.page-certification {
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

/* ============ 面包屑 ============ */
.page-certification .breadcrumbs {
  background: var(--color-surface-deep);
  border-bottom: 1px solid var(--color-line);
}

.page-certification .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-2) var(--space-3);
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-certification .breadcrumbs__list li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--color-ink-muted);
}

.page-certification .breadcrumbs__list a {
  color: var(--color-primary);
  text-decoration: none;
}

.page-certification .breadcrumbs__list a:hover {
  color: var(--color-accent);
}

/* ============ 首屏 ============ */
.page-certification .cert-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-6) 0 var(--section-y-lg);
}

.page-certification .cert-hero__media,
.page-certification .cert-hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-certification .cert-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.page-certification .cert-hero__scrim {
  background: var(--overlay-scrim);
}

.page-certification .cert-hero__deco {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.page-certification .cert-hero__deco--ring {
  top: 22%;
  right: 6%;
  width: 96px;
  height: 96px;
  border: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-pill);
  opacity: 0.6;
}

.page-certification .cert-hero__deco--slash {
  bottom: 12%;
  left: -18px;
  width: 68px;
  height: 68px;
  background: var(--color-contrast-accent);
  opacity: 0.22;
  transform: rotate(24deg);
  border-radius: var(--radius-sm);
}

.page-certification .cert-hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

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

.page-certification .cert-hero__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  max-width: 12ch;
}

.page-certification .cert-hero__lead {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

/* 放大编号 */
.page-certification .cert-hero__code {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1);
  width: fit-content;
  max-width: 100%;
  margin: var(--space-6) 0 0;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.03em;
  color: var(--color-contrast-ink);
  background: color-mix(in srgb, var(--color-contrast-surface) 78%, transparent);
  border: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-md);
  box-shadow: 8px 8px 0 var(--color-accent);
}

.page-certification .cert-code__seg {
  white-space: nowrap;
}

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

.page-certification .cert-hero__code-note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.72;
  max-width: var(--measure);
}

/* 四枚数字块 */
.page-certification .cert-hero__figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding: var(--space-4) 0 0;
  border-top: 1px solid var(--color-contrast-line);
  list-style: none;
}

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

.page-certification .cert-figure__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-certification .cert-figure__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.8;
}

/* ============ 主体布局 ============ */
.page-certification .cert-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--section-y-lg) var(--space-3) var(--space-8);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-certification .cert-toc {
  align-self: start;
  padding: var(--space-3);
  background: var(--color-surface-deep);
  border-radius: var(--radius-sm);
}

.page-certification .cert-toc__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.12em;
  color: var(--color-ink-soft);
}

.page-certification .cert-toc__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-certification .cert-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink);
  text-decoration: none;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
}

.page-certification .cert-toc__link:hover,
.page-certification .cert-toc__link:focus-visible {
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.page-certification .cert-toc__index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-certification .cert-toc__link:hover .cert-toc__index {
  color: var(--color-accent-ink);
}

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

/* ============ 通用区块 ============ */
.page-certification .cert-section {
  padding: var(--section-y) 0;
  border-top: 1px solid var(--color-line);
}

.page-certification .cert-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-certification .cert-section__head {
  margin-bottom: var(--space-4);
}

.page-certification .cert-section__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.18em;
}

.page-certification .cert-section__title {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-certification .cert-section__lede {
  max-width: var(--measure);
  margin: var(--space-2) 0 0;
  color: var(--color-ink-soft);
}

/* ============ 三段结构 ============ */
.page-certification .cert-segs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}

.page-certification .cert-seg {
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-certification .cert-seg[open] {
  background: var(--color-primary-soft);
  border-left-color: var(--color-accent);
}

.page-certification .cert-seg__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-3);
  cursor: pointer;
  list-style: none;
}

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

.page-certification .cert-seg__index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.1em;
}

.page-certification .cert-seg__digits {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-accent);
}

