.page-strength {
  --st-dark-soft: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
  --st-dark-faint: color-mix(in srgb, var(--color-contrast-ink) 52%, transparent);
  --st-tint: color-mix(in srgb, var(--color-surface-deep) 55%, transparent);
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  overflow-x: hidden;
}

.page-strength .container {
  padding-inline: var(--space-3);
}

.page-strength h1,
.page-strength h2,
.page-strength h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-strength p {
  margin: 0;
}

.page-strength img {
  max-width: 100%;
  height: auto;
}

.page-strength a:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: var(--space-1);
}

/* ---------- 右侧滚动读出位 ---------- */
.page-strength .st-readout {
  display: none;
}

/* ---------- 首屏 ---------- */
.page-strength .st-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-strength .st-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-strength .st-hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--overlay-scrim);
}

.page-strength .st-hero__inner {
  position: relative;
  z-index: 2;
  padding-block: var(--space-8) var(--section-y);
}

.page-strength .st-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--st-dark-soft);
}

.page-strength .st-crumb a {
  color: var(--color-contrast-ink);
  text-decoration: none;
}

.page-strength .st-crumb a:hover {
  color: var(--color-contrast-accent);
}

.page-strength .st-hero__eyebrow {
  margin-top: var(--space-6);
}

.page-strength .st-hero__title {
  margin-top: var(--space-3);
  max-width: 20ch;
  font-size: var(--text-display);
  line-height: 0.95;
  color: var(--color-contrast-ink);
}

.page-strength .st-hero__lede {
  margin-top: var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--st-dark-soft);
}

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

.page-strength .st-fig__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 0.95;
  color: var(--color-contrast-accent);
}

.page-strength .st-fig__unit {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-contrast-ink);
}

.page-strength .st-fig__note {
  margin-top: var(--space-1);
  max-width: 34ch;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--st-dark-faint);
}

.page-strength .st-line-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-8) 0 0;
  padding: 0;
  list-style: none;
}

.page-strength .st-chip {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-contrast-ink) 12%, transparent);
  color: var(--color-contrast-ink);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.page-strength .st-chip__count {
  font-family: var(--font-mono);
  color: var(--color-contrast-accent);
}

.page-strength .st-chip:hover {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-strength .st-hero__vmark {
  display: none;
  position: absolute;
  z-index: 2;
  top: var(--space-8);
  right: var(--space-3);
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.28em;
  color: var(--st-dark-faint);
}

/* ---------- 能力线通用 ---------- */
.page-strength .st-line {
  padding-block: var(--section-y);
}

.page-strength .st-line__head,
.page-strength .st-metrics__head {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  margin-bottom: var(--space-8);
}

.page-strength .st-line__mark {
  writing-mode: vertical-rl;
  text-orientation: upright;
  flex: none;
  padding-top: var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.3em;
  color: var(--color-accent);
}

.page-strength .st-line__mark--dark {
  color: var(--color-contrast-accent);
}

.page-strength .st-line__head-body {
  min-width: 0;
}

.page-strength .st-line__head h2,
.page-strength .st-metrics__head h2 {
  font-size: var(--text-3xl);
  max-width: 24ch;
}

.page-strength .st-line__lede {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-strength .st-line__lede--dark {
  color: var(--st-dark-soft);
}

/* ---------- 数据线窄条 ---------- */
.page-strength .st-band {
  position: relative;
  overflow: hidden;
  background-color: var(--color-contrast-surface);
}

.page-strength .st-band__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-strength .st-band__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-strength .st-band__body {
  position: relative;
  z-index: 2;
  padding-block: var(--space-8);
}

.page-strength .st-band__line {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-contrast-ink);
}

.page-strength .st-band__line .mono {
  color: var(--color-contrast-accent);
}

/* ---------- 能力条目 ---------- */
.page-strength .st-caps {
  display: grid;
  gap: var(--space-8);
}

.page-strength .st-cap {
  display: grid;
  gap: var(--space-3);
}

.page-strength .st-cap__name {
  font-size: var(--text-xl);
  color: var(--color-ink);
}

.page-strength .st-cap__field {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.page-strength .st-cap__field p {
  color: var(--color-ink);
}

.page-strength .st-cap__key {
  flex: none;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  transition: color 0.24s ease;
}

.page-strength .st-cap__key--edge {
  color: var(--color-ink-muted);
}

.page-strength .st-cap:hover .st-cap__key {
  color: var(--color-accent);
}

.page-strength .st-cap__edge {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--st-tint);
}

.page-strength .st-cap__edge p {
  display: inline-block;
  vertical-align: top;
  max-width: 32ch;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-strength .st-cap__call {
  margin-top: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: 1.45;
  color: var(--color-ink);
}

.page-strength .st-cap__call::before {
  content: "";
  display: inline-block;
  width: var(--space-3);
  height: var(--border-thick);
  margin-right: var(--space-2);
  background: var(--color-accent);
  vertical-align: middle;
}

.page-strength .st-inline-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: var(--space-1);
}

