.page-news {
  --news-line: rgba(14, 23, 38, 0.16);
  --news-dark-line: rgba(169, 199, 255, 0.28);
  background: var(--paper);
  color: var(--ink);
}

.page-news .breadcrumb {
  padding-block: 1.1rem 0.4rem;
}

/* 首屏 */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--news-line);
  border-bottom: 1px solid var(--news-line);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(31, 79, 216, 0.18), transparent 62%),
    var(--paper);
}

.page-news .hero-grid {
  display: grid;
  gap: 2rem;
  padding-block: clamp(2rem, 5vw, 4rem) clamp(2.4rem, 6vw, 4.5rem);
  align-items: end;
}

.page-news .hero-title {
  margin: 0.8rem 0 0;
  font-size: clamp(2rem, 6.4vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: 0.05em;
  font-weight: 800;
}

.page-news .hero-lede {
  margin: 1.2rem 0 0;
  max-width: 40rem;
  color: var(--ink-72);
  font-size: 1rem;
  line-height: 1.85;
}

.page-news .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  margin: 1.6rem 0 0;
  padding: 1.1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--news-line);
}

.page-news .hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
}

.page-news .stat-num {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cobalt);
}

.page-news .stat-label {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--ink-52);
}

.page-news .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

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

.page-news .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ink-24);
  background: var(--deep);
  object-fit: cover;
}

/* 系列筛选条 */
.page-news .filter-bar {
  display: grid;
  gap: 0.8rem;
  padding-block: 1rem;
  border-bottom: 1px solid var(--news-line);
}

.page-news .filter-hint {
  margin: 0;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--ink-52);
}

.page-news .filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .filter-link {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--ink-24);
  background: var(--paper-white);
  color: var(--ink);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-news .filter-link:hover,
.page-news .filter-link:focus-visible {
  border-color: var(--cobalt);
  color: var(--cobalt);
}

.page-news .filter-link[aria-current="true"] {
  background: var(--cobalt);
  border-color: var(--cobalt);
  color: var(--paper-white);
}

/* 区块通用 */
.page-news .section {
  padding-block: clamp(2.6rem, 6vw, 5rem);
}

.page-news .sec-head {
  max-width: 44rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.4rem);
}

.page-news .sec-head h2 {
  margin: 0.6rem 0 0.8rem;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.page-news .sec-lede {
  margin: 0;
  color: var(--ink-72);
  font-size: 0.98rem;
  line-height: 1.85;
}

/* 目录地图 */
.page-news .map {
  display: grid;
  gap: 1px;
  border: 1px solid var(--news-line);
  background: var(--news-line);
}

.page-news .map-cluster {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.3rem 1.2rem;
  background: var(--paper-white);
}

.page-news .cluster-num {
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--cobalt);
}

.page-news .cluster-title {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: 0.07em;
}

.page-news .cluster-desc {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-72);
}

.page-news .cluster-list {
  margin: 0.2rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink-08);
}

.page-news .cluster-list li {
  border-bottom: 1px solid var(--ink-08);
}

.page-news .cluster-list li:last-child {
  border-bottom: 0;
}

.page-news .cluster-link {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.55rem 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-news .cluster-link::after {
  content: "→";
  color: var(--cobalt);
  font-family: var(--font-mono);
}

.page-news .cluster-link:hover,
.page-news .cluster-link:focus-visible {
  color: var(--cobalt);
}

/* 系列章节 */
.page-news .series-head {
  display: grid;
  gap: 1.5rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.2rem);
}

.page-news .series-head h2 {
  margin: 0.7rem 0 0.8rem;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.25;
  letter-spacing: 0.05em;
}

.page-news .series-lede {
  margin: 0;
  max-width: 42rem;
  color: var(--ink-72);
  font-size: 0.96rem;
  line-height: 1.85;
}

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

.page-news .series-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ink-24);
  background: var(--deep);
  object-fit: cover;
}

