.page-news {
  --news-shadow: 0 18px 40px -30px rgba(14, 42, 71, .55);
  background: var(--paper);
  overflow-x: clip;
}

/* ---------- 面包屑与首屏 ---------- */

.page-news .news-crumb-wrap {
  padding-top: clamp(86px, 12vw, 124px);
}

.page-news .news-hero {
  padding: clamp(26px, 4vw, 44px) 0 clamp(44px, 6vw, 76px);
}

.page-news .news-hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(46px, 11vw, 124px);
  line-height: .94;
  letter-spacing: -.015em;
  color: var(--ink);
  margin: 10px 0 0;
  transform: scaleX(.88);
  transform-origin: left center;
  max-width: 100%;
}

.page-news .news-hero-lead {
  max-width: 34em;
  margin: 22px 0 0;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--graphite);
}

.page-news .hero-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-news .hero-meta > div {
  background: var(--card);
  padding: 16px 20px;
}

.page-news .hero-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink-mist);
}

.page-news .hero-meta dd {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}

/* ---------- 本季度提要（深色面板） ---------- */

.page-news .qd-panel {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-radius: var(--r-lg);
  padding: clamp(26px, 5vw, 60px);
  box-shadow: var(--news-shadow);
}

.page-news .qd-panel::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(212, 162, 76, .28);
  pointer-events: none;
}

.page-news .qd-panel .section-title {
  color: var(--paper);
}

.page-news .qd-panel .section-lead {
  color: rgba(245, 241, 232, .78);
}

.page-news .qd-panel .section-kicker {
  color: var(--gold);
}

.page-news .qd-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(26px, 4vw, 42px);
  position: relative;
  z-index: 1;
}

.page-news .qd-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: qd;
  display: grid;
  gap: 14px;
}

.page-news .qd-item {
  position: relative;
  counter-increment: qd;
  padding: 18px 20px 18px 54px;
  border-radius: var(--r-md);
  background: rgba(255, 253, 248, .06);
  border: 1px solid rgba(212, 162, 76, .26);
}

.page-news .qd-item::before {
  content: counter(qd, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-news .qd-time {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold-soft);
  margin-bottom: 8px;
}

.page-news .qd-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.45;
  color: var(--paper);
}

.page-news .qd-text {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(245, 241, 232, .72);
  max-width: 38em;
}

.page-news .qd-figure {
  margin: 0;
}

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

.page-news .qd-figure .media-caption {
  color: rgba(245, 241, 232, .62);
}

/* ---------- 更新记录双栏 ---------- */

.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 50px);
  margin-top: clamp(24px, 4vw, 42px);
}

.page-news .news-stream {
  min-width: 0;
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hair);
}

.page-news .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border-radius: var(--r-pill);
  border: 1px solid var(--hair);
  background: var(--card);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--t) var(--ease), color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-news .filter-btn:hover {
  border-color: var(--ink-mid);
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold-soft);
}

.page-news .filter-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brick);
}

.page-news .filter-btn[aria-pressed="true"] .filter-count {
  color: var(--gold);
}

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

.page-news .stream-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(22px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--hair);
}

.page-news .stream-item:last-child {
  border-bottom: 0;
}

.page-news .stream-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--brick);
  padding-top: 2px;
}

.page-news .stream-body {
  min-width: 0;
}

.page-news .stream-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 10px;
}

.page-news .stream-time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--ink-mist);
}

.page-news .tag {
  display: inline-block;
  padding: 3px 11px;
  border-radius: var(--r-pill);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  border: 1px solid currentColor;
  line-height: 1.6;
}

.page-news .tag--version { color: var(--ink-mid); }
.page-news .tag--doc { color: #A87C2C; background: rgba(212, 162, 76, .14); }
.page-news .tag--service { color: var(--brick); }
.page-news .tag--partner { color: var(--ink-mist); }

.page-news .stream-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.38;
  color: var(--ink);
  letter-spacing: -.01em;
}

.page-news .stream-item--figure .stream-title {
  font-size: clamp(17px, 1.9vw, 20px);
}

