-gradient(80% 70% at -12% 112%, rgba(255, 179, 71, .13), transparent 62%),
    linear-gradient(180deg, var(--ld-mist) 0%, var(--ld-paper) 92%);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__frame {
  position: relative;
  margin-top: clamp(1.1rem, 3vw, 1.9rem);
  padding: clamp(1.5rem, 4.5vw, 3.1rem);
  border: var(--ld-hair);
  border-radius: var(--ld-radius);
  background: var(--faq-box);
  box-shadow: var(--ld-shadow);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--ld-cyan) 0%, var(--ld-cyan-soft) 48%, var(--ld-flame) 100%);
}

.page-faq .faq-hero__title {
  margin: .85rem 0 0;
  max-width: 22ch;
  font-family: var(--ld-font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.2vw, 3.35rem);
  line-height: 1.1;
  letter-spacing: -.025em;
}

.page-faq .faq-hero__lede {
  margin: 1.15rem 0 0;
  max-width: 62ch;
  color: var(--ld-slate);
  font-size: clamp(.95rem, 2.3vw, 1.06rem);
  line-height: 1.72;
}

.page-faq .faq-hero__tags {
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-sticky {
  position: sticky;
  top: 0;
  z-index: 8;
  padding: .8rem 0;
  background: rgba(245, 248, 245, .93);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-filters {
  margin: 0;
  row-gap: .45rem;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding-top: clamp(1.4rem, 4vw, 2.4rem);
  padding-bottom: clamp(2rem, 5vw, 3.2rem);
}

.page-faq .faq-list {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line-soft);
  background: transparent;
  transition: background-color .35s var(--ld-ease);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(25, 227, 194, .075) 0%, rgba(25, 227, 194, 0) 70%);
}

.page-faq .faq-item[hidden] {
  display: none;
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr) 14px;
  align-items: start;
  gap: clamp(.7rem, 2.4vw, 1.4rem);
  padding: clamp(1.05rem, 3vw, 1.5rem) clamp(.7rem, 2.4vw, 1.35rem);
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: clamp(.98rem, 2.2vw, 1.13rem);
  line-height: 1.55;
  letter-spacing: -.008em;
  color: var(--ld-ink);
  transition: color .25s var(--ld-ease);
}

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

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

.page-faq .faq-item__q:hover {
  color: var(--ld-cyan-deep);
}

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

.page-faq .faq-item__idx {
  padding-top: .38em;
  font-family: var(--ld-font-mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--ld-slate);
  transition: color .25s var(--ld-ease);
}

.page-faq .faq-item[open] .faq-item__idx {
  color: var(--ld-cyan-deep);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 13px;
  height: 13px;
  margin-top: .48em;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--ld-slate);
  transition: transform .32s var(--ld-ease), background-color .25s var(--ld-ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 5.5px;
  width: 13px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  left: 5.5px;
  top: 0;
  width: 2px;
  height: 13px;
}

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--ld-cyan-deep);
}

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

.page-faq .faq-item__a {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr) 14px;
  gap: clamp(.7rem, 2.4vw, 1.4rem);
  padding: 0 clamp(.7rem, 2.4vw, 1.35rem) clamp(1.2rem, 3vw, 1.75rem);
}

.page-faq .faq-item__a > * {
  grid-column: 2;
}

.page-faq .faq-item__a p {
  margin: 0 0 .72rem;
  max-width: 66ch;
  color: var(--ld-slate);
  font-size: clamp(.92rem, 2.1vw, .99rem);
  line-height: 1.72;
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__a ul {
  margin: .1rem 0 .8rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .45rem;
  max-width: 66ch;
}

.page-faq .faq-item__a li {
  position: relative;
  padding-left: 1.05rem;
  color: var(--ld-slate);
  font-size: clamp(.92rem, 2.1vw, .99rem);
  line-height: 1.68;
}

.page-faq .faq-item__a li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: .5rem;
  height: 1px;
  background: var(--ld-cyan-deep);
}

