.page-disclaimer {
  --clause-num-w: 44px;
  --note-bg: rgba(0, 229, 208, 0.06);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--grid);
  background:
    linear-gradient(150deg, rgba(0, 229, 208, 0.07) 0%, rgba(7, 11, 18, 0) 42%),
    linear-gradient(330deg, rgba(255, 122, 26, 0.05) 0%, rgba(7, 11, 18, 0) 38%);
}

.page-disclaimer .usage-hero .breadcrumb {
  margin-bottom: 20px;
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-disclaimer .usage-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(34px, 8.2vw, 78px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-disclaimer .usage-hero__desc {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-2);
}

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

.page-disclaimer .usage-toc__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

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

.page-disclaimer .usage-toc__link {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 11px 2px 11px 0;
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--fast) var(--snap), padding-left var(--fast) var(--snap);
}

.page-disclaimer .usage-toc__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

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

.page-disclaimer .usage-hero__figure {
  margin: 30px 0 0;
}

.page-disclaimer .usage-hero__figure .media__frame {
  aspect-ratio: 8 / 3;
  overflow: hidden;
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-disclaimer .usage-hero__figure .media__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-2);
}

/* ---------- 条款章节 ---------- */
.page-disclaimer .usage-clause {
  padding: 36px 0;
  border-bottom: 1px solid var(--grid);
  scroll-margin-top: calc(var(--band-h) + 18px);
  transition: background var(--fast) var(--snap);
}

.page-disclaimer .usage-clause:target {
  background: linear-gradient(90deg, rgba(0, 229, 208, 0.07) 0%, rgba(7, 11, 18, 0) 58%);
}

.page-disclaimer .usage-clause__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
}

.page-disclaimer .usage-clause__head .section__index {
  font-family: var(--mono);
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-disclaimer .usage-clause__head .section__title {
  margin: 0;
  font-size: clamp(22px, 4.6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
}

.page-disclaimer .usage-clause__desc {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-2);
}

.page-disclaimer .clause-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: var(--clause-num-w) minmax(0, 1fr);
  gap: 10px;
  padding: 16px 0;
  border-bottom: 1px solid var(--grid);
  transition: background var(--fast) var(--snap);
}

.page-disclaimer .clause:hover {
  background: rgba(23, 34, 47, 0.42);
}

.page-disclaimer .clause__num {
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .clause__text {
  margin: 0;
  min-width: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-2);
  overflow-wrap: break-word;
}

.page-disclaimer .clause__text strong {
  color: var(--text);
  font-weight: 700;
}

/* ---------- 提示框 ---------- */
.page-disclaimer .note-box {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  margin-top: 22px;
  padding: 15px 16px;
  border: 1px solid rgba(0, 229, 208, 0.48);
  background: var(--note-bg);
}

.page-disclaimer .note-box__tag {
  padding: 2px 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  line-height: 1.5;
  color: var(--accent);
  border: 1px solid var(--accent);
  white-space: nowrap;
}

.page-disclaimer .note-box p {
  margin: 0;
  min-width: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

/* ---------- 折叠示例 ---------- */
.page-disclaimer .clause-detail {
  margin-top: 22px;
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-disclaimer .clause-detail summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  font-size: 14.5px;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color var(--fast) var(--snap);
}

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

.page-disclaimer .clause-detail summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 17px;
  line-height: 1;
  color: var(--accent);
}

.page-disclaimer .clause-detail[open] summary::after {
  content: "\2013";
}

.page-disclaimer .clause-detail summary:hover,
.page-disclaimer .clause-detail summary:focus-visible {
  color: var(--accent);
}

.page-disclaimer .clause-detail__body {
  padding: 16px;
  border-top: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-2);
}

.page-disclaimer .clause-detail__body p {
  margin: 0;
}

.page-disclaimer .clause-detail__body p + p {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--grid);
}

/* ---------- 结尾反馈入口 ---------- */
.page-disclaimer .usage-cta {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--grid);
  padding: 40px 0 48px;
  background: linear-gradient(118deg, rgba(0, 229, 208, 0.1) 0%, rgba(255, 122, 26, 0.06) 52%, rgba(7, 11, 18, 0) 82%);
}

.page-disclaimer .usage-cta::before {
  content: "";
  position: absolute;
  top: -46%;
  right: -12%;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--accent-soft) 0%, rgba(0, 229, 208, 0) 72%);
  opacity: 0.14;
  transform: rotate(26deg);
  pointer-events: none;
}

.page-disclaimer .usage-cta__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.page-disclaimer .usage-cta__text h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 5.2vw, 40px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-disclaimer .usage-cta__text p {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-disclaimer .usage-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .usage-cta__actions .btn {
  flex: 1 1 auto;
  text-align: center;
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 419px) {
  .page-disclaimer .usage-toc__link {
    grid-template-columns: 32px minmax(0, 1fr);
    font-size: 14px;
  }

  .page-disclaimer .clause {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .page-disclaimer .note-box {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 880px) {
  .page-disclaimer .usage-hero {
    padding: 46px 0 42px;
  }

  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: start;
  }

  .page-disclaimer .usage-hero__side {
    border-top: 0;
    border-left: 1px solid var(--grid);
    padding-top: 4px;
    padding-left: 28px;
  }

  .page-disclaimer .usage-hero__desc {
    font-size: 17px;
  }

  .page-disclaimer .usage-hero__figure {
    margin-top: 40px;
  }

  .page-disclaimer .usage-clause {
    padding: 52px 0;
    --clause-num-w: 72px;
  }

  .page-disclaimer .usage-clause__head .section__index {
    font-size: 28px;
  }

  .page-disclaimer .usage-clause__desc {
    font-size: 15.5px;
    margin-top: 16px;
  }

  .page-disclaimer .clause {
    gap: 22px;
    padding: 20px 0;
  }

  .page-disclaimer .clause__num {
    font-size: 13px;
    padding-top: 4px;
  }

  .page-disclaimer .clause__text {
    font-size: 16px;
  }

  .page-disclaimer .clause-detail__body {
    padding: 20px 22px;
  }

  .page-disclaimer .note-box {
    padding: 18px 22px;
  }

  .page-disclaimer .usage-cta {
    padding: 56px 0 64px;
  }

  .page-disclaimer .usage-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
    align-items: end;
  }

  .page-disclaimer .usage-cta__actions .btn {
    flex: 0 0 auto;
  }
}
<<<END>>>
</main>