.page-faq {
  --faq-index-w: 250px;
  --faq-tab-h: 44px;
  --faq-sticky-offset: calc(var(--header-h-desktop) + 24px);
  padding-bottom: 4rem;
}

.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.page-faq .faq-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.page-faq .faq-breadcrumb a:hover {
  color: var(--accent);
}

.page-faq .faq-breadcrumb-sep {
  color: rgba(245, 179, 1, 0.6);
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 2rem;
  align-items: center;
  padding-top: 2.5rem;
  padding-bottom: 3.5rem;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -18%;
  top: -30%;
  width: 60%;
  height: 150%;
  background: linear-gradient(135deg, rgba(27, 58, 95, 0.45), rgba(10, 30, 60, 0) 72%);
  transform: skewX(-10deg);
  z-index: 0;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-green) 100%);
  opacity: 0.7;
  z-index: 1;
}

.page-faq .faq-hero-info,
.page-faq .faq-hero-media {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-info h1 {
  margin: 0.75rem 0 1rem;
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  font-weight: 700;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.page-faq .faq-hero-desc {
  max-width: 34em;
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero-links a {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 179, 1, 0.4);
  padding-bottom: 0.125rem;
  transition: color var(--transition), border-color var(--transition);
}

.page-faq .faq-hero-links a:hover {
  color: var(--accent-light);
  border-color: var(--accent-light);
}

.page-faq .faq-hero-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(245, 179, 1, 0.28);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-browser {
  margin-top: 1rem;
}

.page-faq .faq-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  overflow: hidden;
  opacity: 0;
}

.page-faq .faq-tabbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 0.625rem;
  background: rgba(27, 58, 95, 0.35);
  border: 1px solid rgba(227, 238, 247, 0.1);
  border-radius: var(--radius-pill);
}

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: rgba(16, 42, 72, 0.65);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: var(--font-body);
  font-weight: 400;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.page-faq .faq-tab:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

.page-faq #tab-all:checked ~ .faq-tabbar label[for="tab-all"],
.page-faq #tab-account:checked ~ .faq-tabbar label[for="tab-account"],
.page-faq #tab-counter:checked ~ .faq-tabbar label[for="tab-counter"],
.page-faq #tab-cwc:checked ~ .faq-tabbar label[for="tab-cwc"],
.page-faq #tab-sub:checked ~ .faq-tabbar label[for="tab-sub"],
.page-faq #tab-data:checked ~ .faq-tabbar label[for="tab-data"],
.page-faq #tab-contact:checked ~ .faq-tabbar label[for="tab-contact"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #0A1E3C;
  font-weight: 700;
  box-shadow: var(--shadow-glow);
}

.page-faq #tab-all:focus-visible ~ .faq-tabbar label[for="tab-all"],
.page-faq #tab-account:focus-visible ~ .faq-tabbar label[for="tab-account"],
.page-faq #tab-counter:focus-visible ~ .faq-tabbar label[for="tab-counter"],
.page-faq #tab-cwc:focus-visible ~ .faq-tabbar label[for="tab-cwc"],
.page-faq #tab-sub:focus-visible ~ .faq-tabbar label[for="tab-sub"],
.page-faq #tab-data:focus-visible ~ .faq-tabbar label[for="tab-data"],
.page-faq #tab-contact:focus-visible ~ .faq-tabbar label[for="tab-contact"] {
  outline: 2px solid var(--accent-light);
  outline-offset: 3px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.page-faq .faq-index {
  position: relative;
  top: auto;
  padding: 1rem 1.25rem;
  background: rgba(16, 42, 72, 0.72);
  border: 1px solid rgba(227, 238, 247, 0.12);
  border-radius: var(--radius-md);
}

.page-faq .faq-index-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-faq .faq-index-list {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.375rem;
  scrollbar-width: thin;
}

.page-faq .faq-index-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(10, 30, 60, 0.55);
  border: 1px solid transparent;
  color: var(--text-primary);
  font-size: 0.8125rem;
  text-decoration: none;
  transition: border-color var(--transition), color var(--transition);
}

.page-faq .faq-index-item:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent);
}

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

.page-faq .faq-group {
  margin-bottom: 2.75rem;
  animation: faqFadeIn 0.35s ease both;
}

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-heading);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.page-faq .faq-group-title::before {
  content: "";
  flex-shrink: 0;
  width: 4px;
  height: 1.4em;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-green));
}