.page-faq .faq-item__a li strong {
  color: var(--ld-ink);
  font-weight: 700;
}

.page-faq .faq-num {
  font-family: var(--ld-font-mono);
  font-weight: 700;
  color: var(--ld-ink);
}

.page-faq .faq-item__a a {
  color: var(--ld-cyan-deep);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 133, 116, .4);
  transition: color .25s var(--ld-ease), border-color .25s var(--ld-ease);
}

.page-faq .faq-item__a a:hover {
  color: var(--ld-flame);
  border-bottom-color: var(--ld-flame);
}

.page-faq .faq-go {
  margin-top: .6rem;
}

.page-faq .faq-go a {
  font-family: var(--ld-font-mono);
  font-size: .79rem;
  letter-spacing: .03em;
}

.page-faq .faq-go a::after {
  content: " →";
}

/* ---------- 图示 ---------- */
.page-faq .faq-figure {
  margin: clamp(1.7rem, 4.2vw, 2.7rem) auto;
  padding: 0;
}

.page-faq .faq-figure--full {
  max-width: 940px;
}

.page-faq .faq-figure--portrait {
  max-width: 540px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--ld-radius);
  border: var(--ld-hair);
  background: var(--ld-mist);
}

.page-faq .faq-figure figcaption {
  margin-top: .7rem;
  font-family: var(--ld-font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--ld-slate);
  text-align: right;
}

/* ---------- 底部支持入口 ---------- */
.page-faq .faq-cta {
  position: relative;
  margin: clamp(1.8rem, 5vw, 2.8rem) 0 clamp(2.4rem, 6vw, 3.8rem);
  padding: clamp(1.6rem, 4.5vw, 2.9rem);
  overflow: hidden;
  border-radius: var(--ld-radius);
  background: linear-gradient(135deg, var(--ld-ink) 0%, var(--ld-ink-3) 52%, #0F4438 100%);
  color: var(--ld-paper);
  box-shadow: var(--ld-shadow);
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 245, 225, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 245, 225, .08) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(85% 125% at 100% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(85% 125% at 100% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-faq .faq-cta::after {
  content: "";
  position: absolute;
  top: -45%;
  right: -8%;
  width: 46%;
  height: 190%;
  background: linear-gradient(90deg, transparent 0%, rgba(25, 227, 194, .24) 50%, transparent 100%);
  transform: rotate(17deg);
  pointer-events: none;
}

.page-faq .faq-cta__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.4rem;
}

.page-faq .faq-cta__title {
  margin: 0;
  font-family: var(--ld-font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.4vw, 2.05rem);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--ld-white);
}

.page-faq .faq-cta__text {
  margin: .85rem 0 0;
  max-width: 56ch;
  color: rgba(232, 240, 234, .82);
  font-size: .95rem;
  line-height: 1.72;
}

.page-faq .faq-cta__facts {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.page-faq .faq-cta__facts li {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  align-items: baseline;
}

.page-faq .faq-cta__k {
  min-width: 5.2rem;
  font-family: var(--ld-font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--ld-cyan);
}

.page-faq .faq-cta__v {
  font-family: var(--ld-font-mono);
  font-size: .85rem;
  color: var(--ld-white);
  word-break: break-word;
}

.page-faq .faq-cta__act {
  display: flex;
  align-items: flex-end;
}

.page-faq .faq-cta__act .ld-btn {
  white-space: nowrap;
}

/* ---------- 响应式 ---------- */
@media (max-width: 899px) {
  .page-faq .faq-sticky {
    top: var(--ld-topbar);
  }
}

@media (min-width: 780px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 2rem;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-item__q,
  .page-faq .faq-item__a {
    grid-template-columns: 1.75rem minmax(0, 1fr) 13px;
    gap: .6rem;
    padding-left: .45rem;
    padding-right: .45rem;
  }

  .page-faq .faq-item__a > * {
    grid-column: 2 / -1;
  }

  .page-faq .faq-figure figcaption {
    text-align: left;
  }

  .page-faq .faq-cta__act {
    align-items: flex-start;
  }

  .page-faq .faq-cta__act .ld-btn {
    width: 100%;
  }
}
<<<END>>>