.page-news {
  --news-gutter: clamp(16px, 4vw, 48px);
  --news-bar-w: 6px;
  background: var(--c-paper);
  color: var(--c-text);
  overflow-x: hidden;
}

/* ---------- HERO ---------- */
.page-news .upd-hero {
  background: var(--c-indigo);
  color: var(--c-text-dark);
  padding: clamp(24px, 5vw, 56px) var(--news-gutter) 0;
}

.page-news .upd-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 48px);
  max-width: var(--w-wide);
  margin: 0 auto;
}

.page-news .upd-hero-lead { max-width: 760px; }

.page-news .breadcrumbs {
  display: flex;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
  color: rgba(233, 238, 247, 0.6);
}
.page-news .breadcrumbs a {
  color: rgba(233, 238, 247, 0.6);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-news .breadcrumbs a:hover { color: var(--c-cyan); }

.page-news .upd-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin: 0 0 14px;
}

.page-news .upd-hero h1 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  color: #fff;
}

.page-news .upd-lead-text {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(233, 238, 247, 0.82);
  margin: 0 0 26px;
  max-width: var(--w-narrow);
}

.page-news .upd-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .upd-hero-media { width: 100%; }
.page-news .upd-hero-media .media-frame { width: 100%; }

/* 季度轴 */
.page-news .upd-axis {
  max-width: var(--w-wide);
  margin: clamp(32px, 5vw, 56px) auto 0;
  border-top: 1px solid rgba(233, 238, 247, 0.16);
  padding-top: 18px;
}

.page-news .upd-axis-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}
.page-news .upd-axis-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(233, 238, 247, 0.55);
}
.page-news .upd-axis-current {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-orange);
  border: 1px solid rgba(255, 107, 53, 0.5);
  padding: 2px 10px;
  border-radius: var(--radius);
}

.page-news .upd-axis-track {
  list-style: none;
  margin: 0 0 -1px;
  padding: 0 0 2px;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.page-news .upd-axis-node {
  flex: 0 0 auto;
  scroll-snap-align: start;
  position: relative;
}
.page-news .upd-axis-node::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: rgba(233, 238, 247, 0.18);
}
.page-news .upd-axis-node.is-active::after { background: var(--c-orange); }

.page-news .upd-node-btn {
  appearance: none;
  background: transparent;
  border: 0;
  border-right: 1px solid rgba(233, 238, 247, 0.14);
  color: rgba(233, 238, 247, 0.65);
  font-family: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  padding: 12px 20px 14px;
  min-width: 112px;
  text-align: left;
  transition: color 180ms var(--ease), background 180ms var(--ease);
}
.page-news .upd-node-btn:hover { color: #fff; background: rgba(255, 255, 255, 0.04); }
.page-news .upd-axis-node.is-active .upd-node-btn { color: #fff; }
.page-news .upd-node-q {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.page-news .upd-node-tag {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(233, 238, 247, 0.5);
}
.page-news .upd-axis-node.is-active .upd-node-tag { color: var(--c-cyan); }

/* ---------- 季度摘要 ---------- */
.page-news .upd-summary {
  position: relative;
  background: var(--c-ink);
  color: var(--c-text-dark);
  padding: clamp(40px, 7vw, 84px) var(--news-gutter);
  overflow: hidden;
}
.page-news .upd-watermark {
  position: absolute;
  top: -0.18em;
  right: -0.04em;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(140px, 30vw, 400px);
  line-height: 1;
  color: rgba(46, 66, 114, 0.35);
  pointer-events: none;
  user-select: none;
}
.page-news .upd-summary-inner {
  position: relative;
  max-width: var(--w-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

.page-news .upd-sec-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin: 0 0 10px;
}
.page-news .upd-sec-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0;
  color: #fff;
}
.page-news .upd-sec-head--split {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}

.page-news .upd-summary-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(233, 238, 247, 0.14);
}
.page-news .upd-summary-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(14px, 3vw, 32px);
  padding: clamp(20px, 3vw, 32px) 0;
  border-bottom: 1px solid rgba(233, 238, 247, 0.14);
}
.page-news .upd-summary-num {
  font-size: 15px;
  align-self: start;
  margin-top: 4px;
}
.page-news .upd-summary-body h3 {
  font-family: var(--font-heading);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.35;
  margin: 0 0 10px;
  color: #fff;
}
.page-news .upd-summary-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 238, 247, 0.72);
  max-width: var(--w-narrow);
}