.page-faq .faq-group-title::after {
  content: "";
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, rgba(245, 179, 1, 0.45), transparent);
}

.page-faq .faq-item {
  margin-bottom: 0.75rem;
  border: 1px solid rgba(227, 238, 247, 0.14);
  border-radius: var(--radius-md);
  background: rgba(16, 42, 72, 0.6);
  overflow: hidden;
  scroll-margin-top: var(--faq-sticky-offset);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-faq .faq-item[open] {
  border-color: rgba(245, 179, 1, 0.5);
  box-shadow: 0 0 0 1px rgba(245, 179, 1, 0.12), var(--shadow-card);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--text-primary);
  user-select: none;
}

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

.page-faq .faq-item summary:hover .faq-item-text {
  color: var(--accent-light);
}

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

.page-faq .faq-item-num {
  flex-shrink: 0;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(245, 179, 1, 0.3);
  background: rgba(245, 179, 1, 0.08);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}

.page-faq .faq-item-text {
  flex: 1;
  transition: color var(--transition);
}

.page-faq .faq-item-icon {
  position: relative;
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  margin-top: 0.25rem;
}

.page-faq .faq-item-icon::before,
.page-faq .faq-item-icon::after {
  content: "";
  position: absolute;
  background: var(--accent);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.page-faq .faq-item-icon::before {
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-item-icon::after {
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .faq-item[open] .faq-item-icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.page-faq .faq-item-body {
  padding: 0 1.25rem 1.25rem calc(1.25rem + 1.875rem);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.page-faq .faq-item-body p {
  margin: 0 0 0.5rem;
}

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

.page-faq .faq-data-figure {
  margin: 1.5rem 0 1.5rem;
  padding: 1.25rem;
  background: rgba(10, 30, 60, 0.45);
  border: 1px dashed rgba(0, 255, 157, 0.25);
  border-radius: var(--radius-md);
}

.page-faq .faq-data-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
}

.page-faq .faq-data-figure figcaption {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-green);
}

.page-faq .faq-fallback {
  margin-top: 3rem;
  padding: 2.5rem 1.5rem;
  text-align: center;
  border: 1px solid rgba(245, 179, 1, 0.4);
  border-radius: var(--radius-lg);
  background:
    repeating-linear-gradient(45deg, rgba(245, 179, 1, 0.04) 0 8px, transparent 8px 16px),
    linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  box-shadow: var(--shadow-card);
}

.page-faq .faq-fallback-title {
  margin: 0.75rem 0 0.5rem;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--text-primary);
}

.page-faq .faq-fallback-desc {
  max-width: 28em;
  margin: 0 auto;
  color: var(--text-muted);
  line-height: 1.75;
}

.page-faq .faq-fallback-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-faq #tab-account:checked ~ .faq-layout .faq-group:not([data-faq-group="account"]),
.page-faq #tab-counter:checked ~ .faq-layout .faq-group:not([data-faq-group="counter"]),
.page-faq #tab-cwc:checked ~ .faq-layout .faq-group:not([data-faq-group="cwc"]),
.page-faq #tab-sub:checked ~ .faq-layout .faq-group:not([data-faq-group="sub"]),
.page-faq #tab-data:checked ~ .faq-layout .faq-group:not([data-faq-group="data"]),
.page-faq #tab-contact:checked ~ .faq-layout .faq-group:not([data-faq-group="contact"]) {
  display: none;
}

.page-faq #tab-account:checked ~ .faq-layout .faq-index-item:not([data-index-group="account"]),
.page-faq #tab-counter:checked ~ .faq-layout .faq-index-item:not([data-index-group="counter"]),
.page-faq #tab-cwc:checked ~ .faq-layout .faq-index-item:not([data-index-group="cwc"]),
.page-faq #tab-sub:checked ~ .faq-layout .faq-index-item:not([data-index-group="sub"]),
.page-faq #tab-data:checked ~ .faq-layout .faq-index-item:not([data-index-group="data"]),
.page-faq #tab-contact:checked ~ .faq-layout .faq-index-item:not([data-index-group="contact"]) {
  display: none;
}

@media (min-width: 768px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2.5rem;
  }

  .page-faq .faq-fallback {
    padding: 3.5rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 2.5rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-offset);
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 0.375rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index-item {
    border-radius: var(--radius-sm);
    padding: 0.4375rem 0.75rem;
  }

  .page-faq .faq-tabbar {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}