.page-disclaimer {
  display: block;
  background: var(--night);
  color: var(--bone);
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-disclaimer .usage-wrap {
  width: 100%;
  max-width: var(--stage-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 面包屑 */
.page-disclaimer .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 3vw, 34px);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-disclaimer .crumbs__item {
  color: var(--stone);
  text-decoration: none;
}

.page-disclaimer a.crumbs__item:hover,
.page-disclaimer a.crumbs__item:focus-visible {
  color: var(--pitch);
}

.page-disclaimer .crumbs__item[aria-current="page"] {
  color: var(--silver);
}

.page-disclaimer .crumbs__sep {
  color: var(--turf);
}

/* 首屏 */
.page-disclaimer .usage-head {
  padding-block: clamp(28px, 5vw, 56px) clamp(24px, 3.4vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-head__kicker {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-disclaimer .usage-head__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 200;
  font-size: clamp(34px, 7.4vw, 74px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--bone);
  max-width: 16ch;
}

.page-disclaimer .usage-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-disclaimer .usage-head__lede {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 66ch;
  font-family: var(--f-serif);
  font-size: 17px;
  line-height: 1.85;
  color: var(--silver);
}

.page-disclaimer .usage-head__hint {
  margin: 14px 0 0;
  max-width: 66ch;
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-disclaimer .usage-head__hint a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 首图通栏 */
.page-disclaimer .usage-banner {
  margin: 0;
  border-bottom: 1px solid var(--line-strong);
  background: var(--deep);
}

.page-disclaimer .usage-banner img {
  display: block;
  width: 100%;
  max-width: 1600px;
  height: auto;
  margin-inline: auto;
  object-fit: cover;
  aspect-ratio: 4 / 1;
}

.page-disclaimer .usage-banner__cap {
  max-width: var(--stage-max);
  margin-inline: auto;
  padding: 12px var(--gutter) 16px;
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 12px;
  line-height: 1.6;
  color: var(--stone);
}

/* 规则主体 */
.page-disclaimer .usage-body {
  padding-block: clamp(8px, 2vw, 20px) clamp(48px, 8vw, 96px);
}

.page-disclaimer .rule-set {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 26px);
  padding-block: clamp(30px, 5vw, 56px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .rule-set__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
}

.page-disclaimer .rule-set__no {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1;
  color: var(--clay);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .rule-set__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--f-display);
  font-weight: 200;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-disclaimer .rule-set__note {
  flex-basis: 100%;
  margin: 0;
  padding-left: 0;
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-disclaimer .rule-set--alert .rule-set__no,
.page-disclaimer .rule-set--alert .rules__no {
  color: var(--amber);
}

.page-disclaimer .rule-set--plain .rule-set__no {
  color: var(--moss);
}

/* 规则条目 */
.page-disclaimer .rules {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-disclaimer .rules__item {
  position: relative;
  margin: 0;
  padding: clamp(16px, 2.3vw, 24px) 0 clamp(16px, 2.3vw, 24px) 50px;
}

.page-disclaimer .rules__item + .rules__item {
  border-top: 1px solid var(--line);
}

.page-disclaimer .rules__no {
  position: absolute;
  left: 0;
  top: calc(clamp(16px, 2.3vw, 24px) + 4px);
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--clay);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .rules__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--bone);
}

.page-disclaimer .rules__text b {
  color: var(--silver);
  font-weight: 700;
}

.page-disclaimer .rules__except {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--turf);
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 13px;
  line-height: 1.75;
  color: var(--stone);
}

/* 引用示例 */
.page-disclaimer .cite {
  margin: 0;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--clay);
  background: var(--deep);
  box-shadow: var(--hard);
}

.page-disclaimer .cite__cap {
  margin: 0 0 12px;
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 12px;
  color: var(--stone);
}

.page-disclaimer .cite__code {
  margin: 0;
  font-family: var(--f-mono);
  font-size: clamp(12px, 1.5vw, 14px);
  font-weight: 500;
  line-height: 1.9;
  color: var(--silver);
  white-space: pre-wrap;
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .cite__note {
  margin: 14px 0 0;
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* 对照带 */
.page-disclaimer .band {
  background: var(--deep);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  padding-block: clamp(28px, 4.4vw, 52px);
}

.page-disclaimer .band__title {
  margin: 0 0 10px;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--bone);
}

.page-disclaimer .band__lede {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  max-width: 60ch;
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-disclaimer .band__track {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-disclaimer .band__col {
  flex: 0 0 86%;
  min-width: 0;
  scroll-snap-align: start;
  padding: clamp(18px, 2.4vw, 26px);
  border-top: 4px solid var(--pitch);
}

.page-disclaimer .band__col--ok {
  background: var(--turf);
}

.page-disclaimer .band__col--no {
  background: var(--night);
  border-top-color: var(--stone);
}

.page-disclaimer .band__col-title {
  margin: 0 0 14px;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(17px, 2.1vw, 21px);
  letter-spacing: 0.02em;
  color: var(--bone);
}

.page-disclaimer .band__col--no .band__col-title {
  color: var(--silver);
}

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

.page-disclaimer .band__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--bone);
}

.page-disclaimer .band__col--no .band__list li {
  color: var(--silver);
}

.page-disclaimer .band__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 11px;
  height: 2px;
  background: var(--bone);
}

.page-disclaimer .band__col--no .band__list li::before {
  background: var(--stone);
}

/* 后续入口 */
.page-disclaimer .usage-links {
  padding-top: clamp(34px, 5vw, 60px);
  padding-bottom: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .usage-links__title {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  font-family: var(--f-display);
  font-weight: 200;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.1;
  color: var(--bone);
}

.page-disclaimer .usage-links__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.page-disclaimer .usage-links__a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 14px;
  padding: 16px 4px;
  text-decoration: none;
  color: inherit;
  transition: background-color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-disclaimer .usage-links__a:hover,
.page-disclaimer .usage-links__a:focus-visible {
  background: var(--deep);
  padding-left: 12px;
}

.page-disclaimer .usage-links__idx {
  grid-row: 1 / span 2;
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--clay);
}

.page-disclaimer .usage-links__label {
  font-family: var(--f-display);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--bone);
}

.page-disclaimer .usage-links__desc {
  grid-column: 2;
  font-family: var(--f-sans);
  font-size: 14px;
  line-height: 1.65;
  color: var(--stone);
}

.page-disclaimer .usage-links__foot {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 70ch;
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 300;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

/* 桌面端布局 */
@media (min-width: 900px) {
  .page-disclaimer .rule-set {
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-disclaimer .rule-set__head {
    position: sticky;
    top: 28px;
    display: block;
  }

  .page-disclaimer .rule-set__title {
    display: block;
    margin-top: 10px;
  }

  .page-disclaimer .band__track {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2px;
    overflow: visible;
  }

  .page-disclaimer .band__col {
    flex: none;
    padding: clamp(22px, 2.6vw, 32px);
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .rule-set__head {
    padding-right: 12px;
  }

  .page-disclaimer .rules__item {
    padding-left: 62px;
  }

  .page-disclaimer .rules__item + .rules__item {
    padding-top: clamp(20px, 2.3vw, 26px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-links__a {
    transition: none;
  }
}
</main>