.page-news {
  --rail-w: 236px;
  --card-pad: 1.25rem;
  --rule-green: rgba(57, 255, 20, 0.12);
  --rule-orange: rgba(255, 107, 53, 0.16);
  --rule-line: rgba(30, 58, 95, 0.45);
  padding: 1.5rem 0 6rem;
  position: relative;
}

.page-news .breadcrumb {
  margin-bottom: 1.5rem;
  font-family: var(--font-data);
  font-size: 0.82rem;
}

.page-news__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

/* ===== 左侧栏目索引 ===== */
.page-news__rail {
  background:
    linear-gradient(160deg, rgba(57, 255, 20, 0.05), transparent 55%),
    var(--bg-panel);
  border: 1px solid var(--bg-line);
  border-left: 3px solid var(--accent-green);
  padding: 1.1rem;
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-news__rail::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, transparent 50%, rgba(57, 255, 20, 0.55) 50%);
}

.page-news__rail-title {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-green);
  margin: 0 0 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule-line);
}

.page-news__rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
}

.page-news__rail-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.7rem 0.3rem;
  background: rgba(17, 34, 64, 0.7);
  border: 1px solid var(--bg-line);
  color: var(--text-light);
  text-decoration: none;
  text-align: center;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news__rail-link:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  transform: translateY(-2px);
}

.page-news__rail-num {
  font-family: var(--font-data);
  font-size: 0.68rem;
  color: var(--accent-green);
}

.page-news__rail-name {
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.3;
}

.page-news__rail-note {
  margin: 0.9rem 0 0;
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.6;
  border-top: 1px solid var(--rule-line);
  padding-top: 0.7rem;
}

.page-news__rail-link.is-active {
  border-left: 3px solid var(--accent-green);
  background: rgba(57, 255, 20, 0.06);
  color: var(--accent-green);
}

/* ===== 右侧内容 ===== */
.page-news__content {
  min-width: 0;
}

.page-news__content [id] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

/* 期刊题头 */
.page-news .journal-masthead {
  position: relative;
  padding: 1.25rem 0 2.25rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--bg-line);
  overflow: hidden;
}

.page-news .journal-masthead::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 130px;
  height: 3px;
  background: var(--accent-green);
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
}

.page-news .journal-masthead__trace {
  position: absolute;
  right: -20px;
  top: 10px;
  width: 240px;
  height: auto;
  opacity: 0.8;
  pointer-events: none;
}

.page-news .journal-masthead__label {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-green);
  margin: 0 0 0.6rem;
}

.page-news .journal-masthead__title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  font-weight: 800;
  line-height: 1.14;
  color: var(--text-light);
  margin: 0 0 1rem;
  max-width: 15em;
}

.page-news .journal-masthead__lead {
  color: var(--text-muted);
  line-height: 1.85;
  margin: 0;
  max-width: 44em;
  font-size: 0.98rem;
}

/* 章节标题组合 */
.page-news .section-block {
  margin-bottom: 4.5rem;
}

.page-news .section-head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 0.7rem;
}

.page-news .section-index {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--accent-green);
  border: 1px solid var(--accent-green);
  padding: 0.2em 0.6em;
  transform: skewX(-10deg);
  background: rgba(57, 255, 20, 0.04);
  white-space: nowrap;
}

.page-news .section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 700;
  color: var(--text-light);
  margin: 0;
  letter-spacing: 0.02em;
}

.page-news .diag-rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--bg-line), transparent);
  min-width: 2rem;
}

.page-news .section-lede {
  color: var(--text-muted);
  line-height: 1.8;
  margin: 0 0 1.6rem;
  max-width: 46em;
  font-size: 0.95rem;
}

/* ===== 本周条目 ===== */
.page-news .entry-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background:
    linear-gradient(180deg, rgba(17, 34, 64, 0.92), var(--bg-panel) 42%),
    var(--bg-panel);
  border: 1px solid var(--bg-line);
  margin-bottom: 1.4rem;
  padding: var(--card-pad);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .entry-card::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
}

.page-news .entry-card--shot::before {
  background: var(--accent-green);
}

.page-news .entry-card--v4::before {
  background: var(--accent-orange);
}

.page-news .entry-card--adapter::before {
  background: var(--accent-green);
}

.page-news .entry-card:hover {
  border-color: rgba(57, 255, 20, 0.38);
  box-shadow: var(--shadow-panel), 0 0 0 1px rgba(57, 255, 20, 0.12);
  transform: translateY(-3px);
}

