.page-strength {
  --strength-slant: 36px;
  --strength-aside: 100%;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

@media (min-width: 900px) {
  .page-strength {
    --strength-slant: 72px;
    --strength-aside: 296px;
  }
}

/* ---------- 面包屑 ---------- */
.page-strength .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-strength .crumb a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
}

.page-strength .crumb a:hover,
.page-strength .crumb a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-strength .crumb [aria-current="page"] {
  color: var(--color-ink);
  font-weight: 700;
}

/* ---------- 首屏指挥板 ---------- */
.page-strength .board-hero {
  position: relative;
  margin-top: var(--space-3);
  padding: var(--space-8) 0 calc(var(--space-8) + var(--strength-slant));
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--strength-slant)), 0 100%);
  overflow: hidden;
}

.page-strength .board-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-strength .board-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.page-strength .board-hero__inner {
  position: relative;
  z-index: 2;
}

.page-strength .board-hero__eyebrow {
  color: var(--color-contrast-accent);
}

.page-strength .board-hero h1 {
  margin: var(--space-2) 0 0;
  max-width: 12ch;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 0.94;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-strength .board-hero__lede {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  font-size: var(--text-lg);
  line-height: 1.5;
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
}

.page-strength .board-figures {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  border-top: var(--border-thick) solid var(--color-contrast-line);
}

@media (min-width: 720px) {
  .page-strength .board-figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-strength .board-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-strength .figure-cell + .figure-cell {
    padding-left: var(--space-3);
    border-left: var(--border-thin) solid var(--color-contrast-line);
  }
}

.page-strength .figure-cell__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: color-mix(in srgb, var(--color-primary) 74%, var(--color-primary-ink));
}

.page-strength .figure-cell__label {
  display: block;
  margin-top: var(--space-2);
  max-width: 22ch;
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-contrast-ink);
}

.page-strength .figure-cell__note {
  display: block;
  margin-top: var(--space-2);
  padding-top: var(--space-1);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: color-mix(in srgb, var(--color-contrast-ink) 64%, transparent);
}

/* ---------- 指标流 ---------- */
.page-strength .metric-stream {
  padding-top: var(--space-8);
}

.page-strength .metric-group {
  position: relative;
  padding-top: var(--space-6);
  border-top: var(--border-thick) solid var(--color-line);
}

.page-strength .metric-group::before {
  content: "";
  position: absolute;
  top: calc(-1 * var(--border-thick));
  left: 0;
  width: 88px;
  height: var(--border-thick);
  background: var(--color-primary);
}

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

.page-strength .metric-group__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

@media (min-width: 900px) {
  .page-strength .metric-group__grid {
    grid-template-columns: var(--strength-aside) minmax(0, 1fr);
    gap: var(--space-6);
  }
}

.page-strength .metric-group__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-strength .metric-group__title {
  margin: var(--space-1) 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-strength .metric-group__intro {
  margin: 0;
  max-width: 36ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-strength .metric-group__body {
  display: grid;
  gap: var(--space-4);
}

.page-strength .metric-group__foot {
  margin: 0;
  padding: var(--space-3);
  background: color-mix(in srgb, var(--color-accent) 10%, var(--color-surface));
  border-left: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-strength .metric-group__foot a,
.page-strength .metric-item__desc a {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 45%, transparent);
}

.page-strength .metric-group__foot a:hover,
.page-strength .metric-item__desc a:hover {
  border-bottom-color: var(--color-accent);
}

/* ---------- 指标条目 ---------- */
.page-strength .metric-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-strength .metric-list--tight {
  gap: var(--space-1);
}

.page-strength .metric-item {
  display: grid;
  grid-template-columns: minmax(5.5rem, auto) minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-strength .metric-item:nth-child(even) {
  border-left-color: var(--color-accent);
}

.page-strength .metric-item__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  white-space: nowrap;
}

.page-strength .metric-item:nth-child(even) .metric-item__num {
  color: var(--color-accent);
}

.page-strength .metric-item__title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-ink);
}

.page-strength .metric-item__desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-ink-soft);
}

/* ---------- 图片框 ---------- */
.page-strength .shot-figure {
  margin: 0;
}

.page-strength .shot {
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-deep);
  box-shadow: var(--shadow-2);
}

.page-strength .shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-strength .shot--3x2 {
  aspect-ratio: 3 / 2;
}

.page-strength .shot--16x9 {
  aspect-ratio: 16 / 9;
}

.page-strength .shot-figure__cap {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-muted);
}

/* ---------- 分段切换 ---------- */
.page-strength .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thick) solid var(--color-line);
}

.page-strength .tab {
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer;
}

.page-strength .tab[aria-selected="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-strength .tab:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-strength .tabpanel {
  padding-top: var(--space-3);
}

.page-strength .tabpanel[hidden] {
  display: none;
}

.page-strength .tabpanel:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 结尾出口 ---------- */
.page-strength .closing {
  margin: var(--space-8) 0 var(--section-y);
  padding: var(--space-6) var(--space-4);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-lg);
}

@media (min-width: 900px) {
  .page-strength .closing {
    padding: var(--space-8);
  }
}

.page-strength .closing__eyebrow {
  color: var(--color-contrast-accent);
}

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

.page-strength .closing__text {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-strength .exit-list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}

@media (min-width: 720px) {
  .page-strength .exit-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-strength .exit-list li:empty {
  display: none;
}

.page-strength .exit-list a {
  display: block;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.page-strength .exit-list a:hover,
.page-strength .exit-list a:focus-visible {
  background: color-mix(in srgb, var(--color-contrast-accent) 22%, transparent);
  border-color: var(--color-contrast-accent);
  transform: translate(-2px, -2px);
}

.page-strength .exit-list a:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-strength .exit-list__title {
  display: block;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-contrast-ink);
}

.page-strength .exit-list__desc {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

.page-strength .closing__tail {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-strength .closing__tail a {
  color: var(--color-contrast-accent);
  font-weight: 700;
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-contrast-accent) 55%, transparent);
}

.page-strength .closing__tail a:hover {
  border-bottom-color: var(--color-contrast-accent);
}

@media (prefers-reduced-motion: reduce) {
  .page-strength .exit-list a {
    transition: none;
  }

  .page-strength .exit-list a:hover,
  .page-strength .exit-list a:focus-visible {
    transform: none;
  }
}