.page-faq {
  position: relative;
}

.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 6vw, 72px) 0 clamp(20px, 3vw, 40px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(185, 103, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 0% 0%, #000 0%, transparent 70%);
  mask-image: radial-gradient(ellipse 90% 70% at 0% 0%, #000 0%, transparent 70%);
  pointer-events: none;
}

.page-faq .hc-breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  gap: 8px;
}

.page-faq .hc-breadcrumb-link {
  color: var(--hc-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--hc-transition);
}

.page-faq .hc-breadcrumb-link:hover {
  color: var(--hc-accent);
}

.page-faq .hc-breadcrumb-sep {
  color: var(--hc-muted);
  font-size: 0.85rem;
}

.page-faq .hc-breadcrumb-current {
  color: var(--hc-text);
  font-family: var(--hc-font-mono);
  font-size: 0.85rem;
}

.page-faq .faq-hero-inner {
  display: flex;
  flex-direction: column;
  gap: 26px;
  align-items: flex-start;
}

.page-faq .faq-hero-text {
  max-width: 920px;
}

.page-faq .faq-hero-text .hc-kicker {
  margin-bottom: 12px;
  display: inline-block;
}

.page-faq .faq-hero-text h1 {
  font-family: var(--hc-font-head);
  font-size: clamp(1.9rem, 4.2vw, 3.4rem);
  line-height: 1.08;
  margin: 0 0 18px;
  color: var(--hc-text);
  letter-spacing: 0.01em;
}

.page-faq .faq-hl {
  color: var(--hc-accent);
  text-shadow: 0 0 24px rgba(185, 103, 255, 0.35);
}

.page-faq .faq-hero-desc {
  max-width: 720px;
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--hc-accent-blue);
  color: var(--hc-muted);
  font-size: clamp(0.95rem, 1.4vw, 1.08rem);
  line-height: 1.75;
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
  background: var(--hc-bg-surface);
  border: 1px solid var(--hc-border);
  border-radius: 999px;
  padding: 10px 16px;
  box-shadow: var(--hc-shadow), inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.page-faq .faq-filter-ico {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--hc-accent);
  margin-right: 2px;
}

.page-faq .faq-radio {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.page-faq .faq-filter-chip {
  font-family: var(--hc-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--hc-muted);
  cursor: pointer;
  background: transparent;
  transition: background var(--hc-transition), color var(--hc-transition), border-color var(--hc-transition), box-shadow var(--hc-transition);
}

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

.page-faq .faq-radio:checked + .faq-filter-chip {
  background: linear-gradient(90deg, rgba(185, 103, 255, 0.2), rgba(0, 212, 255, 0.12));
  color: var(--hc-text);
  border-color: var(--hc-accent);
  box-shadow: var(--hc-glow-purple);
}

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

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(32px, 6vw, 72px);
}

@media (min-width: 1100px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
  }
}

.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5vw, 56px);
}

.page-faq .faq-section {
  scroll-margin-top: 140px;
}

.page-faq .hc-chapter {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--hc-border);
}

.page-faq .hc-chapter-num {
  font-family: var(--hc-font-mono);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(185, 103, 255, 0.9);
  text-shadow: 0 0 18px rgba(185, 103, 255, 0.45);
}

.page-faq .hc-chapter h2 {
  font-family: var(--hc-font-head);
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 6px;
  color: var(--hc-text);
}

.page-faq .faq-section-sub {
  margin: 0;
  color: var(--hc-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--hc-bg-surface);
  border: 1px solid var(--hc-border);
  border-radius: var(--hc-radius-sm);
  overflow: hidden;
  transition: border-color var(--hc-transition), box-shadow var(--hc-transition), background var(--hc-transition);
}

.page-faq .faq-item[open] {
  border-color: rgba(185, 103, 255, 0.6);
  box-shadow: var(--hc-glow-purple), var(--hc-shadow);
  background: var(--hc-bg-raised);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  transition: background var(--hc-transition);
}

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

.page-faq .faq-item summary:hover {
  background: rgba(185, 103, 255, 0.05);
}

.page-faq .faq-num {
  flex-shrink: 0;
  font-family: var(--hc-font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--hc-accent);
  border: 1px solid var(--hc-border);
  border-radius: 6px;
  padding: 4px 7px;
}

.page-faq .faq-q {
  flex: 1;
  font-family: var(--hc-font-head);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--hc-text);
  overflow-wrap: anywhere;
}

.page-faq .faq-toggle {
  position: relative;
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border: 1px solid var(--hc-border);
  border-radius: 50%;
  transition: transform var(--hc-transition), border-color var(--hc-transition), background var(--hc-transition);
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--hc-accent);
  transition: background var(--hc-transition);
}

.page-faq .faq-toggle::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-toggle::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-toggle {
  transform: rotate(45deg);
  border-color: var(--hc-accent);
  background: rgba(185, 103, 255, 0.08);
}

