/* ===========================================================
   数据能力看板（/capability/）页面专属样式
   作用域：.page-features
   =========================================================== */

.page-features {
  --feat-skew: clamp(18px, 3.2vw, 44px);
  --feat-rail: calc(var(--space-1) / 2);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: var(--leading-body);
  overflow-x: clip;
}

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

.page-features a {
  transition: text-decoration-thickness 140ms linear, color 140ms linear;
}

.page-features a:hover,
.page-features a:focus-visible {
  text-decoration-thickness: 4px;
  text-underline-offset: 4px;
}

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

/* ---------- 面包屑 ---------- */
.page-features .feat-crumb {
  padding-top: var(--space-4);
  padding-bottom: var(--space-2);
}

/* ---------- 首屏：深色斜切数据块 ---------- */
.page-features .feat-hero {
  position: relative;
  background-color: var(--color-contrast-surface);
  background-image:
    radial-gradient(circle at 84% 10%, color-mix(in srgb, var(--color-contrast-accent) 32%, transparent), transparent 46%),
    radial-gradient(circle at 6% 92%, color-mix(in srgb, var(--color-primary) 34%, transparent), transparent 52%);
  color: var(--color-contrast-ink);
  padding-top: var(--space-6);
  padding-bottom: calc(var(--section-y) + var(--feat-skew));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--feat-skew)), 0 100%);
}

.page-features .feat-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-features .feat-hero__main {
  min-width: 0;
}

.page-features .feat-hero .eyebrow {
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-features .feat-hero__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  max-width: 13ch;
}

.page-features .feat-hero__lede {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}

.page-features .hero-figures {
  list-style: none;
  margin: 0;
  padding: var(--space-4) 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
  border-top: var(--border-thick) solid var(--color-contrast-line);
}

.page-features .hero-figure {
  min-width: 0;
  border-left: var(--feat-rail) solid var(--color-primary);
  padding-left: var(--space-3);
}

.page-features .hero-figure__cat {
  display: block;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
  margin-bottom: var(--space-1);
}

.page-features .hero-figure__num {
  display: block;
  font-size: var(--text-3xl);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-contrast-accent);
  font-variant-numeric: tabular-nums;
}

.page-features .hero-figure__unit {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-features .feat-hero__side {
  display: grid;
  gap: var(--space-3);
  align-content: start;
  min-width: 0;
}

.page-features .feat-hero__figure {
  margin: 0;
}

.page-features .feat-hero__figure .figure__caption {
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.page-features .feat-hero__sum {
  margin: 0;
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-sm);
  line-height: 1.72;
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

/* ---------- 页内分组跳转条 ---------- */
.page-features .feat-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features .feat-jump__label {
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-features .feat-jump a {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 4px;
}

/* ---------- 分组通用 ---------- */
.page-features .feat-group {
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

.page-features .feat-group + .feat-group {
  border-top: var(--border-thick) solid var(--color-line);
  position: relative;
}

.page-features .feat-group + .feat-group::before {
  content: "";
  position: absolute;
  top: calc(var(--border-thick) + var(--space-1));
  left: 0;
  width: 88px;
  height: var(--border-thin);
  background: var(--color-primary);
}

.page-features .feat-group__head h2 {
  margin: var(--space-2) 0 0;
  max-width: 24ch;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: 1.16;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-features .feat-group__intro {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-features .feat-group__note {
  margin: var(--space-6) 0 0;
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.72;
  color: var(--color-ink-soft);
}

.page-features .feat-group__note a {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 3px;
}

/* ---------- 指标卡 ---------- */
.page-features .metric-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-features .metric {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-left: var(--feat-rail) solid var(--color-accent);
  border-radius: var(--radius-md);
  transition: box-shadow 140ms linear, transform 140ms linear, border-color 140ms linear, background-color 140ms linear;
}

.page-features .metric:hover,
.page-features .metric:focus-within {
  background: var(--color-surface);
  border-color: var(--color-ink);
  border-left-color: var(--color-primary);
  box-shadow: var(--shadow-1);
  transform: translate(-2px, -2px);
}

.page-features .metric__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-1) var(--space-2);
}

