.page-news {
  --notes-rail-w: 250px;
  --notes-border: 1px solid var(--grid);
  background: var(--ink-900);
  color: var(--paper);
}

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

.page-news .section {
  padding-block: 2.75rem;
}

.page-news h2,
.page-news h3 {
  font-family: var(--font-display);
  color: var(--paper-hi);
  margin: 0;
}

.page-news h2 {
  font-size: clamp(1.65rem, 3.4vw, 2.35rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: .01em;
  margin-bottom: .65rem;
}

.page-news h3 {
  font-size: 1.16rem;
  line-height: 1.25;
  font-weight: 700;
}

.page-news .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .35rem 1rem;
  align-items: start;
  margin-bottom: 1.6rem;
}

.page-news .section-index {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--signal);
  padding-top: .5rem;
}

.page-news .section-note {
  margin: 0;
  color: var(--slate);
  font-size: .98rem;
  line-height: 1.75;
  max-width: 62ch;
}

/* 首屏 */
.page-news .notes-hero {
  padding-block: 1.75rem 2.25rem;
  border-bottom: var(--notes-border);
}

.page-news .notes-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: end;
}

.page-news .notes-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--slate);
  padding: .3rem .6rem;
  border: var(--notes-border);
}

.page-news .notes-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 6.4vw, 4.3rem);
  line-height: 1.03;
  font-weight: 800;
  letter-spacing: .01em;
  margin: 0 0 1.1rem;
  color: var(--paper-hi);
}

.page-news .notes-lead {
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--paper);
  max-width: 58ch;
}

.page-news .notes-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.6rem;
}

.page-news .notes-hero-figure {
  border-left: 2px solid var(--signal);
  padding-left: .9rem;
}

.page-news .media-caption {
  margin: .55rem 0 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--slate);
}

/* 分类索引 */
.page-news .notes-catalog {
  border-bottom: var(--notes-border);
}

.page-news .catalog-figure {
  margin-bottom: 1.5rem;
}

.page-news .cat-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: var(--notes-border);
}

.page-news .cat-card {
  background: var(--ink-800);
  padding: 1.15rem 1.2rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
  transition: background-color var(--dur) ease, box-shadow var(--dur) ease;
}

.page-news .cat-card:hover {
  background: var(--ink-900);
  box-shadow: inset 0 0 0 1px var(--terminal);
}

.page-news .cat-prefix {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--terminal);
}

.page-news .cat-name {
  font-size: 1.1rem;
}

.page-news .cat-desc {
  margin: 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--slate);
  flex: 1 1 auto;
}

.page-news .cat-link {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--grid);
  padding-bottom: .15rem;
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-news .cat-link:hover {
  color: var(--signal);
  border-color: var(--signal);
}

/* 条目流与侧栏 */
.page-news .notes-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.page-news .notes-rail {
  border-top: 2px solid var(--grid);
  padding-top: 1rem;
}

.page-news .rail-label {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--signal);
}

.page-news .rail-list {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-news .rail-list a {
  display: block;
  padding: .45rem .1rem;
  font-size: .92rem;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 74, 94, .6);
  transition: color var(--dur) ease, padding-left var(--dur) ease;
}

.page-news .rail-list a:hover {
  color: var(--terminal);
  padding-left: .35rem;
}

.page-news .rail-photo .media-frame {
  border: var(--notes-border);
}

/* 时间线条目 */
.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-news .titem {
  position: relative;
  background: var(--ink-800);
  border: var(--notes-border);
  border-left: 2px solid var(--grid);
  padding: 1.15rem 1.15rem 1.2rem 1.35rem;
  transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
}

.page-news .titem:hover,
.page-news .titem:focus-within {
  border-color: var(--terminal);
  box-shadow: inset 0 0 0 1px rgba(61, 220, 151, .25);
}

.page-news .titem-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin-bottom: .7rem;
}

.page-news .titem-time {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--paper-2);
}

.page-news .tag {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .05em;
}

.page-news .titem-title {
  font-size: 1.18rem;
  margin-bottom: .55rem;
}

.page-news .titem-sum {
  margin: 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-news .titem-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem .7rem;
  margin-top: .9rem;
}

.page-news .path-code {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--ink-900);
  background: var(--paper-2);
  padding: .22rem .5rem;
}

.page-news .copy-btn {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--slate);
  background: transparent;
  border: 1px solid var(--grid);
  padding: .28rem .55rem;
  cursor: pointer;
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-news .copy-btn:hover {
  color: var(--signal);
  border-color: var(--signal);
}

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

.page-news .copy-status {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .04em;
  color: var(--terminal);
  min-height: 1em;
}