.page-news .entry-card--v4:hover {
  border-color: rgba(255, 107, 53, 0.42);
  box-shadow: var(--shadow-panel), 0 0 0 1px rgba(255, 107, 53, 0.14);
}

.page-news .entry-card__aside {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  padding-bottom: 0.85rem;
  margin-bottom: 1rem;
  border-bottom: 1px dashed var(--rule-line);
}

.page-news .entry-card__version {
  font-family: var(--font-data);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-light);
}

.page-news .entry-card--v4 .entry-card__version {
  color: var(--accent-orange);
}

.page-news .entry-card__code {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--text-muted);
  border: 1px solid var(--bg-line);
  padding: 0.15em 0.55em;
  letter-spacing: 0.06em;
}

.page-news .entry-card__rail {
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-left: auto;
}

.page-news .entry-card--v4 .entry-card__rail {
  color: var(--accent-orange);
}

.page-news .entry-card__content {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-width: 0;
}

.page-news .entry-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.8rem;
}

.page-news .entry-card__date {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.page-news .entry-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  font-weight: 700;
  color: var(--text-light);
  margin: 0;
  line-height: 1.35;
}

.page-news .entry-card__summary {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.8;
  margin: 0;
  max-width: 52em;
}

.page-news .entry-card__figure {
  margin: 0.25rem 0 0;
}

.page-news .entry-card__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--bg-line);
  object-fit: cover;
}

.page-news .entry-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-news .entry-card__action {
  margin: 0.1rem 0 0;
}

.page-news .tag--green {
  background: rgba(57, 255, 20, 0.08);
  border-color: rgba(57, 255, 20, 0.3);
  color: var(--accent-green);
}

/* ===== 专题系列 ===== */
.page-news .topics-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.3rem;
}

.page-news .topic-card {
  position: relative;
  background:
    linear-gradient(200deg, rgba(57, 255, 20, 0.04), transparent 42%),
    var(--bg-panel);
  border: 1px solid var(--bg-line);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-news .topic-card:hover {
  border-color: rgba(57, 255, 20, 0.32);
  box-shadow: var(--shadow-panel);
}

.page-news .topic-card__body {
  padding: var(--card-pad);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-width: 0;
  height: 100%;
}

.page-news .topic-card__series {
  font-family: var(--font-data);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--accent-orange);
  background: var(--rule-orange);
  border-left: 3px solid var(--accent-orange);
  padding: 0.3em 0.7em;
  transform: skewX(-8deg);
  align-self: flex-start;
  margin: 0;
}

.page-news .topic-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 700;
  color: var(--text-light);
  margin: 0;
  line-height: 1.35;
}

.page-news .topic-card__summary {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.78;
  margin: 0;
}

.page-news .topic-card__figure {
  margin: 0.25rem 0 0;
}

.page-news .topic-card__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--bg-line);
  object-fit: cover;
}

.page-news .topic-card__more {
  margin: 0.4rem 0 0;
}

.page-news .topic-card__more .text-link {
  font-weight: 500;
}

/* 专题 03 宽幅卡片 */
.page-news .topic-card--accent {
  border-left: 3px solid var(--accent-orange);
}

.page-news .topic-card--accent::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 107, 53, 0.4) 50%);
}

/* ===== 往期归档 ===== */
.page-news .archive-strip {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 0.25rem 0.25rem 1.25rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: var(--bg-line) transparent;
  outline: none;
}

.page-news .archive-strip:focus-visible {
  box-shadow: 0 0 0 2px rgba(57, 255, 20, 0.4);
}

.page-news .archive-season {
  flex: 0 0 248px;
  scroll-snap-align: start;
  background: var(--bg-panel);
  border: 1px solid var(--bg-line);
  border-top: 3px solid var(--accent-green);
  padding: 1.1rem 1.2rem 1.3rem;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news .archive-season:hover {
  border-top-color: var(--accent-green);
  transform: translateY(-4px);
}

.page-news .archive-season:nth-child(even) {
  border-top-color: var(--accent-orange);
}

.page-news .archive-season:nth-child(even):hover {
  border-top-color: var(--accent-orange);
}

.page-news .archive-season__title {
  font-family: var(--font-data);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-light);
  margin: 0 0 0.7rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--rule-line);
}

.page-news .archive-season__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .archive-season__list li {
  position: relative;
  padding: 0.42rem 0 0.42rem 1.15rem;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.55;
  border-bottom: 1px dashed rgba(30, 58, 95, 0.3);
}

