.page-disclaimer {
  --clause-space: clamp(30px, 5vw, 56px);
  --clause-text: rgba(242, 246, 248, .8);
  color: var(--paper);
}

.page-disclaimer .usage-hero {
  padding-top: clamp(16px, 3vw, 32px);
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 3vw, 36px);
  align-items: end;
}

.page-disclaimer .usage-hero__lead h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(34px, 7vw, 60px);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-disclaimer .usage-hero__lead .lede {
  margin: 16px 0 0;
  max-width: 60ch;
  color: var(--clause-text);
}

.page-disclaimer .usage-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 24px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-disclaimer .usage-hero__meta .tag {
  font-family: var(--font-mono);
  letter-spacing: .05em;
}

.page-disclaimer .usage-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-850);
}

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

.page-disclaimer .usage-hero__media .media__caption {
  margin: 0;
  padding: 12px 16px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

.page-disclaimer .usage-body {
  margin-top: clamp(40px, 6vw, 84px);
}

.page-disclaimer .usage-layout {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

/* 条款目录：移动端为卡片，桌面端为粘性轨道 */
.page-disclaimer .usage-toc {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-850);
  padding: 18px 16px 16px;
}

.page-disclaimer .usage-toc__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--copper-soft);
}

.page-disclaimer .usage-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-disclaimer .usage-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 8px 8px 6px;
  border-radius: var(--r-sm);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .usage-toc__link:hover,
.page-disclaimer .usage-toc__link:focus-visible {
  color: var(--paper);
  background: var(--ink-800);
}

.page-disclaimer .usage-toc__num {
  flex: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--copper);
}

.page-disclaimer .usage-toc__link:hover .usage-toc__num {
  color: var(--copper-soft);
}

.page-disclaimer .usage-toc__foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-disclaimer .usage-toc__foot-label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--copper-soft);
}

.page-disclaimer .usage-toc__mail {
  display: inline-block;
  font-size: 12.5px;
  color: var(--teal);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(47, 211, 181, .35);
}

.page-disclaimer .usage-toc__mail:hover,
.page-disclaimer .usage-toc__mail:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-disclaimer .usage-toc__foot-note {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--mist);
}

/* 条文正文 */
.page-disclaimer .clause {
  scroll-margin-top: 96px;
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .clause + .clause {
  margin-top: var(--clause-space);
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-disclaimer .clause__num {
  flex: none;
  margin-top: 2px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 12px;
  letter-spacing: .1em;
  line-height: 1.2;
  color: var(--copper);
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .clause:hover .clause__num,
.page-disclaimer .clause:focus-within .clause__num {
  color: var(--copper-soft);
  border-color: var(--copper);
  background: rgba(185, 133, 75, .12);
}

.page-disclaimer .clause__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(21px, 3vw, 27px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-disclaimer .clause__body {
  margin-top: 14px;
  max-width: 74ch;
  font-size: clamp(15px, 1.1vw, 16.5px);
  line-height: 1.78;
  color: var(--clause-text);
}

.page-disclaimer .clause__body p {
  margin: 0 0 14px;
}

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

.page-disclaimer .clause__body a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 211, 181, .4);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-disclaimer .clause__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: 22px;
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 12px;
  height: 1px;
  background: var(--copper);
}

.page-disclaimer .chapter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .chapter-chips li {
  padding: 5px 12px;
  border: 1px dashed var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--mist);
}

.page-disclaimer .note {
  margin-top: 18px;
}

/* 联系方式面板 */
.page-disclaimer .usage-contact {
  margin-top: 20px;
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--r-lg);
  color: var(--text-dark);
  display: grid;
  gap: 16px;
}

.page-disclaimer .usage-contact__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .usage-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-disclaimer .usage-contact__list li {
  display: grid;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px dotted rgba(18, 33, 46, .18);
}

.page-disclaimer .usage-contact__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .usage-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-disclaimer .usage-contact__value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-dark);
  word-break: break-word;
}

.page-disclaimer a.usage-contact__value {
  color: #0B6E60;
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 110, 96, .4);
}

.page-disclaimer a.usage-contact__value:hover,
.page-disclaimer a.usage-contact__value:focus-visible {
  color: var(--ink-900);
  border-bottom-color: var(--ink-900);
}

.page-disclaimer .usage-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 4px;
}

.page-disclaimer .usage-contact .btn--ghost {
  border-color: rgba(18, 33, 46, .3);
  color: var(--text-dark);
}

.page-disclaimer .usage-contact .btn--ghost:hover,
.page-disclaimer .usage-contact .btn--ghost:focus-visible {
  border-color: var(--ink-800);
  background: rgba(18, 33, 46, .06);
}

@media (min-width: 560px) {
  .page-disclaimer .usage-contact__list li {
    grid-template-columns: 72px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (min-width: 980px) {
  .page-disclaimer .usage-layout {
    grid-template-columns: minmax(200px, 238px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-disclaimer .usage-toc {
    position: sticky;
    top: 92px;
    padding: 16px 0 0;
    border: 0;
    border-top: 1px solid var(--copper);
    border-radius: 0;
    background: transparent;
  }

  .page-disclaimer .clause__body {
    margin-top: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-toc__link,
  .page-disclaimer .clause__num,
  .page-disclaimer .clause__body a {
    transition: none;
  }
}

@media print {
  .page-disclaimer .usage-toc,
  .page-disclaimer .usage-hero__media {
    display: none;
  }

  .page-disclaimer .usage-layout {
    display: block;
  }

  .page-disclaimer .clause {
    break-inside: avoid;
    border-color: #999;
  }
}