.page-news {
  --news-block-gap: clamp(44px, 8vw, 96px);
  background:
    radial-gradient(120% 55% at 108% 0%, rgba(34, 48, 63, .62) 0%, rgba(6, 26, 21, 0) 60%),
    var(--arena-ink);
  color: var(--arena-text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  border-radius: 0 0 clamp(28px, 6vw, 56px) clamp(28px, 6vw, 56px);
  background: var(--arena-slate-a);
  isolation: isolate;
}

.page-news .news-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .news-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: 62% 50%;
  opacity: .58;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(100deg,
      rgba(6, 26, 21, .97) 0%,
      rgba(6, 26, 21, .9) 36%,
      rgba(6, 26, 21, .46) 64%,
      rgba(22, 33, 46, .86) 100%);
}

.page-news .news-hero-shell {
  position: relative;
  z-index: 2;
}

.page-news .news-hero-body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: clamp(32px, 12vw, 88px);
  min-height: clamp(440px, 60vh, 640px);
  width: 100%;
  max-width: calc(var(--arena-shell) + var(--arena-gutter) * 2);
  margin-inline: auto;
  padding: clamp(28px, 6vw, 44px) var(--arena-gutter) clamp(44px, 7vw, 80px);
}

.page-news .news-hero .arena-crumbs {
  margin: 0;
}

.page-news .news-hero-main {
  display: grid;
  gap: 12px;
  justify-items: start;
}

.page-news .news-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--arena-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--arena-cyan);
}

.page-news .news-hero-eyebrow::before {
  content: "";
  display: block;
  width: 32px;
  height: 2px;
  background: var(--arena-cyan);
  transform: skewX(-12deg);
}

.page-news .news-hero h1 {
  margin: 0;
  font-size: clamp(42px, 12vw, 92px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.04em;
}

.page-news .news-hero-lede {
  max-width: 42ch;
  margin: 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.75;
  color: var(--arena-text);
}

.page-news .news-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: 6px;
}

.page-news .news-hero-meta span {
  font-family: var(--arena-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--arena-cyan-soft);
  padding: 5px 10px;
  border: 1px solid rgba(47, 243, 208, .28);
  border-radius: 6px;
  background: rgba(12, 44, 36, .68);
  white-space: nowrap;
}

/* ---------- 区块通用 ---------- */
.page-news .news-block {
  padding-block: clamp(48px, 9vw, 108px);
}

.page-news .news-block-head {
  display: grid;
  gap: 10px;
  max-width: 62ch;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-news .news-block-head .arena-lede {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--arena-muted);
}

/* ---------- 置顶专题 ---------- */
.page-news .news-top-grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  align-items: center;
}

.page-news .news-top-copy {
  display: grid;
  gap: 14px;
  justify-items: start;
}

.page-news .news-top-copy .arena-lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--arena-muted);
}

.page-news .news-top-order {
  list-style: none;
  margin: 4px 0 8px;
  padding: 0;
  display: grid;
  gap: 12px;
  width: 100%;
}

.page-news .news-top-order li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--arena-line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--arena-text);
}

.page-news .news-top-order li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .news-top-order span {
  font-family: var(--arena-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--arena-cyan);
  padding-top: 4px;
}

.page-news .news-top-media {
  position: relative;
  margin: 0;
  clip-path: polygon(0 7%, 100% 0, 100% 93%, 0 100%);
  background: var(--arena-panel);
  overflow: hidden;
}

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

.page-news .news-top-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 18px;
  font-family: var(--arena-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--arena-cyan-soft);
  background: linear-gradient(180deg, rgba(6, 26, 21, 0) 0%, rgba(6, 26, 21, .9) 78%);
}

/* ---------- 分类标签 ---------- */
.page-news .news-tabs-band {
  border-block: 1px solid var(--arena-line);
  background: linear-gradient(180deg, rgba(22, 33, 46, 0) 0%, rgba(22, 33, 46, .55) 50%, rgba(22, 33, 46, 0) 100%);
}

.page-news .news-tabs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-tab {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--arena-line);
  border-radius: var(--arena-radius-sm);
  background: var(--arena-panel);
  color: var(--arena-text);
  text-decoration: none;
  transition: border-color 300ms var(--arena-ease), transform 300ms var(--arena-ease);
}

.page-news .news-tab:hover,
.page-news .news-tab:focus-visible {
  border-color: var(--arena-cyan);
  transform: translateY(-3px);
}

