/* ==========================================================================
   页面：赛场动态 /newsroom/
   作用域：.page-news
   ========================================================================== */

.page-news {
  --news-axis-w: var(--space-4);
  --news-dim-on-dark: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
  --news-faint-on-dark: color-mix(in srgb, var(--color-contrast-ink) 40%, transparent);
  --news-card-lift: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
  display: block;
}

/* --------------------------------------------------------------------------
   首屏
   -------------------------------------------------------------------------- */

.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-news .news-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}

.page-news .news-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.page-news .news-hero__crumbs {
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}

.page-news .news-hero__crumbs a {
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-news .news-hero__crumbs [aria-current="page"] {
  color: var(--news-dim-on-dark);
}

.page-news .news-hero__kicker {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-contrast-accent);
}

.page-news .news-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 0.98;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-news .news-hero__grid {
  margin-top: var(--space-6);
}

.page-news .news-hero__lede {
  margin: 0 0 var(--space-6);
  max-width: 48ch;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-news .news-scale {
  border-top: var(--border-thin) solid var(--color-contrast-line);
  padding-top: var(--space-3);
}

.page-news .news-scale__label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: var(--news-faint-on-dark);
}

.page-news .news-scale__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-scale__item {
  position: relative;
  padding-left: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--news-dim-on-dark);
  white-space: nowrap;
}

.page-news .news-scale__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: var(--space-1);
  height: var(--border-thick);
  transform: translateY(-50%);
  background: var(--color-contrast-line);
}

.page-news .news-scale__item.is-current {
  color: var(--color-contrast-accent);
}

.page-news .news-scale__item.is-current::before {
  background: var(--color-contrast-accent);
}

.page-news .news-hero__stats {
  margin-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-news .news-stat {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-news .news-stat:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .news-stat__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-variant-numeric: tabular-nums;
  line-height: 0.84;
  color: var(--color-contrast-accent);
  white-space: nowrap;
}

.page-news .news-stat__unit {
  margin-left: 0.08em;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--news-dim-on-dark);
}

.page-news .news-stat__label {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--news-dim-on-dark);
}

/* --------------------------------------------------------------------------
   区块标题
   -------------------------------------------------------------------------- */

.page-news .news-block-head {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thick) solid var(--color-line);
}

.page-news .news-block-head__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  color: var(--color-accent);
}

.page-news .news-block-head__title {
  margin: 0;
  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-news .news-block-head__note {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* --------------------------------------------------------------------------
   分类标签条
   -------------------------------------------------------------------------- */

.page-news .news-filter {
  margin-bottom: var(--space-6);
  padding: var(--space-2) 0;
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-filter__list {
  display: flex;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: max-content;
}

.page-news .news-filter__link {
  display: inline-block;
  padding: calc(var(--space-1) / 2) var(--space-2);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 200ms ease, color 200ms ease;
}

.page-news .news-filter__link:hover,
.page-news .news-filter__link:focus-visible {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

/* --------------------------------------------------------------------------
   条目流
   -------------------------------------------------------------------------- */

.page-news .news-stream {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .flow-item {
  display: grid;
  grid-template-columns: var(--news-axis-w) minmax(0, 1fr);
  gap: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-news .flow-item__axis {
  position: relative;
}

.page-news .flow-item__axis::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: var(--border-thin);
  transform: translateX(-50%);
  background: var(--color-line);
}

.page-news .flow-item__node {
  position: absolute;
  left: 50%;
  top: calc(var(--space-4) + var(--space-1));
  width: var(--space-2);
  height: var(--space-2);
  transform: translate(-50%, -50%);
  background: var(--color-surface);
  border: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-news .flow-item__body {
  padding: var(--space-4) 0 var(--space-6);
  min-width: 0;
}

.page-news .flow-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-news .flow-item__tag {
  display: inline-block;
  padding: 0 var(--space-2);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  line-height: 1.7;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.page-news .flow-item__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

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

.page-news .flow-item__more {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-news .flow-item__more > summary {
  display: inline-block;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.page-news .flow-item__more > summary::-webkit-details-marker {
  display: none;
}

.page-news .flow-item__more > summary::before {
  content: "+";
  display: inline-block;
  width: var(--space-3);
  font-family: var(--font-mono);
  color: var(--color-accent);
}

.page-news .flow-item__more[open] > summary::before {
  content: "-";
}

.page-news .flow-item__detail {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
}

.page-news .flow-item__detail > div {
  display: grid;
  gap: calc(var(--space-1) / 2);
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary-soft);
}

