.page-articles {
  --art-angle: 24px;
  --art-frame: var(--border-thick);
}

@media (min-width: 900px) {
  .page-articles {
    --art-angle: 56px;
  }
}

/* ---------- 通用小件 ---------- */
.page-articles .art-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-articles .art-eyebrow::before {
  content: "";
  width: calc(var(--space-2) + var(--space-1));
  height: var(--border-thick);
  background: currentColor;
}

.page-articles .art-h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: clamp(var(--text-lg), 3.6vw, var(--text-2xl));
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  text-wrap: balance;
}

.page-articles [id] {
  scroll-margin-top: var(--space-8);
}

/* ---------- 首屏 ---------- */
.page-articles .art-hero {
  position: relative;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-top: var(--space-8);
  padding-bottom: calc(var(--section-y) + var(--art-angle) + var(--space-4));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--art-angle)), 0 100%);
  overflow: hidden;
}

.page-articles .art-hero__crumbs {
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-articles .art-hero__crumbs a {
  color: inherit;
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-contrast-ink) 34%, transparent);
}

.page-articles .art-hero__crumbs a:hover {
  color: var(--color-contrast-ink);
  border-bottom-color: var(--color-contrast-accent);
}

.page-articles .art-hero__crumbs a:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 3px;
}

.page-articles .art-hero__kicker {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

.page-articles .art-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);
  text-wrap: balance;
  overflow-wrap: break-word;
}

.page-articles .art-hero__split {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

@media (min-width: 900px) {
  .page-articles .art-hero__split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--space-8);
    align-items: start;
  }
}

.page-articles .art-hero__lede {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 86%, transparent);
}

.page-articles .art-hero__lede--sub {
  margin-bottom: 0;
  color: color-mix(in srgb, var(--color-contrast-ink) 64%, transparent);
}

.page-articles .art-hero__panel {
  border: var(--border-thick) solid var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
  padding: var(--space-4);
  box-shadow: var(--shadow-2);
}

.page-articles .art-hero__panel-label {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-articles .art-kpis {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-articles .art-kpi__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-articles .art-kpi__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.4;
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-articles .art-hero__media {
  position: relative;
  margin: var(--space-8) 0 0;
  border: var(--border-thick) solid var(--color-contrast-line);
  overflow: hidden;
}

.page-articles .art-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-articles .art-hero__media .media-scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.page-articles .art-hero__media .media-caption {
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: var(--space-3);
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-contrast-ink);
}

@media (min-width: 760px) {
  .page-articles .art-hero__media .media-caption {
    left: var(--space-4);
    right: auto;
    max-width: calc(var(--measure) / 1.4);
    bottom: var(--space-4);
  }
}

/* ---------- 事件分类 ---------- */
.page-articles .art-events {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  padding-top: var(--section-y-lg);
  padding-bottom: var(--section-y-lg);
}

.page-articles .art-events .art-eyebrow {
  color: color-mix(in srgb, var(--color-primary-ink) 78%, transparent);
}

.page-articles .art-events .art-h2 {
  max-width: 24ch;
}

.page-articles .art-events__note {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-primary-ink) 82%, transparent);
}

.page-articles .art-events__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .page-articles .art-events__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-articles .art-events__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-articles .art-event {
  min-width: 0;
  padding: var(--space-3) var(--space-3) var(--space-4) 0;
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 30%, transparent);
  transition: background-color 160ms ease;
}

.page-articles .art-event__idx {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: color-mix(in srgb, var(--color-contrast-surface) 62%, transparent);
}

.page-articles .art-event__name {
  margin: 0;
  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-primary-ink);
}

.page-articles .art-event__note {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: color-mix(in srgb, var(--color-primary-ink) 80%, transparent);
}

@media (hover: hover) {
  .page-articles .art-event:hover {
    background: color-mix(in srgb, var(--color-contrast-surface) 26%, transparent);
  }
}

/* ---------- 事件流 ---------- */
.page-articles .art-flow {
  background: var(--color-surface);
  padding-top: var(--section-y-lg);
  padding-bottom: var(--section-y-lg);
}

.page-articles .art-flow__head {
  display: grid;
  gap: var(--space-3);
  padding-bottom: var(--space-6);
  border-bottom: var(--border-thick) solid var(--color-line);
}

@media (min-width: 900px) {
  .page-articles .art-flow__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: var(--space-8);
    align-items: end;
  }
}

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

.page-articles .art-flow__grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

@media (min-width: 1000px) {
  .page-articles .art-flow__grid {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

/* 侧边筛选 */
.page-articles .art-filters {
  border: var(--border-thick) solid var(--color-line);
  background: var(--color-surface-alt);
  padding: var(--space-4);
  box-shadow: var(--shadow-1);
}

@media (min-width: 1000px) {
  .page-articles .art-filters {
    position: sticky;
    top: var(--space-6);
  }
}

