.page-faq {
  --faq-round: 12px;
  --color-accent: #D7FF00;
  --color-accent-orange: #FF7A00;
  --color-bg: #0A1426;
  --color-surface: #101E34;
  --color-data: #00C2FF;
  --color-text: #F0F4F8;
  --color-text-dim: #A8B8C8;
  --color-line: #1E3A5A;
  --color-glass: rgba(255,255,255,0.06);
  --font-heading: "Archivo", "Arial Black", sans-serif;
  --font-body: "Noto Sans SC", system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-number: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --transition: 200ms ease;
  font-family: var(--font-body);
  color: var(--color-text);
  background:
    radial-gradient(circle at 82% 4%, rgba(0,194,255,0.1), transparent 42%),
    var(--color-bg);
  padding-bottom: 4rem;
}

.page-faq__hero {
  padding-top: 2rem;
  padding-bottom: 2.5rem;
  position: relative;
}

.page-faq__hero-grid {
  display: grid;
  gap: 1.75rem;
  align-items: center;
}

.page-faq__eyebrow {
  color: var(--color-accent);
  font-family: var(--font-number);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.page-faq__hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 4.6vw, 3.2rem);
  line-height: 1.12;
  margin: 0 0 1rem;
  color: var(--color-text);
  max-width: 12em;
}

.page-faq__lead {
  color: var(--color-text-dim);
  font-size: 1.0625rem;
  line-height: 1.75;
  margin-bottom: 1.75rem;
  max-width: 62ch;
}

.page-faq__search {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  max-width: 620px;
  transition: border-color var(--transition);
}

.page-faq__search:focus-within {
  border-color: var(--color-accent);
}

.page-faq__search svg {
  width: 20px;
  height: 20px;
  color: var(--color-data);
  flex-shrink: 0;
}

.page-faq__search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  width: 100%;
}

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

.page-faq__search-count {
  font-family: var(--font-number);
  font-size: 0.8125rem;
  color: var(--color-accent);
  white-space: nowrap;
}

.page-faq__hero-media img {
  width: 100%;
  height: auto;
  max-width: 420px;
  border-radius: var(--faq-round);
  border: 1px solid var(--color-line);
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--color-glass);
}

.page-faq__layout {
  display: grid;
  gap: 2rem;
  padding-top: 1rem;
}

.page-faq__index {
  order: 2;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-line);
  border-radius: var(--faq-round);
  padding: 1.25rem;
}

.page-faq__index-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  margin: 0 0 0.75rem;
  color: var(--color-text);
}

.page-faq__index ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
}

.page-faq__index a {
  color: var(--color-text-dim);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  display: block;
  transition: background var(--transition), color var(--transition);
}

.page-faq__index a:hover,
.page-faq__index a:focus-visible {
  color: var(--color-accent);
  background: var(--color-glass);
}

.page-faq__content {
  order: 1;
  display: grid;
  gap: 2.5rem;
  min-width: 0;
}

.page-faq__section {
  scroll-margin-top: 1.5rem;
}

.page-faq__section .section-head h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  margin: 0 0 0.25rem;
  color: var(--color-text);
}

.page-faq__section .section-head p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.9375rem;
}

.page-faq__section > h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  color: var(--color-data);
  margin: 1.75rem 0 0.75rem;
  border-left: 3px solid var(--color-data);
  padding-left: 0.75rem;
}

.page-faq__list {
  display: grid;
  gap: 0.75rem;
}

.page-faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--faq-round);
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition);
}

.page-faq__item[open] {
  border-color: var(--color-accent);
  background: var(--color-glass);
}

.page-faq__item summary {
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  list-style: none;
  transition: color var(--transition);
}

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

.page-faq__item summary::after {
  content: "+";
  font-family: var(--font-number);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.page-faq__item[open] summary::after {
  transform: rotate(45deg);
}

.page-faq__item summary:hover,
.page-faq__item summary:focus-visible {
  color: var(--color-accent);
}

.page-faq__answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--color-text-dim);
  line-height: 1.75;
  font-size: 0.9375rem;
  border-top: 1px solid transparent;
}

.page-faq__item[open] .page-faq__answer {
  border-top-color: var(--color-line);
  padding-top: 0.75rem;
}

.page-faq__answer a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq__account-media {
  margin: 1.25rem 0;
}

.page-faq__account-media img {
  width: 100%;
  height: auto;
  max-width: 450px;
  border-radius: var(--faq-round);
  border: 1px solid var(--color-line);
  object-fit: cover;
}

.page-faq__contact {
  background: linear-gradient(135deg, rgba(16,30,52,0.9), rgba(10,20,38,0.94));
  border: 1px solid var(--color-line);
  border-radius: calc(var(--faq-round) + 4px);
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.page-faq__contact-item {
  display: grid;
  gap: 0.25rem;
}

.page-faq__contact-label {
  font-family: var(--font-number);
  font-size: 0.8125rem;
  color: var(--color-data);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.page-faq__contact-value {
  font-size: 1.0625rem;
  color: var(--color-text);
  word-break: break-all;
}

.page-faq__contact-note {
  color: var(--color-text-dim);
  font-size: 0.9375rem;
  margin: 0;
  border-left: 3px solid var(--color-accent-orange);
  padding-left: 0.75rem;
}

.page-faq__contact .btn {
  justify-self: start;
  margin-top: 0.5rem;
}

@media (min-width: 768px) {
  .page-faq__hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .page-faq__hero-media {
    text-align: right;
  }

  .page-faq__layout {
    grid-template-columns: 240px 1fr;
    align-items: start;
  }

  .page-faq__index {
    order: 1;
    position: sticky;
    top: 1rem;
  }

  .page-faq__content {
    order: 2;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding-bottom: 6rem;
  }

  .page-faq__layout {
    grid-template-columns: 280px 1fr;
    gap: 3rem;
  }

  .page-faq__hero h1 {
    font-size: clamp(2.2rem, 4.2vw, 3.8rem);
  }

  .page-faq__contact {
    padding: 2rem;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem 2rem;
  }

  .page-faq__contact-note {
    grid-column: 1 / -1;
    max-width: 46ch;
  }
}