.page-news {
  --news-gap: clamp(1.1rem, 3vw, 2.2rem);
  --news-rule-strong: 2px solid var(--ink);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-news .crumbs {
  margin: 1.1rem 0 1.5rem;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

/* ---------- 首屏 ---------- */
.page-news .press-head {
  display: grid;
  gap: 1.5rem;
  padding-bottom: clamp(1.4rem, 4vw, 2.4rem);
  border-bottom: var(--news-rule-strong);
}

.page-news .press-head__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-news .press-head__dot {
  width: 9px;
  height: 9px;
  background: var(--accent);
  flex: none;
}

.page-news h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.9rem, 6.4vw, 3.4rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-news .press-head__intro {
  margin: 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.8;
}

.page-news .press-head__figure {
  margin: 0;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 6px;
}

.page-news .press-head__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 章节统一间距 ---------- */
.page-news .section + .section {
  margin-top: clamp(2.6rem, 7vw, 4.5rem);
}

.page-news .section {
  scroll-margin-top: calc(var(--bar-h) + 1rem);
}

/* ---------- 条目筛选 ---------- */
.page-news .press-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .press-filter__input:focus-visible ~ .press-filter__bar {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.page-news .press-filter__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--rule);
}

.page-news .press-filter__tab {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.72rem;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-news .press-filter__tab:hover {
  transform: translateY(-1px);
  border-color: var(--ink);
}

.page-news .press-filter__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.page-news .press-filter__dot--all { background: var(--ink); }
.page-news .press-filter__dot--report { background: var(--summer); }
.page-news .press-filter__dot--version { background: var(--winter); }
.page-news .press-filter__dot--topic { background: var(--autumn); }
.page-news .press-filter__dot--fix { background: var(--accent); }

.page-news #pk-all:checked ~ .press-filter__bar [for="pk-all"],
.page-news #pk-report:checked ~ .press-filter__bar [for="pk-report"],
.page-news #pk-version:checked ~ .press-filter__bar [for="pk-version"],
.page-news #pk-topic:checked ~ .press-filter__bar [for="pk-topic"],
.page-news #pk-fix:checked ~ .press-filter__bar [for="pk-fix"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-news #pk-report:checked ~ .press-index > .entry:not(.entry--report),
.page-news #pk-version:checked ~ .press-index > .entry:not(.entry--version),
.page-news #pk-topic:checked ~ .press-index > .entry:not(.entry--topic),
.page-news #pk-fix:checked ~ .press-index > .entry:not(.entry--fix) {
  display: none;
}

/* ---------- 条目流 ---------- */
.page-news .press-index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-news .entry__inner {
  display: grid;
  grid-template-columns: 1.9rem 4px minmax(0, 1fr);
  grid-template-areas:
    "num mark body"
    "time time time";
  column-gap: 0.7rem;
  row-gap: 0.5rem;
  padding: 1rem 0.6rem 1rem 0.2rem;
  border-bottom: 1px solid var(--rule);
  transition: background-color 180ms var(--ease);
}

.page-news .entry__inner:hover {
  background: var(--paper-2);
}

.page-news .entry__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  padding-top: 0.2rem;
}

.page-news .entry__mark {
  grid-area: mark;
  border-radius: 2px;
  align-self: stretch;
  min-height: 1.4rem;
}

.page-news .entry__mark--summer { background: var(--summer); }
.page-news .entry__mark--winter { background: var(--winter); }
.page-news .entry__mark--autumn { background: var(--autumn); }
.page-news .entry__mark--spring { background: var(--spring); }
.page-news .entry__mark--accent { background: var(--accent); }

.page-news .entry__body {
  grid-area: body;
  min-width: 0;
}

.page-news .entry__title {
  margin: 0 0 0.3rem;
  font-size: 1.02rem;
  line-height: 1.5;
  font-weight: 700;
}

.page-news .entry__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.page-news .entry__more {
  margin-top: 0.5rem;
}

.page-news .entry__more summary {
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 700;
  list-style: none;
}

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

.page-news .entry__more summary::before {
  content: "+ ";
  font-family: var(--font-mono);
}

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

.page-news .entry__more p {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink);
  border-left: 2px solid var(--rule);
  padding-left: 0.75rem;
}

.page-news .entry__time {
  grid-area: time;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ---------- 栏目索引 ---------- */
.page-news .column-grid {
  display: grid;
  gap: 1rem;
}

.page-news .column-card {
  position: relative;
  padding: 1.1rem 1.1rem 1.2rem 1.4rem;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.page-news .column-card__mark {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
}

