.page-faq {
  --faq-sidebar-w: 300px;
  --faq-panel-bg: rgba(13, 43, 69, 0.86);
  background:
    linear-gradient(rgba(61, 90, 128, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 90, 128, 0.08) 1px, transparent 1px);
  background-size: 36px 36px;
  background-position: 0 0;
}
.page-faq .breadcrumbs {
  margin-top: 1.5rem;
  color: var(--text-dim);
}
.page-faq .breadcrumbs a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}
.page-faq .breadcrumbs a:hover {
  border-bottom-color: var(--accent);
}
.page-faq .faq-hero {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 2.5rem 1.25rem 1.5rem;
  position: relative;
}
.page-faq .faq-hero__coord {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.05;
  margin: 0 0 1rem;
  color: var(--text-main);
  position: relative;
  display: inline-block;
}
.page-faq .faq-hero__title::after {
  content: "";
  position: absolute;
  right: -14px;
  top: 10px;
  width: 16px;
  height: 16px;
  background: var(--accent);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  opacity: 0.9;
}
.page-faq .faq-hero__lead {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 56ch;
  color: var(--gray-mist);
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 0 0 0 0.25rem;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 1.25rem;
  bottom: 1rem;
  width: 96px;
  height: 40px;
  border: 1px solid rgba(61, 90, 128, 0.5);
  background: repeating-linear-gradient(-45deg, transparent 0 6px, rgba(0, 255, 163, 0.14) 6px 8px);
  display: none;
}
.page-faq .faq-layout {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 0 1.25rem 3.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}
.page-faq .faq-index {
  position: relative;
}
.page-faq .faq-index__panel {
  background: var(--faq-panel-bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.25rem;
  position: relative;
  box-shadow: var(--shadow-1);
}
.page-faq .faq-index__panel::before {
  content: "IDX·FAQ";
  position: absolute;
  top: 0;
  right: 0;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--deep-blue);
  border-left: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 0.2rem 0.5rem;
  border-radius: 0 0 0 4px;
}
.page-faq .faq-index h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  margin: 0 0 0.125rem;
  color: var(--text-main);
}
.page-faq .faq-index__sub {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-dim);
  margin: 0 0 1rem;
}
.page-faq .faq-search {
  margin-bottom: 1rem;
}
.page-faq .faq-search__input {
  width: 100%;
  background: var(--deep-blue);
  border: 1px solid var(--line);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 0.625rem 0.75rem;
  border-radius: 3px;
  outline: none;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-faq .faq-search__input::placeholder {
  color: var(--gray-mist);
  opacity: 0.7;
}
.page-faq .faq-search__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 255, 163, 0.18);
}
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.page-faq .faq-filter__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
  padding: 0.35rem 0.7rem;
  border-radius: 2px;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  color: var(--ice-white);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .faq-filter__tag span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent);
}
.page-faq .faq-filter__tag:hover,
.page-faq .faq-filter__tag:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent);
  outline: none;
}
.page-faq .faq-filter__tag--all { border-left: 3px solid var(--accent); }
.page-faq .faq-filter__tag--replay { border-left: 3px solid var(--fluorescent-green); }
.page-faq .faq-filter__tag--install { border-left: 3px solid var(--amber-warning); }
.page-faq .faq-filter__tag--account { border-left: 3px solid var(--violet-glow); }
.page-faq .faq-filter__tag--update { border-left: 3px solid var(--dark-red); }
.page-faq .faq-filter__tag--feedback { border-left: 3px solid var(--steel-blue); }
.page-faq .faq-index__img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 3px;
  margin-top: 0.5rem;
  display: block;
}
.page-faq .faq-index__note {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1.6;
  color: var(--text-dim);
  margin: 0.75rem 0 0;
  border-top: 1px dashed var(--line);
  padding-top: 0.625rem;
}
.page-faq .faq-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.page-faq .qa-section {
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 1rem);
}
.page-faq .section-head {
  margin-bottom: 0.75rem;
}
