.page-faq {
  --faq-grid: 30px;
  --faq-grid-a: rgba(0, 229, 255, 0.05);
  --faq-grid-b: rgba(157, 78, 221, 0.06);
  --faq-index-w: 300px;
  background-image:
    linear-gradient(var(--faq-grid-a) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-a) 1px, transparent 1px),
    linear-gradient(var(--faq-grid-b) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-b) 1px, transparent 1px);
  background-size:
    var(--faq-grid) var(--faq-grid),
    var(--faq-grid) var(--faq-grid),
    calc(var(--faq-grid) * 4) calc(var(--faq-grid) * 4),
    calc(var(--faq-grid) * 4) calc(var(--faq-grid) * 4);
}

.page-faq .faq-hero {
  margin-top: 18px;
}

.page-faq .faq-hero__frame {
  display: grid;
  gap: 26px;
  padding: clamp(22px, 4vw, 42px);
  background:
    radial-gradient(70% 120% at 100% 0%, rgba(157, 78, 221, 0.18), transparent 62%),
    linear-gradient(135deg, rgba(10, 17, 40, 0.88), rgba(10, 17, 40, 0.66));
  border: 1px solid rgba(157, 78, 221, 0.38);
}

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

.page-faq .faq-hero__kicker {
  margin: 0 0 8px;
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 12px;
  font-family: var(--f-head);
  font-size: clamp(1.6rem, 4.6vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--c-light);
}

.page-faq .faq-hero__desc {
  max-width: 46em;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-faq .faq-hero__desc strong {
  color: var(--c-light);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-content: start;
}

.page-faq .stat-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 14px;
  background: rgba(10, 17, 40, 0.72);
  border: 1px solid rgba(0, 229, 255, 0.24);
  border-left: 3px solid var(--c-cyan);
}

.page-faq .stat-cell:nth-child(2),
.page-faq .stat-cell:nth-child(4) {
  transform: translateY(8px);
}

.page-faq .stat-cell__num {
  font-family: var(--f-head);
  font-size: 1.65rem;
  line-height: 1;
  color: var(--c-cyan);
}

.page-faq .stat-cell__label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.page-faq .qa-map {
  margin-top: clamp(36px, 6vw, 64px);
  scroll-margin-top: 72px;
}

.page-faq .qa-map__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
}

.page-faq .qa-index {
  position: relative;
  padding: 18px 16px 22px;
  background:
    linear-gradient(160deg, rgba(157, 78, 221, 0.14), rgba(10, 17, 40, 0.74) 55%),
    rgba(10, 17, 40, 0.84);
  border: 1px solid rgba(157, 78, 221, 0.42);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-faq .qa-index__map {
  position: relative;
  height: 170px;
  margin-bottom: 20px;
  overflow: hidden;
  background: var(--c-indigo);
  border: 1px solid rgba(0, 229, 255, 0.26);
}

.page-faq .qa-index__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.72;
}

.page-faq .qa-index__coord {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 1;
  background: rgba(10, 17, 40, 0.88);
  border: 1px solid rgba(0, 229, 255, 0.5);
  color: var(--c-cyan);
}

.page-faq .qa-index > h2 {
  margin: 0 0 6px;
  font-family: var(--f-head);
  font-size: 1.28rem;
  letter-spacing: -0.01em;
  color: var(--c-light);
}

.page-faq .qa-index__intro {
  margin: 0 0 14px;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-faq .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 0 0 16px;
  padding: 12px 0;
  border-top: 1px solid rgba(224, 225, 221, 0.1);
  border-bottom: 1px solid rgba(224, 225, 221, 0.1);
}

.page-faq .legend__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: 0.76rem;
  color: var(--c-muted);
}

.page-faq .legend__mark {
  width: 10px;
  height: 10px;
  flex: none;
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .filter-btn {
  padding: 7px 12px;
  font-family: var(--f-body);
  font-size: 0.82rem;
  background: rgba(224, 225, 221, 0.06);
  border: 1px solid rgba(224, 225, 221, 0.16);
  color: var(--c-muted);
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.page-faq .filter-btn:hover {
  border-color: var(--c-cyan);
  color: var(--c-light);
}

.page-faq .filter-btn[data-active] {
  background: rgba(157, 78, 221, 0.24);
  border-color: var(--c-purple);
  color: var(--c-light);
}

.page-faq .qa-index__nav {
  display: grid;
  gap: 4px;
}

.page-faq .coord-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  color: var(--c-light);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.page-faq .coord-item:hover {
  background: rgba(157, 78, 221, 0.12);
  border-left-color: var(--c-cyan);
  transform: translateX(4px);
}

