.page-faq {
  --faq-rail-width: 252px;
  position: relative;
  padding-bottom: 72px;
  background:
    radial-gradient(circle at 10% 4%, rgba(0, 229, 255, 0.07), transparent 30%),
    radial-gradient(circle at 92% 36%, rgba(255, 106, 0, 0.05), transparent 26%),
    var(--color-bg);
  color: var(--color-mist);
}

.page-faq .faq-hero {
  position: relative;
  padding-top: 56px;
  padding-bottom: 36px;
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: "FAQ";
  position: absolute;
  z-index: 0;
  right: -0.08em;
  top: 0.02em;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(7rem, 20vw, 17rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 229, 255, 0.12);
  transform: rotate(-5deg);
  pointer-events: none;
  white-space: nowrap;
}
.page-faq .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: 28px;
}
.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}
@media (min-width: 880px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: 48px;
  }
}
.page-faq .faq-hero-copy .page-label {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 12px;
  border: 1px solid rgba(0, 229, 255, 0.35);
  background: rgba(0, 229, 255, 0.06);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-cyan);
}
.page-faq .page-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 5.4vw, 3.8rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-mist);
}
.page-faq .page-subtitle {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(0.9375rem, 1.4vw, 1.0625rem);
  line-height: 1.85;
  color: var(--color-steel);
}
.page-faq .faq-hero-stats {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
@media (min-width: 640px) {
  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}
@media (min-width: 880px) {
  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}
.page-faq .faq-hero-stat {
  margin: 0;
  padding: 16px 14px;
  border: 1px solid var(--border-color);
  border-top: 2px solid var(--color-cyan);
  background: linear-gradient(145deg, rgba(27, 33, 64, 0.82), rgba(10, 14, 39, 0.55));
}
.page-faq .faq-hero-stat .metric-label {
  display: block;
  margin: 0 0 8px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: var(--color-steel);
}
.page-faq .faq-hero-stat .metric-number {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.55rem;
  line-height: 1.1;
  color: var(--color-mist);
}

.page-faq .faq-overview {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 6px;
  padding-bottom: 34px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}
.page-faq .faq-overview-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  background: rgba(27, 33, 64, 0.72);
  color: var(--color-mist);
  text-decoration: none;
  font-size: 0.875rem;
  line-height: 1.4;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}
.page-faq .faq-overview-link span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-cyan);
}
.page-faq .faq-overview-link:hover,
.page-faq .faq-overview-link:focus-visible {
  border-color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.1);
  transform: translateY(-2px);
}

.page-faq .faq-main-layout {
  position: relative;
}
.page-faq .faq-contact-rail {
  display: none;
}
@media (min-width: 1280px) {
  .page-faq .faq-hero,
  .page-faq .faq-overview {
    padding-right: calc(var(--faq-rail-width) + 36px);
  }
  .page-faq .faq-main-content {
    padding-right: calc(var(--faq-rail-width) + 36px);
  }
  .page-faq .faq-contact-rail {
    display: block;
    position: fixed;
    right: 22px;
    top: 50%;
    transform: translateY(-50%);
    width: var(--faq-rail-width);
    z-index: 90;
    padding: 20px;
    border: 1px solid rgba(255, 106, 0, 0.65);
    background: rgba(10, 14, 39, 0.94);
    box-shadow: 0 0 0 1px rgba(10, 14, 39, 0.85), 0 20px 54px rgba(0, 0, 0, 0.5);
  }
  .page-faq .faq-rail-label {
    margin: 0 0 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    color: var(--color-orange);
  }
  .page-faq .faq-rail-time {
    margin: 0 0 16px;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-mist);
  }
  .page-faq .faq-rail-link {
    display: block;
    margin: 10px 0;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.5;
    word-break: break-all;
    color: var(--color-steel);
    text-decoration: none;
    transition: color 0.2s ease;
  }
  .page-faq .faq-rail-link:hover,
  .page-faq .faq-rail-link:focus-visible {
    color: var(--color-cyan);
  }
  .page-faq .faq-rail-cta {
    margin-top: 16px;
    width: 100%;
    justify-content: center;
  }
}

