.page-faq {
  --faq-line: rgba(0, 229, 255, 0.18);
  --faq-card-bg: rgba(242, 245, 247, 0.03);
  --faq-space: clamp(3rem, 8vw, 5.5rem);
  color: var(--color-white);
}

.page-faq [id] {
  scroll-margin-top: 80px;
}

.page-faq__header {
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.page-faq__hero {
  display: grid;
  gap: 1.4rem;
  margin-top: 2.5rem;
}

.page-faq__hero-index {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-faq__hero-index .chapter-index {
  color: var(--color-acid);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
}

.page-faq__hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: 0.012em;
  max-width: 14em;
  margin: 0;
}

.page-faq__hero .lede {
  margin: 0;
  max-width: 46em;
  color: var(--color-gray);
  font-size: clamp(0.95rem, 1.3vw, 1.06rem);
  line-height: 1.8;
}

.page-faq__quick-index {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq__quick-index a {
  color: var(--color-gray);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--font-body);
  transition: color 0.25s ease;
}

.page-faq__quick-index a span {
  font-family: var(--font-data);
  color: var(--color-cyan);
  margin-right: 0.3rem;
}

.page-faq__quick-index a:hover {
  color: var(--color-acid);
}

.page-faq__filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.4rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq__filter-label {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--color-cyan);
  text-transform: uppercase;
  margin-right: 0.5rem;
}

.page-faq__filter .filter-btn {
  border: 1px solid var(--faq-line);
  background: transparent;
  color: var(--color-gray);
  font-family: var(--font-body);
  font-size: 0.82rem;
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.page-faq__filter .filter-btn.is-active,
.page-faq__filter .filter-btn:hover {
  border-color: var(--color-acid);
  color: var(--color-acid);
  background: rgba(200, 245, 66, 0.08);
}

.page-faq__hot {
  padding-top: var(--faq-space);
}

.page-faq__hot-grid {
  display: grid;
  gap: 2rem;
}

.page-faq__hot-info {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-faq__hot-info .chapter-index {
  color: var(--color-cyan);
}

.page-faq__hot-info h2,
.page-faq__section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.1;
  margin: 0;
}

.page-faq__hot-info p {
  color: var(--color-gray);
  line-height: 1.7;
  font-size: 0.95rem;
  margin: 0;
}

.page-faq__hot-link {
  justify-self: start;
  margin-top: 0.4rem;
}

.page-faq__hot-list {
  display: grid;
  gap: 0.7rem;
}

.page-faq__q-item {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-line);
  border-radius: 0;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-faq__q-item[open] {
  border-color: rgba(0, 229, 255, 0.45);
  background: rgba(242, 245, 247, 0.05);
}

.page-faq__q-item summary {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 1.2rem;
  position: relative;
}

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

.page-faq__q-item summary::marker {
  content: "";
}

.page-faq__q-no {
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--color-acid);
  flex: 0 0 auto;
  line-height: 1;
}

.page-faq__q-text {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-white);
  font-size: 0.95rem;
  line-height: 1.45;
  padding-right: 0.5rem;
}

.page-faq__q-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 1.15rem;
  color: var(--color-cyan);
  flex: 0 0 auto;
}

.page-faq__q-item[open] summary::after {
  content: "–";
}

.page-faq__q-answer {
  padding: 0 1.2rem 1.2rem;
  color: var(--color-gray);
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-faq__q-answer p {
  margin: 0.2rem 0 0.6rem;
}

.page-faq__q-answer ol {
  margin: 0.6rem 0 0;
  padding-left: 1.3rem;
  display: grid;
  gap: 0.4rem;
}

.page-faq__q-answer code {
  font-family: var(--font-data);
  color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.08);
  padding: 0.1rem 0.35rem;
}

.page-faq__q-answer a {
  color: var(--color-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq__q-answer a:hover {
  color: var(--color-acid);
  border-color: var(--color-acid);
}

.page-faq__section-head {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-faq__section-head--center {
  text-align: center;
  justify-items: center;
}

.page-faq__section-head .chapter-index {
  color: var(--color-acid);
  justify-self: start;
}

.page-faq__section-head--center .chapter-index {
  justify-self: center;
}

.page-faq__section-head .lede {
  color: var(--color-gray);
  max-width: 40em;
  line-height: 1.7;
  margin: 0;
}