/* ---------- 条目清单 ---------- */
.page-news .upd-log {
  background: var(--c-paper);
  padding: clamp(40px, 7vw, 84px) var(--news-gutter);
}
.page-news .upd-log-inner { max-width: var(--w-wide); margin: 0 auto; }
.page-news .upd-log .upd-sec-head h2 { color: var(--c-text); }
.page-news .upd-log .upd-sec-kicker { color: var(--c-orange-text); }

.page-news .upd-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .upd-chip {
  appearance: none;
  background: transparent;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  color: var(--c-indigo-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 7px 14px;
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}
.page-news .upd-chip:hover { border-color: var(--c-indigo-soft); color: var(--c-indigo); }
.page-news .upd-chip.is-on {
  background: var(--c-indigo);
  border-color: var(--c-indigo);
  color: #fff;
}

.page-news .upd-log-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-news .upd-entry {
  position: relative;
  background: #fff;
  border: var(--line);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 30px) clamp(16px, 3vw, 32px) clamp(18px, 3vw, 30px) calc(clamp(16px, 3vw, 32px) + var(--news-bar-w));
  overflow: hidden;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.page-news .upd-entry:hover {
  border-color: var(--c-indigo-soft);
  box-shadow: 0 2px 0 0 var(--c-grid);
}
.page-news .upd-entry-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--news-bar-w);
  background: var(--c-indigo-mid);
}
.page-news .upd-entry--delivery .upd-entry-bar { background: var(--c-orange); }
.page-news .upd-entry--param .upd-entry-bar { background: var(--c-indigo-mid); }
.page-news .upd-entry--policy .upd-entry-bar { background: var(--c-indigo-soft); }
.page-news .upd-entry--case .upd-entry-bar { background: var(--c-ink); }

.page-news .upd-entry-main { display: flex; flex-direction: column; gap: 12px; }
.page-news .upd-entry-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.page-news .upd-entry-q {
  font-size: 12px;
  color: var(--c-indigo-soft);
}
.page-news .upd-entry h3 {
  font-family: var(--font-heading);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.35;
  margin: 0;
  color: var(--c-text);
}
.page-news .upd-entry p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #3A4457;
  max-width: var(--w-narrow);
}
.page-news .upd-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.page-news .upd-facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-indigo);
  background: var(--c-paper);
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  padding: 5px 10px;
}
.page-news .upd-entry-more {
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.page-news .upd-entry-more a {
  color: var(--c-orange-text);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 67, 26, 0.35);
}
.page-news .upd-entry-more a:hover { border-bottom-color: var(--c-orange-text); }

.page-news .upd-entry-media { margin-top: 16px; }

/* ---------- 历史版本快照 ---------- */
.page-news .upd-snap {
  background: var(--c-indigo);
  color: var(--c-text-dark);
  padding: clamp(40px, 7vw, 84px) var(--news-gutter);
}
.page-news .upd-snap-inner { max-width: var(--w-wide); margin: 0 auto; }
.page-news .upd-snap-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}
.page-news .upd-snap-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(233, 238, 247, 0.16);
  color: var(--c-text-dark);
}
.page-news .upd-snap-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid rgba(233, 238, 247, 0.12);
}
.page-news .upd-snap-q {
  background: transparent;
  border-color: rgba(0, 229, 199, 0.5);
  color: var(--c-cyan);
  font-size: 13px;
  padding: 4px 10px;
}
.page-news .upd-snap-title {
  font-family: var(--font-heading);
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.4;
  color: #fff;
}
.page-news .upd-snap-toggle {
  appearance: none;
  background: transparent;
  border: 1px solid rgba(233, 238, 247, 0.28);
  border-radius: var(--radius);
  color: rgba(233, 238, 247, 0.8);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 6px 12px;
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}
.page-news .upd-snap-toggle:hover {
  color: var(--c-ink);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}
.page-news .upd-snap-panel[hidden] { display: none; }
.page-news .upd-snap-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-news .upd-snap-lines li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(233, 238, 247, 0.78);
}

/* ---------- 参数校准 ---------- */
.page-news .upd-param {
  background: #fff;
  padding: clamp(40px, 7vw, 84px) var(--news-gutter);
}
.page-news .upd-param-inner {
  max-width: var(--w-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
}
.page-news .upd-param .upd-sec-kicker { color: var(--c-orange-text); }
.page-news .upd-param h2 {
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.2;
  margin: 0 0 16px;
  color: var(--c-text);
}
.page-news .upd-param-lead {
  font-size: 15px;
  line-height: 1.85;
  color: #3A4457;
  max-width: var(--w-narrow);
  margin: 0 0 26px;
}
.page-news .upd-param-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  border-top: var(--line);
}
.page-news .upd-param-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: var(--line);
}
.page-news .upd-param-name {
  font-family: var(--font-heading);
  font-size: 17px;
  color: var(--c-indigo);
}
.page-news .upd-param-def {
  font-size: 14px;
  line-height: 1.7;
  color: #3A4457;
}
.page-news .upd-param-media .media-frame { width: 100%; }
.page-news .upd-param-cap {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-indigo-soft);
  margin: 10px 0 0;
}