.page-news .flow-item__detail dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-news .flow-item__detail dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* --------------------------------------------------------------------------
   分类归档卡片
   -------------------------------------------------------------------------- */

.page-news .news-tags {
  background: var(--color-surface-alt);
}

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

.page-news .news-tag-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-top: var(--border-thick) solid var(--color-primary);
  padding: var(--space-3);
}

.page-news .news-tag-card__media {
  margin: calc(var(--space-3) * -1) calc(var(--space-3) * -1) var(--space-3);
  overflow: hidden;
}

.page-news .news-tag-card__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .news-tag-card__num {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  color: var(--color-accent);
}

.page-news .news-tag-card__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-news .news-tag-card__count {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-news .news-tag-card__count-value {
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-right: 0.2em;
}

.page-news .news-tag-card__desc {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-news .news-tag-card__trigger {
  margin: 0 0 var(--space-3);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.page-news .news-tag-card__key {
  display: block;
  margin-bottom: calc(var(--space-1) / 2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.page-news .news-tag-card__link {
  margin-top: auto;
  align-self: flex-start;
  padding-top: var(--space-2);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-decoration: none;
  border-bottom: var(--border-thick) solid var(--color-primary);
}

/* --------------------------------------------------------------------------
   更新机制（深色面板）
   -------------------------------------------------------------------------- */

.page-news .news-mech {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-news .news-mech .news-block-head {
  border-bottom-color: var(--color-contrast-line);
}

.page-news .news-mech .news-block-head__num {
  color: var(--color-contrast-accent);
}

.page-news .news-mech .news-block-head__title {
  color: var(--color-contrast-ink);
}

.page-news .news-mech .news-block-head__note {
  color: var(--news-dim-on-dark);
}

.page-news .news-mech__steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-mech__step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-news .news-mech__step-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--color-contrast-accent);
}

.page-news .news-mech__step-body {
  display: grid;
  gap: var(--space-2);
}

.page-news .news-mech__step-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-news .news-mech__step-text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--news-dim-on-dark);
}

.page-news .news-mech__step-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--news-faint-on-dark);
}

.page-news .news-mech__footnote {
  margin: var(--space-6) 0 0;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-contrast-line);
  background: var(--news-card-lift);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--news-dim-on-dark);
}

/* --------------------------------------------------------------------------
   反馈入口
   -------------------------------------------------------------------------- */

.page-news .news-feedback__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  padding: var(--space-6) var(--space-3);
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-news .news-feedback__num {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  color: color-mix(in srgb, var(--color-primary-ink) 66%, transparent);
}

.page-news .news-feedback__title {
  margin: 0 0 var(--space-3);
  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-primary-ink);
}

.page-news .news-feedback__lede {
  margin: 0;
  max-width: 44ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-primary-ink) 88%, transparent);
}

.page-news .news-feedback__list {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 34%, transparent);
}

.page-news .news-feedback__item {
  display: grid;
  gap: calc(var(--space-1) / 2);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 34%, transparent);
}

.page-news .news-feedback__key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: color-mix(in srgb, var(--color-primary-ink) 68%, transparent);
}

.page-news .news-feedback__value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-primary-ink);
  word-break: break-word;
}

.page-news .news-feedback__note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-primary-ink) 82%, transparent);
}

.page-news .news-feedback__note a {
  color: var(--color-primary-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 60%, transparent);
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */

@media (min-width: 600px) {
  .page-news .flow-item__detail > div {
    grid-template-columns: 6rem minmax(0, 1fr);
    gap: var(--space-3);
  }

  .page-news .news-feedback__item {
    grid-template-columns: 8rem minmax(0, 1fr);
    gap: var(--space-3);
    align-items: baseline;
  }
}

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

  .page-news .news-mech__step {
    grid-template-columns: calc(var(--space-8) + var(--space-2)) minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
  }

  .page-news .news-feedback__panel {
    padding: var(--space-8) var(--space-6);
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__inner {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .page-news .news-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
    align-items: start;
    margin-top: var(--space-8);
  }

  .page-news .news-hero__stats {
    margin-top: 0;
    border-top: 0;
    border-left: var(--border-thin) solid var(--color-contrast-line);
    padding-left: var(--space-6);
  }

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

@media (min-width: 1120px) {
  .page-news .news-tags__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .flow-item {
    gap: var(--space-4);
  }

  .page-news .flow-item__body {
    padding-bottom: var(--space-8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-filter__link {
    transition: none;
  }
}