/* ===== 版本动态 / 归档册 ===== */
.page-news {
  --pn-rule: var(--orbit);
  --pn-soft: rgba(169, 182, 204, .55);
  --pn-veil: rgba(14, 23, 48, .55);
  display: block;
}

.page-news .pn-block {
  position: relative;
}

.page-news .pn-block + .pn-block {
  border-top: 1px solid var(--orbit);
}

/* 章节头 */
.page-news .pn-head {
  max-width: 42em;
  margin-bottom: 28px;
}

.page-news .pn-head h2 {
  font-family: var(--font-title);
  font-size: 28px;
  line-height: 1.25;
  letter-spacing: -.01em;
  margin: 6px 0 0;
  color: var(--paper);
}

.page-news .pn-head__lede {
  margin: 12px 0 0;
  color: var(--mist);
  font-size: var(--fs-aux);
  line-height: 1.75;
}

.page-news .pn-head--split {
  max-width: none;
  display: grid;
  gap: 16px;
}

.page-news .pn-head__side {
  margin: 0;
  color: var(--mist);
  font-size: var(--fs-aux);
  line-height: 1.75;
  border-left: 1px solid var(--orbit);
  padding-left: 16px;
}

/* ===== 首屏 ===== */
.page-news .pn-hero {
  padding-top: 20px;
  padding-bottom: 40px;
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(138, 92, 246, .18), transparent 62%),
    radial-gradient(90% 70% at 5% 100%, rgba(53, 224, 208, .10), transparent 60%);
}

.page-news .pn-hero__grid {
  display: grid;
  gap: 26px;
}

.page-news .pn-index {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--orbit);
}

.page-news .pn-index__link {
  font-family: var(--font-mono);
  font-size: var(--fs-tiny);
  letter-spacing: .06em;
  color: var(--mist);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .pn-index__link:hover,
.page-news .pn-index__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news .pn-index__link[aria-current] {
  color: var(--paper);
  border-bottom-color: var(--violet);
}

.page-news .pn-hero h1 {
  font-family: var(--font-title);
  font-size: 36px;
  line-height: 1.12;
  letter-spacing: -.02em;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-news .pn-hero .lede {
  margin: 14px 0 0;
  color: var(--mist);
  font-size: var(--fs-body);
  line-height: 1.75;
  max-width: 34em;
}

.page-news .pn-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-news .pn-hero__actions .btn {
  font-size: var(--fs-aux);
  padding: 10px 18px;
}

.page-news .pn-hero__meta {
  border: 1px solid var(--orbit);
  background: linear-gradient(180deg, var(--nebula), rgba(7, 11, 24, .6));
  padding: 18px;
  align-self: start;
}

.page-news .pn-badge {
  display: inline-block;
  margin: 0 0 14px;
  font-size: var(--fs-tiny);
  letter-spacing: .08em;
  color: var(--ink);
  background: var(--gold);
  padding: 3px 10px;
}

.page-news .pn-badge .mono {
  font-weight: 600;
  margin-right: 6px;
}

.page-news .pn-facts {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-news .pn-facts__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--orbit);
}

.page-news .pn-facts__row:last-child {
  border-bottom: 0;
}

.page-news .pn-facts dt {
  font-size: var(--fs-tiny);
  color: var(--mist);
}

.page-news .pn-facts dd {
  margin: 0;
  font-size: var(--fs-aux);
  color: var(--paper);
}

.page-news .pn-hero__hint {
  margin: 14px 0 0;
  font-size: var(--fs-tiny);
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--orbit);
  padding-top: 12px;
}

/* ===== 本月要点 ===== */
.page-news .pn-cover {
  display: grid;
  gap: 20px;
  margin-bottom: 34px;
}

.page-news .pn-frame--cover,
.page-news .pn-frame--axis,
.page-news .pn-frame--path,
.page-news .pn-frame--tags {
  background:
    linear-gradient(180deg, rgba(28, 43, 74, .55), rgba(7, 11, 24, .9)),
    var(--nebula);
}

.page-news .pn-frame--cover { aspect-ratio: 16 / 9; }
.page-news .pn-frame--axis { aspect-ratio: 5 / 2; }
.page-news .pn-frame--path { aspect-ratio: 11 / 7; }
.page-news .pn-frame--tags { aspect-ratio: 5 / 3; }

.page-news .pn-cover__aside {
  border-left: 3px solid var(--gold);
  padding: 4px 0 4px 16px;
  align-self: start;
}

.page-news .pn-cover__count {
  font-size: 48px;
  line-height: 1;
  color: var(--paper);
  margin: 0;
  letter-spacing: -.03em;
}

