.page-news {
  --reveal-duration: .45s;
  --reveal-ease: ease;
  --reveal-delay: 0s;
  --hover-duration: .25s;
  --news-side: 340px;
  --news-gap: 36px;
  --news-radius: 16px;
}

/* === 页头标题区 === */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 20%, rgba(201, 162, 39, .18) 0, transparent 26%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 32px),
    var(--color-primary);
  color: var(--color-white);
  border-top: 6px solid var(--color-brick);
  padding: 36px 0 44px;
  margin-bottom: var(--space-lg);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -50px;
  width: 240px;
  height: 240px;
  background: var(--color-accent);
  opacity: .10;
  clip-path: polygon(0 40%, 30% 30%, 45% 0, 70% 20%, 100% 10%, 90% 60%, 100% 100%, 55% 85%, 30% 100%, 10% 70%);
  pointer-events: none;
}

.page-news .news-hero .container {
  position: relative;
  z-index: 1;
}

.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: var(--text-note);
  margin-bottom: 24px;
  color: rgba(255, 255, 255, .72);
}

.page-news .breadcrumb a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color .2s ease;
}

.page-news .breadcrumb a:hover {
  color: var(--color-white);
}

.page-news .breadcrumb-sep {
  opacity: .6;
}

.page-news .breadcrumb-current {
  color: rgba(255, 255, 255, .92);
}

.page-news .news-hero-grid {
  display: grid;
  gap: 28px;
}

.page-news .news-hero-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-note);
  letter-spacing: .08em;
  color: var(--color-gold);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-news .news-hero h1 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: 1.28;
  letter-spacing: -.02em;
  margin: 0 0 16px;
  max-width: 780px;
}

.page-news .text-accent {
  color: var(--color-accent);
}

.page-news .news-hero-desc {
  font-size: var(--text-body);
  line-height: 1.75;
  color: rgba(255, 255, 255, .82);
  max-width: 640px;
  margin: 0;
}

.page-news .news-hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, .2);
  padding-top: 20px;
}

.page-news .news-hero-stat {
  display: flex;
  flex-direction: column;
}

.page-news .stat-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-gold);
}

.page-news .stat-caption {
  font-size: var(--text-note);
  color: rgba(255, 255, 255, .74);
  margin-top: 6px;
}

/* === 两栏布局 === */
.page-news .news-layout {
  display: grid;
  gap: var(--news-gap);
  padding-bottom: var(--space-xl);
}

.page-news .news-main-col {
  min-width: 0;
}

.page-news .news-side-col {
  display: flex;
  flex-direction: column;
  gap: var(--news-gap);
  min-width: 0;
}

/* === 左栏面板 === */
.page-news .news-panel {
  background: rgba(255, 255, 255, .6);
  border: 1px solid rgba(46, 42, 38, .08);
  border-radius: var(--news-radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.page-news .news-panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.page-news .news-panel-head h2 {
  font-family: var(--font-heading);
  font-size: var(--text-md);
  margin: 0;
}

.page-news .news-panel-desc {
  font-size: var(--text-note);
  color: var(--color-text);
  opacity: .6;
  margin: 0;
}

/* === 分类筛选 === */
.page-news .filter-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: 24px;
  scrollbar-width: none;
}

.page-news .filter-tabs::-webkit-scrollbar {
  display: none;
}

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

.page-news .filter-tab {
  flex: 0 0 auto;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--color-white);
  border: 1px solid rgba(27, 58, 92, .18);
  font-size: var(--text-small);
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  color: var(--color-primary);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-news .filter-tab:hover {
  border-color: var(--color-primary);
}

.page-news .filter-radio:focus-visible + .filter-tab {
  outline: 3px solid rgba(201, 162, 39, .5);
  outline-offset: 2px;
}

.page-news .filter-radio:checked + .filter-tab {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.page-news #filter-announcement:checked ~ .post-list .post-card:not([data-cat="announcement"]),
.page-news #filter-product:checked ~ .post-list .post-card:not([data-cat="product"]),
.page-news #filter-industry:checked ~ .post-list .post-card:not([data-cat="industry"]),
.page-news #filter-tutorial:checked ~ .post-list .post-card:not([data-cat="tutorial"]) {
  display: none;
}

/* === 文章卡片 === */
.page-news .post-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  left: 0;
  scroll-margin-top: 130px;
}

.page-news .post-card + .post-card {
  margin-top: 16px;
}

.page-news .post-card:hover,
.page-news .post-card:focus-within {
  left: -6px;
  box-shadow: var(--shadow-lg);
}

