/* ===== 使用说明页 · 条款正文 ===== */

.page-disclaimer .breadcrumb {
  padding-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-disclaimer .disc-head {
  padding-block: var(--space-6) var(--space-8);
}

.page-disclaimer .disc-head h1 {
  font-size: var(--text-4xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-3);
  max-width: 22ch;
}

.page-disclaimer .disc-head__lead {
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-disclaimer .disc-head__meta {
  margin-top: var(--space-4);
}

/* ---- 主体两栏 ---- */

.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

@media (min-width: 960px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: var(--space-8);
  }
}

/* ---- 章节索引 ---- */

.page-disclaimer .disc-toc {
  font-size: var(--text-sm);
}

@media (min-width: 960px) {
  .page-disclaimer .disc-toc {
    position: sticky;
    top: 88px;
    align-self: start;
  }
}

.page-disclaimer .disc-toc__label {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-2);
}

.page-disclaimer .disc-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
  border-left: var(--border-thin) solid var(--color-line);
}

.page-disclaimer .disc-toc a {
  display: block;
  padding: var(--space-1) var(--space-1) var(--space-1) var(--space-2);
  margin-left: calc(var(--border-thin) * -1);
  border-left: 2px solid transparent;
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: color 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

.page-disclaimer .disc-toc a:hover,
.page-disclaimer .disc-toc a:focus-visible {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

/* ---- 条款流 ---- */

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

.page-disclaimer .clause {
  position: relative;
  padding: var(--space-6) 0 var(--space-6) var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  box-shadow: inset 4px 0 0 transparent;
  scroll-margin-top: 96px;
  transition: box-shadow 280ms ease;
}

.page-disclaimer .clause:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .clause:target {
  box-shadow: inset 4px 0 0 var(--color-accent);
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-disclaimer .clause__num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-accent);
  line-height: 1;
  position: relative;
  padding-bottom: var(--space-1);
  flex: none;
}

.page-disclaimer .clause__num::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

.page-disclaimer .clause__title {
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: 0;
}

.page-disclaimer .clause__body {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-disclaimer .clause__body p {
  margin: 0 0 var(--space-3);
}

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

.page-disclaimer .clause__body a {
  color: var(--color-primary);
}

.page-disclaimer .clause__list {
  list-style: none;
  margin: var(--space-3) 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: var(--space-3);
  line-height: var(--leading-body);
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--color-primary);
}

.page-disclaimer .clause__scene {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  padding-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: var(--leading-body);
  background-image: repeating-linear-gradient(
    to right,
    var(--color-line) 0,
    var(--color-line) 12px,
    transparent 12px,
    transparent 22px
  );
  background-repeat: no-repeat;
  background-size: 100% 1px;
  background-position: top left;
}

.page-disclaimer .clause__scene b {
  font-weight: var(--weight-heading);
  color: var(--color-ink-soft);
  margin-right: var(--space-1);
}

/* ---- 归档纹理图 ---- */

.page-disclaimer .disc-figure {
  margin: 0 0 var(--space-4);
}

.page-disclaimer .disc-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface-deep);
}

.page-disclaimer .disc-figure .media-frame__caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  line-height: var(--leading-body);
}

/* ---- 保留期横带 ---- */

.page-disclaimer .disc-band {
  margin-block: var(--space-6);
  padding: var(--space-6);
  background-color: var(--color-highlight);
  border-radius: var(--radius-lg);
  scroll-margin-top: 96px;
}

.page-disclaimer .disc-band__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 760px) {
  .page-disclaimer .disc-band__grid {
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-8);
  }
}

.page-disclaimer .disc-band__figure {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  line-height: 1;
}

.page-disclaimer .disc-band__figure .figure-num {
  font-size: var(--text-figure);
  letter-spacing: -0.02em;
}

.page-disclaimer .disc-band__unit {
  font-size: var(--text-xl);
  color: var(--color-accent);
}

.page-disclaimer .disc-band__label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-disclaimer .disc-band__copy {
  margin: 0 0 var(--space-4);
  max-width: 52ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-disclaimer .disc-band .btn {
  text-decoration: none;
}

/* ---- 更正步骤折叠组 ---- */

.page-disclaimer .disc-pair {
  margin: var(--space-3) 0 var(--space-4);
}

.page-disclaimer .disc-steps {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.page-disclaimer .disc-steps .expand-group {
  border-radius: var(--radius-md);
  background-color: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-disclaimer .disc-steps .expand-group summary {
  cursor: pointer;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  line-height: var(--leading-heading);
  list-style: none;
}

.page-disclaimer .disc-steps .expand-group summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-steps .expand-group summary::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 2px;
  margin-right: var(--space-2);
  vertical-align: middle;
  border-radius: 2px;
  background-color: var(--color-primary);
  transition: width 240ms ease, background-color 240ms ease;
}

.page-disclaimer .disc-steps .expand-group[open] summary::before {
  width: 22px;
  background-color: var(--color-accent);
}

.page-disclaimer .disc-steps .expand-group[open] summary {
  color: var(--color-accent);
}

.page-disclaimer .disc-steps .expand-group__body {
  padding: 0 var(--space-4) var(--space-4);
  border-left: 3px solid var(--color-highlight);
  margin-left: var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-disclaimer .disc-steps .expand-group__body p {
  margin: 0;
}

/* ---- 收口区 ---- */

.page-disclaimer .disc-close {
  padding-block: var(--space-2);
}

.page-disclaimer .disc-close__summary {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-disclaimer .disc-close__links {
  margin-top: var(--space-4);
}

.page-disclaimer .disc-close__links .btn {
  text-decoration: none;
}

.page-disclaimer .disc-scales {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  height: 20px;
  margin-top: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-disclaimer .disc-scales span {
  width: 1px;
  height: 6px;
  background-color: var(--color-ink-muted);
  opacity: 0.7;
}

.page-disclaimer .disc-scales span:nth-child(3n) {
  height: 12px;
}

.page-disclaimer .disc-scales span:nth-child(5n) {
  height: 17px;
  opacity: 1;
}

/* ---- 状态胶囊补充 ---- */

.page-disclaimer .status-pill {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .clause,
  .page-disclaimer .disc-toc a,
  .page-disclaimer .disc-steps .expand-group summary::before {
    transition: none;
  }
}