.page-news {
  --news-teal: #2F6B5E;
  --news-deep: #1C4A40;
  --news-gold: #C29B62;
  --news-red: #D14D3A;
  --news-line: #E2D9C6;
  --news-paper: #F7F3E9;
  --news-ink: #1F1F1F;
  --news-soft: #EDF1E7;
  padding-bottom: 96px;
  overflow-x: hidden;
}

/* ===== 面包屑 ===== */
.page-news .breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--news-teal);
}

.page-news .breadcrumb a {
  color: var(--news-teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 107, 94, 0.3);
  transition: border-color 0.25s ease;
}

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

.page-news .breadcrumb__sep {
  margin: 0 8px;
  color: var(--news-gold);
}

.page-news .breadcrumb [aria-current="page"] {
  color: var(--news-ink);
  font-weight: 500;
}

/* ===== Hero 首屏 ===== */
.page-news__hero {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px 36px;
  display: grid;
  gap: 32px;
  background: linear-gradient(180deg, rgba(221, 229, 218, 0.45) 0%, rgba(247, 243, 233, 0) 100%);
  border-bottom: 1px solid var(--news-line);
}

.page-news__hero::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 24px;
  right: 24px;
  height: 3px;
  background: linear-gradient(90deg, var(--news-teal) 0%, var(--news-gold) 70%, transparent 100%);
}

.page-news__hero-text {
  max-width: 700px;
}

.page-news__kicker {
  font-family: var(--font-title);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--news-gold);
  margin: 0 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--news-gold);
}

.page-news__hero-text h1 {
  font-family: var(--font-title);
  font-size: clamp(2rem, 5.2vw, 3.5rem);
  font-weight: 900;
  line-height: 1.18;
  color: var(--news-ink);
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}

.page-news__lead {
  font-size: 16px;
  line-height: 1.75;
  color: #3A3A3A;
  margin: 0;
}

.page-news__lead a {
  color: var(--news-teal);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 107, 94, 0.35);
  transition: border-color 0.25s ease;
}

.page-news__lead a:hover {
  border-color: var(--news-teal);
}

.page-news__hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 0;
}

.page-news__stat {
  border: 1px solid var(--news-line);
  background: rgba(255, 255, 255, 0.55);
  padding: 18px 12px 14px;
  text-align: center;
  border-top: 3px solid var(--news-gold);
  margin: 0;
}

.page-news__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--news-teal);
  line-height: 1;
  margin-bottom: 8px;
}

.page-news__stat-label {
  font-size: 0.8125rem;
  color: #666;
  line-height: 1.4;
  margin: 0;
}

/* ===== 标签页 ===== */
.page-news__tabs {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-news__tab-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--news-gold);
  margin-bottom: 40px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news__tab-nav::-webkit-scrollbar {
  display: none;
}

.page-news__tab-btn {
  font-family: var(--font-title);
  font-size: 1.0625rem;
  font-weight: 700;
  padding: 14px 28px;
  background: transparent;
  border: none;
  color: #666;
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  transition: color 0.3s ease;
}

.page-news__tab-btn:hover {
  color: var(--news-ink);
}

.page-news__tab-btn[aria-selected="true"] {
  color: var(--news-deep);
}

.page-news__tab-btn[aria-selected="true"]::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--news-deep);
}

/* ===== 面板通用 ===== */
.page-news__panel {
  display: block;
  margin-bottom: 56px;
}

.page-news__panel--themes {
  margin-top: 48px;
}

.page-news__panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  border-left: 4px solid var(--news-teal);
  padding-left: 16px;
}

.page-news__panel-head h2 {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--news-ink);
}

.page-news__panel-head p {
  margin: 0;
  font-size: 0.9375rem;
  color: #555;
  line-height: 1.6;
}

.page-news__record-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--news-teal);
  padding: 4px 14px;
  border: 1px solid rgba(47, 107, 94, 0.3);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.4);
  white-space: nowrap;
  flex-shrink: 0;
}

