.page-news {
  background: var(--ai-paper);
  color: var(--ai-ink);
}

/* ===== Hero 区 ===== */
.page-news .page-news__hero {
  position: relative;
  padding: 1.5rem 0 3rem;
  overflow: hidden;
}

.page-news .page-news__hero::before {
  display: none;
}

.page-news .page-news__hero-grid {
  display: grid;
  gap: 2rem;
  position: relative;
  z-index: 1;
  padding-top: 1rem;
}

.page-news .page-news__hero-copy {
  max-width: 680px;
}

.page-news .page-news__title {
  font-size: 2.5rem;
  line-height: 1.12;
  margin: 0.75rem 0 1rem;
  border-left: 6px solid var(--ai-gold);
  padding-left: 1.25rem;
}

.page-news .page-news__hero-desc {
  font-size: 1.0625rem;
  line-height: 1.75;
  margin: 0 0 1.25rem;
}

.page-news .page-news__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news .page-news__hero-panel {
  background: var(--ai-charcoal);
  border: 3px solid var(--ai-ink);
  box-shadow: 8px 8px 0 var(--ai-gold);
  padding: 1.5rem;
  display: grid;
  gap: 0.75rem;
  align-self: start;
}

.page-news .page-news__hero-stat {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 1rem;
  border-bottom: 1px dashed var(--ai-gold-light);
  padding-bottom: 0.75rem;
}

.page-news .page-news__hero-stat:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .page-news__hero-stat-value {
  font-family: var(--ai-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ai-gold);
}

.page-news .page-news__hero-stat-label {
  font-family: var(--ai-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ai-cream);
}

/* ===== 分类过滤栏 ===== */
.page-news .page-news__filter {
  background: var(--ai-cream);
  border-top: 4px solid var(--ai-ink);
  border-bottom: 4px solid var(--ai-ink);
  padding: 1rem 0;
}

.page-news .page-news__filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

.page-news .page-news__filter-label {
  font-family: var(--ai-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ai-red);
  background: var(--ai-paper);
  border: 2px solid var(--ai-ink);
  padding: 0.3rem 0.6rem;
  white-space: nowrap;
}

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

.page-news .page-news__chip {
  font-family: var(--ai-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.45rem 0.9rem;
  border: 2px solid var(--ai-ink);
  background: var(--ai-cream);
  color: var(--ai-ink);
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(11, 61, 46, 0.8);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.page-news .page-news__chip:hover,
.page-news .page-news__chip:focus-visible {
  background: var(--ai-gold);
  outline: none;
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(11, 61, 46, 0.8);
}

.page-news .page-news__chip.is-active {
  background: var(--ai-gold);
  border-color: var(--ai-green);
  box-shadow: 1px 1px 0 rgba(11, 61, 46, 0.8);
  transform: translate(2px, 2px);
}

/* ===== 三列主布局 ===== */
.page-news .page-news__layout {
  padding: 2.5rem 0 4rem;
}

.page-news .page-news__grid {
  display: grid;
  gap: 2rem;
  grid-template-areas:
    "stream"
    "aside-left"
    "aside-right";
}

.page-news .page-news__grid > * {
  min-width: 0;
}

.page-news .page-news__aside--left {
  grid-area: aside-left;
}

.page-news .page-news__stream {
  grid-area: stream;
}

.page-news .page-news__aside--right {
  grid-area: aside-right;
}

/* ===== 侧边栏通用 ===== */
.page-news .page-news__aside {
  background: var(--ai-cream);
  border: 3px solid var(--ai-ink);
  box-shadow: var(--ai-shadow-soft);
  padding: 1.5rem;
}

.page-news .page-news__aside-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--ai-serif);
  font-size: 1.4rem;
  font-weight: 900;
  margin: 0 0 1.25rem;
  border-bottom: 3px solid var(--ai-ink);
  padding-bottom: 0.75rem;
}

.page-news .page-news__aside-code {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  flex: 0 0 2rem;
  background: var(--ai-gold);
  border: 2px solid var(--ai-ink);
  font-family: var(--ai-mono);
  font-size: 0.875rem;
  font-weight: 700;
}

/* ===== 左栏分类索引 ===== */
.page-news .page-news__index-group {
  margin-bottom: 1.75rem;
}

.page-news .page-news__index-title {
  font-family: var(--ai-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ai-red);
  margin: 0 0 0.4rem;
}

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

.page-news .page-news__index-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9375rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed var(--ai-ink);
}

.page-news .page-news__index-item:last-child {
  border-bottom: 0;
}

.page-news .page-news__index-item a {
  font-weight: 700;
  color: var(--ai-ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}

