.page-faq {
  --faq-idx-w: 250px;
  --faq-cat: var(--neon);
}

.page-faq .faq-hero {
  padding: clamp(24px, 5vw, 64px) 0 clamp(30px, 5vw, 56px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 19ch;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 48ch;
  font-family: var(--font-body);
  font-size: clamp(0.98rem, 2.4vw, 1.06rem);
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .faq-hero__side {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-top: 30px;
}

.page-faq .note--vertical {
  writing-mode: vertical-rl;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: var(--text-mute);
  margin: 0;
}

.page-faq .faq-hero__links {
  flex: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-faq .faq-hero__links li {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__links a {
  display: block;
  padding: 12px 0 12px 14px;
  font-family: var(--font-ui);
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-faq .faq-hero__links a:hover {
  color: var(--neon);
  padding-left: 18px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-index {
  border-top: 1px solid var(--line-2);
  padding-top: 14px;
}

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

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 14px;
}

.page-faq .faq-index__list a {
  display: flex;
  gap: 9px;
  align-items: baseline;
  padding: 10px 0 10px 11px;
  border-left: 2px solid transparent;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--neon);
  border-left-color: var(--neon);
  background-color: rgba(34, 225, 214, 0.05);
}

.page-faq .faq-index__num {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}

.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 24px;
  padding-top: clamp(34px, 5.5vw, 58px);
}

.page-faq .faq-group:first-child {
  padding-top: 0;
}

.page-faq .faq-group__head {
  padding-bottom: 16px;
}

.page-faq .faq-group__num {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--faq-cat);
}

.page-faq .faq-group__title {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1.16;
  color: var(--text);
}

.page-faq .faq-group__title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 12px;
  background-color: var(--faq-cat);
  transform: rotate(45deg);
  vertical-align: 0.22em;
}

.page-faq .faq-group__lead {
  margin: 8px 0 0;
  max-width: 64ch;
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-group[data-cat="neon"] { --faq-cat: var(--neon); }
.page-faq .faq-group[data-cat="amber"] { --faq-cat: var(--amber); }
.page-faq .faq-group[data-cat="steel"] { --faq-cat: var(--steel); }
.page-faq .faq-group[data-cat="violet"] { --faq-cat: var(--violet); }
.page-faq .faq-group[data-cat="moss"] { --faq-cat: var(--moss); }
.page-faq .faq-group[data-cat="clay"] { --faq-cat: var(--clay); }

.page-faq .faq-item {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 17px 34px 17px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
  transition: color 160ms var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--neon);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.page-faq .faq-item__idx {
  flex: none;
  padding-top: 3px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

.page-faq .faq-item__mark {
  position: absolute;
  right: 8px;
  top: 23px;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg);
  transition: transform 180ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark {
  transform: rotate(45deg);
}

.page-faq .faq-item__a {
  padding: 0 20px 20px 28px;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 68ch;
}

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

.page-faq .faq-item__a a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 225, 214, 0.35);
}

.page-faq .faq-item__a a:hover {
  border-bottom-color: var(--neon);
}

.page-faq .faq-key {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--neon);
  background-color: rgba(34, 225, 214, 0.09);
  padding: 1px 5px;
  border-radius: var(--radius);
}

.page-faq .faq-fig {
  margin: 20px 0 22px;
}

.page-faq .faq-fig .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-fig .media__cap {
  margin-top: 10px;
  font-family: var(--font-ui);
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--text-mute);
}

.page-faq .faq-cta {
  border-top: 1px solid var(--line);
  background-color: var(--ink-2);
  padding: clamp(38px, 7vw, 68px) 0;
}

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

.page-faq .faq-cta h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.2rem);
  line-height: 1.14;
  color: var(--text);
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 54ch;
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}

@media (min-width: 48rem) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 62rem) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-idx-w) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 26px;
    align-self: start;
  }

  .page-faq .faq-index__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero__side {
    margin-top: 8px;
    justify-content: flex-end;
  }
}