.page-news {
  --news-line: rgba(138, 155, 171, 0.28);
  --news-num-stroke: rgba(138, 155, 171, 0.55);
  --news-track: rgba(138, 155, 171, 0.16);
  --news-accent-soft: rgba(0, 255, 136, 0.1);
  --news-alert-soft: rgba(255, 107, 0, 0.14);
  --news-card: rgba(24, 42, 61, 0.72);
  padding-bottom: 48px;
}

.page-news section[id] {
  scroll-margin-top: calc(var(--header-h) + var(--header-offset) + 16px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: 32px;
}

.page-news .news-hero-frame {
  position: relative;
  display: grid;
  gap: 24px;
  margin-top: 24px;
  padding: 24px;
}

.page-news .news-hero-copy .section-label {
  color: var(--accent);
  letter-spacing: 0.12em;
}

.page-news .news-hero-copy .page-title {
  margin: 10px 0 14px;
}

.page-news .news-hero-copy .page-lead {
  max-width: 620px;
  margin: 0;
  color: var(--text-body);
}

.page-news .news-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-news .news-hero-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
}

.page-news .news-hero-visual::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -25%;
  width: 25%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.09), transparent);
  animation: news-line-scan 4.2s var(--ease) infinite;
  pointer-events: none;
}

.page-news .news-hero-visual .image-frame {
  margin: 0;
}

.page-news .image-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .image-caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

@keyframes news-line-scan {
  0% { left: -25%; }
  55% { left: 110%; }
  100% { left: 110%; }
}

/* ---------- 章节索引 ---------- */
.page-news .news-index {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 24px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .news-index-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg-main);
  color: var(--text-body);
  font-size: 15px;
  text-decoration: none;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.page-news .news-index-item:hover {
  background: var(--bg-panel);
  color: var(--text-strong);
}

.page-news .news-index-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border: 1px solid var(--news-line);
  border-radius: 50%;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--accent);
}

/* ---------- 版本发布 ---------- */
.page-news .news-release {
  margin-top: 80px;
}

.page-news .release-grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.page-news .release-panel {
  position: relative;
  padding: 26px 24px 22px;
  background: var(--bg-panel);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
}

.page-news .release-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--alert));
  border-radius: 0 0 var(--radius-pill) var(--radius-pill);
}

.page-news .release-version-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.page-news .release-version-tag {
  padding: 4px 12px;
  background: var(--accent);
  color: var(--bg-main);
  border-radius: var(--radius-pill);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-news .release-version-num {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--text-strong);
}

.page-news .release-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .release-points li {
  position: relative;
  padding-left: 18px;
  color: var(--text-body);
  line-height: 1.6;
}

.page-news .release-points li::before {
  content: '';
  position: absolute;
  top: 9px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--news-accent-soft);
}

.page-news .release-stage {
  position: relative;
  padding: 24px;
  background: var(--news-card);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
}

.page-news .release-stage h3 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-strong);
}

.page-news .stage-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .stage-list li {
  display: grid;
  grid-template-columns: 56px 1fr 42px;
  align-items: center;
  gap: 12px;
}

.page-news .stage-name {
  font-size: 14px;
  color: var(--text-body);
}

.page-news .stage-bar {
  display: block;
  height: 6px;
  background: var(--news-track);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.page-news .stage-bar span {
  display: block;
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-pill);
}

.page-news .stage-state {
  font-family: var(--font-data);
  font-size: 12px;
  text-align: right;
  white-space: nowrap;
  color: var(--accent);
}

/* ---------- 更新记录 ---------- */
.page-news .news-feed {
  margin-top: 80px;
}

.page-news .feed-area {
  position: relative;
  margin-top: 28px;
}

.page-news .feed-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .feed-layout {
  display: grid;
  gap: 20px;
}

.page-news .feed-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px;
  background: var(--news-card);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
}

.page-news .feed-filter-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-basis: 100%;
  margin: 0 0 2px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.page-news .feed-filter-title .status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.page-news .feed-filter-label {
  position: relative;
  padding: 8px 16px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-pill);
  font-size: 14px;
  color: var(--text-body);
  cursor: pointer;
  user-select: none;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}

.page-news .feed-filter-label:hover {
  border-color: var(--accent);
  color: var(--text-strong);
}

.page-news #nf-all:checked ~ .feed-layout .feed-filter label[for="nf-all"],
.page-news #nf-opt:checked ~ .feed-layout .feed-filter label[for="nf-opt"],
.page-news #nf-data:checked ~ .feed-layout .feed-filter label[for="nf-data"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-main);
  font-weight: 600;
}

.page-news #nf-opt:checked ~ .feed-layout .feed-entry--data,
.page-news #nf-opt:checked ~ .feed-layout .feed-group-title--data,
.page-news #nf-data:checked ~ .feed-layout .feed-entry--opt,
.page-news #nf-data:checked ~ .feed-layout .feed-group-title--opt {
  display: none;
}

.page-news .feed-stream {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-news .feed-group-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-strong);
}

.page-news .feed-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--news-line);
}

.page-news .feed-entry {
  display: flex;
  gap: 16px;
  padding: 20px 18px;
  background: var(--news-card);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .feed-entry:hover {
  border-color: rgba(0, 255, 136, 0.45);
  background: var(--bg-panel);
  transform: translateY(-2px);
}

