.page-news {
  --news-gap: clamp(24px, 4vw, 48px);
  --news-radius: 22px;
  --news-pad: clamp(48px, 7vw, 88px);
  --news-muted: rgba(255, 255, 255, 0.68);
  --news-line: rgba(255, 255, 255, 0.1);
  --news-card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  background: var(--c-deep);
  color: var(--c-white);
  overflow: hidden;
}

.page-news .breadcrumb {
  padding-top: 22px;
}

.page-news .container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-news .section {
  padding-top: var(--news-pad);
  padding-bottom: var(--news-pad);
}

.page-news .section__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 36px;
}

.page-news .section__index {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-orange);
  white-space: nowrap;
}

.page-news .section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--c-white);
}

.page-news .section__subtitle {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--news-muted);
  line-height: 1.6;
}

.page-news .section__head--light .section__title {
  color: var(--c-ink);
}

.page-news .section__head--light .section__subtitle {
  color: rgba(26, 26, 26, 0.62);
}

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

.page-news .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-white);
  background: linear-gradient(135deg, var(--c-orange), #ff9500);
  white-space: nowrap;
}

.page-news .tag--ghost {
  color: var(--c-electric);
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.45);
}

.page-news .data-line {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--news-muted);
  white-space: nowrap;
}

/* 页头 */
.page-news__intro {
  position: relative;
  padding: 44px 0 56px;
  background:
    radial-gradient(ellipse at 85% 20%, rgba(255, 107, 0, 0.2), transparent 46%),
    radial-gradient(ellipse at 15% 80%, rgba(0, 212, 255, 0.12), transparent 44%);
  border-bottom: 1px solid var(--news-line);
}

.page-news__intro::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 180px;
  height: 32px;
  background: linear-gradient(135deg, transparent 50%, var(--c-orange) 50%);
  opacity: 0.9;
}

.page-news__intro-grid {
  display: grid;
  gap: 28px;
  align-items: end;
}

.page-news__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-electric);
}

.page-news__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 68px);
  line-height: 0.95;
  letter-spacing: 0.01em;
  color: var(--c-white);
}

.page-news__lead {
  margin: 20px 0 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--news-muted);
}

.page-news__intro-stat {
  justify-self: start;
  border-left: 2px solid var(--c-orange);
  padding-left: 18px;
}

.page-news__intro-stat-num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-white);
}

.page-news__intro-stat-unit {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-orange);
  margin-left: 2px;
}

.page-news__intro-stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--news-muted);
}

/* 01 头条 */
.page-news__featured-grid {
  display: grid;
  gap: var(--news-gap);
}

.page-news__article-card {
  display: flex;
  flex-direction: column;
  background: var(--news-card-bg);
  border: 1px solid var(--news-line);
  border-radius: var(--news-radius);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.page-news__article-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35);
}

.page-news__article-media {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--c-deeper);
}

.page-news__article-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.page-news__article-card:hover .page-news__article-media img {
  transform: scale(1.03);
}

.page-news__article-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px 24px 26px;
}

.page-news__article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.page-news__article-title {
  margin: 0;
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-news__article-title a {
  color: var(--c-white);
  text-decoration: none;
}

.page-news__article-title a:hover {
  color: var(--c-electric);
}

.page-news__article-excerpt {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--news-muted);
}

/* 02 最新动态 */
.page-news__latest {
  background: var(--c-deeper);
  padding-top: var(--news-pad);
  padding-bottom: var(--news-pad);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-news__latest-layout {
  display: grid;
  gap: 36px;
}

.page-news__index {
  border: 1px solid var(--news-line);
  border-radius: var(--news-radius);
  background: rgba(255, 255, 255, 0.03);
  padding: 24px;
  align-self: start;
}

.page-news__index-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-electric);
  text-transform: uppercase;
}

.page-news__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-news__index-list a {
  display: block;
  padding: 10px 14px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-white);
  border-radius: 12px;
  transition: background 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}

.page-news__index-list a:hover {
  background: rgba(255, 107, 0, 0.16);
  color: var(--c-orange);
  padding-left: 18px;
}

.page-news__index-note {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--news-line);
}

.page-news__index-note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--news-muted);
}

.page-news__feed-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 26px 0;
  border-bottom: 1px solid var(--news-line);
}

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

.page-news__feed-num {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-orange);
  min-width: 48px;
}

.page-news__feed-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.page-news__feed-title {
  margin: 4px 0 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

