.page-disclaimer {
  --ink-strong: #14202C;
  --ink-soft: #3D4A57;
  --rule-light: rgba(5, 15, 26, 0.14);
  --panel: #FFFFFF;

  background: var(--sand-100);
  color: var(--ink-strong);
  font-family: var(--font-body);
  padding-bottom: clamp(56px, 8vw, 112px);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumbs {
  padding-top: clamp(14px, 2vw, 22px);
}

.page-disclaimer .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 1.6;
}

.page-disclaimer .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-disclaimer .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--sand-300);
}

.page-disclaimer .breadcrumbs__link {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-disclaimer .breadcrumbs__link:hover,
.page-disclaimer .breadcrumbs__link:focus-visible {
  color: var(--orange-500);
}

.page-disclaimer .breadcrumbs__current {
  color: var(--orange-500);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-intro {
  padding-top: clamp(20px, 3.4vw, 40px);
  padding-bottom: clamp(34px, 5vw, 62px);
}

.page-disclaimer .usage-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

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

.page-disclaimer .usage-intro h1 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 12px 0 18px;
  color: var(--navy-950);
  max-width: 20ch;
}

.page-disclaimer .usage-intro__lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 0 0 26px;
}

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

.page-disclaimer .usage-intro__media {
  border: 1px solid var(--rule-light);
  border-radius: var(--radius-2);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  margin: 0;
}

.page-disclaimer .usage-intro__media .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-disclaimer .usage-intro__media .media-frame__caption {
  background: var(--navy-950);
  color: var(--sand-100);
  font-size: 13px;
  line-height: 1.7;
  padding: 12px 16px;
  border-top: 2px solid var(--orange-500);
}

/* ---------- 版本条 ---------- */
.page-disclaimer .version-bar {
  background: var(--navy-950);
  border-top: 2px solid var(--orange-500);
  border-bottom: 1px solid var(--navy-600);
  padding: clamp(22px, 3.4vw, 34px) 0;
  margin-bottom: clamp(40px, 6vw, 78px);
}

.page-disclaimer .version-bar__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-disclaimer .version-bar__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist-400);
  margin: 0 0 8px;
}

.page-disclaimer .version-bar__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0 0 8px;
}

.page-disclaimer .version-bar__tag {
  color: var(--orange-500);
}

.page-disclaimer .version-bar__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-400);
  margin: 0;
}

.page-disclaimer .version-bar__rev {
  border-left: 2px solid var(--navy-600);
  padding-left: 16px;
}

.page-disclaimer .version-bar__rev-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange-200);
  margin: 0 0 12px;
}

.page-disclaimer .version-bar__rev-title::after {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform var(--t-base) var(--ease);
}

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

.page-disclaimer .version-bar__log-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sand-100);
}

.page-disclaimer .version-bar__log-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--navy-950);
  background: var(--orange-200);
  border-radius: var(--radius-1);
  padding: 2px 7px;
  flex: none;
}

.page-disclaimer .version-bar__log-text {
  color: var(--mist-400);
  min-width: 0;
}

/* ---------- 条文区 ---------- */
.page-disclaimer .usage-head {
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

.page-disclaimer .usage-head h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--navy-950);
  margin: 10px 0 0;
  max-width: 26ch;
}

.page-disclaimer .clause-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-light);
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  border-bottom: 1px solid var(--rule-light);
  padding: clamp(26px, 4vw, 44px) 0;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-disclaimer .clause__num-wrap {
  position: relative;
  padding-left: 16px;
  border-left: 3px solid var(--sand-300);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.page-disclaimer .clause__num-wrap::before {
  content: "";
  position: absolute;
  left: -3px;
  top: 0;
  width: 3px;
  height: 34px;
  background: var(--orange-500);
}

.page-disclaimer .clause__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(32px, 6vw, 50px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--navy-950);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-disclaimer .clause__num:hover,
.page-disclaimer .clause__num:focus-visible {
  color: var(--orange-500);
}

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

.page-disclaimer .clause__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(19px, 2.5vw, 26px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--navy-950);
  margin: 0 0 14px;
}

.page-disclaimer .clause__body p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 66ch;
  margin: 0 0 14px;
}

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

.page-disclaimer .usage-link {
  color: var(--orange-500);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--orange-200);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-disclaimer .usage-link:hover,
.page-disclaimer .usage-link:focus-visible {
  color: var(--navy-950);
  border-bottom-color: var(--orange-500);
}

/* ---------- 引用示例 ---------- */
.page-disclaimer .quote-sample {
  margin: 18px 0 20px;
  background: var(--navy-950);
  border-left: 4px solid var(--orange-500);
  border-radius: var(--radius-2);
  padding: 18px 20px;
  overflow-x: auto;
}

.page-disclaimer .quote-sample pre {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--sand-100);
  white-space: pre;
}

.page-disclaimer .quote-sample__key {
  color: var(--orange-200);
  font-weight: 700;
}

/* ---------- 场景四格 ---------- */
.page-disclaimer .scenario-grid {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-disclaimer .scenario {
  background: var(--panel);
  border: 1px solid var(--sand-300);
  border-top: 3px solid var(--grass-600);
  border-radius: var(--radius-2);
  padding: 18px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}

.page-disclaimer .scenario:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.page-disclaimer .scenario__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--grass-600);
}

.page-disclaimer .scenario__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- 结尾导航条 ---------- */
.page-disclaimer .usage-next {
  margin-top: clamp(36px, 5.4vw, 68px);
}

.page-disclaimer .usage-next__inner {
  background: var(--navy-800);
  border-radius: var(--radius-2);
  padding: clamp(24px, 4vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}

.page-disclaimer .usage-next__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.3;
  color: var(--white);
  margin: 0 0 10px;
}

.page-disclaimer .usage-next__text p {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist-400);
  margin: 0;
  max-width: 62ch;
}

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

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-disclaimer .clause {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 52px);
    align-items: start;
  }

  .page-disclaimer .clause__num-wrap {
    align-items: flex-start;
    min-height: 60px;
  }

  .page-disclaimer .clause__num-wrap::before {
    height: 42px;
  }

  .page-disclaimer .scenario-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-intro__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-disclaimer .version-bar__inner {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    align-items: center;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-disclaimer .version-bar__rev {
    padding-left: 24px;
  }

  .page-disclaimer .version-bar__log {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height var(--t-slow) var(--ease), opacity var(--t-base) var(--ease);
  }

  .page-disclaimer .version-bar__rev:hover .version-bar__log,
  .page-disclaimer .version-bar__rev:focus-within .version-bar__log {
    max-height: 240px;
    opacity: 1;
  }

  .page-disclaimer .version-bar__rev:hover .version-bar__rev-title::after,
  .page-disclaimer .version-bar__rev:focus-within .version-bar__rev-title::after {
    transform: rotate(225deg) translate(-1px, -1px);
  }

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

@media (min-width: 1080px) {
  .page-disclaimer .scenario-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .scenario,
  .page-disclaimer .clause__num,
  .page-disclaimer .usage-link,
  .page-disclaimer .version-bar__log,
  .page-disclaimer .version-bar__rev-title::after {
    transition: none;
  }

  .page-disclaimer .scenario:hover {
    transform: none;
  }
}