/* =========================================================
   page-features — 数据指标看板
   ========================================================= */

.page-features {
  --feat-rule-weight: 2px;
  background-color: var(--color-surface);
}

/* ---------- 首屏：深色数字带 ---------- */

.page-features .feat-hero {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--space-6) var(--space-8);
  overflow: hidden;
}

.page-features .feat-hero .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-features .feat-hero .breadcrumbs a {
  color: inherit;
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  padding-bottom: 2px;
}

.page-features .feat-hero .breadcrumbs a:hover,
.page-features .feat-hero .breadcrumbs a:focus-visible {
  color: var(--color-contrast-accent);
  border-bottom-color: var(--color-contrast-accent);
  outline: none;
}

.page-features .feat-hero .eyebrow {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-contrast-accent);
}

.page-features .feat-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.96;
  letter-spacing: -0.035em;
  color: var(--color-contrast-ink);
}

.page-features .feat-lede {
  max-width: 56ch;
  margin: 0 0 var(--space-6);
  font-size: var(--text-lg);
  line-height: 1.55;
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
}

/* ---------- 首屏数字块 ---------- */

.page-features .feat-stats {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--border-thin);
  background-color: var(--color-contrast-line);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-features .feat-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4) var(--space-4);
  background-color: var(--color-contrast-surface);
}

.page-features .feat-stat__value {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25em;
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--color-contrast-ink);
}

.page-features .feat-stat__unit {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  letter-spacing: 0;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-features .feat-stat__label {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-features .feat-stat__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

/* ---------- 赛季进度条 ---------- */

.page-features .feat-progress {
  margin-bottom: var(--space-6);
}

.page-features .feat-progress__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.page-features .feat-progress__track {
  height: var(--space-1);
  border-radius: var(--radius-pill);
  background-color: var(--color-contrast-line);
  overflow: hidden;
}

.page-features .feat-progress__fill {
  display: block;
  width: 89%;
  height: 100%;
  border-radius: var(--radius-pill);
  background-image: linear-gradient(90deg, var(--color-primary) 0%, var(--color-contrast-accent) 100%);
}

/* ---------- 首屏图片 ---------- */

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

.page-features .feat-hero__figure .media {
  border-radius: var(--radius-lg);
}

/* ---------- 分组索引条 ---------- */

.page-features .feat-index {
  background-color: var(--color-surface-deep);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features .feat-index__list {
  list-style: none;
  margin: 0;
  padding: var(--space-2) 0;
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-features .feat-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-features .feat-index__link .num {
  color: var(--color-accent);
}

.page-features .feat-index__link:hover,
.page-features .feat-index__link:focus-visible {
  color: var(--color-ink);
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  outline: none;
}

/* ---------- 指标分组 ---------- */

.page-features .feat-group {
  padding-block: var(--space-8);
  background-color: var(--color-surface);
  scroll-margin-top: var(--space-8);
}

.page-features .feat-group--alt {
  background-color: var(--color-surface-alt);
}

.page-features .feat-group__head {
  display: grid;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
  border-bottom: var(--feat-rule-weight) solid var(--color-contrast-surface);
}

.page-features .feat-group__ident {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  min-width: 0;
}

.page-features .feat-group__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

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

.page-features .feat-group__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin: 0;
}

.page-features .feat-group__meta > div {
  min-width: 0;
}

.page-features .feat-group__meta dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-features .feat-group__meta dd {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

/* ---------- 指标表 ---------- */

.page-features .feat-table-wrap {
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  overflow-x: auto;
}

.page-features .feat-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-features .feat-table__caption {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
  background-color: var(--color-surface-alt);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features .feat-col-name { width: 20%; }
.page-features .feat-col-value { width: 13%; }
.page-features .feat-col-note { width: 30%; }
.page-features .feat-col-sample { width: 12%; }
.page-features .feat-col-round { width: 13%; }
.page-features .feat-col-status { width: 12%; }

