.page-news {
  --pn-line: rgba(168, 179, 199, 0.14);
  --pn-line-strong: rgba(212, 175, 55, 0.38);
  --pn-panel: rgba(16, 32, 58, 0.86);
  --pn-panel-2: rgba(28, 49, 83, 0.42);
  --pn-gap: 24px;
  background: var(--navy-950);
  color: var(--off-white);
  padding-bottom: 72px;
}

/* ======= Hero 刊头 ======= */
.page-news__hero {
  padding: 40px 24px 32px;
  border-bottom: 1px solid var(--pn-line);
  background:
    repeating-linear-gradient(90deg, transparent 0 56px, rgba(168, 179, 199, 0.045) 56px 57px),
    linear-gradient(180deg, rgba(28, 49, 83, 0.38) 0%, transparent 100%);
}

.page-news__hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.page-news__masthead {
  margin-top: 28px;
}

.page-news__exhibit {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.page-news__update-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-family: var(--font-numeric);
  letter-spacing: 0.08em;
  color: var(--gold-300);
  border: 1px solid var(--pn-line-strong);
  padding: 4px 12px;
  background: rgba(212, 175, 55, 0.08);
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-news__update-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--orange-500);
  border-radius: 50%;
}

.page-news__masthead h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(44px, 8vw, 92px);
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 22px;
  color: var(--off-white);
}

.page-news__lead {
  max-width: 660px;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate-300);
  border-left: 2px solid var(--gold-500);
  padding-left: 18px;
}

/* ======= 横向滚动分类标签 ======= */
.page-news__tab-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 16px 24px;
  scrollbar-width: thin;
  scrollbar-color: rgba(212, 175, 55, 0.4) rgba(168, 179, 199, 0.08);
  background: rgba(16, 32, 58, 0.7);
  border-bottom: 1px solid var(--pn-line);
  -webkit-overflow-scrolling: touch;
}

.page-news__tab-scroll::-webkit-scrollbar {
  height: 3px;
}

.page-news__tab-scroll::-webkit-scrollbar-thumb {
  background: rgba(212, 175, 55, 0.4);
}

.page-news__tab-btn {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--slate-300);
  background: rgba(28, 49, 83, 0.5);
  border: 1px solid var(--pn-line);
  padding: 8px 16px;
  cursor: pointer;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.page-news__tab-btn[aria-selected="true"] {
  color: var(--navy-950);
  background: var(--gold-500);
  border-color: var(--gold-500);
  font-weight: 700;
}

.page-news__tab-btn:hover {
  border-color: var(--pn-line-strong);
  color: var(--gold-300);
}

/* ======= 主内容栅格 ======= */
.page-news__layout {
  padding: 0 24px;
  margin-top: 32px;
  display: block;
}

/* ======= 区块通用 ======= */
.page-news__section {
  margin-bottom: 56px;
}

.page-news__section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--pn-line);
}

.page-news__section-head h2 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--off-white);
  margin: 0;
}

.page-news__sec-no {
  display: inline-block;
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
  border: 1px solid var(--pn-line-strong);
  padding: 3px 8px;
  margin-right: 12px;
  vertical-align: 2px;
}

.page-news__sec-coord {
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--slate-300);
  opacity: 0.72;
  white-space: nowrap;
}

/* ======= 文章条目 ======= */
.page-news__article {
  position: relative;
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--pn-line);
  transition: padding-left 0.3s ease;
}

.page-news__article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: transparent;
  transition: background 0.3s ease;
}

.page-news__article:hover::before {
  background: var(--gold-500);
}

.page-news__article:hover {
  padding-left: 10px;
}

.page-news__article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 12px;
}

.page-news__article-cat {
  display: inline-block;
  font-family: var(--font-numeric);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-300);
  background: rgba(212, 175, 55, 0.09);
  border: 1px solid rgba(212, 175, 55, 0.22);
  padding: 3px 9px;
}

.page-news__time {
  font-family: var(--font-numeric);
  font-size: 12px;
  color: var(--slate-300);
  opacity: 0.82;
}

.page-news__article-title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--off-white);
  margin: 0 0 8px;
  letter-spacing: 0.01em;
}

.page-news__article-summary {
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-300);
  margin: 0 0 10px;
}

