.page-services .steps__sr-title {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 首屏 ---------- */
.page-services .hero {
  background: var(--color-surface);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-services .hero__main {
  padding: var(--space-6) 0 var(--space-3);
}

.page-services .hero__title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.92;
  letter-spacing: -0.015em;
  color: var(--color-ink);
}

.page-services .hero__title::after {
  content: "";
  display: block;
  width: 88px;
  height: 6px;
  margin-top: var(--space-3);
  background: var(--color-primary);
}

.page-services .hero__lede {
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-services .hero__meta {
  margin: 0;
  color: var(--color-ink-muted);
}

.page-services .hero__aside {
  display: grid;
  gap: var(--space-4);
  align-content: start;
  padding: var(--space-6) var(--space-4);
  background: var(--color-contrast-surface);
}

.page-services .hero__aside-label {
  margin: 0;
  color: var(--color-contrast-accent);
}

.page-services .hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-services .hero-stat {
  display: block;
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-services .hero-stat__num {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-contrast-accent);
}

.page-services .hero-stat__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-services .hero__figure {
  margin: 0;
}

.page-services .hero__figure .figure__frame {
  border: var(--border-thin) solid var(--color-contrast-line);
  background: var(--color-contrast-surface);
}

.page-services .hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-services .hero__figure .figure__caption {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

@media (min-width: 1000px) {
  .page-services .hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 0;
    align-items: stretch;
  }

  .page-services .hero__main {
    padding: var(--space-8) var(--gutter) var(--space-8) 0;
  }

  .page-services .hero__aside {
    padding: var(--space-8) var(--space-6);
  }
}

/* ---------- 九步主体 ---------- */
.page-services .steps {
  background: var(--color-surface);
  padding: var(--section-y-lg) 0 0;
}

.page-services .steps__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-services .rail {
  padding: var(--space-3);
  background: var(--color-contrast-surface);
}

.page-services .rail__label {
  margin: 0 0 var(--space-2);
  color: var(--color-contrast-accent);
}

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

.page-services .rail__item {
  flex: 0 0 auto;
}

.page-services .rail__link {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-bottom: 2px solid transparent;
  color: var(--color-contrast-ink);
  text-decoration: none;
  white-space: nowrap;
}

.page-services .rail__link:hover,
.page-services .rail__link:focus-visible {
  border-bottom-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 20%, transparent);
}

.page-services .rail__link.is-current {
  border-bottom-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 26%, transparent);
}

.page-services .rail__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-contrast-accent);
}

.page-services .rail__text {
  font-size: var(--text-sm);
}

@media (min-width: 1000px) {
  .page-services .steps__layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 0;
    align-items: start;
  }

  .page-services .rail {
    position: sticky;
    top: 0;
    align-self: start;
    padding: var(--space-6) var(--space-3) var(--space-6) var(--space-4);
  }

  .page-services .rail__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-services .rail__item {
    display: block;
  }

  .page-services .rail__link {
    display: flex;
    padding: var(--space-2) var(--space-2) var(--space-2) var(--space-3);
    border-bottom: var(--border-thin) solid var(--color-contrast-line);
    border-left: 2px solid transparent;
    white-space: normal;
  }

  .page-services .rail__link:hover,
  .page-services .rail__link:focus-visible,
  .page-services .rail__link.is-current {
    border-bottom-color: var(--color-contrast-line);
    border-left-color: var(--color-primary);
  }
}

.page-services .steps__body {
  min-width: 0;
}

.page-services .step-group {
  padding-bottom: var(--section-y);
}

.page-services .step-group + .step-group {
  padding-top: var(--section-y);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .group-head {
  margin-bottom: var(--space-4);
}

.page-services .group-head__index {
  margin: 0 0 var(--space-1);
  color: var(--color-primary);
}

.page-services .group-head__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-services .group-head__lede {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-services .group-figure {
  margin: 0 0 var(--space-4);
}

.page-services .group-figure .figure__frame {
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
}