.page-news .column-card__mark--report { background: var(--summer); }
.page-news .column-card__mark--version { background: var(--winter); }
.page-news .column-card__mark--topic { background: var(--autumn); }
.page-news .column-card__mark--fix { background: var(--accent); }

.page-news .column-card__title {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
  font-weight: 800;
}

.page-news .column-card__cadence {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.page-news .column-card__desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-news .version-band {
  display: grid;
  gap: 1rem;
  margin-top: 1.4rem;
  padding: 1rem;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-left: 5px solid var(--winter);
  border-radius: var(--radius);
}

.page-news .version-band__figure {
  margin: 0;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 5px;
}

.page-news .version-band__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .version-band__label {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--winter);
}

.page-news .version-band__text {
  margin: 0 0 0.9rem;
  font-size: 0.93rem;
  line-height: 1.78;
}

/* ---------- 专题系列 ---------- */
.page-news .topics-layout {
  display: grid;
  gap: 1.4rem;
}

.page-news .topic-list {
  display: grid;
  gap: 1rem;
}

.page-news .topic {
  padding: 1rem 0 1.1rem;
  border-top: 1px solid var(--rule);
}

.page-news .topic:first-child {
  border-top: 2px solid var(--ink);
}

.page-news .topic__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.page-news .topic__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
}

.page-news .topic__desc {
  margin: 0 0 0.8rem;
  font-size: 0.93rem;
  line-height: 1.75;
}

.page-news .topic__track {
  position: relative;
  height: 10px;
  background: repeating-linear-gradient(
    90deg,
    var(--rule) 0 1px,
    transparent 1px 13px
  );
  border-bottom: 1px solid var(--rule);
}

.page-news .topic__fill {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 10px;
  background: var(--winter);
  transition: width 600ms var(--ease);
}

.page-news .topic__fill--full { width: 100%; }
.page-news .topic__fill--high { width: 88%; }
.page-news .topic__fill--mid { width: 74%; }

.page-news .topic__note {
  margin: 0.5rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-news .topics-figure {
  margin: 0;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 6px;
}

.page-news .topics-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .topics-figure__cap {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.page-news .topics-more {
  margin: 1.4rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-size: 0.92rem;
  line-height: 1.8;
  max-width: 62ch;
}

/* ---------- 勘误 ---------- */
.page-news .errata-banner {
  margin: 0 0 1.2rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.page-news .errata-banner img {
  display: block;
  width: 100%;
  height: clamp(90px, 16vw, 150px);
  object-fit: cover;
  opacity: 0.75;
}

.page-news .errata-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-news .errata-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.4rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--accent);
  border-left-width: 5px;
  background: var(--paper);
  border-radius: var(--radius);
}

.page-news .errata-item__code {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-news .errata-item__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-news .errata-item__text b {
  font-weight: 800;
}

.page-news .errata-foot {
  margin: 1.2rem 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 66ch;
}

/* ---------- 回溯 ---------- */
.page-news .archive-layout {
  display: grid;
  gap: 1.2rem;
}

.page-news .panel {
  border-radius: var(--radius);
}

.page-news .season-strip {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1rem;
  padding: 0;
}

.page-news .season-strip a {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(243, 237, 224, 0.35);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-news .season-strip a:hover {
  border-color: var(--fluoro);
  color: var(--fluoro);
}

.page-news .season-strip .is-current a {
  border-color: var(--fluoro);
  color: var(--fluoro);
  font-weight: 700;
}

.page-news .archive-note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
}

.page-news .archive-side {
  padding: 1.2rem;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--spring);
  border-radius: var(--radius);
}

.page-news .archive-side__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 800;
}

.page-news .archive-side__text {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.78;
}

.page-news .archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-news .column-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-news .version-band {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: center;
    gap: 1.4rem;
    padding: 1.1rem 1.3rem;
  }

  .page-news .errata-item {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.9rem;
  }
}

@media (min-width: 900px) {
  .page-news .press-head {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: end;
    gap: 2.6rem;
  }

  .page-news .entry__inner {
    grid-template-columns: 2.4rem 4px minmax(0, 1fr) 12rem;
    grid-template-areas: "num mark .page-news time";
    align-items: baseline;
    row-gap: 0;
    padding: 1.05rem 0.8rem 1.05rem 0.2rem;
  }

  .page-news .entry__time {
    text-align: right;
  }

  .page-news .topics-layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 2.4rem;
    align-items: start;
  }

  .page-news .archive-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 1.6rem;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .press-filter__tab,
  .page-news .entry__inner,
  .page-news .topic__fill,
  .page-news .season-strip a {
    transition: none;
  }
}