.page-news {
  --news-border-heavy: 3px solid var(--color-ink);
  --news-rule-gold: 3px solid var(--color-gold);
  background: var(--color-paper);
  color: var(--color-ink);
  overflow-x: clip;
}

/* ===== 首屏框景 ===== */
.page-news .news-hero {
  background: var(--color-ink);
  color: var(--color-white);
  padding: var(--space-4) 0 var(--space-6);
  position: relative;
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, rgba(201, 160, 99, 0.14) 0 1px, transparent 1px 52px);
  pointer-events: none;
}

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

.page-news .news-hero__crumbs a {
  color: rgba(255, 255, 255, 0.62);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-news .news-hero__crumbs a:hover {
  color: var(--color-gold);
}

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

.page-news .news-hero__grid {
  display: grid;
  gap: var(--space-4);
  align-items: stretch;
}

.page-news .news-hero__main {
  padding: var(--space-2) 0;
}

.page-news .news-hero__title {
  font-size: clamp(2.5rem, 8vw, 4.75rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: var(--space-3) 0;
  max-width: 9ch;
  color: var(--color-white);
}

.page-news .news-hero__desc {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
  max-width: 62ch;
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-news .news-hero__browse {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.7);
}

.page-news .news-hero__panel {
  background: var(--color-gold);
  color: var(--color-ink);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-2);
  border: 3px solid var(--color-ink);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.35);
}

.page-news .news-hero__stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-news .news-hero__stat .num {
  font-family: var(--font-mono);
  font-size: 2.375rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-news .news-hero__stat span:last-child {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  text-align: right;
  max-width: 14ch;
}

.page-news .news-hero__divider {
  height: 1px;
  background: rgba(11, 29, 58, 0.3);
}

/* ===== 滚动提示条 ===== */
.page-news .news-ticker {
  display: flex;
  background: var(--color-red);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  border-bottom: var(--news-border-heavy);
  overflow: hidden;
}

.page-news .news-ticker__label {
  flex: 0 0 auto;
  padding: 10px 18px;
  background: var(--color-ink);
  color: var(--color-gold);
  font-weight: 700;
  white-space: nowrap;
  text-transform: uppercase;
}

.page-news .news-ticker__track {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 10px 16px;
  white-space: nowrap;
  animation: news-ticker-scroll 22s linear infinite;
}

.page-news .news-ticker__track span {
  display: inline-flex;
  align-items: center;
}

.page-news .news-ticker__track span::after {
  content: "·";
  margin-left: var(--space-4);
  color: rgba(255, 255, 255, 0.55);
  font-weight: 700;
}

@keyframes news-ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== 主布局 ===== */
.page-news .news-section {
  padding-top: var(--space-5);
  padding-bottom: var(--space-6);
}

.page-news .news-layout {
  display: grid;
  gap: var(--space-5);
}

/* ===== 分类筛选 ===== */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-light-gray);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-news .filter-bar__label {
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-mid-gray);
  margin-right: var(--space-1);
}

.page-news .filter-bar__group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.page-news .filter-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--color-ink);
  padding: 7px 14px;
  border: 2px solid var(--color-ink);
  background: transparent;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 2px 2px 0 transparent;
}

.page-news .filter-btn:hover,
.page-news .filter-btn:focus-visible {
  background: var(--color-ink);
  color: var(--color-white);
  box-shadow: 2px 2px 0 var(--color-gold);
  outline: none;
}

.page-news .filter-btn.is-active {
  background: var(--color-ink);
  color: var(--color-gold);
  box-shadow: 2px 2px 0 var(--color-gold);
}

/* ===== Bento 文章网格 ===== */
.page-news .article-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-news .article-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: var(--news-border-heavy);
  box-shadow: 5px 5px 0 var(--color-ink);
  overflow: hidden;
  scroll-margin-top: calc(var(--header-h) + 20px);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-news .article-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--color-ink);
}

.page-news .article-card:target {
  outline: 4px solid var(--color-gold);
  outline-offset: -4px;
}

.page-news .article-card__media {
  position: relative;
  border-bottom: 2px solid var(--color-ink);
  overflow: hidden;
}

.page-news .article-card__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-news .article-card--lg .article-card__img {
  aspect-ratio: 3 / 2;
}

.page-news .article-card--sm .article-card__img {
  aspect-ratio: 1 / 1;
}

.page-news .article-card--wide .article-card__img {
  aspect-ratio: 2 / 1;
}

.page-news .article-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  box-shadow: 2px 2px 0 var(--color-ink);
}

.page-news .article-card__body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.page-news .article-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-news .article-card__cat {
  color: var(--color-red);
}

.page-news .article-card__time {
  color: var(--color-mid-gray);
}

.page-news .article-card__title {
  font-size: 1.375rem;
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-news .article-card--lg .article-card__title {
  font-size: 1.75rem;
}

