/* ===== 合规说明 · 页面专属样式（作用域 .page-certification） ===== */

.page-certification {
  --cert-nav-w: 224px;
  --cert-num-w: 56px;
}

.page-certification .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-certification .cert-hero {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--space-6) var(--space-8);
}

.page-certification .cert-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

.page-certification .cert-crumb__link {
  color: var(--color-contrast-ink);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 180ms ease-out;
}

.page-certification .cert-crumb__link:hover,
.page-certification .cert-crumb__link:focus-visible {
  opacity: 1;
}

.page-certification .cert-crumb__sep {
  color: var(--color-contrast-line);
}

.page-certification .cert-crumb__here {
  color: var(--color-contrast-accent);
}

.page-certification .cert-hero__eyebrow {
  margin: var(--space-6) 0 0;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-contrast-accent);
}

.page-certification .cert-hero__title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.05;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-certification .cert-hero__rule {
  display: block;
  width: 72px;
  height: var(--border-thin);
  margin-top: var(--space-4);
  background-color: var(--color-contrast-accent);
}

.page-certification .cert-hero__lede {
  max-width: 46ch;
  margin: var(--space-4) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, var(--color-contrast-surface));
}

.page-certification .cert-hero__figures {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-certification .cert-hero__figure-value {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-certification .cert-hero__figure-unit {
  margin-left: 0.18em;
  font-size: var(--text-lg);
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-certification .cert-hero__figure-label {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

/* ---------- 文档主体 ---------- */
.page-certification .cert-doc {
  background-color: var(--color-surface);
  padding-block: var(--space-8);
}

.page-certification .cert-doc__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.page-certification .cert-nav {
  padding-bottom: var(--space-4);
  max-height: calc(var(--space-8) * 5);
  overflow-y: auto;
}

.page-certification .cert-nav__label {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-certification .cert-nav__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: calc(var(--space-1) * 0.5);
}

.page-certification .cert-nav__group {
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-certification .cert-nav__group:first-child {
  margin-top: 0;
}

.page-certification .cert-nav__link {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: calc(var(--space-1) * 0.5) var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color 180ms ease-out, background-color 180ms ease-out;
}

.page-certification .cert-nav__link:hover,
.page-certification .cert-nav__link:focus-visible {
  color: var(--color-ink);
  background-color: var(--color-primary-soft);
}

.page-certification .cert-nav__link.is-current {
  color: var(--color-ink);
  background-color: var(--color-primary-soft);
}

.page-certification .cert-nav__num {
  flex: none;
  min-width: 1.9em;
  padding: 1px 0;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  border-radius: var(--radius-sm);
  transition: background-color 180ms ease-out, color 180ms ease-out;
}

.page-certification .cert-nav__link.is-current .cert-nav__num {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-certification .cert-nav__text {
  min-width: 0;
}

.page-certification .cert-article {
  min-width: 0;
}

/* ---------- 分类区块 ---------- */
.page-certification .cert-group {
  padding: var(--space-4) 0;
  scroll-margin-top: calc(var(--space-8) * 1.5);
}

.page-certification .cert-group--a {
  background-color: var(--color-surface-alt);
}

.page-certification .cert-group--b {
  background-color: var(--color-surface-deep);
}

.page-certification .cert-group--c {
  background-color: var(--color-surface-alt);
}

.page-certification .cert-group + .cert-group {
  margin-top: var(--space-4);
}

.page-certification .cert-group__kind {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-certification .cert-group__kind .num {
  color: var(--color-accent);
}

.page-certification .cert-group__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-certification .cert-group__note {
  max-width: var(--measure);
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 图录 ---------- */
.page-certification .cert-figure {
  margin: var(--space-6) 0 0;
}

.page-certification .cert-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background-color: var(--color-primary-soft);
}

.page-certification .cert-figure__caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* ---------- 条目 ---------- */
.page-certification .cert-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
  scroll-margin-top: calc(var(--space-8) * 1.5);
}

.page-certification .cert-item__no {
  display: inline-block;
  font-size: var(--text-2xl);
  line-height: 1;
  letter-spacing: 0;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 180ms ease-out;
}

.page-certification .cert-item__no:hover,
.page-certification .cert-item__no:focus-visible {
  color: var(--color-focus);
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 4px;
}

.page-certification .cert-item__body {
  min-width: 0;
}

.page-certification .cert-item__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-certification .cert-item__text {
  max-width: var(--measure);
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-certification .cert-item__meta {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-3) 0 0;
}

.page-certification .cert-item__meta > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-2);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
}

.page-certification .cert-item__meta dt {
  flex: none;
  min-width: 5.2em;
  color: var(--color-ink-muted);
}

.page-certification .cert-item__meta dd {
  flex: 1 1 16ch;
  min-width: 0;
  margin: 0;
  color: var(--color-ink-soft);
}

.page-certification .cert-group__summary {
  margin: var(--space-6) 0 0;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 要点收纳 ---------- */
.page-certification .cert-recap {
  margin-top: var(--space-8);
  padding: var(--space-4);
  background-color: var(--color-primary-soft);
}

.page-certification .cert-recap__summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-certification .cert-recap__summary::-webkit-details-marker {
  display: none;
}

.page-certification .cert-recap__summary::after {
  content: "＋";
  float: right;
  color: var(--color-accent);
}

.page-certification .cert-recap[open] .cert-recap__summary::after {
  content: "－";
}

.page-certification .cert-recap__summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 4px;
}

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

.page-certification .cert-recap__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-certification .cert-recap__tag {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.8em;
  height: 1.8em;
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  font-size: var(--text-xs);
  line-height: 1;
  border-radius: var(--radius-sm);
}

/* ---------- 相邻主题 ---------- */
.page-certification .cert-next {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-certification .cert-next__label {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-certification .cert-next__list {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-certification .cert-next__link {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--color-accent) 55%, transparent);
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 5px;
  transition: color 180ms ease-out, text-decoration-color 180ms ease-out;
}

.page-certification .cert-next__link:hover,
.page-certification .cert-next__link:focus-visible {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-certification .cert-hero__figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .page-certification .cert-item {
    grid-template-columns: var(--cert-num-w) minmax(0, 1fr);
    gap: var(--space-3);
  }

  .page-certification .cert-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2) var(--space-6);
  }
}

@media (min-width: 720px) {
  .page-certification .cert-hero {
    padding-block: var(--space-8) calc(var(--space-8) * 1.5);
  }

  .page-certification .cert-group {
    padding: var(--space-6);
  }

  .page-certification .cert-group__summary {
    padding: var(--space-4) var(--space-6);
  }

  .page-certification .cert-recap {
    padding: var(--space-6);
  }
}

@media (min-width: 900px) {
  .page-certification .cert-doc__inner {
    grid-template-columns: var(--cert-nav-w) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-certification .cert-nav {
    position: sticky;
    top: var(--space-6);
    max-height: none;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-certification .cert-group__title {
    font-size: var(--text-4xl);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-certification .cert-nav__link,
  .page-certification .cert-nav__num,
  .page-certification .cert-item__no,
  .page-certification .cert-crumb__link,
  .page-certification .cert-next__link {
    transition: none;
  }
}