.page-process {
  display: block;
}

/* ---------- 首屏框景 ---------- */
.page-process .process-hero {
  padding-top: var(--space-4);
  padding-bottom: var(--space-6);
}

.page-process .process-hero__frame {
  position: relative;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-3);
  background: var(--color-surface);
}

.page-process .process-hero__frame::before,
.page-process .process-hero__frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 2px solid var(--color-primary);
  pointer-events: none;
}

.page-process .process-hero__frame::before {
  top: -2px;
  left: -2px;
  border-right: 0;
  border-bottom: 0;
}

.page-process .process-hero__frame::after {
  bottom: -2px;
  right: -2px;
  border-left: 0;
  border-top: 0;
}

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

.page-process .process-hero__lead .display-title {
  font-size: var(--text-display);
  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: 18ch;
}

.page-process .process-hero__lead .lede {
  max-width: var(--measure);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0;
}

.page-process .process-hero__panel {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.page-process .process-hero__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-process .process-hero__paths {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-process .process-hero__paths li {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-contrast-line);
}

.page-process .process-hero__key {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  color: var(--color-contrast-accent);
  min-width: 1.6em;
}

.page-process .process-hero__name {
  flex: 1 1 auto;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-contrast-ink);
}

.page-process .process-hero__count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.82;
}

.page-process .process-hero__figures {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 2px solid var(--color-contrast-line);
}

.page-process .process-hero__panel .stat {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.page-process .process-hero__panel .stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  font-size: var(--text-xl);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-process .process-hero__panel .stat__label {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

/* ---------- 章节索引条 ---------- */
.page-process .index-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  padding: var(--space-2) 0;
  margin-top: var(--space-4);
  border-top: 2px solid var(--color-ink);
  border-bottom: 1px dashed var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.page-process .index-bar__link {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

.page-process .index-bar__link:hover,
.page-process .index-bar__link:focus-visible,
.page-process .index-bar__link.is-current {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---------- 区块通用 ---------- */
.page-process .process-block {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.page-process .section-head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  border-left: var(--border-thick) solid var(--color-primary);
  padding-left: var(--space-3);
}

.page-process .section-index {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  font-size: var(--text-xl);
  line-height: 1;
  color: var(--color-primary);
}

.page-process .section-title {
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-1);
}

.page-process .section-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-process .process-block__media {
  margin: 0 0 var(--space-6);
}

/* ---------- 分叉判断 ---------- */
.page-process .process-routing__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-process .process-figure {
  margin: 0;
  padding: var(--space-3);
  border: 2px dashed var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-process .process-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-process .map-trunk,
.page-process .map-fork {
  stroke: var(--color-primary);
  stroke-width: 2;
  fill: none;
}

.page-process .map-branch,
.page-process .map-merge {
  stroke: var(--color-line);
  stroke-width: 1;
  stroke-dasharray: 4 4;
  fill: none;
}

.page-process .map-node {
  fill: var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-process .map-node--split {
  fill: var(--color-accent);
}

.page-process .map-node--end {
  fill: var(--color-surface);
  stroke: var(--color-primary);
  stroke-width: 2;
}

.page-process .process-map a:hover .map-node--link,
.page-process .process-map a:focus-visible .map-node--link {
  fill: var(--color-focus);
}

.page-process .process-map a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-process .map-label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  fill: var(--color-ink-soft);
}

.page-process .process-figure .media-frame__caption {
  margin-top: var(--space-2);
}

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

.page-process .process-routing__item {
  border: 2px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: var(--color-surface);
  position: relative;
}

.page-process .process-routing__item:hover,
.page-process .process-routing__item:focus-within {
  border-color: var(--color-primary);
}

.page-process .process-routing__key {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: var(--text-base);
  color: var(--color-primary-ink);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 2px 10px;
  margin-bottom: var(--space-2);
}

.page-process .process-routing__title {
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  margin: 0 0 var(--space-2);
  color: var(--color-ink);
}

.page-process .process-routing__text {
  margin: 0;
  max-width: var(--measure);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 步骤主干 ---------- */
.page-process .process-steps {
  --rail-offset: 30px;
  position: relative;
  padding-left: var(--rail-offset);
  margin: 0;
}

.page-process .process-steps::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 8px;
  width: 2px;
  background: var(--color-line);
}

.page-process .process-step {
  position: relative;
  padding-bottom: var(--space-6);
}

.page-process .process-step:last-child {
  padding-bottom: 0;
}

.page-process .process-step::before {
  content: "";
  position: absolute;
  top: 14px;
  left: calc(-1 * var(--rail-offset) - 5px);
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background 200ms ease;
}

.page-process .process-step:target::before {
  background: var(--color-focus);
}

.page-process .process-step:target .process-step__num {
  color: var(--color-focus);
}

.page-process .process-step__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.page-process .process-step__title {
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
}

.page-process .process-step__text {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-process .process-step .quote {
  margin: var(--space-2) 0;
  padding: var(--space-2) var(--space-3);
  background: var(--color-highlight);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  max-width: var(--measure);
  color: var(--color-ink);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-process .process-check {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: 1px dashed var(--color-line);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-process .process-check__box {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-process .process-check__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 4px;
  height: 9px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
}

/* ---------- 结果确认与折叠 ---------- */
.page-process .fold {
  border: 2px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  margin-bottom: var(--space-2);
}

.page-process .fold[open] {
  border-color: var(--color-primary);
}

.page-process .fold__summary {
  cursor: pointer;
  padding: var(--space-3);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink);
  list-style: none;
}

.page-process .fold__summary::-webkit-details-marker {
  display: none;
}

.page-process .fold__summary::before {
  content: "▸ ";
  font-family: var(--font-mono);
  color: var(--color-primary);
}

.page-process .fold[open] .fold__summary::before {
  content: "▾ ";
}

.page-process .fold__summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-process .fold__body {
  padding: 0 var(--space-3) var(--space-3);
}

.page-process .process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
  max-width: var(--measure);
}

.page-process .process-list li {
  position: relative;
  padding-left: var(--space-3);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-process .process-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--color-primary);
}

.page-process .process-note {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-line);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-ink-muted);
}

/* ---------- 全局链接与焦点（页内） ---------- */
.page-process a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-process a:focus-visible,
.page-process summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 1px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-process .process-hero__frame {
    padding: var(--space-6) var(--space-4);
  }

  .page-process .process-steps {
    --rail-offset: 56px;
  }

  .page-process .process-hero__figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-process .process-hero__panel .stat {
    display: grid;
    gap: var(--space-1);
  }

  .page-process .process-hero__panel .stat__value {
    font-size: var(--text-2xl);
  }

  .page-process .process-routing {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-process .process-routing__item:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-process .process-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: var(--space-8);
  }

  .page-process .process-routing__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--space-6);
  }

  .page-process .process-routing {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-process .process-routing__item:first-child {
    grid-column: auto;
  }

  .page-process .process-block__media img {
    max-height: 420px;
    object-fit: cover;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-process .process-step::before {
    transition: none;
  }
}