.page-faq {
  --faq-sidebar-w: 280px;
  --faq-shadow-deep: 10px 10px 0 #05081a;
  --faq-glow: rgba(57, 255, 20, 0.22);
  --faq-line: #26335c;
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-height) + 48px) 0 var(--space-5);
  background: linear-gradient(180deg, rgba(10, 14, 39, 0.65) 0%, rgba(15, 26, 58, 0.15) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -40px;
  width: 56%;
  height: 190px;
  background: linear-gradient(115deg, transparent 0%, rgba(57, 255, 20, 0.1) 42%, rgba(255, 107, 53, 0.16) 100%);
  clip-path: polygon(18% 0, 100% 0, 78% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-faq .faq-hero__content .breadcrumb {
  margin-bottom: var(--space-4);
}

.page-faq .faq-hero__kicker {
  font-family: var(--font-data);
  color: var(--color-neon);
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 var(--space-2);
}

.page-faq .faq-hero__title {
  font-family: var(--font-headline);
  font-size: clamp(2.3rem, 6vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-3);
  color: var(--color-text-primary);
}

.page-faq .faq-hero__subtitle {
  font-size: clamp(1.05rem, 2.4vw, 1.5rem);
  font-weight: 700;
  margin: 0 0 var(--space-3);
  color: var(--color-accent);
}

.page-faq .faq-hero__desc {
  max-width: 62ch;
  margin: 0;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.page-faq .faq-hero__panel {
  align-self: end;
  position: relative;
  border: 2px solid var(--color-border-glow);
  background: rgba(10, 14, 39, 0.72);
  padding: var(--space-4);
  box-shadow: 8px 8px 0 rgba(5, 8, 26, 0.6);
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 64px;
  height: 4px;
  background: var(--color-neon);
}

.page-faq .faq-hero__panel-title {
  font-family: var(--font-data);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-3);
}

.page-faq .faq-hero__stats {
  display: grid;
  gap: var(--space-3);
  margin: 0;
}

.page-faq .faq-hero__stats div {
  border-left: 3px solid var(--color-neon);
  padding-left: var(--space-2);
}

.page-faq .faq-hero__stats dt {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.page-faq .faq-hero__stats dd {
  font-family: var(--font-data);
  font-size: 1.55rem;
  line-height: 1.1;
  color: var(--color-neon);
  margin: 0;
}

.page-faq .version-guide {
  padding: var(--space-5) 0 var(--space-4);
}

.page-faq .version-guide__inner {
  border: 3px solid var(--color-accent);
  background: linear-gradient(135deg, #142145 0%, #0f1a3a 100%);
  padding: var(--space-4);
  box-shadow: var(--faq-shadow-deep);
  position: relative;
}

.page-faq .version-guide__inner::before {
  content: "v4.2";
  position: absolute;
  top: -1px;
  right: -1px;
  font-family: var(--font-data);
  color: var(--color-bg-dark);
  background: var(--color-neon);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  padding: 6px 14px 6px 12px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 12% 100%);
}

.page-faq .version-guide__head {
  margin-bottom: var(--space-4);
}

.page-faq .version-guide__title {
  font-family: var(--font-headline);
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  margin: var(--space-2) 0 var(--space-1);
  color: var(--color-text-primary);
  line-height: 1.05;
}

.page-faq .version-guide__lead {
  color: var(--color-text-secondary);
  margin: 0;
  max-width: 56ch;
}

.page-faq .version-guide__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

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

.page-faq .version-guide__step {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-glow);
}

.page-faq .version-guide__step:last-child {
  border-bottom: 0;
}

.page-faq .version-guide__num {
  font-family: var(--font-data);
  font-size: 1.5rem;
  color: var(--color-neon);
  border: 2px solid var(--color-neon);
  background: var(--color-bg-dark);
  padding: 3px 10px;
  line-height: 1.2;
  flex-shrink: 0;
  height: fit-content;
}

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

.page-faq .version-guide__step-body h3 {
  font-size: 1.05rem;
  margin: 0 0 4px;
  color: var(--color-text-primary);
}

.page-faq .version-guide__step-body p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-faq .version-guide__media {
  margin: 0;
}

.page-faq .version-guide__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--color-border-glow);
  background: var(--color-bg-dark);
}

.page-faq .version-guide__media figcaption {
  margin-top: var(--space-2);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.page-faq .acc-guide {
  margin-top: var(--space-4);
  border: 2px solid rgba(255, 107, 53, 0.35);
  background: rgba(10, 14, 39, 0.55);
}

.page-faq .acc-guide summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  font-weight: 700;
  color: var(--color-accent);
}

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

.page-faq .acc-guide summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

.page-faq .acc-guide[open] {
  border-color: var(--color-accent);
  box-shadow: 0 0 24px rgba(255, 107, 53, 0.18);
}

.page-faq .acc-guide[open] summary::after {
  content: "−";
}

.page-faq .acc-guide ul {
  margin: 0;
  padding: 0 var(--space-4) var(--space-3);
  display: grid;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.page-faq .version-guide__note {
  margin: var(--space-4) 0 0;
  color: var(--color-neon);
  font-weight: 600;
  font-size: 0.92rem;
  border-left: 3px solid var(--color-neon);
  padding-left: var(--space-2);
}