.page-news .archive-season__list li:last-child {
  border-bottom: 0;
}

.page-news .archive-season__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--accent-green);
}

.page-news .archive-season:nth-child(even) .archive-season__list li::before {
  color: var(--accent-orange);
}

/* 浅色信任面板 */
.page-news .archive-trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-top: 1.6rem;
  padding: 1.6rem 1.4rem;
  box-shadow: 0 10px 30px rgba(2, 8, 20, 0.35);
}

.page-news .archive-trust p {
  margin: 0;
  max-width: 50em;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--bg-ink);
}

.page-news .archive-trust .archive-trust__action {
  white-space: nowrap;
}

.page-news .archive-trust .text-link {
  color: var(--bg-ink);
  border-bottom-color: var(--bg-ink);
  font-weight: 600;
}

/* ===== 宽度 ≥ 640px ===== */
@media (min-width: 640px) {
  .page-news__rail-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .archive-trust {
    flex-direction: row;
  }
}

/* ===== 宽度 ≥ 1024px ===== */
@media (min-width: 1024px) {
  .page-news {
    padding-top: 2rem;
  }

  .page-news__layout {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: 3rem;
  }

  .page-news__rail {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
    padding: 1.3rem;
  }

  .page-news__rail-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.4rem;
  }

  .page-news__rail-link {
    flex-direction: row;
    align-items: baseline;
    justify-content: flex-start;
    gap: 0.7rem;
    padding: 0.6rem 0.7rem;
    background: transparent;
    border: 1px solid transparent;
    text-align: left;
  }

  .page-news__rail-link:hover {
    background: rgba(57, 255, 20, 0.05);
    border-color: var(--bg-line);
    transform: translateX(3px);
  }

  .page-news__rail-link.is-active {
    border-left-color: var(--accent-green);
    border-top-color: var(--bg-line);
    border-right-color: var(--bg-line);
    border-bottom-color: var(--bg-line);
  }

  .page-news__rail-note {
    text-align: left;
  }

  .page-news .journal-masthead__trace {
    width: 340px;
    right: -10px;
  }

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

  /* 条目卡片桌面版式 */
  .page-news .entry-card {
    grid-template-columns: 168px minmax(0, 1fr);
    padding: 0;
  }

  .page-news .entry-card__aside {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.45rem;
    margin: 0;
    padding: 1.4rem 1.1rem;
    border-bottom: 0;
    border-right: 1px dashed var(--rule-line);
    background:
      linear-gradient(180deg, rgba(57, 255, 20, 0.04), transparent 70%),
      rgba(10, 25, 47, 0.5);
  }

  .page-news .entry-card--v4 .entry-card__aside {
    background:
      linear-gradient(180deg, rgba(255, 107, 53, 0.05), transparent 70%),
      rgba(10, 25, 47, 0.5);
  }

  .page-news .entry-card__rail {
    margin-left: 0;
    font-size: 0.66rem;
  }

  .page-news .entry-card__code {
    margin-top: 0.15rem;
  }

  .page-news .entry-card__content {
    padding: 1.4rem 1.5rem 1.5rem;
  }

  /* 专题混排 */
  .page-news .topics-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-news .topic-card--wide {
    grid-column: span 7;
  }

  .page-news .topic-card--plain {
    grid-column: span 5;
    background:
      linear-gradient(210deg, rgba(255, 107, 53, 0.05), transparent 50%),
      var(--bg-panel);
  }

  .page-news .topic-card--accent {
    grid-column: span 12;
  }

  .page-news .topic-card--accent .topic-card__body {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 2rem;
    align-items: center;
  }

  .page-news .topic-card--accent .topic-card__figure {
    margin: 0;
  }

  /* 归档卡片宽度 */
  .page-news .archive-season {
    flex-basis: 280px;
  }
}

/* ===== 宽屏 ≥ 1440px ===== */
@media (min-width: 1440px) {
  .page-news__layout {
    gap: 4rem;
  }

  .page-news .topic-card--wide {
    grid-column: span 7;
  }

  .page-news .topic-card--plain {
    grid-column: span 5;
  }

  .page-news .topic-card--accent .topic-card__body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }
}

/* ===== 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-news .entry-card,
  .page-news .topic-card,
  .page-news .archive-season,
  .page-news__rail-link {
    transition: none;
    transform: none;
  }
}