.page-process {
  --process-step-col: calc(var(--space-6) + var(--space-1));
  --process-dot: calc(var(--space-1) * 0.75);
  --process-hairline: color-mix(in srgb, var(--color-ink-muted) 30%, transparent);
}

/* ---------- 首屏 ---------- */

.page-process .process-hero {
  position: relative;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  overflow: hidden;
}

.page-process .process-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-process .process-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: 0.55;
}

.page-process .process-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-process .process-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: var(--section-y-lg) var(--section-y);
}

.page-process .process-breadcrumb {
  margin-bottom: var(--space-6);
}

.page-process .process-breadcrumb .breadcrumb__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-size: var(--text-sm);
}

.page-process .process-breadcrumb li + li::before {
  content: "/";
  margin-right: var(--space-1);
  color: color-mix(in srgb, var(--color-contrast-ink) 40%, transparent);
}

.page-process .process-breadcrumb a {
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
  text-decoration: none;
}

.page-process .process-breadcrumb a:hover,
.page-process .process-breadcrumb a:focus-visible {
  color: var(--color-contrast-accent);
}

.page-process .process-breadcrumb a[aria-current="page"] {
  color: var(--color-contrast-ink);
}

.page-process .process-hero__title {
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  font-weight: var(--weight-heading);
  margin: var(--space-2) 0 var(--space-3);
  max-width: 16ch;
  overflow-wrap: break-word;
}

.page-process .process-hero__lede {
  max-width: var(--measure);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-process .process-hero__lower {
  margin-top: var(--space-8);
  display: grid;
  gap: var(--space-6);
}

.page-process .process-flow {
  margin: 0;
  padding: var(--space-4) var(--space-3) var(--space-3);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent);
}

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

.page-process .process-flow__line {
  fill: none;
  stroke: url(#process-flow-grad);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-process .process-flow__nodes circle {
  fill: var(--color-contrast-surface);
  stroke: var(--color-contrast-accent);
  stroke-width: 3;
}

.page-process .process-flow__caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
}

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

.page-process .process-num {
  display: grid;
  gap: calc(var(--space-1) / 2);
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid color-mix(in srgb, var(--color-contrast-accent) 55%, transparent);
}

.page-process .process-num:nth-child(2) {
  margin-left: var(--space-4);
}

.page-process .process-num:nth-child(4) {
  margin-left: var(--space-2);
}

.page-process .process-num__value {
  font-size: var(--text-figure);
  line-height: 1;
  font-weight: var(--weight-heading);
  letter-spacing: -0.02em;
  color: var(--color-contrast-accent);
}

.page-process .process-num__label {
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

/* ---------- 阶段锚点条 ---------- */

.page-process .process-anchors {
  position: sticky;
  top: 0;
  z-index: 4;
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
  backdrop-filter: blur(10px);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-process .process-anchors__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-2);
}

.page-process .process-anchors__label {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-process .process-anchors__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-process .process-anchors__list::-webkit-scrollbar {
  display: none;
}

.page-process .process-anchors__link {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: calc(var(--space-1) * 0.75) var(--space-2);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.page-process .process-anchors__link::before {
  content: "";
  width: var(--process-dot);
  height: var(--process-dot);
  border-radius: var(--radius-pill);
  background: currentColor;
  opacity: 0.35;
  margin-right: var(--space-1);
  flex: none;
  transition: opacity 0.25s ease;
}

.page-process .process-anchors__link:hover,
.page-process .process-anchors__link:focus-visible {
  background: var(--color-surface-deep);
  color: var(--color-ink);
}

.page-process .process-anchors__link.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: var(--weight-heading);
}

.page-process .process-anchors__link.is-active::before {
  opacity: 1;
}

/* ---------- 阶段通用 ---------- */

.page-process .process-stream {
  padding-block: var(--section-y-lg);
}

.page-process .process-stage {
  width: 100%;
  margin-inline: auto;
}

.page-process .process-stage + .process-stage {
  margin-top: var(--section-y-lg);
}

.page-process .process-stage__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-process .process-stage__title {
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: var(--space-1) 0 var(--space-2);
}

.page-process .process-stage__lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-process .process-stage__meta {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  font-variant-numeric: tabular-nums;
}

.page-process .process-stage__head--scrimmed {
  position: relative;
  overflow: hidden;
  max-width: none;
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface-alt);
}

.page-process .process-stage__bgimg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.page-process .process-stage__head--scrimmed::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    var(--color-surface) 10%,
    color-mix(in srgb, var(--color-surface) 88%, transparent) 52%,
    color-mix(in srgb, var(--color-surface) 42%, transparent) 100%
  );
}

.page-process .process-stage__headbody {
  position: relative;
  z-index: 1;
  max-width: var(--measure);
}

/* ---------- 步骤列表 ---------- */

.page-process .process-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: var(--space-2);
}

.page-process .process-steps::before {
  content: "";
  position: absolute;
  inset-block: var(--space-2);
  left: calc(var(--process-step-col) / 2);
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--color-primary) 0%,
    color-mix(in srgb, var(--color-accent) 70%, transparent) 62%,
    color-mix(in srgb, var(--color-accent) 10%, transparent) 100%
  );
  opacity: 0.4;
}

.page-process .process-step {
  position: relative;
  display: grid;
  grid-template-columns: var(--process-step-col) minmax(0, 1fr);
  gap: var(--space-3);
  padding-block: var(--space-3);
}

.page-process .process-step__index {
  display: grid;
  place-items: center;
  width: var(--process-step-col);
  height: var(--process-step-col);
  margin: 0;
  border-radius: var(--radius-sm);
  background: linear-gradient(140deg, var(--color-primary-soft), var(--color-highlight));
  color: var(--color-primary);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
}

