.page-news {
  --news-rail-gap: clamp(24px, 4vw, 44px);
  --news-stream-gap: clamp(46px, 7vw, 96px);
  background: var(--night);
  color: var(--ink);
  overflow-wrap: break-word;
}

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  padding-block: clamp(24px, 4vw, 44px) clamp(36px, 6vw, 72px);
  border-bottom: 1px solid var(--hair);
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(180, 255, 58, 0.10), transparent 58%),
    radial-gradient(80% 70% at 6% 112%, rgba(255, 90, 43, 0.07), transparent 62%);
}

.page-news .news-masthead-grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  margin-top: clamp(22px, 4vw, 42px);
}

.page-news .news-title {
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 8.2vw, 4.3rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-block: clamp(14px, 2.4vw, 22px) clamp(16px, 2.6vw, 26px);
  max-width: 19ch;
}

.page-news .news-title .slant {
  color: var(--lime);
  font-style: italic;
}

.page-news .news-lede {
  max-width: 46ch;
}

.page-news .news-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .news-board {
  background: linear-gradient(180deg, var(--panel), var(--raised));
  border: 1px solid var(--hair);
  border-radius: var(--radius-card);
  padding: clamp(16px, 3vw, 24px);
  box-shadow: var(--shadow-float);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--radius-slab);
  overflow: hidden;
  margin-top: 14px;
}

.page-news .news-stats .stat {
  background: var(--panel);
  padding: 15px 13px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.page-news .news-stats .stat-num {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 5vw, 2rem);
  line-height: 1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.page-news .news-stats .stat:nth-child(2) .stat-num { color: var(--amber); }
.page-news .news-stats .stat:nth-child(3) .stat-num { color: var(--cyan); }
.page-news .news-stats .stat:nth-child(4) .stat-num { color: var(--ink); }

.page-news .news-stats .stat-label {
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--muted);
}

.page-news .stat-unit {
  font-size: 0.52em;
  margin-left: 3px;
  letter-spacing: 0;
}

@media (min-width: 900px) {
  .page-news .news-masthead-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

/* ---------- 主栅格 ---------- */
.page-news .news-layout {
  display: grid;
  gap: var(--news-rail-gap);
  padding-block: clamp(36px, 6vw, 76px) 0;
}

.page-news .news-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-news .rail-card {
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: var(--radius-slab);
  padding: 16px 16px 18px;
}

.page-news .rail-index {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .rail-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: var(--radius-capsule);
  border: 1px solid var(--hair);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-news .rail-index a:hover,
.page-news .rail-index a:focus-visible {
  background: var(--raised);
  border-color: rgba(180, 255, 58, 0.45);
  color: var(--lime);
}

.page-news .rail-dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  display: inline-block;
  flex: none;
  background: var(--muted);
}

.page-news .rail-dot-lime { background: var(--lime); }
.page-news .rail-dot-ember { background: var(--ember); }
.page-news .rail-dot-cyan { background: var(--cyan); }
.page-news .rail-dot-amber { background: var(--amber); }

.page-news .rail-fold {
  border-top: 1px solid var(--hair);
  padding-top: 10px;
  margin-top: 10px;
}

.page-news .rail-fold:first-of-type {
  border-top: 0;
  margin-top: 12px;
  padding-top: 0;
}

.page-news .rail-fold-summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.86rem;
  color: var(--ink);
}

.page-news .rail-fold-summary::-webkit-details-marker { display: none; }

.page-news .rail-fold-summary::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 1rem;
  line-height: 1;
  color: var(--lime);
}

.page-news .rail-fold[open] .rail-fold-summary::after { content: "–"; }

.page-news .rail-fold-body {
  padding-top: 10px;
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--muted);
  animation: newsFadeIn 0.32s var(--ease) both;
}

.page-news .rail-fold-body .link-arrow {
  margin-top: 8px;
  font-size: 0.82rem;
}

