/* ===== 页面：features-advanced / 跨联赛指标对照 ===== */

.page-features-advanced {
  --pa-rail: calc(var(--space-8) + var(--space-6));
  --pa-field: calc(var(--space-8) + var(--space-4));
  --pa-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 首屏 --- */
.page-features-advanced .pa-hero {
  padding-top: var(--space-6);
}

.page-features-advanced .pa-hero-title {
  margin: var(--space-2) 0 0;
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  max-width: 22ch;
}

.page-features-advanced .pa-hero-lead {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

/* 目录：横向刻度带，可滚动吸附 */
.page-features-advanced .pa-index {
  margin-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-features-advanced .pa-index-list {
  display: flex;
  align-items: stretch;
  gap: var(--space-1);
  margin: 0;
  padding: var(--space-2) 0;
  list-style: none;
  min-width: max-content;
}

.page-features-advanced .pa-index-list > li {
  scroll-snap-align: start;
}

.page-features-advanced .pa-index-list a {
  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-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  font-size: var(--text-sm);
  transition: color 140ms var(--pa-ease), border-color 140ms var(--pa-ease),
    background-color 140ms var(--pa-ease);
}

.page-features-advanced .pa-index-list a:hover,
.page-features-advanced .pa-index-list a:focus-visible {
  color: var(--color-ink);
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.page-features-advanced .pa-index-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

/* --- 01 使用前提 --- */
.page-features-advanced .pa-position-grid {
  align-items: start;
}

.page-features-advanced .pa-prereq {
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
}

.page-features-advanced .pa-prereq h3 {
  margin: 0 0 var(--space-2);
}

.page-features-advanced .pa-prereq-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.page-features-advanced .pa-prereq-list li {
  display: grid;
  grid-template-columns: var(--pa-field) 1fr;
  gap: var(--space-1);
  align-items: baseline;
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-base);
  color: var(--color-ink);
}

.page-features-advanced .pa-prereq-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-features-advanced .pa-prereq-idx {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

/* --- 02 校准规则 --- */
.page-features-advanced .pa-calib-grid {
  margin-top: var(--space-4);
  align-items: start;
}

.page-features-advanced .pa-calib-figure {
  margin: 0;
}

.page-features-advanced .pa-calib-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-features-advanced .pa-calib-figure figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.6;
}

.page-features-advanced .pa-scale {
  display: block;
  width: 100%;
  max-width: calc(var(--space-8) * 6);
  height: auto;
  margin: var(--space-6) 0 var(--space-3);
}

.page-features-advanced .pa-scale line {
  stroke: var(--color-line);
  stroke-width: 2;
  stroke-linecap: round;
}

.page-features-advanced .pa-scale line:nth-child(2) {
  stroke: var(--color-primary);
}

.page-features-advanced .pa-scale line:nth-child(3) {
  stroke: var(--color-accent);
}

.page-features-advanced .pa-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
}

.page-features-advanced .pa-table {
  width: 100%;
  min-width: calc(var(--space-8) * 10);
  border-collapse: collapse;
  font-size: var(--text-base);
}

.page-features-advanced .pa-table caption {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features-advanced .pa-table th,
.page-features-advanced .pa-table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  vertical-align: top;
  border-bottom: var(--border-thin) solid var(--color-line);
  line-height: 1.7;
}

.page-features-advanced .pa-table thead th {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  color: var(--color-ink-muted);
  letter-spacing: 0.04em;
}

.page-features-advanced .pa-table tbody th {
  color: var(--color-ink);
  font-weight: var(--weight-heading);
}

.page-features-advanced .pa-table tbody td {
  color: var(--color-ink-soft);
}

.page-features-advanced .pa-table tbody tr:last-child th,
.page-features-advanced .pa-table tbody tr:last-child td {
  border-bottom: 0;
}

/* --- 03 六项能力 --- */
.page-features-advanced .pa-abilities-frame {
  margin: 0 0 var(--space-6);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-features-advanced .pa-abilities-head {
  max-width: var(--measure);
}

.page-features-advanced .pa-abilities-head .prose {
  margin-top: var(--space-2);
}

.page-features-advanced .pa-abilities {
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.page-features-advanced .pa-ability {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  transition: border-color 160ms var(--pa-ease), box-shadow 160ms var(--pa-ease);
}

.page-features-advanced .pa-ability:hover,
.page-features-advanced .pa-ability:focus-within {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-1);
}

.page-features-advanced .pa-ability-rail {
  display: flex;
  align-items: flex-start;
}

