.page-faq {
  --faq-version: var(--cyan);
  --faq-fee: var(--amber);
  --faq-download: var(--blue);
  --faq-channel: #9FB6C4;
  --faq-body-text: #C3D0D9;
  --faq-group-c: var(--cyan);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

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

.page-faq__crumb {
  padding: 14px var(--gutter) 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-faq .page-faq__crumb .breadcrumb__link {
  color: var(--steel);
  text-decoration: none;
}

.page-faq .page-faq__crumb .breadcrumb__link:hover {
  color: var(--cyan);
}

.page-faq .page-faq__crumb .breadcrumb__sep {
  color: var(--line);
  margin: 0 8px;
}

.page-faq .faq-hero {
  position: relative;
  padding: 8px var(--gutter) clamp(28px, 5vw, 52px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 100% at 10% 0%, rgba(45, 226, 197, .13), transparent 58%),
    repeating-linear-gradient(90deg, rgba(43, 59, 71, .45) 0 1px, transparent 1px 96px),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 28px 0 0;
  border: 1px solid var(--line);
  background: rgba(22, 35, 46, .62);
}

.page-faq .faq-stats__item {
  padding: 12px 12px 14px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-stats__item:first-child {
  border-left: 0;
}

.page-faq .faq-stats dt {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--steel);
  line-height: 1.4;
}

.page-faq .faq-stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.6vw, 22px);
  letter-spacing: .02em;
  color: var(--cyan);
  line-height: 1.2;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  padding: 16px var(--gutter) 18px;
}

.page-faq .faq-index__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__link .mono {
  font-size: 10.5px;
  letter-spacing: .06em;
  color: var(--cyan);
}

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

.page-faq .faq-index__note {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-index__note p {
  margin: 0 0 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--steel);
}

.page-faq .faq-index__cta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  text-decoration: none;
  border-bottom: 1px dashed var(--cyan);
  padding-bottom: 2px;
}

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

.page-faq .faq-toolbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px var(--gutter);
  background: rgba(11, 22, 32, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.page-faq .faq-toolbar__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .filter-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--steel);
  flex: 0 0 auto;
}

.page-faq .filter-chip[data-filter="version"]::before { background: var(--faq-version); }
.page-faq .filter-chip[data-filter="fee"]::before { background: var(--faq-fee); }
.page-faq .filter-chip[data-filter="download"]::before { background: var(--faq-download); }
.page-faq .filter-chip[data-filter="channel"]::before { background: var(--faq-channel); }

.page-faq .filter-chip:hover {
  border-color: var(--steel);
}

.page-faq .filter-chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-faq .filter-chip[aria-pressed="true"]::before {
  background: var(--ink);
}

.page-faq .filter-chip:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-faq .faq-group {
  position: relative;
  padding: clamp(24px, 4vw, 44px) var(--gutter);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--faq-group-c);
  opacity: .75;
}

.page-faq .faq-group--version { --faq-group-c: var(--cyan); }
.page-faq .faq-group--fee { --faq-group-c: var(--amber); }
.page-faq .faq-group--download { --faq-group-c: var(--blue); }
.page-faq .faq-group--channel { --faq-group-c: var(--faq-channel); }

.page-faq .faq-group .section-head__index {
  color: var(--faq-group-c);
}

.page-faq .faq-group .section-head__title {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

.page-faq .faq-group__lead {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .qa {
  margin-top: 10px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  background: rgba(22, 35, 46, .72);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa:hover {
  border-left-color: var(--faq-group-c);
}

.page-faq .qa[open] {
  background: var(--panel);
  border-left-color: var(--faq-group-c);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--faq-group-c);
}

.page-faq .qa[open] .qa__q::after {
  content: "\2212";
}

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

.page-faq .qa__no {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-faq .qa[open] .qa__no {
  color: var(--faq-group-c);
}

.page-faq .qa__a {
  padding: 0 16px 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .qa__a p {
  margin: 0 0 8px;
  max-width: 64ch;
}

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

.page-faq .qa__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 197, .4);
}

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

.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-deep);
  max-width: 560px;
}

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

.page-faq .faq-figure__cap {
  display: block;
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-faq .faq-handoff {
  padding: clamp(28px, 5vw, 56px) var(--gutter);
  background:
    linear-gradient(180deg, var(--panel) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-handoff .section-head__title {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

.page-faq .faq-handoff .section-head__index {
  color: var(--amber);
}

.page-faq .faq-handoff__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.page-faq .faq-handoff__panel {
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(11, 22, 32, .72);
}

.page-faq .faq-handoff__panel--contact {
  border-left: 3px solid var(--amber);
}

.page-faq .faq-handoff__lead {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-body-text);
  max-width: 56ch;
}

.page-faq .faq-checklist {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.6;
}

.page-faq .faq-checklist li:last-child {
  border-bottom: 0;
}

.page-faq .faq-checklist .mono {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan);
  flex: 0 0 auto;
}

.page-faq .faq-handoff__extra {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-handoff__label {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--amber);
}

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

.page-faq .faq-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-contact li:last-child {
  border-bottom: 0;
}

.page-faq .faq-contact__k {
  flex: 0 0 44px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-faq .faq-contact__v {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--faq-body-text);
}

.page-faq .faq-contact .copy-btn {
  font-size: 13px;
  color: var(--paper);
  background: transparent;
  border: 0;
  border-bottom: 1px dashed var(--line);
  padding: 2px 0;
  cursor: pointer;
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

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

.page-faq .faq-contact .copy-btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-faq .faq-handoff__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

@media (min-width: 640px) {
  .page-faq .faq-stats__item {
    padding: 14px 18px 16px;
  }

  .page-faq .faq-handoff__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 18px;
  }

  .page-faq .qa__a {
    padding-left: 52px;
  }

  .page-faq .qa__a p {
    max-width: 62ch;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 0;
    align-self: start;
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding: 28px 18px 34px;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    margin-top: 14px;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list li {
    margin-bottom: 4px;
  }

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    padding: 9px 10px 9px 12px;
    border: 0;
    border-left: 2px solid var(--line);
    background: transparent;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(45, 226, 197, .07);
  }

  .page-faq .faq-toolbar {
    padding: 14px clamp(24px, 3vw, 40px);
  }

  .page-faq .faq-group {
    padding-left: clamp(24px, 3vw, 40px);
    padding-right: clamp(24px, 3vw, 40px);
  }

  .page-faq .faq-handoff {
    padding-left: clamp(24px, 3vw, 40px);
    padding-right: clamp(24px, 3vw, 40px);
  }

  .page-faq .faq-hero,
  .page-faq__crumb {
    padding-left: clamp(24px, 3vw, 40px);
    padding-right: clamp(24px, 3vw, 40px);
  }

  .page-faq .faq-group__lead {
    margin-top: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .filter-chip,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>