.page-articles .art-filter-group + .art-filter-group {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-articles .art-filter-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-articles .art-filter-list {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-articles .art-filter-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2);
  border-left: var(--border-thick) solid transparent;
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

.page-articles .art-filter-link:hover {
  background: var(--color-primary-soft);
  border-left-color: var(--color-primary);
}

.page-articles .art-filter-link[aria-current] {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-left-color: var(--color-primary);
}

.page-articles .art-filter-link:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-articles .art-filter-note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-articles .art-filter-note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 3px;
}

.page-articles .art-filter-note a:hover {
  color: var(--color-focus);
}

/* 事件流卡片 */
.page-articles .art-stream {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}

.page-articles .art-post {
  position: relative;
  min-width: 0;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-top: var(--border-thick) solid var(--color-primary);
  padding: var(--space-4);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.page-articles .art-post--data {
  border-top-color: var(--color-accent);
}

.page-articles .art-post--injury {
  border-top-color: var(--color-ink-soft);
}

@media (hover: hover) {
  .page-articles .art-post:hover {
    transform: translate(calc(var(--border-thin) * -1), calc(var(--border-thin) * -1));
    box-shadow: var(--shadow-1);
  }
}

.page-articles .art-post__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-articles .art-post__time {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-articles .art-post__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);
  text-wrap: balance;
}

.page-articles .art-post__text {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-articles .art-post__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin: 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-articles .art-fact {
  min-width: 0;
}

.page-articles .art-fact dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-articles .art-fact dd {
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-ink);
}

/* 带图卡片 */
.page-articles .art-post--feature {
  padding: 0;
  background: var(--color-surface-alt);
  border: var(--border-thick) solid var(--color-contrast-surface);
  box-shadow: var(--shadow-2);
}

.page-articles .art-post__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-articles .art-post__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-articles .art-post__body {
  padding: var(--space-4);
  min-width: 0;
}

@media (min-width: 800px) {
  .page-articles .art-post--feature {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }

  .page-articles .art-post--feature .art-post__media {
    height: 100%;
  }

  .page-articles .art-post--feature .art-post__media img {
    height: 100%;
    aspect-ratio: auto;
  }

  .page-articles .art-post__body {
    padding: var(--space-6);
  }
}

/* ---------- 数据维度 ---------- */
.page-articles .art-dims {
  position: relative;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-top: calc(var(--section-y-lg) + var(--art-angle));
  padding-bottom: var(--section-y-lg);
  clip-path: polygon(0 0, 100% var(--art-angle), 100% 100%, 0 100%);
}

.page-articles .art-dims .art-eyebrow {
  color: var(--color-contrast-accent);
}

.page-articles .art-dims__grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 960px) {
  .page-articles .art-dims__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: var(--space-8);
    align-items: start;
  }
}

.page-articles .art-dims__media {
  margin: 0;
  border: var(--border-thick) solid var(--color-contrast-line);
  overflow: hidden;
}

.page-articles .art-dims__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-articles .art-dims__lede {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-articles .art-dim-list {
  display: grid;
  gap: 0;
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-articles .art-dim {
  padding: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-articles .art-dim:last-child {
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-articles .art-dim__idx {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-contrast-accent);
}

.page-articles .art-dim h3 {
  margin: 0 0 var(--space-1);
  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-contrast-ink);
}

.page-articles .art-dim p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-articles .art-dims__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

/* ---------- 行动出口 ---------- */
.page-articles .art-exit {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  padding-top: var(--section-y-lg);
  padding-bottom: var(--section-y-lg);
}

.page-articles .art-exit .art-eyebrow {
  color: color-mix(in srgb, var(--color-accent-ink) 82%, transparent);
}

.page-articles .art-exit__title {
  max-width: 26ch;
}

.page-articles .art-exit__grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

@media (min-width: 820px) {
  .page-articles .art-exit__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-articles .art-exit__card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border: var(--border-thick) solid color-mix(in srgb, var(--color-accent-ink) 46%, transparent);
  background: color-mix(in srgb, var(--color-accent-ink) 8%, transparent);
  color: inherit;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.page-articles .art-exit__kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.82;
}

.page-articles .art-exit__card h3 {
  margin: 0;
  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);
}

.page-articles .art-exit__card p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  opacity: 0.9;
}

.page-articles .art-exit__go {
  margin-top: auto;
  padding-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-accent-ink) 40%, transparent);
}

.page-articles .art-exit__card:focus-visible {
  outline: var(--border-thick) solid var(--color-contrast-ink);
  outline-offset: 3px;
}

@media (hover: hover) {
  .page-articles .art-exit__card:hover {
    background: var(--color-accent-ink);
    color: var(--color-accent);
    transform: translate(calc(var(--border-thin) * -1), calc(var(--border-thin) * -1));
    box-shadow: var(--shadow-2);
  }

  .page-articles .art-exit__card:hover .art-exit__go {
    border-top-color: color-mix(in srgb, var(--color-accent) 40%, transparent);
  }
}
<<<END>>>