.page-news .article-card--wide .article-card__title {
  font-size: 1.625rem;
}

.page-news .article-card__summary {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-deep-gray);
  margin: 0;
}

.page-news .article-card__details {
  margin-top: auto;
  border-top: 1px dashed var(--color-light-gray);
  padding-top: var(--space-2);
  font-size: 0.875rem;
}

.page-news .article-card__details summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-red);
}

.page-news .article-card__details summary::-webkit-details-marker {
  display: none;
}

.page-news .article-card__details summary::before {
  content: "+";
  font-size: 1rem;
  font-weight: 800;
  line-height: 1;
}

.page-news .article-card__details[open] summary::before {
  content: "−";
}

.page-news .article-card__details[open] .article-card__more {
  margin-top: var(--space-2);
  animation: article-fade 0.25s ease;
}

@keyframes article-fade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-news .article-card__more p {
  color: var(--color-deep-gray);
  line-height: 1.65;
  margin: 0;
}

/* ===== 材质变体卡片 ===== */
.page-news .article-card--tone-paper {
  background: var(--color-paper);
}

.page-news .article-card--tone-ink {
  background: var(--color-ink);
  color: var(--color-white);
  border-color: var(--color-ink);
  box-shadow: 5px 5px 0 var(--color-ink);
}

.page-news .article-card--tone-ink .article-card__title {
  color: var(--color-white);
}

.page-news .article-card--tone-ink .article-card__summary {
  color: rgba(255, 255, 255, 0.7);
}

.page-news .article-card--tone-ink .article-card__cat {
  color: var(--color-gold);
}

.page-news .article-card--tone-ink .article-card__time {
  color: rgba(255, 255, 255, 0.5);
}

.page-news .article-card--tone-ink .article-card__details {
  border-top-color: rgba(255, 255, 255, 0.22);
}

.page-news .article-card--tone-ink .article-card__details summary {
  color: var(--color-gold);
}

.page-news .article-card--tone-ink .article-card__more p {
  color: rgba(255, 255, 255, 0.75);
}

/* ===== 版本演进路线 ===== */
.page-news .article-card__roadmap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.page-news .roadmap-item {
  border: 2px solid var(--color-ink);
  background: var(--color-paper);
  padding: var(--space-2) var(--space-1);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .roadmap-item .num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-red);
  line-height: 1;
}

.page-news .roadmap-item span:last-child {
  font-size: 0.6875rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

/* ===== 热门推荐侧栏 ===== */
.page-news .news-hot {
  background: var(--color-ink);
  color: var(--color-white);
  border: var(--news-border-heavy);
  box-shadow: 6px 6px 0 var(--color-ink);
  padding: var(--space-4);
  position: relative;
  align-self: start;
}

.page-news .news-hot .section-title {
  color: var(--color-white);
  font-size: 1.75rem;
  margin-bottom: var(--space-1);
}

.page-news .news-hot .section-desc {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  line-height: 1.6;
}

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

.page-news .news-hot__item {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: var(--space-2);
}

.page-news .news-hot__link {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  text-decoration: none;
  color: var(--color-white);
  transition: color 0.2s ease;
}

.page-news .news-hot__link:hover {
  color: var(--color-gold);
}

.page-news .news-hot__index {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gold);
  line-height: 1.3;
}

.page-news .news-hot__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news .news-hot__body strong {
  font-size: 0.9375rem;
  line-height: 1.4;
}

.page-news .news-hot__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  padding: 2px 8px;
}

/* ===== CTA 引导区 ===== */
.page-news .news-cta {
  background: var(--color-gold);
  border-top: var(--news-border-heavy);
  border-bottom: var(--news-border-heavy);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-news .news-cta__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}

.page-news .news-cta .section-title {
  font-size: clamp(1.75rem, 4vw, 2.375rem);
}

.page-news .news-cta .section-desc {
  color: var(--color-deep-gray);
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ===== 桌面端 ===== */
@media (min-width: 900px) {
  .page-news .news-hero {
    padding: var(--space-5) 0 var(--space-7);
  }

  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--space-5);
  }

  .page-news .news-hero__title {
    margin-top: var(--space-4);
  }

  .page-news .news-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: var(--space-5);
    align-items: start;
  }

  .page-news .article-bento {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-news .article-card--lg {
    grid-column: span 7;
  }

  .page-news .article-card:not(.article-card--lg):not(.article-card--sm):not(.article-card--wide):not(.article-card--full) {
    grid-column: span 5;
  }

  .page-news .article-card--sm {
    grid-column: span 4;
  }

  .page-news .article-card--wide {
    grid-column: span 8;
  }

  .page-news .article-card--full {
    grid-column: 1 / -1;
  }

  .page-news .news-hot {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-news .news-cta__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .page-news .article-card__roadmap {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news .news-ticker__label {
    padding: 8px 12px;
  }

  .page-news .news-hot__index {
    font-size: 1rem;
  }
}