.page-news {
  --news-gap: clamp(18px, 2.6vw, 32px);
  --news-nav-offset: 72px;
  background: var(--c-base);
  color: var(--c-text);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: clamp(440px, 62vh, 640px);
  padding-top: clamp(84px, 13vh, 148px);
  padding-bottom: clamp(34px, 5vw, 68px);
  overflow: hidden;
  border-bottom: 1px solid var(--c-line);
}

.page-news .news-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-news .news-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 64%;
  filter: saturate(0.86);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(10, 30, 25, 0.48) 0%, rgba(10, 30, 25, 0.8) 48%, rgba(10, 30, 25, 0.97) 100%),
    linear-gradient(114deg, rgba(20, 72, 58, 0.86) 0%, rgba(20, 72, 58, 0) 62%);
}

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

.page-news .news-hero .crumbs {
  margin-bottom: 18px;
}

.page-news .news-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--c-neon);
}

.page-news .news-hero__title {
  margin: 0 0 18px;
  max-width: 15ch;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7.6vw, 5.2rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--c-text);
}

.page-news .news-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(234, 242, 238, 0.8);
}

.page-news .news-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-hero__facts li {
  padding: 5px 12px;
  border: 1px solid rgba(62, 224, 192, 0.34);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(234, 242, 238, 0.78);
}

/* ---------- 主体三栏 ---------- */
.page-news .news-stream {
  padding-top: clamp(28px, 4vw, 52px);
}

.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  align-items: start;
}

.page-news .news-rail {
  position: sticky;
  top: var(--news-nav-offset);
  z-index: 6;
  background: var(--c-base);
  padding: 10px 0 6px;
  margin: -10px 0 0;
}

.page-news .news-rail__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--c-text-dim);
}

.page-news .news-cats {
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-news .news-cats .tab {
  --cat: var(--c-turf);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  flex: 0 0 auto;
  width: auto;
  padding: 9px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-s);
  background: transparent;
  color: var(--c-text-dim);
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  transition: background var(--dur) ease, color var(--dur) ease, border-color var(--dur) ease;
}

.page-news .news-cats .tab:nth-child(1) { --cat: var(--c-turf); }
.page-news .news-cats .tab:nth-child(2) { --cat: var(--c-data); }
.page-news .news-cats .tab:nth-child(3) { --cat: var(--c-neon); }
.page-news .news-cats .tab:nth-child(4) { --cat: var(--c-orange); }

.page-news .news-cats .tab__hint {
  display: none;
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--c-text-dim);
}

.page-news .news-cats .tab:hover {
  color: var(--c-text);
  border-color: rgba(154, 163, 160, 0.5);
}

.page-news .news-cats .tab[aria-selected="true"] {
  color: var(--c-text);
  border-color: var(--cat);
  background: rgba(255, 255, 255, 0.05);
}

.page-news .news-cats .tab[aria-selected="true"] .tab__hint {
  color: rgba(234, 242, 238, 0.62);
}

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

.page-news .tabpanel {
  outline: none;
}

.page-news .tabpanel[hidden],
.page-news .tabpanel.is-hidden {
  display: none;
}

.page-news .tabpanel:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 6px;
}

.page-news .news-main__lead {
  margin: 0 0 20px;
  max-width: 54ch;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
  line-height: 1.72;
  color: rgba(234, 242, 238, 0.68);
}

/* ---------- 条目列表 ---------- */
.page-news .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .entry {
  --cat: var(--c-turf);
  display: grid;
  grid-template-columns: 3px minmax(0, 1fr);
  gap: 0 16px;
  padding: 15px 10px 15px 0;
  border-bottom: 1px solid var(--c-line-soft);
  transition: background var(--dur) ease;
}

.page-news .entry:first-child {
  border-top: 1px solid var(--c-line-soft);
}

.page-news .entry:hover {
  background: rgba(255, 255, 255, 0.032);
}

.page-news .tabpanel--retro .entry { --cat: var(--c-turf); }
.page-news .tabpanel--player .entry { --cat: var(--c-data); }
.page-news .tabpanel--method .entry { --cat: var(--c-neon); }
.page-news .tabpanel--notes .entry { --cat: var(--c-orange); }

.page-news .entry__bar {
  align-self: stretch;
  border-radius: 2px;
  background: var(--cat);
  opacity: 0.5;
  transition: opacity var(--dur) ease;
}

.page-news .entry:hover .entry__bar {
  opacity: 1;
}

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

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 6px;
}

.page-news .entry__time {
  padding: 2px 9px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--c-text-dim);
  white-space: nowrap;
}

.page-news .entry__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.44;
  color: var(--c-text);
}

.page-news .entry__sum {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(234, 242, 238, 0.6);
}

/* ---------- 右栏卡片 ---------- */
.page-news .news-side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-news .side-card {
  padding: 18px 18px 20px;
  border-radius: var(--radius-m);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-news .side-card--paper {
  background: var(--c-paper);
  color: var(--c-ink);
}

.page-news .side-card--turf {
  background: var(--c-home);
  color: var(--c-text);
  border: 1px solid rgba(62, 224, 192, 0.22);
}

.page-news .side-card--dark {
  background: rgba(255, 255, 255, 0.04);
  color: var(--c-text);
  border: 1px solid var(--c-line);
}

