.page-services {
  --sv-rail-h: 20px;
  --sv-entry-pad: var(--space-4);
}

/* ---------- 首屏框景 ---------- */
.page-services .sv-hero {
  position: relative;
  padding: var(--space-6) 0 0;
  overflow: hidden;
}

.page-services .sv-hero__crumb {
  margin: 0 0 var(--space-4);
}

.page-services .sv-hero__crumb a {
  color: var(--color-contrast-ink);
  opacity: 0.76;
  text-decoration: none;
}

.page-services .sv-hero__crumb a:hover,
.page-services .sv-hero__crumb a:focus-visible {
  opacity: 1;
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-services .sv-hero__title {
  font-size: var(--text-display);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: 0.02em;
  color: var(--color-contrast-ink);
  margin: 0 0 var(--space-3);
}

.page-services .sv-hero__lead {
  max-width: var(--measure);
  color: var(--color-contrast-ink);
  opacity: 0.86;
  margin: 0 0 var(--space-6);
}

.page-services .sv-scale {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  border-top: var(--border-thick) solid var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-services .sv-scale__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: var(--space-2);
  border-left: var(--border-thick) solid var(--color-contrast-line);
}

.page-services .sv-scale__item:nth-child(2) {
  border-left-color: var(--color-primary);
}

.page-services .sv-scale__item:nth-child(3) {
  border-left-color: var(--color-contrast-accent);
}

.page-services .sv-scale__num {
  font-size: var(--text-figure);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-services .sv-scale__unit {
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-services .sv-scale__note {
  font-size: var(--text-xs);
  color: var(--color-contrast-ink);
  opacity: 0.62;
}

.page-services .sv-ticks {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  list-style: none;
  margin: 0;
  padding: var(--space-4) 0 var(--space-6);
}

.page-services .sv-tick {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px var(--space-2);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-services .sv-tick:hover,
.page-services .sv-tick:focus-visible {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
  outline: none;
}

.page-services .sv-tick:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-services .sv-tick__num {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-accent);
}

.page-services .sv-tick:hover .sv-tick__num,
.page-services .sv-tick:focus-visible .sv-tick__num {
  color: inherit;
}

.page-services .sv-hero__figure {
  position: relative;
  margin: 0;
  width: 100%;
}

.page-services .sv-hero__figure .figure__frame {
  aspect-ratio: 1200 / 420;
  overflow: hidden;
}

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

.page-services .sv-hero__figure .figure__tag {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  right: auto;
  z-index: 2;
  max-width: min(92%, 520px);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 4px var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.5;
}

/* ---------- 分组地层 ---------- */
.page-services .sv-group {
  padding: var(--section-y) 0;
  background: var(--color-surface);
}

.page-services .sv-group--alt {
  background: var(--color-surface-alt);
}

.page-services .sv-group--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-services .sv-group__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-primary);
  margin-bottom: var(--space-6);
}

.page-services .sv-group--deep .sv-group__head {
  border-top-color: var(--color-contrast-accent);
}

.page-services .sv-group__num {
  font-size: var(--text-2xl);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
}

.page-services .sv-group--deep .sv-group__num {
  color: var(--color-contrast-accent);
}

.page-services .sv-group__title {
  margin: 0;
  color: var(--color-ink);
}

.page-services .sv-group--deep .sv-group__title {
  color: var(--color-contrast-ink);
}

.page-services .sv-group__lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  color: var(--color-ink-soft);
}

.page-services .sv-group--deep .sv-group__lead {
  color: var(--color-contrast-ink);
  opacity: 0.8;
}

/* ---------- 条目目录 ---------- */
.page-services .sv-entries {
  display: grid;
  gap: 0;
}

.page-services .sv-entry {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--sv-entry-pad) 0 var(--sv-entry-pad) var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  transition: background-color 0.18s ease;
}

.page-services .sv-group--deep .sv-entry {
  border-top-color: var(--color-contrast-line);
}

.page-services .sv-entry:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .sv-group--deep .sv-entry:last-child {
  border-bottom-color: var(--color-contrast-line);
}