.page-certification .cert-seg__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin-left: auto;
}

.page-certification .cert-seg__mark {
  width: 14px;
  height: 14px;
  border-right: var(--border-thin) solid var(--color-ink-soft);
  border-bottom: var(--border-thin) solid var(--color-ink-soft);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.page-certification .cert-seg[open] .cert-seg__mark {
  transform: rotate(225deg);
}

.page-certification .cert-seg__body {
  padding: 0 var(--space-3) var(--space-3);
}

.page-certification .cert-seg__body p {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
}

.page-certification .cert-seg__note {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-left: var(--border-thin) solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-certification .caps {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--color-accent);
  margin-right: var(--space-1);
}

/* ============ 核验三步 ============ */
.page-certification .cert-steps__figure {
  margin: 0 0 var(--space-4);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-deep);
  border: 1px solid var(--color-line);
}

.page-certification .cert-steps__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-certification .cert-steps__figure figcaption {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  border-top: 1px solid var(--color-line);
}

.page-certification .cert-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: cert-step;
}

.page-certification .cert-step {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
  box-shadow: 6px 6px 0 var(--color-surface-deep);
}

.page-certification .cert-step:nth-child(2) {
  background: var(--color-primary-soft);
}

.page-certification .cert-step:nth-child(3) {
  background: var(--color-highlight);
}

.page-certification .cert-step__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.page-certification .cert-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary-ink);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-certification .cert-step__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-certification .cert-step__check {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  cursor: pointer;
}

.page-certification .cert-step__check input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.page-certification .cert-step__body {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
}

.page-certification .cert-step__crit {
  margin: 0;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border-left: var(--border-thin) solid var(--color-primary);
}

/* ============ 异常情形 ============ */
.page-certification .cert-issues {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.page-certification .cert-issue {
  border-bottom: 1px solid var(--color-line);
}

.page-certification .cert-issue__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  cursor: pointer;
  list-style: none;
}

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

.page-certification .cert-issue__idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
  min-width: 62px;
}

.page-certification .cert-issue__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-certification .cert-issue[open] .cert-issue__name {
  color: var(--color-primary);
}

.page-certification .cert-issue__body {
  padding: 0 0 var(--space-4);
}

.page-certification .cert-issue__body > p {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
}

.page-certification .cert-issue__order {
  margin: 0 0 var(--space-2);
  padding: 0;
  list-style: none;
  counter-reset: cert-issue;
}

.page-certification .cert-issue__order li {
  position: relative;
  padding: var(--space-1) 0 var(--space-1) var(--space-6);
  max-width: var(--measure);
  counter-increment: cert-issue;
}

.page-certification .cert-issue__order li::before {
  content: counter(cert-issue, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent);
}

.page-certification .cert-issue__prep {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
}

/* ============ 衔接区 ============ */
.page-certification .cert-bridge {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--section-y-lg) 0;
}

.page-certification .cert-bridge__media,
.page-certification .cert-bridge__scrim {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-certification .cert-bridge__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-certification .cert-bridge__scrim {
  background: var(--overlay-scrim);
}

.page-certification .cert-bridge__inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

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

.page-certification .cert-bridge__title {
  margin: var(--space-2) 0 0;
  max-width: 24ch;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-certification .cert-bridge__lede {
  max-width: var(--measure);
  margin: var(--space-2) 0 var(--space-6);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

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

.page-certification .cert-bridge__item {
  padding: var(--space-3);
  background: color-mix(in srgb, var(--color-surface) 94%, transparent);
  color: var(--color-ink);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-primary);
  box-shadow: 6px 6px 0 var(--color-contrast-accent);
  transition: transform 0.22s ease;
}

.page-certification .cert-bridge__item:nth-child(2) {
  border-color: var(--color-accent);
}

.page-certification .cert-bridge__item:nth-child(3) {
  border-color: var(--color-primary);
}

