.page-disclaimer {
  --clause-gutter: 34px;
  background: var(--gray-050);
  color: var(--text);
  overflow-x: hidden;
}

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

/* ===== 文档抬头 ===== */
.page-disclaimer .legal-head {
  background: var(--ink-900);
  color: var(--on-ink);
  padding-bottom: clamp(28px, 5vw, 56px);
  border-bottom: 1px solid rgba(53, 230, 196, 0.32);
}

.page-disclaimer .legal-head__crumb {
  padding-top: clamp(16px, 2.6vw, 28px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-ink-muted);
}

.page-disclaimer .legal-head__crumb .breadcrumb__link {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-disclaimer .legal-head__crumb .breadcrumb__link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-disclaimer .legal-head__crumb .breadcrumb__sep {
  color: var(--gray-300);
  margin: 0 2px;
}

.page-disclaimer .legal-head__crumb-current {
  color: var(--gray-300);
}

.page-disclaimer .legal-head__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 48px);
  padding-top: clamp(22px, 4vw, 44px);
}

.page-disclaimer .legal-head__version {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-300);
  margin: 0;
}

.page-disclaimer .legal-head__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(46px, 12vw, 104px);
  line-height: 0.9;
  letter-spacing: -0.035em;
  color: var(--gray-050);
  margin: 14px 0 0;
}

.page-disclaimer .legal-head__lead {
  max-width: 36em;
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--on-ink-muted);
}

.page-disclaimer .legal-head__figure {
  margin: 0;
  border: 1px solid rgba(195, 187, 176, 0.26);
  background: var(--ink-700);
}

.page-disclaimer .legal-head__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ===== 正文区 ===== */
.page-disclaimer .legal-body {
  padding: clamp(30px, 5vw, 64px) 0 clamp(34px, 5vw, 60px);
}

.page-disclaimer .legal-body__sr-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-disclaimer .legal-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
}

/* ---- 目录 ---- */
.page-disclaimer .legal-toc {
  order: -1;
}

.page-disclaimer .legal-toc__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-300);
}

.page-disclaimer .legal-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--gray-300);
  border: 1px solid var(--gray-300);
}

.page-disclaimer .legal-toc__item {
  background: var(--gray-050);
  min-width: 0;
}

.page-disclaimer .legal-toc__link {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 10px;
  font-size: 13px;
  line-height: 1.35;
  color: var(--text);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-disclaimer .legal-toc__link:hover {
  background: var(--cyan-soft);
  color: var(--ink-900);
}

.page-disclaimer .legal-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-700);
}

/* ---- 条款 ---- */
.page-disclaimer .clause {
  position: relative;
  display: grid;
  grid-template-columns: var(--clause-gutter) minmax(0, 1fr);
  gap: 0 14px;
  padding: 22px 0 24px 12px;
  border-top: 1px solid var(--gray-300);
}

.page-disclaimer .clause:last-child {
  border-bottom: 1px solid var(--gray-300);
}

.page-disclaimer .clause::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: var(--cyan);
  opacity: 0;
  transform: scaleY(0.45);
  transform-origin: top center;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-disclaimer .clause:hover::before,
.page-disclaimer .clause:focus-within::before,
.page-disclaimer .clause:focus::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-disclaimer .clause:focus {
  outline: none;
}

.page-disclaimer .clause__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1;
  padding-top: 7px;
  color: var(--ink-700);
}

.page-disclaimer .clause__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.32;
  letter-spacing: -0.012em;
  color: var(--text);
  margin: 0 0 10px;
}

.page-disclaimer .clause__text {
  max-width: 40em;
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
}

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

/* ---- 三种使用场景 ---- */
.page-disclaimer .usage-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--gray-300);
  border: 1px solid var(--gray-300);
}

.page-disclaimer .usage-card {
  background: var(--gray-050);
  padding: 16px 16px 18px;
  min-width: 0;
  transition: background-color var(--dur) var(--ease);
}

.page-disclaimer .usage-card:nth-child(2) {
  background: var(--gray-100);
}

.page-disclaimer .usage-card:hover {
  background: var(--cyan-soft);
}

.page-disclaimer .usage-card .tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-disclaimer .usage-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--text);
}

/* ===== 页尾引导 ===== */
.page-disclaimer .legal-tail {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-300);
  padding: clamp(28px, 4vw, 48px) 0 clamp(32px, 5vw, 56px);
}

.page-disclaimer .legal-tail__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-disclaimer .legal-tail__copy .kicker {
  display: block;
  margin-bottom: 8px;
}

.page-disclaimer .legal-tail__text {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.68;
  color: var(--muted);
}

.page-disclaimer .legal-tail__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
}

.page-disclaimer .legal-tail__textlink {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-300);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .legal-tail__textlink:hover {
  color: var(--ink-900);
  border-bottom-color: var(--cyan);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-disclaimer {
    --clause-gutter: 48px;
  }

  .page-disclaimer .legal-toc__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .legal-tail__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-disclaimer .legal-tail__links {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .legal-head__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }

  .page-disclaimer .usage-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-disclaimer .legal-body__grid {
    grid-template-columns: minmax(0, 1fr) 236px;
    align-items: start;
  }

  .page-disclaimer .legal-toc {
    order: 0;
    position: sticky;
    top: 96px;
  }

  .page-disclaimer .legal-toc__list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-disclaimer .clause {
    padding-right: 12px;
  }

  .page-disclaimer .clause__body {
    max-width: 44em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .clause::before,
  .page-disclaimer .legal-toc__link,
  .page-disclaimer .usage-card,
  .page-disclaimer .legal-head__crumb .breadcrumb__link,
  .page-disclaimer .legal-tail__textlink {
    transition: none;
  }

  .page-disclaimer .clause::before {
    transform: none;
  }
}