/* ===== 文章动态 page-news 专属 ===== */
.page-news {
  background: var(--paper);
  overflow-x: clip;
}

/* ---- 页面头部 ---- */
.page-news__intro {
  padding: 30px 0 0;
  background:
    radial-gradient(circle at 14% 28%, rgba(16, 36, 62, 0.05) 0%, transparent 38%),
    var(--paper-deep);
  border-bottom: 1px solid var(--silver);
}

.page-news__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 16px;
}

.page-news__heading {
  max-width: 780px;
}

.page-news__heading::before {
  content: "";
  display: block;
  width: 68px;
  height: 4px;
  background: var(--neon);
  transform: skewX(-18deg);
  margin-bottom: 20px;
}

.page-news__heading h1 {
  font-size: clamp(32px, 5.6vw, 56px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
}

.page-news__heading-line {
  display: block;
  font-style: normal;
  font-size: 0.52em;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--muted);
  margin-top: 10px;
}

.page-news__lead {
  max-width: 660px;
  margin: 0;
}

.page-news__filter {
  margin: 30px 0 42px;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---- 文章容器分段 ---- */
.page-news__container {
  padding-top: 8px;
}

.page-news__block {
  padding: 50px 0 42px;
  border-bottom: 1px solid var(--silver);
  scroll-margin-top: 90px;
}

.page-news__block--last {
  border-bottom: none;
}

.page-news__block-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 34px;
}

.page-news__block-index {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.06em;
  color: var(--silver);
  min-width: 64px;
}

.page-news__block-heading {
  border-left: 3px solid var(--ink);
  padding-left: 16px;
}

.page-news__block-heading::after {
  content: "";
  display: block;
  width: 30px;
  height: 3px;
  background: var(--orange);
  transform: skewX(-18deg);
  margin-top: 14px;
}

.page-news__column-tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-news__block-heading h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.page-news__block-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---- 深色版本带 ---- */
.page-news__dark-band {
  background: var(--deep-blue);
  color: var(--white);
  padding: 48px 0;
  margin: 22px 0;
  scroll-margin-top: 90px;
}

.page-news__block--dark {
  border-bottom: none;
  padding: 0;
}

.page-news__block--dark .page-news__block-heading {
  border-left-color: var(--neon);
}

.page-news__block--dark .page-news__block-index {
  color: rgba(201, 210, 222, 0.28);
}

.page-news__block--dark .page-news__block-heading h2 {
  color: var(--white);
}

.page-news__block--dark .page-news__block-desc {
  color: rgba(201, 210, 222, 0.78);
}

/* ---- 布局网格 ---- */
.page-news__update-layout,
.page-news__guide-layout,
.page-news__version-layout,
.page-news__insight-grid {
  display: grid;
  gap: 22px;
}

.page-news__side-stack,
.page-news__guide-stack,
.page-news__version-side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-news__insight-layout {
  display: grid;
  gap: 22px;
}

/* ---- 卡片通用 ---- */
.page-news__card-body {
  padding: 22px 22px 26px;
}

.page-news__card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 14px;
}

.page-news__card-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--silver);
}

.page-news__update-layout .page-news__card-dot {
  background: var(--neon);
}

.page-news__guide-layout .page-news__card-dot {
  background: var(--orange);
}

.page-news__version-layout .page-news__card-dot {
  background: var(--neon);
}

.page-news__insight-layout .page-news__card-dot {
  background: var(--orange);
}

.page-news__card-body h3,
.page-news__side-card h3,
.page-news__version-card h3,
.page-news__insight-card h3 {
  font-size: 19px;
  line-height: 1.42;
  font-weight: 700;
  margin: 0 0 10px;
}

.page-news__card-body p,
.page-news__side-card p,
.page-news__version-card p,
.page-news__insight-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0 0 16px;
}

.page-news__card-body p:last-child,
.page-news__side-card p:last-child,
.page-news__version-card p:last-child,
.page-news__insight-card p:last-child {
  margin-bottom: 0;
}