.page-news .feed-entry-num {
  flex-shrink: 0;
  min-width: 48px;
  font-family: var(--font-data);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--text-dim);
}

.page-news .feed-entry-num::before {
  content: '';
  display: block;
  width: 22px;
  height: 1px;
  margin-bottom: 10px;
  background: var(--accent);
}

@supports (-webkit-text-stroke: 1px #000) {
  .page-news .feed-entry-num {
    color: transparent;
    -webkit-text-stroke: 1px var(--news-num-stroke);
  }
}

.page-news .feed-entry:hover .feed-entry-num {
  -webkit-text-stroke-color: var(--accent);
}

.page-news .feed-entry-body {
  min-width: 0;
  flex: 1;
}

.page-news .feed-entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.page-news .feed-entry-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--news-accent-soft);
  border: 1px solid rgba(0, 255, 136, 0.22);
  border-radius: var(--radius-pill);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.page-news .feed-status {
  margin-left: auto;
  padding: 3px 10px;
  border: 1px dashed var(--news-line);
  border-radius: var(--radius-pill);
  font-family: var(--font-data);
  font-size: 12px;
  white-space: nowrap;
  color: var(--text-dim);
}

.page-news .feed-status--legacy {
  background: var(--news-alert-soft);
  border-color: rgba(255, 107, 0, 0.35);
  color: var(--alert);
}

.page-news .feed-entry-body h4 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-strong);
}

.page-news .feed-entry-body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-body);
}

.page-news .feed-entry-body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(0, 255, 136, 0.5);
  text-underline-offset: 3px;
}

.page-news .feed-progress {
  display: block;
  height: 4px;
  background: var(--news-track);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.page-news .feed-progress span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--success), var(--accent));
  border-radius: var(--radius-pill);
}

.page-news .feed-visual {
  margin: 24px 0 0;
}

.page-news .feed-visual .image-frame {
  margin-bottom: 10px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ---------- 数据服务更新 ---------- */
.page-news .news-data {
  margin-top: 88px;
  padding: 36px 0 44px;
  border-top: 1px solid var(--news-line);
  border-bottom: 1px solid var(--news-line);
  background:
    linear-gradient(180deg, transparent, rgba(0, 255, 136, 0.04)),
    repeating-linear-gradient(45deg, rgba(138, 155, 171, 0.05) 0 2px, transparent 2px 14px);
}

.page-news .data-layout {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.page-news .data-visual .image-frame {
  margin: 0;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .data-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 0;
}

.page-news .data-stat {
  padding: 18px 16px;
  background: var(--news-card);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-md);
}

.page-news .data-stat dt {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.page-news .data-stat dd {
  margin: 10px 0 4px;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

.page-news .data-stat p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-body);
}

/* ---------- 专题栏目 ---------- */
.page-news .news-topics {
  margin-top: 88px;
}

.page-news .topics-cover {
  margin: 28px 0 0;
}

.page-news .topics-cover .image-frame {
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .topics-cover .image-caption {
  margin-top: 10px;
}

.page-news .topics-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-news .topic-card {
  position: relative;
  padding: 24px;
  background: var(--news-card);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .topic-card:hover {
  border-color: rgba(255, 107, 0, 0.5);
  background: var(--bg-panel);
  transform: translateY(-2px);
}

.page-news .topic-card:first-child {
  border-top: 3px solid var(--accent);
}

.page-news .topic-card:last-child {
  border-top: 3px solid var(--alert);
}

.page-news .topic-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.page-news .topic-card-num {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-news .topic-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--text-strong);
}

.page-news .topic-card p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-body);
}

/* ---------- 桌面断点 ---------- */
@media (min-width: 900px) {
  .page-news .news-hero {
    padding-top: 40px;
  }

  .page-news .news-hero-frame {
    grid-template-columns: 5fr 7fr;
    align-items: center;
    gap: 32px;
    padding: 36px;
  }

  .page-news .news-index {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-news .news-release {
    margin-top: 96px;
  }

  .page-news .release-grid {
    grid-template-columns: 7fr 5fr;
    align-items: stretch;
  }

  .page-news .release-panel {
    padding: 32px 28px 26px;
  }

  .page-news .release-stage {
    padding: 28px;
  }

  .page-news .news-feed {
    margin-top: 96px;
  }

  .page-news .feed-layout {
    grid-template-columns: 208px 1fr;
    align-items: start;
    gap: 24px;
  }

  .page-news .feed-filter {
    position: sticky;
    top: calc(var(--header-h) + var(--header-offset) + 12px);
    flex-direction: column;
    align-items: stretch;
  }

  .page-news .feed-filter-title {
    flex-basis: auto;
  }

  .page-news .feed-filter-label {
    text-align: center;
  }

  .page-news .feed-entry {
    padding: 24px 28px;
    gap: 22px;
  }

  .page-news .feed-entry-num {
    font-size: 50px;
  }

  .page-news .news-data {
    margin-top: 104px;
    padding: 44px 0 52px;
  }

  .page-news .data-layout {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 36px;
  }

  .page-news .news-topics {
    margin-top: 96px;
  }

  .page-news .topics-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

@media (min-width: 1280px) {
  .page-news .data-stat {
    padding: 20px;
  }

  .page-news .data-stat dd {
    font-size: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-hero-visual::after {
    animation: none;
  }

  .page-news .feed-entry,
  .page-news .topic-card,
  .page-news .news-index-item {
    transition: none;
  }
}