.page-faq .faq-section {
  --faq-accent: var(--color-cyan);
  position: relative;
  overflow: hidden;
  padding-top: 62px;
  padding-bottom: 56px;
  scroll-margin-top: 32px;
}
.page-faq .faq-accent-orange {
  --faq-accent: var(--color-orange);
}
.page-faq .faq-accent-neon {
  --faq-accent: var(--color-neon);
}
.page-faq .faq-section::before {
  content: "";
  position: absolute;
  top: -90px;
  right: -130px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 1px solid rgba(230, 233, 245, 0.08);
  pointer-events: none;
}
.page-faq .faq-section::after {
  content: "";
  position: absolute;
  top: 66px;
  left: 0;
  width: 110px;
  height: 1px;
  background: linear-gradient(90deg, var(--faq-accent), transparent);
  pointer-events: none;
}

.page-faq .faq-section-heading {
  position: relative;
  z-index: 1;
  padding-left: 16px;
  margin-bottom: 34px;
}
.page-faq .faq-section-heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.28em;
  width: 6px;
  height: 1.15em;
  background: var(--faq-accent);
  transform: skewX(-12deg);
}
.page-faq .section-index {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  line-height: 1;
  color: var(--faq-accent);
  opacity: 0.9;
}
.page-faq .section-label {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faq-accent);
}
.page-faq .section-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.75rem, 3.6vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-mist);
}
.page-faq .section-intro {
  margin: 0;
  max-width: 44ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-steel);
}

.page-faq .faq-qa-list {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-color);
}
.page-faq .faq-item {
  border-bottom: 1px solid var(--border-color);
  background: transparent;
}
.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(230, 233, 245, 0.035), transparent 60%);
}
.page-faq .faq-item-summary {
  list-style: none;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 22px 4px;
  cursor: pointer;
  user-select: none;
}
.page-faq .faq-item-summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item-summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--faq-accent);
}
.page-faq .faq-item[open] .faq-item-summary::after {
  content: "−";
}
.page-faq .faq-item-summary:hover .faq-item-question,
.page-faq .faq-item-summary:focus-visible .faq-item-question {
  color: var(--faq-accent);
}
.page-faq .faq-item-summary:focus-visible {
  outline: 1px dashed var(--faq-accent);
  outline-offset: 3px;
}
.page-faq .faq-item-num {
  min-width: 3ch;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-neon);
  text-shadow: 0 0 18px rgba(57, 255, 20, 0.3);
}
.page-faq .faq-item-question {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--color-mist);
  transition: color 0.2s ease;
}
@media (min-width: 680px) {
  .page-faq .faq-item-question {
    font-size: 1.1875rem;
  }
}
.page-faq .faq-item-answer {
  margin-left: calc(3ch + 14px);
  padding: 0 0 26px 16px;
  max-width: 72ch;
  border-left: 2px solid var(--faq-accent);
}
.page-faq .faq-item[open] .faq-item-answer {
  animation: faq-answer-in 0.28s ease;
}
@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.page-faq .faq-item-answer-text {
  margin: 0 0 14px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(230, 233, 245, 0.82);
}
.page-faq .faq-item-answer .faq-answer-link {
  color: var(--color-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-item-answer .faq-answer-link:hover,
.page-faq .faq-item-answer .faq-answer-link:focus-visible {
  color: var(--color-orange);
}
.page-faq .faq-em-data {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.9em;
  color: var(--color-cyan);
}
.page-faq .faq-em-text {
  font-weight: 700;
  color: var(--color-mist);
}

