.page-disclaimer {
  --clause-side: 170px;
  --clause-rule: 3px;
  color: var(--cream);
  overflow-wrap: break-word;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .usage-hero {
  display: grid;
  gap: 2rem;
  padding-top: 1.25rem;
}

.page-disclaimer .usage-hero__main {
  min-width: 0;
}

.page-disclaimer .usage-title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-disclaimer .usage-hero__main .lede {
  margin-top: 1.25rem;
  max-width: 34em;
  color: var(--cream);
}

.page-disclaimer .usage-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: var(--clause-rule) solid var(--black);
}

.page-disclaimer .usage-meta__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-meta__key {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-disclaimer .usage-meta__val {
  font-family: var(--font-num);
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-disclaimer .usage-banner {
  margin: 2rem 0 0;
  padding: 0;
  border: var(--clause-rule) solid var(--black);
  box-shadow: var(--hard-shadow);
  overflow: hidden;
  background: var(--panel);
}

.page-disclaimer .usage-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-disclaimer .usage-index {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: var(--clause-rule) solid var(--black);
}

/* ---------- 条文版式 ---------- */

.page-disclaimer .usage-clause {
  scroll-margin-top: 5.5rem;
}

.page-disclaimer .clause {
  display: grid;
  gap: 1.25rem;
  padding: 2rem 0;
  border-top: var(--clause-rule) solid var(--black);
}

.page-disclaimer .clause__side {
  display: flex;
  align-items: baseline;
  gap: 0.875rem;
  min-width: 0;
}

.page-disclaimer .clause__num {
  font-family: var(--font-num);
  font-size: 1.6rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--clay);
}

.page-disclaimer .clause__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.page-disclaimer .clause__body {
  min-width: 0;
  color: var(--cream);
}

.page-disclaimer .clause__body p {
  margin: 0 0 1rem;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.8;
}

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

.page-disclaimer .clause__list {
  list-style: none;
  margin: 1.25rem 0;
  padding: 0;
  display: grid;
  gap: 0.875rem;
  max-width: 40em;
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.75;
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 12px;
  height: 3px;
  background: var(--coral);
}

.page-disclaimer .clause__list strong {
  color: var(--cyan);
  font-weight: 700;
}

/* ---------- 署名复制 ---------- */

.page-disclaimer .cite-box {
  margin-top: 1.5rem;
  padding: 1.25rem;
  display: grid;
  gap: 0.875rem;
  max-width: 40em;
  background: var(--panel);
  border: var(--clause-rule) solid var(--black);
  box-shadow: var(--hard-shadow);
}

.page-disclaimer .cite-box__label {
  margin: 0;
  color: var(--rock);
  letter-spacing: 0.1em;
}

.page-disclaimer .cite-box__sample {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.95rem;
  line-height: 1.7;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  word-break: break-word;
}

.page-disclaimer .copy-btn {
  justify-self: start;
  min-height: 44px;
  padding: 0.6rem 1.1rem;
  font-family: var(--font-num);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--black);
  background: var(--cyan);
  border: var(--clause-rule) solid var(--black);
  box-shadow: 4px 4px 0 var(--black);
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

.page-disclaimer .copy-btn:hover,
.page-disclaimer .copy-btn:focus-visible {
  background: var(--coral);
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--black);
}

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

/* ---------- 联系方式行 ---------- */

.page-disclaimer .contact-line {
  display: grid;
  gap: 0.2rem;
  margin-top: 1rem;
  padding-left: 1rem;
  border-left: var(--clause-rule) solid var(--coral);
}

.page-disclaimer .contact-line__key {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--rock);
}

.page-disclaimer .contact-line__val {
  font-family: var(--font-num);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  color: var(--cream);
  word-break: break-all;
}

/* ---------- 收尾提示条 ---------- */

.page-disclaimer .usage-summary {
  margin: 1.5rem 0 0;
  padding: clamp(1.25rem, 4vw, 2rem);
  background: var(--cream);
  color: var(--ink-deep);
  border: var(--clause-rule) solid var(--black);
  box-shadow: var(--hard-shadow);
}

.page-disclaimer .usage-summary__text {
  margin: 0;
  max-width: 46em;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  line-height: 1.85;
}

.page-disclaimer .usage-summary__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0 0;
}

/* ---------- 断点 ---------- */

@media (min-width: 768px) {
  .page-disclaimer .clause__body p {
    font-size: 1.0625rem;
  }
}

@media (min-width: 820px) {
  .page-disclaimer .clause {
    grid-template-columns: var(--clause-side) minmax(0, 1fr);
    gap: 3rem;
    padding: 3rem 0;
  }

  .page-disclaimer .clause__side {
    display: block;
    align-self: start;
  }

  .page-disclaimer .clause__num {
    display: block;
    font-size: 2.5rem;
    margin-bottom: 0.6rem;
  }

  .page-disclaimer .clause__title {
    font-size: 1.45rem;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 3rem;
    align-items: end;
    padding-top: 2rem;
  }

  .page-disclaimer .usage-meta {
    border-top-color: var(--black);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .copy-btn:hover,
  .page-disclaimer .copy-btn:focus-visible {
    transform: none;
  }
}