.page-services .sv-entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--sv-entry-pad);
  width: var(--border-thick);
  height: var(--sv-rail-h);
  background: var(--color-primary);
  transition: height 0.2s ease, top 0.2s ease, background-color 0.2s ease;
}

.page-services .sv-entry:nth-child(even)::before {
  background: var(--color-accent);
}

.page-services .sv-entry:hover,
.page-services .sv-entry:focus-within {
  background: color-mix(in srgb, var(--color-highlight) 44%, transparent);
}

.page-services .sv-group--deep .sv-entry:hover,
.page-services .sv-group--deep .sv-entry:focus-within {
  background: color-mix(in srgb, var(--color-contrast-accent) 16%, transparent);
}

.page-services .sv-entry:hover::before,
.page-services .sv-entry:focus-within::before {
  top: 0;
  height: 100%;
  background: var(--color-accent);
}

.page-services .sv-entry:nth-child(even):hover::before,
.page-services .sv-entry:nth-child(even):focus-within::before {
  background: var(--color-primary);
}

.page-services .sv-entry__index {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
}

.page-services .sv-entry__num {
  font-size: var(--text-lg);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  line-height: 1;
}

.page-services .sv-group--deep .sv-entry__num {
  color: var(--color-contrast-accent);
}

.page-services .sv-entry__tag {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
}

.page-services .sv-group--deep .sv-entry__tag {
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}

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

.page-services .sv-group--deep .sv-entry__title {
  color: var(--color-contrast-ink);
}

.page-services .sv-entry__desc {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-3);
}

.page-services .sv-group--deep .sv-entry__desc {
  color: var(--color-contrast-ink);
  opacity: 0.82;
}

.page-services .sv-entry__desc a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-services .sv-entry__desc a:hover,
.page-services .sv-entry__desc a:focus-visible {
  color: var(--color-primary);
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-services .sv-entry__fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin: 0;
  padding: var(--space-2) 0 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .sv-group--deep .sv-entry__fields {
  border-top-color: var(--color-contrast-line);
}

.page-services .sv-entry__fields > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-services .sv-entry__fields dt {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-services .sv-group--deep .sv-entry__fields dt {
  color: var(--color-contrast-ink);
  opacity: 0.6;
}

.page-services .sv-entry__fields dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink);
}

.page-services .sv-group--deep .sv-entry__fields dd {
  color: var(--color-contrast-ink);
}

/* ---------- 分组内图片 ---------- */
.page-services .sv-group__figure {
  position: relative;
  margin: var(--space-6) 0 0;
}

.page-services .sv-group__figure .figure__frame {
  overflow: hidden;
  border: var(--border-thick) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-services .sv-group--deep .sv-group__figure .figure__frame {
  border-color: var(--color-contrast-line);
}

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

.page-services .sv-group__figure .figure__tag {
  position: absolute;
  right: var(--space-2);
  top: var(--space-2);
  left: auto;
  z-index: 2;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-left: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 3px var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.5;
}

/* ---------- 口径与工具区块 ---------- */
.page-services .sv-block {
  padding: var(--section-y) 0;
  background: var(--color-surface);
}

.page-services .sv-block--alt {
  background: var(--color-surface-alt);
}

.page-services .sv-block--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-services .sv-block__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-primary);
  margin-bottom: var(--space-6);
}

.page-services .sv-block--deep .sv-block__head {
  border-top-color: var(--color-contrast-accent);
}

.page-services .sv-block__num {
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-services .sv-block--deep .sv-block__num {
  color: var(--color-contrast-accent);
}

.page-services .sv-block__title {
  margin: 0;
  color: var(--color-ink);
}

.page-services .sv-block--deep .sv-block__title {
  color: var(--color-contrast-ink);
}

.page-services .sv-block__lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  color: var(--color-ink-soft);
}

.page-services .sv-block--deep .sv-block__lead {
  color: var(--color-contrast-ink);
  opacity: 0.82;
}

