.page-disclaimer {
  --u-line: rgba(58, 74, 107, 0.55);
  --u-grid: rgba(159, 176, 198, 0.07);
  padding-bottom: var(--sp-64);
  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: 56px 56px;
}

/* 面包屑 */
.page-disclaimer .breadcrumbs {
  padding-top: var(--sp-24);
  font-size: var(--fs-13);
  letter-spacing: 0.05em;
  color: var(--silver);
}
.page-disclaimer .breadcrumbs a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.page-disclaimer .breadcrumbs a:hover,
.page-disclaimer .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* 首屏 */
.page-disclaimer .usage-hero {
  padding: var(--sp-24) 0 var(--sp-40);
}
.page-disclaimer .usage-hero__eyebrow {
  margin: 0 0 var(--sp-16);
  color: var(--cyan);
}
.page-disclaimer .usage-hero h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(36px, 8vw, 72px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0.08em;
  color: var(--paper);
}
.page-disclaimer .usage-hero h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 4px;
  margin-top: var(--sp-24);
  background: var(--red);
}
.page-disclaimer .usage-hero__lead {
  margin: var(--sp-24) 0 0;
  max-width: 38em;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--silver);
}
.page-disclaimer .usage-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-16);
  margin-top: var(--sp-24);
}
.page-disclaimer .usage-hero__status {
  margin-top: var(--sp-40);
}
.page-disclaimer .usage-hero__status .status-strip__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* 条款索引条 */
.page-disclaimer .usage-toc {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-8);
  margin-top: var(--sp-40);
  padding-top: var(--sp-24);
  border-top: 1px solid var(--u-line);
}
.page-disclaimer .usage-toc a {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-8);
  padding: 8px 14px;
  background: var(--ink-800);
  border: var(--line) solid var(--graphite);
  color: var(--paper);
  font-size: var(--fs-13);
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: border-color var(--ease), transform var(--ease), background-color var(--ease);
}
.page-disclaimer .usage-toc a .num {
  font-size: var(--fs-13);
  color: var(--amber);
}
.page-disclaimer .usage-toc a:hover,
.page-disclaimer .usage-toc a:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

/* 编号条款 */
.page-disclaimer .clause {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-16);
  padding: var(--sp-40) 0;
  border-top: var(--line) solid var(--graphite);
  scroll-margin-top: 88px;
}
.page-disclaimer .clause:last-of-type {
  border-bottom: var(--line) solid var(--graphite);
}
.page-disclaimer .clause__num {
  display: inline-block;
  padding-left: var(--sp-16);
  border-left: 4px solid var(--amber);
  font-family: var(--font-mono);
  font-size: var(--fs-32);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--amber);
}
.page-disclaimer .clause__title {
  margin: 0 0 var(--sp-8);
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--paper);
}
.page-disclaimer .clause__sub {
  margin: 0 0 var(--sp-24);
  padding-bottom: var(--sp-16);
  border-bottom: 1px dashed var(--u-line);
  font-size: var(--fs-15);
  letter-spacing: 0.04em;
  color: var(--silver);
}
.page-disclaimer .clause__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}
.page-disclaimer .clause__list > li {
  counter-increment: step;
  position: relative;
  max-width: 40em;
  margin-bottom: var(--sp-24);
  padding-left: 48px;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--paper);
}
.page-disclaimer .clause__list > li:last-child {
  margin-bottom: 0;
}
.page-disclaimer .clause__list > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 5px;
  min-width: 30px;
  padding: 2px 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--silver);
  background: var(--ink-800);
  border: 1px solid var(--graphite);
}
.page-disclaimer .clause__list a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 227, 225, 0.4);
  transition: color var(--ease), border-color var(--ease);
}
.page-disclaimer .clause__list a:hover,
.page-disclaimer .clause__list a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* 中部三色索引条 */
.page-disclaimer .usage-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-16);
  margin-top: var(--sp-40);
}
.page-disclaimer .usage-index__item {
  position: relative;
  padding: var(--sp-24);
  background: var(--ink-800);
  border: var(--line) solid var(--graphite);
  box-shadow: var(--shadow-hard);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.page-disclaimer .usage-index__item::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 18px;
  height: 18px;
  background: var(--ink-900);
  border-left: var(--line) solid var(--graphite);
  border-bottom: var(--line) solid var(--graphite);
  pointer-events: none;
}
.page-disclaimer .usage-index__item:hover,
.page-disclaimer .usage-index__item:focus {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 6px 7px 0 rgba(58, 74, 107, 0.95);
}
.page-disclaimer .usage-index__item:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-disclaimer .usage-index__title {
  margin: var(--sp-16) 0 6px;
  font-size: var(--fs-22);
  letter-spacing: 0.02em;
  color: var(--paper);
}
.page-disclaimer .usage-index__title .num {
  font-size: var(--fs-22);
  color: var(--paper);
}
.page-disclaimer .usage-index__brief {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.7;
  color: var(--silver);
}
.page-disclaimer .usage-index__more {
  margin-top: var(--sp-16);
  padding-left: var(--sp-16);
  border-left: 2px solid var(--cyan);
  max-height: 240px;
  overflow: hidden;
  opacity: 1;
  font-size: var(--fs-15);
  line-height: 1.75;
  color: var(--silver);
  transition: max-height 200ms ease, opacity 200ms ease, margin-top 200ms ease, border-color 200ms ease;
}

/* 信息图 */
.page-disclaimer .usage-figure {
  margin: var(--sp-40) 0 0;
}

@media (min-width: 860px) {
  .page-disclaimer .usage-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-24);
  }
  .page-disclaimer .usage-index__item .usage-index__more {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    border-left-color: transparent;
  }
  .page-disclaimer .usage-index__item:hover .usage-index__more,
  .page-disclaimer .usage-index__item:focus .usage-index__more,
  .page-disclaimer .usage-index__item:focus-within .usage-index__more {
    max-height: 240px;
    margin-top: var(--sp-16);
    opacity: 1;
    border-left-color: var(--cyan);
  }
}

@media (min-width: 900px) {
  .page-disclaimer .clause {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: var(--sp-40);
    padding: var(--sp-64) 0;
  }
  .page-disclaimer .clause__num {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 600px) {
  .page-disclaimer .usage-hero h1 {
    letter-spacing: 0.04em;
  }
  .page-disclaimer .clause {
    padding: var(--sp-24) 0;
  }
  .page-disclaimer .clause__list > li {
    padding-left: 44px;
    font-size: var(--fs-15);
  }
  .page-disclaimer .usage-index__item {
    padding: var(--sp-16);
  }
}
<<<END>>>