.page-faq .coord-item__code {
  min-width: 46px;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--c-cyan);
}

.page-faq .coord-item__label {
  font-family: var(--f-body);
  font-size: 0.9rem;
}

.page-faq .qa-content {
  min-width: 0;
}

.page-faq .qa-section {
  margin-bottom: clamp(36px, 6vw, 64px);
  scroll-margin-top: 72px;
}

.page-faq .qa-section__head {
  margin-bottom: 20px;
  padding-top: 16px;
  border-top: 3px solid var(--c-purple);
}

.page-faq .qa-section__code {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-faq .qa-section__head h2 {
  margin: 6px 0;
  font-family: var(--f-head);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-light);
}

.page-faq .qa-section__desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--c-muted);
}

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

.page-faq .qa-section[data-filter-tag="setting"] .qa-section__head {
  border-top-color: var(--c-purple);
}

.page-faq .qa-section[data-filter-tag="app"] .qa-section__head {
  border-top-color: var(--c-cyan);
}

.page-faq .qa-section[data-filter-tag="event"] .qa-section__head {
  border-top-color: var(--c-ruby);
}

.page-faq .qa-section[data-filter-tag="dl"] .qa-section__head {
  border-top-color: var(--c-amber);
}

.page-faq .qa-section[data-filter-tag="safe"] .qa-section__head {
  border-top-color: var(--c-success);
}

.page-faq .qa-section--upgrade .qa-section__head {
  border-top-color: var(--c-indigo);
}

.page-faq .qa-card {
  margin: 0 0 12px;
  background: rgba(10, 17, 40, 0.72);
  border: 1px solid rgba(224, 225, 221, 0.12);
  transition: border-color 0.25s, transform 0.2s;
}

.page-faq .qa-card:hover {
  border-color: rgba(0, 229, 255, 0.4);
  transform: translateY(-2px);
}

.page-faq .qa-card[open] {
  border-color: rgba(157, 78, 221, 0.6);
}

.page-faq .qa-card summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 18px;
  list-style: none;
  font-family: var(--f-head);
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--c-light);
  cursor: pointer;
  user-select: none;
}

.page-faq .qa-card summary::-webkit-details-marker {
  display: none;
}

.page-faq .qa-card summary::before {
  content: "+";
  flex: none;
  font-family: var(--f-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--c-cyan);
  transition: color 0.2s;
}

.page-faq .qa-card[open] summary::before {
  content: "–";
  color: var(--c-purple);
}

.page-faq .qa-card__q {
  flex: none;
  margin-top: 2px;
  padding: 4px 6px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  line-height: 1;
  background: rgba(157, 78, 221, 0.18);
  border: 1px solid rgba(157, 78, 221, 0.45);
  color: var(--c-cyan);
}

.page-faq .qa-card__body {
  padding: 2px 18px 18px 44px;
  animation: faq-fade 0.3s var(--ease);
}

.page-faq .qa-card__body p {
  margin: 0 0 12px;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--c-light);
}

.page-faq .qa-card__copy {
  margin-top: 6px;
}

@keyframes faq-fade {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .qa-section__media {
  max-width: 360px;
  margin: 0 0 16px;
  background: var(--c-indigo);
  border: 1px solid rgba(0, 229, 255, 0.32);
}

.page-faq .qa-section__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
}

.page-faq .upgrade-card {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(157, 78, 221, 0.3), rgba(0, 229, 255, 0.14));
  border: 1px solid rgba(157, 78, 221, 0.45);
}

.page-faq .upgrade-card__item {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  background: rgba(10, 17, 40, 0.9);
}

.page-faq .upgrade-card__label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-faq .upgrade-card__value {
  font-family: var(--f-body);
  font-size: 0.95rem;
  color: var(--c-light);
  word-break: break-all;
}

.page-faq .upgrade-card .btn {
  justify-self: start;
}

.page-faq .upgrade-note {
  margin: 16px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-muted);
}

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

@media (min-width: 760px) {
  .page-faq .upgrade-card {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .upgrade-card__item--wide {
    grid-column: 1 / -1;
  }

  .page-faq .qa-section__media {
    float: right;
    width: 250px;
    margin: 6px 0 14px 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__frame {
    grid-template-columns: minmax(0, 1fr) 300px;
  }

  .page-faq .qa-map__layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .qa-index {
    position: sticky;
    top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}