.page-services .sv-kv {
  display: grid;
  border-top: var(--border-thick) solid var(--color-contrast-accent);
}

.page-services .sv-kv__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-services .sv-kv__key {
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-accent);
}

.page-services .sv-kv__val {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

/* ---------- 检索与导出 ---------- */
.page-services .sv-export__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-services .sv-export__list {
  display: grid;
  gap: var(--space-2);
}

.page-services .sv-export__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-3);
  row-gap: var(--space-1);
  padding: var(--space-3) 0 var(--space-3) var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  position: relative;
}

.page-services .sv-export__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--space-3);
  width: var(--border-thick);
  height: var(--sv-rail-h);
  background: var(--color-primary);
}

.page-services .sv-export__item:nth-child(2n)::before {
  background: var(--color-accent);
}

.page-services .sv-export__item:hover::before,
.page-services .sv-export__item:focus-within::before {
  height: calc(100% - var(--space-3));
}

.page-services .sv-export__item:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .sv-export__num {
  grid-row: 1 / span 2;
  font-size: var(--text-xl);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
}

.page-services .sv-export__title {
  font-size: var(--text-lg);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: 0;
}

.page-services .sv-export__text {
  grid-column: 2;
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-services .sv-export__text a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-services .sv-export__text a:hover,
.page-services .sv-export__text a:focus-visible {
  color: var(--color-primary);
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-services .sv-export__figure {
  position: relative;
  margin: 0;
}

.page-services .sv-export__figure .figure__frame {
  overflow: hidden;
  border: var(--border-thick) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-services .sv-export__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-services .sv-export__figure .figure__tag {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  right: auto;
  z-index: 2;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-left: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 3px var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.5;
}

/* ---------- 修订记录 ---------- */
.page-services .sv-timeline {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
  display: grid;
  gap: 0;
}

.page-services .sv-timeline__item {
  position: relative;
  padding: var(--space-3) 0 var(--space-3) var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .sv-timeline__item:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .sv-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--space-3);
  width: var(--border-thick);
  height: calc(100% - var(--space-3) * 2);
  min-height: var(--sv-rail-h);
  background: var(--color-primary-soft);
}

.page-services .sv-timeline__item:nth-child(2n)::before {
  background: var(--color-highlight);
}

.page-services .sv-timeline__stage {
  display: block;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  letter-spacing: 0.04em;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.page-services .sv-timeline__title {
  font-size: var(--text-lg);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-1);
}

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

.page-services .sv-revision__note {
  max-width: var(--measure);
}

.page-services .sv-revision__note p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-services .sv-revision__note a,
.page-services .sv-revision__contact a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-services .sv-revision__note a:hover,
.page-services .sv-revision__note a:focus-visible,
.page-services .sv-revision__contact a:hover,
.page-services .sv-revision__contact a:focus-visible {
  color: var(--color-primary);
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-services .sv-revision__contact {
  margin: var(--space-4) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-services .sv-entry__fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
  }
}

@media (min-width: 760px) {
  .page-services .sv-scale {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-services .sv-group__head,
  .page-services .sv-block__head {
    grid-template-columns: 96px minmax(0, 1fr);
    column-gap: var(--space-4);
    align-items: baseline;
  }

  .page-services .sv-group__num,
  .page-services .sv-block__num {
    grid-row: 1 / span 2;
  }

  .page-services .sv-kv__row {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    column-gap: var(--space-4);
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-services .sv-entry {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    column-gap: var(--space-4);
    align-items: start;
  }

  .page-services .sv-entry__body {
    min-width: 0;
  }

  .page-services .sv-export__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-services .sv-group__figure--narrow,
  .page-services .sv-export__figure {
    max-width: 720px;
  }
}

@media (min-width: 1100px) {
  .page-services .sv-hero {
    padding-top: var(--space-8);
  }

  .page-services .sv-hero__figure .figure__tag {
    left: var(--space-3);
    bottom: var(--space-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-services .sv-entry,
  .page-services .sv-entry::before,
  .page-services .sv-tick,
  .page-services .sv-export__item::before {
    transition: none;
  }
}