/* ===== 赛事专题 /special/ ===== */

.page-topics .topics-hero {
  position: relative;
  overflow: hidden;
}

.page-topics .topics-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.page-topics .topics-hero-kicker {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.page-topics .topics-hero-title {
  margin: 0 0 var(--space-4);
  color: var(--color-ink);
  line-height: 1.12;
  letter-spacing: var(--tracking-heading);
  max-width: 16ch;
}

.page-topics .topics-hero-lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-topics .topics-hero-figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
}

.page-topics .topic-figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-topics .topic-figure:nth-child(2) {
  background: var(--color-primary-soft);
}

.page-topics .topic-figure:nth-child(3) {
  background: var(--color-highlight);
}

.page-topics .topic-figure-num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
}

.page-topics .topic-figure-label {
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-ink-soft);
}

/* 首屏编号带 */
.page-topics .topics-hero-band {
  position: relative;
  margin-top: var(--space-8);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-contrast-surface);
}

.page-topics .topics-hero-bg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-topics .topics-hero-scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-topics .topics-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(11, minmax(0, 1fr));
  gap: var(--space-1);
  margin: 0;
  padding: var(--space-6) 0;
  list-style: none;
}

.page-topics .topics-track-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-family: var(--font-mono);
  color: var(--color-contrast-ink);
}

.page-topics .topics-track-item::after {
  content: "";
  display: block;
  width: 1px;
  height: 22px;
  background: var(--color-contrast-accent);
  opacity: 0.6;
}

.page-topics .topics-track-num {
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* 分类导航 */
.page-topics .cat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-topics .cat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.page-topics .cat-num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-topics .cat-name {
  margin: 0;
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  line-height: var(--leading-heading);
}

.page-topics .cat-desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-topics .cat-rhythm {
  margin: auto 0 0;
  padding-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* 专题流 */
.page-topics .topics-stream {
  margin-top: var(--space-8);
}

.page-topics .topic-block {
  padding: var(--space-4);
  margin-bottom: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-topics .topic-block:last-child {
  margin-bottom: 0;
}

.page-topics .topic-block:nth-child(4n + 2) {
  background: var(--color-primary-soft);
}

.page-topics .topic-block:nth-child(4n + 4) {
  background: var(--color-highlight);
}

.page-topics .topic-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-topics .topic-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-topics .topic-num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
}

.page-topics .topic-cat {
  padding: 2px var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
}

.page-topics .topic-top .status-chip {
  margin-left: auto;
}

.page-topics .topic-title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-topics .topic-lead {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-topics .topic-points {
  display: grid;
  gap: var(--space-1);
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
}

.page-topics .topic-point {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.page-topics .topic-point-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.page-topics .topic-point-text {
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-ink-soft);
}

.page-topics .topic-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
}

.page-topics .topic-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding-bottom: 2px;
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 35%, transparent);
  transition: color 200ms ease;
}

.page-topics .topic-link:hover,
.page-topics .topic-link:focus-visible {
  color: var(--color-accent);
}

.page-topics .topic-arrow {
  display: inline-block;
  transition: transform 200ms ease;
}

.page-topics .topic-link:hover .topic-arrow,
.page-topics .topic-link:focus-visible .topic-arrow {
  transform: translateX(4px);
}

.page-topics .topic-media {
  margin: 0;
  aspect-ratio: 3 / 2;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-topics .topic-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 联动路径 */
.page-topics .linkage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-topics .linkage-diagram {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-topics .linkage-diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-topics .linkage-node {
  fill: var(--color-primary-soft);
  stroke: var(--color-line);
  stroke-width: 1;
}

.page-topics .linkage-node--accent {
  fill: var(--color-highlight);
}

.page-topics .linkage-edge {
  fill: none;
  stroke: var(--color-ink-muted);
  stroke-width: 1.5;
  stroke-dasharray: 5 5;
}

.page-topics .linkage-label {
  fill: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
}

.page-topics .linkage-sub {
  fill: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.page-topics .linkage-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.page-topics .linkage-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-topics .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.page-topics .step-title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-topics .step-text {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

/* 更新与索引（深色区） */
.page-topics .topics-updates {
  color: var(--color-contrast-ink);
}

.page-topics .updates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-topics .updates-title {
  margin: 0 0 var(--space-3);
  color: var(--color-contrast-ink);
}

.page-topics .updates-lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-contrast-ink);
}

.page-topics .updates-panels {
  display: grid;
  gap: var(--space-1);
}

.page-topics .topics-updates .disclosure {
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-contrast-surface) 60%, var(--color-contrast-line));
}

.page-topics .topics-updates .disclosure-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3);
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-contrast-ink);
  font-family: inherit;
  font-size: var(--text-base);
  text-align: left;
  cursor: pointer;
}

.page-topics .topics-updates .disclosure-icon {
  flex: none;
  font-family: var(--font-mono);
  color: var(--color-contrast-accent);
}

.page-topics .topics-updates .disclosure-panel {
  padding: 0 var(--space-3) var(--space-3);
}

.page-topics .topics-updates .disclosure-panel p {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-contrast-ink);
}

/* 延伸索引 */
.page-topics .more-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.page-topics .more-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  text-decoration: none;
  transition: background 200ms ease, transform 200ms ease;
}

.page-topics .more-item:hover,
.page-topics .more-item:focus-visible {
  background: var(--color-primary-soft);
  transform: translateY(-2px);
}

.page-topics .more-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  line-height: var(--leading-heading);
}

.page-topics .more-desc {
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-ink-soft);
}

/* ===== 响应式 ===== */
@media (max-width: 719px) {
  .page-topics .topics-track {
    display: flex;
    gap: var(--space-3);
    overflow-x: auto;
    padding: var(--space-4) 0;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .page-topics .topics-track-item {
    flex: 0 0 auto;
    min-width: 46px;
    scroll-snap-align: start;
  }

  .page-topics .topics-hero-title {
    max-width: none;
  }
}

@media (min-width: 720px) {
  .page-topics .cat-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-topics .more-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-topics .topic-point {
    grid-template-columns: minmax(64px, auto) minmax(0, 1fr);
    align-items: baseline;
    gap: var(--space-3);
  }
}

@media (min-width: 900px) {
  .page-topics .topic-block {
    padding: var(--space-6);
  }

  .page-topics .topic-block--narrow {
    width: 64%;
  }

  .page-topics .topic-block--right {
    margin-left: auto;
  }

  .page-topics .topic-block--full .topic-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--space-6);
  }

  .page-topics .topic-block--media-left .topic-inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-topics .topic-block--media-left .topic-media {
    order: -1;
  }
}

@media (min-width: 960px) {
  .page-topics .topics-hero-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: end;
    gap: var(--space-8);
  }

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

  .page-topics .updates-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
    gap: var(--space-8);
  }
}

@media (min-width: 1080px) {
  .page-topics .cat-row {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-topics .topic-link,
  .page-topics .topic-arrow,
  .page-topics .more-item {
    transition: none;
  }

  .page-topics .more-item:hover,
  .page-topics .more-item:focus-visible {
    transform: none;
  }

  .page-topics .topic-link:hover .topic-arrow,
  .page-topics .topic-link:focus-visible .topic-arrow {
    transform: none;
  }
}