/* ---- 特色卡片装饰 ---- */
.page-news__feature-card,
.page-news__guide-main,
.page-news__version-visual,
.page-news__insight-feature {
  position: relative;
  overflow: hidden;
}

.page-news__feature-card::after,
.page-news__guide-main::after,
.page-news__version-visual::after,
.page-news__insight-feature::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  transform-origin: left;
}

.page-news__update-layout .page-news__feature-card::after {
  background: var(--neon);
}

.page-news__guide-layout .page-news__guide-main::after {
  background: var(--orange);
}

.page-news__version-layout .page-news__version-visual::after {
  background: var(--neon);
}

.page-news__insight-feature::after {
  background: var(--orange);
}

/* ---- 侧边卡片 ---- */
.page-news__side-card,
.page-news__version-card,
.page-news__insight-card {
  padding: 24px;
  border-left: 3px solid var(--silver);
  transition: transform 0.2s ease;
}

.page-news__side-card--neon {
  border-left-color: var(--neon);
}

.page-news__side-card--orange {
  border-left-color: var(--orange);
}

.page-news__version-card {
  border-left-color: var(--neon);
}

.page-news__insight-card {
  border-left-color: var(--orange);
}

.page-news__side-card:hover,
.page-news__version-card:hover,
.page-news__insight-card:hover {
  transform: translateY(-4px);
}

/* ---- 步骤列表 ---- */
.page-news__steps {
  counter-reset: news-step;
  list-style: none;
  margin: 10px 0 20px;
  padding: 0;
}

.page-news__steps li {
  counter-increment: news-step;
  position: relative;
  padding: 10px 0 10px 34px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  border-bottom: 1px dashed var(--silver);
}

.page-news__steps li:last-child {
  border-bottom: 0;
}

.page-news__steps li::before {
  content: counter(news-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--orange);
}

/* ---- 链接与按钮 ---- */
.page-news__inline-link {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--neon);
  padding-bottom: 2px;
}

.page-news__inline-link:hover {
  color: var(--ink-light);
  border-bottom-color: var(--orange);
}

.page-news__card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

/* ---- 分页 ---- */
.page-news__pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 0 20px;
  border-top: 1px solid var(--silver);
}

.page-news__pagination-info {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-news__pagination-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news__page-btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  padding: 9px 14px;
  line-height: 1;
  text-decoration: none;
}

.page-news__page-btn--current {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.page-news__page-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.page-news__page-btn--current:hover {
  background: var(--ink);
  color: var(--white);
}

/* ---- 联系备注 ---- */
.page-news__contact-note {
  border-top: 1px solid var(--silver);
  padding-top: 18px;
  padding-bottom: 52px;
}

.page-news__contact-note p {
  max-width: 660px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

.page-news__contact-note a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--neon);
}

.page-news__contact-note a:hover {
  border-bottom-color: var(--orange);
}

/* ---- 偏移与错落 ---- */
.page-news__offset-up {
  margin-top: 0;
}

/* ---- 中等屏幕 ---- */
@media (min-width: 640px) {
  .page-news__side-stack,
  .page-news__guide-stack {
    grid-template-columns: 1fr 1fr;
  }

  .page-news__update-layout,
  .page-news__guide-layout {
    gap: 26px;
  }
}

/* ---- 桌面端 ---- */
@media (min-width: 960px) {
  .page-news__side-stack,
  .page-news__guide-stack {
    grid-template-columns: 1fr;
  }

  .page-news__update-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
    align-items: stretch;
  }

  .page-news__guide-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news__version-layout {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
  }

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

  .page-news__side-stack,
  .page-news__guide-stack {
    padding-top: 32px;
  }

  .page-news__insight-grid .page-news__insight-card:nth-child(2) {
    margin-top: 30px;
  }

  .page-news__offset-up {
    margin-top: -24px;
  }

  .page-news__version-side .page-news__version-card:nth-child(2) {
    margin-left: 26px;
  }

  .page-news__version-side .page-news__version-card:nth-child(3) {
    margin-left: 12px;
  }
}