.page-news {
  --moss-color: #4A7C59;
  --card-glass: rgba(245, 240, 230, 0.06);
  --tag-version-bg: rgba(201, 164, 74, 0.15);
  --tag-feature-bg: rgba(74, 124, 89, 0.15);
  --tag-rebuild-bg: rgba(198, 125, 94, 0.15);
}

/* 首屏 Hero 移动优先 */
.page-news__hero {
  position: relative;
  background: var(--green);
  color: var(--ivory);
  overflow: hidden;
  padding: 3rem 0 4rem;
}

.page-news__hero::before {
  content: '';
  position: absolute;
  right: -8rem;
  top: -6rem;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 164, 74, 0.16), transparent 65%);
  pointer-events: none;
}

.page-news__hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 164, 74, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 164, 74, 0.05) 1px, transparent 1px);
  background-size: 3rem 3rem;
  pointer-events: none;
  z-index: 0;
}

.page-news__hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-news__hero-copy .breadcrumb {
  margin-bottom: 1.5rem;
}

.page-news__hero-copy h1 {
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
  margin: 0 0 1.25rem;
  color: var(--ivory);
}

.page-news__hero-copy .lead {
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--mut);
  max-width: 30rem;
  margin-bottom: 1.75rem;
}

.page-news__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.page-news__meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--ivory);
  background: rgba(245, 240, 230, 0.08);
  border: 1px solid var(--ln);
  padding: 0.375rem 0.875rem;
  border-radius: 2px;
  white-space: nowrap;
}

.page-news__meta-badge .stat-num {
  font-size: 1rem;
  color: var(--gold);
}

.page-news__hero-visual {
  border: 1px solid var(--ln);
  background: rgba(18, 18, 18, 0.3);
  overflow: hidden;
  box-shadow: 0 1rem 2rem rgba(18, 18, 18, 0.35);
}

.page-news__hero-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__hero-visual-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.625rem 0.875rem;
  background: rgba(18, 18, 18, 0.55);
  border-top: 1px solid var(--ln);
}

.page-news__hero-visual-caption .idx {
  font-family: var(--mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-news__hero-visual-text {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--mut);
  letter-spacing: 0.05em;
}

/* 内容区移动优先 */
.page-news__content {
  padding: 3.5rem 0 4rem;
}

.page-news__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* 侧边栏 */
.page-news__sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-news__filter-panel,
.page-news__season-panel {
  border: 1px solid var(--ln);
  padding: 1.5rem 1.25rem;
}

.page-news__filter-panel {
  background: var(--gray);
}

.page-news__season-panel {
  background: var(--card-glass);
}

.page-news__filter-panel .section-title,
.page-news__season-panel .section-title {
  font-family: var(--sans);
  font-size: 1.125rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ivory);
  margin: 0 0 1.25rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px solid var(--ln);
}

.page-news__filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news .filter-btn {
  display: inline-block;
  width: auto;
  margin: 0;
  padding: 0.5rem 0.875rem;
  background: rgba(245, 240, 230, 0.06);
  border: 1px solid transparent;
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
  border-radius: 2px;
}

.page-news .filter-btn:hover {
  background: rgba(245, 240, 230, 0.14);
  border-color: var(--ln);
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--red);
  color: var(--ivory);
  border-color: var(--red);
}

/* 赛季索引 */
.page-news__season-item {
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--ln);
}

.page-news__season-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-news__season-item:first-child {
  padding-top: 0;
}

.page-news__season-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.625rem;
}

.page-news__season-head .stat-num {
  font-family: var(--mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.02em;
  line-height: 1;
}

.page-news__season-status {
  font-family: var(--mono);
  font-size: 0.6875rem;
  color: var(--mut);
  background: rgba(245, 240, 230, 0.08);
  padding: 0.25rem 0.5rem;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.page-news__season-status--active {
  background: rgba(198, 125, 94, 0.18);
  color: var(--clay);
}

.page-news__season-item ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-news__season-item li {
  font-family: var(--serif);
  font-size: 0.8125rem;
  color: var(--mut);
  line-height: 1.6;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.25rem;
}

.page-news__season-item li:last-child {
  margin-bottom: 0;
}

.page-news__season-item li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.375rem;
  height: 0.375rem;
  background: var(--gold);
  opacity: 0.6;
  border-radius: 50%;
}

/* 主内容区 */
.page-news__main {
  min-width: 0;
}

.page-news__main .section-head {
  margin-bottom: 2.5rem;
}

.page-news__main .section-title {
  font-family: var(--sans);
  font-size: 2rem;
  font-weight: 900;
  color: var(--ink);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}

.page-news__main .section-sub {
  font-family: var(--serif);
  font-size: 0.9375rem;
  color: var(--gray);
  line-height: 1.7;
  margin: 0;
}

/* 时间线移动优先 */
.page-news__timeline {
  position: relative;
  padding-left: 1.75rem;
}

.page-news__timeline::before {
  content: '';
  position: absolute;
  left: 0.375rem;
  top: 0.625rem;
  bottom: 0.625rem;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold), var(--gray));
  opacity: 0.55;
}

.page-news__timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}

.page-news__timeline-item:last-child {
  margin-bottom: 0;
}

.page-news__timeline-node {
  position: absolute;
  left: -1.5rem;
  top: 1.375rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  border: 2px solid var(--ivory);
  z-index: 1;
  box-shadow: 0 0 0 3px var(--green);
}

.page-news__timeline-node--gold {
  background: var(--gold);
}

.page-news__timeline-node--green {
  background: var(--moss-color);
}

.page-news__timeline-node--clay {
  background: var(--clay);
}

.page-news__timeline-body {
  background: var(--card-glass);
  border: 1px solid var(--ln);
  border-left: 3px solid var(--ln);
  padding: 1.375rem 1.25rem 1.5rem;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news__timeline-body:hover {
  border-color: var(--gold);
  transform: translateX(0.25rem);
}