.page-news .pn-cover__count-label {
  margin: 4px 0 12px;
  font-size: var(--fs-tiny);
  letter-spacing: .12em;
  color: var(--gold);
}

.page-news .pn-cover__text {
  margin: 0 0 16px;
  font-size: var(--fs-aux);
  line-height: 1.75;
  color: var(--mist);
  max-width: 30em;
}

.page-news .pn-changes {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--orbit);
}

.page-news .pn-change {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--orbit);
  transition: background-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-news .pn-change:hover {
  background: var(--pn-veil);
  padding-left: 10px;
}

.page-news .pn-change__no {
  font-size: var(--fs-tiny);
  color: var(--violet);
  letter-spacing: .1em;
}

.page-news .pn-change__title {
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-size: var(--fs-sm);
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pn-change__body p {
  margin: 0;
  font-size: var(--fs-aux);
  line-height: 1.75;
  color: var(--mist);
  max-width: 44em;
}

.page-news .pn-tag {
  justify-self: start;
  display: inline-block;
  font-size: 12px;
  line-height: 1.6;
  padding: 2px 9px;
  border: 1px solid var(--orbit);
  color: var(--mist);
  white-space: nowrap;
}

.page-news .pn-tag--nav { border-color: var(--violet); color: #C3A8FF; }
.page-news .pn-tag--sync { border-color: var(--cyan); color: var(--cyan); }
.page-news .pn-tag--lib { border-color: var(--gold); color: var(--gold); }
.page-news .pn-tag--app { border-color: var(--wine); color: #E58AAE; }

.page-news .pn-footnote {
  margin: 18px 0 0;
  font-size: var(--fs-tiny);
  line-height: 1.7;
  color: var(--mist);
  border-left: 1px solid var(--orbit);
  padding-left: 14px;
}

/* ===== 按月归档 ===== */
.page-news .pn-block--archive {
  background: linear-gradient(180deg, rgba(14, 23, 48, .72), rgba(7, 11, 24, 0) 70%);
}

.page-news .pn-axis-figure {
  margin: 0 0 30px;
}

.page-news .pn-months {
  display: grid;
  gap: 22px;
}

.page-news .pn-month {
  border-top: 1px solid var(--orbit);
  padding-top: 14px;
}

.page-news .pn-month__head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.page-news .pn-month__dot {
  width: 8px;
  height: 8px;
  background: var(--gold);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-news .pn-month__name {
  margin: 0;
  font-family: var(--font-title);
  font-size: var(--fs-body);
  color: var(--paper);
  letter-spacing: .01em;
}

.page-news .pn-month__count {
  font-size: var(--fs-tiny);
  color: var(--mist);
  margin-left: auto;
}

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

.page-news .pn-line {
  display: grid;
  grid-template-columns: 4.5em 1fr auto;
  gap: 6px 12px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px dashed var(--pn-soft);
}

.page-news .pn-line:last-child {
  border-bottom: 1px dashed var(--orbit);
}

.page-news .pn-line__ver {
  font-size: var(--fs-tiny);
  color: var(--cyan);
}

.page-news .pn-line__text {
  font-size: var(--fs-aux);
  line-height: 1.6;
  color: var(--mist);
}

.page-news .pn-month__more {
  margin: 10px 0 0;
  font-size: var(--fs-tiny);
  color: var(--mist);
  opacity: .85;
}

.page-news .pn-archive-note {
  margin-top: 28px;
}

/* ===== 历史版本 ===== */
.page-news .pn-block--legacy {
  background: linear-gradient(180deg, rgba(168, 48, 92, .12), rgba(7, 11, 24, 0) 62%);
}

.page-news .pn-timeline {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 22px 0 18px;
  margin: 0 0 8px;
  border-top: 1px solid var(--orbit);
  border-bottom: 1px solid var(--orbit);
  scrollbar-width: thin;
}

.page-news .pn-timeline::-webkit-scrollbar {
  height: 6px;
}

.page-news .pn-timeline::-webkit-scrollbar-thumb {
  background: var(--orbit);
}

.page-news .pn-node {
  position: relative;
  flex: 0 0 232px;
  display: grid;
  gap: 6px;
  padding: 18px 16px 16px;
  border: 1px solid var(--orbit);
  background: rgba(14, 23, 48, .5);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-news .pn-node:hover,
.page-news .pn-node:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(28, 43, 74, .6);
}

.page-news .pn-node__dot {
  position: absolute;
  top: -4px;
  left: 16px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-news .pn-node--current {
  border-color: var(--violet);
}

