.page-disclaimer {
  --doc-measure: 68ch;
  --rail-w: 116px;
  --doc-shell: 920px;
  display: block;
  background: var(--ink);
}

/* ============ 首屏 ============ */
.page-disclaimer .doc-hero {
  position: relative;
  background: var(--ink);
  padding: 24px 0 64px;
}

.page-disclaimer .doc-hero .breadcrumb {
  margin: 0 0 20px;
}

.page-disclaimer .doc-hero__frame {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 320px;
  padding: 40px 22px 34px;
  border: 1px solid var(--rule-strong);
}

.page-disclaimer .doc-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0.18;
  filter: saturate(0.45) contrast(1.05);
  z-index: 0;
}

.page-disclaimer .doc-hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(13, 20, 24, 0.32) 0%, rgba(13, 20, 24, 0.78) 58%, rgba(13, 20, 24, 0.95) 100%);
  pointer-events: none;
}

.page-disclaimer .doc-hero__body {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.page-disclaimer .doc-hero .eyebrow {
  margin: 0;
  color: var(--amber);
}

.page-disclaimer .doc-hero .h1 {
  margin: 14px 0 18px;
  color: var(--paper);
}

.page-disclaimer .doc-hero .lead {
  margin: 0;
  max-width: 56ch;
  color: var(--fog);
}

.page-disclaimer .doc-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--rule);
}

.page-disclaimer .doc-hero__meta li {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cold);
}

/* ============ 正文区 ============ */
.page-disclaimer .doc-body {
  background-color: var(--paper);
  background-image: repeating-linear-gradient(0deg, rgba(20, 49, 58, 0.03) 0 1px, transparent 1px 8px);
  color: var(--bridge);
  padding: 0 0 72px;
}

.page-disclaimer .doc-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  max-width: var(--doc-shell);
  margin: 0 auto;
  padding: 52px 22px 0;
}

.page-disclaimer .doc-col {
  min-width: 0;
  max-width: var(--doc-measure);
}

.page-disclaimer .doc-sec {
  padding: 0 0 38px;
  margin: 0 0 38px;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: calc(var(--header-h) + 96px);
}

.page-disclaimer .doc-sec--last {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 8px;
}

.page-disclaimer .doc-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 16px;
}

.page-disclaimer .doc-sec__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
  flex: none;
}

.page-disclaimer .doc-sec .h2 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--bridge);
}

.page-disclaimer .doc-sec p {
  margin: 0 0 1.1em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--bridge);
}

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

.page-disclaimer .doc-sec a {
  color: var(--dai);
  text-decoration: none;
  border-bottom: 1px solid rgba(42, 90, 99, 0.4);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-disclaimer .doc-sec a:hover,
.page-disclaimer .doc-sec a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-disclaimer .doc-note {
  position: relative;
  margin: 22px 0 0;
  padding: 14px 18px 14px 20px;
  border-left: 2px solid var(--stoppage);
  background: linear-gradient(90deg, rgba(200, 69, 61, 0.06), rgba(200, 69, 61, 0) 78%);
  font-size: 16px;
  line-height: 1.8;
  color: var(--bridge);
}

/* 编号列表 */
.page-disclaimer .doc-list {
  list-style: none;
  counter-reset: docitem;
  margin: 20px 0 0;
  padding: 0;
}

.page-disclaimer .doc-list li {
  counter-increment: docitem;
  position: relative;
  padding-left: 42px;
  margin-bottom: 12px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--bridge);
}

.page-disclaimer .doc-list li:last-child {
  margin-bottom: 0;
}

.page-disclaimer .doc-list li::before {
  content: counter(docitem, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* 引用格式框 */
.page-disclaimer .cite-box {
  position: relative;
  margin: 26px 0 0;
  padding: 18px 18px 16px;
  border: 1px solid var(--rule-strong);
  background: var(--fog);
}

.page-disclaimer .cite-box::before,
.page-disclaimer .cite-box::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--amber);
  pointer-events: none;
}

.page-disclaimer .cite-box::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-disclaimer .cite-box::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

.page-disclaimer .cite-box__cap {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--mist);
}

.page-disclaimer .cite-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--bridge);
  white-space: pre-wrap;
  word-break: break-word;
  tab-size: 2;
}

/* 场景对照表 */
.page-disclaimer .doc-table-wrap {
  margin: 26px 0 0;
  overflow-x: auto;
  border: 1px solid var(--rule-strong);
  background: var(--paper);
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .doc-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.page-disclaimer .doc-table th,
.page-disclaimer .doc-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule);
  font-size: 15px;
  line-height: 1.6;
  color: var(--bridge);
  vertical-align: top;
}

.page-disclaimer .doc-table thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--mist);
  background: var(--fog);
  white-space: nowrap;
}

.page-disclaimer .doc-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-disclaimer .doc-table tbody tr {
  transition: background-color 0.18s var(--ease);
}

.page-disclaimer .doc-table tbody tr:hover {
  background: rgba(44, 198, 174, 0.07);
}

.page-disclaimer .doc-table td:first-child {
  font-weight: 600;
}

/* 联系方式列表 */
.page-disclaimer .contact-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-disclaimer .contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 16px;
  line-height: 1.6;
}

