.page-disclaimer {
  --u-line: rgba(59, 224, 200, 0.18);
  --u-line-soft: rgba(200, 194, 180, 0.16);
  --u-grid: rgba(59, 224, 200, 0.045);
  position: relative;
  background-color: var(--ink-900);
  background-image:
    linear-gradient(to right, var(--u-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--u-grid) 1px, transparent 1px);
  background-size: 72px 72px;
  color: var(--paper);
  padding-bottom: clamp(48px, 9vw, 120px);
}

/* ---------- Hero ---------- */
.page-disclaimer .usage-hero {
  padding: clamp(22px, 4vw, 40px) 0 clamp(28px, 5vw, 56px);
  border-bottom: 2px solid var(--ink-700);
}

.page-disclaimer .usage-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-disclaimer .usage-crumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-disclaimer .usage-crumbs li + li::before {
  content: "/";
  color: var(--paper-dim);
  opacity: 0.6;
}

.page-disclaimer .usage-crumbs a {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-disclaimer .usage-crumbs li[aria-current="page"] {
  color: var(--cyan);
}

.page-disclaimer .usage-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(20px, 4vw, 34px);
  align-items: end;
}

.page-disclaimer .usage-hero-copy {
  min-width: 0;
}

.page-disclaimer .usage-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(26px, 5vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-disclaimer .usage-hero .lede {
  margin: 0;
  max-width: 620px;
  font-size: clamp(14.5px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-disclaimer .usage-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: clamp(14px, 2vw, 18px) 0 0;
  list-style: none;
  border-top: 1px solid var(--u-line);
}

.page-disclaimer .usage-meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12.5px;
  color: var(--gray);
}

.page-disclaimer .usage-meta b {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-disclaimer .usage-hero-media {
  margin: 0;
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

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

/* ---------- Chapter strip ---------- */
.page-disclaimer .usage-toc {
  background: var(--ink-800);
  border-top: 1px solid var(--ink-700);
  border-bottom: 1px solid var(--ink-700);
  box-shadow: inset 0 2px 0 rgba(59, 224, 200, 0.3);
}

.page-disclaimer .usage-toc-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 12px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .usage-toc-list::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .usage-toc-list li {
  flex: 0 0 auto;
}

.page-disclaimer .usage-toc-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--ink-700);
  color: var(--paper-dim);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-disclaimer .usage-toc-link:hover,
.page-disclaimer .usage-toc-link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(59, 224, 200, 0.08);
}

.page-disclaimer .usage-toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-disclaimer .usage-toc-num::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: currentColor;
  vertical-align: middle;
  transform: translateY(-1px);
}

/* ---------- Chapters ---------- */
.page-disclaimer .usage-body {
  padding-top: clamp(6px, 2vw, 18px);
}

.page-disclaimer .usage-chapter {
  padding: clamp(32px, 5.5vw, 62px) 0 clamp(16px, 2.6vw, 28px);
  border-bottom: 1px solid var(--u-line-soft);
  scroll-margin-top: 72px;
}

.page-disclaimer .usage-chapter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: clamp(14px, 2.4vw, 24px);
}

.page-disclaimer .usage-chapter-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  border: 1px solid var(--u-line);
  padding: 4px 9px;
  white-space: nowrap;
}

.page-disclaimer .usage-chapter-title {
  margin: 0;
  flex: 1 1 240px;
  min-width: 0;
  font-size: clamp(19px, 3vw, 29px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--paper);
}

.page-disclaimer .usage-clause {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: clamp(15px, 2.4vw, 22px) 0;
  border-top: 1px solid var(--u-line-soft);
}

.page-disclaimer .usage-clause:first-of-type {
  border-top: none;
  padding-top: 0;
}

.page-disclaimer .usage-clause-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan-deep);
}

.page-disclaimer .usage-clause-body {
  min-width: 0;
}

.page-disclaimer .usage-clause-body h3 {
  margin: 0 0 8px;
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-disclaimer .usage-clause-body p {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- Sample block ---------- */
.page-disclaimer .usage-sample {
  margin: 18px 0 4px;
  padding: clamp(15px, 2.6vw, 24px);
  background: var(--paper);
  border: 2px solid var(--ink-800);
  box-shadow: 8px 8px 0 var(--cyan-deep);
  max-width: 640px;
}

.page-disclaimer .usage-sample-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-700);
}

.page-disclaimer .usage-sample-head::before {
  content: "";
  flex: 0 0 auto;
  width: 20px;
  height: 2px;
  background: var(--orange);
}

.page-disclaimer .usage-sample-code {
  margin: 0;
  padding: 0 0 0 14px;
  border-left: 3px solid var(--orange);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 2;
  color: var(--ink-800);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

/* ---------- Outro ---------- */
.page-disclaimer .usage-outro {
  margin-top: clamp(34px, 6vw, 68px);
  padding: clamp(22px, 4vw, 40px);
  background: var(--ink-800);
  border: 2px solid var(--ink-700);
  border-left: 6px solid var(--orange);
  box-shadow: var(--shadow-solid);
}

.page-disclaimer .usage-outro h2 {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer .usage-outro p {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray);
}

.page-disclaimer .usage-outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

/* ---------- Responsive ---------- */
@media (min-width: 760px) {
  .page-disclaimer .usage-clause {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 0 28px;
  }

  .page-disclaimer .usage-clause-num {
    padding-top: 4px;
  }
}

@media (min-width: 940px) {
  .page-disclaimer .usage-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-disclaimer .usage-toc-list {
    padding: 14px 0;
  }
}

@media (max-width: 420px) {
  .page-disclaimer .usage-toc-link {
    padding: 7px 10px;
    font-size: 12px;
  }

  .page-disclaimer .usage-chapter-title {
    flex-basis: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-toc-link,
  .page-disclaimer .usage-crumbs a {
    transition: none;
  }
}
<<<END>>>