.page-faq {
  --faq-line: rgba(74, 144, 217, 0.10);
  --faq-rail: 250px;
  --faq-card-bg: rgba(31, 58, 95, 0.42);
  position: relative;
  padding-bottom: var(--space-8);
  background:
    linear-gradient(var(--faq-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-line) 1px, transparent 1px);
  background-size: 28px 28px;
  overflow-x: clip;
}

.page-faq .faq-banner {
  position: relative;
  padding-top: var(--space-6);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-5);
  border-bottom: 1px solid rgba(74, 144, 217, 0.30);
}

.page-faq .faq-banner::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 100%;
  background:
    repeating-linear-gradient(125deg, transparent 0 12px, rgba(57, 255, 20, 0.06) 12px 13px),
    linear-gradient(300deg, rgba(255, 122, 0, 0.10), transparent 50%);
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-faq .faq-hero-side {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-left: 3px solid var(--c-primary);
  padding-left: var(--space-3);
}

.page-faq .faq-doc-code {
  font-family: var(--font-body);
  font-size: var(--size-small);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-dim);
}

.page-faq .faq-hero-main .lead {
  margin-top: var(--space-2);
  max-width: 58ch;
}

.page-faq .faq-search {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  max-width: 620px;
  margin-top: var(--space-5);
  padding: 0.55rem 0.85rem 0.55rem 1rem;
  background: rgba(10, 26, 47, 0.82);
  border: 1px solid rgba(74, 144, 217, 0.38);
  border-radius: var(--r-md);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-faq .faq-search:focus-within {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.14), 0 0 28px rgba(57, 255, 20, 0.08);
}

.page-faq .faq-search-icon {
  flex-shrink: 0;
  color: var(--c-text-dim);
}

.page-faq .faq-search-input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  padding: 0.35rem 0;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--size-body);
  outline: none;
}

.page-faq .faq-search-input::placeholder {
  color: rgba(160, 176, 192, 0.72);
}

.page-faq .faq-search-key {
  flex-shrink: 0;
  padding: 0.1rem 0.5rem;
  border: 1px solid rgba(168, 216, 234, 0.18);
  border-radius: var(--r-sm);
  background: rgba(168, 216, 234, 0.08);
  font-family: var(--font-body);
  font-size: var(--size-small);
  color: var(--c-text-dim);
}

.page-faq .faq-layout {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.page-faq .faq-index {
  position: relative;
  z-index: 2;
  padding: var(--space-4);
  border: 1px solid rgba(168, 216, 234, 0.16);
  border-radius: var(--r-lg);
  background: rgba(31, 58, 95, 0.34);
  backdrop-filter: blur(10px);
}

.page-faq .faq-index-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-action);
  font-size: var(--size-small);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-primary);
}

.page-faq .faq-index-list {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.55rem 0.65rem;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--size-body);
  text-decoration: none;
  transition: border-color var(--transition), background-color var(--transition);
}

.page-faq .faq-index-list a:hover {
  border-left-color: var(--c-primary);
  background: rgba(57, 255, 20, 0.08);
}

.page-faq .faq-index-list a:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.page-faq .faq-index-num {
  width: 1.75rem;
  flex-shrink: 0;
  text-align: right;
  font-family: var(--font-display);
  font-size: var(--size-small);
  font-weight: 600;
  color: var(--c-text-dim);
}

.page-faq .faq-index-list a:hover .faq-index-num {
  color: var(--c-primary);
}

.page-faq .faq-index-card {
  margin-top: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(168, 216, 234, 0.14);
}

.page-faq .faq-index-card-title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-text);
}

.page-faq .faq-index-card-text {
  margin: 0 0 var(--space-3);
  font-size: var(--size-small);
  line-height: 1.65;
  color: var(--c-text-dim);
}

.page-faq .faq-content {
  display: grid;
  gap: var(--space-6);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-total-h) + var(--space-4));
}

.page-faq .faq-group-head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid rgba(74, 144, 217, 0.30);
}

.page-faq .faq-group-num {
  min-width: 2.1rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--c-primary);
}