.page-news .page-news__index-item a:hover,
.page-news .page-news__index-item a:focus-visible {
  border-color: var(--ai-gold);
  outline: none;
}

.page-news .page-news__index-item span {
  font-family: var(--ai-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--ai-green-2);
}

.page-news .page-news__note {
  background: var(--ai-paper);
  border-left: 4px solid var(--ai-gold);
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  margin-top: 1.5rem;
}

.page-news .page-news__note p {
  margin: 0;
}

/* ===== 区块标题行 ===== */
.page-news .page-news__section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 3px solid var(--ai-ink);
  padding-bottom: 0.5rem;
}

.page-news .page-news__section-head .section-title {
  margin: 0;
}

.page-news .page-news__section-code {
  font-family: var(--ai-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ai-green-2);
  background: var(--ai-paper);
  border: 2px solid var(--ai-green);
  padding: 0.25rem 0.5rem;
  white-space: nowrap;
}

/* ===== 专题推荐 ===== */
.page-news .page-news__featured {
  margin-bottom: 3rem;
}

.page-news .page-news__featured-grid {
  display: grid;
  gap: 1.5rem;
}

.page-news .page-news__featured-card {
  border: 3px solid var(--ai-ink);
  box-shadow: var(--ai-shadow-hard);
  padding: 1.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-news .page-news__featured-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 rgba(11, 61, 46, 0.4);
}

.page-news .page-news__featured-card--green {
  background: var(--ai-green-2);
  color: var(--ai-cream);
}

.page-news .page-news__featured-card--gold {
  background: var(--ai-gold);
  color: var(--ai-ink);
}

.page-news .page-news__featured-card--green h3,
.page-news .page-news__featured-card--gold h3 {
  margin: 0;
  max-width: 34ch;
  font-size: 1.375rem;
  line-height: 1.35;
}

.page-news .page-news__featured-card--green p,
.page-news .page-news__featured-card--gold p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
}

.page-news .page-news__featured-content {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  flex: 1;
}

.page-news .page-news__featured-num {
  position: absolute;
  top: 0.75rem;
  right: 0.9rem;
  font-family: var(--ai-mono);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  opacity: 0.75;
  color: var(--ai-ink);
  z-index: 1;
}

.page-news .page-news__featured-card--green .page-news__featured-num {
  color: var(--ai-gold);
}

.page-news .page-news__featured-cat {
  font-family: var(--ai-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--ai-ink);
  color: var(--ai-gold);
  border: 2px solid var(--ai-ink);
  padding: 0.3rem 0.6rem;
  width: max-content;
}

.page-news .page-news__featured-card--gold .page-news__featured-cat {
  background: var(--ai-cream);
  color: var(--ai-red);
}

.page-news .page-news__featured-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-news .page-news__featured-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 3px solid var(--ai-ink);
  box-shadow: 4px 4px 0 rgba(11, 61, 46, 0.5);
  margin-top: 0.5rem;
}

/* ===== 最新文章列表 ===== */
.page-news .page-news__latest {
  margin-bottom: 1rem;
}

.page-news .page-news__columns {
  column-count: 1;
  column-gap: 1.5rem;
  column-fill: balance;
}

.page-news .page-news__card {
  background: var(--ai-cream);
  border: 3px solid var(--ai-ink);
  box-shadow: var(--ai-shadow-soft);
  break-inside: avoid;
  margin-bottom: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-news .page-news__card:hover {
  transform: skew(-0.5deg) translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(166, 20, 31, 0.8);
}

.page-news .page-news__card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  background: var(--ai-green);
  color: var(--ai-gold);
  font-family: var(--ai-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.65rem 1rem;
  border-bottom: 3px solid var(--ai-ink);
}

.page-news .page-news__card-min {
  background: var(--ai-ink);
  color: var(--ai-gold);
  padding: 0.15rem 0.45rem;
  font-size: 0.6875rem;
  white-space: nowrap;
}

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

.page-news .page-news__card-cat {
  display: inline-block;
  font-family: var(--ai-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--ai-gold);
  color: var(--ai-ink);
  border: 2px solid var(--ai-ink);
  padding: 0.2rem 0.5rem;
  margin-bottom: 0.7rem;
}

.page-news .page-news__card h3 {
  font-family: var(--ai-serif);
  font-size: 1.2rem;
  line-height: 1.4;
  margin: 0 0 0.75rem;
}

.page-news .page-news__card p {
  font-size: 0.9rem;
  line-height: 1.65;
  margin: 0 0 1rem;
}

.page-news .page-news__card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 3px solid var(--ai-ink);
  margin-bottom: 1rem;
}