.page-news .pn-node--current .pn-node__dot {
  background: var(--gold);
}

.page-news .pn-node__ver {
  font-size: var(--fs-sm);
  color: var(--paper);
}

.page-news .pn-node__title {
  font-family: var(--font-title);
  font-size: var(--fs-aux);
  color: var(--paper);
}

.page-news .pn-node__desc {
  font-size: var(--fs-tiny);
  line-height: 1.7;
  color: var(--mist);
}

.page-news .pn-legacy__grid {
  display: grid;
  gap: 24px;
  margin-top: 26px;
}

.page-news .pn-legacy__text h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: var(--fs-sm);
  color: var(--paper);
}

.page-news .pn-legacy__text p {
  margin: 0 0 12px;
  font-size: var(--fs-aux);
  line-height: 1.78;
  color: var(--mist);
  max-width: 36em;
}

.page-news .pn-legacy__actions,
.page-news .pn-index__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ===== 分类回溯 ===== */
.page-news .pn-block--index {
  background: linear-gradient(180deg, rgba(15, 59, 63, .55), rgba(7, 11, 24, 0) 74%);
}

.page-news .pn-index-grid {
  display: grid;
  gap: 1px;
  background: var(--orbit);
  border: 1px solid var(--orbit);
  margin-bottom: 34px;
}

.page-news .pn-cat {
  background: var(--ink);
  padding: 20px 18px;
  transition: background-color var(--dur) var(--ease);
}

.page-news .pn-cat:hover {
  background: var(--nebula);
}

.page-news .pn-cat h3 {
  margin: 12px 0 8px;
  font-family: var(--font-title);
  font-size: var(--fs-aux);
  color: var(--paper);
}

.page-news .pn-cat p {
  margin: 0 0 10px;
  font-size: var(--fs-tiny);
  line-height: 1.72;
  color: var(--mist);
}

.page-news .pn-cat__hint {
  font-size: 12px;
  color: var(--mist);
  opacity: .8;
  margin: 0;
}

.page-news .pn-index__aside {
  display: grid;
  gap: 24px;
}

.page-news .pn-index__ways h3 {
  margin: 0 0 14px;
  font-family: var(--font-title);
  font-size: var(--fs-sm);
  color: var(--paper);
}

.page-news .pn-ways {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .pn-ways li {
  display: grid;
  grid-template-columns: 2em 1fr;
  gap: 10px;
  border-left: 1px solid var(--orbit);
  padding-left: 12px;
}

.page-news .pn-ways__no {
  font-size: var(--fs-tiny);
  color: var(--gold);
  padding-top: 3px;
}

.page-news .pn-ways p {
  margin: 0;
  font-size: var(--fs-aux);
  line-height: 1.75;
  color: var(--mist);
}

.page-news .pn-ways strong {
  color: var(--paper);
  font-weight: 600;
}

.page-news .pn-index__more {
  margin: 18px 0 0;
  font-size: var(--fs-tiny);
  line-height: 1.75;
  color: var(--mist);
  border-top: 1px dashed var(--orbit);
  padding-top: 14px;
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-news .pn-hero h1 {
    font-size: 44px;
  }
  .page-news .pn-head h2 {
    font-size: 32px;
  }
  .page-news .pn-head--split {
    grid-template-columns: 1.35fr 1fr;
    align-items: end;
    gap: 30px;
  }
  .page-news .pn-cover {
    grid-template-columns: 7fr 4fr;
    align-items: center;
    gap: 26px;
  }
  .page-news .pn-months {
    grid-template-columns: 1fr 1fr;
  }
  .page-news .pn-legacy__grid {
    grid-template-columns: 5fr 6fr;
    align-items: start;
  }
  .page-news .pn-index-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1000px) {
  .page-news .pn-hero {
    padding-top: 32px;
    padding-bottom: 56px;
  }
  .page-news .pn-hero__grid {
    grid-template-columns: 3fr 6fr 3fr;
    gap: 34px;
    align-items: start;
  }
  .page-news .pn-hero h1 {
    font-size: 48px;
  }
  .page-news .pn-head h2 {
    font-size: 36px;
  }
  .page-news .pn-changes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 40px;
  }
  .page-news .pn-change {
    grid-template-columns: 2.6em 1fr;
    align-items: start;
  }
  .page-news .pn-change .pn-tag {
    grid-column: 2;
  }
  .page-news .pn-index-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-news .pn-index__aside {
    grid-template-columns: 5fr 6fr;
    gap: 34px;
    align-items: start;
  }
  .page-news .pn-node {
    flex: 0 0 248px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-node:hover,
  .page-news .pn-node:focus-visible {
    transform: none;
  }
  .page-news .pn-change:hover {
    padding-left: 0;
  }
}