.page-faq .faq-group-titles h2 {
  margin: 0 0 0.3rem;
  font-family: var(--font-display);
  font-size: var(--size-h2);
  font-weight: 700;
  color: var(--c-text);
}

.page-faq .faq-group-titles .text-dim {
  font-size: var(--size-small);
}

.page-faq .faq-item {
  margin-bottom: var(--space-3);
  background: var(--faq-card-bg);
  border: 1px solid rgba(168, 216, 234, 0.16);
  border-radius: var(--r-md);
  transition: border-color var(--transition), background-color var(--transition);
}

.page-faq .faq-item[open] {
  border-color: rgba(57, 255, 20, 0.35);
  background: rgba(31, 58, 95, 0.56);
}

.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 1rem 1.2rem;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-text);
  user-select: none;
}

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

.page-faq .faq-item summary:hover {
  color: var(--c-ice);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: -2px;
  border-radius: var(--r-md);
}

.page-faq .faq-q {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-item-icon {
  position: relative;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.page-faq .faq-item-icon::before,
.page-faq .faq-item-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--c-primary);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.page-faq .faq-item-icon::before {
  width: 14px;
  height: 2px;
}

.page-faq .faq-item-icon::after {
  width: 2px;
  height: 14px;
}

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

.page-faq .faq-answer {
  margin-top: 0.2rem;
  padding: 1rem 1.2rem 1.2rem;
  border-top: 1px dashed rgba(168, 216, 234, 0.18);
  color: var(--c-text-dim);
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.75;
  animation: faq-answer-in 0.35s var(--ease) both;
}

.page-faq .faq-answer p {
  margin: 0 0 0.7rem;
}

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

.page-faq .faq-answer a {
  color: var(--c-ice);
}

.page-faq .faq-answer a:hover {
  color: var(--c-primary);
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-group-media {
  max-width: 320px;
  margin: 0 0 var(--space-4);
  overflow: hidden;
  border: 1px solid rgba(168, 216, 234, 0.12);
  border-radius: var(--r-md);
  background: rgba(10, 26, 47, 0.5);
}

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

.page-faq .faq-sync-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin: 0 0 var(--space-4);
  padding: var(--space-3);
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.07), transparent 60%),
    rgba(10, 26, 47, 0.60);
  border: 1px solid rgba(57, 255, 20, 0.22);
  border-radius: var(--r-md);
}

.page-faq .faq-sync-cell {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) 0;
}

.page-faq .faq-sync-value {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1;
  color: var(--c-primary);
}

.page-faq .faq-sync-unit {
  margin-left: 0.15em;
  font-size: 0.6em;
  color: var(--c-text-dim);
}

.page-faq .faq-sync-label {
  font-size: var(--size-small);
  color: var(--c-text-dim);
}

.page-faq .faq-compat-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin: 0 0 var(--space-4);
}

.page-faq .faq-compat-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem 0.7rem;
  padding: 0.7rem 0.9rem;
  background: rgba(10, 26, 47, 0.45);
  border: 1px solid rgba(168, 216, 234, 0.12);
  border-radius: var(--r-sm);
}

.page-faq .faq-compat-ver {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-text);
}

.page-faq .faq-compat-note {
  margin-left: auto;
  font-family: var(--font-body);
  font-size: var(--size-small);
  color: var(--c-text-dim);
}

.page-faq .faq-footer-note {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(74, 144, 217, 0.20);
}

.page-faq .faq-footer-note a {
  color: var(--c-ice);
}

.page-faq .faq-feedback-img {
  display: block;
  max-width: 200px;
  width: 100%;
  height: auto;
  margin-top: 0.9rem;
  border: 1px solid rgba(168, 216, 234, 0.14);
  border-radius: var(--r-sm);
  object-fit: cover;
}

@media (min-width: 720px) {
  .page-faq .faq-hero {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .page-faq .faq-sync-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-sync-cell {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .page-faq .faq-compat-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-compat-note {
    margin-left: 0;
    width: 100%;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-total-h) + var(--space-4));
  }

  .page-faq .faq-answer {
    padding-left: 2rem;
  }
}