.page-strength .st-inline-link:hover {
  color: var(--color-accent);
}

/* ---------- 内容线 ---------- */
.page-strength .st-line--content {
  background-color: var(--color-surface);
}

.page-strength .st-line__grid {
  display: grid;
  gap: var(--space-8);
}

.page-strength .st-line__aside-img {
  display: block;
  width: 100%;
  border-radius: var(--radius-sm);
}

.page-strength .st-line__aside-note {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* ---------- 协作线 ---------- */
.page-strength .st-line--collab {
  background-color: var(--color-surface-alt);
}

.page-strength .st-collab__head {
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-8);
  padding: var(--space-8) var(--space-3);
  border-radius: var(--radius-sm);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-strength .st-collab__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-strength .st-collab__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-strength .st-collab__head-body {
  position: relative;
  z-index: 2;
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.page-strength .st-collab__head h2 {
  font-size: var(--text-3xl);
  max-width: 24ch;
  color: var(--color-contrast-ink);
}

/* ---------- 边界 ---------- */
.page-strength .st-bound {
  padding-block: 0 var(--section-y);
  background-color: var(--color-surface);
}

.page-strength .st-bound__band {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 40vh;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-strength .st-bound__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-strength .st-bound__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-strength .st-bound__band-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-block: var(--section-y) var(--space-6);
}

.page-strength .st-bound__band-inner h2 {
  font-size: var(--text-3xl);
  color: var(--color-contrast-ink);
}

.page-strength .st-bound__band-inner p {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--st-dark-soft);
}

.page-strength .st-bound__list {
  display: grid;
  gap: var(--space-6) var(--space-8);
  margin: var(--space-8) 0 0;
  padding: 0;
  list-style: none;
}

.page-strength .st-bound__list h3 {
  font-size: var(--text-lg);
  color: var(--color-ink);
}

.page-strength .st-bound__list h3::before {
  content: "—";
  margin-right: var(--space-2);
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.page-strength .st-bound__list p {
  margin-top: var(--space-1);
  max-width: 44ch;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

/* ---------- 指标口径 ---------- */
.page-strength .st-metrics {
  padding-block: var(--section-y);
  background-color: var(--color-surface-alt);
}

.page-strength .st-metrics__groups {
  display: grid;
  gap: var(--space-8);
}

.page-strength .st-metrics__group h3 {
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.page-strength .st-metric-list {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-strength .st-metric-list li {
  position: relative;
  padding-left: var(--space-3);
}

.page-strength .st-metric-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: var(--space-1);
  height: var(--border-thick);
  background: var(--color-accent);
}

.page-strength .st-metric-list__name {
  font-family: var(--font-heading);
  color: var(--color-ink);
}

.page-strength .st-metric-list__note {
  margin-top: var(--space-1);
  max-width: 46ch;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-strength .st-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.page-strength .st-arrow::after {
  content: "→";
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.page-strength .st-arrow:hover {
  background: color-mix(in srgb, var(--color-primary) 26%, var(--color-primary-soft));
}

/* ---------- 下一步 ---------- */
.page-strength .st-next {
  padding-block: var(--section-y);
  background-color: var(--color-surface);
}

.page-strength .st-next__inner {
  display: grid;
  gap: var(--space-6);
}

.page-strength .st-next h2 {
  font-size: var(--text-3xl);
  max-width: 22ch;
}

.page-strength .st-next__col p {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-strength .st-next__contact {
  font-size: var(--text-sm);
}

.page-strength .st-next__contact .mono {
  color: var(--color-ink);
}

.page-strength .st-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-content: start;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-strength .st-hero__inner {
    padding-block: var(--space-8) var(--section-y-lg);
  }

  .page-strength .st-hero__figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-8);
  }

  .page-strength .st-hero__vmark {
    display: block;
    right: var(--space-6);
  }

  .page-strength .st-line__head,
  .page-strength .st-metrics__head,
  .page-strength .st-collab__head-body {
    gap: var(--space-4);
  }

  .page-strength .st-collab__head {
    padding: var(--space-8) var(--space-6);
  }

  .page-strength .st-bound__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-strength .st-metrics__groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面：非对称分栏 ---------- */
@media (min-width: 960px) {
  .page-strength .st-cap {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.75fr);
    column-gap: var(--space-8);
    row-gap: var(--space-3);
  }

  .page-strength .st-cap__call {
    grid-column: 1 / -1;
  }

  .page-strength .st-line__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 32%);
    column-gap: var(--space-8);
  }

  .page-strength .st-line__aside {
    position: sticky;
    top: var(--space-8);
    align-self: start;
  }

  .page-strength .st-next__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 30%);
    column-gap: var(--space-8);
    align-items: start;
  }

  .page-strength .st-next__actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 1360px) {
  .page-strength .st-readout {
    display: block;
    position: fixed;
    top: 50%;
    left: 0;
    z-index: 3;
    margin: 0;
    padding-left: var(--space-1);
    transform: translateY(-50%);
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.24em;
    color: var(--color-ink-muted);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-strength .st-chip,
  .page-strength .st-arrow,
  .page-strength .st-cap__key {
    transition: none;
  }
}