.page-faq__version {
  margin-top: var(--faq-space);
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}

.page-faq__version-grid {
  display: grid;
  gap: 2rem;
}

.page-faq__version-media .media-frame {
  border: 1px solid var(--faq-line);
  padding: 0.6rem;
}

.page-faq__version-media .media-frame--tall {
  aspect-ratio: auto;
}

.page-faq__version-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__version-media .exhibit-label {
  display: block;
  margin-top: 0.8rem;
  color: rgba(242, 245, 247, 0.72);
  text-align: right;
}

.page-faq__version-cards {
  display: grid;
  gap: 1rem;
}

.page-faq__version-card {
  background: rgba(242, 245, 247, 0.05);
  border: 1px solid rgba(242, 245, 247, 0.15);
  padding: 1.5rem;
}

.page-faq__version-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0.8rem 0 0.5rem;
}

.page-faq__version-card p {
  margin: 0;
  color: rgba(242, 245, 247, 0.72);
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-faq__version-tag {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--color-acid);
  text-transform: uppercase;
}

.page-faq__version-card--offset {
  margin-left: 0.75rem;
}

.page-faq__export {
  padding-top: var(--faq-space);
  padding-bottom: var(--faq-space);
}

.page-faq__steps {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.page-faq__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.4rem;
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-line);
  align-items: start;
}

.page-faq__step-no {
  font-family: var(--font-data);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-acid);
  line-height: 1;
}

.page-faq__step h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.4rem;
}

.page-faq__step p {
  color: var(--color-gray);
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-faq__export-note {
  margin-top: 1.5rem;
  padding: 1.2rem 1.4rem;
  border-left: 3px solid var(--color-acid);
  background: rgba(200, 245, 66, 0.06);
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(242, 245, 247, 0.85);
}

.page-faq__export-note strong {
  color: var(--color-acid);
  font-family: var(--font-data);
  font-weight: 700;
}

.page-faq__favorite {
  margin-top: var(--faq-space);
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}

.page-faq__favorite-grid {
  display: grid;
  gap: 2rem;
}

.page-faq__favorite-text {
  color: rgba(242, 245, 247, 0.78);
  display: grid;
  gap: 1rem;
  align-content: start;
  font-size: 0.96rem;
  line-height: 1.75;
  margin: 0;
}

.page-faq__favorite-text p {
  margin: 0;
}

.page-faq__favorite-cards {
  display: grid;
  gap: 0.7rem;
}

.page-faq__other {
  padding-top: var(--faq-space);
  padding-bottom: var(--faq-space);
}

.page-faq__other-grid {
  display: grid;
  gap: 0.8rem;
  margin-top: 2rem;
}

.page-faq__contact {
  padding-bottom: var(--faq-space);
}

.page-faq__contact-inner {
  display: grid;
  gap: 2rem;
  padding: 2rem 1.5rem;
  border: 1px solid var(--faq-line);
  background:
    linear-gradient(135deg, rgba(200, 245, 66, 0.05), transparent 40%),
    var(--faq-card-bg);
}

.page-faq__contact-media .media-frame {
  border: 1px solid var(--faq-line);
  padding: 0.5rem;
}

.page-faq__contact-media .media-frame {
  aspect-ratio: auto;
}

.page-faq__contact-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__contact-content {
  display: grid;
  gap: 1rem;
  align-content: center;
}

.page-faq__contact-content .chapter-index {
  color: var(--color-cyan);
  justify-self: start;
}

.page-faq__contact-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin: 0;
}

.page-faq__contact-content p {
  color: var(--color-gray);
  font-size: 0.96rem;
  line-height: 1.75;
  margin: 0;
}

.page-faq__contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 0.4rem;
}

@media (min-width: 760px) {
  .page-faq__hot-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq__version-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq__version-cards {
    padding-top: 2rem;
  }

  .page-faq__version-card--offset {
    margin-left: 2rem;
  }

  .page-faq__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-faq__favorite-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq__favorite-cards {
    padding-top: 2.5rem;
  }

  .page-faq__other-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    align-items: start;
  }

  .page-faq__contact-inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 3rem;
    padding: 2.5rem 3rem;
    align-items: center;
  }
}