.page-disclaimer {
  --ud-radius: 28px;
  --ud-gap: clamp(1.5rem, 4vw, 3rem);
  --ud-alert: rgba(196, 69, 31, .05);
  overflow-wrap: break-word;
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumb {
  padding-block: 1.35rem .25rem;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  padding-block: 1.25rem 0;
}

.page-disclaimer .usage-hero__inner {
  display: grid;
  gap: 2rem;
}

.page-disclaimer .usage-title {
  margin: .55rem 0 1rem;
  line-height: 1.02;
}

.page-disclaimer .usage-hero__lead .lede {
  max-width: 46ch;
}

.page-disclaimer .version-row {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}

.page-disclaimer .usage-hero__panel {
  padding: 1.5rem 1.4rem 1.1rem;
  align-self: start;
}

.page-disclaimer .panel-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--blue);
}

.page-disclaimer .usage-meta {
  margin: 0;
  display: grid;
}

.page-disclaimer .usage-meta__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-block: .72rem;
  border-bottom: 1px solid var(--rule);
}

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

.page-disclaimer .usage-meta__row dt {
  font-size: .84rem;
  color: var(--graphite);
}

.page-disclaimer .usage-meta__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .02em;
  color: var(--ink);
  text-align: right;
}

/* ---------- 通栏视觉 ---------- */
.page-disclaimer .usage-banner {
  margin: clamp(2rem, 5vw, 3.5rem) 0 0;
}

.page-disclaimer .usage-banner__frame {
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--cream);
}

.page-disclaimer .usage-banner__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-disclaimer .usage-banner__caption {
  margin-top: .9rem;
  padding-left: .85rem;
  border-left: 2px solid var(--brass);
  max-width: 62ch;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 主体双栏 ---------- */
.page-disclaimer .usage-body {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-disclaimer .rule-scale {
  height: 12px;
  margin-bottom: 1.9rem;
  border-top: 1px solid var(--rule);
  background-image: repeating-linear-gradient(
    90deg,
    var(--steel) 0 1px,
    transparent 1px 28px
  );
  background-size: 28px 6px;
  background-repeat: repeat-x;
  background-position: 0 3px;
}

/* ---------- 条款组 ---------- */
.page-disclaimer .clause-group {
  margin-top: 2.6rem;
}

.page-disclaimer .clause-group:first-of-type {
  margin-top: 0;
}

.page-disclaimer .clause-group__head {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--ink);
}

.page-disclaimer .clause-group__no {
  flex: none;
  align-self: center;
  font-family: var(--font-mono);
  font-size: .7rem;
  line-height: 1;
  letter-spacing: .1em;
  color: var(--paper);
  background: var(--ink);
  border-radius: 4px;
  padding: .22rem .42rem;
}

.page-disclaimer .clause-group__range {
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--blue);
}

/* ---------- 条款 ---------- */
.page-disclaimer .clause {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: .3rem .9rem;
  padding-block: 1.35rem;
  border-bottom: 1px solid var(--rule);
}

.page-disclaimer .clause__no {
  justify-self: start;
  padding-top: .15rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--blue);
  border-bottom: 1px dashed transparent;
  cursor: copy;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-disclaimer .clause__no:hover {
  border-bottom-color: var(--steel);
}

.page-disclaimer .clause__no.is-copied {
  color: var(--green);
  border-bottom-color: var(--green);
}

.page-disclaimer .clause__body {
  min-width: 0;
}

.page-disclaimer .clause__title {
  margin: 0 0 .42rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-disclaimer .clause__text {
  margin: 0;
  max-width: 62ch;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--graphite);
}

.page-disclaimer .clause__code {
  font-family: var(--font-mono);
  letter-spacing: .02em;
  color: var(--blue);
  border-bottom: 1px dashed var(--steel);
  cursor: copy;
}

.page-disclaimer .clause__code.is-copied {
  color: var(--green);
  border-bottom-color: var(--green);
}

.page-disclaimer .clause--flag {
  padding-left: .95rem;
  border-left: 3px solid var(--red);
  border-radius: 0 12px 12px 0;
  background: var(--ud-alert);
}

/* ---------- 右侧说明 ---------- */
.page-disclaimer .side-column {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}

.page-disclaimer .side-card {
  padding: 1.5rem 1.35rem;
  background: var(--cream);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
}

.page-disclaimer .side-card--plain {
  background: transparent;
  border: 1px dashed var(--steel);
}

.page-disclaimer .side-card__title {
  margin: .35rem 0 .7rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-disclaimer .side-card__text {
  margin: 0 0 1.1rem;
  font-size: .88rem;
  line-height: 1.76;
  color: var(--graphite);
}

.page-disclaimer .side-nav {
  list-style: none;
  margin: 0 0 1.15rem;
  padding: 0;
}

.page-disclaimer .side-nav__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-block: .62rem;
  border-bottom: 1px solid var(--rule);
  font-size: .88rem;
  color: var(--blue);
  text-decoration: none;
  transition: color .16s var(--ease), padding-left .16s var(--ease);
}

.page-disclaimer .side-nav__link:hover {
  color: var(--orange);
  padding-left: .3rem;
}

.page-disclaimer .side-nav__link .mono {
  flex: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--graphite);
}

.page-disclaimer .side-flag {
  margin: 0 0 1.1rem;
  padding-left: .85rem;
  border-left: 3px solid var(--red);
  font-size: .87rem;
  line-height: 1.72;
  color: var(--graphite);
}

/* ---------- 断点 ---------- */
@media (min-width: 768px) {
  .page-disclaimer .clause {
    grid-template-columns: 3.3rem minmax(0, 1fr);
    gap: .3rem 1.5rem;
  }

  .page-disclaimer .clause--flag {
    padding-left: 1.35rem;
  }

  .page-disclaimer .usage-title {
    margin-top: .7rem;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .usage-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--ud-gap);
    align-items: start;
  }

  .page-disclaimer .usage-hero__panel {
    margin-top: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .usage-body {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: clamp(2.5rem, 4vw, 4rem);
    align-items: start;
  }

  .page-disclaimer .rule-scale {
    margin-bottom: 2.2rem;
  }
}

@media (min-width: 1280px) {
  .page-disclaimer .usage-body {
    grid-template-columns: minmax(0, 1fr) 368px;
  }

  .page-disclaimer .side-card {
    padding: 1.65rem 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .clause__no,
  .page-disclaimer .clause__code,
  .page-disclaimer .side-nav__link {
    transition: none;
  }

  .page-disclaimer .side-nav__link:hover {
    padding-left: 0;
  }
}