.page-disclaimer {
  --clause-num-w: 76px;
  --clause-pad: clamp(26px, 4vw, 46px);
  --bar-h: 52px;
  --top-stick: calc(var(--header-h-sm) + var(--bar-h) + 14px);
  background: var(--ink-900);
  color: var(--cool);
  padding-bottom: clamp(48px, 8vw, 104px);
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
  font-size: 12px;
}
.page-disclaimer .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.page-disclaimer .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.page-disclaimer .breadcrumbs__item a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-disclaimer .breadcrumbs__item a:hover,
.page-disclaimer .breadcrumbs__item a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}
.page-disclaimer .breadcrumbs__item[aria-current="page"] {
  color: var(--cool);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .doc-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 38px);
  padding: clamp(24px, 4vw, 42px) 0 clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}
.page-disclaimer .doc-hero__lead {
  max-width: 62ch;
}
.page-disclaimer .doc-hero .eyebrow {
  margin: 0 0 14px;
}
.page-disclaimer .doc-hero .display {
  margin: 0 0 18px;
  font-size: clamp(34px, 7vw, 64px);
}
.page-disclaimer .doc-hero .lede {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--cool);
}
.page-disclaimer .doc-hero__note {
  margin: 14px 0 0;
  font-size: 13px;
}

.page-disclaimer .doc-hero__meta {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-disclaimer .doc-hero__meta-row {
  background: var(--ink-800);
  padding: 14px 16px;
  display: grid;
  gap: 6px;
}
.page-disclaimer .doc-hero__meta-row dt {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-disclaimer .doc-hero__meta-row dd {
  margin: 0;
  font-size: 16px;
  color: var(--white);
}

/* ---------- 通栏图 ---------- */
.page-disclaimer .doc-banner {
  margin: 0;
  border-bottom: 1px solid var(--line);
  background: var(--ink-850);
}
.page-disclaimer .doc-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 章节条 ---------- */
.page-disclaimer .clause-bar {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--line);
  background: var(--ink-900);
}
.page-disclaimer .clause-bar::-webkit-scrollbar {
  display: none;
}
.page-disclaimer .clause-bar__link {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 15px 18px;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  border-right: 1px solid var(--line);
  border-top: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}
.page-disclaimer .clause-bar__link:hover,
.page-disclaimer .clause-bar__link:focus-visible {
  color: var(--neon);
  border-top-color: var(--neon);
  background: var(--ink-800);
}
.page-disclaimer .clause-bar__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--neon-deep);
}

/* ---------- 正文 ---------- */
.page-disclaimer .doc-body {
  max-width: 1080px;
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: var(--clause-pad) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--top-stick) + 8px);
}
.page-disclaimer .clause__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-disclaimer .clause__body {
  max-width: 72ch;
}
.page-disclaimer .clause__title {
  margin: 0 0 14px;
  font-size: clamp(21px, 3vw, 30px);
  color: var(--white);
}
.page-disclaimer .clause__lede {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cool);
}

.page-disclaimer .clause__list {
  margin: 0;
  border-top: 1px solid var(--line);
}
.page-disclaimer .clause__item {
  display: grid;
  gap: 6px;
  padding: 16px 0 16px 16px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.page-disclaimer .clause__item--key::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 10px;
  height: 2px;
  background: var(--signal);
}
.page-disclaimer .clause__key {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.01em;
}
.page-disclaimer .clause__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--cool);
}
.page-disclaimer .clause__desc a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--neon-deep);
}
.page-disclaimer .clause__desc a:hover,
.page-disclaimer .clause__desc a:focus-visible {
  border-bottom-color: var(--neon);
}
.page-disclaimer .clause__foot {
  margin: 18px 0 0;
  font-size: 13px;
}

.page-disclaimer .clause:target {
  background: linear-gradient(90deg, rgba(59, 240, 200, 0.07), transparent 42%);
}
.page-disclaimer .clause:target .clause__num {
  color: var(--neon);
}

/* ---------- 术语提示 ---------- */
.page-disclaimer .term {
  position: relative;
  display: inline;
  padding: 0;
  margin: 0;
  background: none;
  border: 0;
  border-bottom: 1px dashed var(--neon-deep);
  color: inherit;
  font: inherit;
  line-height: inherit;
  cursor: help;
  text-align: left;
}
.page-disclaimer .term:hover,
.page-disclaimer .term:focus-visible {
  border-bottom-color: var(--neon);
  outline: none;
}
.page-disclaimer .term__tip {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  z-index: 20;
  width: max-content;
  max-width: 240px;
  padding: 9px 11px;
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-left: 2px solid var(--neon);
  color: var(--cool);
  font-size: 12px;
  line-height: 1.6;
  font-weight: 400;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
}
.page-disclaimer .term:hover .term__tip,
.page-disclaimer .term:focus .term__tip,
.page-disclaimer .term:focus-visible .term__tip {
  opacity: 1;
  visibility: visible;
}

/* ---------- 版本记录 ---------- */
.page-disclaimer .version-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.page-disclaimer .version-table thead th {
  padding: 10px 12px 10px 0;
  text-align: left;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.page-disclaimer .version-table tbody th {
  width: 84px;
  padding: 16px 12px 16px 0;
  vertical-align: top;
  text-align: left;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--neon);
  border-bottom: 1px solid var(--line);
}
.page-disclaimer .version-table td {
  padding: 14px 0;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .version-note summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  color: var(--white);
  font-size: 15px;
  line-height: 1.6;
  transition: color var(--dur) var(--ease);
}
.page-disclaimer .version-note summary::-webkit-details-marker {
  display: none;
}
.page-disclaimer .version-note summary::before {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--neon);
}
.page-disclaimer .version-note[open] summary::before {
  content: "－";
}
.page-disclaimer .version-note summary:hover,
.page-disclaimer .version-note summary:focus-visible {
  color: var(--neon);
  outline: none;
}
.page-disclaimer .version-note__list {
  margin: 12px 0 0;
  padding-left: 22px;
  color: var(--cool);
  font-size: 14px;
  line-height: 1.8;
}
.page-disclaimer .version-note__list li + li {
  margin-top: 4px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 768px) {
  .page-disclaimer .clause-bar {
    position: sticky;
    top: var(--header-h-sm);
    z-index: 6;
  }
  .page-disclaimer .doc-hero__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-disclaimer .doc-hero {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
    align-items: end;
  }
  .page-disclaimer .clause {
    grid-template-columns: var(--clause-num-w) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
  }
  .page-disclaimer .clause__num {
    position: sticky;
    top: var(--top-stick);
    align-self: start;
    padding-top: 8px;
    font-size: 14px;
  }
}

@media (min-width: 1280px) {
  .page-disclaimer .doc-body {
    padding-left: clamp(0px, 4vw, 56px);
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 520px) {
  .page-disclaimer .doc-hero__meta {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-disclaimer .clause__item {
    padding-left: 14px;
  }
  .page-disclaimer .clause__item--key::before {
    top: 22px;
    width: 8px;
  }
  .page-disclaimer .term__tip {
    left: auto;
    right: 0;
    max-width: 200px;
  }
  .page-disclaimer .version-table tbody th {
    width: 68px;
    font-size: 12px;
  }
  .page-disclaimer .version-note summary {
    font-size: 14px;
  }
}