.page-disclaimer {
  --usage-sticky-top: 124px;
  --usage-surface: rgba(30, 38, 51, 0.66);
  background: var(--ink);
  color: var(--bone);
  overflow-x: clip;
}

.page-disclaimer .usage-top-anchor {
  display: block;
  height: 0;
}

/* ---------- 页头 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 5vw, 46px) 0 clamp(34px, 6vw, 66px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 110% at 100% 0%, rgba(122, 92, 255, 0.16), transparent 62%),
    radial-gradient(95% 95% at 0% 100%, rgba(255, 90, 31, 0.18), transparent 64%),
    var(--ink-deep);
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: -26%;
  z-index: -1;
  width: min(620px, 78%);
  height: 150%;
  transform: rotate(11deg);
  clip-path: polygon(22% 0, 100% 0, 78% 100%, 0 100%);
  background: linear-gradient(158deg, rgba(255, 90, 31, 0.26), rgba(181, 46, 18, 0.12) 55%, transparent 80%);
  pointer-events: none;
}

.page-disclaimer .usage-hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}

.page-disclaimer .usage-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.9);
}

.page-disclaimer .usage-hero-inner {
  position: relative;
}

.page-disclaimer .usage-hero .breadcrumbs {
  margin-bottom: 18px;
}

.page-disclaimer .usage-hero .eyebrow {
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-disclaimer .usage-hero .display-title {
  margin: 10px 0 16px;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.01em;
  line-height: 1.05;
  background: linear-gradient(96deg, var(--bone) 24%, var(--gold) 88%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-disclaimer .usage-hero .lede {
  max-width: 62ch;
  margin: 0;
  color: #CDD5E3;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-disclaimer .usage-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* ---------- 主体栅格 ---------- */
.page-disclaimer .usage-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 条款索引 ---------- */
.page-disclaimer .usage-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-disclaimer .usage-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 12px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 90, 31, 0.5) transparent;
}

.page-disclaimer .usage-index-list::-webkit-scrollbar {
  height: 4px;
}

.page-disclaimer .usage-index-list::-webkit-scrollbar-thumb {
  background: rgba(255, 90, 31, 0.5);
  border-radius: 4px;
}

.page-disclaimer .usage-index-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1.35;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-disclaimer .usage-index-link:hover,
.page-disclaimer .usage-index-link:focus-visible {
  color: var(--bone);
  border-color: rgba(255, 90, 31, 0.6);
  background: rgba(255, 90, 31, 0.1);
}

.page-disclaimer .usage-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.06em;
}

/* ---------- 条款卡片 ---------- */
.page-disclaimer .usage-clause {
  position: relative;
  margin-bottom: clamp(16px, 2.6vw, 24px);
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--usage-surface), rgba(11, 13, 18, 0.4));
  scroll-margin-top: 130px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-disclaimer .usage-clause:target {
  border-color: rgba(57, 230, 255, 0.5);
  box-shadow: 0 0 0 1px rgba(57, 230, 255, 0.22), 0 20px 44px -26px rgba(0, 0, 0, 0.9);
}

.page-disclaimer .usage-clause-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-clause-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-disclaimer .usage-clause h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--bone);
}

.page-disclaimer .usage-clause p {
  margin: 0 0 12px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

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

.page-disclaimer .usage-k {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.02em;
  color: var(--cyan);
}

/* ---------- 细线列表 ---------- */
.page-disclaimer .usage-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-list li {
  position: relative;
  padding: 11px 0 11px 20px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px dashed rgba(168, 179, 199, 0.14);
}

.page-disclaimer .usage-list li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-disclaimer .usage-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 1.42em;
  width: 7px;
  height: 7px;
  transform: rotate(45deg);
  background: var(--flame);
  opacity: 0.88;
}

.page-disclaimer .usage-list li:first-child::before {
  top: 1.06em;
}

/* ---------- 关键提示 ---------- */
.page-disclaimer .usage-note {
  margin-top: 16px;
  padding: 13px 16px;
  border-left: 3px solid var(--flame);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 90, 31, 0.08);
  color: #E6EBF3;
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- 折叠说明 ---------- */
.page-disclaimer .usage-fold {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(30, 38, 51, 0.5);
}

.page-disclaimer .usage-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  color: var(--bone);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
}

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

.page-disclaimer .usage-fold > summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-disclaimer .usage-fold[open] > summary::after {
  content: "−";
}

.page-disclaimer .usage-fold[open] > summary {
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-fold-body {
  padding: 14px 16px 4px;
}

.page-disclaimer .usage-fold-body p {
  margin: 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.82;
}

/* ---------- 相关入口 ---------- */
.page-disclaimer .usage-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 20px;
}

.page-disclaimer .usage-links a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--flame);
  border-radius: var(--radius);
  background: rgba(255, 90, 31, 0.06);
  color: var(--bone);
  font-size: 14.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.page-disclaimer .usage-links a:hover,
.page-disclaimer .usage-links a:focus-visible {
  background: rgba(255, 90, 31, 0.15);
  border-left-color: var(--gold);
  transform: translateY(-2px);
}

/* ---------- 返回顶部 ---------- */
.page-disclaimer .usage-backtop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 10px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--bone);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.page-disclaimer .usage-backtop:hover,
.page-disclaimer .usage-backtop:focus-visible {
  border-color: var(--cyan);
  background: rgba(57, 230, 255, 0.1);
  color: var(--cyan);
}

.page-disclaimer a:focus-visible,
.page-disclaimer summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .usage-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(36px, 4vw, 60px);
  }

  .page-disclaimer .usage-index {
    position: sticky;
    top: var(--usage-sticky-top);
    align-self: start;
  }

  .page-disclaimer .usage-index-list {
    display: grid;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-disclaimer .usage-index-link {
    padding: 9px 0 9px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    white-space: normal;
    background: transparent;
    font-size: 13.5px;
  }

  .page-disclaimer .usage-index-link:hover,
  .page-disclaimer .usage-index-link:focus-visible {
    border-left-color: var(--flame);
    background: linear-gradient(90deg, rgba(255, 90, 31, 0.12), transparent 70%);
  }

  .page-disclaimer .usage-clause {
    padding: 30px 32px;
  }

  .page-disclaimer .usage-hero::after {
    right: -6%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-index-link,
  .page-disclaimer .usage-links a,
  .page-disclaimer .usage-backtop,
  .page-disclaimer .usage-clause {
    transition: none;
  }

  .page-disclaimer .usage-links a:hover,
  .page-disclaimer .usage-links a:focus-visible {
    transform: none;
  }
}
<<<END>>>