.page-certification {
  --cert-block: var(--space-3);
}

/* ---------- 面包屑 ---------- */
.page-certification .cert-crumb {
  margin-bottom: var(--space-4);
}
.page-certification .cert-crumb__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  font-weight: 600;
}
.page-certification .cert-crumb__item a {
  color: color-mix(in srgb, var(--color-primary-ink) 78%, transparent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 40%, transparent);
  padding-bottom: 2px;
}
.page-certification .cert-crumb__item a:hover,
.page-certification .cert-crumb__item a:focus-visible {
  color: var(--color-primary-ink);
  border-bottom-color: var(--color-primary-ink);
}
.page-certification .cert-crumb__item--sep {
  color: color-mix(in srgb, var(--color-primary-ink) 45%, transparent);
}
.page-certification .cert-crumb__item--current {
  color: var(--color-primary-ink);
}

/* ---------- 首屏 ---------- */
.page-certification .cert-hero {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  padding-block: var(--space-6) var(--space-8);
}
.page-certification .cert-hero__grid {
  display: grid;
  gap: var(--space-6);
}
.page-certification .cert-hero__kicker {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.22em;
  color: color-mix(in srgb, var(--color-primary-ink) 72%, transparent);
}
.page-certification .cert-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: var(--tracking-heading);
  max-width: 14ch;
}
.page-certification .cert-hero__lede {
  margin: var(--space-4) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  max-width: 46ch;
  color: color-mix(in srgb, var(--color-primary-ink) 86%, transparent);
}
.page-certification .cert-figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 42%, transparent);
}
.page-certification .cert-figure {
  padding: var(--space-3) var(--space-2) var(--space-3) 0;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 42%, transparent);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.page-certification .cert-figure__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-figure);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.02em;
}
.page-certification .cert-figure__label {
  font-size: var(--text-sm);
  line-height: 1.5;
  color: color-mix(in srgb, var(--color-primary-ink) 84%, transparent);
}

/* ---------- 章节骨架 ---------- */
.page-certification .cert-section {
  padding-block: var(--section-y);
}
.page-certification .cert-section--surface {
  background: var(--color-surface);
  color: var(--color-ink);
}
.page-certification .cert-section--alt {
  background: var(--color-surface-alt);
  color: var(--color-ink);
}
.page-certification .cert-section--deep {
  background: var(--color-surface-deep);
  color: var(--color-ink);
}
.page-certification .cert-section--dark {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

/* ---------- 区块头 ---------- */
.page-certification .cert-head {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  max-width: var(--measure);
}
.page-certification .cert-head__rule {
  display: block;
  width: var(--space-8);
  height: var(--border-thick);
  background: var(--color-accent);
  margin-bottom: var(--space-1);
}
.page-certification .cert-section--dark .cert-head__rule {
  background: var(--color-contrast-accent);
}
.page-certification .cert-head__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}
.page-certification .cert-head__lede {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}
.page-certification .cert-section--dark .cert-head__lede {
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

/* ---------- 图片 ---------- */
.page-certification .cert-media {
  margin: 0 0 var(--space-6);
  background: var(--color-surface-deep);
}
.page-certification .cert-section--dark .cert-media {
  background: var(--color-contrast-line);
}
.page-certification .cert-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}
.page-certification .cert-media__caption {
  margin: 0;
  padding: var(--space-2) 0 0;
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
  border-top: var(--border-thin) solid var(--color-line);
  margin-top: var(--space-2);
}
.page-certification .cert-section--dark .cert-media__caption {
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
  border-top-color: var(--color-contrast-line);
}

/* ---------- 条目列表 ---------- */
.page-certification .cert-list {
  display: grid;
  border-top: var(--border-thin) solid var(--color-line);
}
.page-certification .cert-section--dark .cert-list {
  border-top-color: var(--color-contrast-line);
}
.page-certification .cert-item {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: background-color 160ms ease;
}
.page-certification .cert-section--dark .cert-item {
  border-bottom-color: var(--color-contrast-line);
}
.page-certification .cert-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
}
.page-certification .cert-item__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: var(--leading-heading);
  position: relative;
  padding-left: var(--space-3);
}
.page-certification .cert-item__name::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: var(--space-1);
  height: var(--space-1);
  background: var(--color-primary);
}
.page-certification .cert-section--dark .cert-item__name::before {
  background: var(--color-contrast-accent);
}
.page-certification .cert-item__pulse {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  padding: 2px var(--space-1);
  color: var(--color-accent);
  background: var(--color-highlight);
  opacity: 0;
  transition: opacity 160ms ease;
}
.page-certification .cert-section--dark .cert-item__pulse {
  color: var(--color-contrast-surface);
  background: var(--color-contrast-accent);
}
.page-certification .cert-item:hover .cert-item__pulse,
.page-certification .cert-item:focus-within .cert-item__pulse {
  opacity: 1;
}
.page-certification .cert-item__specs {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}
.page-certification .cert-spec {
  display: grid;
  grid-template-columns: minmax(4.5em, 5.5em) minmax(0, 1fr);
  gap: var(--space-2);
  align-items: baseline;
}
.page-certification .cert-spec__k {
  margin: 0;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}
.page-certification .cert-section--dark .cert-spec__k {
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}
.page-certification .cert-spec__v {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.6;
}

