.page-news {
  --news-line: rgba(30, 44, 85, .85);
  --news-panel-bg: rgba(30, 44, 85, .28);
  --news-gap: clamp(24px, 4vw, 56px);
  background: var(--ink);
  color: var(--cream);
  overflow-x: hidden;
}

.page-news img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-news__h2 {
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1.16;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--cream);
  margin: 6px 0 0;
}

/* ---------- 首屏 ---------- */

.page-news__hero {
  position: relative;
  padding: clamp(24px, 5vw, 56px) 0 clamp(28px, 5vw, 56px);
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(44, 229, 216, .14), transparent 58%),
    radial-gradient(90% 80% at 4% 100%, rgba(79, 139, 98, .16), transparent 62%),
    var(--ink-deep);
  border-bottom: 1px solid var(--news-line);
}

.page-news__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(30, 44, 85, .55) 1px, transparent 1px);
  background-size: 88px 100%;
  opacity: .5;
}

.page-news__hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-news__hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-news__hero-copy .display {
  margin: 10px 0 0;
}

.page-news__lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(242, 239, 230, .84);
}

.page-news__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news__hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--news-line);
  border: 1px solid var(--news-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-news__stat {
  background: rgba(11, 18, 48, .88);
  padding: clamp(14px, 2vw, 20px);
}

.page-news__stat dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-news__stat dd {
  margin: 8px 0 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-news__stat-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: .01em;
}

.page-news__stat small {
  font-size: 12px;
  color: var(--stone);
}

.page-news__hero-photo {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

/* ---------- 更新流 ---------- */

.page-news__board {
  padding: clamp(44px, 7vw, 96px) 0;
  background: var(--ink);
}

.page-news__board-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-news__feed {
  min-width: 0;
}

.page-news__board .filter-bar {
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

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

.page-news__item {
  position: relative;
  padding: clamp(16px, 2.2vw, 22px) 0;
  padding-left: 0;
  border-bottom: 1px solid var(--news-line);
  transition: padding-left .22s var(--ease), background .22s var(--ease);
}

.page-news__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 0;
  background: var(--cyan);
  transform: translateY(-50%) skewY(-12deg);
  transition: height .22s var(--ease);
}

.page-news__item:hover,
.page-news__item:focus-within {
  padding-left: 16px;
  background: rgba(44, 229, 216, .045);
}

.page-news__item:hover::before,
.page-news__item:focus-within::before {
  height: 62%;
}

.page-news__item-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

.page-news__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news__title {
  margin: 10px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.55;
  font-weight: 600;
  color: var(--cream);
  letter-spacing: -.005em;
}

.page-news__sum {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--stone);
  max-width: 68ch;
}

.page-news__item.is-filtered-out {
  display: none;
}

.page-news__empty {
  margin: 24px 0 0;
  padding: 18px 20px;
  border: 1px dashed var(--news-line);
  border-radius: var(--r-md);
  font-size: 14px;
  color: var(--stone);
  font-family: var(--font-mono);
  letter-spacing: .04em;
}

/* ---------- 侧栏 ---------- */

.page-news__side {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-news__panel {
  border: 1px solid var(--news-line);
  border-radius: var(--r-md);
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--news-panel-bg);
}

.page-news__panel--clay {
  border-color: rgba(196, 106, 69, .55);
  background:
    linear-gradient(160deg, rgba(196, 106, 69, .16), rgba(11, 18, 48, .1) 65%),
    var(--news-panel-bg);
}

.page-news__panel-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 600;
}

.page-news__panel-body {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 239, 230, .8);
}

.page-news__index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news__index li {
  border-bottom: 1px solid rgba(30, 44, 85, .6);
}

.page-news__index li:last-child {
  border-bottom: 0;
}

.page-news__index a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  color: var(--cream);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.45;
  transition: color .18s var(--ease);
}

.page-news__index a:hover,
.page-news__index a:focus-visible {
  color: var(--cyan);
}

/* ---------- 十二栏目 ---------- */

.page-news__columns {
  padding: clamp(44px, 7vw, 96px) 0;
  background: var(--ink-deep);
  border-top: 1px solid var(--news-line);
  border-bottom: 1px solid var(--news-line);
}

.page-news__cols {
  list-style: none;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-news__col {
  background: var(--ink-deep);
  padding: clamp(18px, 2.2vw, 26px);
  transition: background .2s var(--ease);
}

.page-news__col:hover {
  background: rgba(44, 229, 216, .06);
}

.page-news__code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
  padding: 2px 8px;
  border: 1px solid rgba(240, 194, 78, .38);
  border-radius: var(--r-sm);
}

.page-news__col h3 {
  margin: 12px 0 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: -.005em;
}

.page-news__col p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--stone);
}

/* ---------- 专题 ---------- */

.page-news__series {
  padding: clamp(44px, 7vw, 96px) 0;
  background: var(--ink);
}

.page-news__series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-news__series-photo {
  margin: 0;
}

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

.page-news__series-item {
  position: relative;
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid rgba(196, 106, 69, .5);
  border-radius: var(--r-md);
  background:
    linear-gradient(150deg, rgba(196, 106, 69, .12), transparent 70%),
    rgba(30, 44, 85, .18);
}

.page-news__series-item h3 {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--cream);
}

.page-news__series-item p {
  margin: 8px 0 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(242, 239, 230, .78);
}

/* ---------- 版本记录 ---------- */

.page-news__versions {
  padding: clamp(44px, 7vw, 96px) 0;
  background: var(--ink-deep);
  border-top: 1px solid var(--news-line);
}

.page-news__versions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-news__version-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(18px, 2.4vw, 28px);
  border-left: 1px solid var(--news-line);
  position: relative;
}

.page-news__version {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 32px);
}

.page-news__version:last-child {
  padding-bottom: 0;
}

.page-news__version::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(18px, 2.4vw, 28px) - 5px);
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-deep);
  border: 2px solid var(--cyan);
}

.page-news__ver-no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-news__version h3 {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--cream);
}

.page-news__version p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--stone);
  max-width: 62ch;
}

.page-news__versions-aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-news__versions-photo {
  margin: 0;
}

.page-news__aside-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(242, 239, 230, .78);
  padding-left: 14px;
  border-left: 3px solid var(--red);
}

.page-news__versions-aside .btn {
  justify-self: start;
}

/* ---------- 投稿 ---------- */

.page-news__submit {
  padding: clamp(44px, 7vw, 96px) 0;
  background:
    radial-gradient(90% 100% at 100% 0%, rgba(79, 139, 98, .18), transparent 60%),
    var(--ink);
  border-top: 1px solid var(--news-line);
}

.page-news__submit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  align-items: start;
}

.page-news__submit-copy {
  min-width: 0;
}

.page-news__submit-copy > p {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: 16px;
  line-height: 1.85;
  max-width: 62ch;
  color: rgba(242, 239, 230, .82);
}

.page-news__submit-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-news__submit-list li {
  background: rgba(11, 18, 48, .82);
  padding: clamp(15px, 2vw, 20px);
}

.page-news__submit-list strong {
  display: block;
  margin: 8px 0 0;
  font-size: 16px;
  color: var(--cream);
}

.page-news__submit-list p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-news__submit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news__submit-photo {
  margin: 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news__submit-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news__hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
  }

  .page-news__hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news__series-grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-news__versions-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-news__submit-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  }
}

@media (min-width: 1040px) {
  .page-news__board-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-news__item,
  .page-news__item::before,
  .page-news__col,
  .page-news__index a {
    transition: none;
  }
}