.page-news {
  --news-dim: #b6c2d4;
  --news-side: 240px;
}

/* 面包屑 */
.page-news .breadcrumb {
  padding-top: 20px;
  font-size: 13px;
}

/* 页首标题区 */
.page-news .news-masthead {
  padding: clamp(20px, 3vw, 36px) 0 clamp(28px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-masthead h1 {
  margin: 14px 0 0;
  font-size: clamp(40px, 8vw, 96px);
  line-height: 0.96;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-news .news-masthead__lede {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--news-dim);
}

/* 首屏数据带 */
.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 30px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-news .news-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-news .news-stats .stat {
  padding: 18px 18px 20px;
  background: var(--panel-2);
  border-top: 3px solid var(--accent, var(--cyan));
}

.page-news .news-stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--accent, var(--cyan));
}

.page-news .news-stats .stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* 氛围图 */
.page-news .news-ambient {
  margin: 30px 0 0;
  border: 1px solid var(--line);
  background: var(--panel-2);
  overflow: hidden;
}

.page-news .news-ambient img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  object-position: center;
}

/* 区块通用 */
.page-news .section {
  padding: clamp(44px, 6vw, 76px) 0 0;
}

.page-news .news-section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 18px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-section-head h2 {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .news-section-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-news .news-section-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
  }

  .page-news .news-section-head p {
    flex: 0 1 auto;
    max-width: 44ch;
    text-align: right;
  }
}

/* 本期精选 */
.page-news .featured {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

@media (min-width: 900px) {
  .page-news .featured {
    grid-template-columns: 5fr 4fr 3fr;
  }
}

.page-news .news-feature {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent, var(--cyan));
  box-shadow: 0 10px 0 rgba(4, 7, 12, 0.8), 0 20px 40px rgba(2, 4, 8, 0.45);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-news .news-feature__num {
  font-size: 40px;
  line-height: 1;
  color: var(--accent, var(--cyan));
  letter-spacing: -0.04em;
}

.page-news .news-feature h3 {
  margin: 0;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.35;
  font-weight: 800;
  color: var(--text);
}

.page-news .news-feature p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-dim);
}

.page-news .news-feature__foot {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* 浏览区布局 */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

@media (min-width: 1020px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-side) minmax(0, 1fr);
    gap: 44px;
  }
}

.page-news .news-aside {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

@media (min-width: 1020px) {
  .page-news .news-aside {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

.page-news .aside-block {
  padding: 18px 18px 20px;
  background: var(--panel-2);
  border: 1px solid var(--line);
}

.page-news .aside-block__title {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-news .aside-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .aside-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px dashed var(--line);
}

.page-news .aside-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .aside-list .mono {
  font-size: 13px;
  color: var(--muted);
}

.page-news .aside-link {
  display: block;
  padding: 10px 0 10px 12px;
  margin-bottom: 10px;
  border-left: 3px solid var(--accent, var(--cyan));
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  text-decoration: none;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-news .aside-link:last-child {
  margin-bottom: 0;
}

.page-news .aside-link span {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--muted);
}

.page-news .aside-link:hover {
  background: rgba(43, 227, 210, 0.07);
}

.page-news .aside-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel-2);
  overflow: hidden;
}

.page-news .aside-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.page-news .aside-figure__caption {
  padding: 10px 14px 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* 筛选栏 */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 0;
  margin-bottom: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}

@media (min-width: 1020px) {
  .page-news .filter-bar {
    position: sticky;
    top: var(--header-h);
    z-index: 5;
  }
}

.page-news .filter-btn {
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-news .filter-btn:hover {
  color: var(--text);
  border-color: var(--cyan);
}

.page-news .filter-btn[aria-pressed="true"],
.page-news .filter-btn.is-active {
  color: var(--on-accent);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* 卡片网格 */
.page-news .news-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  grid-auto-flow: dense;
}

@media (min-width: 700px) {
  .page-news .news-cards {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 20px;
  }

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

  .page-news .news-card--narrow {
    grid-column: span 2;
  }
}

.page-news [data-filter-item][hidden] {
  display: none;
}

.page-news .news-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent, var(--cyan));
  box-shadow: 0 8px 0 rgba(4, 7, 12, 0.75);
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-news .news-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-panel);
  border-color: var(--line-strong);
}

.page-news .news-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .news-card__top .tag {
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-news .news-card__time {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.page-news .news-card__title {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .news-card__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .news-card__excerpt {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--news-dim);
}

/* 折叠摘要 */
.page-news .disclosure {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-news .disclosure summary {
  list-style: none;
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent, var(--cyan));
  transition: opacity 0.18s var(--ease);
}

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

.page-news .disclosure summary::after {
  content: " ＋";
  font-family: var(--font-mono);
}

.page-news .disclosure[open] summary::after {
  content: " －";
}

.page-news .disclosure summary:hover {
  opacity: 0.78;
}

.page-news .disclosure__body {
  padding-top: 10px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* 专题区 */
.page-news .news-figure {
  margin: 0 0 24px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  overflow: hidden;
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
}

.page-news .news-figure--wide img {
  max-height: 260px;
}

.page-news .series-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

@media (min-width: 860px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px 22px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent, var(--gold));
  scroll-margin-top: 110px;
}

.page-news .series-card h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .series-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--news-dim);
}

.page-news .series-card__meta {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* 更新节奏 */
.page-news .cadence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 860px) {
  .page-news .cadence-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-news .cadence-item {
  padding: 22px 20px 24px;
  background: var(--panel);
  border-top: 3px solid var(--accent, var(--cyan));
}

.page-news .cadence-item p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--news-dim);
}

.page-news .cadence-cta {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 28px;
  padding: 24px 22px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
}

.page-news .cadence-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-news .cadence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 820px) {
  .page-news .cadence-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
  }

  .page-news .cadence-cta p {
    max-width: 60ch;
  }
}

/* 动效退化 */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    animation: none !important;
    transition: none !important;
  }
}