/* ============ 使用说明页 · page-disclaimer ============ */
.page-disclaimer {
  --disc-rule: 1px solid var(--edge);
  --disc-rule-strong: 1px solid var(--grid);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: 72px;
  overflow-x: hidden;
}

.page-disclaimer .disc-crumbs {
  padding: 20px 0 4px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  padding-top: 12px;
}

.page-disclaimer .disc-hero__eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0 0 16px;
}

.page-disclaimer .disc-hero__title {
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(32px, 6.6vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0 0 20px;
  max-width: 17ch;
}

.page-disclaimer .disc-hero__lede {
  font-size: 17px;
  line-height: 1.75;
  color: var(--grey);
  max-width: 60ch;
  margin: 0;
}

/* ---------- 砖红摘要条 ---------- */
.page-disclaimer .disc-summary {
  margin-top: 28px;
  padding: 18px 22px;
  background: var(--brick);
  border-left: 6px solid var(--brick-deep);
  box-shadow: var(--shadow-stack);
  color: var(--paper);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 34px;
  align-items: baseline;
}

.page-disclaimer .disc-summary__item {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
}

.page-disclaimer .disc-summary__key {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(242, 240, 234, 0.76);
}

.page-disclaimer .disc-summary__val {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

/* ---------- 顶部窄幅图 ---------- */
.page-disclaimer .disc-figure-wrap {
  margin: 34px auto 0;
}

.page-disclaimer .disc-figure-wrap .figure__frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

/* ---------- 正文区 ---------- */
.page-disclaimer .disc-body {
  margin-top: 48px;
}

.page-disclaimer .disc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--disc-rule-strong);
  counter-reset: none;
}

.page-disclaimer .disc-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 24px 0;
  border-bottom: var(--disc-rule-strong);
  scroll-margin-top: 96px;
}

.page-disclaimer .disc-item__no {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
}

.page-disclaimer .disc-item__title {
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 10px;
}

.page-disclaimer .disc-item__body p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--grey);
  max-width: 64ch;
  margin: 0 0 10px;
}

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

.page-disclaimer .disc-item__body a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-disclaimer .disc-item__body a:hover,
.page-disclaimer .disc-item__body a:focus-visible {
  color: var(--paper);
  background: var(--brick);
  text-decoration-color: transparent;
}

.page-disclaimer .disc-item__copy {
  margin-top: 14px;
  max-width: 64ch;
}

/* ---------- 侧栏条目索引 ---------- */
.page-disclaimer .disc-toc {
  margin-top: 34px;
  padding: 18px 18px 14px;
  background: var(--panel);
  border: var(--disc-rule);
  border-top: 4px solid var(--brick);
}

.page-disclaimer .disc-toc .toc__head {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 12px;
}

.page-disclaimer .disc-toc .toc__link {
  display: block;
  padding: 8px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--grey);
  border-bottom: 1px solid var(--edge);
  text-decoration: none;
}

.page-disclaimer .disc-toc .toc__link:last-child {
  border-bottom: 0;
}

.page-disclaimer .disc-toc .toc__link:hover,
.page-disclaimer .disc-toc .toc__link:focus-visible {
  color: var(--paper);
}

.page-disclaimer .disc-toc .toc__link.is-active {
  color: var(--neon);
  border-left: 3px solid var(--neon);
  padding-left: 10px;
  margin-left: -13px;
}

/* ---------- 底部下一步 ---------- */
.page-disclaimer .disc-next {
  margin-top: 56px;
}

.page-disclaimer .disc-next__panel {
  background: var(--panel);
  border: var(--disc-rule);
  border-left: 6px solid var(--brick);
  box-shadow: var(--shadow-stack);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-disclaimer .disc-next__kicker {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brick-light);
  margin: 0 0 8px;
}

.page-disclaimer .disc-next__title {
  font-family: var(--sans);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
}

.page-disclaimer .disc-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .disc-next__actions .btn {
  flex: 1 1 auto;
  text-align: center;
  min-width: 148px;
}

/* ---------- 焦点可见性 ---------- */
.page-disclaimer a:focus-visible,
.page-disclaimer button:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

/* ---------- 中屏起：编号与正文分栏 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .disc-item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 0 8px;
    padding: 30px 0;
  }

  .page-disclaimer .disc-item__no {
    font-size: 30px;
    padding-top: 3px;
  }

  .page-disclaimer .disc-item__title {
    font-size: 23px;
  }

  .page-disclaimer .disc-summary {
    padding: 20px 28px;
  }
}

/* ---------- 宽屏：底部条横向排布 ---------- */
@media (min-width: 860px) {
  .page-disclaimer .disc-next__panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 30px 34px;
  }

  .page-disclaimer .disc-next__actions {
    flex: 0 0 auto;
    flex-wrap: nowrap;
  }

  .page-disclaimer .disc-next__actions .btn {
    flex: 0 0 auto;
    min-width: 0;
  }
}

/* ---------- 打印：只留正文条目 ---------- */
@media print {
  .page-disclaimer .disc-figure-wrap,
  .page-disclaimer .disc-toc,
  .page-disclaimer .disc-next,
  .page-disclaimer .disc-summary,
  .page-disclaimer .disc-item__copy {
    display: none !important;
  }

  .page-disclaimer .disc-item {
    page-break-inside: avoid;
    border-bottom: 1px solid #999;
  }

  .page-disclaimer .disc-item__body p,
  .page-disclaimer .disc-item__title,
  .page-disclaimer .disc-hero__title,
  .page-disclaimer .disc-hero__lede,
  .page-disclaimer .disc-item__no {
    color: #000 !important;
  }
}
</main>