.page-news .post-card--feature {
  border-top: 6px solid var(--color-primary);
}

.page-news .post-card--plain {
  border-left: 4px solid var(--color-light-blue);
}

.page-news .post-card-media {
  overflow: hidden;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.page-news .post-card-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .post-card--row {
  flex-direction: row;
  align-items: flex-start;
}

.page-news .post-card--row .post-card-media {
  flex: 0 0 72px;
}

.page-news .post-card--row .post-card-media img {
  width: 72px;
  height: 72px;
  object-fit: cover;
}

.page-news .post-card-content {
  min-width: 0;
  flex: 1;
}

.page-news .post-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .post-num {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-brick);
  letter-spacing: -.04em;
}

.page-news .post-date {
  font-size: var(--text-note);
  color: var(--color-text);
  opacity: .6;
  margin-left: auto;
  white-space: nowrap;
}

.page-news .post-cat {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .02em;
}

.page-news .tag--announcement {
  background: var(--color-accent);
  color: var(--color-text);
}

.page-news .tag--product {
  background: var(--color-primary);
  color: var(--color-white);
}

.page-news .tag--industry {
  background: var(--color-gold);
  color: var(--color-text);
}

.page-news .tag--tutorial {
  background: var(--color-light-blue);
  color: var(--color-text);
}

.page-news .post-card h3 {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--color-text);
}

.page-news .post-summary {
  font-size: var(--text-body);
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-news .post-card:hover .post-summary,
.page-news .post-card:focus-within .post-summary {
  -webkit-line-clamp: 5;
}

.page-news .post-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--color-accent-deep);
  text-decoration: none;
  min-height: 44px;
}

.page-news .post-read-more span {
  display: inline-block;
  transform: translateX(0);
  transition: transform .2s ease;
}

.page-news .post-card:hover .post-read-more span,
.page-news .post-card:focus-within .post-read-more span {
  transform: translateX(4px);
}

/* === 列表底部链接 === */
.page-news .news-more {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(46, 42, 38, .1);
  text-align: center;
}

.page-news .news-more a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
  min-height: 44px;
}

.page-news .news-more a:hover {
  color: var(--color-accent-deep);
}

/* === 右栏专题合集 === */
.page-news .feature-section {
  display: flex;
  flex-direction: column;
}

.page-news .section-head--split {
  margin-bottom: 8px;
}

.page-news .section-head--split h2 {
  font-family: var(--font-heading);
  font-size: var(--text-md);
  margin: 0 0 4px;
}

.page-news .feature-card {
  position: relative;
  display: block;
  padding: 24px;
  border-radius: var(--news-radius);
  text-decoration: none;
  top: 0;
  overflow: hidden;
  transition: top var(--hover-duration) ease, box-shadow var(--hover-duration) ease;
  margin-top: 16px;
}

.page-news .feature-card:hover {
  top: -4px;
  box-shadow: var(--shadow-lg);
}

.page-news .feature-card h3,
.page-news .feature-card p,
.page-news .feature-link,
.page-news .feature-card-top {
  position: relative;
  z-index: 1;
}

.page-news .feature-card h3 {
  font-family: var(--font-heading);
  font-size: var(--text-md);
  line-height: 1.35;
  margin: 0 0 8px;
}

.page-news .feature-card p {
  font-size: var(--text-small);
  line-height: 1.7;
  margin: 0 0 16px;
  opacity: .92;
}

.page-news .feature-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: var(--text-small);
  min-height: 40px;
}

.page-news .feature-link span {
  transition: transform .2s ease;
}

.page-news .feature-card:hover .feature-link span {
  transform: translateX(4px);
}

.page-news .feature-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.page-news .feature-series {
  font-family: var(--font-mono);
  font-size: var(--text-note);
  letter-spacing: .06em;
  opacity: .8;
}

.page-news .feature-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.page-news .feature-tag--brick {
  background: var(--color-white);
  color: var(--color-brick);
}

.page-news .feature-tag--gold {
  background: var(--color-text);
  color: var(--color-gold);
}

.page-news .feature-card--brick {
  background: var(--color-brick);
  color: var(--color-white);
}

.page-news .feature-card--brick::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .08) 0 2px, transparent 2px 28px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .05) 0 2px, transparent 2px 26px);
  pointer-events: none;
}