.page-news__item-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.875rem;
}

.page-news__tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.625rem;
  border-radius: 2px;
  line-height: 1.4;
}

.page-news__tag--version {
  background: var(--tag-version-bg);
  color: var(--gold);
}

.page-news__tag--feature {
  background: var(--tag-feature-bg);
  color: var(--moss-color);
}

.page-news__tag--rebuild {
  background: var(--tag-rebuild-bg);
  color: var(--clay);
}

.page-news__version {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--mut);
  letter-spacing: 0.02em;
}

.page-news__timeline-body h3 {
  font-family: var(--sans);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--ivory);
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.page-news__timeline-body > p {
  font-family: var(--serif);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mut);
  margin: 0 0 1.25rem;
}

.page-news__item-media {
  margin: 0 0 1.25rem;
  border: 1px solid var(--ln);
  background: rgba(18, 18, 18, 0.3);
  overflow: hidden;
}

.page-news__item-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__item-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--gold);
  text-decoration: none;
  transition: gap 0.3s var(--ease), color 0.3s var(--ease);
}

.page-news__item-link:hover {
  gap: 0.75rem;
  color: var(--glow);
}

/* 订阅区 */
.page-news__subscribe {
  position: relative;
  background: var(--carbon);
  overflow: hidden;
  padding: 3rem 0;
}

.page-news__subscribe::before {
  content: '';
  position: absolute;
  top: -7rem;
  right: -5rem;
  width: 18rem;
  height: 18rem;
  border: 1px solid var(--ln);
  border-radius: 50%;
  opacity: 0.35;
  pointer-events: none;
}

.page-news__subscribe::after {
  content: '';
  position: absolute;
  bottom: -4rem;
  left: -4rem;
  width: 12rem;
  height: 12rem;
  border: 1px solid rgba(201, 164, 74, 0.15);
  border-radius: 50%;
  pointer-events: none;
}

.page-news__subscribe-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.page-news__subscribe-copy .section-title {
  font-family: var(--sans);
  font-size: 1.875rem;
  font-weight: 900;
  color: var(--ivory);
  margin: 0 0 0.875rem;
  letter-spacing: 0.02em;
}

.page-news__subscribe-copy p {
  font-family: var(--serif);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mut);
  margin: 0;
  max-width: 34rem;
}

.page-news__subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-news__subscribe-actions .btn {
  padding: 0.75rem 1.75rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-news__subscribe-actions .btn-primary {
  background: var(--gold);
  color: var(--green);
  border: 1px solid var(--gold);
}

.page-news__subscribe-actions .btn-primary:hover {
  background: var(--glow);
  border-color: var(--glow);
}

.page-news__subscribe-actions .btn-ghost {
  background: transparent;
  color: var(--ivory);
  border: 1px solid var(--ln);
}

.page-news__subscribe-actions .btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* 桌面端 ≥901px */
@media (min-width: 901px) {
  .page-news__hero {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 3rem), 0 100%);
    padding: 4rem 0 6.5rem;
  }

  .page-news__hero-inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 3.5rem;
  }

  .page-news__hero-copy h1 {
    font-size: clamp(2.5rem, 4.5vw, 3.75rem);
  }

  .page-news__hero-copy .lead {
    font-size: 1.125rem;
  }

  .page-news__hero-visual {
    height: 340px;
  }

  .page-news__hero-visual img {
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .page-news__hero-visual-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
  }

  .page-news__content {
    padding: 5rem 0 5.5rem;
  }

  .page-news__layout {
    grid-template-columns: 15rem 1fr;
    gap: 3.5rem;
    align-items: start;
  }

  .page-news__sidebar {
    position: sticky;
    top: 2rem;
    flex-direction: column;
    gap: 2rem;
  }

  .page-news__filter-list {
    display: block;
    gap: 0;
  }

  .page-news .filter-btn {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0.625rem 1rem;
  }

  .page-news .filter-btn:last-child {
    margin-bottom: 0;
  }

  .page-news__timeline {
    padding-left: 2.25rem;
  }

  .page-news__timeline::before {
    left: 0.5rem;
  }

  .page-news__timeline-node {
    left: -1.875rem;
    width: 0.875rem;
    height: 0.875rem;
  }

  .page-news__timeline-body {
    padding: 1.75rem 2rem 1.875rem;
  }

  .page-news__timeline-body h3 {
    font-size: 1.375rem;
  }

  .page-news__subscribe {
    padding: 4.5rem 0;
  }

  .page-news__subscribe-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
  }
}

/* 窄屏适配 ≤600px */
@media (max-width: 600px) {
  .page-news__hero {
    padding: 2.5rem 0 3.5rem;
  }

  .page-news__hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .page-news__meta-badge {
    width: 100%;
    justify-content: space-between;
  }

  .page-news__timeline {
    padding-left: 1.25rem;
  }

  .page-news__timeline::before {
    left: 0.3125rem;
  }

  .page-news__timeline-node {
    left: -1.0625rem;
    width: 0.625rem;
    height: 0.625rem;
    border-width: 2px;
    box-shadow: 0 0 0 2px var(--green);
  }

  .page-news__timeline-body {
    padding: 1rem 0.875rem 1.25rem;
    border-left-width: 2px;
  }

  .page-news__timeline-body h3 {
    font-size: 1.0625rem;
  }

  .page-news__timeline-body > p {
    font-size: 0.875rem;
  }

  .page-news__item-head {
    gap: 0.375rem 0.625rem;
  }

  .page-news__main .section-title {
    font-size: 1.625rem;
  }

  .page-news__subscribe-copy .section-title {
    font-size: 1.5rem;
  }
}