.page-certification .cert-bridge__item:hover {
  transform: translateY(-4px);
}

.page-certification .cert-bridge__item-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-certification .cert-bridge__item p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-certification .cert-bridge__link {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
  padding-bottom: 2px;
}

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

.page-certification .cert-bridge__footnote {
  margin: var(--space-6) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

/* ============ 出口区 ============ */
.page-certification .cert-exit {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: 0 0 var(--section-y-lg);
}

.page-certification .cert-exit__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.page-certification .cert-exit__panel {
  padding: var(--space-4);
  background: var(--color-surface);
  color: var(--color-ink);
  border: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: 10px 10px 0 var(--color-accent);
}

.page-certification .cert-exit__panel .eyebrow {
  color: var(--color-accent);
}

.page-certification .cert-exit__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  max-width: 26ch;
}

.page-certification .cert-exit__text {
  margin: var(--space-2) 0 var(--space-4);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-certification .cert-exit__list {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--color-line);
}

.page-certification .cert-exit__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-line);
}

.page-certification .cert-exit__label {
  min-width: 88px;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-certification .cert-exit__value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-ink);
  word-break: break-all;
}

.page-certification .cert-exit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ============ 响应式 ============ */
@media (max-width: 639px) {
  .page-certification .cert-hero__code {
    font-size: var(--text-lg);
    padding: var(--space-2);
    box-shadow: 5px 5px 0 var(--color-accent);
  }

  .page-certification .cert-hero__title {
    max-width: 100%;
  }

  .page-certification .cert-hero__deco--ring {
    width: 60px;
    height: 60px;
    top: 14%;
    right: 4%;
  }

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

  .page-certification .cert-seg__name {
    margin-left: 0;
    flex-basis: 100%;
  }

  .page-certification .cert-step__check {
    margin-left: 0;
  }

  .page-certification .cert-exit__panel {
    padding: var(--space-3);
    box-shadow: 6px 6px 0 var(--color-accent);
  }

  .page-certification .cert-bridge__item {
    box-shadow: 5px 5px 0 var(--color-contrast-accent);
  }
}

@media (min-width: 640px) {
  .page-certification .cert-hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-certification .cert-segs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-certification .cert-segs .cert-seg {
    border-left: var(--border-thick) solid var(--color-primary);
    border-top: var(--border-thick) solid var(--color-primary);
  }

  .page-certification .cert-segs .cert-seg[open] {
    border-top-color: var(--color-accent);
    border-left-color: var(--color-accent);
  }

  .page-certification .cert-seg__sum {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }

  .page-certification .cert-seg__name {
    margin-left: 0;
    font-size: var(--text-base);
  }

  .page-certification .cert-seg__mark {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
  }

  .page-certification .cert-seg {
    position: relative;
  }
}

@media (min-width: 960px) {
  .page-certification .cert-hero {
    padding-top: var(--space-8);
  }

  .page-certification .cert-hero__inner,
  .page-certification .cert-bridge__inner,
  .page-certification .cert-exit__inner,
  .page-certification .breadcrumbs__list {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .page-certification .cert-layout {
    grid-template-columns: minmax(0, 2fr) minmax(0, 5fr);
    gap: var(--space-8);
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .page-certification .cert-toc {
    position: sticky;
    top: var(--space-6);
  }

  .page-certification .cert-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-certification .cert-toc__link {
    display: flex;
    width: 100%;
    border-radius: var(--radius-sm);
  }

  .page-certification .cert-bridge__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-certification .cert-bridge__item:nth-child(2) {
    margin-top: var(--space-4);
  }

  .page-certification .cert-bridge__item:nth-child(3) {
    margin-top: var(--space-2);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-certification .cert-bridge__item {
    transition: none;
  }

  .page-certification .cert-bridge__item:hover {
    transform: none;
  }

  .page-certification .cert-seg__mark {
    transition: none;
  }
}