.page-disclaimer {
  --u-frame: 2px;
  --u-pad: clamp(16px, 3.4vw, 34px);
  --u-gap: clamp(18px, 3vw, 40px);
  padding-top: var(--header-h);
  padding-bottom: calc(var(--pad-block) * 0.7);
  background:
    linear-gradient(180deg, var(--c-night) 0%, var(--c-night) 62%, var(--c-ink) 100%);
  color: var(--c-poster);
  font-family: var(--f-body);
  overflow-x: hidden;
}

.page-disclaimer .usage-crumb {
  padding-top: 18px;
  padding-bottom: 6px;
}

.page-disclaimer .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-steel);
}

.page-disclaimer .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-broadcast);
}

.page-disclaimer .breadcrumb-list a {
  color: var(--c-ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-disclaimer .breadcrumb-list a:hover {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-disclaimer .breadcrumb-current {
  color: var(--c-poster);
}

/* ---------- 首屏框景 ---------- */
.page-disclaimer .usage-hero {
  padding-top: 10px;
  padding-bottom: var(--u-gap);
}

.page-disclaimer .usage-hero-frame {
  position: relative;
  border: var(--u-frame) solid var(--c-cyan);
  padding: var(--u-pad);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(21, 74, 102, 0.7) 0%, rgba(7, 26, 44, 0) 58%),
    var(--c-night);
  box-shadow: 0 0 0 1px rgba(5, 11, 18, 0.9), 0 18px 60px rgba(5, 11, 18, 0.6);
}

.page-disclaimer .usage-hero-frame::before,
.page-disclaimer .usage-hero-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: var(--u-frame) solid var(--c-orange);
  pointer-events: none;
}

.page-disclaimer .usage-hero-frame::before {
  top: -8px;
  left: -8px;
  border-right: 0;
  border-bottom: 0;
}

.page-disclaimer .usage-hero-frame::after {
  right: -8px;
  bottom: -8px;
  border-left: 0;
  border-top: 0;
}

.page-disclaimer .usage-hero-grid {
  display: grid;
  gap: var(--u-gap);
}

.page-disclaimer .eyebrow {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-disclaimer .usage-title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 9vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--c-poster);
}

.page-disclaimer .usage-lead {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-ice);
}

.page-disclaimer .usage-meta {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: var(--hair) solid var(--line-soft);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--c-steel);
}

.page-disclaimer .usage-hero-media {
  position: relative;
  margin: 0;
  border: var(--hair) solid var(--c-broadcast);
  background: var(--c-stand);
  overflow: hidden;
}

.page-disclaimer .usage-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-disclaimer .usage-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 26, 44, 0.15) 0%, rgba(5, 11, 18, 0.82) 100%);
  pointer-events: none;
}

.page-disclaimer .usage-hero-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 14px 16px;
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
  border-top: var(--hair) solid rgba(53, 242, 214, 0.4);
  background: rgba(5, 11, 18, 0.6);
  backdrop-filter: blur(3px);
}

.page-disclaimer .usage-toc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: var(--u-gap);
  border-top: var(--hair) solid var(--line-soft);
  padding-top: 16px;
}

.page-disclaimer .usage-toc-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 8px 10px 0;
  font-size: 14px;
  color: var(--c-poster);
  text-decoration: none;
  border-left: var(--u-frame) solid transparent;
  padding-left: 10px;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-disclaimer .usage-toc-item .mono {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .usage-toc-item:hover {
  background: rgba(21, 74, 102, 0.45);
  border-left-color: var(--c-cyan);
}

.page-disclaimer .usage-toc-item:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
  background: rgba(21, 74, 102, 0.5);
  border-left-color: var(--c-orange);
}

/* ---------- 条款正文 ---------- */
.page-disclaimer .usage-body {
  padding-top: calc(var(--pad-block) * 0.55);
}

.page-disclaimer .usage-body-head {
  border-bottom: var(--hair) solid var(--line-soft);
  padding-bottom: 20px;
  margin-bottom: 8px;
}

.page-disclaimer .section-title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.4vw, 2.4rem);
  letter-spacing: -0.01em;
  color: var(--c-poster);
}

.page-disclaimer .section-note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-steel);
}

.page-disclaimer .clause {
  display: grid;
  gap: 14px;
  padding: 26px 0 24px;
  border-bottom: var(--hair) solid var(--line-soft);
  border-left: var(--u-frame) solid transparent;
  padding-left: 0;
  transition: border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}

.page-disclaimer .clause:hover,
.page-disclaimer .clause:focus-within {
  border-left-color: var(--c-cyan);
  background: rgba(13, 42, 68, 0.35);
  padding-left: 14px;
}

.page-disclaimer .clause-num {
  margin: 0;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(2rem, 7vw, 3.2rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-broadcast);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .clause:hover .clause-num,
.page-disclaimer .clause:focus-within .clause-num {
  -webkit-text-stroke-color: var(--c-cyan);
}

.page-disclaimer .clause-title {
  margin: 0 0 12px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 3.4vw, 1.5rem);
  line-height: 1.35;
  color: var(--c-poster);
}

.page-disclaimer .clause-main p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-ice);
}

.page-disclaimer .clause-main p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .clause-note {
  position: relative;
  padding: 12px 0 0 16px;
  border-top: var(--hair) dashed var(--line-soft);
  border-left: var(--hair) solid var(--c-broadcast);
}

.page-disclaimer .clause-note-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-orange);
}

.page-disclaimer .clause-note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-steel);
}

.page-disclaimer .clause-note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 214, 0.45);
}

.page-disclaimer .clause-note a:hover {
  border-bottom-color: var(--c-cyan);
}

.page-disclaimer .clause-note a:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

/* ---------- 页尾 ---------- */
.page-disclaimer .usage-tail {
  display: grid;
  gap: 18px;
  margin-top: 36px;
  padding: 24px var(--u-pad);
  border: var(--u-frame) solid var(--c-broadcast);
  background:
    linear-gradient(120deg, rgba(21, 74, 102, 0.55) 0%, rgba(7, 26, 44, 0.9) 62%);
}

.page-disclaimer .usage-tail-note {
  margin: 0;
  font-family: var(--f-display);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-poster);
}

.page-disclaimer .usage-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-disclaimer .usage-tail-actions .btn {
  border-radius: 0;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-disclaimer .usage-tail-actions .btn:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(53, 242, 214, 0.22);
}

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

  .page-disclaimer .clause {
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: var(--u-gap);
    align-items: start;
  }

  .page-disclaimer .clause-num {
    grid-row: 1 / span 2;
  }

  .page-disclaimer .clause-note {
    grid-column: 2;
    border-top: var(--hair) dashed var(--line-soft);
    padding-top: 14px;
  }

  .page-disclaimer .usage-tail {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-disclaimer .usage-tail-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .usage-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
  }

  .page-disclaimer .usage-hero-media {
    min-height: 100%;
  }

  .page-disclaimer .usage-hero-media img {
    height: 100%;
    min-height: 320px;
  }

  .page-disclaimer .usage-toc {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }

  .page-disclaimer .clause {
    grid-template-columns: 110px minmax(0, 1fr) 260px;
    column-gap: var(--u-gap);
  }

  .page-disclaimer .clause-num {
    grid-row: auto;
  }

  .page-disclaimer .clause-note {
    grid-column: 3;
    border-top: 0;
    border-left: var(--hair) solid var(--c-broadcast);
    padding: 4px 0 0 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .clause,
  .page-disclaimer .usage-toc-item,
  .page-disclaimer .breadcrumb-list a {
    transition: none;
  }
}
<<<END>>>