.page-articles-popular {
  --yp-gap-line: 1px;
}

.page-articles-popular .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

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

.page-articles-popular .breadcrumb a:hover,
.page-articles-popular .breadcrumb a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-articles-popular .breadcrumb__sep {
  color: var(--color-line);
}

/* ---------- 首屏 ---------- */

.youth-lead {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.youth-lead__grid {
  display: grid;
  gap: var(--space-6);
}

.youth-lead__title {
  margin: var(--space-2) 0 var(--space-3);
  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);
}

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

.youth-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-4);
  margin: 0;
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.youth-figure {
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-1);
  min-width: 0;
}

.youth-figure__label {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

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

.youth-figure__num {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.05;
  color: var(--color-primary);
}

.youth-figure__unit {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.youth-figure__plus {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  padding: 0 var(--space-1);
}

.youth-figure:nth-child(even) {
  padding-top: var(--space-4);
}

.youth-figure:nth-child(2) .youth-figure__num {
  color: var(--color-accent);
}

/* ---------- 区块头 ---------- */

.youth-head {
  margin-bottom: var(--space-6);
}

.youth-head .section-title {
  margin: var(--space-2) 0 var(--space-3);
  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);
}

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

/* ---------- 梯队层级 ---------- */

.page-articles-popular .media-frame img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.youth-ladder__visual {
  margin: 0 0 var(--space-8);
}

.youth-squad .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.youth-squad__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.youth-squad__card {
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  transition: transform 160ms ease-out, box-shadow 160ms ease-out, background-color 160ms ease-out;
}

.youth-squad__card:nth-child(odd) {
  --sq-accent: var(--color-primary);
}

.youth-squad__card:nth-child(even) {
  --sq-accent: var(--color-accent);
}

.youth-squad__card:hover,
.youth-squad__card:focus-visible,
.youth-squad__card:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  background: var(--color-primary-soft);
  outline: none;
}

.youth-squad__card:focus-visible {
  box-shadow: 0 0 0 2px var(--color-focus);
}

.youth-squad__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.youth-squad__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  padding: 2px var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--sq-accent, var(--color-primary));
  color: var(--color-primary-ink);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.youth-squad__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.youth-squad__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.youth-squad__desc {
  margin: 0 0 var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.youth-squad__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  margin: auto 0 0;
  padding-top: var(--space-3);
  border-top: var(--yp-gap-line) solid var(--color-line);
}

.youth-squad__meta dt {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.youth-squad__meta dd {
  margin: var(--space-1) 0 0;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink);
}

/* ---------- 轮次进度 ---------- */

.youth-progress__scale {
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  margin-bottom: var(--space-6);
}

.youth-progress__scale-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.youth-progress__scale-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  letter-spacing: var(--tracking-heading);
}

.youth-progress__scale-state {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

.round-scale {
  display: block;
  width: 100%;
  height: auto;
}

.round-scale__axis {
  stroke: var(--color-line);
  stroke-width: 2;
}

.round-scale__past line {
  stroke: var(--color-primary);
  stroke-width: 4;
  stroke-linecap: round;
  opacity: 0.5;
}

.round-scale__now line {
  stroke: var(--color-primary);
  stroke-width: 6;
  stroke-linecap: round;
}

.round-scale__now circle {
  fill: var(--color-primary);
}

.round-scale__future line {
  stroke: var(--color-line);
  stroke-width: 4;
  stroke-linecap: round;
}

.round-scale__labels text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  fill: var(--color-ink-muted);
}

.round-scale__labels .round-scale__label-now {
  fill: var(--color-primary);
  font-weight: 700;
}

.round-scale__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.round-scale__legend li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.round-scale__key {
  display: inline-block;
  width: 18px;
  height: 3px;
  border-radius: var(--radius-pill);
}

.round-scale__key--past {
  background: var(--color-primary);
  opacity: 0.5;
}

.round-scale__key--now {
  background: var(--color-primary);
}

.round-scale__key--future {
  background: var(--color-line);
}

.youth-progress__figure {
  margin: 0 0 var(--space-8);
}

/* ---------- 训练周节奏 ---------- */

.youth-rhythm {
  display: grid;
  gap: var(--space-6);
}

.youth-rhythm__media {
  margin: 0;
}

.youth-rhythm__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);
  color: var(--color-ink);
}

.youth-rhythm__intro {
  margin: 0 0 var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.youth-rhythm__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-4);
}

.youth-rhythm__item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.youth-rhythm__index {
  flex: 0 0 auto;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  padding-top: 2px;
}

.youth-rhythm__text h4 {
  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);
}

.youth-rhythm__text p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 参与条件 ---------- */

.youth-join__grid {
  display: grid;
  gap: var(--space-6);
}

.youth-join__intro p {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.youth-join__note {
  margin: var(--space-4) 0 0;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-6);
  background: var(--color-highlight);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.youth-join__note p {
  max-width: none;
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.youth-join__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-4);
}

.youth-join__item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding-bottom: var(--space-4);
  border-bottom: var(--yp-gap-line) solid var(--color-line);
}

.youth-join__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.youth-join__index {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
}

.youth-join__item h3 {
  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);
}

.youth-join__item p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 相邻入口 ---------- */

.youth-neighbors__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.youth-neighbors .entry-list .entry + .entry {
  border-top: var(--yp-gap-line) solid var(--color-line);
}

.youth-neighbors .entry__index {
  color: var(--color-primary);
  font-size: var(--text-sm);
}

.youth-neighbors .entry__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
}

.youth-neighbors .entry__link {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: transform 140ms ease-out, border-color 140ms ease-out;
  display: inline-block;
}

.youth-neighbors .entry__link:hover,
.youth-neighbors .entry__link:focus-visible {
  border-bottom-color: var(--color-primary);
  transform: translateX(2px);
}

.youth-neighbors .entry__desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .youth-squad__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .youth-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .youth-figure:nth-child(even) {
    padding-top: var(--space-6);
  }
}

@media (min-width: 900px) {
  .youth-lead__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
    align-items: start;
  }

  .youth-lead {
    padding-top: var(--section-y-lg);
    padding-bottom: var(--section-y);
  }

  .youth-lead__title {
    font-size: var(--text-4xl);
  }

  .youth-rhythm {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: var(--space-8);
    align-items: start;
  }

  .youth-join__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-8);
    align-items: start;
  }

  .youth-progress__scale {
    padding: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .youth-head .section-title {
    font-size: var(--text-3xl);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-articles-popular .youth-squad__card,
  .page-articles-popular .youth-neighbors .entry__link {
    transition: none;
  }

  .page-articles-popular .youth-squad__card:hover,
  .page-articles-popular .youth-squad__card:focus-visible,
  .page-articles-popular .youth-squad__card:focus-within {
    transform: none;
  }

  .page-articles-popular .youth-neighbors .entry__link:hover,
  .page-articles-popular .youth-neighbors .entry__link:focus-visible {
    transform: none;
  }
}