.page-news {
  --c-news-line: rgba(0, 255, 136, 0.18);
  --c-news-blue: #00BFFF;
  --c-news-dim: #9CA3AF;
  --c-news-panel: rgba(17, 24, 39, 0.75);
  position: relative;
  background: var(--color-bg-primary);
  overflow-x: clip;
}

.page-news img {
  max-width: 100%;
  height: auto;
}

/* ===== 编辑刊头 ===== */
.page-news__masthead {
  position: relative;
  padding: 2.75rem 0 2rem;
  border-bottom: 1px solid var(--c-news-line);
  background:
    radial-gradient(ellipse 55% 45% at 88% 8%, rgba(0, 255, 136, 0.08), transparent 60%),
    radial-gradient(ellipse 45% 40% at 8% 12%, rgba(0, 191, 255, 0.06), transparent 55%);
}

.page-news__masthead::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent-green), var(--color-accent-blue), transparent);
  opacity: 0.7;
}

.page-news__masthead-row {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.5rem;
}

.page-news__masthead-kicker {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--color-accent-green);
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--c-news-line);
  margin-bottom: 0.875rem;
}

.page-news__masthead h1 {
  margin: 0;
  font-size: clamp(2.5rem, 7vw, 4rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.page-news__masthead h1::after {
  content: "";
  display: block;
  width: clamp(3rem, 6vw, 5rem);
  height: 0.3125rem;
  margin-top: 1rem;
  background: linear-gradient(90deg, var(--color-accent-green), var(--color-accent-blue));
  border-radius: var(--radius-pill);
}

.page-news__masthead-desc {
  margin-top: 1.125rem;
  max-width: 48ch;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.9;
  font-family: var(--font-body);
}

.page-news__masthead-side {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-news__masthead-stat {
  min-width: 7.5rem;
  padding: 1rem 1.125rem;
  background: var(--c-news-panel);
  border-left: 3px solid var(--color-accent-blue);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 0.75rem), calc(100% - 0.75rem) 100%, 0 100%);
}

.page-news__masthead-stat .data-stat {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 900;
  color: var(--color-accent-green);
  line-height: 1.15;
  font-family: var(--font-body);
}

.page-news__masthead-stat-label {
  display: block;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  letter-spacing: 0.08em;
}

@media (min-width: 48rem) {
  .page-news__masthead-row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

/* ===== 主布局 ===== */
.page-news__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding: 2rem 0 3.5rem;
}

@media (min-width: 64rem) {
  .page-news__layout {
    grid-template-columns: 13rem minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }
}

/* ===== 侧边目录 ===== */
.page-news__toc {
  position: sticky;
  top: 6.25rem;
  z-index: 5;
  padding: 0.875rem;
  background: var(--color-bg-secondary);
  border: 1px solid rgba(0, 191, 255, 0.18);
  border-radius: var(--radius-md);
}

.page-news__toc-title {
  display: block;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-bottom: 0.875rem;
}

.page-news__toc-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.page-news__toc-link {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition:
    color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    border-color var(--duration-fast) ease;
}

.page-news__toc-link:hover {
  color: var(--color-accent-green);
  background: rgba(0, 255, 136, 0.06);
}

.page-news__toc-link.is-active {
  color: var(--color-accent-green);
  border-left-color: var(--color-accent-green);
  background: rgba(0, 255, 136, 0.08);
}

.page-news__toc-note {
  display: none;
  margin-top: 1rem;
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  letter-spacing: 0.06em;
}

@media (min-width: 64rem) {
  .page-news__toc {
    padding: 0;
    background: transparent;
    border: 0;
    border-left: 3px solid var(--color-accent-green);
    border-radius: 0;
    top: 7rem;
  }

  .page-news__toc-nav {
    flex-direction: column;
    gap: 0.125rem;
  }

  .page-news__toc-note {
    display: block;
  }
}

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

.page-news__section + .page-news__section {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--c-news-line);
}

/* ===== 特色文章 ===== */
.page-news__feature {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--color-bg-secondary);
  clip-path: polygon(0 0, calc(100% - 1rem) 0, 100% 1rem, 100% 100%, 0 100%);
  transition: transform var(--duration-mid) var(--ease-out);
}

.page-news__feature:hover {
  transform: translateY(-4px);
}

.page-news__feature-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

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

.page-news__feature-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.page-news__feature-tick {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-accent-green);
}

.page-news__feature-tick::before {
  content: "";
  width: 0.4375rem;
  height: 0.4375rem;
  border-radius: 50%;
  background: var(--color-accent-green);
  box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.15);
  animation: page-news-pulse 2s infinite;
}

.page-news__feature-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.page-news__feature-excerpt {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-news__feature-points {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: grid;
  gap: 0.5rem;
}

.page-news__feature-points li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--color-text-primary);
  font-size: 0.875rem;
  font-family: var(--font-body);
}

.page-news__feature-points li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-accent-green);
}

@media (min-width: 40rem) {
  .page-news__feature {
    grid-template-columns: minmax(12rem, 20rem) 1fr;
    align-items: center;
  }
}

/* ===== 时间线文章流 ===== */
.page-news__timeline {
  position: relative;
  margin-top: 2.5rem;
  padding-left: 1.5rem;
  border-left: 1px solid rgba(0, 255, 136, 0.25);
}

.page-news__timeline-item {
  position: relative;
  padding-bottom: 2.25rem;
}

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

.page-news__timeline-item::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0.375rem;
  width: 0.5625rem;
  height: 0.5625rem;
  border-radius: 50%;
  background: var(--color-accent-green);
  box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.12);
}

.page-news__timeline-index {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--color-accent-blue);
  margin-bottom: 0.375rem;
}