.page-features-advanced .pa-ability-id {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--color-primary);
}

.page-features-advanced .pa-ability-body h3 {
  margin: 0;
}

.page-features-advanced .pa-ability-sum {
  margin: var(--space-1) 0 0;
  max-width: var(--measure);
  color: var(--color-ink);
}

.page-features-advanced .pa-fields {
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-2);
}

.page-features-advanced .pa-fields > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.page-features-advanced .pa-fields dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

.page-features-advanced .pa-fields dd {
  margin: 0;
  color: var(--color-ink-soft);
  line-height: 1.7;
}

/* --- 04 适用与不适用（亮底区块） --- */
.page-features-advanced .pa-limits-lead {
  margin-top: var(--space-2);
  max-width: var(--measure);
}

.page-features-advanced .section--contrast .eyebrow {
  color: var(--color-contrast-accent);
}

.page-features-advanced .pa-scope-grid {
  margin-top: var(--space-4);
  align-items: start;
}

.page-features-advanced .pa-scope h3 {
  margin: 0 0 var(--space-2);
}

.page-features-advanced .pa-scope--no {
  border-left: 3px solid var(--color-contrast-accent);
  padding-left: var(--space-3);
}

.page-features-advanced .pa-scope-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.page-features-advanced .pa-scope-list li {
  position: relative;
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  line-height: 1.7;
}

.page-features-advanced .pa-scope-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-features-advanced .pa-scope-list li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 2px;
  margin-right: var(--space-1);
  vertical-align: middle;
  background: var(--color-contrast-accent);
}

.page-features-advanced .pa-scope--no .pa-scope-list li::before {
  background: var(--color-contrast-ink);
  opacity: 0.45;
}

/* --- 05 读法 --- */
.page-features-advanced .pa-reading-grid {
  align-items: start;
}

.page-features-advanced .pa-reading {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.page-features-advanced .pa-reading > li {
  display: grid;
  grid-template-columns: var(--pa-rail) 1fr;
  gap: var(--space-2);
  align-items: start;
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features-advanced .pa-reading > li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-features-advanced .pa-reading-idx {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  line-height: 1;
  color: var(--color-accent);
}

.page-features-advanced .pa-reading h3 {
  margin: 0;
}

.page-features-advanced .pa-reading p {
  margin: var(--space-1) 0 0;
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-features-advanced .pa-reading-note {
  margin-top: var(--space-4);
  padding: var(--space-2) var(--space-3);
  border-left: 3px solid var(--color-primary);
  background: var(--color-primary-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  max-width: var(--measure);
  color: var(--color-ink);
}

.page-features-advanced .pa-reading-figure {
  margin: 0;
}

.page-features-advanced .pa-reading-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-features-advanced .pa-reading-figure figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.6;
}

/* --- 06 继续阅读 --- */
.page-features-advanced .pa-next {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-1);
}

.page-features-advanced .pa-next-link {
  display: grid;
  grid-template-columns: var(--pa-rail) 1fr;
  gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-3) var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: border-color 160ms var(--pa-ease), background-color 160ms var(--pa-ease),
    transform 160ms var(--pa-ease);
}

.page-features-advanced .pa-next-link:hover,
.page-features-advanced .pa-next-link:focus-visible {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-features-advanced .pa-next-idx {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.06em;
}

.page-features-advanced .pa-next-main {
  display: grid;
  gap: 2px;
}

.page-features-advanced .pa-next-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-features-advanced .pa-next-desc {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: 1.6;
}

.page-features-advanced .pa-next-note {
  margin-top: var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.7;
}

/* --- 窄屏兜底 --- */
@media (max-width: 599px) {
  .page-features-advanced .pa-prereq-list li,
  .page-features-advanced .pa-reading > li,
  .page-features-advanced .pa-next-link {
    grid-template-columns: 1fr;
  }

  .page-features-advanced .pa-reading-idx {
    font-size: var(--text-lg);
  }
}

/* --- 桌面增强 --- */
@media (min-width: 900px) {
  .page-features-advanced .pa-hero-title {
    font-size: var(--text-4xl);
  }

  .page-features-advanced .pa-ability {
    grid-template-columns: var(--pa-rail) 1fr;
    gap: var(--space-4);
    padding: var(--space-4);
  }

  .page-features-advanced .pa-fields > div {
    grid-template-columns: var(--pa-field) 1fr;
    gap: var(--space-2);
    align-items: baseline;
  }

  .page-features-advanced .pa-calib-grid,
  .page-features-advanced .pa-reading-grid {
    gap: var(--gutter);
  }
}