.page-disclaimer {
  display: block;
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-disclaimer :focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 7vw, 5rem) 0 clamp(2.5rem, 7vw, 4.5rem);
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(45, 125, 255, .20), transparent 62%),
    radial-gradient(90% 70% at 94% 10%, rgba(255, 106, 26, .18), transparent 64%),
    linear-gradient(160deg, var(--ink) 0%, var(--ink-deep) 56%, var(--ink-soft) 100%);
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  width: min(64vw, 540px);
  aspect-ratio: 1 / 1;
  top: -22%;
  right: -14%;
  border: 1px solid rgba(201, 209, 217, .13);
  border-radius: 50%;
  pointer-events: none;
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 46%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 106, 26, 0));
  pointer-events: none;
}

.page-disclaimer .usage-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 840px;
}

.page-disclaimer .usage-hero .eyebrow {
  color: var(--orange);
  letter-spacing: .18em;
  text-transform: uppercase;
}

.page-disclaimer .usage-hero__title {
  margin: .55rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-disclaimer .usage-hero__lede {
  margin: 1.35rem 0 0;
  max-width: 60ch;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.9;
  color: var(--silver);
}

.page-disclaimer .usage-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.5rem;
  margin: 1.9rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(201, 209, 217, .72);
}

.page-disclaimer .usage-hero__meta li {
  display: flex;
  align-items: center;
  gap: .55rem;
}

.page-disclaimer .usage-hero__meta li::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--orange);
}

.page-disclaimer .usage-hero__media {
  position: relative;
  z-index: 1;
  margin: clamp(2.2rem, 6vw, 3.5rem) 0 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
}

.page-disclaimer .usage-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, rgba(255, 106, 26, .14), transparent 44%);
}

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

/* ---------- 条款目录 ---------- */
.page-disclaimer .usage-toc {
  background: var(--ink);
  padding: clamp(1.6rem, 4vw, 2.5rem) 0 clamp(1.2rem, 3vw, 1.8rem);
}

.page-disclaimer .usage-toc__title {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(201, 209, 217, .6);
}

.page-disclaimer .usage-toc__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-toc__link {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding: .9rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--paper);
  text-decoration: none;
  transition: border-color .25s var(--ease), background-color .25s var(--ease), transform .25s var(--ease);
}

.page-disclaimer .usage-toc__link:hover {
  border-color: var(--orange);
  background: rgba(255, 106, 26, .09);
  transform: translateY(-2px);
}

.page-disclaimer .usage-toc__num {
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-disclaimer .usage-toc__text {
  font-size: .98rem;
  font-weight: 500;
}

/* ---------- 条文主体 ---------- */
.page-disclaimer .usage-body {
  background: var(--paper);
  color: var(--black);
  border-top: 3px solid var(--orange);
  padding: clamp(2.4rem, 6vw, 5rem) 0 clamp(2.6rem, 7vw, 5.5rem);
}

.page-disclaimer .usage-chapter {
  position: relative;
  padding-bottom: clamp(1.8rem, 4.5vw, 3rem);
  margin-bottom: clamp(1.8rem, 4.5vw, 3rem);
  border-bottom: 1px solid rgba(11, 15, 13, .12);
  scroll-margin-top: calc(var(--topbar-h) + 1.5rem);
}

.page-disclaimer .usage-chapter:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .usage-chapter__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 8vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--orange);
}

.page-disclaimer .usage-chapter__title {
  margin: .45rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  line-height: 1.3;
  color: var(--ink);
}

.page-disclaimer .usage-chapter__intro {
  margin: 0 0 1.5rem;
  max-width: 66ch;
  font-size: 1.0625rem;
  line-height: 1.9;
  color: rgba(11, 15, 13, .76);
}

.page-disclaimer .usage-chapter__body a {
  color: var(--grass);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color .2s var(--ease);
}

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

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

.page-disclaimer .usage-clause {
  display: grid;
  grid-template-columns: 2.9rem minmax(0, 1fr);
  align-items: start;
  border-bottom: 1px dashed rgba(11, 15, 13, .13);
}

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

.page-disclaimer .usage-clause__no {
  padding-top: .3rem;
  font-size: .78rem;
  letter-spacing: .05em;
  color: var(--grass);
}

.page-disclaimer .usage-clause__text {
  margin: 0;
  padding: .95rem 0 1rem;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(11, 15, 13, .84);
}

.page-disclaimer .usage-mark {
  font-weight: 600;
  color: var(--ink);
  background: linear-gradient(transparent 60%, rgba(255, 106, 26, .34) 60%);
  padding: 0 .12em;
}

/* ---------- 展开条款 ---------- */
.page-disclaimer .usage-more {
  margin-top: 1.5rem;
  border: 1px solid rgba(11, 15, 13, .14);
  border-radius: var(--radius-sm);
  background: rgba(15, 92, 63, .05);
  overflow: hidden;
}

.page-disclaimer .usage-more__summary {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .95rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .98rem;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-disclaimer .usage-more__summary::before {
  content: "+";
  flex: none;
  width: 1.1rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--orange);
  text-align: center;
  transition: transform .25s var(--ease);
}

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

.page-disclaimer .usage-more__summary:hover {
  background: rgba(255, 106, 26, .08);
}

.page-disclaimer .usage-more__body {
  padding: 0 1.15rem 1.1rem;
}

.page-disclaimer .usage-more__body p {
  margin: 0 0 .65rem;
  font-size: .95rem;
  line-height: 1.85;
  color: rgba(11, 15, 13, .78);
}

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

/* ---------- 相关入口 ---------- */
.page-disclaimer .usage-next {
  position: relative;
  overflow: hidden;
  padding: clamp(2.4rem, 6vw, 4.5rem) 0 clamp(2.8rem, 8vw, 5rem);
  background: linear-gradient(170deg, var(--ink-soft), var(--ink-deep) 78%);
}

.page-disclaimer .usage-next::after {
  content: "";
  position: absolute;
  width: min(70vw, 620px);
  aspect-ratio: 1 / 1;
  right: -20%;
  bottom: -62%;
  border: 1px solid rgba(45, 125, 255, .22);
  border-radius: 50%;
  pointer-events: none;
}

.page-disclaimer .usage-next__title {
  position: relative;
  z-index: 1;
  margin: 0 0 1.4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  color: var(--paper);
}

.page-disclaimer .usage-next__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
}

.page-disclaimer .usage-next__link {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  padding: 1.1rem 1.15rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(6, 37, 28, .55);
  color: var(--paper);
  text-decoration: none;
  transition: border-color .25s var(--ease), transform .25s var(--ease), background-color .25s var(--ease);
}

.page-disclaimer .usage-next__link:hover {
  border-color: var(--orange);
  background: rgba(6, 37, 28, .82);
  transform: translateY(-3px);
}

.page-disclaimer .usage-next__tag {
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-disclaimer .usage-next__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--paper);
}

.page-disclaimer .usage-next__desc {
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(201, 209, 217, .78);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .usage-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .usage-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .usage-toc__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-disclaimer .usage-chapter {
    display: grid;
    grid-template-columns: minmax(150px, 210px) minmax(0, 1fr);
    gap: clamp(1.5rem, 4vw, 3.5rem);
  }

  .page-disclaimer .usage-chapter__head {
    align-self: start;
  }

  .page-disclaimer .usage-chapter__num {
    font-size: clamp(2.8rem, 4.4vw, 3.8rem);
  }

  .page-disclaimer .usage-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>