.page-strength {
  --strength-stripe-crisp: repeating-linear-gradient(
    24deg,
    var(--color-primary) 0 10px,
    var(--color-surface) 10px 20px
  );
  --strength-stripe-soft: repeating-linear-gradient(
    24deg,
    color-mix(in srgb, var(--color-contrast-accent) 34%, transparent) 0 8px,
    transparent 8px 16px
  );
  --strength-card-bg: var(--color-surface);
}

.page-strength .breadcrumb {
  padding-block: var(--space-3) var(--space-1);
}

/* ---------- 首屏 ---------- */
.page-strength .strength-top {
  padding-bottom: var(--space-8);
}

.page-strength .strength-hero {
  padding-block: var(--space-4) var(--space-6);
}

.page-strength .strength-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-accent);
}

.page-strength .strength-eyebrow::before {
  content: "";
  flex: none;
  width: 36px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--strength-stripe-crisp);
}

.page-strength .strength-title {
  margin: 0 0 var(--space-4);
  max-width: 20ch;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-strength .strength-title::after {
  content: "";
  display: block;
  width: min(320px, 62%);
  height: 14px;
  margin-top: var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--strength-stripe-crisp);
  opacity: 0.9;
}

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

/* ---------- 三个错位大数字 ---------- */
.page-strength .strength-metrics {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-strength .strength-metric {
  position: relative;
  overflow: hidden;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-strength .strength-metric::after {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: 74px;
  background: var(--strength-stripe-soft);
  opacity: 0.6;
  pointer-events: none;
}

.page-strength .strength-metric-label {
  display: block;
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-strength .strength-metric-value {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin: 0;
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-ink);
  font-variant-numeric: tabular-nums;
}

.page-strength .strength-metric-unit {
  font-size: var(--text-lg);
  font-weight: var(--weight-body);
  color: var(--color-contrast-accent);
}

.page-strength .strength-metric-note {
  position: relative;
  z-index: 1;
  margin: var(--space-4) 0 0;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-contrast-line);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

/* ---------- 图片通用 ---------- */
.page-strength .media-frame {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}

.page-strength .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-strength .strength-hero-media {
  margin-top: var(--space-6);
  aspect-ratio: 16 / 9;
}

.page-strength .strength-hero-media img {
  height: 100%;
  object-fit: cover;
}

.page-strength .strength-group-media {
  margin-bottom: var(--space-6);
  aspect-ratio: 3 / 2;
}

.page-strength .strength-group-media img {
  height: 100%;
  object-fit: cover;
}

.page-strength .media-frame--wide.strength-group-media {
  aspect-ratio: 16 / 5;
}

.page-strength .strength-aside-media {
  aspect-ratio: 3 / 2;
}

.page-strength .media-frame--square.strength-aside-media {
  aspect-ratio: 1 / 1;
}

.page-strength .strength-aside-media img {
  height: 100%;
  object-fit: cover;
}

/* ---------- 分组头 ---------- */
.page-strength .strength-group-head {
  margin-bottom: var(--space-6);
}

.page-strength .strength-group-index {
  font-size: var(--text-4xl);
  line-height: 1;
  font-weight: var(--weight-heading);
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

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

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

/* ---------- 分组正文布局 ---------- */
.page-strength .strength-group-body {
  display: grid;
  gap: var(--space-6);
}

.page-strength .strength-aside {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.page-strength .strength-aside-note {
  margin: 0;
}

/* ---------- 能力条目 ---------- */
.page-strength .strength-items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-strength .strength-item {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--strength-card-bg);
  box-shadow: var(--shadow-1);
}

.page-strength .strength-items--plain .strength-item {
  background: color-mix(in srgb, var(--strength-card-bg) 88%, transparent);
  box-shadow: none;
}

.page-strength .strength-item-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-strength .strength-item > p {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-strength .strength-spec {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-line);
}

.page-strength .strength-spec > div {
  display: grid;
  gap: var(--space-1);
}

.page-strength .strength-spec dt {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.page-strength .strength-spec dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 可展开细注 ---------- */
.page-strength .strength-disclosure {
  margin-top: var(--space-3);
}

.page-strength .disclosure-trigger {
  width: 100%;
  text-align: left;
  font-size: var(--text-sm);
}

.page-strength .disclosure-panel p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 推演示意图 ---------- */
.page-strength .strength-diagram {
  margin-top: var(--space-6);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface-deep);
}

.page-strength .strength-band-svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-strength .strength-band-axis line {
  stroke: var(--color-line);
  stroke-width: 1;
}

.page-strength .strength-band-zone {
  fill: url(#stgBand);
}

.page-strength .strength-band-line {
  stroke: var(--color-accent);
  stroke-width: 1.5;
  stroke-dasharray: 7 7;
}

.page-strength .strength-band-trend {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-strength .strength-band-text {
  fill: var(--color-ink-soft);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}

.page-strength .strength-band-text--muted {
  fill: var(--color-ink-muted);
}

.page-strength .strength-diagram-caption {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 交付标准与边界 ---------- */
.page-strength .strength-boundary {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-strength .strength-boundary-col {
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

.page-strength .strength-boundary-col--deliver {
  background: var(--color-primary-soft);
}

.page-strength .strength-boundary-col--limit {
  background: var(--color-surface-deep);
}

.page-strength .strength-boundary-title {
  margin: 0 0 var(--space-3);
  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-strength .strength-boundary-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.page-strength .strength-boundary-list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-strength .strength-boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

/* ---------- 行动出口 ---------- */
.page-strength .strength-exits-section {
  padding-block: var(--section-y-lg);
}

.page-strength .strength-exits-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-strength .strength-exits-lede {
  margin: 0 0 var(--space-6);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

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

.page-strength .strength-exit {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent);
  color: var(--color-contrast-ink);
  text-decoration: none;
  transition: background-color 220ms ease, transform 220ms ease;
}

.page-strength .strength-exit:hover,
.page-strength .strength-exit:focus-visible {
  background: color-mix(in srgb, var(--color-contrast-accent) 22%, transparent);
}

.page-strength .strength-exit:focus-visible {
  outline: 2px solid var(--color-contrast-accent);
  outline-offset: 3px;
}

.page-strength .strength-exit-kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-contrast-accent);
}

.page-strength .strength-exit-name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-strength .strength-exit-note {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-strength .strength-exits-foot {
  margin: var(--space-6) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-strength .strength-exits-foot a {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-strength .strength-spec {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

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

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

@media (min-width: 768px) {
  .page-strength .strength-group-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
  }

  .page-strength .strength-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-strength .strength-metric--a {
    margin-top: 0;
  }

  .page-strength .strength-metric--b {
    margin-top: var(--space-8);
  }

  .page-strength .strength-metric--c {
    margin-top: var(--space-4);
  }

  .page-strength .strength-hero {
    padding-block: var(--space-6) var(--space-8);
  }
}

@media (min-width: 992px) {
  .page-strength .strength-group--aside .strength-group-body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-strength .strength-group--aside-rev .strength-group-body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-strength .strength-group--aside-rev .strength-aside {
    order: 2;
  }

  .page-strength .strength-exits {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-strength .strength-exit {
    transition: none;
  }
}
</main>