.page-disclaimer {
  --usage-line: rgba(11, 59, 58, 0.14);
  --usage-line-soft: rgba(11, 59, 58, 0.07);
  --usage-body: rgba(11, 59, 58, 0.78);
  --usage-body-dim: rgba(11, 59, 58, 0.6);
  background: var(--mist);
  color: var(--ink);
  padding-bottom: 80px;
  overflow-x: hidden;
}

.page-disclaimer .breadcrumbs {
  padding-top: 20px;
}

.page-disclaimer .breadcrumbs ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--usage-body-dim);
}

.page-disclaimer .breadcrumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--gold);
}

.page-disclaimer .breadcrumbs a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-disclaimer .breadcrumbs a:hover,
.page-disclaimer .breadcrumbs a:focus-visible {
  border-bottom-color: var(--gold);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .usage-hero {
  position: relative;
  padding: 26px 0 0;
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  top: -40px;
  left: -24px;
  right: -24px;
  height: 420px;
  background-image:
    linear-gradient(to right, var(--usage-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--usage-line-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(to bottom, #000 40%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 40%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .usage-hero > * {
  position: relative;
  z-index: 1;
}

.page-disclaimer .usage-hero .eyebrow {
  margin: 0 0 14px;
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-disclaimer .usage-hero__lead h1 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(34px, 7.4vw, 66px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: 0.04em;
  color: var(--ink);
  max-width: 16em;
}

.page-disclaimer .usage-hero__lead h1 strong {
  font-weight: 700;
  color: var(--ink-2);
}

.page-disclaimer .usage-hero__intro {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--usage-body);
}

.page-disclaimer .usage-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-disclaimer .usage-hero__actions .btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  font-size: 15px;
  text-decoration: none;
}

/* 路径摘要 */

.page-disclaimer .usage-path {
  background: var(--ink);
  border-radius: var(--radius);
  padding: 22px 20px 10px;
  color: var(--mist);
  box-shadow: 0 18px 42px rgba(11, 59, 58, 0.22);
}

.page-disclaimer .usage-path__label {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
}

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

.page-disclaimer .usage-path__step {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  position: relative;
}

.page-disclaimer .usage-path__step + .usage-path__step {
  border-top: 1px solid rgba(245, 241, 230, 0.14);
}

.page-disclaimer .usage-path__no {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--gold-soft);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-disclaimer .usage-path__title {
  margin: 4px 0 6px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-disclaimer .usage-path__text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--on-ink);
}

.page-disclaimer .usage-hero__figure {
  margin: 34px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-disclaimer .usage-hero__figure .media__caption {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--on-ink-dim);
  background: var(--ink);
}

/* ---------- 目录 ---------- */

.page-disclaimer .usage-toc {
  margin-top: 46px;
  padding: 22px 0 4px;
  border-top: 1px solid var(--usage-line);
}

.page-disclaimer .usage-toc__title {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--ink-2);
}

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

.page-disclaimer .usage-toc__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--usage-line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 240ms var(--ease), background 240ms var(--ease), color 240ms var(--ease);
}

.page-disclaimer .usage-toc__list a .u-mono {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-disclaimer .usage-toc__list a:hover,
.page-disclaimer .usage-toc__list a:focus-visible {
  border-color: var(--gold);
  background: var(--gold-soft);
  color: var(--ink-deep);
}

.page-disclaimer .usage-toc__list a:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 2px;
}

/* ---------- 规则 ---------- */

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

.page-disclaimer .usage-rules__title {
  margin: 0 0 6px;
  font-size: clamp(24px, 4.2vw, 36px);
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.page-disclaimer .rule {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 28px 0 30px;
  border-top: 1px solid var(--usage-line);
  scroll-margin-top: 24px;
}

.page-disclaimer .rule__no {
  font-size: 28px;
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-disclaimer .rule__title {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-disclaimer .rule__text {
  margin: 0 0 16px;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--usage-body);
}

.page-disclaimer .rule__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 46em;
}

.page-disclaimer .rule__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--usage-body);
}

.page-disclaimer .rule__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 8px;
  height: 2px;
  background: var(--gold);
}

.page-disclaimer .rule__flag {
  margin: 18px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--clay);
  background: rgba(200, 101, 61, 0.09);
  border-radius: 0 10px 10px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 44em;
}

/* ---------- 折叠细节 ---------- */

.page-disclaimer .usage-fold {
  margin-top: 20px;
  padding: 30px 0 0;
  border-top: 1px solid var(--usage-line);
}

.page-disclaimer .usage-fold__title {
  margin: 0 0 18px;
  font-size: clamp(22px, 3.8vw, 30px);
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.page-disclaimer .fold {
  border: 1px solid var(--usage-line);
  border-radius: 12px;
  background: var(--paper);
  overflow: hidden;
}

.page-disclaimer .fold + .fold {
  margin-top: 10px;
}

.page-disclaimer .fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
  padding: 14px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
}

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

.page-disclaimer .fold summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--gold);
}

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

.page-disclaimer .fold summary:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: -2px;
}

.page-disclaimer .fold p {
  margin: 0;
  padding: 0 20px 20px;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--usage-body);
}

/* ---------- 支持区 ---------- */

.page-disclaimer .usage-support {
  margin-top: 46px;
  padding: 34px 24px 30px;
  border-radius: var(--radius);
  background: linear-gradient(140deg, var(--ink-2) 0%, var(--ink) 62%);
  color: var(--mist);
  position: relative;
  overflow: hidden;
}

.page-disclaimer .usage-support::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(201, 162, 39, 0.35);
  border-radius: 50%;
  pointer-events: none;
}

.page-disclaimer .usage-support__title {
  margin: 0 0 12px;
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-disclaimer .usage-support__text {
  margin: 0 0 22px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--on-ink);
}

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

.page-disclaimer .usage-support__actions .btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  font-size: 15px;
  text-decoration: none;
}

.page-disclaimer .usage-support__meta {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-soft);
  word-break: break-all;
}

.page-disclaimer .usage-support__links {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--on-ink-dim);
}

.page-disclaimer .usage-support__links a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 199, 110, 0.45);
}

.page-disclaimer .usage-support__links a:hover,
.page-disclaimer .usage-support__links a:focus-visible {
  border-bottom-color: var(--gold-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-disclaimer .rule {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 28px;
    padding: 34px 0 36px;
  }

  .page-disclaimer .rule__no {
    font-size: clamp(30px, 3.6vw, 42px);
    padding-top: 2px;
  }

  .page-disclaimer .usage-hero__figure .media__caption {
    padding: 14px 24px;
  }

  .page-disclaimer .usage-support {
    padding: 44px 40px 38px;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .usage-hero {
    padding-top: 34px;
  }

  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
    gap: 52px;
    align-items: end;
  }

  .page-disclaimer .usage-path {
    padding: 26px 24px 12px;
  }

  .page-disclaimer .usage-hero__figure {
    margin-top: 42px;
  }

  .page-disclaimer .usage-toc {
    margin-top: 56px;
  }

  .page-disclaimer .usage-rules {
    margin-top: 48px;
  }

  .page-disclaimer .usage-support {
    margin-top: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-toc__list a {
    transition: none;
  }
}
<<<END>>>