.page-faq {
  --faq-line: rgba(0, 229, 255, 0.18);
  --faq-card-bg: rgba(13, 42, 77, 0.55);
}

.page-faq__hero {
  position: relative;
  padding: 24px 0 0;
  overflow: hidden;
}

.page-faq__hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: -40px;
  width: 180px;
  height: 24px;
  background: linear-gradient(90deg, var(--accent-purple), transparent);
  clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%);
  opacity: 0.55;
  pointer-events: none;
}

.page-faq__hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--hairline) 32%, transparent 75%);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq__hero-grid {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

.page-faq__hero-copy {
  padding: 8px 0 16px;
}

.page-faq__title {
  margin: 12px 0 8px;
  font-family: var(--font-heading);
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: 0.03em;
}

.page-faq__lead {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--accent-blue);
  letter-spacing: 0.06em;
}

.page-faq__intro {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
}

.page-faq__hero-image {
  margin: 0;
  width: 100%;
  background: var(--surface);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq__hero-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__search-section {
  padding: 32px 0 8px;
}

.page-faq__searchbox {
  display: flex;
  align-items: center;
  border: 1px solid var(--accent-green);
  background: rgba(13, 42, 77, 0.5);
  box-shadow:
    0 0 0 1px rgba(198, 255, 0, 0.12),
    0 0 24px rgba(198, 255, 0, 0.06);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: box-shadow 0.2s ease;
}

.page-faq__searchbox:focus-within {
  box-shadow:
    0 0 0 2px rgba(198, 255, 0, 0.28),
    0 0 32px rgba(198, 255, 0, 0.12);
}

.page-faq__search-icon {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-left: 18px;
  pointer-events: none;
}

.page-faq__search-icon::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 13px;
  height: 13px;
  border: 2px solid var(--accent-green);
  border-radius: 50%;
}

.page-faq__search-icon::after {
  content: '';
  position: absolute;
  right: 1px;
  bottom: 2px;
  width: 8px;
  height: 2px;
  background: var(--accent-green);
  transform: rotate(45deg);
  transform-origin: right center;
}

.page-faq__search-input {
  flex: 1 1 auto;
  min-width: 0;
  background: transparent;
  border: 0;
  padding: 16px 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
}

.page-faq__search-input::placeholder {
  color: var(--text-muted);
}

.page-faq__search-meta {
  flex: 0 0 auto;
  padding-right: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.page-faq__content {
  padding: 32px 0 64px;
}

.page-faq__layout {
  display: grid;
  gap: 40px;
}

.page-faq__main {
  min-width: 0;
}

.page-faq__block {
  margin-bottom: 56px;
  scroll-margin-top: 24px;
}

.page-faq__accordion {
  margin-top: 28px;
}

.page-faq__item {
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--accent-blue);
  background: rgba(13, 42, 77, 0.45);
  margin-bottom: 12px;
  transition:
    border-color 0.2s ease,
    background 0.2s ease,
    transform 0.2s ease;
}

.page-faq__item:hover {
  border-left-color: var(--accent-green);
}

.page-faq__item[open] {
  border-left-color: var(--accent-purple);
  background: rgba(13, 42, 77, 0.8);
}

.page-faq__item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 16px 12px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  user-select: none;
}

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

.page-faq__item summary:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: -2px;
}

.page-faq__item summary::after {
  content: '＋';
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--accent-green);
  flex: 0 0 auto;
  transition: transform 0.2s ease;
}

.page-faq__item[open] summary::after {
  content: '－';
}

.page-faq__qnum {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-blue);
}

.page-faq__qtext {
  flex: 1 1 auto;
  color: var(--text-primary);
}

.page-faq__answer {
  padding: 0 20px 20px 44px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-faq__answer p {
  margin: 0 0 12px;
}

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

.page-faq__answer a {
  color: var(--accent-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.4);
  transition: color 0.2s ease, border-bottom-color 0.2s ease;
}

.page-faq__answer a:hover {
  color: var(--accent-green);
  border-bottom-color: var(--accent-green);
}

.page-faq__steps {
  display: grid;
  gap: 16px;
  margin: 28px 0 16px;
}

.page-faq__step {
  position: relative;
  background: linear-gradient(120deg, rgba(13, 42, 77, 0.9), rgba(8, 26, 46, 1));
  border: 1px solid var(--hairline);
  padding: 24px 20px 20px 72px;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  min-height: 120px;
}

.page-faq__step-num {
  position: absolute;
  left: 16px;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-purple);
  line-height: 1;
}

.page-faq__step h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 16px;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.page-faq__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-faq__flow-figure {
  margin: 12px 0 0;
  border: 1px solid var(--hairline);
  background: var(--surface);
}

.page-faq__flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__guide {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-faq__guide-card {
  position: relative;
  background: var(--faq-card-bg);
  border: 1px solid var(--hairline);
  padding: 24px 20px 20px 24px;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.page-faq__guide-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-purple), var(--accent-blue));
}

.page-faq__guide-card:hover {
  transform: translateY(-2px);
  border-color: var(--faq-line);
}

.page-faq__guide-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.page-faq__guide-card h3 {
  margin: 8px 0 6px;
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--text-primary);
}

.page-faq__guide-card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-faq__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq__aside .panel {
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--accent-purple);
  background: rgba(13, 42, 77, 0.4);
}

.page-faq__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq__toc-list li + li {
  border-top: 1px solid var(--hairline);
}

.page-faq__toc-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 4px;
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 13px;
  transition:
    color 0.2s ease,
    padding-left 0.2s ease;
}

.page-faq__toc-list a:hover {
  color: var(--accent-blue);
  padding-left: 10px;
}

.page-faq__toc-num {
  color: var(--accent-purple);
}

.page-faq__status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq__status-item {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  color: var(--text-muted);
}

.page-faq__status-dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  transform: rotate(45deg);
}

.page-faq__privacy-text {
  margin: 0 0 12px;
  font-size: 14px;
}

.page-faq__privacy-link {
  display: inline-block;
  color: var(--accent-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.3);
  font-size: 14px;
  transition: color 0.2s ease, border-bottom-color 0.2s ease;
}

.page-faq__privacy-link:hover {
  color: var(--accent-green);
  border-bottom-color: var(--accent-green);
}

@media (min-width: 768px) {
  .page-faq__hero {
    padding-top: 40px;
  }

  .page-faq__hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
  }

  .page-faq__title {
    font-size: 40px;
  }

  .page-faq__lead {
    font-size: 20px;
  }

  .page-faq__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-faq__guide {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (min-width: 1024px) {
  .page-faq__content {
    padding-top: 48px;
  }

  .page-faq__layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 48px;
    align-items: start;
  }

  .page-faq__aside {
    position: sticky;
    top: 24px;
  }
}