.page-services {
  --services-index: 72px;
  --services-rail: 4px;
  --services-gap: var(--space-3);
}

/* ---------- Hero ---------- */
.page-services .services-hero {
  padding-top: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .services-hero__inner {
  display: grid;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
}

.page-services .services-hero__title {
  margin-top: var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-services .services-hero__lead-text {
  margin-top: var(--space-4);
  color: var(--color-ink-soft);
}

.page-services .services-hero__figures {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.page-services .services-figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .services-figure .figure-num {
  color: var(--color-ink);
}

.page-services .services-figure__label {
  font-size: var(--text-base);
  color: var(--color-ink);
}

.page-services .services-figure__hint {
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--color-ink-muted);
}

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

.page-services .services-orbit__note {
  margin-bottom: var(--space-3);
}

.page-services .services-orbit__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-services .services-orbit__item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: baseline;
  gap: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .services-orbit__no {
  padding: var(--space-3) 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  text-decoration: none;
}

.page-services .services-orbit__link {
  display: block;
  padding: var(--space-3) 0;
  font-size: var(--text-base);
  color: var(--color-ink);
  text-decoration: none;
  transition: color 150ms ease, background-color 150ms ease;
}

.page-services .services-orbit__link:hover,
.page-services .services-orbit__link:focus-visible {
  color: var(--color-accent);
}

.page-services .services-orbit__link:focus-visible,
.page-services .services-orbit__no:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

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

.page-services .services-hero__media .media__frame {
  width: 100%;
}

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

.page-services .services-hero__media .media__caption {
  padding: var(--space-2) var(--space-3) var(--space-4);
}

/* ---------- 分组区 ---------- */
.page-services .services-groups__media {
  margin: 0 0 var(--space-6);
}

.page-services .services-groups__media img,
.page-services .services-scenes__media img,
.page-services .services-limits__media img,
.page-services .services-next__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-services .services-tree {
  display: block;
  width: 100%;
  height: auto;
  margin-top: var(--space-6);
  color: var(--color-line);
}

.page-services .services-tree__caption {
  margin-top: var(--space-2);
  margin-bottom: var(--space-8);
}

.page-services .services-groups__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-services .services-group {
  position: relative;
  padding: var(--space-4) var(--space-2) var(--space-4) var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-services .services-group::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-line);
  transition: width 150ms ease, background-color 150ms ease;
}

.page-services .services-group:target::before,
.page-services .services-group:first-child::before {
  width: var(--services-rail);
  background: var(--color-accent);
}

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

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

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

.page-services .services-group__name {
  margin: 0;
  flex: 1 1 auto;
}

.page-services .services-group__def {
  max-width: var(--measure);
  margin-top: var(--space-3);
  color: var(--color-ink);
}

.page-services .services-group__need {
  max-width: var(--measure);
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

/* ---------- 条目索引 ---------- */
.page-services .services-catalog__intro {
  margin-bottom: var(--space-6);
  color: var(--color-ink-soft);
}

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

.page-services .services-row {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .services-row__link {
  position: relative;
  display: grid;
  grid-template-columns: var(--services-index) minmax(0, 1fr);
  gap: var(--space-2) var(--services-gap);
  padding: var(--space-4) var(--space-2) var(--space-4) var(--space-4);
  text-decoration: none;
  color: inherit;
  transition: background-color 160ms ease;
}

.page-services .services-row__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-line);
  transition: width 160ms ease, background-color 160ms ease;
}

.page-services .services-row__link:hover,
.page-services .services-row__link:focus-visible {
  background: var(--color-primary-soft);
}

.page-services .services-row__link:hover::before,
.page-services .services-row__link:focus-visible::before {
  width: var(--services-rail);
  background: var(--color-accent);
}

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

.page-services .services-row__no {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  transition: font-size 160ms ease, color 160ms ease;
}

.page-services .services-row__link:hover .services-row__no,
.page-services .services-row__link:focus-visible .services-row__no {
  font-size: var(--text-base);
  color: var(--color-accent);
}

.page-services .services-row__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: var(--measure);
}

.page-services .services-row__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-services .services-row__note {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-services .services-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.page-services .services-row__tip {
  max-width: var(--measure);
  max-height: 0;
  margin: 0;
  padding: 0 var(--space-2) 0 var(--space-4);
  overflow: hidden;
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
  opacity: 0;
  transition: max-height 160ms ease, opacity 160ms ease, padding-bottom 160ms ease;
}

.page-services .services-row:hover .services-row__tip,
.page-services .services-row:focus-within .services-row__tip {
  max-height: 6rem;
  padding-bottom: var(--space-3);
  opacity: 1;
}

/* ---------- 能力边界 ---------- */
.page-services .services-limits__block {
  padding: var(--space-6) var(--space-4) var(--space-8);
}

