/* ===== 网站声明页：说明牌式阅读节奏 ===== */
.page-disclaimer {
  --disc-narrow: 64ch;
  --disc-gap: clamp(26px, 5vw, 54px);
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(64px, 10vw, 112px);
}

.page-disclaimer .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 13px;
}

/* ---------- 首屏：分屏叙事 ---------- */
.page-disclaimer .disc-hero {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  padding-block: clamp(20px, 3.5vw, 34px) clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-hero__eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--blue-mid);
  margin-bottom: 14px;
}

.page-disclaimer .disc-hero__title {
  margin: 0 0 16px;
  font-size: clamp(30px, 6vw, 46px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-disclaimer .disc-hero__lede {
  margin: 0 0 22px;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-disclaimer .disc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.page-disclaimer .disc-hero__meta .mono {
  display: inline-block;
  padding: 5px 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--blue);
  border: 1px solid var(--line);
  background: var(--paper-2);
}

.page-disclaimer .disc-hero__figure {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
}

.page-disclaimer .disc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 14 / 9;
  filter: saturate(0.72) contrast(1.04);
}

.page-disclaimer .disc-hero__caption {
  display: block;
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

/* ---------- 主布局：正文 + 右缘编号索带 ---------- */
.page-disclaimer .disc-layout {
  display: flex;
  flex-direction: column;
  padding-top: clamp(26px, 4vw, 46px);
}

.page-disclaimer .disc-flow {
  min-width: 0;
}

.page-disclaimer .num-rail {
  order: -1;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-disclaimer .num-rail__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--ink-soft);
  text-decoration: none;
  border: 1px solid var(--line);
  background: transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-disclaimer .num-rail__item:hover {
  color: var(--blue);
  border-color: var(--line-strong);
  background: var(--paper-2);
}

.page-disclaimer .num-rail__item:focus-visible {
  outline: 2px solid var(--blue-mid);
  outline-offset: 1px;
}

.page-disclaimer .num-rail__item[data-active] {
  color: var(--blue);
  border-color: var(--blue-mid);
  background: var(--blue-soft);
}

.page-disclaimer .num-rail__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue-mid);
}

.page-disclaimer .num-rail__label {
  white-space: nowrap;
}

/* ---------- 章节：说明牌式结构 ---------- */
.page-disclaimer .disc-section {
  padding-block: var(--disc-gap);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-section:last-of-type {
  border-bottom: 0;
  padding-bottom: clamp(18px, 3vw, 30px);
}

.page-disclaimer .disc-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-disclaimer .disc-stamp {
  flex: 0 0 auto;
  display: inline-block;
  padding: 4px 9px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--blue);
  border: 1px solid var(--blue-line);
  background: var(--blue-soft);
  white-space: nowrap;
}

.page-disclaimer .disc-section__title {
  margin: 0;
  flex: 1 1 auto;
  min-width: 12ch;
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-disclaimer .disc-section__body {
  max-width: var(--disc-narrow);
}

.page-disclaimer .disc-section__body p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink);
}

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

.page-disclaimer .disc-section__body a {
  color: var(--blue-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-mid);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .disc-section__body a:hover {
  color: var(--blue);
  border-color: var(--blue);
}

.page-disclaimer .disc-section__body a:focus-visible {
  outline: 2px solid var(--blue-mid);
  outline-offset: 2px;
}

/* ---------- 版本优先级三段式对照条 ---------- */
.page-disclaimer .version-ladder {
  display: flex;
  flex-direction: column;
  margin-top: 26px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .version-ladder__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease), padding-inline var(--dur) var(--ease);
}

.page-disclaimer .version-ladder__row:hover {
  background: var(--paper-2);
  padding-inline: 12px;
}

.page-disclaimer .version-ladder__row:focus-visible {
  outline: 2px solid var(--blue-mid);
  outline-offset: -2px;
}

.page-disclaimer .version-ladder__badge {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.page-disclaimer .version-ladder__year {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--blue);
}

.page-disclaimer .version-ladder__chip {
  display: inline-block;
  padding: 2px 7px;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: var(--blue);
  border: 1px solid var(--blue);
}

.page-disclaimer .version-ladder__chip--soft {
  color: var(--ink-soft);
  background: transparent;
  border-color: var(--line-strong);
}

.page-disclaimer .version-ladder__copy {
  min-width: 0;
}

.page-disclaimer .version-ladder__label {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink);
}

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

/* ---------- 反馈入口 ---------- */
.page-disclaimer .disc-follow {
  display: none;
}

/* ---------- 桌面：偏轴窄栏 + 右缘索带 ---------- */
@media (min-width: 768px) {
  .page-disclaimer .disc-section__body {
    margin-left: clamp(0px, 10%, 96px);
  }

  .page-disclaimer .version-ladder__row {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 6px 26px;
  }

  .page-disclaimer .version-ladder__row:nth-child(2) {
    margin-left: 18px;
  }

  .page-disclaimer .version-ladder__row:nth-child(3) {
    margin-left: 36px;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .disc-hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    align-items: end;
    gap: clamp(36px, 5vw, 68px);
  }

  .page-disclaimer .disc-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 150px;
    gap: 56px;
    align-items: start;
  }

  .page-disclaimer .num-rail {
    order: 0;
    position: sticky;
    top: 108px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    overflow: visible;
    padding: 0 0 0 18px;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-disclaimer .num-rail__item {
    border-color: transparent;
    border-left-width: 0;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .disc-follow {
    display: block;
    position: fixed;
    right: 28px;
    bottom: 36px;
    z-index: 6;
  }

  .page-disclaimer .disc-follow .btn {
    box-shadow: 0 6px 18px rgba(11, 26, 43, 0.22);
  }
}