.page-features .metric__name {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.25;
  letter-spacing: -0.018em;
  color: var(--color-ink);
}

.page-features .metric__value {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin: 0;
  flex-wrap: wrap;
}

.page-features .metric__num {
  font-size: var(--text-2xl);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.page-features .metric__unit {
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.page-features .metric__meta {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.72;
  color: var(--color-ink-soft);
}

.page-features .metric__meta dt {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-features .metric__meta dt:first-child {
  margin-top: 0;
}

.page-features .metric__meta dd {
  margin: var(--space-1) 0 0;
}

.page-features .metric__scale {
  margin-top: auto;
  height: calc(var(--space-1) - 2px);
  background: var(--color-surface-deep);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-features .metric__scale-bar {
  display: block;
  height: 100%;
  width: var(--fill, 100%);
  background-image: linear-gradient(90deg, var(--color-accent), var(--color-primary));
}

.page-features .metric__scale-label {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

/* ---------- 带图分组布局 ---------- */
.page-features .annot-layout,
.page-features .contrib-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-features .annot-layout .metric-grid,
.page-features .contrib-layout .metric-grid {
  margin-top: 0;
}

.page-features .annot-figure,
.page-features .contrib-figure {
  margin: 0;
  align-self: start;
}

/* ---------- 维护节奏（深色斜切块） ---------- */
.page-features .feat-ops {
  margin-top: var(--section-y);
  padding-top: calc(var(--section-y) + var(--feat-skew));
  padding-bottom: var(--section-y-lg);
  background-color: var(--color-contrast-surface);
  background-image: radial-gradient(circle at 92% 6%, color-mix(in srgb, var(--color-contrast-accent) 26%, transparent), transparent 42%);
  color: var(--color-contrast-ink);
  clip-path: polygon(0 var(--feat-skew), 100% 0, 100% 100%, 0 100%);
}

.page-features .feat-ops__head {
  max-width: var(--measure);
}

.page-features .feat-ops__head .eyebrow {
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-features .feat-ops__head h2 {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: 1.16;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-features .feat-ops__head p {
  margin: var(--space-3) 0 0;
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-features .feat-ops__figure {
  margin: var(--space-6) 0 0;
}

.page-features .feat-ops__figure .figure__caption {
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-features .ops-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-features .ops-item {
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-contrast-line);
}

.page-features .ops-item__no {
  display: block;
  font-size: var(--text-sm);
  letter-spacing: 0.22em;
  color: var(--color-contrast-accent);
}

.page-features .ops-item h3 {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  letter-spacing: -0.018em;
  color: var(--color-contrast-ink);
}

.page-features .ops-item p {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.72;
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-features .feat-ops__links {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-features .feat-ops__links a {
  color: var(--color-contrast-accent);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 4px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 639px) {
  .page-features .hero-figures {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-features .hero-figure__num {
    font-size: var(--text-2xl);
  }

  .page-features .metric__num {
    font-size: var(--text-xl);
  }

  .page-features .feat-jump {
    gap: var(--space-1) var(--space-2);
  }

  .page-features .feat-jump__label {
    display: block;
    width: 100%;
  }
}

@media (min-width: 700px) {
  .page-features .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-features .feat-group__head h2,
  .page-features .feat-ops__head h2 {
    font-size: var(--text-2xl);
  }

  .page-features .ops-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-features .feat-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: var(--space-8) var(--space-6);
  }

  .page-features .feat-hero__main {
    grid-column: 1 / -1;
  }

  .page-features .hero-figures {
    grid-column: 1;
    grid-row: 2;
  }

  .page-features .feat-hero__side {
    grid-column: 2;
    grid-row: 2;
  }
}

@media (min-width: 1000px) {
  .page-features .annot-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-features .contrib-layout {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-features .annot-layout .metric-grid,
  .page-features .contrib-layout .metric-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1060px) {
  .page-features .metric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-features * {
    transition-duration: 0ms !important;
  }

  .page-features .metric:hover,
  .page-features .metric:focus-within {
    transform: none;
  }
}

.page-features {
  --fill: currentColor;
}