.page-news {
  --news-cut: polygon(0 12px, 12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  --news-rail-x: 5px;
  padding-top: clamp(76px, 11vw, 104px);
  color: var(--bone);
}

.page-news .section {
  padding-block: clamp(44px, 7vw, 84px);
}

.page-news .crumbs-row {
  margin-bottom: clamp(18px, 3.4vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: 0;
}

.page-news .news-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 46px);
  align-items: start;
}

.page-news .news-hero-lead h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 50px);
  line-height: 1.16;
  letter-spacing: 0.01em;
  margin: 14px 0 18px;
  max-width: 17ch;
}

.page-news .news-hero-lead .eyebrow {
  color: var(--gilt);
  letter-spacing: 0.16em;
}

.page-news .news-hero-sub {
  font-size: clamp(15px, 1.25vw, 17px);
  line-height: 1.85;
  color: var(--bone);
  opacity: 0.86;
  max-width: 46ch;
  margin-bottom: 26px;
}

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

.page-news [data-section-indicator] {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 7px 14px;
  border: 1px solid var(--rock-line);
  background: rgba(23, 26, 32, 0.7);
  clip-path: var(--cut-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-news [data-section-indicator]::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--gilt);
  box-shadow: 0 0 8px var(--gilt);
}

.page-news .news-hero-media .figure-frame,
.page-news .tl-media .figure-frame,
.page-news .columns-head .figure-frame,
.page-news .cols-banner .figure-frame {
  clip-path: var(--news-cut);
  border: 1px solid var(--rock-line);
  background: var(--rock-deep);
}

.page-news .news-hero-media .figure-frame img,
.page-news .tl-media .figure-frame img,
.page-news .columns-head .figure-frame img,
.page-news .cols-banner .figure-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 章节标题组 ---------- */
.page-news .section-head {
  max-width: 60ch;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-news .section-head h2,
.page-news .columns-head h2,
.page-news .archive-section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  margin: 10px 0 12px;
}

.page-news .section-lead {
  font-size: clamp(14px, 1.1vw, 16px);
  line-height: 1.8;
  color: var(--mist);
  max-width: 52ch;
}

/* ---------- 头条 ---------- */
.page-news .headline-block .eyebrow {
  color: var(--copper);
}

.page-news .headline-card {
  position: relative;
  padding: clamp(22px, 3.4vw, 40px) clamp(20px, 3.4vw, 44px);
  background: linear-gradient(135deg, rgba(23, 26, 32, 0.96), rgba(13, 14, 17, 0.96));
  border: 1px solid var(--rock-line);
  border-left: 4px solid var(--copper);
  clip-path: var(--news-cut);
}

.page-news .headline-time {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.page-news .headline-card h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 34px);
  line-height: 1.3;
  color: var(--bone);
  max-width: 24ch;
  margin-bottom: 18px;
}

.page-news .headline-card h2::after {
  content: "";
  display: block;
  width: 68px;
  height: 2px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--gilt), transparent);
}

.page-news .headline-body {
  font-size: clamp(14px, 1.1vw, 16px);
  line-height: 1.9;
  color: var(--bone);
  opacity: 0.86;
  max-width: 58ch;
  margin-bottom: 26px;
}

.page-news .headline-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  padding-top: 22px;
  border-top: 1px solid var(--rock-line);
}

.page-news .headline-facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  margin-bottom: 6px;
}

.page-news .headline-facts dd {
  font-size: clamp(18px, 2vw, 24px);
  color: var(--gilt-hi);
  letter-spacing: 0.02em;
}

/* ---------- 时间线 ---------- */
.page-news .timeline {
  position: relative;
  padding-left: 32px;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: var(--news-rail-x);
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--gilt) 0%, var(--rock-line) 55%, rgba(44, 49, 58, 0) 100%);
}

.page-news .tl-item {
  position: relative;
  margin-bottom: clamp(16px, 2.6vw, 24px);
}

.page-news .tl-item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 26px;
  width: 11px;
  height: 11px;
  background: var(--obsidian);
  border: 1px solid var(--rock-line);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-news .tl-item:hover::before,
.page-news .tl-item:focus-within::before {
  border-color: var(--gilt-hi);
  background: var(--gilt);
  box-shadow: 0 0 0 5px rgba(216, 162, 74, 0.14);
}

.page-news .tl-card {
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.6vw, 28px);
  background: rgba(23, 26, 32, 0.72);
  border: 1px solid var(--rock-line);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .tl-card:hover {
  border-color: rgba(216, 162, 74, 0.5);
  transform: translateY(-2px);
}

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

.page-news .tl-ver {
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--gilt-hi);
}

.page-news .tl-time {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  margin-left: auto;
}

.page-news .tl-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.45;
  color: var(--bone);
  margin-bottom: 10px;
}

.page-news .tl-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--bone);
  opacity: 0.82;
  max-width: 58ch;
}

.page-news .tl-note {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--rock-line);
  font-size: 13px;
  color: var(--mist);
}

.page-news .tl-note .mono {
  color: var(--patina);
  margin-right: 8px;
  letter-spacing: 0.06em;
}

.page-news .tl-media {
  position: relative;
  margin: clamp(20px, 3vw, 32px) 0;
}

/* ---------- 栏目分区 ---------- */
.page-news .columns-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-news .news-filter {
  position: relative;
}

.page-news .nf-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .nf-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-news .nf-tab {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--rock-line);
  background: rgba(23, 26, 32, 0.7);
  clip-path: var(--cut-sm);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  cursor: pointer;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-news .nf-tab:hover {
  color: var(--gilt-hi);
  border-color: rgba(216, 162, 74, 0.5);
}