.page-disclaimer .contact-list__k {
  flex: none;
  width: 96px;
  color: var(--mist);
  font-size: 14px;
  letter-spacing: 0.06em;
}

.page-disclaimer .contact-list__v {
  color: var(--bridge);
  word-break: break-word;
}

/* ============ 右侧刻度栏（移动端为横滑分类条） ============ */
.page-disclaimer .doc-rail {
  order: -1;
  position: sticky;
  top: var(--header-h);
  z-index: 5;
  margin: 0 -22px;
  padding: 10px 0;
  background: rgba(251, 252, 252, 0.94);
  border-bottom: 1px solid var(--rule-strong);
  backdrop-filter: blur(6px);
}

.page-disclaimer .doc-rail__label {
  display: none;
  margin: 0;
}

.page-disclaimer .doc-rail__list {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0 22px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-disclaimer .doc-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-disclaimer .doc-rail__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cold);
}

.page-disclaimer .doc-rail__link:hover,
.page-disclaimer .doc-rail__link:focus-visible {
  color: var(--dai);
  border-bottom-color: var(--teal);
}

.page-disclaimer .doc-rail__link:hover .doc-rail__no,
.page-disclaimer .doc-rail__link:focus-visible .doc-rail__no {
  color: var(--orange);
}

/* ============ 版本刻度 ============ */
.page-disclaimer .doc-versions {
  background: var(--fog);
  color: var(--bridge);
  padding: 56px 0 64px;
}

.page-disclaimer .doc-versions .eyebrow {
  margin: 0 0 10px;
  color: var(--dai);
}

.page-disclaimer .doc-versions__title {
  margin: 0;
  font-size: 26px;
  color: var(--bridge);
}

.page-disclaimer .vtrack {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 30px 0 0;
  padding: 0;
}

.page-disclaimer .vtrack__item {
  position: relative;
  padding: 0 0 0 26px;
}

.page-disclaimer .vtrack__item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 4px;
  bottom: -18px;
  width: 1px;
  background: var(--rule-strong);
}

.page-disclaimer .vtrack__item:last-child::before {
  bottom: auto;
  height: 14px;
}

.page-disclaimer .vtrack__item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--dai);
}

.page-disclaimer .vtrack__item.is-current::after {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(228, 118, 42, 0.18);
}

.page-disclaimer .vtrack__ver {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-disclaimer .vtrack__item.is-current .vtrack__ver {
  color: var(--orange);
}

.page-disclaimer .vtrack__txt {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--bridge);
}

.page-disclaimer .doc-source {
  margin: 34px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ============ 中屏及以上 ============ */
@media (min-width: 720px) {
  .page-disclaimer .doc-hero {
    padding: 28px 0 76px;
  }

  .page-disclaimer .doc-hero__frame {
    min-height: 400px;
    padding: 56px 48px 46px;
  }

  .page-disclaimer .doc-hero .h1 {
    font-size: 56px;
  }

  .page-disclaimer .doc-shell {
    padding: 72px 24px 0;
  }

  .page-disclaimer .doc-sec {
    padding-bottom: 46px;
    margin-bottom: 46px;
  }

  .page-disclaimer .doc-sec .h2 {
    font-size: 28px;
  }

  .page-disclaimer .doc-body {
    padding-bottom: 88px;
  }

  .page-disclaimer .doc-versions {
    padding: 64px 0 76px;
  }

  .page-disclaimer .doc-versions__title {
    font-size: 30px;
  }
}

/* ============ 桌面双栏 ============ */
@media (min-width: 1000px) {
  .page-disclaimer .doc-shell {
    grid-template-columns: minmax(0, 1fr) var(--rail-w);
    gap: 48px;
    align-items: start;
    padding: 88px 24px 0;
  }

  .page-disclaimer .doc-rail {
    order: 0;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    z-index: 1;
    margin: 0;
    padding: 2px 0 0 17px;
    background: transparent;
    border-bottom: 0;
    border-left: 1px solid var(--rule-strong);
    backdrop-filter: none;
  }

  .page-disclaimer .doc-rail__label {
    display: block;
    margin: 0 0 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.26em;
    color: var(--mist);
  }

  .page-disclaimer .doc-rail__list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
  }

  .page-disclaimer .doc-rail__link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-left: -18px;
    padding: 6px 0 6px 16px;
    border-bottom: 0;
    border-left: 1px solid transparent;
    white-space: normal;
    font-size: 13px;
  }

  .page-disclaimer .doc-rail__link:hover,
  .page-disclaimer .doc-rail__link:focus-visible {
    border-left-color: var(--orange);
    color: var(--dai);
  }

  .page-disclaimer .vtrack {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
    margin-top: 40px;
  }

  .page-disclaimer .vtrack__item {
    padding: 26px 20px 0 0;
  }

  .page-disclaimer .vtrack__item::before {
    left: 0;
    right: 0;
    top: 5px;
    bottom: auto;
    width: auto;
    height: 1px;
  }

  .page-disclaimer .vtrack__item:last-child::before {
    height: 1px;
  }

  .page-disclaimer .vtrack__item::after {
    left: 0;
    top: 1px;
  }
}

/* ============ 动效兼容 ============ */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-sec a,
  .page-disclaimer .doc-rail__link,
  .page-disclaimer .doc-table tbody tr {
    transition: opacity 0.15s linear;
  }
}
</main>