.page-faq .faq-main {
  padding: var(--space-5) 0 var(--space-6);
}

.page-faq .faq-main__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5) var(--space-4);
}

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

.page-faq .faq-catalog__card {
  border: 2px solid var(--color-border-glow);
  background: rgba(20, 33, 69, 0.5);
  padding: var(--space-4);
  position: relative;
}

.page-faq .faq-catalog__card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 50%;
  height: 4px;
  background: var(--color-accent);
}

.page-faq .faq-catalog__kicker {
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-neon);
  margin: 0 0 var(--space-2);
}

.page-faq .faq-catalog__card h2 {
  font-family: var(--font-headline);
  font-size: 1.4rem;
  margin: 0;
  color: var(--color-text-primary);
}

.page-faq .faq-catalog__list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
}

.page-faq .faq-catalog__list li + li {
  border-top: 1px solid rgba(170, 184, 208, 0.16);
}

.page-faq .faq-catalog__list a {
  display: block;
  color: var(--color-text-primary);
  padding: 12px 4px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-catalog__list a:hover,
.page-faq .faq-catalog__list a:focus-visible {
  color: var(--color-neon);
  background: rgba(57, 255, 20, 0.08);
}

.page-faq .faq-catalog__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--space-4);
}

.page-faq .faq-catalog__quick span {
  width: 100%;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
}

.page-faq .faq-catalog__quick a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-glow);
  padding: 6px 10px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-catalog__quick a:hover,
.page-faq .faq-catalog__quick a:focus-visible {
  color: var(--color-neon);
  border-color: var(--color-neon);
  background: rgba(57, 255, 20, 0.08);
}

.page-faq .faq-catalog__contact {
  margin-top: var(--space-4);
  border: 2px dashed var(--color-accent);
  padding: var(--space-3);
  background: rgba(10, 14, 39, 0.4);
}

.page-faq .faq-catalog__contact p {
  margin: 0 0 var(--space-2);
  color: var(--color-text-primary);
  font-weight: 700;
}

.page-faq .faq-catalog__contact .btn {
  margin-top: var(--space-2);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-height) + 16px);
  min-width: 0;
  padding-top: var(--space-4);
  border-top: 3px solid var(--color-neon);
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--space-5);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.page-faq .faq-group__head svg {
  color: var(--color-neon);
  flex-shrink: 0;
}

.page-faq .faq-group__index {
  font-family: var(--font-data);
  font-size: 1.15rem;
  color: var(--color-neon);
  border: 2px solid var(--color-border-glow);
  background: var(--color-bg-dark);
  padding: 4px 10px;
}

.page-faq .faq-group__head h2 {
  font-family: var(--font-headline);
  font-size: 1.3rem;
  margin: 0;
  color: var(--color-text-primary);
}

.page-faq .faq-item {
  border: 2px solid var(--faq-line);
  background: rgba(20, 33, 69, 0.55);
  margin-bottom: var(--space-3);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.page-faq .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  color: var(--color-text-primary);
}

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

.page-faq .faq-item__q {
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-item__icon {
  color: var(--color-neon);
  font-size: 1.35rem;
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1;
  transition: transform 0.2s ease;
}

.page-faq .faq-item[open] {
  border-color: var(--color-neon);
  background: rgba(15, 26, 58, 0.8);
  box-shadow: 0 0 22px var(--faq-glow);
}

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

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

.page-faq .faq-item__a {
  padding: 0 var(--space-3) var(--space-3);
  color: var(--color-text-secondary);
  line-height: 1.75;
}

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

.page-faq .faq-group__figure {
  margin: var(--space-4) 0 0;
  border: 2px solid var(--color-border-glow);
  background: var(--color-bg-dark);
  padding: var(--space-2);
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-group__figure figcaption {
  margin-top: var(--space-2);
  padding: 0 var(--space-1) var(--space-1);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  border-bottom: 2px solid var(--color-accent);
}

.page-faq .faq-assist {
  margin-top: var(--space-5);
  border: 3px solid var(--color-border-glow);
  background: linear-gradient(135deg, rgba(57, 255, 20, 0.06) 0%, rgba(255, 107, 53, 0.08) 100%);
  padding: var(--space-4);
  box-shadow: var(--faq-shadow-deep);
}

.page-faq .faq-assist h2 {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  margin: 0 0 var(--space-2);
  color: var(--color-text-primary);
}

.page-faq .faq-assist p {
  margin: 0 0 var(--space-3);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 68ch;
}

.page-faq .faq-assist__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
  }

  .page-faq .version-guide__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .version-guide__inner {
    padding: var(--space-5);
  }

  .page-faq .acc-guide ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-item__a {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-main__grid {
    grid-template-columns: var(--faq-sidebar-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-catalog {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }

  .page-faq .faq-main {
    padding-top: var(--space-6);
  }
}