.page-faq {
  --faq-rail-w: 210px;
  --faq-rule: rgba(159, 179, 200, .18);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px) 0 clamp(22px, 3.5vw, 36px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: clamp(72px, 16%, 200px);
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), rgba(0, 229, 208, 0));
}

.page-faq .faq-hero__mark {
  position: absolute;
  right: -6px;
  top: -22px;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(76px, 15vw, 170px);
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(0, 229, 208, .055);
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  max-width: 20ch;
  font-size: clamp(28px, 5.6vw, 46px);
  line-height: 1.16;
  letter-spacing: -.012em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: var(--t-16);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  padding-top: clamp(22px, 4vw, 42px);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: var(--t-12);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  white-space: nowrap;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(16, 42, 62, .4);
  color: var(--muted);
  font-size: var(--t-14);
  text-decoration: none;
  transition: border-color .25s var(--ease), color .25s var(--ease), background .25s var(--ease);
}

.page-faq .faq-rail__link .mono {
  font-size: var(--t-12);
  color: var(--amber);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link[aria-current] {
  border-color: var(--line-strong);
  background: rgba(0, 229, 208, .09);
  color: var(--paper);
}

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

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 58px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 8px solid var(--wine);
}

.page-faq .faq-group--violet .faq-group__head {
  border-left-color: var(--violet);
}

.page-faq .faq-group__num {
  flex: none;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1;
  color: rgba(232, 241, 248, .22);
  letter-spacing: -.02em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group__desc {
  margin: 6px 0 0;
  max-width: 62ch;
  font-size: var(--t-14);
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-figure {
  margin: 0 0 18px;
}

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

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: var(--t-12);
  letter-spacing: .02em;
  color: var(--muted);
}

.page-faq .faq-item {
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(16, 42, 62, .42);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--line-strong);
  background: rgba(16, 42, 62, .74);
}

.page-faq .faq-q {
  position: relative;
  display: block;
  margin: 0;
  padding: 15px 46px 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: var(--t-16);
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .faq-q::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 24px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .3s var(--ease);
}

.page-faq .faq-item[open] .faq-q::after {
  transform: rotate(-135deg);
}

.page-faq .faq-a {
  padding: 0 16px 18px;
  font-size: var(--t-14);
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  max-width: 66ch;
}

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

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

.page-faq .steps {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .steps > li {
  counter-increment: faqstep;
  position: relative;
  margin-top: 9px;
  padding-left: 36px;
  max-width: 64ch;
}

.page-faq .steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  padding: 0 5px;
  font-family: var(--f-mono);
  font-size: var(--t-12);
  line-height: 1.4;
  color: var(--amber);
  border: 1px solid rgba(255, 179, 58, .42);
  border-radius: 2px;
}

.page-faq .faq-diagram {
  margin: 16px 0 4px;
  padding: 14px 14px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(5, 11, 20, .6);
}

.page-faq .faq-diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-diagram figcaption {
  margin-top: 8px;
  font-size: var(--t-12);
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-tip {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin: clamp(26px, 4vw, 44px) 0;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(255, 46, 136, .10), rgba(0, 229, 208, .05) 55%, rgba(0, 229, 208, 0));
  font-size: var(--t-14);
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-tip__mark {
  flex: none;
  padding: 2px 6px;
  border: 1px solid rgba(255, 46, 136, .5);
  border-radius: 2px;
  font-size: var(--t-12);
  letter-spacing: .12em;
  color: var(--magenta);
}

.page-faq .faq-tip p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .faq-figure--side {
  margin: clamp(22px, 4vw, 34px) 0 0;
}

.page-faq .faq-contact .panel-body {
  padding-top: 4px;
}

.page-faq .faq-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist > li {
  position: relative;
  margin-top: 10px;
  padding-left: 34px;
  font-size: var(--t-14);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-checklist > li > .mono {
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  text-align: center;
  font-size: var(--t-12);
  color: var(--cyan);
  border: 1px solid rgba(0, 229, 208, .4);
  border-radius: 2px;
}

.page-faq .faq-code {
  padding: 1px 6px;
  background: rgba(0, 229, 208, .1);
  border: 1px solid rgba(0, 229, 208, .28);
  border-radius: 2px;
  color: var(--cyan-soft);
  font-size: var(--t-12);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-rule);
  font-size: var(--t-14);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-note .mono {
  color: var(--paper);
}

.page-faq .data-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(34px, 5vw, 56px);
}

@media (min-width: 720px) {
  .page-faq .data-strip {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 72px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 32px;
    align-self: start;
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list li + li {
    margin-top: 6px;
  }

  .page-faq .faq-rail__link {
    display: flex;
    width: 100%;
    white-space: normal;
    padding: 10px 12px;
  }

  .page-faq .faq-group {
    scroll-margin-top: 24px;
  }

  .page-faq .faq-group__num {
    font-size: var(--t-40);
  }

  .page-faq .faq-figure--side {
    max-width: 76%;
  }
}

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