.page-disclaimer .usage-lead {
  padding-bottom: 52px;
}

.page-disclaimer .usage-lead__grid {
  align-items: start;
  row-gap: 44px;
  column-gap: 56px;
  margin-top: 30px;
}

.page-disclaimer .usage-kicker {
  margin: 0 0 16px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--signal-ink);
}

.page-disclaimer .usage-title {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-size: clamp(32px, 8vw, 56px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-disclaimer .usage-lede {
  max-width: 46ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink-600);
}

/* 首屏关键数字 */
.page-disclaimer .usage-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--silver-200);
  background-color: var(--silver-200);
}

.page-disclaimer .usage-facts__item {
  padding: 15px 16px;
  background-color: var(--paper-100);
}

.page-disclaimer .usage-facts__value {
  display: block;
  font-family: var(--font-num);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-disclaimer .usage-facts__label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  font-weight: 300;
  line-height: 1.6;
  color: var(--ink-600);
}

@media (min-width: 720px) {
  .page-disclaimer .usage-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 目录 */
.page-disclaimer .usage-toc {
  border-top: 2px solid var(--ink-950);
  padding-top: 16px;
}

.page-disclaimer .usage-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: usage-toc;
}

.page-disclaimer .usage-toc__item {
  border-bottom: 1px solid var(--silver-200);
}

.page-disclaimer .usage-toc__item .toc__link {
  display: block;
  padding: 11px 0;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ink-600);
  text-decoration: none;
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.page-disclaimer .usage-toc__item .toc__link::before {
  counter-increment: usage-toc;
  content: counter(usage-toc, decimal-leading-zero);
  margin-right: 10px;
  font-size: 11px;
  color: var(--silver-400);
}

.page-disclaimer .usage-toc__item .toc__link:hover,
.page-disclaimer .usage-toc__item .toc__link:focus-visible {
  padding-left: 6px;
  color: var(--signal-ink);
}

/* 数据来源四栏 */
.page-disclaimer .usage-source {
  margin-top: 8px;
}

.page-disclaimer .usage-source__col {
  padding: 22px 0 20px;
  border-top: 1px solid var(--silver-200);
}

.page-disclaimer .usage-source__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-disclaimer .usage-source__text {
  max-width: 52ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-600);
}

/* 读法信息图 */
.page-disclaimer .usage-figure {
  margin: 0 0 36px;
}

.page-disclaimer .usage-figure .figure__frame {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--silver-200);
  background-color: var(--paper-100);
  overflow: hidden;
}

.page-disclaimer .usage-figure .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.page-disclaimer .usage-figure .figure__caption {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--silver-400);
}

/* 四类模块读法 */
.page-disclaimer .usage-read {
  margin-top: 34px;
  border-top: 1px solid var(--ink-950);
}

.page-disclaimer .usage-read__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 22px 0;
  border-bottom: 1px solid var(--silver-200);
}

.page-disclaimer .usage-read__num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--signal-ink);
}

.page-disclaimer .usage-read__name {
  margin: 0;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-disclaimer .usage-read__text {
  max-width: 62ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink-600);
}

.page-disclaimer .usage-read__key {
  font-family: var(--font-num);
  font-size: 0.94em;
  color: var(--ink-950);
  border-bottom: 2px solid var(--signal);
  padding-bottom: 1px;
}

.page-disclaimer .usage-read__foot {
  margin: 28px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-600);
}

.page-disclaimer .usage-link {
  color: var(--signal-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--signal);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-disclaimer .usage-link:hover,
.page-disclaimer .usage-link:focus-visible {
  color: var(--ink-950);
  border-bottom-color: var(--ink-950);
}

@media (min-width: 860px) {
  .page-disclaimer .usage-read__item {
    grid-template-columns: 56px 190px minmax(0, 1fr);
    gap: 0 32px;
    align-items: baseline;
    padding: 26px 0;
  }

  .page-disclaimer .usage-read__num {
    padding-top: 6px;
  }
}

/* 引用与转载 */
.page-disclaimer .usage-cite p {
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink-600);
}

.page-disclaimer .usage-cite strong {
  font-weight: 700;
  color: var(--ink-950);
  border-bottom: 2px solid var(--signal);
  padding-bottom: 1px;
}

.page-disclaimer .usage-cite a {
  color: var(--signal-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--signal);
}

.page-disclaimer .usage-cite a:hover,
.page-disclaimer .usage-cite a:focus-visible {
  color: var(--ink-950);
  border-bottom-color: var(--ink-950);
}

/* 修订与版本对照（深色区） */
.page-disclaimer .usage-revisions {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  margin-top: 34px;
}

.page-disclaimer .usage-revisions__item {
  padding-top: 20px;
  border-top: 1px solid rgba(215, 220, 225, 0.3);
}

.page-disclaimer .usage-revisions__value {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(34px, 6vw, 50px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper-100);
}

.page-disclaimer .usage-revisions__value--signal {
  color: var(--signal);
}

.page-disclaimer .usage-revisions__unit {
  margin-left: 6px;
  font-size: 0.4em;
  font-weight: 400;
  color: var(--silver-400);
}

.page-disclaimer .usage-revisions__label {
  display: block;
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver-400);
}

.page-disclaimer .usage-revisions__text {
  max-width: 68ch;
  margin: 38px 0 0;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--silver-400);
}

.page-disclaimer .usage-fold {
  margin-top: 32px;
  border-top: 1px solid rgba(215, 220, 225, 0.3);
  border-bottom: 1px solid rgba(215, 220, 225, 0.3);
}

.page-disclaimer .usage-fold__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper-100);
  list-style: none;
}

.page-disclaimer .usage-fold__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .usage-fold__summary::before {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 15px;
  color: var(--signal);
}

.page-disclaimer .usage-fold[open] .usage-fold__summary::before {
  content: "−";
}

.page-disclaimer .usage-fold__summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.page-disclaimer .usage-fold .fold__body {
  padding-bottom: 20px;
}

.page-disclaimer .usage-fold .fold__body p {
  max-width: 66ch;
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver-400);
}

.page-disclaimer .usage-fold .fold__body p:last-child {
  margin-bottom: 0;
}

@media (min-width: 860px) {
  .page-disclaimer .usage-revisions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 40px;
  }
}

/* 误用—正确读法对照 */
.page-disclaimer .usage-compare__head {
  display: none;
  padding: 0 18px 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--silver-400);
}

.page-disclaimer .usage-compare {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--ink-950);
}

.page-disclaimer .usage-compare__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 20px 14px;
  border-bottom: 1px solid var(--silver-200);
  transition: background-color 0.18s ease;
}

.page-disclaimer .usage-compare__row:hover {
  background-color: var(--paper-200);
}

.page-disclaimer .usage-compare__cell {
  margin: 0;
  padding-left: 14px;
  font-size: 15.5px;
  line-height: 1.85;
}

.page-disclaimer .usage-compare__cell--wrong {
  border-left: 2px solid var(--signal);
  color: var(--ink-600);
}

.page-disclaimer .usage-compare__cell--right {
  border-left: 2px solid var(--ink-950);
  color: var(--ink-950);
}

@media (min-width: 780px) {
  .page-disclaimer .usage-compare__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0 36px;
  }

  .page-disclaimer .usage-compare__row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0 36px;
    padding: 22px 18px;
  }
}

/* 结尾提示 */
.page-disclaimer .usage-note {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-600);
}

.page-disclaimer .usage-note p {
  margin: 0;
}
<<<END>>>