.page-faq {
  --faq-accent: #F1C40F;
  --faq-blue: #3498DB;
  --faq-green: #2ECC71;
  --faq-orange: #E67E22;
  --faq-magenta: #E74C3C;
  --faq-card: #1E2A3A;
  --faq-border: #455A64;
  --faq-sub: #B0BEC5;
  --faq-radius: 12px;
  --faq-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.page-faq__hero {
  padding: 28px 0 36px;
  background: linear-gradient(135deg, #0B1220 0%, #2C3E50 55%, #4A235A 100%);
  border-bottom: 1px solid var(--faq-border);
}
.page-faq__title {
  font-size: 30px;
  font-weight: 900;
  line-height: 1.3;
  margin: 16px 0 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
}
.page-faq__title-divider {
  color: var(--faq-accent);
}
.page-faq__title-sub {
  font-size: 17px;
  font-weight: 700;
  color: var(--faq-sub);
}
.page-faq__lead {
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-sub);
  max-width: 720px;
}
.page-faq__current {
  color: var(--faq-sub);
}
.page-faq__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0 64px;
}
.page-faq__sidebar {
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 20px;
}
.page-faq__sidebar-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--faq-blue);
  margin-bottom: 12px;
}
.page-faq__sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-faq__sidebar-link {
  display: block;
  padding: 10px 12px;
  border-left: 3px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.page-faq__sidebar-link:hover,
.page-faq__sidebar-link:focus-visible {
  background: rgba(52, 152, 219, 0.15);
  border-left-color: var(--faq-blue);
}
.page-faq__sidebar-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-border);
}
.page-faq__sidebar-footer .btn {
  width: 100%;
  text-align: center;
}
.page-faq__content {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.page-faq__section {
  padding: 32px 0;
}
.page-faq__section--blue {
  background: var(--section-bg-a);
  border-radius: 20px;
  padding: 32px 20px;
}
.page-faq__section--purple {
  background: var(--section-bg-b);
  border-radius: 20px;
  padding: 32px 20px;
}
.page-faq__steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.page-faq__step {
  position: relative;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-top: 3px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 20px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.page-faq__step:hover {
  transform: translateY(-4px);
  box-shadow: var(--faq-shadow);
  border-color: var(--faq-blue);
}
.page-faq__step:nth-child(1) {
  border-top-color: var(--faq-blue);
}
.page-faq__step:nth-child(2) {
  border-top-color: var(--faq-orange);
  border-color: var(--faq-border);
}
.page-faq__step:nth-child(3) {
  border-top-color: var(--faq-green);
  border-color: var(--faq-border);
}
.page-faq__step:nth-child(4) {
  border-top-color: var(--faq-magenta);
  border-color: var(--faq-border);
}
.page-faq__step:nth-child(5) {
  border-top-color: var(--faq-accent);
  border-color: var(--faq-border);
}
.page-faq__step:nth-child(2):hover {
  border-color: var(--faq-orange);
}
.page-faq__step:nth-child(3):hover {
  border-color: var(--faq-green);
}
.page-faq__step:nth-child(4):hover {
  border-color: var(--faq-magenta);
}
.page-faq__step:nth-child(5):hover {
  border-color: var(--faq-accent);
}
.page-faq__step-num {
  display: block;
  font-size: 44px;
  font-weight: 900;
  line-height: 1;
  color: var(--faq-accent);
  font-family: 'SF Mono', 'Cascadia Mono', Consolas, monospace;
  margin-bottom: 10px;
}
.page-faq__step-icon {
  display: block;
  width: 80px;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--faq-border);
  margin-bottom: 12px;
}
.page-faq__step h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}
.page-faq__step p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--faq-sub);
}
.page-faq__step a {
  color: var(--faq-blue);
}
.page-faq__tag-guide {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
}
.page-faq__tag-figure {
  margin: 0;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.page-faq__tag-image {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 8px;
}
.page-faq__tag-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--faq-sub);
  text-align: center;
}
.page-faq__tag-copy h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 12px;
}
.page-faq__tag-copy p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-sub);
}
.page-faq__tag-relation {
  margin: 18px 0 14px;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 14px;
}
.page-faq__tag-relation svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-faq__tag-count {
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
}
.page-faq__tag-count strong {
  color: var(--faq-green);
  font-weight: 900;
}
.page-faq__filter-panel {
  margin-top: 24px;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 20px;
}
.page-faq__filter-panel h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--faq-blue);
}
.page-faq__filter-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-faq__filter-col {
  background: rgba(52, 152, 219, 0.1);
  border-radius: 10px;
  border-left: 4px solid var(--faq-blue);
  padding: 14px;
}
.page-faq__filter-col h4 {
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 6px;
}
.page-faq__filter-col p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--faq-sub);
}
.page-faq__faq-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-faq__faq-item {
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.page-faq__faq-item[open] {
  border-color: rgba(52, 152, 219, 0.65);
  box-shadow: 0 4px 16px rgba(52, 152, 219, 0.12);
}
.page-faq__faq-question {
  position: relative;
  padding: 18px 48px 18px 20px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: #FFFFFF;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s ease;
}
.page-faq__faq-question::-webkit-details-marker {
  display: none;
}
.page-faq__faq-question::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--faq-blue);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.page-faq__faq-item[open] .page-faq__faq-question::before {
  opacity: 1;
}
.page-faq__faq-question:hover {
  background: rgba(52, 152, 219, 0.08);
}
.page-faq__faq-question::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 300;
  color: var(--faq-blue);
  transition: transform 0.3s ease;
}
.page-faq__faq-item[open] .page-faq__faq-question::after {
  transform: translateY(-50%) rotate(45deg);
}
.page-faq__faq-answer {
  padding: 0 20px 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-sub);
  border-top: 1px solid rgba(69, 90, 100, 0.5);
  animation: page-faq-fade 0.3s ease;
}
.page-faq__faq-answer p {
  margin-top: 12px;
}
.page-faq__faq-answer a {
  color: var(--faq-blue);
}
@keyframes page-faq-fade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.page-faq__channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.page-faq__channel-card {
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-top: 3px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 20px;
  transition: transform 0.2s ease;
}
.page-faq__channel-card:hover {
  transform: translateY(-2px);
}
.page-faq__channel-card:nth-child(1) {
  border-top-color: var(--faq-blue);
}
.page-faq__channel-card:nth-child(2) {
  border-top-color: var(--faq-green);
}
.page-faq__channel-card:nth-child(3) {
  border-top-color: var(--faq-orange);
}
.page-faq__channel-card h3 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--faq-blue);
  margin-bottom: 8px;
}
.page-faq__channel-card p {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  word-break: break-word;
}
.page-faq__process {
  margin-top: 24px;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 24px;
}
.page-faq__process h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--faq-green);
  margin-bottom: 8px;
}
.page-faq__process p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-sub);
  margin-bottom: 16px;
}
.page-faq__process strong {
  color: var(--faq-accent);
}
@media (min-width: 640px) {
  .page-faq__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq__filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq__tag-guide {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}
@media (min-width: 1024px) {
  .page-faq__layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
    padding: 32px 0 80px;
  }
  .page-faq__sidebar {
    position: sticky;
    top: 96px;
  }
  .page-faq__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq__filter-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq__channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq__section--blue,
  .page-faq__section--purple {
    padding: 40px 32px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-faq__faq-answer {
    animation: none;
  }
  .page-faq__step,
  .page-faq__channel-card,
  .page-faq__faq-question,
  .page-faq__faq-question::after,
  .page-faq__faq-question::before,
  .page-faq__sidebar-link {
    transition: none;
  }
}