.page-faq {
  --faq-gap: clamp(16px, 2.5vw, 26px);
  --faq-radius: 26px;
  background-color: var(--c-bg-deep);
  color: var(--c-text);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
  position: relative;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq::after {
  content: "";
  position: absolute;
  top: 120px;
  right: -120px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.18), transparent 70%);
  filter: blur(30px);
  pointer-events: none;
  z-index: 0;
}

.page-faq__shell {
  position: relative;
  z-index: 1;
}

.page-faq__crumb {
  padding: 22px 0 0;
}

.page-faq__hero {
  padding-top: clamp(28px, 5vw, 52px);
  position: relative;
}

.page-faq__hero-grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq__kicker {
  font-family: var(--font-mono);
  color: var(--c-neon);
  letter-spacing: 0.08em;
}

.page-faq__title {
  font-family: var(--font-head);
  font-size: clamp(44px, 9vw, 100px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 8px 0 12px;
}

.page-faq__title-dot {
  color: var(--c-primary);
}

.page-faq__lead {
  color: var(--c-muted);
  font-size: clamp(16px, 2.4vw, 18px);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 0 28px;
}

.page-faq__search {
  position: relative;
  max-width: 560px;
}

.page-faq__search-input {
  width: 100%;
  height: 56px;
  background: var(--c-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 0 48px 0 22px;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

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

.page-faq__search-input:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.18);
}

.page-faq__search-icon {
  position: absolute;
  right: 18px;
  top: 18px;
  color: var(--c-primary);
  pointer-events: none;
}

.page-faq__speedline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq__hero-visual {
  position: relative;
}

.page-faq__hero-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--c-card);
  position: relative;
  max-width: 320px;
}

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

.page-faq__hero-live {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(6, 10, 18, 0.78);
  backdrop-filter: blur(8px);
  color: var(--c-neon);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(57, 255, 20, 0.28);
}

.page-faq__toc {
  margin-top: 28px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 6px;
}

.page-faq__toc-card {
  display: flex;
  gap: 10px;
  width: max-content;
  background: var(--c-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 8px 12px;
}

.page-faq__toc-link {
  color: var(--c-muted);
  white-space: nowrap;
}

.page-faq__toc-link:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
}

.page-faq__groups {
  margin-top: clamp(32px, 5vw, 64px);
  display: grid;
  gap: var(--faq-gap);
}

.page-faq__group {
  background: var(--c-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(18px, 3vw, 30px);
  position: relative;
  overflow: hidden;
}

.page-faq__group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 8px;
  height: 100%;
  background: var(--grad-brand);
  opacity: 0.7;
}

.page-faq__group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.page-faq__group-icon {
  width: 52px;
  height: 52px;
  flex: none;
  border-radius: 16px;
  background: var(--grad-brand);
  color: var(--c-bg-deep);
  display: grid;
  place-items: center;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.25);
}

.page-faq__group-label {
  font-family: var(--font-mono);
  color: var(--c-primary);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-faq__group-title {
  font-family: var(--font-head);
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
  color: var(--c-text);
}

.page-faq__group-count {
  margin-left: auto;
}

.page-faq__qalist {
  margin-top: 10px;
}

.page-faq__qa {
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.page-faq__qa:last-of-type {
  border-bottom: 0;
}

.page-faq__qa-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--dur) var(--ease);
}

.page-faq__qa-q::-webkit-details-marker {
  display: none;
}

.page-faq__qa-q:hover {
  background-color: rgba(0, 229, 255, 0.04);
}

.page-faq__qa-num {
  font-family: var(--font-mono);
  color: var(--c-primary);
  font-size: 13px;
  margin-top: 4px;
  flex: none;
}

.page-faq__qa-title {
  font-family: var(--font-head);
  font-size: clamp(16px, 2.6vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  margin: 0;
  flex: 1;
}

.page-faq__qa-toggle {
  position: relative;
  width: 24px;
  height: 24px;
  flex: none;
  margin-top: 2px;
}

.page-faq__qa-toggle::before,
.page-faq__qa-toggle::after {
  content: "";
  position: absolute;
  background: var(--c-primary);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease);
}

.page-faq__qa-toggle::before {
  width: 15px;
  height: 2px;
  top: 11px;
  left: 4px;
}

.page-faq__qa-toggle::after {
  width: 2px;
  height: 15px;
  top: 4px;
  left: 11px;
}

.page-faq__qa[open] .page-faq__qa-toggle::after {
  transform: scaleY(0);
}

.page-faq__qa[open] .page-faq__qa-toggle::before {
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
}

.page-faq__qa-a {
  padding: 0 0 22px 34px;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.7;
  max-width: 720px;
}

.page-faq__qa-a p {
  margin: 0 0 14px;
}

.page-faq__qa-link {
  margin-top: 4px;
}

.page-faq__contact {
  margin-top: clamp(40px, 6vw, 72px);
  border-radius: var(--radius-lg);
  background: var(--grad-brand);
  color: var(--c-bg-deep);
  padding: clamp(26px, 4vw, 44px);
  position: relative;
  overflow: hidden;
}

.page-faq__contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(115deg, rgba(255, 255, 255, 0.14) 0%, transparent 30%),
    repeating-linear-gradient(45deg, transparent 0 18px, rgba(6, 10, 18, 0.06) 18px 20px);
  pointer-events: none;
}

.page-faq__contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
}

.page-faq__contact-label {
  color: var(--c-bg-deep);
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-faq__contact-title {
  font-family: var(--font-head);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.2;
  margin: 10px 0 8px;
}

.page-faq__contact-desc {
  font-size: 16px;
  line-height: 1.7;
  opacity: 0.88;
  margin: 0 0 18px;
}

.page-faq__contact-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(6, 10, 18, 0.12);
  border-radius: 16px;
  padding: 14px 16px;
}

.page-faq__copy-btn {
  background: var(--c-bg-deep);
  color: var(--c-primary);
  border: 2px solid transparent;
}

.page-faq__copy-btn:hover {
  background: var(--c-bg);
  border-color: var(--c-primary);
}

.page-faq__contact-figure {
  margin: 0;
}

.page-faq__contact-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 800px;
  border-radius: 18px;
  object-fit: cover;
  mix-blend-mode: multiply;
  opacity: 0.92;
}

.page-faq__contact-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  opacity: 0.8;
  margin-top: 8px;
}

@media (min-width: 720px) {
  .page-faq__hero-grid {
    grid-template-columns: 1fr 320px;
    align-items: center;
  }

  .page-faq__hero-card {
    margin-left: auto;
  }

  .page-faq__groups {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-faq__contact-grid {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
  }
}

@media (min-width: 1100px) {
  .page-faq__hero {
    padding-top: clamp(40px, 6vw, 68px);
  }

  .page-faq__hero-content {
    padding-right: 20px;
  }

  .page-faq__groups {
    gap: 24px;
  }

  .page-faq__group {
    padding: 28px 32px;
  }

  .page-faq__qa-a {
    font-size: 16px;
  }
}