.page-services .group-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-services .group-figure .figure__caption {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.page-services .step {
  padding: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .step__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-services .step__num {
  flex: 0 0 auto;
  padding: 2px 8px;
  border: var(--border-thin) solid var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.page-services .step__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-services .step__fields {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.page-services .step__field {
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-line);
}

.page-services .step__field--note {
  padding: var(--space-2);
  border-left-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-services .step__field--check {
  padding: var(--space-2);
  border-left-color: var(--color-accent);
  background: var(--color-highlight);
}

.page-services .step__field dt {
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

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

.page-services .copy-btn {
  display: inline-block;
  margin-left: var(--space-1);
  padding: 2px 8px;
  border: var(--border-thin) solid var(--color-accent);
  background: transparent;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-accent);
  cursor: pointer;
}

.page-services .copy-btn:hover {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-services .copy-btn[data-copied="true"] {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

@media (min-width: 820px) {
  .page-services .step__fields {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }

  .page-services .step__field--op {
    grid-column: 1 / -1;
  }
}

.page-services .cat-list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .cat-list li {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-1) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-services .cat-list__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.page-services .cat-list__count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

@media (min-width: 900px) {
  .page-services .cat-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: var(--gutter);
  }

  .page-services .cat-list li {
    grid-template-columns: 48px 1fr auto;
  }
}

/* ---------- 变更标记与复核 ---------- */
.page-services .changelog {
  padding: var(--section-y) 0;
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .changelog__head {
  margin-bottom: var(--space-6);
}

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

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

.page-services .changelog__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-services .changelog__main {
  min-width: 0;
}

.page-services .mark-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  font-size: var(--text-sm);
}

.page-services .mark-table caption {
  padding-bottom: var(--space-2);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-services .mark-table th,
.page-services .mark-table td {
  padding: var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  text-align: left;
  vertical-align: top;
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-services .mark-table th {
  background: var(--color-surface-deep);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  font-weight: var(--weight-body);
  color: var(--color-ink-soft);
}

.page-services .mark {
  display: inline-block;
  padding: 1px 8px;
  border-left: 3px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-services .mark--none {
  border-left-color: var(--color-ink-muted);
  color: var(--color-ink-muted);
}

.page-services .mark--new {
  border-left-color: var(--color-accent);
  color: var(--color-accent);
}

.page-services .mark--edit {
  border-left-color: var(--color-primary);
  color: var(--color-primary);
}

.page-services .mark--archive {
  border-left-color: var(--color-ink-soft);
  color: var(--color-ink-soft);
}

.page-services .review-list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
}

.page-services .review-list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .review-list__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.page-services .review-list__title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-services .review-list__text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-services .changelog__figure {
  margin: 0;
}

.page-services .changelog__figure .figure__frame {
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
}

.page-services .changelog__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-services .changelog__figure .figure__caption {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

@media (min-width: 1000px) {
  .page-services .changelog__body {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: var(--gutter);
    align-items: start;
  }
}

/* ---------- 栏目分流 ---------- */
.page-services .routes {
  padding: var(--section-y) 0;
  background: var(--color-highlight);
}

.page-services .routes__figure {
  margin: 0 0 var(--space-6);
}

.page-services .routes__figure .figure__frame {
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
}

.page-services .routes__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-services .routes__figure .figure__caption {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-services .routes__head {
  margin-bottom: var(--space-4);
}

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

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

.page-services .routes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--border-thin) solid var(--color-ink);
}

.page-services .route-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num text";
  column-gap: var(--space-2);
  row-gap: var(--space-1);
  padding: var(--space-3) var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-line);
  text-decoration: none;
  color: var(--color-ink);
}

.page-services .route-card:hover,
.page-services .route-card:focus-visible {
  background: var(--color-surface);
}

.page-services .route-card__num {
  grid-area: num;
  color: var(--color-primary);
}

.page-services .route-card__title {
  grid-area: title;
  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-services .route-card__text {
  grid-area: text;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 760px) {
  .page-services .routes__grid {
    grid-template-columns: 1fr 1fr;
    column-gap: var(--gutter);
  }
}

@media (min-width: 1100px) {
  .page-services .routes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 999px) {
  .page-services .rail {
    position: static;
  }
}