.page-faq .faq-device-panel {
  position: relative;
  z-index: 1;
  margin-top: 38px;
  padding: 22px;
  border: 1px solid var(--border-color);
  background:
    linear-gradient(135deg, rgba(0, 229, 255, 0.07), transparent 58%),
    rgba(27, 33, 64, 0.5);
}
.page-faq .faq-device-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-mist);
}
.page-faq .faq-device-desc {
  margin: 0 0 18px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-steel);
}
.page-faq .faq-device-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-faq .faq-device-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  background: rgba(10, 14, 39, 0.65);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.page-faq .faq-device-chip:hover {
  border-color: rgba(0, 229, 255, 0.45);
}
.page-faq .faq-device-chip input {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  margin: 0;
  border: 1px solid var(--color-steel);
  cursor: pointer;
  position: relative;
}
.page-faq .faq-device-chip input:checked {
  border-color: var(--color-neon);
  background: var(--color-neon);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.4);
}
.page-faq .faq-device-chip input:focus-visible {
  outline: 1px dashed var(--color-neon);
  outline-offset: 2px;
}
.page-faq .faq-device-chip:has(input:checked) {
  border-color: var(--color-neon);
  background: rgba(57, 255, 20, 0.08);
}
.page-faq .faq-device-chip-text {
  font-size: 0.8125rem;
  color: var(--color-mist);
}
.page-faq .faq-device-chip .tag {
  font-size: 0.72rem;
}
.page-faq .faq-device-note {
  margin: 16px 0 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--color-steel);
}

.page-faq .faq-media {
  position: relative;
  z-index: 1;
  margin: 42px 0 0;
}
.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--border-color);
}
.page-faq .faq-media-caption {
  margin: 10px 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--color-steel);
}
@media (min-width: 880px) {
  .page-faq .faq-media-device {
    max-width: 620px;
  }
  .page-faq .faq-media-timeline {
    max-width: 860px;
  }
}

.page-faq .faq-contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}
@media (min-width: 1000px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 40px;
  }
}
.page-faq .faq-contact-card {
  padding: 24px;
  border: 1px solid rgba(255, 106, 0, 0.5);
  background:
    linear-gradient(160deg, rgba(255, 106, 0, 0.1), transparent 55%),
    rgba(27, 33, 64, 0.6);
}
.page-faq .faq-contact-card .faq-media {
  margin-top: 0;
}
.page-faq .faq-contact-dl {
  margin: 22px 0 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-contact-dl .data-pair {
  display: grid;
  gap: 4px;
  grid-template-columns: 1fr;
}
.page-faq .faq-contact-dl .data-label {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--color-steel);
}
.page-faq .faq-contact-dl .data-value {
  font-size: 0.9375rem;
  line-height: 1.55;
  word-break: break-word;
  color: var(--color-mist);
}
.page-faq .faq-contact-card .btn {
  margin-top: 22px;
  width: 100%;
  justify-content: center;
}
.page-faq .faq-contact-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--color-steel);
}
.page-faq .faq-icp {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-steel);
}

.page-faq .faq-related-wrap {
  position: relative;
  z-index: 1;
  margin-top: 48px;
  padding: 34px 0;
  border-top: 1px solid var(--border-color);
  background: rgba(27, 33, 64, 0.38);
}
.page-faq .faq-related {
  display: grid;
  gap: 12px;
}
@media (min-width: 820px) {
  .page-faq .faq-related {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}
.page-faq .faq-related-title {
  grid-column: 1 / -1;
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-mist);
}
.page-faq .faq-related-note {
  grid-column: 1 / -1;
  margin: 2px 0 10px;
  max-width: 62ch;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--color-steel);
}
.page-faq .faq-related-link {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--color-cyan);
  background: rgba(10, 14, 39, 0.6);
  color: var(--color-steel);
  text-decoration: none;
  font-size: 0.875rem;
  line-height: 1.7;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}
.page-faq .faq-related-link strong {
  font-weight: 700;
  color: var(--color-mist);
}
.page-faq .faq-related-link:hover,
.page-faq .faq-related-link:focus-visible {
  border-left-color: var(--color-orange);
  background: rgba(27, 33, 64, 0.92);
  color: var(--color-mist);
}