.page-news__article-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, color 0.3s;
}

.page-news__article-link span {
  transition: transform 0.3s;
}

.page-news__article-link:hover {
  color: var(--gold-300);
  border-bottom-color: var(--gold-500);
}

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

/* ======= 特色文章（带图） ======= */
.page-news__article--featured {
  display: block;
  margin: 8px 0 4px;
}

.page-news__article--featured .page-news__article-content {
  padding-top: 14px;
}

.page-news__article-media {
  overflow: hidden;
  border: 1px solid var(--pn-line);
  background: var(--navy-900);
}

.page-news__article-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform 0.45s ease;
}

.page-news__article--featured:hover .page-news__article-media img {
  transform: scale(1.02);
}

/* ======= 时间轴 ======= */
.page-news__timeline-banner {
  position: relative;
  margin-bottom: 28px;
  border: 1px solid var(--pn-line);
  overflow: hidden;
  background: var(--navy-900);
}

.page-news__timeline-banner img {
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 5;
  object-fit: cover;
  display: block;
}

.page-news__timeline-banner-label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--off-white);
  background: rgba(11, 22, 38, 0.78);
  padding: 6px 12px;
  border-left: 2px solid var(--gold-500);
}

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

.page-news__timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  padding-bottom: 26px;
}

.page-news__timeline-item::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 54px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(to bottom, rgba(212, 175, 55, 0.45), rgba(168, 179, 199, 0.1));
}

.page-news__timeline-item:last-child::before {
  display: none;
}

.page-news__timeline-ver {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--gold-500);
  background: var(--navy-900);
  border: 1px solid var(--pn-line-strong);
  box-shadow: 4px 4px 0 rgba(212, 175, 55, 0.12);
}

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

.page-news__timeline-content h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--off-white);
  margin: 0 0 8px;
}

.page-news__timeline-content ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news__timeline-content li {
  position: relative;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-300);
  padding-left: 18px;
  margin-bottom: 4px;
}

.page-news__timeline-content li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 7px;
  height: 3px;
  background: var(--gold-500);
}

/* ======= 专题观察 ======= */
.page-news__special-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-news__special-card {
  margin: 0;
  background: var(--pn-panel);
  border: 1px solid var(--pn-line);
  border-top: 2px solid var(--gold-500);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-news__special-card:hover {
  border-color: rgba(212, 175, 55, 0.4);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24);
}

.page-news__special-media {
  overflow: hidden;
  border-bottom: 1px solid var(--pn-line);
}

.page-news__special-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 6;
  object-fit: cover;
  display: block;
}

.page-news__special-body {
  padding: 20px 20px 22px;
}

.page-news__special-tag {
  display: inline-block;
  font-family: var(--font-numeric);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gold-300);
  border-bottom: 1px solid var(--pn-line-strong);
  padding-bottom: 4px;
  margin-bottom: 12px;
}

.page-news__special-body h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--off-white);
  margin: 0 0 10px;
  letter-spacing: 0.02em;
}

.page-news__special-body p {
  font-size: 14px;
  line-height: 1.78;
  color: var(--slate-300);
  margin: 0;
}

.page-news__special-metrics {
  padding: 20px;
  background:
    linear-gradient(135deg, rgba(28, 49, 83, 0.55), rgba(16, 32, 58, 0.9)),
    repeating-linear-gradient(90deg, transparent 0 32px, rgba(168, 179, 199, 0.06) 32px 33px);
  border-bottom: 1px solid var(--pn-line);
}

.page-news__metric-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(168, 179, 199, 0.14);
}

.page-news__metric-row:last-child {
  border-bottom: none;
}

.page-news__metric-num {
  font-family: var(--font-numeric);
  font-size: 32px;
  font-weight: 700;
  color: var(--orange-500);
  line-height: 1;
  min-width: 72px;
}

.page-news__metric-label {
  font-size: 13px;
  color: var(--slate-300);
  line-height: 1.4;
}

/* ======= 右栏 ======= */
.page-news__right {
  margin-top: 16px;
}

.page-news__recent {
  background: var(--pn-panel);
  border: 1px solid var(--pn-line);
  padding: 18px 18px 8px;
  margin-bottom: 28px;
}