.page-news__record-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--news-teal);
}

/* ===== 横幅图片 ===== */
.page-news__banner-img,
.page-news__themes-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--news-line);
}

.page-news__banner-img {
  margin-bottom: 40px;
}

.page-news__themes-img {
  margin-bottom: 32px;
}

/* ===== 更新列表分屏 ===== */
.page-news__split {
  display: grid;
  gap: 40px;
}

.page-news__index {
  border: 1px solid var(--news-line);
  border-top: 4px solid var(--news-teal);
  background: rgba(255, 255, 255, 0.45);
  padding: 24px;
}

.page-news__index-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  border-bottom: 1px dashed var(--news-gold);
  padding-bottom: 12px;
}

.page-news__index-head h3 {
  font-family: var(--font-title);
  font-size: 1.125rem;
  font-weight: 800;
  margin: 0;
  color: var(--news-ink);
}

.page-news__index-head span {
  font-size: 0.8125rem;
  color: #888;
  white-space: nowrap;
}

.page-news__update-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: update-counter;
}

.page-news__update-item {
  --item-color: var(--news-line);
  counter-increment: update-counter;
  position: relative;
  padding: 18px 0 18px 52px;
  border-bottom: 1px solid rgba(226, 217, 198, 0.6);
  transition: background 0.3s ease;
}

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

.page-news__update-item::before {
  content: counter(update-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--news-gold);
  text-align: right;
  width: 30px;
}

.page-news__update-item::after {
  content: "";
  position: absolute;
  left: 39px;
  top: 17px;
  bottom: 17px;
  width: 3px;
  background: var(--item-color);
  border-radius: 2px;
}

.page-news__update-item:hover {
  background: rgba(47, 107, 94, 0.04);
}

.page-news__update-item--calib { --item-color: var(--news-gold); }
.page-news__update-item--version { --item-color: var(--news-teal); }
.page-news__update-item--catalog { --item-color: #8B9D83; }
.page-news__update-item--data { --item-color: var(--news-red); }

.page-news__phase {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: #666;
  background: #F0EDE3;
  padding: 2px 8px;
  border-radius: 2px;
  margin-bottom: 6px;
}

.page-news__update-item h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--news-ink);
  margin: 0 0 4px;
  line-height: 1.5;
}

.page-news__update-item p {
  font-size: 0.8125rem;
  color: #666;
  line-height: 1.6;
  margin: 0;
}

/* ===== 预览区 ===== */
.page-news__preview {
  min-width: 0;
}

.page-news__preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.page-news__preview-head h3 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0;
  color: var(--news-ink);
}

.page-news .seal {
  font-size: 12px;
  padding: 5px 12px;
  letter-spacing: 0.06em;
}

.page-news__preview-card {
  border: 1px solid var(--news-line);
  box-shadow: 0 12px 32px rgba(27, 27, 27, 0.06);
  padding: 28px;
  position: relative;
  background: #fff;
}

.page-news__preview-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--news-teal) 0%, var(--news-gold) 60%, transparent 100%);
}

.page-news__preview-card h4 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 0 12px;
  color: var(--news-deep);
}

.page-news__preview-card p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: #444;
  margin: 0 0 12px;
}

.page-news__preview-card p:last-of-type {
  margin-bottom: 0;
}

.page-news__preview-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  margin-top: 20px;
  border: 1px solid var(--news-line);
}

/* ===== 专题观察表格 ===== */
.page-news__table-wrap {
  overflow-x: auto;
  border: 1px solid var(--news-line);
  background: #fff;
  box-shadow: 0 8px 24px rgba(27, 27, 27, 0.04);
}

.page-news__themes-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.page-news__themes-table caption {
  text-align: left;
  padding: 16px 20px;
  font-family: var(--font-title);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--news-ink);
  background: var(--news-paper);
  border-bottom: 1px solid var(--news-line);
  caption-side: top;
}

