.page-faq {
  --faq-side-w: 272px;
  --faq-gap: 44px;
  --faq-glow: rgba(34, 230, 255, 0.28);
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(64px, 9vw, 112px);
  background:
    radial-gradient(760px 380px at 82% -6%, rgba(123, 92, 255, 0.18), transparent 70%),
    radial-gradient(620px 340px at 2% 6%, rgba(34, 230, 255, 0.09), transparent 72%);
}

.page-faq .faq-hero {
  padding: clamp(18px, 3vw, 30px) 0 0;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 16px;
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--yi-text);
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0;
  color: var(--yi-muted);
  font-size: 16px;
  line-height: 1.85;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 148px;
  padding: 12px 16px;
  border: 1px solid var(--yi-line);
  border-radius: var(--yi-radius);
  background: linear-gradient(160deg, rgba(26, 16, 51, 0.9), rgba(7, 8, 13, 0.6));
}

.page-faq .faq-hero__statlabel {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yi-muted);
}

.page-faq .faq-hero__statvalue {
  font-family: var(--yi-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--yi-cyan);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: clamp(30px, 5vw, 52px);
}

.page-faq .faq-side {
  min-width: 0;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--yi-radius-lg);
}

.page-faq .faq-side__title {
  display: none;
}

.page-faq .faq-filter {
  position: relative;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--yi-line) transparent;
}

.page-faq .faq-filter::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-filter::-webkit-scrollbar-thumb {
  background: var(--yi-line);
  border-radius: var(--yi-pill);
}

.page-faq .faq-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-faq .faq-filter__label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
  padding: 10px 16px;
  border: 1px solid var(--yi-line);
  border-radius: var(--yi-pill);
  background: rgba(26, 16, 51, 0.5);
  color: var(--yi-muted);
  font-size: 14px;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.22s var(--yi-ease), border-color 0.22s var(--yi-ease),
    background 0.22s var(--yi-ease), box-shadow 0.22s var(--yi-ease);
}

.page-faq .faq-filter__label:hover {
  color: var(--yi-text);
  border-color: rgba(34, 230, 255, 0.45);
}

.page-faq .faq-filter__num {
  font-family: var(--yi-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(167, 176, 192, 0.8);
}

.page-faq .faq-filter__input:checked + .faq-filter__label {
  color: var(--yi-text);
  border-color: transparent;
  background:
    linear-gradient(180deg, rgba(36, 22, 64, 0.96), rgba(26, 16, 51, 0.96)) padding-box,
    linear-gradient(120deg, var(--yi-cyan), var(--yi-violet)) border-box;
  box-shadow: 0 0 0 1px var(--faq-glow), 0 12px 28px -18px var(--faq-glow);
}

.page-faq .faq-filter__input:checked + .faq-filter__label .faq-filter__num {
  color: var(--yi-cyan);
}

.page-faq .faq-filter__input:focus-visible + .faq-filter__label {
  outline: 2px solid var(--yi-cyan);
  outline-offset: 2px;
}

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

.page-faq .faq-group {
  margin-bottom: clamp(38px, 6vw, 64px);
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--yi-line);
}

.page-faq .faq-group__num {
  font-family: var(--yi-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--yi-cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--yi-text);
}

.page-faq .faq-group__lead {
  max-width: 68ch;
  margin: 14px 0 22px;
  color: var(--yi-muted);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-items {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--yi-line);
  border-radius: var(--yi-radius);
  background: linear-gradient(170deg, rgba(26, 16, 51, 0.78), rgba(7, 8, 13, 0.6));
  overflow: hidden;
  transition: border-color 0.25s var(--yi-ease), box-shadow 0.25s var(--yi-ease),
    background 0.25s var(--yi-ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(123, 92, 255, 0.55);
}

.page-faq .faq-item[open] {
  border-color: rgba(34, 230, 255, 0.42);
  background: linear-gradient(170deg, rgba(36, 22, 64, 0.86), rgba(7, 8, 13, 0.7));
  box-shadow: 0 0 0 1px rgba(34, 230, 255, 0.12), 0 26px 52px -36px var(--faq-glow);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  line-height: 1.6;
  color: var(--yi-text);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--yi-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--yi-cyan);
  transition: transform 0.25s var(--yi-ease);
}

.page-faq .faq-item[open] > summary::after {
  transform: rotate(45deg);
  color: var(--yi-orange);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--yi-cyan);
  outline-offset: -3px;
  border-radius: var(--yi-radius);
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
  color: var(--yi-muted);
  font-size: 15px;
  line-height: 1.85;
}

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

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

.page-faq .faq-item__body strong {
  color: var(--yi-text);
  font-weight: 600;
  word-break: break-word;
}

.page-faq .faq-item__body a {
  color: var(--yi-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 230, 255, 0.35);
  transition: border-color 0.2s var(--yi-ease), color 0.2s var(--yi-ease);
}

.page-faq .faq-item__body a:hover {
  color: var(--yi-text);
  border-bottom-color: var(--yi-text);
}

.page-faq .faq-steps {
  display: grid;
  gap: 6px;
  margin: 12px 0 12px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--yi-radius-sm);
  transition: background 0.2s var(--yi-ease), border-color 0.2s var(--yi-ease);
}

.page-faq .faq-steps li:hover {
  background: rgba(36, 22, 64, 0.75);
  border-color: rgba(34, 230, 255, 0.3);
}

.page-faq .faq-steps__num {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--yi-line);
  font-family: var(--yi-mono);
  font-size: 11px;
  color: var(--yi-cyan);
}

.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--yi-line);
  border-radius: var(--yi-radius);
  object-fit: cover;
  background: var(--yi-panel);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  color: var(--yi-muted);
  font-size: 13px;
  line-height: 1.7;
}

.page-faq .faq-layout:has(#faq-filt-account:checked) .faq-group:not([data-cat="account"]),
.page-faq .faq-layout:has(#faq-filt-bp:checked) .faq-group:not([data-cat="bp"]),
.page-faq .faq-layout:has(#faq-filt-library:checked) .faq-group:not([data-cat="library"]),
.page-faq .faq-layout:has(#faq-filt-subs:checked) .faq-group:not([data-cat="subs"]),
.page-faq .faq-layout:has(#faq-filt-support:checked) .faq-group:not([data-cat="support"]) {
  display: none;
}

@media (min-width: 640px) {
  .page-faq .faq-item > summary {
    padding: 18px 22px;
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    padding: 0 22px 20px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
    gap: var(--faq-gap);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
    padding: 20px;
    border-color: var(--yi-line);
    background: linear-gradient(180deg, rgba(26, 16, 51, 0.94), rgba(7, 8, 13, 0.72));
    backdrop-filter: blur(6px);
  }

  .page-faq .faq-side__title {
    display: block;
    margin: 0 0 12px;
    font-family: var(--yi-mono);
    font-size: 12px;
    letter-spacing: 0.16em;
    color: var(--yi-muted);
  }

  .page-faq .faq-filter {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-filter__label {
    width: 100%;
    justify-content: flex-start;
    white-space: normal;
    border-radius: var(--yi-radius-sm);
  }
}

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