.page-news {
  --snow-soft: rgba(245, 243, 238, 0.82);
  --line-soft: rgba(245, 243, 238, 0.26);
  --slot-bg: rgba(18, 25, 30, 0.46);
  background: var(--snow);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  background: var(--deep);
  color: var(--snow);
  border-bottom: var(--line) solid var(--ink);
  padding: 26px 0 42px;
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 240px;
  height: 240px;
  background: repeating-linear-gradient(135deg, var(--saffron) 0 14px, transparent 14px 30px);
  opacity: 0.3;
  transform: rotate(8deg);
  pointer-events: none;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(48%, 520px);
  height: 6px;
  background: linear-gradient(90deg, var(--gold), var(--saffron));
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-news .news-hero .crumbs {
  color: var(--fog);
  font-size: 0.8rem;
}

.page-news .news-hero .crumbs__item {
  color: var(--fog);
  text-decoration: none;
}

.page-news .news-hero a.crumbs__item:hover,
.page-news .news-hero a.crumbs__item:focus-visible {
  color: var(--gold-hi);
}

.page-news .news-hero .kicker {
  color: var(--gold);
}

.page-news .news-hero__title {
  margin: 0;
  font-size: clamp(3.2rem, 9vw, 8rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 62ch;
  color: var(--snow-soft);
  font-size: 1rem;
}

.page-news .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 8px 0 0;
}

.page-news .hero-stats .stat {
  background: var(--slot-bg);
  border: var(--line) solid var(--line-soft);
  padding: 10px 12px;
}

.page-news .hero-stats dt {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--fog);
}

.page-news .hero-stats dd {
  margin: 5px 0 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--gold-hi);
}

/* ---------- 主体骨架 ---------- */
.page-news .news-body {
  display: grid;
  gap: 36px;
  padding: 36px 0 72px;
}

.page-news .news-flow {
  display: flex;
  flex-direction: column;
  gap: 56px;
  min-width: 0;
}

.page-news .filter-scope {
  display: flex;
  flex-direction: column;
  gap: 56px;
  min-width: 0;
}

.page-news .section {
  min-width: 0;
}

.page-news .section .lede {
  max-width: 68ch;
}

.page-news .media {
  margin: 22px 0 0;
}

.page-news .action-row {
  margin-top: 26px;
}

/* ---------- 左侧栏目轨道 ---------- */
.page-news .notes-rail {
  min-width: 0;
}

.page-news .notes-rail__title {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--fog);
}

.page-news .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .rail-list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: var(--line) solid var(--ink);
  background: var(--snow);
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.page-news .rail-list a .mono {
  font-size: 0.74rem;
  color: var(--saffron);
}

.page-news .rail-list a:hover,
.page-news .rail-list a:focus-visible {
  background: var(--deep);
  color: var(--gold-hi);
}

.page-news .rail-list a:hover .mono,
.page-news .rail-list a:focus-visible .mono {
  color: var(--gold);
}

.page-news .notes-rail__note {
  margin: 18px 0;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 四类记录 ---------- */
.page-news .topic-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-news .topic-card {
  background: var(--snow);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 16px 16px 18px;
}

.page-news .topic-card__head {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-news .topic-card__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: var(--line) solid var(--ink);
  flex: none;
}

.page-news .topic-card__dot--saffron { background: var(--saffron); }
.page-news .topic-card__dot--gold { background: var(--gold); }
.page-news .topic-card__dot--blue { background: var(--blue); }
.page-news .topic-card__dot--jade { background: var(--jade); }

.page-news .topic-card p:last-child {
  margin: 10px 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 筛选带 ---------- */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  padding: 14px;
  background: var(--deep);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-sm);
}

.page-news .filter-btn {
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 7px 14px;
  border: var(--line) solid var(--snow);
  background: transparent;
  color: var(--snow);
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-news .filter-btn:hover,
.page-news .filter-btn:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-news .filter-count {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--gold-hi);
}

/* ---------- 条目列表 ---------- */
.page-news .entry-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-news .entry {
  background: var(--snow);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-sm);
}

.page-news .entry__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 14px;
  align-items: start;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-news .entry__head::-webkit-details-marker {
  display: none;
}