.page-news .side-card__eyebrow {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

.page-news .side-card--paper .side-card__eyebrow { color: var(--c-orange-deep); }
.page-news .side-card--turf .side-card__eyebrow { color: var(--c-neon); }
.page-news .side-card--dark .side-card__eyebrow { color: var(--c-text-dim); }

.page-news .side-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-news .side-card__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.72;
}

.page-news .side-card--paper .side-card__text { color: rgba(10, 30, 25, 0.76); }
.page-news .side-card--turf .side-card__text { color: rgba(234, 242, 238, 0.78); }
.page-news .side-card--dark .side-card__text { color: rgba(234, 242, 238, 0.7); }

.page-news .side-card__link {
  display: inline-block;
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-news .side-card--paper .side-card__link { color: var(--c-orange-deep); }
.page-news .side-card--turf .side-card__link { color: var(--c-neon); }
.page-news .side-card--dark .side-card__link { color: var(--c-orange); }

.page-news .side-card__link:hover {
  opacity: 0.82;
}

/* ---------- 横条图 ---------- */
.page-news .news-strip {
  padding: clamp(20px, 3vw, 40px) 0 0;
}

.page-news .news-strip__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-m);
  border: 1px solid var(--c-line-soft);
}

.page-news .news-strip__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.86);
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding-top: clamp(38px, 5.2vw, 76px);
}

.page-news .news-series__grid {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: series;
}

.page-news .series-item {
  position: relative;
  padding: 20px 0 22px 58px;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-news .series-item:first-child {
  border-top: 1px solid var(--c-line-soft);
}

.page-news .series-item__index {
  position: absolute;
  left: 0;
  top: 20px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-orange);
}

.page-news .series-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18.5px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--c-text);
}

.page-news .series-item__text {
  margin: 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(234, 242, 238, 0.66);
}

.page-news .news-series__media {
  overflow: hidden;
  border-radius: var(--radius-m);
  border: 1px solid var(--c-line-soft);
  margin-top: 4px;
}

.page-news .news-series__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.88);
}

/* ---------- 编辑部 ---------- */
.page-news .news-team {
  padding-top: clamp(38px, 5.2vw, 76px);
}

.page-news .news-team__grid {
  row-gap: clamp(20px, 3vw, 34px);
}

.page-news .news-team .section__title {
  margin-bottom: 14px;
}

.page-news .news-team .prose {
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(234, 242, 238, 0.72);
}

.page-news .team-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-line-soft);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-news .team-list li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  padding: 13px 15px;
  background: var(--c-home);
  font-size: 14px;
  line-height: 1.62;
  color: rgba(234, 242, 238, 0.76);
}

.page-news .team-list__k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--c-neon);
}

.page-news .news-team__media {
  overflow: hidden;
  border-radius: var(--radius-m);
  border: 1px solid var(--c-line-soft);
}

.page-news .news-team__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.85);
}

/* ---------- 投稿与勘误 ---------- */
.page-news .news-contribute {
  padding-bottom: clamp(44px, 6vw, 88px);
}

.page-news .news-contribute .eyebrow {
  color: var(--c-orange-deep);
}

.page-news .news-contribute .section__title {
  color: var(--c-ink);
}

.page-news .news-contribute .section__lead {
  color: rgba(10, 30, 25, 0.74);
}

.page-news .contrib-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .contrib-card {
  background: var(--c-paper);
  border-left: 3px solid var(--c-orange);
  border-radius: var(--radius-s) var(--radius-m) var(--radius-m) var(--radius-s);
  padding: 20px 20px 22px;
}

.page-news .contrib-card__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--c-ink);
}

.page-news .contrib-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-news .contrib-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.66;
  color: rgba(10, 30, 25, 0.8);
}

.page-news .contrib-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--c-turf);
}

.page-news .contrib-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .contrib-note {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(10, 30, 25, 0.62);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news {
    --news-nav-offset: 84px;
  }

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

@media (min-width: 1000px) {
  .page-news {
    --news-nav-offset: 118px;
  }

  .page-news .news-layout {
    grid-template-columns: 214px minmax(0, 1fr) 262px;
    grid-template-areas: "rail stream side";
  }

  .page-news .news-rail {
    grid-area: rail;
    padding-top: 0;
    margin-top: 0;
  }

  .page-news .news-main {
    grid-area: stream;
  }

  .page-news .news-side {
    grid-area: side;
  }

  .page-news .news-cats {
    flex-direction: column;
    gap: 6px;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-news .news-cats .tab {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid transparent;
    border-left: 3px solid var(--c-line);
    border-radius: 0 var(--radius-s) var(--radius-s) 0;
  }

  .page-news .news-cats .tab__hint {
    display: block;
  }

  .page-news .news-cats .tab[aria-selected="true"] {
    border-color: transparent;
    border-left-color: var(--cat);
  }

  .page-news .entry__title {
    font-size: 17.5px;
  }

  .page-news .news-series__grid {
    align-items: start;
  }
}

@media (min-width: 1240px) {
  .page-news .news-layout {
    grid-template-columns: 232px minmax(0, 1fr) 286px;
  }

  .page-news .entry__title {
    font-size: 18.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry__bar,
  .page-news .news-cats .tab,
  .page-news .side-card__link {
    transition: none;
  }
}