.page-faq {
  --faq-card-bg: rgba(27, 16, 53, 0.5);
  --faq-line: rgba(0, 229, 255, 0.22);
  padding-bottom: 4rem;
}

.page-faq__hero {
  position: relative;
  overflow: hidden;
  padding: 2rem 0 1.75rem;
  background:
    radial-gradient(circle at 74% 18%, rgba(255, 107, 53, 0.14), transparent 32%),
    radial-gradient(circle at 90% 78%, rgba(0, 229, 255, 0.1), transparent 26%),
    linear-gradient(148deg, var(--color-space-black) 10%, var(--color-space-navy) 46%, var(--color-space-violet) 120%);
  border-bottom: 1px solid var(--color-border);
}

.page-faq__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.055) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, #000, transparent 82%);
  pointer-events: none;
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  right: -3%;
  bottom: -1px;
  width: 38%;
  height: 26px;
  background: var(--color-accent-orange);
  clip-path: polygon(6% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.9;
  pointer-events: none;
}

.page-faq__breadcrumbs {
  margin-bottom: 2rem;
}

.page-faq__hero-copy,
.page-faq__search {
  position: relative;
  z-index: 1;
}

.page-faq__title {
  margin-top: 0.35rem;
  margin-bottom: 0.65rem;
}

.page-faq__lead {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  max-width: 34em;
  line-height: 1.75;
}

.page-faq__search {
  margin-top: 1.5rem;
}

.page-faq__search::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-65%);
  width: 0.78rem;
  height: 0.78rem;
  border: 2px solid var(--color-accent-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.page-faq__search::after {
  content: "";
  position: absolute;
  left: 1.7rem;
  top: calc(50% + 0.28rem);
  width: 0.42rem;
  height: 2px;
  background: var(--color-accent-cyan);
  transform: rotate(45deg);
  transform-origin: left center;
  pointer-events: none;
  z-index: 1;
}

.page-faq__search input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.7rem;
  background: rgba(11, 10, 26, 0.62);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-faq__search input:focus {
  outline: none;
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.16);
}

.page-faq__search input::placeholder {
  color: var(--color-text-muted);
}

.page-faq__hot {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.85rem;
  font-size: 0.865rem;
}

.page-faq__hot-label {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.page-faq__hot a {
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 1px dashed rgba(0, 229, 255, 0.4);
  padding-bottom: 1px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.page-faq__hot a:hover {
  color: var(--color-accent-cyan);
  border-color: var(--color-accent-cyan);
}

.page-faq__layout {
  padding-top: 2rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.page-faq__nav {
  min-width: 0;
}

.page-faq__content {
  min-width: 0;
}

.page-faq__nav-inner {
  background: linear-gradient(180deg, rgba(27, 16, 53, 0.88), rgba(13, 13, 26, 0.95));
  border: 1px solid var(--color-border);
  padding: 1.4rem 1.25rem;
}

.page-faq__nav-title {
  margin: 0 0 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
}

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

.page-faq__nav-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid rgba(61, 30, 109, 0.38);
  transition: border-color var(--transition-fast);
}

.page-faq__nav-item:last-child {
  border-bottom: 0;
}

.page-faq__nav-item a {
  display: block;
  padding: 0.78rem 0;
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.page-faq__nav-item a::before {
  content: "▸";
  display: inline-block;
  width: 1.1em;
  margin-right: 0.35rem;
  color: var(--color-accent-orange);
  font-size: 0.8em;
  transition: color var(--transition-fast);
}

.page-faq__nav-item a:hover {
  color: var(--color-accent-cyan);
}

.page-faq__nav-item a:hover::before {
  color: var(--color-accent-cyan);
}

.page-faq__nav-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.page-faq__nav-callout {
  margin-top: 1.4rem;
  padding: 1.1rem 1rem;
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.32);
}

.page-faq__nav-callout p {
  margin: 0 0 0.9rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.page-faq__group {
  margin-bottom: 3.5rem;
}

.page-faq__group-head {
  margin-bottom: 1.25rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--faq-line);
  position: relative;
}

.page-faq__group-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 64px;
  height: 2px;
  background: var(--color-accent-orange);
}

.page-faq__group-head h2 {
  margin: 0.35rem 0 0;
  font-size: clamp(1.45rem, 3vw, 1.8rem);
  line-height: 1.3;
}

.page-faq__items {
  display: block;
}

.page-faq__item {
  background: var(--faq-card-bg);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-space-violet);
  margin-bottom: 0.75rem;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.page-faq__item[open] {
  border-color: rgba(0, 229, 255, 0.45);
  border-left-color: var(--color-accent-cyan);
  background: rgba(27, 16, 53, 0.66);
}

.page-faq__item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 1.05rem;
  color: var(--color-text-primary);
  font-weight: 600;
  line-height: 1.5;
}

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

.page-faq__item summary::-moz-list-bullet {
  font-size: 0;
}

.page-faq__item summary::before {
  content: "Q";
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent-orange);
  border: 1px solid rgba(255, 107, 53, 0.55);
  padding: 0.12em 0.5em;
  transform: skewX(-12deg);
}

.page-faq__item summary::after {
  content: "+";
  margin-left: auto;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent-orange);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.page-faq__item[open] summary::after {
  content: "−";
  color: var(--color-accent-cyan);
}

.page-faq__answer {
  padding: 0.1rem 1.05rem 1.05rem;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-faq__answer p {
  margin: 0.55rem 0 0;
}

.page-faq__answer a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(0, 229, 255, 0.4);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.page-faq__answer a:hover {
  color: var(--color-accent-orange);
  border-color: var(--color-accent-orange);
}

.page-faq__figure {
  margin: 1.5rem 0 0;
  padding: 0.55rem;
  background: var(--color-space-black);
  border: 1px solid var(--color-border);
}

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

.page-faq__figure figcaption {
  padding: 0.6rem 0.2rem 0.1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.page-faq__contact-card {
  margin-top: 1.5rem;
  padding: 1.4rem 1.35rem;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.11), rgba(0, 229, 255, 0.06));
  border: 1px solid rgba(255, 107, 53, 0.3);
}

.page-faq__contact-card p {
  margin: 0.35rem 0 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.page-faq__contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

@media (min-width: 48rem) {
  .page-faq__hero {
    padding: 3rem 0 2.5rem;
  }

  .page-faq__hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 36%);
    gap: 2.5rem;
    align-items: end;
  }

  .page-faq__search {
    margin-top: 0;
  }

  .page-faq__layout {
    padding-top: 3rem;
    gap: 2.25rem;
  }
}

@media (min-width: 64rem) {
  .page-faq__layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 3rem;
  }

  .page-faq__nav-inner {
    position: sticky;
    top: calc(var(--header-height) + 1.25rem);
  }
}