.page-disclaimer {
  position: relative;
  isolation: isolate;
  overflow-x: hidden;
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    linear-gradient(to right, rgba(42, 54, 84, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 54, 84, .55) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .22) 42%, transparent 72%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .22) 42%, transparent 72%);
}

.page-disclaimer > * {
  position: relative;
  z-index: 1;
}

/* 面包屑留白 */
.page-disclaimer .disc-crumb-wrap {
  padding-top: 26px;
}

/* ============ 首屏 ============ */
.page-disclaimer .disc-hero {
  padding-top: 10px;
}

.page-disclaimer .disc-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: end;
}

.page-disclaimer .disc-hero-copy h1 {
  margin: 10px 0 0;
  font-family: var(--f-head);
  font-size: clamp(32px, 8vw, 52px);
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--c-white);
}

.page-disclaimer .disc-hero-copy .lead {
  margin-top: 18px;
  max-width: 62ch;
}

.page-disclaimer .disc-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
}

.page-disclaimer .disc-hero-meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-disclaimer .disc-hero-meta .mono {
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--c-cyan);
}

.page-disclaimer .disc-hero-meta em {
  font-style: normal;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-slate);
}

.page-disclaimer .disc-hero-figure {
  margin: 0;
}

.page-disclaimer .disc-hero-figure .figure-frame {
  box-shadow: var(--shadow-panel);
}

/* ============ 主体布局 ============ */
.page-disclaimer .disc-body {
  padding-top: 6px;
}

.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

/* 索引栏 */
.page-disclaimer .disc-index {
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px 14px;
  background: linear-gradient(180deg, rgba(17, 27, 51, .92), rgba(7, 13, 31, .55));
}

.page-disclaimer .disc-index-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--c-slate);
}

.page-disclaimer .disc-index-list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-disclaimer .disc-index-list li {
  flex: none;
}

.page-disclaimer .disc-index-link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  border-radius: 2px;
  color: var(--c-body);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: color .25s var(--ease), background-color .25s var(--ease), border-color .25s var(--ease);
}

.page-disclaimer .disc-index-link .mono {
  font-size: 11px;
  color: var(--c-slate);
  transition: color .25s var(--ease);
}

.page-disclaimer .disc-index-link:hover,
.page-disclaimer .disc-index-link:focus-visible {
  color: var(--c-white);
  background: rgba(0, 229, 255, .07);
  border-left-color: var(--c-cyan);
  outline: none;
}

.page-disclaimer .disc-index-link:hover .mono,
.page-disclaimer .disc-index-link:focus-visible .mono {
  color: var(--c-cyan);
}

.page-disclaimer .disc-index-foot {
  display: none;
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--c-line);
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--c-slate);
}

/* ============ 条款区 ============ */
.page-disclaimer .disc-content {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-disclaimer .disc-item {
  scroll-margin-top: 96px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-panel);
  overflow: hidden;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-disclaimer .disc-item[open] {
  box-shadow: var(--shadow-panel);
}

.page-disclaimer .disc-item:hover {
  border-color: rgba(0, 229, 255, .38);
}

.page-disclaimer .disc-item-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .disc-item-head::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-item-head:focus-visible {
  outline: 1px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-disclaimer .disc-num {
  display: inline-block;
  padding: 3px 6px;
  border: 1px solid rgba(0, 229, 255, .34);
  border-radius: 2px;
  font-size: 12px;
  line-height: 1;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

.page-disclaimer .disc-item-title {
  margin: 0;
  font-family: var(--f-head);
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: .02em;
  color: var(--c-white);
}

.page-disclaimer .disc-item-mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-disclaimer .disc-item-mark::before,
.page-disclaimer .disc-item-mark::after {
  content: "";
  position: absolute;
  background: var(--c-slate);
  transition: transform .3s var(--ease), background-color .3s var(--ease);
}

.page-disclaimer .disc-item-mark::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 1.5px;
}

.page-disclaimer .disc-item-mark::after {
  top: 0;
  left: 6px;
  width: 1.5px;
  height: 14px;
}

.page-disclaimer .disc-item[open] .disc-item-mark::before {
  background: var(--c-cyan);
}

.page-disclaimer .disc-item[open] .disc-item-mark::after {
  transform: scaleY(0);
}

.page-disclaimer .disc-item-body {
  padding: 18px;
  border-top: 1px solid var(--c-line);
}

.page-disclaimer .disc-item-body p {
  margin: 0 0 12px;
  color: var(--c-body);
  font-size: 15px;
  line-height: 1.75;
}

.page-disclaimer .disc-item-body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .disc-item-body strong {
  color: var(--c-white);
  font-weight: 600;
}

.page-disclaimer .disc-item-body a,
.page-disclaimer .disc-callout a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .38);
  transition: border-color .25s var(--ease), color .25s var(--ease);
}

.page-disclaimer .disc-item-body a:hover,
.page-disclaimer .disc-callout a:hover {
  color: var(--c-white);
  border-bottom-color: var(--c-cyan);
}

/* 要点列表 */
.page-disclaimer .disc-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .disc-list li {
  position: relative;
  padding-left: 18px;
  color: var(--c-body);
  font-size: 14.5px;
  line-height: 1.72;
}

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 8px;
  height: 1px;
  background: var(--c-violet);
}

/* 数据条 */
.page-disclaimer .disc-kpis {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 16px 0;
}

/* 版本标签 */
.page-disclaimer .disc-version {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  cursor: help;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-disclaimer .disc-version em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-slate);
}

.page-disclaimer .disc-version:hover {
  border-color: var(--c-violet);
  box-shadow: 0 0 0 3px rgba(124, 77, 255, .16);
}

/* 提示块 */
.page-disclaimer .disc-callout {
  margin-top: 16px;
}

.page-disclaimer .disc-callout p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
}

/* ============ 断点 ============ */
@media (min-width: 641px) {
  .page-disclaimer .disc-kpis {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-disclaimer .disc-crumb-wrap {
    padding-top: 34px;
  }

  .page-disclaimer .disc-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 54px;
  }

  .page-disclaimer .disc-layout {
    grid-template-columns: 206px minmax(0, 1fr);
    gap: 52px;
  }

  .page-disclaimer .disc-index {
    position: sticky;
    top: 96px;
    align-self: start;
    padding: 20px 16px;
  }

  .page-disclaimer .disc-index-list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-disclaimer .disc-index-foot {
    display: block;
  }

  .page-disclaimer .disc-item-head {
    padding: 20px 24px;
  }

  .page-disclaimer .disc-item-title {
    font-size: 20px;
  }

  .page-disclaimer .disc-item-body {
    padding: 20px 24px 24px;
  }

  /* 宽窄章节交替 */
  .page-disclaimer .disc-item:nth-child(even) {
    width: calc(100% - 58px);
    margin-left: 58px;
  }
}

@media (min-width: 1200px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-item,
  .page-disclaimer .disc-item-mark::before,
  .page-disclaimer .disc-item-mark::after,
  .page-disclaimer .disc-index-link,
  .page-disclaimer .disc-version {
    transition: none;
  }
}