.page-services .services-limits__head .section-head__title,
.page-services .services-limits__head .title-l {
  color: var(--color-contrast-ink);
}

.page-services .services-limits__head .section-head__note {
  color: var(--color-contrast-ink);
  opacity: 0.75;
}

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

.page-services .services-limits__media .media__caption {
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

.page-services .services-limits__list .collapse {
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-services .services-limits__list .collapse:last-child {
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-services .services-limits__list .collapse__trigger {
  display: block;
  width: 100%;
  padding: var(--space-4) 0;
  border: 0;
  background: transparent;
  text-align: left;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  cursor: pointer;
  transition: color 150ms ease;
}

.page-services .services-limits__list .collapse__trigger:hover,
.page-services .services-limits__list .collapse__trigger:focus-visible {
  color: var(--color-contrast-accent);
}

.page-services .services-limits__list .collapse__trigger:focus-visible {
  outline: 2px solid var(--color-contrast-accent);
  outline-offset: 2px;
}

.page-services .services-limits__list .collapse__trigger[aria-expanded="true"]::before {
  content: "—";
  margin-right: var(--space-2);
  color: var(--color-contrast-accent);
}

.page-services .services-limits__list .collapse__trigger[aria-expanded="false"]::before {
  content: "+";
  margin-right: var(--space-2);
  color: var(--color-contrast-line);
}

.page-services .services-limits__list .collapse__panel {
  max-width: var(--measure);
  padding-bottom: var(--space-4);
  color: var(--color-contrast-ink);
}

.page-services .services-limits__list .collapse__trigger[aria-expanded="false"] + .collapse__panel {
  display: none;
}

.page-services .services-limits__note {
  max-width: var(--measure);
  margin-top: var(--space-6);
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

/* ---------- 场景查找 ---------- */
.page-services .services-scenes__media {
  margin: 0 0 var(--space-6);
  max-width: 720px;
}

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

.page-services .services-scene {
  position: relative;
  padding: var(--space-4) var(--space-2) var(--space-4) var(--space-4);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .services-scene::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-line);
  transition: width 150ms ease, background-color 150ms ease;
}

.page-services .services-scene:hover::before,
.page-services .services-scene:focus-within::before {
  width: var(--services-rail);
  background: var(--color-accent);
}

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

.page-services .services-scene__name {
  margin: var(--space-1) 0 0;
}

.page-services .services-scene__body {
  max-width: var(--measure);
  margin-top: var(--space-3);
  color: var(--color-ink);
}

.page-services .services-scene__body .link-rail {
  color: var(--color-accent);
}

.page-services .services-scene__steps {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 相邻入口 ---------- */
.page-services .services-next__media {
  margin: 0 0 var(--space-6);
}

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

.page-services .services-next__item {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-services .services-next__link {
  display: block;
  padding: var(--space-4) var(--space-2);
  text-decoration: none;
  color: inherit;
  transition: background-color 160ms ease, color 160ms ease;
}

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

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

.page-services .services-next__name {
  display: block;
  margin: 0;
  color: var(--color-ink);
  transition: color 160ms ease;
}

.page-services .services-next__link:hover .services-next__name,
.page-services .services-next__link:focus-visible .services-next__name {
  color: var(--color-accent);
}

.page-services .services-next__desc {
  display: block;
  max-width: var(--measure);
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

/* ---------- 中等宽度 ---------- */
@media (min-width: 720px) {
  .page-services .services-hero__figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-services .services-tree {
    margin-top: var(--space-8);
  }

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

/* ---------- 宽屏 ---------- */
@media (min-width: 900px) {
  .page-services .services-hero {
    padding-top: var(--space-8);
  }

  .page-services .services-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--space-8) var(--space-6);
  }

  .page-services .services-hero__figures {
    margin-top: var(--space-8);
  }

  .page-services .services-orbit {
    padding-top: var(--space-6);
  }

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

  .page-services .services-row__link {
    padding: var(--space-4) var(--space-6) var(--space-4) var(--space-4);
  }

  .page-services .services-row__tip {
    padding-left: var(--space-4);
  }

  .page-services .services-scenes__media {
    max-width: 620px;
  }

  .page-services .services-next__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-6);
    border-top: 0;
  }

  .page-services .services-next__item {
    border-top: var(--border-thin) solid var(--color-line);
  }

  .page-services .services-next__link {
    height: 100%;
    padding: var(--space-4) var(--space-2) var(--space-6);
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-services .services-row__link,
  .page-services .services-row__link::before,
  .page-services .services-row__no,
  .page-services .services-row__tip,
  .page-services .services-group::before,
  .page-services .services-scene::before,
  .page-services .services-orbit__link,
  .page-services .services-next__link,
  .page-services .services-next__name,
  .page-services .services-limits__list .collapse__trigger {
    transition: none;
  }

  .page-services .services-row__tip {
    max-height: none;
  }
}
<<<END>>>