.page-news #nf-all:checked ~ .nf-tabs .nf-tab[for="nf-all"],
.page-news #nf-notice:checked ~ .nf-tabs .nf-tab[for="nf-notice"],
.page-news #nf-version:checked ~ .nf-tabs .nf-tab[for="nf-version"],
.page-news #nf-note:checked ~ .nf-tabs .nf-tab[for="nf-note"] {
  background: linear-gradient(135deg, var(--gilt), var(--copper));
  border-color: transparent;
  color: var(--obsidian);
}

.page-news #nf-notice:checked ~ .nf-list .nf-item:not([data-kind="notice"]),
.page-news #nf-version:checked ~ .nf-list .nf-item:not([data-kind="version"]),
.page-news #nf-note:checked ~ .nf-list .nf-item:not([data-kind="note"]) {
  display: none;
}

.page-news .nf-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-news .nf-item {
  position: relative;
  padding: 20px 48px 20px 22px;
  background: var(--rock-deep);
  border: 1px solid var(--rock-line);
  clip-path: var(--news-cut);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-news .nf-item::after {
  content: "→";
  position: absolute;
  right: 18px;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gilt);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-news .nf-item:hover {
  border-color: rgba(216, 162, 74, 0.45);
  background: rgba(23, 26, 32, 0.92);
}

.page-news .nf-item:hover::after {
  opacity: 1;
  transform: translateX(0);
}

.page-news .nf-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-news .nf-time {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .nf-item h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.5;
  color: var(--bone);
  margin-bottom: 8px;
}

.page-news .nf-body {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 44ch;
}

.page-news .nf-more {
  margin-top: 12px;
}

.page-news .nf-more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--patina);
}

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

.page-news .nf-more summary::before {
  content: "+ ";
}

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

.page-news .nf-more ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.85;
}

.page-news .nf-more li {
  margin-bottom: 4px;
}

.page-news .cols-banner {
  margin-top: clamp(26px, 4vw, 44px);
}

/* ---------- 阅读提示 ---------- */
.page-news .key-bar {
  padding: clamp(22px, 3.2vw, 34px);
  border: 1px solid var(--rock-line);
  background: linear-gradient(120deg, rgba(23, 26, 32, 0.92), rgba(13, 14, 17, 0.92));
  clip-path: var(--cut-md);
}

.page-news .key-title {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gilt);
  margin-bottom: 14px;
}

.page-news .key-line {
  font-size: clamp(15px, 1.2vw, 16px);
  line-height: 1.9;
  color: var(--bone);
  opacity: 0.86;
  max-width: 62ch;
}

.page-news .key-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--rock-line);
  font-size: 13px;
  color: var(--mist);
}

.page-news .key-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-news .key-link {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .key-link a {
  color: var(--gilt-hi);
  border-bottom: 1px solid rgba(216, 162, 74, 0.4);
  padding-bottom: 1px;
}

.page-news .key-link a:hover {
  color: var(--bone);
  border-bottom-color: var(--bone);
}

/* ---------- 往期回顾 ---------- */
.page-news .archive-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-news .archive-list {
  margin-top: clamp(18px, 3vw, 28px);
  border-top: 1px solid var(--rock-line);
}

.page-news .archive-list li {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: 4px 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rock-line);
}

.page-news .arch-ver {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gilt-hi);
}

.page-news .arch-txt {
  font-size: 14px;
  line-height: 1.7;
  color: var(--bone);
  opacity: 0.84;
}

.page-news .arch-when {
  grid-column: 2;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .archive-cta {
  padding: clamp(22px, 3.2vw, 34px);
  background: linear-gradient(150deg, rgba(23, 26, 32, 0.96), rgba(13, 14, 17, 0.96));
  border: 1px solid var(--rock-line);
}

.page-news .archive-cta .eyebrow {
  color: var(--patina);
  letter-spacing: 0.14em;
}

.page-news .archive-cta h2 {
  font-size: clamp(19px, 2.2vw, 24px);
}

.page-news .archive-cta-body {
  font-size: 14px;
  line-height: 1.9;
  color: var(--bone);
  opacity: 0.82;
  margin-bottom: 18px;
}

.page-news .archive-cta-list {
  margin-bottom: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--rock-line);
  font-size: 13px;
  line-height: 1.9;
  color: var(--mist);
}

.page-news .archive-cta-list li {
  position: relative;
  padding-left: 16px;
}

.page-news .archive-cta-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 1px;
  background: var(--copper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .headline-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-news .archive-list li {
    grid-template-columns: 128px minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
  }

  .page-news .arch-when {
    grid-column: 3;
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 4.5vw, 60px);
    align-items: end;
  }

  .page-news .columns-head {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

  .page-news .archive-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-news .tl-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .page-news .tl-desc {
    max-width: 68ch;
  }
}

@media (max-width: 480px) {
  .page-news .timeline {
    padding-left: 26px;
  }

  .page-news .tl-item::before {
    left: -26px;
  }

  .page-news .nf-item {
    padding-right: 22px;
  }

  .page-news .nf-item::after {
    display: none;
  }

  .page-news .key-legend {
    flex-direction: column;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .tl-card,
  .page-news .nf-item,
  .page-news .nf-item::after,
  .page-news .tl-item::before {
    transition: none;
  }

  .page-news .tl-card:hover {
    transform: none;
  }
}