.page-faq .section-head__index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  padding: 0.2rem 0.5rem;
}
.page-faq .section-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-main);
  margin: 0;
}
.page-faq .section-head__line {
  flex: 1;
  height: 1px;
  background: var(--line);
}
.page-faq .qa-section__hint {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-dim);
  margin: 0 0 1rem;
}
.page-faq .qa-item {
  border: 1px solid var(--line);
  border-left-width: 3px;
  background: var(--bg-panel);
  margin-bottom: 0.625rem;
  border-radius: 3px;
  scroll-margin-top: calc(var(--header-h) + 1rem);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-faq .qa-item:hover {
  border-left-color: var(--accent);
  box-shadow: var(--shadow-1);
}
.page-faq .qa-item[open] {
  border-left-color: var(--accent);
}
.page-faq .qa-item summary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--ice-white);
  padding: 0.875rem 1rem 0.875rem 2.5rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  line-height: 1.45;
}
.page-faq .qa-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa-item summary::before {
  content: "";
  position: absolute;
  left: 0.875rem;
  top: 50%;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.25s var(--ease);
}
.page-faq .qa-item[open] summary::before {
  transform: translateY(-30%) rotate(-135deg);
}
.page-faq .qa-item__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent);
  display: inline-block;
  margin-right: 0.5rem;
  border: 1px solid var(--line);
  padding: 0.05rem 0.3rem;
  border-radius: 2px;
  vertical-align: middle;
}
.page-faq .qa-item__body {
  padding: 0 1rem 1rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-main);
}
.page-faq .qa-item__body p {
  margin: 0 0 0.625rem;
}
.page-faq .qa-item__body p:last-child {
  margin-bottom: 0;
}
.page-faq .qa-item__body ol {
  margin: 0 0 0.625rem;
  padding-left: 1.25rem;
}
.page-faq .qa-item__body li {
  margin-bottom: 0.3rem;
}
.page-faq .qa-section--version .qa-item summary::after {
  content: "WIN";
  position: absolute;
  right: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.08em;
  color: var(--amber-warning);
  border: 1px solid var(--amber-warning);
  border-radius: 2px;
  padding: 0.1rem 0.25rem;
  opacity: 0.85;
}
.page-faq .qa-section--feedback {
  border: 1px solid rgba(76, 63, 145, 0.55);
  background: var(--bg-panel);
  padding: 1.25rem;
  border-radius: 4px;
}
.page-faq .qa-section--feedback .section-head__index {
  color: var(--violet-glow);
}
.page-faq .faq-feedback__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1rem 0 1.25rem;
}
.page-faq .faq-feedback__img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 3px;
  display: block;
}
.page-faq .faq-feedback__steps {
  display: grid;
  gap: 1rem;
}
.page-faq .feedback-step {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  align-items: start;
}
.page-faq .feedback-step__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  background: var(--deep-blue);
  border: 1px solid var(--line);
  border-radius: 50%;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-faq .feedback-step h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  margin: 0 0 0.25rem;
  color: var(--text-main);
}
.page-faq .feedback-step p {
  font-family: var(--font-body);
  font-size: 0.84375rem;
  line-height: 1.6;
  color: var(--gray-mist);
  margin: 0;
}
.page-faq .faq-feedback__entry {
  border-top: 1px dashed var(--line);
  padding-top: 1.25rem;
}
.page-faq .faq-feedback__entry > p {
  font-family: var(--font-body);
  font-size: 0.84375rem;
  line-height: 1.7;
  color: var(--gray-mist);
  margin: 0 0 0.875rem;
}
.page-faq .faq-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}
.page-faq .faq-privacy-note {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 0 1.25rem 3rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--text-dim);
}
.page-faq .faq-privacy-note a {
  color: var(--accent);
  text-decoration: none;
}
.page-faq .faq-privacy-note a:hover {
  text-decoration: underline;
}
@media (min-width: 768px) {
  .page-faq .faq-hero::after {
    display: block;
  }
  .page-faq .faq-feedback__split {
    grid-template-columns: 280px 1fr;
    align-items: center;
  }
}
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-sidebar-w) 1fr;
    gap: 2.5rem;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
  }
  .page-faq .faq-feedback__steps {
    gap: 1.125rem;
  }
  .page-faq .qa-section--feedback {
    padding: 1.5rem;
  }
}