/* ---------- 侧注 ---------- */
.page-certification .cert-aside {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
  max-width: var(--measure);
}
.page-certification .cert-aside--dark {
  border-top-color: var(--color-contrast-line);
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}
.page-certification .cert-aside a {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
  padding-bottom: 1px;
}
.page-certification .cert-aside--dark a {
  color: var(--color-contrast-accent);
  border-bottom-color: var(--color-contrast-accent);
}
.page-certification .cert-aside a:hover,
.page-certification .cert-aside a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}
.page-certification .cert-aside--dark a:hover,
.page-certification .cert-aside--dark a:focus-visible {
  color: var(--color-contrast-ink);
  border-bottom-color: var(--color-contrast-ink);
}

/* ---------- 凭证筛选 ---------- */
.page-certification .cert-vbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0 0 var(--space-6);
  padding: 0;
  border: 0;
  background: transparent;
}
.page-certification .cert-vbtn {
  appearance: none;
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-contrast-ink);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.page-certification .cert-vbtn:hover {
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-accent);
}
.page-certification .cert-vbtn[aria-pressed="true"] {
  background: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-surface);
}
.page-certification .cert-vbtn .filter-btn__count {
  margin-left: var(--space-1);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  opacity: 0.7;
}

.page-certification .cert-vouchers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}
.page-certification .cert-voucher {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  max-width: var(--measure);
}
.page-certification .cert-voucher[hidden] {
  display: none;
}
.page-certification .cert-voucher__type {
  justify-self: start;
  display: inline-block;
  padding: 3px var(--space-2);
  background: var(--color-contrast-accent);
  color: var(--color-contrast-surface);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
}
.page-certification .cert-voucher__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}
.page-certification .cert-voucher__desc {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}
.page-certification .cert-voucher__when {
  margin: 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}
.page-certification .cert-voucher__k {
  display: inline-block;
  margin-right: var(--space-2);
  padding: 2px var(--space-1);
  border: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  font-weight: 700;
}

/* ---------- 收尾对接 ---------- */
.page-certification .cert-ask {
  display: grid;
  gap: var(--space-6);
}
.page-certification .cert-ask__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}
.page-certification .cert-ask__lede {
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}
.page-certification .cert-ask__list {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  display: grid;
  gap: var(--space-2);
  max-width: var(--measure);
}
.page-certification .cert-ask__item {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-ink);
}
.page-certification .cert-ask__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: var(--space-1);
  height: var(--space-1);
  background: var(--color-primary);
}
.page-certification .cert-ask__note {
  margin: 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
  max-width: var(--measure);
}
.page-certification .cert-ask__side {
  border-top: var(--border-thick) solid var(--color-primary);
  padding-top: var(--space-3);
}
.page-certification .cert-ask__row {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}
.page-certification .cert-ask__row--last {
  border-bottom: 0;
}
.page-certification .cert-ask__k {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}
.page-certification .cert-ask__v {
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-ink);
  word-break: break-word;
}
.page-certification .cert-ask__v.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.page-certification .cert-ask__exit {
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}
.page-certification .cert-ask__exit a {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
  padding-bottom: 1px;
}
.page-certification .cert-ask__exit a:hover,
.page-certification .cert-ask__exit a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---------- 焦点可见 ---------- */
.page-certification a:focus-visible,
.page-certification button:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}
.page-certification .cert-hero a:focus-visible {
  outline-color: var(--color-primary-ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-certification .cert-hero {
    padding-block: var(--space-8) var(--section-y);
  }
  .page-certification .cert-crumb {
    margin-bottom: var(--space-6);
  }
  .page-certification .cert-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-certification .cert-figure {
    padding-right: var(--space-3);
  }
  .page-certification .cert-figure + .cert-figure {
    padding-left: var(--space-3);
    border-left: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 42%, transparent);
  }
  .page-certification .cert-vouchers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-6);
  }
  .page-certification .cert-ask {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    column-gap: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .page-certification .cert-section {
    padding-block: var(--section-y-lg);
  }
  .page-certification .cert-head {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-certification .cert-item {
    grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
    column-gap: var(--space-6);
    padding-block: var(--space-6);
  }
  .page-certification .cert-item__head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  .page-certification .cert-voucher {
    padding-block: var(--space-6);
  }
}