.page-news .feature-card--dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.page-news .feature-card--dark::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(201, 162, 39, .25) 0, transparent 45%),
    linear-gradient(135deg, transparent 60%, rgba(255, 255, 255, .06) 100%);
  pointer-events: none;
}

.page-news .feature-card--gold {
  background: var(--color-gold);
  color: var(--color-text);
}

.page-news .feature-card--gold::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .12) 0%, transparent 30%),
    repeating-linear-gradient(180deg, rgba(46, 42, 38, .06) 0 1px, transparent 1px 18px);
  pointer-events: none;
}

/* === 更新节奏卡片 === */
.page-news .news-trust {
  background: var(--color-secondary-bg);
  border-radius: var(--news-radius);
  padding: 24px;
  color: var(--color-text);
}

.page-news .news-trust h3 {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  margin: 0 0 16px;
}

.page-news .news-trust ul {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-trust li {
  position: relative;
  padding-left: 16px;
  font-size: var(--text-small);
  line-height: 1.5;
}

.page-news .news-trust li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--color-accent);
}

.page-news .news-trust .btn {
  width: 100%;
  justify-content: center;
  display: inline-flex;
  align-items: center;
}

/* === 动效与减少动效 === */
.page-news .post-card[data-reveal],
.page-news .feature-card[data-reveal],
.page-news .news-trust[data-reveal] {
  transition:
    opacity var(--reveal-duration) var(--reveal-ease) var(--reveal-delay),
    transform var(--reveal-duration) var(--reveal-ease) var(--reveal-delay),
    left var(--hover-duration) var(--reveal-ease) 0s,
    top var(--hover-duration) var(--reveal-ease) 0s,
    box-shadow var(--hover-duration) var(--reveal-ease) 0s;
}

.page-news .post-card:nth-child(2),
.page-news .feature-card:nth-of-type(1) {
  --reveal-delay: .06s;
}

.page-news .post-card:nth-child(3),
.page-news .feature-card:nth-of-type(2) {
  --reveal-delay: .12s;
}

.page-news .post-card:nth-child(4),
.page-news .feature-card:nth-of-type(3) {
  --reveal-delay: .18s;
}

.page-news .post-card:nth-child(5) {
  --reveal-delay: .24s;
}

@media (prefers-reduced-motion: reduce) {
  .page-news .post-card[data-reveal],
  .page-news .feature-card[data-reveal],
  .page-news .news-trust[data-reveal] {
    transition:
      opacity .3s ease,
      left 0s,
      top 0s,
      box-shadow 0s;
    transform: none;
  }

  .page-news .post-card:hover,
  .page-news .post-card:focus-within {
    left: 0;
  }

  .page-news .feature-card:hover {
    top: 0;
  }

  .page-news .post-read-more span,
  .page-news .feature-link span,
  .page-news .news-more a span {
    transform: none;
  }
}

/* === 响应式：平板 === */
@media (min-width: 700px) {
  .page-news .news-panel {
    padding: 32px;
  }

  .page-news .post-card--feature {
    flex-direction: row;
    align-items: center;
  }

  .page-news .post-card--feature .post-card-content {
    flex: 1;
  }

  .page-news .post-card--feature .post-card-media {
    flex: 0 0 46%;
    order: 2;
  }

  .page-news .post-card--feature .post-card-media img {
    width: 100%;
    height: auto;
  }

  .page-news .post-card--row .post-card-media {
    flex-basis: 112px;
  }

  .page-news .post-card--row .post-card-media img {
    width: 112px;
    height: 84px;
    object-fit: cover;
  }

  .page-news .post-card h3 {
    font-size: var(--text-md);
  }

  .page-news .post-summary {
    -webkit-line-clamp: 3;
  }

  .page-news .post-card:hover .post-summary,
  .page-news .post-card:focus-within .post-summary {
    -webkit-line-clamp: 6;
  }
}

/* === 响应式：桌面 === */
@media (min-width: 960px) {
  .page-news .news-hero {
    padding: 48px 0 56px;
  }

  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
    gap: 40px;
  }

  .page-news .news-hero-meta {
    border-top: none;
    padding-top: 0;
    border-left: 1px solid rgba(255, 255, 255, .2);
    padding-left: 28px;
  }

  .page-news .news-layout {
    grid-template-columns: minmax(0, 1fr) var(--news-side);
    align-items: start;
  }

  .page-news .news-side-col {
    position: sticky;
    top: 120px;
    max-height: calc(100vh - 136px);
    overflow-y: auto;
  }
}