/* =========================================================
   page-certification — 核对与合规记录
   ========================================================= */

.page-certification {
  --cert-rail: var(--space-6);
  --cert-marker: 14px;
  display: block;
}

/* ---------- 首屏 ---------- */

.page-certification .cert-hero {
  padding-block: var(--space-6) var(--space-8);
}

.page-certification .cert-hero .crumb {
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.page-certification .cert-hero__title {
  margin: var(--space-3) 0 var(--space-4);
  max-width: 20ch;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-certification .cert-hero__lede {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-certification .cert-hero__grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

/* 深色数字带 */

.page-certification .cert-board {
  display: grid;
  gap: var(--space-4);
  align-content: center;
  padding: var(--space-4);
  background: var(--color-contrast-surface);
  border: var(--border-thin) solid var(--color-contrast-surface);
  border-radius: var(--radius-md);
  color: var(--color-contrast-ink);
}

.page-certification .cert-board__item {
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-contrast-line);
}

.page-certification .cert-board__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-certification .cert-board__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 600;
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-certification .cert-board__label {
  display: block;
  margin-top: var(--space-1);
  max-width: 34ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

/* 首屏图 */

.page-certification .cert-hero__fig {
  margin: 0;
  overflow: hidden;
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-certification .cert-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

/* 刻度条 */

.page-certification .cert-ruler {
  height: 68px;
  margin-top: var(--space-6);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background-image: linear-gradient(to right, var(--color-line) 0 1px, transparent 1px);
  background-size: 32px 22px;
  background-repeat: repeat-x;
  background-position: 0 0;
}

/* ---------- 时间线 ---------- */

.page-certification .cert-lead {
  margin-top: var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-certification .cert-timeline {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-certification .cert-phase__heading {
  margin: 0;
  font-size: var(--text-base);
  font-weight: var(--weight-body);
}

.page-certification .cert-phase__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-3);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-contrast-surface);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  color: var(--color-contrast-ink);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  text-align: left;
  cursor: pointer;
  transition: border-color 120ms ease;
}

.page-certification .cert-phase__head:hover {
  border-color: var(--color-contrast-accent);
}

.page-certification .cert-phase__head:focus-visible {
  outline: 3px solid var(--color-contrast-accent);
  outline-offset: 2px;
}

.page-certification .cert-phase__tag {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
  border: 2px solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  padding: 0 var(--space-1);
}

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

.page-certification .cert-phase__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-contrast-ink);
}

.page-certification .disclosure__mark {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border: 2px solid currentColor;
  border-radius: var(--radius-sm);
}

.page-certification .disclosure__mark::before,
.page-certification .disclosure__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
}

.page-certification .disclosure__mark::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-certification .disclosure__mark::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
  transition: transform 120ms ease;
}

.page-certification .cert-phase__head[aria-expanded="true"] .disclosure__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-certification .disclosure__panel {
  padding-top: var(--space-4);
}

.page-certification .disclosure__panel[hidden] {
  display: none;
}

/* ---------- 节点 ---------- */

.page-certification .cert-nodes {
  position: relative;
  margin: 0;
  padding: 0 0 0 var(--cert-rail);
  list-style: none;
}

.page-certification .cert-nodes::before {
  content: "";
  position: absolute;
  left: var(--space-2);
  top: var(--space-2);
  bottom: var(--space-2);
  width: 2px;
  background: var(--color-line);
}

.page-certification .cert-node {
  position: relative;
  margin-bottom: var(--space-3);
}

.page-certification .cert-node:last-child {
  margin-bottom: 0;
}

.page-certification .cert-node::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--cert-rail) + 10px);
  top: var(--space-3);
  width: var(--cert-marker);
  height: var(--cert-marker);
  box-sizing: border-box;
  border: 2px solid var(--color-accent);
  border-radius: 0;
  background: var(--color-surface);
}

.page-certification .cert-node--verified::before {
  background: var(--color-accent);
}

.page-certification .cert-node--review::before {
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.page-certification .cert-node--pending::before {
  border-color: var(--color-ink-soft);
  background: var(--color-surface);
}

.page-certification .cert-node__card {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-certification .cert-node__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-2);
  margin-bottom: var(--space-2);
}

.page-certification .cert-node__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-certification .cert-node__ver {
  padding: 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-certification .cert-state {
  display: inline-flex;
  align-items: center;
  margin-left: auto;
  padding: 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.9;
  border: 2px solid currentColor;
  border-radius: var(--radius-sm);
}

.page-certification .cert-state--done {
  color: var(--color-primary);
}

.page-certification .cert-state--review {
  color: var(--color-accent);
}

.page-certification .cert-state--todo {
  color: var(--color-ink-soft);
}

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

.page-certification .cert-fields {
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.page-certification .cert-field {
  display: grid;
  gap: var(--space-1);
}

.page-certification .cert-field dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

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

/* ---------- 阶段小结 ---------- */

.page-certification .cert-summary {
  margin: 0;
  padding: var(--space-3) var(--space-4);
  max-width: var(--measure);
  background: var(--color-highlight);
  border-left: 6px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-certification .cert-interlude {
  display: grid;
  gap: var(--space-4);
}

.page-certification .cert-summary-fig {
  margin: 0;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-certification .cert-summary-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-certification .cert-summary-fig figcaption {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-line);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 页内指引 ---------- */

.page-certification .cert-note {
  margin-top: var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-certification .cert-note a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-certification .cert-note a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 核对机制 ---------- */

.page-certification .cert-mech__fig {
  margin: 0 0 var(--space-6);
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-certification .cert-mech__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-certification .cert-mech__body {
  display: grid;
  gap: var(--space-4);
}

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

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

.page-certification .cert-state-card {
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-certification .cert-state-card__name {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-certification .cert-state-card__desc {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-certification .cert-dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  box-sizing: border-box;
  border: 2px solid currentColor;
}

.page-certification .cert-dot--done {
  color: var(--color-accent);
  background: var(--color-accent);
}

.page-certification .cert-dot--review {
  color: var(--color-primary);
}

.page-certification .cert-dot--todo {
  color: var(--color-ink-soft);
}

/* ---------- 备案与声明 ---------- */

.page-certification .cert-legal__text {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-certification .cert-legal__text a {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-certification .cert-legal__text a:focus-visible {
  outline: 3px solid var(--color-contrast-accent);
  outline-offset: 2px;
}

.page-certification .cert-legal__icp {
  display: inline-block;
  margin: var(--space-3) 0 0;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-contrast-accent);
  border: 2px solid var(--color-contrast-line);
  border-radius: var(--radius-md);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-certification .cert-field {
    grid-template-columns: 92px 1fr;
    gap: var(--space-3);
  }

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

  .page-certification .cert-mech__fig img {
    aspect-ratio: 12 / 5;
  }
}

@media (min-width: 900px) {
  .page-certification .cert-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: stretch;
  }

  .page-certification .cert-board__item:nth-child(2) {
    margin-left: var(--space-6);
  }

  .page-certification .cert-board__item:nth-child(3) {
    margin-left: var(--space-3);
  }

  .page-certification .cert-interlude {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-certification .cert-phase__head,
  .page-certification .disclosure__mark::after {
    transition-duration: 0ms;
  }
}