.page-faq .faq-item[open] .faq-toggle::before,
.page-faq .faq-item[open] .faq-toggle::after {
  background: var(--hc-accent-blue);
}

.page-faq .faq-a {
  padding: 4px 18px 18px;
  color: var(--hc-muted);
  font-size: 0.95rem;
  line-height: 1.75;
  border-top: 1px dashed rgba(185, 103, 255, 0.18);
  margin-top: 4px;
  overflow-wrap: anywhere;
}

@media (min-width: 760px) {
  .page-faq .faq-a {
    padding: 4px 20px 20px 56px;
  }
}

.page-faq .faq-a p {
  margin: 12px 0 0;
}

.page-faq .faq-a .hc-mono,
.page-faq .faq-device-copy .hc-mono {
  color: var(--hc-text);
  overflow-wrap: anywhere;
}

.page-faq .faq-item[open] .faq-a {
  animation: faq-reveal 0.25s ease;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-device-section {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 2px solid var(--hc-border);
}

.page-faq .faq-device-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

@media (min-width: 760px) {
  .page-faq .faq-device-block {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }
}

.page-faq .faq-device-media {
  overflow: hidden;
  border: 1px solid var(--hc-border-blue);
  border-radius: var(--hc-radius);
  box-shadow: var(--hc-shadow);
}

.page-faq .faq-device-media img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 220px;
  object-fit: cover;
}

.page-faq .faq-device-copy {
  padding: 10px 0;
}

.page-faq .hc-overline {
  display: inline-block;
  font-family: var(--hc-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--hc-accent);
  border: 1px solid var(--hc-border);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(185, 103, 255, 0.08);
}

.page-faq .faq-device-copy h3 {
  font-family: var(--hc-font-head);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  line-height: 1.2;
  color: var(--hc-text);
  margin: 12px 0 12px;
}

.page-faq .faq-device-copy p {
  color: var(--hc-muted);
  font-size: 0.93rem;
  line-height: 1.75;
  margin: 0 0 10px;
  overflow-wrap: anywhere;
}

.page-faq .faq-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-faq .faq-data-card,
.page-faq .faq-help-card {
  background: var(--hc-bg-surface);
  border: 1px solid var(--hc-border);
  border-radius: var(--hc-radius);
  box-shadow: var(--hc-shadow);
  overflow: hidden;
}

.page-faq .faq-media-wrap {
  position: relative;
  height: 280px;
  overflow: hidden;
  border-bottom: 1px solid var(--hc-border);
}

.page-faq .faq-media-wrap img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.page-faq .faq-media-wrap:hover img {
  transform: scale(1.04);
}

.page-faq .faq-data-body {
  padding: 18px 20px 22px;
}

.page-faq .faq-datum-list {
  margin: 16px 0 18px;
  padding: 0;
}

.page-faq .faq-datum-list .hc-datum {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(185, 103, 255, 0.16);
}

.page-faq .faq-datum-list .hc-datum-label {
  font-size: 0.85rem;
  color: var(--hc-muted);
}

.page-faq .faq-datum-list .hc-datum-value {
  font-family: var(--hc-font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--hc-accent);
}

.page-faq .faq-help-card {
  padding: 22px 20px;
  border-left: 3px solid var(--hc-accent);
}

.page-faq .faq-help-title {
  font-family: var(--hc-font-head);
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--hc-text);
  margin: 0 0 10px;
}

.page-faq .faq-help-card p {
  color: var(--hc-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 14px;
  overflow-wrap: anywhere;
}

.page-faq .faq-bottom-cta {
  padding-bottom: clamp(32px, 6vw, 72px);
}

.page-faq .faq-bottom-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(185, 103, 255, 0.12), rgba(0, 212, 255, 0.08)),
    var(--hc-bg-surface);
  border: 1px solid var(--hc-border);
  border-radius: var(--hc-radius);
  padding: clamp(24px, 4vw, 40px);
  box-shadow: var(--hc-shadow);
}

@media (min-width: 760px) {
  .page-faq .faq-bottom-wrap {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

.page-faq .faq-bottom-copy .hc-kicker {
  display: inline-block;
  margin-bottom: 8px;
}

.page-faq .faq-bottom-copy h2 {
  font-family: var(--hc-font-head);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.2;
  color: var(--hc-text);
  margin: 0 0 10px;
}

.page-faq .faq-bottom-copy p {
  max-width: 640px;
  margin: 0;
  color: var(--hc-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.page-faq .faq-bottom-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-start;
}

@media (min-width: 760px) {
  .page-faq .faq-bottom-actions {
    justify-content: flex-end;
  }
}

.page-faq:has(#faq-filter-access:checked) .faq-section:not([data-faq-group="access"]),
.page-faq:has(#faq-filter-update:checked) .faq-section:not([data-faq-group="update"]),
.page-faq:has(#faq-filter-device:checked) .faq-section:not([data-faq-group="device"]) {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}