.page-faq {
  --faq-accent: var(--accent-green);
  --faq-blue: var(--accent-blue);
  --faq-bg-grid: rgba(255, 255, 255, 0.02);
  background-color: var(--bg-main);
  background-image:
    linear-gradient(var(--faq-bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-bg-grid) 1px, transparent 1px);
  background-size: 44px 44px;
  padding: 24px 0 64px;
  scroll-behavior: smooth;
}

.page-faq .container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 16px;
}

.page-faq .breadcrumb {
  margin-bottom: 20px;
}

.page-faq .page-hero {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.page-faq .page-hero::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
  margin-top: -1px;
}

.page-faq .page-hero__text {
  max-width: 680px;
}

.page-faq .page-hero h1 {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.1;
  margin: 8px 0 12px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.page-faq .page-hero__lead {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0;
  max-width: 62ch;
}

.page-faq .page-hero__img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  padding: 8px;
  filter: saturate(0.8) contrast(1.1);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-nav {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-green);
  padding: 16px;
}

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

.page-faq .faq-nav li {
  margin: 0;
}

.page-faq .faq-nav a {
  display: block;
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), background-color 0.2s var(--ease-out);
}

.page-faq .faq-nav a:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.page-faq .faq-nav a:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}

.page-faq .faq-nav__help {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.page-faq .faq-nav__help-label {
  margin: 0 0 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.page-faq .faq-content {
  min-width: 0;
  counter-reset: faq-section-count;
}

.page-faq .faq-section {
  margin: 0 0 32px;
  padding: 24px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  position: relative;
  counter-increment: faq-section-count;
}

.page-faq .faq-section::before {
  content: counter(faq-section-count, decimal-leading-zero);
  position: absolute;
  top: 12px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--accent-blue);
  opacity: 0.8;
}

.page-faq .faq-section h2 {
  font-family: var(--font-headline);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 8px;
  color: var(--text-primary);
  line-height: 1.2;
  padding-right: 48px;
}

.page-faq .faq-section__desc {
  margin: 0 0 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-faq .faq-item {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  margin-bottom: 8px;
  transition: border-color 0.25s var(--ease-out), background-color 0.25s var(--ease-out);
}

.page-faq .faq-item[open] {
  border-color: var(--accent-green);
  background: var(--bg-surface);
}

.page-faq .faq-item summary {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  padding: 14px 40px 14px 16px;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  position: relative;
  transition: color 0.2s var(--ease-out);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--accent-blue);
  transition: color 0.2s var(--ease-out), transform 0.2s var(--ease-out);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}

.page-faq .faq-item[open] summary {
  color: var(--accent-green);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--accent-green);
}

.page-faq .faq-item > p,
.page-faq .faq-item > div {
  margin: 0 16px 16px;
  padding: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-faq .faq-item[open] > p {
  animation: faq-answer 0.25s var(--ease-out);
}

.page-faq .faq-item a {
  color: var(--accent-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-item a:hover {
  color: var(--accent-green);
}

.page-faq .faq-device-img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  margin: 16px 0;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-alt);
}

.page-faq .faq-more {
  margin-top: 24px;
  padding: 16px 20px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-blue);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-faq .faq-more a {
  color: var(--accent-green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.page-faq .faq-more a:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

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

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

  .page-faq .page-hero {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-faq .page-hero__img {
    max-width: 360px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 32px;
  }

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

  .page-faq .faq-nav ul {
    display: block;
  }

  .page-faq .faq-nav li + li {
    border-top: 1px solid var(--border-subtle);
  }

  .page-faq .faq-nav a {
    border: none;
    border-left: 2px solid transparent;
    padding: 12px 8px;
  }

  .page-faq .faq-nav a:hover {
    border-left-color: var(--accent-green);
  }

  .page-faq .faq-section {
    padding: 28px 24px;
  }
}