.page-news .page-news__card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  border-top: 2px dashed var(--ai-ink);
  padding-top: 0.75rem;
}

.page-news .page-news__card-code {
  font-family: var(--ai-mono);
  font-size: 0.6875rem;
  color: var(--ai-green-2);
}

/* ===== 加载更多 ===== */
.page-news .page-news__more-wrap {
  margin-top: 1.75rem;
  text-align: center;
}

.page-news .page-news__more-btn {
  font-family: var(--ai-mono);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.75rem 1.75rem;
  background: var(--ai-cream);
  color: var(--ai-ink);
  border: 3px solid var(--ai-ink);
  box-shadow: 5px 5px 0 rgba(11, 61, 46, 0.85);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.page-news .page-news__more-btn:hover,
.page-news .page-news__more-btn:focus-visible {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(11, 61, 46, 0.85);
  outline: none;
}

/* ===== 右栏版本更新 ===== */
.page-news .page-news__version-list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
}

.page-news .page-news__version-item {
  position: relative;
  border-left: 3px solid var(--ai-ink);
  margin-left: 0.5rem;
  padding: 0 0 1.25rem 1.25rem;
}

.page-news .page-news__version-item::before {
  content: "";
  position: absolute;
  left: -0.4375rem;
  top: 0.25rem;
  width: 0.6875rem;
  height: 0.6875rem;
  background: var(--ai-gold);
  border: 2px solid var(--ai-ink);
  border-radius: 50%;
}

.page-news .page-news__version-item.is-current::before {
  background: var(--ai-red);
}

.page-news .page-news__version-item:last-child {
  padding-bottom: 0;
}

.page-news .page-news__version-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.page-news .page-news__version-num {
  font-family: var(--ai-mono);
  font-weight: 700;
  font-size: 1.05rem;
  background: var(--ai-ink);
  color: var(--ai-gold);
  padding: 0.15rem 0.4rem;
  border: 2px solid var(--ai-ink);
}

.page-news .page-news__version-tagline {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ai-green-2);
}

.page-news .page-news__version-desc {
  font-size: 0.8375rem;
  line-height: 1.55;
  margin: 0;
}

.page-news .page-news__version-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 3px solid var(--ai-ink);
  box-shadow: var(--ai-shadow-soft);
  margin: 1.5rem 0;
}

.page-news .page-news__topics {
  border-top: 3px solid var(--ai-ink);
  padding-top: 1.25rem;
  margin-top: 1.75rem;
}

.page-news .page-news__topics-title {
  font-family: var(--ai-serif);
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}

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

.page-news .page-news__topics-list a {
  text-decoration: none;
  font-family: var(--ai-mono);
  font-size: 0.8125rem;
}

/* ===== 平板适配 ===== */
@media (min-width: 768px) {
  .page-news .page-news__hero {
    padding-bottom: 3.5rem;
  }

  .page-news .page-news__hero::before {
    display: block;
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 44%;
    height: 100%;
    background: var(--ai-green);
    clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
    z-index: 0;
  }

  .page-news .page-news__hero-grid {
    grid-template-columns: 1fr 260px;
    align-items: center;
    gap: 2.5rem;
  }

  .page-news .page-news__title {
    font-size: 3.75rem;
  }

  .page-news .page-news__hero-panel {
    gap: 0.875rem;
  }

  .page-news .page-news__grid {
    grid-template-columns: 220px minmax(0, 1fr);
    grid-template-areas:
      "aside-left stream"
      "aside-right aside-right";
    align-items: start;
  }

  .page-news .page-news__featured-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-news .page-news__featured-card--gold img {
    margin-top: auto;
  }
}

@media (min-width: 768px) and (max-width: 1099px) {
  .page-news .page-news__aside--right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 1.5rem;
    align-items: start;
  }

  .page-news .page-news__aside--right .page-news__aside-title {
    grid-column: 1 / -1;
  }

  .page-news .page-news__version-img {
    grid-column: 2;
    grid-row: 2;
    margin: 0;
  }

  .page-news .page-news__topics {
    grid-column: 1 / -1;
    margin-top: 0.5rem;
  }
}

/* ===== 桌面适配 ===== */
@media (min-width: 1100px) {
  .page-news .page-news__grid {
    grid-template-columns: 240px minmax(0, 1fr) 280px;
    grid-template-areas: "aside-left stream aside-right";
  }

  .page-news .page-news__columns {
    column-count: 2;
  }

  .page-news .page-news__card {
    margin-bottom: 1.75rem;
  }

  .page-news .page-news__aside {
    padding: 1.75rem;
  }
}