.page-news__themes-table th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #666;
  background: #F0EDE3;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 2px solid var(--news-gold);
  white-space: nowrap;
}

.page-news__themes-table td {
  padding: 14px 16px;
  font-size: 0.875rem;
  color: #333;
  border-bottom: 1px solid var(--news-line);
  vertical-align: middle;
  line-height: 1.5;
}

.page-news__themes-table tbody tr {
  transition: background 0.25s ease;
}

.page-news__themes-table tbody tr:hover {
  background: rgba(47, 107, 94, 0.06);
}

.page-news__themes-table tbody tr:hover td:first-child {
  box-shadow: inset 3px 0 0 var(--news-teal);
}

.page-news__themes-table tbody tr:last-child td {
  border-bottom: none;
}

.page-news__theme-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 3px;
  white-space: nowrap;
}

.page-news__theme-tag--rhythm { background: #E8EDE4; color: var(--news-teal); }
.page-news__theme-tag--lineup { background: #F4E9D7; color: #9C7A2F; }
.page-news__theme-tag--feedback { background: #F6E5DE; color: #C2563A; }
.page-news__theme-tag--govern { background: #EAE6F2; color: #5B4A8C; }

.page-news__status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

.page-news__status-dot--active {
  background: var(--news-teal);
  box-shadow: 0 0 0 3px rgba(47, 107, 94, 0.15);
}

.page-news__status-dot--done {
  background: var(--news-gold);
  box-shadow: 0 0 0 3px rgba(194, 155, 98, 0.15);
}

/* ===== 补充说明 details ===== */
.page-news__note {
  margin-top: 24px;
  border: 1px dashed var(--news-gold);
  background: rgba(247, 243, 233, 0.5);
  padding: 16px 20px;
}

.page-news__note summary {
  font-family: var(--font-title);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--news-teal);
  cursor: pointer;
  padding: 4px 0;
  list-style: none;
}

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

.page-news__note summary::before {
  content: "＋";
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  color: var(--news-gold);
  transition: transform 0.3s ease;
}

.page-news__note[open] summary::before {
  transform: rotate(45deg);
}

.page-news__note p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: #555;
  margin: 12px 0 4px;
  padding-top: 12px;
  border-top: 1px solid rgba(226, 217, 198, 0.6);
}

/* ===== 发布节奏说明 ===== */
.page-news__rhythm {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px 0;
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-news__rhythm-text {
  border-top: 4px solid var(--news-teal);
  padding-top: 24px;
}

.page-news__rhythm-text h2 {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--news-deep);
  margin: 0 0 16px;
}

.page-news__rhythm-text > p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: #555;
}

.page-news__rhythm-list {
  list-style: none;
  margin: 24px 0;
  padding: 0;
}

.page-news__rhythm-list li {
  position: relative;
  padding: 10px 0 10px 28px;
  border-bottom: 1px solid rgba(226, 217, 198, 0.7);
  font-size: 0.875rem;
  line-height: 1.65;
  color: #3A3A3A;
}

.page-news__rhythm-list li:last-child {
  border-bottom: none;
}

.page-news__rhythm-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 14px;
  height: 2px;
  background: var(--news-gold);
}

.page-news__rhythm-list strong {
  color: var(--news-deep);
  font-weight: 600;
}

.page-news__rhythm-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news__rhythm-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--news-line);
  box-shadow: 0 12px 32px rgba(27, 27, 27, 0.06);
}

/* ===== 桌面端媒体查询 ===== */
@media (min-width: 900px) {
  .page-news__hero {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: end;
    padding: 64px 24px 56px;
  }

  .page-news__hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .page-news__split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 48px;
    align-items: start;
  }

  .page-news__preview {
    position: sticky;
    top: 88px;
  }

  .page-news__rhythm {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    padding-top: 72px;
  }
}

@media (min-width: 1280px) {
  .page-news__hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}