.page-process .process-step__body {
  min-width: 0;
}

.page-process .process-step__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 .process-step__desc {
  margin: 0 0 var(--space-2);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-process .process-step__note {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-process .process-tag {
  display: inline-block;
  margin-right: var(--space-1);
  padding: calc(var(--space-1) * 0.25) var(--space-2);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 48%, transparent);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}

.page-process .process-step__result {
  margin: 0;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-primary-soft) 62%, transparent);
  font-size: var(--text-sm);
  color: var(--color-ink);
  max-width: var(--measure);
}

.page-process .process-step__result-label {
  display: inline-block;
  margin-right: var(--space-1);
  color: var(--color-primary);
  font-weight: var(--weight-heading);
}

.page-process .process-more {
  margin-top: var(--space-2);
  padding: calc(var(--space-1) * 0.75) var(--space-3);
  border: var(--border-thin) dashed color-mix(in srgb, var(--color-ink-muted) 55%, transparent);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-ink-soft);
  font: inherit;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-process .process-more:hover,
.page-process .process-more:focus-visible {
  color: var(--color-primary);
  border-color: color-mix(in srgb, var(--color-primary) 50%, transparent);
}

.page-process .expand-panel {
  margin-top: var(--space-2);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-process .expand-panel[hidden] {
  display: none;
}

.page-process .expand-panel p {
  margin: 0 0 var(--space-1);
}

.page-process .expand-panel p:last-child {
  margin-bottom: 0;
}

.page-process .process-panel__key {
  display: inline-block;
  margin-right: var(--space-1);
  color: var(--color-ink);
  font-weight: var(--weight-heading);
}

/* ---------- 图片块补充 ---------- */

.page-process .process-figure {
  position: relative;
  margin: 0 0 var(--space-6);
  overflow: hidden;
  border-radius: var(--radius-lg);
  min-height: 220px;
}

.page-process .process-figure .media-block__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  min-height: 220px;
}

.page-process .process-figure .media-block__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-process .process-figure .media-block__body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-4) var(--space-4) var(--space-3);
}

.page-process .process-figure .media-block__caption {
  margin: 0;
  max-width: 46ch;
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

/* ---------- 例外处理深色区 ---------- */

.page-process .process-exceptions {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-lg);
  margin: 0 var(--space-2) var(--section-y-lg);
  padding-block: var(--section-y);
}

.page-process .process-exceptions__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-process .process-exceptions__title {
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  font-weight: var(--weight-heading);
  margin: var(--space-1) 0 var(--space-2);
  color: var(--color-contrast-ink);
}

.page-process .process-exceptions__lede {
  margin: 0;
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

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

.page-process .process-exception {
  padding: var(--space-4) var(--space-3);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-contrast-ink) 9%, transparent);
}

.page-process .process-exception__tag {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

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

.page-process .process-exception__text {
  margin: 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

/* ---------- 相邻入口 ---------- */

.page-process .process-next {
  padding-block: 0 var(--section-y-lg);
}

.page-process .process-next__inner {
  max-width: var(--measure);
}

.page-process .process-next__title {
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: var(--space-1) 0 var(--space-2);
}

.page-process .process-next__text {
  margin: 0 0 var(--space-4);
  color: var(--color-ink-soft);
}

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

.page-process .process-next__link {
  display: grid;
  gap: calc(var(--space-1) / 2);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  text-decoration: none;
  transition: background-color 0.25s ease, box-shadow 0.25s ease;
}

.page-process .process-next__link:hover,
.page-process .process-next__link:focus-visible {
  background: var(--color-primary-soft);
  box-shadow: var(--shadow-1);
}

.page-process .process-next__link-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-process .process-next__link-desc {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* ---------- 显现动效 ---------- */

.page-process .process-stage,
.page-process .process-exception,
.page-process .process-next__inner {
  scroll-margin-top: var(--space-8);
}

.page-process .reveal {
  transition: opacity 0.35s ease, transform 0.35s ease;
  opacity: 0;
  transform: translateY(16px);
}

.page-process .reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-process .process-hero__lower {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
    gap: var(--space-6);
  }

  .page-process .process-hero__figures {
    padding-top: var(--space-4);
  }

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

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

  .page-process .process-exceptions {
    margin-inline: var(--space-3);
  }
}

@media (min-width: 980px) {
  .page-process .process-stage--narrow {
    max-width: 72%;
    margin-left: 0;
    margin-right: auto;
  }

  .page-process .process-stage--mid {
    max-width: 88%;
    margin-left: auto;
    margin-right: 0;
  }

  .page-process .process-step {
    grid-template-columns: var(--process-step-col) minmax(0, 1fr);
    gap: var(--space-4);
  }

  .page-process .process-figure {
    min-height: 300px;
  }

  .page-process .process-figure .media-block__img {
    min-height: 300px;
  }

  .page-process .process-exceptions {
    margin-inline: var(--space-4);
  }
}

@media (max-width: 639px) {
  .page-process .process-hero__inner {
    padding-block: var(--section-y) var(--section-y);
  }

  .page-process .process-hero__title {
    max-width: none;
  }

  .page-process .process-step {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-2);
  }

  .page-process .process-steps::before {
    display: none;
  }

  .page-process .process-step__index {
    width: calc(var(--process-step-col) * 0.8);
    height: calc(var(--process-step-col) * 0.8);
    font-size: var(--text-base);
  }

  .page-process .process-anchors__inner {
    gap: var(--space-2);
  }

  .page-process .process-exceptions {
    margin-inline: var(--space-1);
    border-radius: var(--radius-md);
  }

  .page-process .process-stage__head--scrimmed {
    padding: var(--space-6) var(--space-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-process .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-process .process-anchors__link,
  .page-process .process-next__link,
  .page-process .process-more {
    transition: none;
  }
}
<<<END>>>