.page-news .entry__no {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  background: var(--deep);
  color: var(--gold-hi);
  padding: 5px 8px;
  white-space: nowrap;
}

.page-news .entry__main {
  display: block;
  min-width: 0;
}

.page-news .entry__title {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.005em;
}

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 7px;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.page-news .entry__toggle {
  grid-column: 2;
  justify-self: start;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--blue);
  border-bottom: 1px dashed var(--blue);
}

.page-news .entry__toggle::after {
  content: "展开详情";
}

.page-news .entry[open] .entry__toggle::after {
  content: "收起详情";
}

.page-news .entry__body {
  padding: 0 16px 18px;
  border-top: var(--line) solid var(--sand);
}

.page-news .entry[open] .entry__body {
  animation: newsUnfold 260ms ease-out;
}

@keyframes newsUnfold {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.page-news .entry__text {
  margin: 14px 0 0;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-news .entry__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--ink);
}

.page-news .entry__list li {
  position: relative;
  padding-left: 16px;
}

.page-news .entry__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 2px;
  background: var(--gold);
}

.page-news .entry__foot {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.02em;
  color: var(--fog);
}

/* ---------- 榜单变动说明 ---------- */
.page-news .change-points {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.page-news .change-point {
  border-left: 3px solid var(--gold);
  padding: 2px 0 2px 14px;
}

.page-news .change-point h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
}

.page-news .change-point p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 版本归档 ---------- */
.page-news .index-list {
  display: grid;
  margin-top: 26px;
  border-top: var(--line) solid var(--ink);
}

.page-news .index-row {
  display: grid;
  gap: 6px;
  align-items: baseline;
  padding: 16px 4px;
  border-bottom: var(--line) solid var(--sand);
}

.page-news .index-row__no {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--saffron);
}

.page-news .index-row__title {
  font-weight: 700;
  line-height: 1.6;
}

.page-news .index-row__meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--fog);
}

/* ---------- 专题系列 ---------- */
.page-news .series-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--sand);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 18px;
}

.page-news .series-card .tag {
  align-self: flex-start;
}

.page-news .series-card__no {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
}

.page-news .series-card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
}

.page-news .series-card p:last-child {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 回溯与收藏 ---------- */
.page-news .recall-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-news .recall-step {
  background: var(--snow);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 18px;
}

.page-news .recall-step__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--saffron);
}

.page-news .recall-step h3 {
  margin: 8px 0 0;
  font-size: 1rem;
  font-weight: 700;
}

.page-news .recall-step p:last-child {
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .topic-grid,
  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 768px) {
  .page-news .entry__head {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
  }

  .page-news .entry__toggle {
    grid-column: 3;
    grid-row: 1;
    align-self: center;
    justify-self: end;
  }

  .page-news .index-row {
    grid-template-columns: 96px minmax(0, 1fr) 150px;
    gap: 18px;
  }

  .page-news .index-row__meta {
    text-align: right;
  }

  .page-news .change-points,
  .page-news .recall-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 1024px) {
  .page-news .news-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 48px;
  }

  .page-news .notes-rail {
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-news .rail-list {
    display: block;
  }

  .page-news .rail-list li + li {
    margin-top: 2px;
  }

  .page-news .rail-list a {
    border-width: 0 0 var(--line) 0;
    border-color: var(--sand);
    padding: 9px 4px 9px 10px;
    background: transparent;
    position: relative;
  }

  .page-news .rail-list a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    bottom: 12px;
    width: 3px;
    background: transparent;
  }

  .page-news .rail-list a:hover,
  .page-news .rail-list a:focus-visible {
    background: transparent;
    color: var(--saffron);
  }

  .page-news .rail-list a:hover::before,
  .page-news .rail-list a:focus-visible::before {
    background: var(--gold);
  }

  .page-news .rail-list a:hover .mono,
  .page-news .rail-list a:focus-visible .mono {
    color: var(--gold);
  }
}

@media (min-width: 1200px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry[open] .entry__body {
    animation: none;
  }

  .page-news .rail-list a,
  .page-news .filter-btn {
    transition: none;
  }
}