.page-disclaimer {
  --disc-hair: rgba(169, 189, 212, 0.14);
  --disc-hair-strong: rgba(169, 189, 212, 0.3);
  --disc-panel: rgba(11, 20, 40, 0.72);
  padding-bottom: clamp(56px, 10vw, 120px);
  color: var(--mist-200);
}

/* 面包屑 */
.page-disclaimer .breadcrumb {
  margin: 20px 0 28px;
}
.page-disclaimer .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.06em;
}
.page-disclaimer .breadcrumb-item {
  color: var(--steel-500);
}
.page-disclaimer .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--ink-700);
}
.page-disclaimer .breadcrumb-item a {
  color: var(--steel-500);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}
.page-disclaimer .breadcrumb-item a:hover,
.page-disclaimer .breadcrumb-item a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}
.page-disclaimer .breadcrumb-item[aria-current] {
  color: var(--cold-white);
}

/* 页首 */
.page-disclaimer .disc-head {
  max-width: 62rem;
}
.page-disclaimer .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--neon);
}
.page-disclaimer .page-title {
  margin: 0 0 20px;
  max-width: 14em;
  font-size: clamp(30px, 7.4vw, 54px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--cold-white);
}
.page-disclaimer .page-lede {
  margin: 0 0 30px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.65;
  color: var(--mist-200);
}

/* 头图 */
.page-disclaimer .disc-figure {
  margin: 0 0 clamp(36px, 6vw, 56px);
  max-width: 46rem;
}
.page-disclaimer .disc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--disc-hair);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  object-fit: cover;
  filter: saturate(0.78) contrast(1.06);
}
.page-disclaimer .disc-figure figcaption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--steel-500);
}

/* 摘要框 */
.page-disclaimer .disc-summary {
  position: relative;
  margin: 0 0 clamp(38px, 7vw, 72px);
  padding: 22px 22px 24px 26px;
  max-width: 62rem;
  background: linear-gradient(120deg, rgba(27, 47, 92, 0.55), rgba(11, 20, 40, 0.3) 72%);
  border-top: 1px solid var(--disc-hair);
  border-right: 1px solid var(--disc-hair);
  border-bottom: 1px solid var(--disc-hair);
  border-left: 2px solid var(--neon);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
}
.page-disclaimer .disc-summary-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}
.page-disclaimer .disc-summary-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-disclaimer .disc-summary-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.6;
}
.page-disclaimer .disc-summary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 1px;
  background: var(--steel-500);
}

/* 布局 */
.page-disclaimer .disc-layout {
  display: block;
}

/* 索引栏（移动端为吸顶横滑） */
.page-disclaimer .rail {
  position: sticky;
  top: calc(var(--header-h) + 6px);
  z-index: 4;
  margin: 0 0 30px;
  padding: 10px 0 10px;
  background: rgba(6, 11, 26, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--disc-hair);
}
.page-disclaimer .rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-500);
}
.page-disclaimer .rail-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.page-disclaimer .rail-nav::-webkit-scrollbar {
  display: none;
}
.page-disclaimer .rail-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--disc-hair);
  border-radius: var(--radius-pill);
  color: var(--mist-200);
  font-size: 12px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease), background-color var(--t) var(--ease);
}
.page-disclaimer .rail-link:hover {
  border-color: var(--hair-strong);
  color: var(--cold-white);
}
.page-disclaimer .rail-link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}
.page-disclaimer .rail-link.is-active {
  border-color: var(--neon);
  background: rgba(75, 255, 158, 0.08);
  color: var(--cold-white);
}
.page-disclaimer .rail-step {
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--steel-500);
}
.page-disclaimer .rail-link.is-active .rail-step {
  color: var(--neon);
}
.page-disclaimer .rail-meta {
  display: none;
}

/* 条款 */
.page-disclaimer .disc-content {
  min-width: 0;
}
.page-disclaimer .disc-clause {
  margin: 0 0 40px;
  padding: 2px 0 2px 18px;
  border-left: 1px solid var(--disc-hair);
  transition: border-color var(--t) var(--ease);
}
.page-disclaimer .disc-clause:hover,
.page-disclaimer .disc-clause:focus-within {
  border-left-color: var(--disc-hair-strong);
}
.page-disclaimer .disc-clause.is-key {
  border-left-color: var(--neon);
}
.page-disclaimer .disc-clause-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}
.page-disclaimer .disc-clause-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--steel-500);
}
.page-disclaimer .disc-clause.is-key .disc-clause-num {
  color: var(--neon);
}
.page-disclaimer .disc-clause .section-title {
  margin: 0;
  font-size: clamp(17px, 3.4vw, 21px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--cold-white);
}
.page-disclaimer .disc-clause .prose {
  max-width: 40em;
}
.page-disclaimer .disc-clause .prose p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.62;
}
.page-disclaimer .disc-clause .prose p:last-child {
  margin-bottom: 0;
}
.page-disclaimer .prose a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(75, 255, 158, 0.35);
  transition: border-color var(--t) var(--ease);
}
.page-disclaimer .prose a:hover,
.page-disclaimer .prose a:focus-visible {
  border-bottom-color: var(--neon);
}

/* 返回顶部 */
.page-disclaimer .disc-top {
  margin: 0;
  padding-top: 26px;
  border-top: 1px solid var(--disc-hair);
}

/* 桌面端：非对称两栏 */
@media (min-width: 900px) {
  .page-disclaimer .disc-layout {
    display: grid;
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 88px);
    align-items: start;
  }
  .page-disclaimer .rail {
    position: sticky;
    top: calc(var(--header-h) + 34px);
    margin: 0;
    padding: 4px 0 4px 20px;
    background: transparent;
    backdrop-filter: none;
    border-bottom: 0;
    border-left: 1px solid var(--disc-hair);
  }
  .page-disclaimer .rail-nav {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-disclaimer .rail-link {
    display: flex;
    width: 100%;
    padding: 9px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    white-space: normal;
    font-size: 13px;
  }
  .page-disclaimer .rail-link.is-active {
    background: transparent;
  }
  .page-disclaimer .rail-link.is-active .rail-label {
    color: var(--neon);
  }
  .page-disclaimer .rail-link:hover .rail-label {
    color: var(--cold-white);
  }
  .page-disclaimer .rail-meta {
    display: block;
    margin: 22px 0 0;
    font-size: 12px;
    line-height: 1.65;
    color: var(--steel-500);
  }
  .page-disclaimer .disc-summary {
    max-width: none;
  }
  .page-disclaimer .disc-clause {
    margin-bottom: 52px;
    padding-left: 24px;
  }
  .page-disclaimer .disc-clause:last-of-type {
    margin-bottom: 40px;
  }
}