@keyframes newsFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 条目流 ---------- */
.page-news .news-stream {
  display: flex;
  flex-direction: column;
  gap: var(--news-stream-gap);
  min-width: 0;
}

.page-news .news-block {
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 3vw, 32px);
  min-width: 0;
}

.page-news .news-block-head {
  max-width: 62ch;
}

.page-news .news-block-head .display-2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.6vw, 2.4rem);
  line-height: 1.22;
  margin-block: 10px 12px;
  letter-spacing: -0.01em;
}

.page-news .issue-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-news .issue-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: 22px 0;
  border-top: 1px solid var(--hair);
  transition: background 0.3s var(--ease);
}

.page-news .issue-item:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-news .issue-no {
  font-family: var(--font-num);
  font-size: clamp(1.4rem, 4.4vw, 2rem);
  line-height: 1;
  color: rgba(147, 163, 157, 0.55);
  font-variant-numeric: tabular-nums;
  grid-row: span 2;
  padding-top: 2px;
}

.page-news .issue-body {
  grid-column: 2;
  min-width: 0;
}

.page-news .issue-time {
  grid-column: 2;
  color: var(--muted-deep);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

.page-news .issue-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-news .tag-square {
  width: 7px;
  height: 7px;
  display: inline-block;
  flex: none;
  background: var(--lime);
}

.page-news .tag-lime { background: var(--lime); }
.page-news .tag-ember { background: var(--ember); }
.page-news .tag-cyan { background: var(--cyan); }
.page-news .tag-amber { background: var(--amber); }

.page-news .issue-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.06rem, 3.1vw, 1.36rem);
  line-height: 1.45;
  margin: 9px 0 9px;
}

.page-news .issue-title a {
  color: var(--ink);
  text-decoration: none;
  background-image: linear-gradient(var(--lime), var(--lime));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 2px;
  transition: background-size 0.34s var(--ease), color 0.24s var(--ease);
}

.page-news .issue-title a:hover,
.page-news .issue-title a:focus-visible {
  color: var(--lime);
  background-size: 100% 2px;
}

.page-news .issue-body .body-copy {
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- 数据条 ---------- */
.page-news .news-databar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--radius-slab);
  overflow: hidden;
}

.page-news .databar-item {
  background: var(--panel);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-news .databar-num {
  font-family: var(--font-num);
  font-size: clamp(1.6rem, 5.2vw, 2.35rem);
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-news .databar-item:nth-child(1) .databar-num { color: var(--lime); }
.page-news .databar-item:nth-child(2) .databar-num { color: var(--ink); }
.page-news .databar-item:nth-child(3) .databar-num { color: var(--cyan); }
.page-news .databar-item:nth-child(4) .databar-num { color: var(--ember); }

.page-news .databar-label {
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-news .news-databar {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 图片 ---------- */
.page-news .media-frame {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--panel);
}

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

.page-news .media-frame figcaption {
  padding: 12px 16px 14px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted-deep);
  border-top: 1px solid var(--hair);
}

.page-news .news-log-figure figcaption,
.page-news .news-stage-figure figcaption,
.page-news .news-adapt-figure figcaption {
  background: var(--night);
}

/* ---------- 笔记列表 ---------- */
.page-news .note-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--radius-slab);
  overflow: hidden;
}

.page-news .note-item {
  background: var(--panel);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background 0.3s var(--ease);
}

.page-news .note-item:hover {
  background: var(--raised);
}

.page-news .note-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-news .note-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .note-time {
  font-family: var(--font-num);
  font-size: 0.78rem;
  color: var(--lime);
  white-space: nowrap;
}

.page-news .note-text {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.75;
  color: var(--muted);
}

@media (min-width: 780px) {
  .page-news .note-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 公告日志 ---------- */
.page-news .news-log-layout {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.page-news .log-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  position: relative;
}

.page-news .log-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime), var(--amber) 42%, var(--ember) 78%, var(--hair));
}

