.page-faq {
  --faq-board-line: rgba(127, 184, 212, 0.16);
  --faq-accent-soft-bg: rgba(255, 107, 44, 0.1);
  --faq-slant-glow: linear-gradient(120deg, transparent 20%, rgba(255, 107, 44, 0.18) 100%);
  position: relative;
}

.page-faq .faq-hero {
  position: relative;
  padding-top: 36px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  bottom: 12px;
  width: 3px;
  background: var(--c-accent);
  border-radius: 2px;
}

.page-faq .page-heading {
  margin-top: 28px;
}

.page-faq .page-heading h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  line-height: 1.1;
  color: var(--c-ink);
  margin: 12px 0 14px;
  letter-spacing: 0.03em;
}

.page-faq .page-leading {
  color: var(--c-mist);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 54em;
  margin: 0;
}

.page-faq .faq-board {
  margin-top: 40px;
}

.page-faq .faq-board-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-faq .faq-guide {
  position: relative;
  overflow: hidden;
  background: var(--c-panel);
  border: 1px solid var(--faq-board-line);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
}

.page-faq .faq-guide::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -30px;
  width: 190px;
  height: 140px;
  background: var(--c-glow);
  border-radius: 50%;
  filter: blur(30px);
  pointer-events: none;
}

.page-faq .faq-guide > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-guide h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--c-ink);
  margin: 14px 0 10px;
}

.page-faq .faq-guide-text {
  color: var(--c-mist);
  font-size: 0.95rem;
  line-height: 1.75;
  margin: 0 0 18px;
}

.page-faq .faq-guide-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--faq-board-line);
}

.page-faq .faq-legend {
  margin-top: 16px;
}

.page-faq .faq-legend-dot-accent {
  background: var(--c-accent) !important;
}

.page-faq .faq-legend-dot-line {
  background: var(--c-line) !important;
}

.page-faq .faq-filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 18px;
  scrollbar-width: thin;
  scrollbar-color: rgba(127, 184, 212, 0.3) transparent;
}

.page-faq .faq-filter {
  flex: 0 0 auto;
  padding: 7px 16px;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--c-mist);
  font-size: 0.92rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}

.page-faq .faq-filter.is-active {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-ink);
  font-weight: 700;
}

.page-faq .faq-filter:not(.is-active):hover {
  border-color: var(--c-accent);
  color: var(--c-accent-soft);
}

.page-faq .faq-list {
  display: grid;
  gap: 14px;
}

.page-faq .faq-item.is-filter-show {
  animation: faq-item-fade 200ms ease;
}

@keyframes faq-item-fade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  align-items: start;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-accent);
  text-align: right;
  line-height: 1.1;
  padding-top: 18px;
  user-select: none;
}

.page-faq .faq-num::after {
  content: "";
  display: block;
  width: 100%;
  height: 1px;
  background: var(--c-accent);
  opacity: 0.5;
  margin-top: 6px;
}

.page-faq .faq-details {
  position: relative;
  overflow: hidden;
  background: var(--c-panel);
  border: 1px solid var(--faq-board-line);
  border-radius: var(--radius-md);
  transition: background 200ms ease, border-color 200ms ease;
}

.page-faq .faq-details::after {
  content: "";
  position: absolute;
  top: 0;
  right: -30px;
  width: 90px;
  height: 100%;
  background: var(--faq-slant-glow);
  transform: skewX(-12deg);
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}

.page-faq .faq-details[open] {
  background: var(--c-raised);
  border-color: rgba(255, 107, 44, 0.45);
}

.page-faq .faq-details[open]::after {
  opacity: 1;
}

.page-faq .faq-details[open] summary {
  border-bottom: 1px solid var(--faq-board-line);
}

.page-faq .faq-details summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q {
  flex: 1;
  color: var(--c-ink);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-toggle {
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  position: relative;
  border-radius: 50%;
  background: var(--faq-accent-soft-bg);
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--c-accent);
  border-radius: 2px;
  transition: transform 200ms ease;
}

.page-faq .faq-toggle::before {
  width: 12px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  width: 2px;
  height: 12px;
}

.page-faq .faq-details[open] .faq-toggle::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.page-faq .faq-details[open] .faq-toggle::after {
  transform: translate(-50%, -50%) rotate(45deg);
}

.page-faq .faq-a {
  padding: 14px 16px 18px;
  color: var(--c-mist);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-a ol,
.page-faq .faq-a ul {
  margin: 0 0 12px;
  padding-left: 18px;
}

.page-faq .faq-a li {
  margin-bottom: 5px;
}

.page-faq .quick-index {
  margin-top: 40px;
}

.page-faq .quick-index-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .quick-index-text h2 {
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--c-ink);
  margin: 14px 0 10px;
}

.page-faq .quick-leading {
  color: var(--c-mist);
  font-size: 0.98rem;
  line-height: 1.8;
  margin: 0 0 18px;
}

.page-faq .quick-index-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--faq-board-line);
}

.page-faq .path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .path-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--c-panel);
  border: 1px solid var(--faq-board-line);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: transform 200ms ease, background 200ms ease;
}

.page-faq .path-item:hover {
  transform: translateX(4px);
  background: var(--c-raised);
}

.page-faq .path-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1;
  padding-top: 2px;
}

.page-faq .path-content strong {
  display: block;
  color: var(--c-ink);
  font-size: 1.02rem;
  margin-bottom: 6px;
}

.page-faq .path-content p {
  color: var(--c-mist);
  font-size: 0.93rem;
  line-height: 1.75;
  margin: 0 0 8px;
}

.page-faq .path-link {
  display: inline-block;
  color: var(--c-accent);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.3);
  transition: border-color 200ms ease, color 200ms ease;
}

.page-faq .path-link:hover {
  color: var(--c-accent-soft);
  border-bottom-color: var(--c-accent-soft);
}

.page-faq .faq-bottom {
  margin-top: 48px;
  background: linear-gradient(120deg, rgba(255, 107, 44, 0.08) 0%, rgba(127, 184, 212, 0.05) 100%);
  border-top: 1px solid var(--faq-board-line);
  border-bottom: 1px solid var(--faq-board-line);
}

.page-faq .faq-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding-top: 40px;
  padding-bottom: 40px;
  text-align: center;
}

.page-faq .faq-bottom-text {
  max-width: 720px;
  margin: 0;
  color: var(--c-mist);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-faq .faq-bottom-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

@media (min-width: 900px) {
  .page-faq .faq-board {
    background:
      linear-gradient(var(--c-grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--c-grid) 1px, transparent 1px);
    background-size: 36px 36px;
    border-top: 1px solid var(--faq-board-line);
    border-bottom: 1px solid var(--faq-board-line);
  }

  .page-faq .faq-board-inner {
    grid-template-columns: 360px 1fr;
    gap: 40px;
  }

  .page-faq .faq-guide {
    position: sticky;
    top: 120px;
    padding: 30px 28px;
  }

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

  .page-faq .faq-item-row {
    grid-template-columns: 52px 1fr;
    gap: 18px;
  }

  .page-faq .faq-num {
    font-size: 1.4rem;
    padding-top: 20px;
  }

  .page-faq .faq-q {
    font-size: 1.02rem;
  }

  .page-faq .quick-index {
    background:
      linear-gradient(var(--c-grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--c-grid) 1px, transparent 1px);
    background-size: 36px 36px;
    border-top: 1px solid var(--faq-board-line);
    border-bottom: 1px solid var(--faq-board-line);
  }

  .page-faq .quick-index-inner {
    grid-template-columns: 1fr 1.1fr;
    gap: 56px;
    align-items: center;
  }
}