.page-faq {
  --faq-border: #334155;
  --faq-surface: #0F172A;
  --faq-elevated: #1E293B;
  --faq-cyan-dim: rgba(0, 229, 255, 0.1);
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-low);
}

.page-faq .faq-crumb__link {
  color: var(--text-mid);
  text-decoration: none;
  transition: color 0.2s;
}

.page-faq .faq-crumb__link:hover {
  color: var(--accent-cyan);
}

.page-faq .faq-crumb__sep {
  color: var(--text-low);
}

.page-faq .faq-crumb__current {
  color: var(--text-high);
  font-weight: 600;
}

.page-faq .faq-hero {
  position: relative;
  border: 2px solid var(--faq-border);
  border-bottom: 3px solid var(--faq-border);
  background:
    linear-gradient(rgba(51, 65, 85, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51, 65, 85, 0.12) 1px, transparent 1px),
    radial-gradient(circle at 88% 18%, rgba(0, 229, 255, 0.08), transparent 46%),
    var(--bg-surface);
  background-size: 28px 28px, 28px 28px, auto, auto;
  padding: 32px 24px;
  margin-bottom: 28px;
}

.page-faq .faq-hero__content {
  max-width: 780px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 10px;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-hero__title {
  margin: 0 0 14px;
  font-size: var(--fs-h1);
  line-height: 1.2;
  color: var(--text-high);
}

.page-faq .faq-hero__desc {
  margin: 0;
  color: var(--text-mid);
  line-height: 1.7;
  font-size: 0.95rem;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--faq-border);
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 110px;
}

.page-faq .faq-hero__stat-label {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-low);
}

.page-faq .faq-hero__stat-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 600;
  line-height: 1.1;
  color: var(--accent-cyan);
}

.page-faq .faq-filter {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 8px 2px 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--faq-border) transparent;
  margin-bottom: 8px;
}

.page-faq .faq-filter__tag {
  display: inline-block;
  flex-shrink: 0;
  padding: 8px 14px;
  border: 2px solid var(--faq-border);
  background: var(--bg-surface);
  color: var(--text-mid);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.page-faq .faq-filter__tag:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: var(--bg-elevated);
}

.page-faq .faq-filter__tag:focus-visible {
  outline: 2px solid var(--accent-lime);
  outline-offset: 2px;
}

.page-faq .faq-filter__tag--all {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-faq .faq-aside {
  order: 2;
  min-width: 0;
}

.page-faq .faq-answer {
  order: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.page-faq .faq-nav {
  border: 2px solid var(--faq-border);
  background: var(--bg-surface);
  box-shadow: var(--shadow-hard);
  margin-bottom: 20px;
}

.page-faq .faq-nav__title {
  margin: 0;
  padding: 14px 16px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-low);
  border-bottom: 1px solid var(--faq-border);
}

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

.page-faq .faq-nav__item + .faq-nav__item {
  border-top: 1px solid rgba(51, 65, 85, 0.6);
}

.page-faq .faq-nav__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  color: var(--text-mid);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.4;
  transition: background 0.2s, color 0.2s;
}

.page-faq .faq-nav__link:hover {
  background: var(--faq-elevated);
  color: var(--accent-cyan);
}

.page-faq .faq-nav__num {
  flex-shrink: 0;
  min-width: 48px;
  padding: 2px 6px;
  border: 1px solid var(--faq-border);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-align: center;
  color: var(--text-mid);
  transition: border-color 0.2s, color 0.2s;
}

.page-faq .faq-nav__link:hover .faq-nav__num {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.page-faq .faq-aside__figure {
  margin: 0 0 20px;
  border: 2px solid var(--faq-border);
  background: var(--bg-surface);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-aside__figure-cap {
  padding: 10px 14px;
  border-top: 2px solid var(--faq-border);
  font-size: 0.8rem;
  color: var(--text-low);
}

.page-faq .faq-aside__support {
  border: 2px solid var(--faq-border);
  background: var(--bg-surface);
  padding: 18px;
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-aside__support-text {
  margin: 12px 0 16px;
  color: var(--text-mid);
  font-size: 0.88rem;
  line-height: 1.6;
}