.page-news .log-node {
  position: relative;
  padding-bottom: 26px;
}

.page-news .log-node:last-child {
  padding-bottom: 0;
}

.page-news .log-node::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--night);
  border: 2px solid var(--lime);
  box-shadow: 0 0 0 4px rgba(180, 255, 58, 0.12);
}

.page-news .log-node-ember::before {
  border-color: var(--ember);
  box-shadow: 0 0 0 4px rgba(255, 90, 43, 0.14);
}

.page-news .log-node-amber::before {
  border-color: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 194, 75, 0.14);
}

.page-news .log-node-cyan::before {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(78, 216, 208, 0.14);
}

.page-news .log-stage {
  margin: 0 0 5px;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-news .log-node-ember .log-stage { color: var(--ember); }
.page-news .log-node-amber .log-stage { color: var(--amber); }
.page-news .log-node-cyan .log-stage { color: var(--cyan); }

.page-news .log-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
}

.page-news .log-text {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 52ch;
}

@media (min-width: 880px) {
  .page-news .news-log-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

/* ---------- 标签切换 ---------- */
.page-news .news-tabs {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-news .tab-rail {
  display: inline-flex;
  align-self: flex-start;
  gap: 6px;
  padding: 5px;
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: var(--radius-capsule);
}

.page-news .tab-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.86rem;
  padding: 9px 18px;
  border-radius: var(--radius-capsule);
  cursor: pointer;
  transition: background 0.24s var(--ease), color 0.24s var(--ease);
}

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

.page-news .tab-btn[aria-selected="true"] {
  background: var(--lime);
  color: var(--night);
  font-weight: 600;
}

.page-news .tab-btn:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

.page-news .tab-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-news .tab-panel[hidden] {
  display: none;
}

/* ---------- 专栏幕后 ---------- */
.page-news .backstage-grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 36px);
}

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

.page-news .stage-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--hair);
}

.page-news .stage-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .stage-no {
  font-family: var(--font-num);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-news .stage-title {
  margin: 0 0 4px;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--ink);
}

.page-news .stage-text {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.75;
  color: var(--muted);
}

@media (min-width: 880px) {
  .page-news .backstage-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 订阅带 ---------- */
.page-news .news-subscribe {
  margin-top: clamp(52px, 8vw, 104px);
  padding-block: clamp(30px, 5vw, 58px) clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--hair);
  background:
    linear-gradient(180deg, rgba(180, 255, 58, 0.06), transparent 62%),
    var(--night);
}

.page-news .subscribe-grid {
  display: grid;
  gap: clamp(20px, 3.5vw, 40px);
}

.page-news .subscribe-grid .display-2 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 4.4vw, 2.2rem);
  line-height: 1.24;
  margin-block: 10px 12px;
}

.page-news .subscribe-grid .body-copy {
  max-width: 58ch;
}

.page-news .subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: start;
}

@media (min-width: 880px) {
  .page-news .subscribe-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 3fr);
    align-items: end;
  }
}

/* ---------- 桌面端侧栏 ---------- */
@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-news .news-rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-news .rail-index {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-news .rail-index a {
    border-color: transparent;
    border-radius: var(--radius-slab);
  }

  .page-news .issue-item {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    gap: 4px 20px;
  }

  .page-news .issue-time {
    grid-column: 3;
    grid-row: 1;
    align-self: start;
    padding-top: 4px;
  }
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 420px) {
  .page-news .news-title {
    font-size: 1.95rem;
  }

  .page-news .news-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .tab-rail {
    width: 100%;
    justify-content: space-between;
  }

  .page-news .tab-btn {
    flex: 1 1 auto;
    padding: 9px 10px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .issue-title a,
  .page-news .note-item,
  .page-news .rail-index a,
  .page-news .tab-btn {
    transition: none;
  }

  .page-news .rail-fold-body {
    animation: none;
  }
}