.page-news {
  --pn-chain: var(--cyan);
  --pn-version: var(--amber);
  --pn-help: var(--cyan-deep);
  --pn-monthly: var(--amber-soft);
  display: block;
}

/* 面包屑 */
.page-news .breadcrumb {
  padding: 24px 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-news .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-news .breadcrumb a:hover {
  color: var(--cyan);
}

.page-news .breadcrumb span[aria-hidden="true"] {
  color: var(--line);
}

/* 首屏 */
.page-news .pn-hero {
  padding: 22px 0 4px;
  position: relative;
}

.page-news .pn-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 58%;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), rgba(53, 242, 224, 0) 80%);
  opacity: 0.6;
}

.page-news .pn-hero .eyebrow {
  margin: 0 0 16px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.page-news .pn-hero .eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--amber);
}

.page-news .pn-hero .display {
  margin: 0 0 20px;
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  font-weight: 300;
  color: var(--white);
  max-width: 18ch;
}

.page-news .pn-hero .display strong {
  font-weight: 700;
  color: var(--cyan);
}

.page-news .pn-hero .lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-news .pn-hero-media {
  padding: 34px 0 0;
}

.page-news .pn-hero-media .media {
  aspect-ratio: 5 / 2;
  border-radius: var(--radius);
  overflow: hidden;
}

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

/* 章节头 */
.page-news .section {
  padding: clamp(46px, 7vw, 84px) 0 0;
}

.page-news .pn-section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0 16px;
  margin-bottom: 24px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-news .pn-section-head .num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-news .pn-section-head .section-title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--white);
  font-weight: 500;
}

.page-news .pn-section-head__note {
  grid-column: 1 / -1;
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .pn-section-head--stacked {
  grid-template-columns: auto minmax(0, 1fr);
  margin-bottom: 14px;
}

/* 筛选标签 */
.page-news .pn-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

.page-news .pn-filters .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 8px 14px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .pn-filters .tag:hover {
  color: var(--white);
  border-color: var(--cyan);
}

.page-news .pn-filters .tag[aria-pressed="true"] {
  background: var(--cyan-deep);
  border-color: var(--cyan-deep);
  color: var(--ink-900);
}

/* 条目列表 */
.page-news .pn-entries {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
}

.page-news .entry-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 14px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-news .entry-row:hover {
  background: linear-gradient(90deg, rgba(53, 242, 224, 0.07), rgba(53, 242, 224, 0) 68%);
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-news .entry-row.is-hidden {
  display: none;
}

.page-news .pn-entry__issue {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber-soft);
  padding-top: 3px;
  white-space: nowrap;
}

.page-news .pn-cat {
  grid-column: 2;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 4px 9px;
  border: 1px solid currentColor;
  border-radius: 4px;
  white-space: nowrap;
}

.page-news .pn-cat--channel {
  color: var(--pn-chain);
}

.page-news .pn-cat--version {
  color: var(--pn-version);
}

.page-news .pn-cat--help {
  color: var(--pn-help);
}

.page-news .pn-cat--monthly {
  color: var(--pn-monthly);
}

.page-news .pn-entry__body {
  grid-column: 1 / -1;
}

.page-news .pn-entry__body h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.45;
  font-weight: 600;
  color: var(--white);
}

.page-news .pn-entry__summary {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--dur) var(--ease);
}

.page-news .entry-row:hover .pn-entry__summary {
  -webkit-line-clamp: 4;
  color: #b9c6cf;
}

.page-news .pn-entry__media {
  margin-top: 16px;
  max-width: 420px;
  aspect-ratio: 3 / 2;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-news .pn-entry__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 栏目标签卡 */
.page-news .pn-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .pn-cat-card {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .pn-cat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: currentColor;
  opacity: 0.85;
}

.page-news .pn-cat-card:hover {
  transform: translateY(-4px);
  border-color: currentColor;
}

.page-news .pn-cat-card--channel {
  color: var(--pn-chain);
}

.page-news .pn-cat-card--version {
  color: var(--pn-version);
}

.page-news .pn-cat-card--help {
  color: var(--pn-help);
}

.page-news .pn-cat-card--monthly {
  color: var(--pn-monthly);
}

.page-news .pn-cat-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  letter-spacing: 0.06em;
  color: var(--white);
  font-weight: 600;
}

.page-news .pn-cat-card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .pn-cat-card__meta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: currentColor;
  opacity: 0.9;
}

/* 归档索引 */
.page-news .pn-archive-grid {
  display: grid;
  gap: 34px;
}

.page-news .pn-archive-aside__note {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .pn-archive-media {
  aspect-ratio: 10 / 7;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

.page-news .pn-archive {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .pn-archive + .pn-archive {
  border-top: 0;
}

.page-news .pn-archive summary {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

.page-news .pn-archive summary::-webkit-details-marker {
  display: none;
}

.page-news .pn-archive summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--amber);
  transition: transform var(--dur) var(--ease);
}

.page-news .pn-archive[open] summary::after {
  content: "−";
}

.page-news .pn-archive summary:hover {
  color: var(--cyan);
}

.page-news .pn-archive__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--amber-soft);
}

.page-news .pn-archive__label {
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .pn-archive[open] .pn-archive__label {
  color: var(--white);
}

.page-news .pn-archive__body {
  padding: 0 0 22px 20px;
  border-left: 1px solid var(--line);
  margin-left: 2px;
}

.page-news .pn-archive__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 46ch;
}

/* 专题系列 */
.page-news .pn-series-media {
  aspect-ratio: 12 / 5;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 26px;
}

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

.page-news .pn-nodes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .pn-node a {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  background: linear-gradient(160deg, rgba(14, 19, 26, 0.9), rgba(7, 9, 13, 0.6));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-news .pn-node a:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 0 0 1px rgba(53, 242, 224, 0.22), 0 18px 40px -26px rgba(53, 242, 224, 0.8);
}

.page-news .pn-node__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-news .pn-node h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--white);
}

.page-news .pn-node p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  flex: 1;
}

.page-news .pn-node__go {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  padding-top: 4px;
  border-top: 1px solid var(--line);
}

/* 回看方式 */
.page-news .pn-howto {
  display: grid;
  gap: 18px;
}

.page-news .pn-howto__item {
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-news .pn-howto__item h3 {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
}

.page-news .pn-howto__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 48ch;
}

/* 平板及以上 */
@media (min-width: 640px) {
  .page-news .pn-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-news .pn-howto {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-news .pn-nodes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

/* 桌面网格 */
@media (min-width: 820px) {
  .page-news .entry-row {
    grid-template-columns: 96px 152px minmax(0, 1fr);
    gap: 0 26px;
    align-items: start;
    padding: 24px 0;
  }

  .page-news .pn-entry__issue {
    grid-column: 1;
    grid-row: 1;
    padding-top: 5px;
  }

  .page-news .pn-cat {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
  }

  .page-news .pn-entry__body {
    grid-column: 3;
    grid-row: 1;
  }

  .page-news .pn-archive-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .pn-hero {
    padding-top: 30px;
  }

  .page-news .pn-hero-media {
    padding-top: 44px;
  }
}

@media (min-width: 1080px) {
  .page-news .pn-nodes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-news .pn-node {
    padding-right: 12px;
  }

  .page-news .pn-node + .pn-node a {
    border-left: 0;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .page-news .entry-row,
  .page-news .pn-cat-card,
  .page-news .pn-node a,
  .page-news .pn-entry__summary {
    transition: none;
  }
}