.page-news .titem-more {
  margin-top: 1rem;
  border-top: 1px dashed var(--grid);
  padding-top: .75rem;
}

.page-news .titem-more summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--slate);
  transition: color var(--dur) ease;
}

.page-news .titem-more summary::-webkit-details-marker {
  display: none;
}

.page-news .titem-more summary::before {
  content: "+ ";
  color: var(--signal);
}

.page-news .titem-more[open] summary::before {
  content: "– ";
}

.page-news .titem-more summary:hover {
  color: var(--terminal);
}

.page-news .titem-more p {
  margin: .7rem 0 0;
  font-size: .93rem;
  line-height: 1.78;
  color: var(--paper-2);
  max-width: 66ch;
}

/* 专题 */
.page-news .notes-topic {
  border-top: var(--notes-border);
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: var(--notes-border);
}

.page-news .topic-line {
  background: var(--ink-800);
  padding: 1.2rem 1.25rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.page-news .topic-no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--signal);
}

.page-news .topic-now {
  margin: 0;
  font-size: .93rem;
  line-height: 1.72;
  color: var(--paper);
  flex: 1 1 auto;
}

.page-news .topic-ref {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--terminal);
}

.page-news .topic-figure {
  margin-top: 1.5rem;
}

.page-news .topic-tail {
  margin: 1.4rem 0 0;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--slate);
  border-left: 2px solid var(--signal);
  padding-left: .9rem;
  max-width: 70ch;
}

/* 更新节奏：纸面反相带 */
.page-news .notes-cadence {
  background: var(--paper);
  color: var(--ink-900);
  border-top: 3px solid var(--signal);
  padding-block: 2.75rem 3.25rem;
}

.page-news .notes-cadence .section-index {
  color: var(--warn);
}

.page-news .notes-cadence h2,
.page-news .notes-cadence h3 {
  color: var(--ink-900);
}

.page-news .notes-cadence .section-note {
  color: #3d4f5c;
}

.page-news .cadence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--paper-2);
  border: 1px solid var(--paper-2);
  margin-bottom: 2rem;
}

.page-news .cadence-stat {
  background: var(--paper-hi);
  padding: 1rem 1.05rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.page-news .cadence-num {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  font-weight: 800;
  line-height: 1;
  color: var(--warn);
  letter-spacing: .01em;
}

.page-news .cadence-label {
  font-size: .84rem;
  line-height: 1.5;
  color: #3d4f5c;
}

.page-news .cadence-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-news .cadence-text h3 {
  font-size: 1.25rem;
  margin-bottom: .8rem;
}

.page-news .cadence-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: .7rem;
  counter-reset: cadence;
}

.page-news .cadence-list li {
  position: relative;
  padding-left: 1.6rem;
  font-size: .95rem;
  line-height: 1.72;
  color: #24333f;
}

.page-news .cadence-list li::before {
  counter-increment: cadence;
  content: counter(cadence, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .1rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--warn);
}

.page-news .cadence-list strong {
  color: var(--ink-900);
}

.page-news .cadence-note {
  margin: 0 0 1.3rem;
  font-size: .92rem;
  line-height: 1.75;
  color: #3d4f5c;
  border-top: 1px dashed var(--paper-2);
  padding-top: .9rem;
}

.page-news .cadence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-news .cadence-aside {
  background: var(--paper-2);
  padding: 1.2rem 1.25rem 1.3rem;
  border-left: 2px solid var(--ink-900);
}

.page-news .cadence-aside-title {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .07em;
  color: var(--ink-900);
}

.page-news .cadence-links {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-news .cadence-links a {
  display: block;
  padding: .5rem 0;
  font-size: .93rem;
  color: #24333f;
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 27, 43, .18);
  transition: color var(--dur) ease, border-color var(--dur) ease;
}

.page-news .cadence-links a:hover {
  color: var(--warn);
  border-color: var(--warn);
}

.page-news .cadence-meta {
  margin: 0;
  font-size: .84rem;
  line-height: 1.7;
  color: #3d4f5c;
}

@media (min-width: 720px) {
  .page-news .section {
    padding-block: 3.5rem;
  }

  .page-news .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .cadence-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .cadence-body {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 2.5rem;
  }
}

@media (min-width: 980px) {
  .page-news .notes-hero {
    padding-block: 2.5rem 3rem;
  }

  .page-news .notes-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
    gap: 3.25rem;
  }

  .page-news .cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .notes-cols {
    grid-template-columns: var(--notes-rail-w) minmax(0, 1fr);
    gap: 3rem;
  }

  .page-news .notes-rail {
    position: sticky;
    top: 1.5rem;
  }

  .page-news .timeline {
    gap: 1.75rem;
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}