.page-disclaimer {
  --toc-w: 264px;
  display: block;
  padding-bottom: 96px;
}

.page-disclaimer .mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-disclaimer .hl {
  font-family: var(--font-mono);
  color: var(--lime);
  font-size: .96em;
  letter-spacing: .01em;
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .crumbs {
  margin: 20px 0 0;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  padding: 26px 0 40px;
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-disclaimer .usage-hero .eyebrow {
  margin: 0;
  color: var(--lime);
  font-size: 12px;
  letter-spacing: .18em;
}

.page-disclaimer .usage-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--board);
}

.page-disclaimer .usage-hero .lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.78;
  color: var(--ink);
}

.page-disclaimer .usage-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--grid);
  background: var(--stand);
  overflow: hidden;
}

.page-disclaimer .usage-hero__figure::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--lime) 0 18px,
    transparent 18px 34px
  );
  opacity: .85;
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-disclaimer .usage-hero__meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 28px 0 0;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-disclaimer .usage-meta {
  background: var(--pitch);
  padding: 12px 16px;
}

.page-disclaimer .usage-meta dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--stone);
}

.page-disclaimer .usage-meta dd {
  margin: 6px 0 0;
  font-size: 20px;
  color: var(--lime);
}

/* ---------- 左右分栏 ---------- */
.page-disclaimer .usage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  margin-top: 44px;
}

/* ---------- 侧栏目录 ---------- */
.page-disclaimer .usage-toc {
  border-top: 3px solid var(--lime);
  padding-top: 16px;
}

.page-disclaimer .usage-toc__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--stone);
}

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

.page-disclaimer .usage-toc__list li {
  border-top: 1px solid var(--grid);
}

.page-disclaimer .usage-toc__list li:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-disclaimer .usage-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 4px;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.45;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-disclaimer .usage-toc__list a:hover,
.page-disclaimer .usage-toc__list a:focus-visible {
  color: var(--lime);
  padding-left: 8px;
}

.page-disclaimer .usage-toc__list .mono {
  flex: none;
  font-size: 12px;
  color: var(--stone);
}

.page-disclaimer .usage-toc__list a:hover .mono {
  color: var(--lime);
}

.page-disclaimer .usage-toc__ver {
  margin-top: 24px;
  padding: 14px 16px;
  background: var(--stand);
  border-left: 3px solid var(--orange);
}

.page-disclaimer .usage-toc__ver-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-disclaimer .usage-toc__ver-num {
  margin: 6px 0 0;
  font-size: 24px;
  color: var(--orange);
}

.page-disclaimer .usage-toc__ver-note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 条款主体 ---------- */
.page-disclaimer .usage-main {
  min-width: 0;
}

.page-disclaimer .usage-clause {
  position: relative;
  padding: 30px 0 34px;
  border-top: 1px solid var(--grid);
}

.page-disclaimer .usage-clause::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 56px;
  height: 3px;
  background: var(--lime);
}

.page-disclaimer .usage-clause::after {
  content: "";
  position: absolute;
  top: -1px;
  right: 0;
  width: 150px;
  max-width: 40%;
  height: 5px;
  background: repeating-linear-gradient(
    90deg,
    var(--grid) 0 1px,
    transparent 1px 9px
  );
}

.page-disclaimer .usage-clause__idx {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--lime);
}

.page-disclaimer .usage-clause__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 4.6vw, 28px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--board);
}

.page-disclaimer .usage-clause__lede {
  margin: 0 0 18px;
  max-width: 64ch;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
}

.page-disclaimer .usage-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .usage-list li {
  position: relative;
  padding: 12px 0 12px 26px;
  border-top: 1px solid var(--grid);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.page-disclaimer .usage-list li:first-child {
  border-top: 0;
}

.page-disclaimer .usage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 12px;
  height: 1px;
  background: var(--lime);
}

.page-disclaimer .usage-list a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

.page-disclaimer .usage-list a:hover {
  color: var(--orange);
}

/* ---------- 折叠面板 ---------- */
.page-disclaimer .usage-details {
  margin-top: 20px;
  border: 1px solid var(--grid);
  background: var(--stand);
}

.page-disclaimer .usage-details summary {
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 15px;
  letter-spacing: .01em;
  color: var(--lime);
}

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

.page-disclaimer .usage-details summary::after {
  content: "+";
  float: right;
  font-family: var(--font-mono);
  color: var(--stone);
}

.page-disclaimer .usage-details[open] summary::after {
  content: "–";
}

.page-disclaimer .usage-details__body {
  padding: 0 16px 18px;
  border-top: 1px solid var(--grid);
}

.page-disclaimer .usage-details__body p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 延伸阅读 ---------- */
.page-disclaimer .usage-related {
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--grid);
}

.page-disclaimer .usage-related__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--board);
}

.page-disclaimer .usage-related__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 18px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-disclaimer .usage-related__item {
  display: block;
  padding: 18px;
  background: var(--pitch);
  text-decoration: none;
  color: var(--ink);
  transition: background .22s var(--ease);
}

.page-disclaimer .usage-related__item:hover,
.page-disclaimer .usage-related__item:focus-visible {
  background: var(--stand);
}

.page-disclaimer .usage-related__item b {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-head);
  font-size: 16px;
  letter-spacing: -.005em;
  color: var(--board);
}

.page-disclaimer .usage-related__item span {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-disclaimer .usage-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-disclaimer .usage-related__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .usage-list li {
    padding-right: 32px;
  }
}

@media (min-width: 980px) {
  .page-disclaimer {
    padding-bottom: 120px;
  }

  .page-disclaimer .usage-hero {
    padding: 34px 0 52px;
  }

  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 52px;
  }

  .page-disclaimer .usage-layout {
    grid-template-columns: var(--toc-w) minmax(0, 1fr);
    gap: 64px;
    margin-top: 60px;
  }

  .page-disclaimer .usage-toc {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
    max-height: calc(100vh - var(--bar-h) - 56px);
    overflow-y: auto;
  }

  .page-disclaimer .usage-clause {
    padding: 38px 0 42px;
  }

  .page-disclaimer .usage-clause__idx {
    float: left;
    width: 84px;
    margin: 6px 0 0;
  }

  .page-disclaimer .usage-clause__title,
  .page-disclaimer .usage-clause__lede,
  .page-disclaimer .usage-list,
  .page-disclaimer .usage-details {
    margin-left: 84px;
  }

  .page-disclaimer .usage-clause__title {
    margin-top: 0;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}

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