.page-news .stream-text {
  margin: 10px 0 0;
  max-width: 38em;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-news .stream-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--gold);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-news .stream-link::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-news .stream-link:hover {
  color: var(--brick);
  border-color: var(--brick);
}

.page-news .stream-figure {
  margin: 6px 0 0;
}

.page-news .stream-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
  border: 1px solid var(--hair);
}

.page-news .stream-figcap {
  margin-top: 12px;
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-mist);
  max-width: 36em;
  border-left: 2px solid var(--gold-soft);
  padding-left: 14px;
}

/* ---------- 右侧迷你时间轴 ---------- */

.page-news .news-rail {
  min-width: 0;
}

.page-news .rail-card {
  background: var(--card);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3vw, 28px);
  box-shadow: var(--news-shadow);
}

.page-news .rail-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--ink-mist);
}

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

.page-news .mini-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--hair);
}

.page-news .mt-item {
  position: relative;
  padding: 0 0 20px 26px;
}

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

.page-news .mt-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--hair);
}

.page-news .mt-item--now::before {
  background: var(--gold);
  border-color: var(--gold);
}

.page-news .mt-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14.5px;
  color: var(--ink);
}

.page-news .mt-item--now .mt-label {
  color: var(--ink);
}

.page-news .mt-note {
  display: block;
  margin-top: 5px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-news .rail-cta {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}

.page-news .rail-cta .btn {
  display: block;
  width: 100%;
  text-align: center;
}

/* ---------- 专题系列 ---------- */

.page-news .series-section {
  margin-top: clamp(56px, 8vw, 100px);
  padding: clamp(44px, 7vw, 88px) 0;
  background: var(--ink-deep);
}

.page-news .series-section .section-title {
  color: var(--paper);
}

.page-news .series-section .section-lead {
  color: rgba(245, 241, 232, .74);
}

.page-news .series-section .section-kicker {
  color: var(--gold);
}

.page-news .series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 30px);
  border-radius: var(--r-lg);
  background: rgba(255, 253, 248, .05);
  border: 1px solid rgba(212, 162, 76, .25);
}

.page-news .series-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-news .series-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 24px);
  color: var(--paper);
}

.page-news .series-text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(245, 241, 232, .72);
}

.page-news .series-links {
  list-style: none;
  margin: auto 0 0;
  padding: 16px 0 0;
  border-top: 1px solid rgba(207, 199, 184, .22);
  display: grid;
  gap: 9px;
}

.page-news .series-links a {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  font-family: var(--font-display);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--gold-soft);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.page-news .series-links a::before {
  content: "↳";
  color: var(--gold);
  font-family: var(--font-mono);
  flex: none;
}

.page-news .series-links a:hover {
  color: #FFFFFF;
}

/* ---------- 返回顶部 ---------- */

.page-news .back-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 30;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--gold);
  border: 1px solid rgba(212, 162, 76, .45);
  font-size: 17px;
  text-decoration: none;
  box-shadow: 0 14px 28px -16px rgba(8, 25, 43, .75);
  transition: transform var(--t) var(--ease), background var(--t) var(--ease);
}

.page-news .back-top:hover {
  transform: translateY(-3px);
  background: var(--ink-mid);
}

/* ---------- 筛选过渡 ---------- */

.page-news .stream-item.is-filtered-out {
  display: none;
}

.page-news .stream-item.is-filter-in {
  animation: newsItemIn 240ms var(--ease) both;
}

@keyframes newsItemIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-news .hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 640px) {
  .page-news .stream-item {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 22px;
  }
  .page-news .stream-index {
    padding-top: 4px;
  }
}

@media (min-width: 760px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-news .qd-grid {
    grid-template-columns: 1.02fr .98fr;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-news .news-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
  .page-news .news-rail {
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .stream-item.is-filter-in {
    animation: none;
  }
  .page-news .back-top,
  .page-news .filter-btn,
  .page-news .stream-link {
    transition: none;
  }
}