.page-news .entry-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink-24);
}

.page-news .entry {
  display: grid;
  gap: 0.55rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .entry-ver {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--cobalt);
}

.page-news .entry-title {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.5;
  letter-spacing: 0.03em;
}

.page-news .entry-desc {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink-72);
}

.page-news .entry .tag {
  justify-self: start;
}

.page-news .series-more {
  margin: 1.6rem 0 0;
}

/* 更新日志 */
.page-news .log-section {
  background: var(--deep);
  color: var(--paper-white);
  border-top: 1px solid var(--ink-24);
}

.page-news .log-section .sec-lede {
  color: var(--paper-72);
}

.page-news .log-grid {
  display: grid;
  gap: 1.8rem;
}

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

.page-news .log-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--news-dark-line);
  background: rgba(255, 249, 236, 0.06);
  object-fit: cover;
}

.page-news .timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 1.6rem;
  list-style: none;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 0.28rem;
  top: 0.45rem;
  bottom: 0.45rem;
  width: 1px;
  background: var(--news-dark-line);
}

.page-news .tick {
  position: relative;
  padding-bottom: 1.6rem;
}

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

.page-news .tick::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: 0.45rem;
  width: 0.58rem;
  height: 0.58rem;
  border: 1px solid var(--cyan);
  background: var(--deep);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-news .tick:hover::before,
.page-news .tick:focus-within::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 216, 255, 0.18);
}

.page-news .tick-ver {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-news .tick-title {
  margin: 0.4rem 0 0;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--paper-white);
}

.page-news .tick-note {
  margin: 0.45rem 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--paper-72);
  transition: color 0.3s var(--ease);
}

.page-news .tick:hover .tick-note,
.page-news .tick:focus-within .tick-note {
  color: var(--paper-white);
}

/* 推荐阅读路径 */
.page-news .path {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .path-step {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.2rem;
  background: var(--paper-white);
  border: 1px solid var(--ink-16);
  border-top: 3px solid var(--cobalt);
}

.page-news .path-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  color: var(--cobalt);
}

.page-news .path-title {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.page-news .path-desc {
  flex: 1;
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-72);
}

.page-news .path-link {
  align-self: flex-start;
  padding-bottom: 0.1rem;
  font-size: 0.82rem;
  color: var(--cobalt);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-news .path-link:hover,
.page-news .path-link:focus-visible {
  color: var(--deep);
}

/* 结尾行动区 */
.page-news .cta-band {
  background: linear-gradient(120deg, var(--cobalt), var(--deep));
  color: var(--paper-white);
  border-top: 1px solid var(--ink-24);
}

.page-news .cta-inner {
  display: grid;
  gap: 1.2rem;
  align-items: center;
  padding-block: clamp(2.2rem, 5vw, 3.5rem);
}

.page-news .cta-title {
  margin: 0;
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  line-height: 1.3;
  letter-spacing: 0.06em;
}

.page-news .cta-text {
  margin: 0.7rem 0 0;
  max-width: 36rem;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--paper-72);
}

.page-news .cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
}

.page-news .cta-link {
  align-self: center;
  padding-bottom: 0.15rem;
  font-size: 0.88rem;
  color: var(--paper-white);
  text-decoration: none;
  border-bottom: 1px solid var(--mist);
}

.page-news .cta-link:hover,
.page-news .cta-link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* 平板 */
@media (min-width: 640px) {
  .page-news .filter-bar {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 1.4rem;
  }

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

  .page-news .entry {
    grid-template-columns: 5.2rem minmax(0, 1fr) auto;
    align-items: start;
    gap: 1.2rem;
  }

  .page-news .entry-ver {
    padding-top: 0.25rem;
  }

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

/* 桌面 */
@media (min-width: 960px) {
  .page-news .hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3rem;
  }

  .page-news .series-head {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 2.5rem;
  }

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

  .page-news .log-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 2.8rem;
  }

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

  .page-news .cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
  }
}