.page-disclaimer {
  --u-focus: var(--qing);
  padding-bottom: 72px;
}

.page-disclaimer a:focus-visible,
.page-disclaimer button:focus-visible {
  outline: 2px solid var(--u-focus);
  outline-offset: 2px;
}

/* 面包屑 */
.page-disclaimer .crumb {
  padding-top: 22px;
}

.page-disclaimer .crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-disclaimer .crumb__list a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-disclaimer .crumb__list a:hover {
  color: var(--qing);
  border-bottom-color: var(--qing);
}

/* 标题区 */
.page-disclaimer .usage-head {
  display: grid;
  gap: 28px;
  padding: 22px 0 36px;
  border-bottom: 1px solid var(--grid);
}

.page-disclaimer .usage-head__text {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-disclaimer .usage-head__title {
  margin: 0;
  font-size: clamp(2rem, 5.4vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-disclaimer .lede {
  margin: 0;
  max-width: var(--measure);
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--white);
}

.page-disclaimer .usage-head__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--grid-soft);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

.page-disclaimer .usage-head__fig {
  margin: 0;
}

.page-disclaimer .usage-head__fig img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--grid);
  background: var(--panel);
  object-fit: cover;
}

/* 区块头 */
.page-disclaimer .section {
  padding: 44px 0;
}

.page-disclaimer .sec-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--grid);
}

.page-disclaimer .sec-head__title {
  margin: 0;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .sec-head__meta {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--qing);
}

/* 速查表 */
.page-disclaimer .table-wrap {
  overflow-x: auto;
  border: 1px solid var(--grid);
}

.page-disclaimer .usage-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 15.5px;
}

.page-disclaimer .usage-table th {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--mute);
  background: var(--panel);
  border-bottom: 1px solid var(--grid);
}

.page-disclaimer .usage-table td {
  padding: 14px 16px;
  vertical-align: top;
  line-height: 1.72;
  color: var(--white);
  border-bottom: 1px solid var(--grid-soft);
  transition: background-color var(--tick) ease;
}

.page-disclaimer .usage-table tr:last-child td {
  border-bottom: 0;
}

.page-disclaimer .usage-table td:first-child {
  width: 9.5em;
  font-family: var(--mono);
  color: var(--qing);
  white-space: nowrap;
}

.page-disclaimer .usage-table tbody tr:hover td {
  background: rgba(23, 179, 196, 0.08);
}

.page-disclaimer .usage-note {
  margin: 18px 0 0;
  max-width: var(--measure);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mute);
}

.page-disclaimer .usage-note a {
  color: var(--qing);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 179, 196, 0.45);
}

/* 目录 + 条款 */
.page-disclaimer .usage-split {
  display: grid;
  gap: 26px;
}

.page-disclaimer .usage-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding: 14px 0;
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-disclaimer .usage-toc__label {
  flex-basis: 100%;
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-disclaimer .usage-toc a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--mute);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}

.page-disclaimer .usage-toc a:hover {
  color: var(--qing);
  border-bottom-color: var(--qing);
}

.page-disclaimer .usage-clause {
  padding: 26px 0;
  border-bottom: 1px solid var(--grid);
  scroll-margin-top: calc(var(--head-h) + 20px);
}

.page-disclaimer .usage-clause:first-child {
  padding-top: 0;
}

.page-disclaimer .usage-clause__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .usage-clause__no {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--qing);
}

.page-disclaimer .usage-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: var(--measure);
}

.page-disclaimer .usage-list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--white);
}

.page-disclaimer .usage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 9px;
  height: 1px;
  background: var(--qing);
}

.page-disclaimer .usage-list a,
.page-disclaimer .usage-clause__foot a {
  color: var(--qing);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 179, 196, 0.45);
}

.page-disclaimer .usage-clause__foot {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

/* 直角描边联系条 */
.page-disclaimer .usage-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: 14px;
  padding: 13px 16px;
  border: 1px solid var(--grid);
}

.page-disclaimer .usage-contact__k {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-disclaimer .usage-contact__v {
  font-size: 14.5px;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-disclaimer .copy-btn {
  margin-left: auto;
  appearance: none;
  padding: 7px 12px;
  background: transparent;
  border: 1px solid var(--qing);
  color: var(--qing);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color var(--tick) ease, color var(--tick) ease, border-color var(--tick) ease;
}

.page-disclaimer .copy-btn:hover {
  background: var(--qing);
  color: var(--qing-ink);
}

.page-disclaimer .copy-btn.is-copied {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--qing-ink);
}

/* 收束行 */
.page-disclaimer .usage-trust {
  margin: 40px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--qing);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

/* 桌面端 */
@media (min-width: 900px) {
  .page-disclaimer .usage-head {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 48px;
    align-items: end;
    padding: 30px 0 44px;
  }

  .page-disclaimer .usage-head__fig img {
    aspect-ratio: 3 / 2;
  }

  .page-disclaimer .section {
    padding: 52px 0;
  }
}

@media (min-width: 980px) {
  .page-disclaimer .usage-split {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 56px;
  }

  .page-disclaimer .usage-toc {
    display: block;
    align-self: start;
    position: sticky;
    top: calc(var(--head-h) + 28px);
    padding: 0 0 0 18px;
    border-top: 0;
    border-bottom: 0;
    border-left: 1px solid var(--grid);
  }

  .page-disclaimer .usage-toc__label {
    display: block;
    margin-bottom: 10px;
  }

  .page-disclaimer .usage-toc a {
    display: block;
    padding: 9px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-table td,
  .page-disclaimer .copy-btn {
    transition: none;
  }
}