.page-news__recent .page-news__section-head {
  margin-bottom: 16px;
  border-bottom-color: rgba(212, 175, 55, 0.18);
}

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

.page-news__recent-item {
  border-bottom: 1px solid rgba(168, 179, 199, 0.1);
}

.page-news__recent-item:last-child {
  border-bottom: none;
}

.page-news__recent-link {
  display: block;
  padding: 14px 4px;
  text-decoration: none;
  transition: background 0.3s;
}

.page-news__recent-link:hover {
  background: rgba(28, 49, 83, 0.35);
}

.page-news__recent-cat {
  display: inline-block;
  font-family: var(--font-numeric);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gold-300);
  border: 1px solid rgba(212, 175, 55, 0.24);
  padding: 2px 6px;
  margin-bottom: 6px;
}

.page-news__recent-text {
  display: block;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--off-white);
  margin-bottom: 4px;
}

.page-news__recent-link:hover .page-news__recent-text {
  color: var(--gold-300);
}

.page-news__recent-item .page-news__time {
  font-size: 11px;
}

/* ======= 公告归档 ======= */
.page-news__archive {
  background: rgba(16, 32, 58, 0.5);
  border: 1px solid var(--pn-line);
  padding: 18px 18px 10px;
  margin-bottom: 28px;
}

.page-news__archive-media {
  margin-bottom: 14px;
  border: 1px solid var(--pn-line);
  overflow: hidden;
}

.page-news__archive-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  display: block;
  opacity: 0.9;
}

.page-news__archive-list {
  display: block;
}

.page-news__archive-item {
  border-bottom: 1px solid rgba(168, 179, 199, 0.11);
}

.page-news__archive-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 2px;
  font-size: 14px;
  font-weight: 600;
  color: var(--off-white);
  transition: color 0.3s;
}

.page-news__archive-item summary::-webkit-details-marker {
  display: none;
}

.page-news__archive-item summary:hover {
  color: var(--gold-300);
}

.page-news__archive-index {
  font-family: var(--font-numeric);
  font-size: 11px;
  color: var(--gold-500);
  border: 1px solid rgba(212, 175, 55, 0.3);
  padding: 2px 6px;
  letter-spacing: 0.06em;
  flex: 0 0 auto;
}

.page-news__archive-item[open] .page-news__archive-index {
  background: rgba(212, 175, 55, 0.14);
}

.page-news__archive-body {
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate-300);
  margin: 0;
  padding: 4px 2px 16px 44px;
}

/* ======= 其他栏目 ======= */
.page-news__more {
  background: rgba(11, 22, 38, 0.6);
  border: 1px solid var(--pn-line);
  padding: 18px;
}

.page-news__more h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--off-white);
}

.page-news__more-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 4px;
  border-bottom: 1px solid rgba(168, 179, 199, 0.1);
  text-decoration: none;
  transition: background 0.3s, padding-left 0.3s;
}

.page-news__more-link:last-child {
  border-bottom: none;
}

.page-news__more-link:hover {
  background: rgba(28, 49, 83, 0.4);
  padding-left: 10px;
}

.page-news__more-link span {
  font-size: 15px;
  font-weight: 600;
  color: var(--off-white);
}

.page-news__more-link small {
  font-family: var(--font-numeric);
  font-size: 11px;
  color: var(--slate-300);
  text-align: right;
  line-height: 1.4;
}

/* ======= 内联 SVG 不存在，可不处理 ======= */

/* ======= 媒体查询 ======= */
@media (min-width: 640px) {
  .page-news__article--featured {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 20px;
    align-items: start;
  }

  .page-news__article--featured .page-news__article-content {
    padding-top: 0;
  }

  .page-news__article-media img {
    aspect-ratio: 4 / 3;
  }
}

@media (min-width: 992px) {
  .page-news__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 348px;
    gap: 36px;
    align-items: start;
  }

  .page-news__right {
    margin-top: 0;
    position: sticky;
    top: 24px;
  }

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

  .page-news__right .page-news__recent,
  .page-news__right .page-news__archive,
  .page-news__right .page-news__more {
    max-height: none;
  }
}

@media (min-width: 1240px) {
  .page-news__layout {
    gap: 48px;
  }

  .page-news__article-title {
    font-size: 23px;
  }

  .page-news__lead {
    font-size: 17px;
  }
}