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

.page-news__feed-link {
  align-self: flex-start;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-electric);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-news__feed-link:hover {
  color: var(--c-white);
  border-bottom-color: var(--c-electric);
}

/* 03 版本更新 */
.page-news__version-grid {
  display: grid;
  gap: 36px;
}

.page-news__timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-news__timeline::before {
  content: "";
  position: absolute;
  left: 70px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-electric), rgba(0, 212, 255, 0.08));
}

.page-news__timeline-item {
  position: relative;
  padding: 0 0 36px 102px;
}

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

.page-news__timeline-year {
  position: absolute;
  left: 0;
  top: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-white);
  background: var(--c-deep);
  border: 2px solid var(--c-electric);
  box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.12);
}

.page-news__timeline-body {
  padding-top: 2px;
}

.page-news__timeline-body h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-white);
}

.page-news__timeline-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--news-muted);
}

.page-news__version-figure {
  margin: 0;
  border-radius: var(--news-radius);
  overflow: hidden;
  border: 1px solid var(--news-line);
  background: var(--c-deeper);
}

.page-news__version-figure img {
  width: 100%;
  display: block;
}

.page-news__version-figure figcaption {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--news-muted);
  border-top: 1px solid var(--news-line);
}

/* 04 专题合集 */
.page-news__topics {
  background: var(--c-cream);
  color: var(--c-ink);
  padding-top: var(--news-pad);
  padding-bottom: var(--news-pad);
}

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

.page-news__topic-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border-radius: 24px;
  overflow: hidden;
  text-decoration: none;
  color: var(--c-ink);
  box-shadow: 0 4px 18px rgba(7, 22, 49, 0.08);
  border: 1px solid rgba(10, 31, 68, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-news__topic-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(7, 22, 49, 0.14);
}

.page-news__topic-card--wide .page-news__topic-img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  display: block;
}

.page-news__topic-body {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 26px 28px;
}

.page-news__topic-num {
  position: absolute;
  top: 18px;
  right: 24px;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 107, 0, 0.22);
}

.page-news__topic-name {
  margin: 0;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-ink);
}

.page-news__topic-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(26, 26, 26, 0.66);
  max-width: 38em;
}

.page-news__topic-card .tag {
  align-self: flex-start;
}

/* 05 平台概况 */
.page-news__about {
  padding-top: var(--news-pad);
  padding-bottom: var(--news-pad);
  background: var(--c-deeper);
}

.page-news__about-panel {
  display: grid;
  gap: 36px;
  background: var(--news-card-bg);
  border: 1px solid var(--news-line);
  border-radius: 28px;
  padding: clamp(28px, 5vw, 48px);
}

.page-news__about-copy .section__title {
  margin: 0 0 16px;
}

.page-news__about-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--news-muted);
}

.page-news__about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.page-news .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.page-news .btn--primary {
  background: linear-gradient(135deg, var(--c-orange), #ff9500);
  color: var(--c-white);
}

.page-news .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 107, 0, 0.35);
}

.page-news .btn--ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--c-white);
}

.page-news .btn--ghost:hover {
  border-color: var(--c-electric);
  color: var(--c-electric);
}

.page-news__about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
  border-radius: 20px;
  overflow: hidden;
  margin: 0;
}

.page-news__about-stat {
  padding: 22px 20px;
  background: var(--c-deeper);
}

.page-news__about-stat dt {
  font-size: 13px;
  color: var(--news-muted);
  margin-bottom: 8px;
}

.page-news__about-stat dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--c-white);
}

.page-news__trust {
  margin: 28px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--c-orange);
  font-size: 14px;
  line-height: 1.7;
  color: var(--news-muted);
}

/* ===== 平板与桌面 ===== */
@media (min-width: 720px) {
  .page-news__intro-grid {
    grid-template-columns: 1fr auto;
  }

  .page-news__intro-stat {
    margin-bottom: 4px;
  }

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

  .page-news__topic-card--wide {
    grid-column: span 2;
  }

  .page-news__about-panel {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

@media (min-width: 1000px) {
  .page-news__featured-grid {
    grid-template-columns: 1.1fr 1fr;
  }

  .page-news__latest-layout {
    grid-template-columns: 260px 1fr;
    gap: 44px;
  }

  .page-news__version-grid {
    grid-template-columns: 1fr 360px;
    gap: 44px;
    align-items: center;
  }
}