/* =========================================
   文章中心 · 页面专属样式 .page-news
   ========================================= */
.page-news {
  --news-line: rgba(0, 255, 136, 0.35);
  position: relative;
  padding-bottom: 96px;
  overflow-x: clip;
}

.page-news .breadcrumbs {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.page-news .breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.page-news .breadcrumbs a:hover {
  color: var(--accent-neon);
}

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

/* 页头 */
.page-news .news-head {
  position: relative;
  margin: 36px 0 48px;
  padding: 40px 0 28px;
  border-top: 2px solid rgba(0, 255, 136, 0.6);
  border-bottom: 1px solid var(--glass-border);
}

.page-news .news-head::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 160px;
  background:
    linear-gradient(135deg, rgba(30, 144, 255, 0.18), transparent 60%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 18px);
  pointer-events: none;
}

.page-news .news-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 84px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-neon), var(--data-blue), transparent);
}

.page-news .page-head__title {
  margin: 12px 0 16px;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-news .page-head__desc {
  max-width: 680px;
  margin-bottom: 0;
}

/* 精选文章 */
.page-news .news-feature {
  margin: 0 0 60px;
}

.page-news .news-feature__panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-deep-alt), rgba(17, 21, 39, 0.9));
}

.page-news .news-feature__panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  z-index: 2;
  background: linear-gradient(90deg, var(--accent-neon) 0%, var(--accent-neon) 40%, var(--accent-orange) 100%);
}

.page-news .news-feature__panel::after {
  content: "";
  position: absolute;
  right: -70px;
  top: 28px;
  width: 180px;
  height: 180px;
  background: repeating-linear-gradient(135deg, transparent 0 10px, rgba(0, 255, 136, 0.1) 10px 11px);
  transform: rotate(8deg);
  pointer-events: none;
  z-index: 2;
}

.page-news .news-feature__media {
  position: relative;
  min-height: 240px;
  overflow: hidden;
}

.page-news .news-feature__media img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.page-news .news-feature__panel:hover .news-feature__media img {
  transform: scale(1.03);
}

.page-news .news-feature__body {
  padding: 28px 22px 30px;
}

.page-news .news-feature__title {
  font-family: var(--font-head);
  font-size: clamp(26px, 4.5vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 14px 0 16px;
}

.page-news .news-feature__desc {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 520px;
}

.page-news .news-feature__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

/* 两栏布局 */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
}

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

/* 分类筛选 */
.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 48px;
  padding: 14px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.028);
}

.page-news .news-filters__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text-primary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.page-news .news-filters__item span {
  color: var(--accent-neon);
  font-size: 11px;
}

.page-news .news-filters__item:hover {
  border-color: var(--accent-neon);
  color: var(--accent-neon);
}

.page-news .news-filters__item.is-active {
  background: var(--accent-neon);
  color: var(--bg-deep);
  border-color: var(--accent-neon);
}

.page-news .news-filters__item.is-active span {
  color: var(--bg-deep);
}

/* 文章区块 */
.page-news .news-section {
  margin-bottom: 56px;
  scroll-margin-top: 24px;
}

.page-news .news-section__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
  font-family: var(--font-head);
  font-size: 24px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.page-news .news-section__index {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent-orange);
  border: 1px solid rgba(255, 107, 0, 0.4);
  padding: 4px 8px;
}

.page-news .news-section__more {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-neon);
  text-decoration: none;
  border-bottom: 1px solid var(--news-line);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.page-news .news-section__more:hover {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
}

/* 文章行 */
.page-news .news-list {
  display: grid;
  gap: 18px;
}

.page-news .news-row {
  position: relative;
  padding: 20px 20px 20px 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.022);
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}

.page-news .news-row::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 20px;
  bottom: 20px;
  width: 3px;
  background: linear-gradient(var(--accent-neon), var(--data-blue));
  opacity: 0.8;
}

.page-news .news-row:hover {
  border-color: rgba(0, 255, 136, 0.45);
  background: rgba(0, 255, 136, 0.05);
  transform: translateX(4px);
}

.page-news .news-row__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .news-row__read {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-news .news-row__title {
  font-family: var(--font-head);
  font-size: 19px;
  line-height: 1.35;
  margin: 0 0 10px;
  letter-spacing: 0.005em;
}

.page-news .news-row__desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 14px;
}

.page-news .news-row__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-news .news-row__stats span {
  background: rgba(30, 144, 255, 0.1);
  border: 1px solid rgba(30, 144, 255, 0.28);
  color: var(--text-primary);
  padding: 4px 10px;
  white-space: nowrap;
}

/* 分类卡片 + 内嵌列表 */
.page-news .news-cat-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-news .news-card {
  overflow: hidden;
  background: var(--bg-deep-alt);
}

.page-news .news-card__media {
  overflow: hidden;
}

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

.page-news .news-card__body {
  padding: 20px;
}

.page-news .news-card__title {
  font-family: var(--font-head);
  font-size: 22px;
  line-height: 1.3;
  margin: 12px 0 10px;
  letter-spacing: -0.01em;
}

.page-news .news-card__body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

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

.page-news .news-row--compact {
  padding: 16px 16px 16px 18px;
}

.page-news .news-row--compact h4 {
  font-family: var(--font-head);
  font-size: 16px;
  line-height: 1.35;
  margin: 0 0 8px;
}

.page-news .news-row--compact p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

/* 侧边栏 */
.page-news .news-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-content: start;
}

.page-news .news-quick {
  padding: 22px;
}

.page-news .news-quick__title {
  font-family: var(--font-head);
  font-size: 20px;
  margin: 8px 0 12px;
  line-height: 1.3;
}

.page-news .news-quick__desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.page-news .news-side__nav {
  border-left: 1px solid rgba(0, 255, 136, 0.25);
  padding-left: 14px;
}

.page-news .news-side__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.page-news .news-side__title::before {
  content: "◆";
  color: var(--accent-orange);
  font-size: 10px;
}

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

.page-news .news-side__list li + li {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.page-news .news-side__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 8px;
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: none;
  transition: background 0.2s, padding-left 0.2s;
}

.page-news .news-side__list a:hover {
  background: rgba(0, 255, 136, 0.07);
  padding-left: 12px;
}

.page-news .news-side__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--data-blue);
}

.page-news .news-side__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-neon);
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.2);
  padding: 2px 8px;
}

/* 热门标签 */
.page-news .news-tags__cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .news-tags__cloud a.tag,
.page-news .news-tags__cloud .tag {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.page-news .news-tags__cloud a.tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.35);
}

/* 侧边栏装饰图 */
.page-news .news-side__bg {
  height: 300px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

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

/* ===== 平板 ===== */
@media (min-width: 768px) {
  .page-news .news-feature__panel {
    grid-template-columns: 1.1fr 1fr;
  }

  .page-news .news-feature__media {
    clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
  }

  .page-news .news-feature__body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 36px 32px;
  }

  .page-news .news-filters {
    gap: 12px;
    padding: 16px;
  }

  .page-news .news-cat-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-news .news-section__title {
    font-size: 28px;
  }

  .page-news .news-list {
    gap: 24px;
  }

  .page-news .news-side__bg {
    height: 340px;
  }
}

/* ===== 桌面 ===== */
@media (min-width: 1024px) {
  .page-news .news-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 48px;
  }

  .page-news .news-side {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }
}