.page-faq .faq-aside__support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-section {
  scroll-margin-top: 24px;
  min-width: 0;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--faq-border);
}

.page-faq .faq-section__head .sec-index {
  flex-shrink: 0;
  border: 2px solid var(--faq-border);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-low);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.page-faq .faq-section__head .sec-title {
  margin: 0;
  font-size: var(--fs-h3);
  line-height: 1.3;
  color: var(--text-high);
}

.page-faq .faq-section--panel .sec-index {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: var(--faq-cyan-dim);
}

.page-faq .faq-section--export .sec-index {
  color: var(--accent-lime);
  border-color: var(--accent-lime);
  background: rgba(191, 255, 0, 0.08);
}

.page-faq .faq-section--apple .sec-index {
  color: var(--accent-violet);
  border-color: var(--accent-violet);
  background: rgba(167, 139, 250, 0.08);
}

.page-faq .faq-section--rank .sec-index {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: var(--faq-cyan-dim);
}

.page-faq .faq-section--security .sec-index {
  color: var(--accent-lime);
  border-color: var(--accent-lime);
  background: rgba(191, 255, 0, 0.08);
}

.page-faq .faq-section:target .faq-section__head {
  border-left: 4px solid var(--accent-cyan);
  padding-left: 12px;
}

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-item {
  border: 2px solid var(--faq-border);
  background: var(--bg-surface);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.page-faq .faq-item:hover,
.page-faq .faq-item[open] {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--text-high);
  transition: background 0.2s;
}

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

.page-faq .faq-item__q:hover {
  background: var(--bg-elevated);
}

.page-faq .faq-item__no {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-low);
  transition: color 0.2s;
}

.page-faq .faq-item:hover .faq-item__no,
.page-faq .faq-item[open] .faq-item__no {
  color: var(--accent-cyan);
}

.page-faq .faq-item__text {
  flex: 1;
}

.page-faq .faq-item__q::after {
  content: "+";
  flex-shrink: 0;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1;
  color: var(--text-low);
  transition: transform 0.25s ease, color 0.2s;
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(45deg);
  color: var(--accent-cyan);
}

.page-faq .faq-item[open] .faq-item__q {
  border-bottom: 1px solid var(--faq-border);
}

.page-faq .faq-item__a {
  padding: 14px 18px 20px;
  color: var(--text-mid);
  font-size: 0.93rem;
  line-height: 1.72;
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a p + p {
  margin-top: 12px;
}

.page-faq .faq-item__a a {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

.page-faq .faq-item__a a:hover {
  color: var(--accent-lime);
}

.page-faq .faq-errors {
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px solid var(--faq-border);
  background: var(--bg-void);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
}

.page-faq .faq-errors__item {
  display: flex;
  gap: 10px;
  padding: 3px 0;
}

.page-faq .faq-errors__code {
  flex-shrink: 0;
  font-weight: 600;
  color: var(--accent-lime);
}

.page-faq .faq-security-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.page-faq .faq-security__figure {
  margin: 0;
  border: 2px solid var(--faq-border);
  background: var(--bg-surface);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-security__caption {
  padding: 10px 14px;
  border-top: 2px solid var(--faq-border);
  font-size: 0.8rem;
  color: var(--text-low);
}

@media (min-width: 768px) {
  .page-faq {
    padding: 32px 32px 80px;
  }

  .page-faq .faq-hero {
    padding: 44px 40px;
  }

  .page-faq .faq-hero__title {
    font-size: var(--fs-h1);
  }

  .page-faq .faq-hero__desc {
    font-size: 1rem;
  }

  .page-faq .faq-hero__stats {
    gap: 40px;
  }

  .page-faq .faq-filter__tag {
    padding: 9px 18px;
    font-size: 0.9rem;
  }

  .page-faq .faq-item__q {
    padding: 18px 22px;
    font-size: 1rem;
  }

  .page-faq .faq-item__a {
    padding: 16px 22px 22px;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding: 40px 48px 96px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 36px;
  }

  .page-faq .faq-aside {
    order: 1;
  }

  .page-faq .faq-answer {
    order: 2;
    gap: 48px;
  }

  .page-faq .faq-security-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
  }

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