.page-features .feat-table thead th {
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-surface-deep);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-body);
  letter-spacing: 0.06em;
  text-align: left;
  white-space: nowrap;
  color: var(--color-ink-soft);
}

.page-features .feat-table tbody td {
  padding: var(--space-2) var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  vertical-align: top;
  color: var(--color-ink);
}

.page-features .feat-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-features .feat-table tbody tr {
  transition: background-color 0.18s ease;
}

.page-features .feat-table tbody tr:hover,
.page-features .feat-table tbody tr:focus-within {
  background-color: var(--color-primary-soft);
}

.page-features .feat-table__name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
}

.page-features .feat-table__value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-variant-numeric: tabular-nums;
  font-weight: var(--weight-heading);
  white-space: nowrap;
  color: var(--color-ink);
}

.page-features .feat-table__note {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-features .feat-table__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  color: var(--color-ink-muted);
}

.page-features .feat-check {
  cursor: help;
}

.page-features .feat-check:focus-visible {
  outline: var(--feat-rule-weight) solid var(--color-focus);
  outline-offset: 2px;
}

.page-features .feat-group__figure {
  margin: var(--space-4) 0 0;
  max-width: 720px;
}

/* ---------- 口径说明区 ---------- */

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

.page-features .feat-body {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-features .feat-convention .span-4,
.page-features .feat-convention .span-8,
.page-features .feat-split .span-5,
.page-features .feat-split .span-7,
.page-features .feat-checking .span-5,
.page-features .feat-checking .span-7 {
  min-width: 0;
}

.page-features .feat-rules {
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.page-features .feat-rule {
  padding-left: var(--space-3);
  border-left: var(--feat-rule-weight) solid var(--color-line);
}

.page-features .feat-rule dt {
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-features .feat-rule dd {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-features .feat-split .pullquote {
  margin-block: var(--space-3);
}

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

/* ---------- 校对时间线 ---------- */

.page-features .feat-timeline {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: var(--space-4);
}

.page-features .feat-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: var(--feat-rule-weight);
  border-radius: var(--radius-pill);
  background-image: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 60%, var(--color-contrast-accent) 100%);
}

.page-features .feat-timeline__node {
  position: relative;
  padding-left: var(--space-4);
}

.page-features .feat-timeline__dot {
  position: absolute;
  left: 0;
  top: 5px;
  width: 16px;
  height: 16px;
  box-sizing: border-box;
  border: var(--feat-rule-weight) solid var(--color-primary);
  border-radius: 50%;
  background-color: var(--color-surface-deep);
}

.page-features .feat-timeline__node--final .feat-timeline__dot {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
}

.page-features .feat-timeline__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-features .feat-timeline__desc {
  margin: 0 0 var(--space-1);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-features .feat-timeline__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-features .feat-checking .figure {
  margin: 0;
}

/* ---------- 延伸入口 ---------- */

.page-features .feat-links {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-features .feat-links > li {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features .feat-link {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-2);
  border-left: calc(var(--border-thin) * 3) solid transparent;
  text-decoration: none;
  color: var(--color-ink);
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.page-features .feat-link:hover,
.page-features .feat-link:focus-visible {
  background-color: var(--color-primary-soft);
  border-left-color: var(--color-primary);
  outline: none;
}

.page-features .feat-link__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-features .feat-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-features .feat-hero {
    padding-block: var(--space-8) var(--space-8);
  }

  .page-features .feat-group__title {
    font-size: var(--text-3xl);
  }

  .page-features .feat-sub-title {
    font-size: var(--text-3xl);
  }

  .page-features .feat-link {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    align-items: baseline;
    gap: var(--space-4);
    padding-inline: var(--space-3);
  }
}

@media (min-width: 900px) {
  .page-features .feat-group__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    gap: var(--space-6);
  }

  .page-features .feat-group__meta {
    justify-content: flex-end;
  }

  .page-features .feat-group__figure {
    max-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-features .feat-index__link,
  .page-features .feat-link,
  .page-features .feat-table tbody tr {
    transition: none;
  }
}