.page-disclaimer {
  background: var(--mist);
  color: var(--ink);
}

/* ---------- 首屏框景 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  overflow: hidden;
  background: var(--grad-carbon);
  color: var(--on-dark);
  padding-block: clamp(20px, 4vw, 36px) clamp(36px, 6vw, 72px);
}

.page-disclaimer .usage-crumb {
  margin-bottom: clamp(14px, 2.4vw, 24px);
  color: var(--on-dark-soft);
}

.page-disclaimer .usage-crumb a {
  color: var(--on-dark-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-disclaimer .usage-crumb a:hover,
.page-disclaimer .usage-crumb a:focus-visible {
  color: #fff;
  border-color: var(--orange);
}

.page-disclaimer .usage-hero__frame {
  position: relative;
  border: 1px solid var(--line-strong);
  padding: clamp(20px, 3.6vw, 44px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(28, 105, 212, .3), transparent 62%),
    rgba(21, 27, 35, .55);
}

.page-disclaimer .usage-hero__corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--ice-b);
  opacity: .9;
}
.page-disclaimer .usage-hero__corner--tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.page-disclaimer .usage-hero__corner--tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.page-disclaimer .usage-hero__corner--bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.page-disclaimer .usage-hero__corner--br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.page-disclaimer .usage-hero__lines {
  position: absolute;
  inset: 0 0 auto auto;
  width: min(560px, 78%);
  height: auto;
  pointer-events: none;
  opacity: .8;
}

.page-disclaimer .usage-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 46rem;
}

.page-disclaimer .usage-hero__eyebrow {
  color: var(--ice-b);
  letter-spacing: .22em;
  margin-bottom: 12px;
}

.page-disclaimer .usage-hero__title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -.01em;
  margin: 0 0 clamp(14px, 2vw, 20px);
  color: #fff;
}

.page-disclaimer .usage-hero__lead {
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--on-dark-soft);
  margin: 0;
  max-width: 40em;
}

.page-disclaimer .usage-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-disclaimer .usage-hero__media {
  position: relative;
  z-index: 1;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.page-disclaimer .usage-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

/* ---------- 主体两栏 ---------- */
.page-disclaimer .usage-body {
  padding-block: clamp(28px, 4.6vw, 56px) clamp(40px, 6vw, 80px);
}

.page-disclaimer .usage-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 30px);
  align-items: start;
}

/* ---------- 侧边目录 ---------- */
.page-disclaimer .usage-toc {
  padding: 18px 20px 20px;
  border-top: 3px solid var(--blue);
}

.page-disclaimer .usage-toc__title {
  color: var(--blue);
  letter-spacing: .2em;
  margin: 0 0 12px;
}

.page-disclaimer .usage-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-disclaimer .usage-toc__list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 8px 8px 6px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-soft);
  text-decoration: none;
  border-left: 2px solid var(--line-ink);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-disclaimer .usage-toc__list a span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--blue);
  letter-spacing: .06em;
}

.page-disclaimer .usage-toc__list a:hover,
.page-disclaimer .usage-toc__list a:focus-visible {
  color: var(--ink);
  border-left-color: var(--orange);
  background: rgba(28, 105, 212, .06);
}

.page-disclaimer .usage-toc__foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-ink);
}

.page-disclaimer .usage-toc__foot p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ---------- 条款卡 ---------- */
.page-disclaimer .usage-content {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  min-width: 0;
}

.page-disclaimer .usage-clause {
  padding: clamp(20px, 3.2vw, 34px);
  border-left: 3px solid transparent;
  scroll-margin-top: 90px;
}

.page-disclaimer .usage-clause:target {
  border-left-color: var(--blue);
  box-shadow: 0 0 0 1px rgba(28, 105, 212, .28), var(--shadow-1);
}

.page-disclaimer .usage-clause__index {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink-soft);
}

.page-disclaimer .usage-clause__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--blue);
  letter-spacing: 0;
}

.page-disclaimer .usage-clause h2 {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.28;
  letter-spacing: -.005em;
  margin: 0 0 14px;
  color: var(--ink);
}

.page-disclaimer .usage-clause p {
  margin: 0 0 12px;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.page-disclaimer .usage-clause a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(28, 105, 212, .4);
}

.page-disclaimer .usage-clause a:hover,
.page-disclaimer .usage-clause a:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

.page-disclaimer .usage-clause strong {
  color: var(--ink);
}

.page-disclaimer .usage-callout {
  margin-top: 16px;
  padding: 14px 16px;
  border-left: 2px solid var(--orange);
  background: rgba(255, 107, 26, .07);
}

.page-disclaimer .usage-callout p {
  margin: 0;
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.72;
}

.page-disclaimer .usage-list,
.page-disclaimer .usage-steps {
  margin: 0 0 14px;
  padding-left: 1.15em;
  color: var(--ink-soft);
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.78;
}

.page-disclaimer .usage-list li,
.page-disclaimer .usage-steps li {
  margin-bottom: 8px;
}

.page-disclaimer .usage-steps {
  margin-bottom: 0;
  font-size: 15px;
}

/* ---------- 折叠说明 ---------- */
.page-disclaimer .usage-more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-ink);
}

.page-disclaimer .usage-more summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--blue);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}

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

.page-disclaimer .usage-more summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--orange);
}

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

.page-disclaimer .usage-more summary:hover,
.page-disclaimer .usage-more summary:focus-visible {
  color: var(--orange);
}

.page-disclaimer .usage-more p,
.page-disclaimer .usage-more .usage-steps {
  margin-top: 10px;
}

/* ---------- 卡片内按钮组 ---------- */
.page-disclaimer .usage-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-disclaimer .usage-links a {
  border-bottom: 0;
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-disclaimer .usage-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 40px);
  }

  .page-disclaimer .usage-toc {
    position: sticky;
    top: 24px;
  }

  .page-disclaimer .usage-hero__frame {
    padding-right: clamp(32px, 5vw, 60px);
  }

  .page-disclaimer .usage-hero__inner {
    padding-right: 220px;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .usage-hero__title {
    font-size: 66px;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .page-disclaimer .usage-toc,
  .page-disclaimer .usage-links,
  .page-disclaimer .usage-hero__lines {
    display: none;
  }

  .page-disclaimer,
  .page-disclaimer .usage-hero {
    background: #fff;
    color: #000;
  }

  .page-disclaimer .usage-hero__frame {
    border-color: #999;
    background: none;
    padding: 0;
  }

  .page-disclaimer .usage-clause {
    box-shadow: none;
    border-left: 2px solid #000;
    break-inside: avoid;
  }

  .page-disclaimer .usage-more {
    display: block;
  }
}
<<<PAGE_CSS_END>>>