.page-news {
  --news-gap: clamp(3rem, 8vw, 6rem);
  --label-w: 52px;
  --node-w: 20px;
  --node-gap: 12px;
  color: var(--c-white);
  background: var(--c-bg);
}

/* ========== Hero ========== */
.page-news-hero {
  position: relative;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  z-index: 0;
}

.page-news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, transparent 42%, rgba(0, 166, 81, 0.06) 42%, rgba(255, 107, 0, 0.04) 100%);
  clip-path: polygon(100% 0, 100% 100%, 12% 100%);
  pointer-events: none;
  z-index: -1;
}

.page-news-hero > .container {
  position: relative;
}

.page-news-hero-grid {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.75rem;
}

.page-news-hero-main h1 {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0.75rem 0 0.875rem;
  position: relative;
}

.page-news-hero-main h1::after {
  content: "";
  display: block;
  width: 132px;
  height: 6px;
  margin-top: 10px;
  background: linear-gradient(90deg, var(--c-green) 0%, var(--c-green) 55%, var(--c-orange) 55%, var(--c-orange) 100%);
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 0 100%);
}

.page-news-hero-tag {
  margin-left: 0.75rem;
  vertical-align: middle;
}

.page-news-hero-lead {
  color: var(--c-gray);
  font-size: 0.9375rem;
  line-height: 1.8;
  max-width: 60ch;
  margin: 0 0 1.25rem;
}

.page-news-hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-news-hero-stat {
  background: var(--c-surface);
  padding: 1rem 1.125rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.page-news-hero-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.375rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--c-data);
  line-height: 1;
}

.page-news-hero-stat-label {
  font-size: 0.75rem;
  color: var(--c-gray);
}

/* ========== 区块通用 ========== */
.page-news-section-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.page-news-section-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-green);
  border: 1px solid var(--c-line);
  padding: 0.25rem 0.5rem;
  line-height: 1;
}

.page-news section h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 900;
  line-height: 1.2;
  margin: 0.375rem 0 0.75rem;
}

.page-news-section-desc {
  color: var(--c-gray);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 72ch;
  margin-bottom: 1.5rem;
}

.page-news img {
  max-width: 100%;
  display: block;
}

/* ========== 01 最新发布 ========== */
.page-news-latest {
  padding: var(--news-gap) 0;
  background: linear-gradient(180deg, transparent, rgba(0, 166, 81, 0.04) 50%, transparent);
}

.page-news-latest-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.page-news-latest-media {
  aspect-ratio: 12 / 7;
  overflow: hidden;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
}

.page-news-latest-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news-latest-panel {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-green);
  padding: 1.5rem;
}

.page-news-latest-panel h3 {
  font-size: 1.25rem;
  font-weight: 900;
  margin: 0.875rem 0 0.625rem;
}

.page-news-latest-panel p {
  color: var(--c-gray);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 0 0 1rem;
}

.page-news-latest-panel strong {
  color: var(--c-white);
  font-weight: 700;
}

.page-news-feature-list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-news-feature-list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--c-gray);
  font-size: 0.875rem;
  line-height: 1.5;
}

.page-news-feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.375rem;
  width: 6px;
  height: 6px;
  transform: rotate(45deg);
  background: var(--c-orange);
}

/* ========== 02 版本记录 ========== */
.page-news-versions {
  padding: var(--news-gap) 0;
}

.page-news-timeline {
  --label-w: 48px;
  --node-w: 18px;
  --node-gap: 10px;
  position: relative;
  margin-top: 2rem;
  display: grid;
  gap: 1.5rem;
}

.page-news-timeline::before {
  content: "";
  position: absolute;
  left: calc(var(--label-w) + var(--node-gap) + var(--node-w) / 2);
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--c-line) 0 6px, transparent 6px 12px);
  transform: translateX(-1px);
}

.page-news-timeline-item {
  display: grid;
  grid-template-columns: var(--label-w) var(--node-w) 1fr;
  gap: var(--node-gap);
  align-items: start;
  position: relative;
}

.page-news-timeline-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--c-green);
  background: rgba(0, 166, 81, 0.08);
  border: 1px solid var(--c-line);
  padding: 0.5rem 0.25rem;
}

.page-news-timeline-label.label-current {
  color: var(--c-orange);
  background: rgba(255, 107, 0, 0.1);
  border-color: rgba(255, 107, 0, 0.45);
}

.page-news-timeline-node {
  width: 12px;
  height: 12px;
  transform: rotate(45deg);
  background: var(--c-green);
  border: 2px solid var(--c-bg);
  box-shadow: 0 0 0 1px var(--c-green);
  justify-self: center;
  margin-top: 1.125rem;
}

.page-news-timeline-node-current {
  background: var(--c-orange);
  box-shadow: 0 0 0 1px var(--c-orange);
}

.page-news-timeline-card {
  padding: 1.25rem;
  transition: transform var(--ts-slow), border-color var(--ts-slow), box-shadow var(--ts-slow);
}

.page-news-timeline-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 166, 81, 0.5);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.page-news-timeline-card h3 {
  font-size: 1.125rem;
  font-weight: 900;
  margin: 0.625rem 0 0.5rem;
}