.page-news__timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.page-news__timeline-date {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
}

.page-news__timeline-title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.4;
  color: var(--color-text-primary);
}

.page-news__timeline-body p {
  margin: 0 0 0.75rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.85;
}

.page-news__timeline-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.page-news__timeline-metric {
  padding: 0.25rem 0.625rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-accent-blue);
  background: rgba(0, 191, 255, 0.08);
  border: 1px solid rgba(0, 191, 255, 0.18);
  border-radius: var(--radius-pill);
}

/* ===== 数据图鉴 ===== */
.page-news__data-block {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
  padding: 1.25rem;
  background: var(--color-bg-tertiary);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 1rem), calc(100% - 1rem) 100%, 0 100%);
}

.page-news__data-visual {
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.page-news__data-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__data-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.page-news__data-live {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-accent-blue);
}

.page-news__data-live::before {
  content: "";
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--color-accent-blue);
  box-shadow: 0 0 0 4px rgba(0, 191, 255, 0.12);
}

.page-news__data-body h3 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.4;
  color: var(--color-text-primary);
}

.page-news__data-body p {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.85;
}

.page-news__data-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-news__data-stat {
  flex: 1 1 5.5rem;
  padding: 0.875rem;
  background: var(--color-bg-primary);
  border: 1px solid rgba(0, 255, 136, 0.15);
  border-radius: var(--radius-sm);
}

.page-news__data-stat .data-stat {
  display: block;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-accent-green);
  line-height: 1.2;
  font-family: var(--font-body);
}

.page-news__data-stat span:last-child {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
}

@media (min-width: 48rem) {
  .page-news__data-block {
    grid-template-columns: minmax(16rem, 1.2fr) minmax(14rem, 0.8fr);
    align-items: center;
  }
}

/* ===== 热门标签 ===== */
.page-news__tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-news__tag-item {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 1px solid rgba(0, 255, 136, 0.25);
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition:
    transform var(--duration-fast) ease,
    background var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.page-news__tag-item:nth-child(3n+2) {
  border-color: rgba(0, 191, 255, 0.3);
}

.page-news__tag-item:nth-child(3n+2):hover {
  background: rgba(0, 191, 255, 0.12);
  color: var(--color-accent-blue);
  border-color: var(--color-accent-blue);
}

.page-news__tag-item:hover {
  background: rgba(0, 255, 136, 0.12);
  color: var(--color-accent-green);
  border-color: var(--color-accent-green);
  transform: translateY(-2px);
}

.page-news__tag-note {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--color-accent-blue);
  background: var(--color-bg-secondary);
}

.page-news__tag-note p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

/* ===== 专题系列 ===== */
.page-news__series-cover {
  margin-top: 1.5rem;
  overflow: hidden;
  border-radius: var(--radius-sm);
  position: relative;
}

.page-news__series-cover::after {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(0, 255, 136, 0.25);
  border-radius: var(--radius-xs);
  pointer-events: none;
}

.page-news__series-cover img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__series-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.page-news__series-card {
  position: relative;
  padding: 1.5rem 1.25rem 1.25rem;
  background: var(--color-bg-secondary);
  border-top: 3px solid var(--color-accent-green);
  clip-path: polygon(0 0, calc(100% - 1rem) 0, 100% 1rem, 100% 100%, 0 100%);
  transition:
    transform var(--duration-mid) var(--ease-out),
    background var(--duration-mid) var(--ease-out);
}

.page-news__series-card:hover {
  transform: translateY(-4px);
  background: var(--color-bg-tertiary);
}

.page-news__series-no {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--color-accent-blue);
  background: rgba(0, 191, 255, 0.1);
  border: 1px solid rgba(0, 191, 255, 0.2);
  border-radius: var(--radius-pill);
  margin-bottom: 0.875rem;
}

.page-news__series-card h3 {
  margin: 0 0 0.625rem;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.4;
  color: var(--color-text-primary);
}

.page-news__series-card p {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.8;
}

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

.page-news__series-tag {
  padding: 0.25rem 0.5rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-accent-green);
  border: 1px solid rgba(0, 255, 136, 0.25);
  border-radius: var(--radius-xs);
  text-decoration: none;
  transition: background var(--duration-fast) ease;
}

.page-news__series-tag:hover {
  background: rgba(0, 255, 136, 0.1);
}

@media (min-width: 48rem) {
  .page-news__series-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .page-news__series-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== 订阅更新 ===== */
.page-news__subscribe {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse 70% 60% at 15% 0%, rgba(0, 255, 136, 0.08), transparent 60%),
    var(--color-bg-secondary);
  border: 1px solid rgba(0, 255, 136, 0.2);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 1.25rem), calc(100% - 1.25rem) 100%, 0 100%);
}

.page-news__subscribe-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.page-news__subscribe-body h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-text-primary);
}

.page-news__subscribe-body > p {
  margin: 0 0 1rem;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-news__subscribe-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: grid;
  gap: 0.5rem;
}

.page-news__subscribe-list li {
  position: relative;
  padding-left: 1.5rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-text-primary);
}

.page-news__subscribe-list li::before {
  content: "+";
  position: absolute;
  left: 0;
  color: var(--color-accent-green);
  font-weight: 700;
}

.page-news__subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-news__subscribe-note {
  margin-top: 1rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

@media (min-width: 48rem) {
  .page-news__subscribe {
    grid-template-columns: minmax(10rem, 16rem) 1fr;
    align-items: center;
    padding: 2rem;
  }
}

/* ===== 通用动效 ===== */
@keyframes page-news-pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.85);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    animation: none !important;
    transition: none !important;
  }
}