.page-disclaimer {
  --clause-gap: clamp(32px, 5vw, 72px);
  --toc-offset: calc(var(--head-mobile) + 8px);
  padding-block: clamp(24px, 4vw, 52px) clamp(72px, 9vw, 128px);
  background:
    radial-gradient(1100px 520px at 82% -8%, rgba(53, 214, 224, 0.1), transparent 62%),
    linear-gradient(180deg, rgba(16, 26, 51, 0.65), rgba(7, 11, 24, 0) 46%);
}

.page-disclaimer .breadcrumb {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-disclaimer .usage-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  padding-bottom: clamp(24px, 3.4vw, 44px);
  border-bottom: 1px solid var(--line-soft);
}

.page-disclaimer .usage-hero h1 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-disclaimer .usage-hero .lead {
  margin-top: 16px;
  max-width: 46ch;
  color: var(--paper-dim);
}

.page-disclaimer .hero-facts {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .fact {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-block: 12px;
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .fact-value {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--gold-soft);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .fact-label {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--nebula);
}

.page-disclaimer .usage-toc {
  position: sticky;
  top: var(--toc-offset);
  z-index: 5;
  margin-top: clamp(20px, 3vw, 34px);
  padding-block: 10px;
  background: linear-gradient(180deg, rgba(7, 11, 24, 0.94), rgba(7, 11, 24, 0.78));
  border-bottom: 1px solid var(--line-soft);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .usage-toc .anchor-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 20px;
  min-width: max-content;
}

.page-disclaimer .usage-body {
  display: grid;
  gap: var(--clause-gap);
  margin-top: clamp(30px, 4.4vw, 56px);
}

.page-disclaimer .clause {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-disclaimer .clause + .clause::before {
  content: "";
  position: absolute;
  top: calc(var(--clause-gap) / -2);
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--rail-cyan);
  opacity: 0.4;
  transform: rotate(-14deg);
  transform-origin: left center;
}

.page-disclaimer .clause-index {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-disclaimer .clause-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: var(--star-gold);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .clause-hair {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-mid), transparent);
}

.page-disclaimer .clause-body h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-disclaimer .clause-body p {
  margin: 14px 0 0;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-disclaimer .clause-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-disclaimer .clause-list li {
  position: relative;
  padding-left: 20px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-disclaimer .clause-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--rail-cyan);
  transform: rotate(45deg);
}

.page-disclaimer .clause-body .copy-btn {
  margin-top: 18px;
}

.page-disclaimer .clause-en {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--nebula);
}

.page-disclaimer .clause-en::before {
  content: "EN";
  display: block;
  margin-bottom: 6px;
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  color: var(--rail-cyan);
  opacity: 0.85;
}

.page-disclaimer .clause-note {
  align-self: start;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--nebula);
}

.page-disclaimer .note-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rail-cyan);
}

.page-disclaimer .quarter-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.page-disclaimer .q-block {
  padding: 14px 14px 12px;
  background: var(--indigo);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: border-color 0.45s var(--ease), transform 0.45s var(--ease);
}

.page-disclaimer .q-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .q-detail {
  display: block;
  margin-top: 8px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--nebula);
  opacity: 0.65;
  transition: opacity 0.45s var(--ease), color 0.45s var(--ease);
}

.page-disclaimer .q-block:hover,
.page-disclaimer .q-block:focus-visible {
  border-color: var(--gold-line);
  transform: translateY(-4px);
}

.page-disclaimer .q-block:hover .q-detail,
.page-disclaimer .q-block:focus-visible .q-detail {
  opacity: 1;
  color: var(--paper-dim);
}

.page-disclaimer .usage-figure {
  margin: 26px 0 0;
}

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

.page-disclaimer .usage-figure figcaption {
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--nebula);
}

.page-disclaimer .usage-rail {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: clamp(48px, 6vw, 84px);
}

.page-disclaimer .usage-rail-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rail-cyan) 42%, var(--star-gold));
  opacity: 0.75;
}

.page-disclaimer .usage-related {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .usage-related a {
  font-size: 0.9375rem;
  color: var(--paper-dim);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-mid);
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease);
}

.page-disclaimer .usage-related a:hover,
.page-disclaimer .usage-related a:focus-visible {
  color: var(--cyan-bright);
  border-color: var(--cyan-bright);
}

@media (min-width: 640px) {
  .page-disclaimer .quarter-map {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-disclaimer {
    --toc-offset: calc(var(--head-desktop) + 10px);
  }

  .page-disclaimer .usage-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: clamp(32px, 5vw, 80px);
    align-items: end;
  }

  .page-disclaimer .clause {
    grid-template-columns: 4.5rem minmax(0, 1fr) 15rem;
    column-gap: clamp(24px, 3.4vw, 56px);
    align-items: stretch;
  }

  .page-disclaimer .clause-index {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .page-disclaimer .clause-hair {
    flex: 1;
    width: 1px;
    height: auto;
    min-height: 48px;
    background: linear-gradient(180deg, var(--line-mid), transparent);
  }

  .page-disclaimer .clause-note {
    padding-top: 0;
    padding-left: 18px;
    border-top: 0;
    border-left: 1px solid var(--line-soft);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .q-block,
  .page-disclaimer .q-detail,
  .page-disclaimer .usage-related a {
    transition-duration: 0.15s;
  }

  .page-disclaimer .q-block:hover,
  .page-disclaimer .q-block:focus-visible {
    transform: none;
  }
}