.page-news-timeline-card p {
  color: var(--c-gray);
  font-size: 0.875rem;
  line-height: 1.75;
  margin: 0;
}

.page-news-timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.875rem;
}

/* 展开组件 */
.page-news-expand {
  margin-top: 0.875rem;
  border-top: 1px dashed var(--c-line);
  padding-top: 0.875rem;
}

.page-news-expand summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-data);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  user-select: none;
}

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

.page-news-expand summary::before {
  content: "+";
  display: block;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border: 1px solid var(--c-line);
  text-align: center;
  line-height: 16px;
  font-size: 0.75rem;
  color: var(--c-orange);
}

.page-news-expand[open] summary::before {
  content: "−";
  line-height: 15px;
}

.page-news-expand-list {
  margin: 0.75rem 0 0;
  padding-left: 1.125rem;
  display: grid;
  gap: 0.375rem;
}

.page-news-expand-list li {
  color: var(--c-gray);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* 版本对比 */
.page-news-versions-note {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  padding: 1.25rem;
}

.page-news-versions-note-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--c-surface-alt);
}

.page-news-versions-note-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news-versions-note-text h3 {
  font-size: 1.125rem;
  font-weight: 900;
  margin: 0 0 0.5rem;
}

.page-news-versions-note-text p {
  color: var(--c-gray);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
}

.page-news-link {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--c-green);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 166, 81, 0.4);
  padding-bottom: 0.125rem;
  transition: border-color var(--ts-fast), color var(--ts-fast);
}

.page-news-link:hover {
  color: var(--c-data);
  border-color: var(--c-data);
}

/* ========== 03 数据服务公告 ========== */
.page-news-announcements {
  padding: var(--news-gap) 0;
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-news-announcements .page-news-section-desc,
.page-news-announcements .section-label,
.page-news-announcements .section-label::before {
  color: var(--c-gray);
}

.page-news-announce-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.page-news-announce-media {
  aspect-ratio: 5 / 4;
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
}

.page-news-announce-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news-announce-panel {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  padding: 1.25rem;
}

/* 筛选 */
.page-news-filter-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-news-filter-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.page-news-filter-labels label {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--c-line);
  color: var(--c-gray);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  user-select: none;
  transition: all var(--ts-fast);
}

.page-news-filter-labels label:hover {
  color: var(--c-white);
  border-color: var(--c-green);
}

.page-news-filter-input#filter-all:checked ~ .page-news-filter-labels label[for="filter-all"],
.page-news-filter-input#filter-data:checked ~ .page-news-filter-labels label[for="filter-data"],
.page-news-filter-input#filter-feature:checked ~ .page-news-filter-labels label[for="filter-feature"] {
  background: var(--c-green);
  color: var(--c-bg);
  border-color: var(--c-green);
}

.page-news-filter-input#filter-data:checked ~ .page-news-announce-list .page-news-announce-item:not(.page-news-cat-data),
.page-news-filter-input#filter-feature:checked ~ .page-news-announce-list .page-news-announce-item:not(.page-news-cat-feature) {
  display: none;
}

.page-news-announce-list {
  display: grid;
  gap: 0.75rem;
}

.page-news-announce-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  padding: 1rem 1.125rem;
  transition: border-color var(--ts-fast), box-shadow var(--ts-fast);
}

.page-news-announce-item:hover {
  border-color: var(--c-green);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.page-news-announce-item h3 {
  font-size: 1rem;
  font-weight: 900;
  margin: 0.5rem 0 0.25rem;
}

.page-news-announce-item p {
  color: var(--c-gray);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0;
}

/* ========== 04 行业洞察 ========== */
.page-news-insights {
  padding: var(--news-gap) 0;
}

.page-news-insight-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.page-news-insight-card {
  overflow: hidden;
  transition: transform var(--ts-slow), box-shadow var(--ts-slow);
}

.page-news-insight-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.page-news-insight-media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--c-surface-alt);
}

.page-news-insight-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news-insight-body {
  padding: 1.25rem;
}

.page-news-insight-body h3 {
  font-size: 1.0625rem;
  font-weight: 900;
  margin: 0.5rem 0 0.375rem;
}

.page-news-insight-body p {
  color: var(--c-gray);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0 0 0.5rem;
}

.page-news-insight-side {
  display: grid;
  gap: 1rem;
  align-content: start;
}

/* ========== 响应式 ========== */
@media (min-width: 768px) {
  .page-news-hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
    gap: 2.5rem;
  }

  .page-news-latest-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: stretch;
  }

  .page-news-announce-grid {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: start;
  }

  .page-news-versions-note {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 1.5rem;
  }

  .page-news-insight-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }

  .page-news-timeline {
    --label-w: 80px;
    --node-w: 24px;
    --node-gap: 16px;
    gap: 2rem;
  }

  .page-news-timeline-card {
    padding: 1.5rem;
  }

  .page-news-hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-news-timeline {
    --label-w: 120px;
  }

  .page-news-timeline-item {
    grid-template-columns: var(--label-w) var(--node-w) minmax(0, 720px);
  }

  .page-news-timeline::before {
    left: calc(var(--label-w) + var(--node-gap) + var(--node-w) / 2);
  }
}