.page-faq {
  --faq-node: 232px;
  background: var(--deep);
  color: var(--steel);
  overflow-x: clip;
}

.page-faq .faq-inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(18px, 4.5vw, 52px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(28px, 5vw, 52px) clamp(40px, 7vw, 88px);
  background:
    radial-gradient(120% 92% at 86% 0%, rgba(95, 227, 207, .10), transparent 58%),
    linear-gradient(180deg, var(--ink) 0%, var(--deep) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin: 0 0 clamp(26px, 4.5vw, 52px);
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--violet);
}

.page-faq .breadcrumbs__item {
  color: inherit;
  text-decoration: none;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--violet-deep);
}

.page-faq .breadcrumbs a.breadcrumbs__item:hover {
  color: var(--cyan);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: end;
}

.page-faq .faq-eyebrow {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 14px 0 20px;
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: clamp(28px, 5.4vw, 50px);
  line-height: 1.12;
  letter-spacing: .03em;
  color: var(--white);
}

.page-faq .faq-hero__intro {
  margin: 0 0 28px;
  max-width: 56ch;
  font-family: var(--ff-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--violet);
}

.page-faq .faq-hero__facts strong {
  margin-right: 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.page-faq .faq-hero__art {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 22px 4px 22px 4px;
  background: var(--deep-mid);
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.72) contrast(1.06);
}

.page-faq .faq-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(201, 214, 228, .10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201, 214, 228, .10) 1px, transparent 1px);
  background-size: 44px 44px;
}

/* ---------- 两栏问答 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(30px, 4vw, 44px);
  padding-block: clamp(38px, 6vw, 84px) clamp(36px, 5vw, 60px);
}

.page-faq .faq-side {
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-side__label {
  margin: 0 0 14px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--violet);
}

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

.page-faq .faq-side__link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  border-radius: 10px 2px 10px 2px;
  text-decoration: none;
  color: var(--steel);
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  background: rgba(18, 58, 90, .62);
  border-left-color: var(--cyan);
  color: var(--white);
}

.page-faq .faq-side__num {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .faq-side__text {
  font-size: 14px;
  line-height: 1.5;
}

.page-faq .faq-side__top {
  display: inline-block;
  margin-top: 22px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--violet);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

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

.page-faq .faq-main {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
  padding-bottom: clamp(34px, 5vw, 60px);
  margin-bottom: clamp(34px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-sec__head {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-faq .faq-sec__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--ff-mono);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  letter-spacing: .02em;
  color: rgba(95, 227, 207, .52);
}

.page-faq .faq-sec__title {
  margin: 0 0 10px;
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 29px);
  line-height: 1.28;
  letter-spacing: .05em;
  color: var(--white);
}

.page-faq .faq-sec__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--violet);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
}

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

.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item h3 {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-trigger {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 18px;
  gap: 12px;
  align-items: start;
  width: 100%;
  padding: 18px 8px;
  background: none;
  border: 0;
  border-radius: 12px 3px 12px 3px;
  text-align: left;
  cursor: pointer;
  color: inherit;
  font: inherit;
  transition: background .25s var(--ease);
}

.page-faq .faq-trigger:hover,
.page-faq .faq-trigger:focus-visible {
  background: rgba(18, 58, 90, .48);
}

.page-faq .faq-num {
  font-family: var(--ff-mono);
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .faq-q {
  display: block;
  font-family: var(--ff-head);
  font-weight: 600;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.55;
  letter-spacing: .025em;
  color: var(--white);
}

.page-faq .faq-tag {
  display: inline-block;
  margin-left: 10px;
  padding: 1px 8px;
  border: 1px solid rgba(95, 227, 207, .48);
  border-radius: 8px 2px 8px 2px;
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: .12em;
  vertical-align: middle;
  color: var(--cyan);
}

.page-faq .faq-sign {
  position: relative;
  display: block;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}

.page-faq .faq-sign::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-sign::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-trigger[aria-expanded="true"] .faq-sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-answer {
  padding: 0 8px 22px 50px;
  max-width: 66ch;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
  font-family: var(--ff-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

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

/* ---------- 收尾 ---------- */
.page-faq .faq-tail {
  padding-bottom: clamp(56px, 8vw, 108px);
}

.page-faq .faq-outro {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
  padding: clamp(26px, 4.5vw, 52px);
  background: var(--paper);
  color: var(--ink);
  border-radius: 26px 4px 26px 4px;
}

.page-faq .faq-outro__label {
  margin: 0 0 12px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--ink-teal);
}

.page-faq .faq-outro__title {
  margin: 0 0 14px;
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.28;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-faq .faq-outro__lead {
  margin: 0 0 22px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.page-faq .faq-outro__cta {
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 14px 3px 14px 3px;
  background: var(--lava);
  color: var(--white);
  font-family: var(--ff-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  transition: transform .25s var(--ease), filter .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-outro__cta:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
}

.page-faq .faq-outro__cta--ghost {
  background: transparent;
  border-color: rgba(7, 18, 31, .24);
  color: var(--ink);
}

.page-faq .faq-outro__cta--ghost:hover {
  border-color: var(--ink-teal);
  color: var(--ink-teal);
  filter: none;
}

.page-faq .faq-outro__meta {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(7, 18, 31, .12);
  list-style: none;
}

.page-faq .faq-outro__meta li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  font-family: var(--ff-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .faq-outro__meta span {
  min-width: 72px;
  font-family: var(--ff-body);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-muted);
}

.page-faq .faq-outro__art {
  margin: 0;
  aspect-ratio: 10 / 7;
  overflow: hidden;
  border: 1px solid rgba(7, 18, 31, .14);
  border-radius: 18px 4px 18px 4px;
}

.page-faq .faq-outro__art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.78);
}

/* ---------- 响应式 ---------- */
@media (max-width: 620px) {
  .page-faq .faq-trigger {
    grid-template-columns: 26px minmax(0, 1fr) 16px;
    gap: 10px;
    padding: 16px 4px;
  }

  .page-faq .faq-answer {
    padding: 0 4px 20px 36px;
  }

  .page-faq .faq-side__link {
    grid-template-columns: 28px minmax(0, 1fr);
    padding: 9px 8px;
  }

  .page-faq .faq-outro__meta li {
    font-size: 12px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(40px, 6vw, 78px);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-node) minmax(0, 1fr);
    gap: clamp(44px, 6vw, 84px);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--topbar-h) + 28px);
  }
}

@media (min-width: 820px) {
  .page-faq .faq-outro {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
  }
}
<<<END>>>