/* ---------- 反馈 ---------- */
.page-news .upd-voice {
  background: var(--c-paper);
  padding: clamp(40px, 7vw, 84px) var(--news-gutter);
}
.page-news .upd-voice-inner { max-width: var(--w-wide); margin: 0 auto; }
.page-news .upd-voice .upd-sec-head h2 { color: var(--c-text); }
.page-news .upd-voice .upd-sec-kicker { color: var(--c-orange-text); }
.page-news .upd-voice-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-news .upd-voice-card {
  margin: 0;
  background: #fff;
  border: var(--line);
  border-left: 4px solid var(--c-indigo-mid);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.page-news .upd-voice-card:nth-child(2n) { border-left-color: var(--c-cyan); }
.page-news .upd-voice-card:nth-child(3n) { border-left-color: var(--c-orange); }
.page-news .upd-voice-card p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text);
}
.page-news .upd-voice-role {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-indigo-soft);
}

/* ---------- 更新节奏 ---------- */
.page-news .upd-cadence {
  background: var(--c-ink);
  color: var(--c-text-dark);
  padding: clamp(40px, 7vw, 84px) var(--news-gutter);
}
.page-news .upd-cadence-inner {
  max-width: var(--w-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}
.page-news .upd-cadence h2 {
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.2;
  margin: 0 0 18px;
  color: #fff;
}
.page-news .upd-cadence-copy > p {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(233, 238, 247, 0.75);
  max-width: var(--w-narrow);
  margin: 0 0 24px;
}
.page-news .upd-cadence-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-news .upd-cadence-steps li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(233, 238, 247, 0.78);
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(233, 238, 247, 0.12);
}
.page-news .upd-cadence-steps .mono-num {
  background: transparent;
  border-color: rgba(0, 229, 199, 0.45);
  color: var(--c-cyan);
  font-size: 12px;
  padding: 3px 9px;
}

.page-news .upd-cadence-cta .panel {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(233, 238, 247, 0.18);
  color: var(--c-text-dark);
}
.page-news .upd-cadence-cta .panel-head {
  border-bottom: 1px solid rgba(233, 238, 247, 0.14);
}
.page-news .upd-cadence-cta .panel-body p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(233, 238, 247, 0.75);
  margin: 0 0 18px;
}
.page-news .upd-contact-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-news .upd-contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
}
.page-news .upd-contact-k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(233, 238, 247, 0.5);
  min-width: 44px;
}
.page-news .upd-contact-list .footer-link {
  color: var(--c-cyan);
  text-decoration: none;
}
.page-news .upd-contact-list .footer-link:hover { text-decoration: underline; }
.page-news .upd-contact-note {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(233, 238, 247, 0.6);
  border-top: 1px solid rgba(233, 238, 247, 0.12);
  padding-top: 14px;
  margin: 0 0 20px;
}

.page-news .upd-cadence-cta .btn-primary {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 10px 20px;
  border-radius: var(--radius);
  text-decoration: none;
  display: inline-block;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}
.page-news .upd-cadence-cta .btn-primary:hover {
  background: transparent;
  color: var(--c-orange);
}

/* ---------- 交互与动效 ---------- */
.page-news .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
}
.page-news .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .upd-summary-inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-news .upd-log-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
  .page-news .upd-entry--wide {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
    align-items: start;
  }
  .page-news .upd-entry--wide .upd-entry-media { margin-top: 0; }
  .page-news .upd-voice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
  .page-news .upd-param-row {
    grid-template-columns: 130px minmax(0, 1fr) auto;
    gap: 16px;
    align-items: baseline;
  }
  .page-news .upd-sec-head--split {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .page-news .upd-hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
  .page-news .upd-summary-inner {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
  .page-news .upd-param-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
  .page-news .upd-cadence-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
  .page-news .upd-log-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .upd-entry--wide {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }
  .page-news .upd-voice-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
  .page-news .upd-snap-head {
    grid-template-columns: 70px minmax(0, 1fr) auto;
    gap: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-news .upd-node-btn,
  .page-news .upd-chip,
  .page-news .upd-snap-toggle { transition: none; }
}