.page-news .news-tab-code {
  font-family: var(--arena-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--arena-cyan);
}

.page-news .news-tab-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-news .news-tab-note {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--arena-muted);
}

/* ---------- 条目列表 ---------- */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--arena-line);
}

.page-news .news-item {
  display: grid;
  gap: 8px;
  padding: clamp(18px, 3.2vw, 26px) 0;
  border-top: 1px solid var(--arena-line);
}

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

.page-news .news-item-code {
  font-family: var(--arena-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
  color: var(--arena-cyan-soft);
  padding: 3px 8px;
  border: 1px solid var(--arena-line);
  border-radius: 6px;
  transition: color 280ms var(--arena-ease), border-color 280ms var(--arena-ease);
}

.page-news .news-item:hover .news-item-code {
  color: var(--arena-cyan);
  border-color: var(--arena-cyan);
}

.page-news .news-item-tag {
  font-family: var(--arena-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--arena-muted);
}

.page-news .news-item-main {
  display: grid;
  gap: 6px;
}

.page-news .news-item-title {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--arena-text);
}

.page-news .news-item-text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--arena-muted);
}

/* ---------- 图文分栏 ---------- */
.page-news .news-split {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  align-items: end;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-news .news-split .news-block-head {
  margin-bottom: 0;
}

.page-news .news-split-media {
  margin: 0;
}

.page-news .news-split-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--arena-radius-organic);
  object-fit: cover;
}

/* ---------- 版本记录 ---------- */
.page-news .news-version-wrap {
  overflow-x: auto;
  border: 1px solid var(--arena-line);
  border-radius: var(--arena-radius-md);
  background: var(--arena-panel);
  -webkit-overflow-scrolling: touch;
}

.page-news .news-version-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-news .news-version-table th,
.page-news .news-version-table td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: 1px solid var(--arena-line);
}

.page-news .news-version-table thead th {
  font-family: var(--arena-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--arena-muted);
  background: rgba(22, 33, 46, .72);
  white-space: nowrap;
}

.page-news .news-version-table tbody tr:last-child th,
.page-news .news-version-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-news .news-version-table td:first-child {
  font-family: var(--arena-mono);
  font-variant-numeric: tabular-nums;
  color: var(--arena-cyan-soft);
  white-space: nowrap;
}

.page-news .news-version-table tbody tr:hover td {
  background: rgba(47, 243, 208, .05);
}

.page-news .news-ver-tag {
  display: inline-block;
  font-family: var(--arena-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.page-news .news-ver-tag--current {
  color: var(--arena-cyan);
  border: 1px solid rgba(47, 243, 208, .42);
  background: rgba(47, 243, 208, .12);
}

.page-news .news-ver-tag--past {
  color: var(--arena-amber);
  border: 1px solid rgba(255, 196, 107, .32);
  background: rgba(255, 196, 107, .1);
}

.page-news .news-version-hint {
  margin: 16px 0 0;
  max-width: 72ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--arena-muted);
}

.page-news .news-version-hint a {
  color: var(--arena-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 208, .45);
}

.page-news .news-version-hint a:hover {
  color: var(--arena-cyan-soft);
}

/* ---------- 专栏 ---------- */
.page-news .news-columns {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .news-column {
  display: grid;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--arena-line);
  border-radius: var(--arena-radius-organic);
  background: linear-gradient(158deg, rgba(12, 44, 36, .96) 0%, rgba(22, 33, 46, .86) 100%);
  transition: border-color 300ms var(--arena-ease), transform 300ms var(--arena-ease);
}

.page-news .news-column:hover {
  border-color: rgba(47, 243, 208, .5);
  transform: translateY(-3px);
}

.page-news .news-column-code {
  font-family: var(--arena-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--arena-cyan);
}

.page-news .news-column-name {
  margin: 0;
  font-size: clamp(18px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.02em;
  color: var(--arena-text);
}

.page-news .news-column-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--arena-muted);
}

.page-news .news-column-meta {
  margin: 4px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--arena-line);
  font-family: var(--arena-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--arena-quiet);
  color: var(--arena-muted);
}

/* ---------- 收束 ---------- */
.page-news .news-outro {
  padding-bottom: clamp(64px, 11vw, 132px);
}

.page-news .news-outro-inner {
  display: grid;
  gap: 14px;
  justify-items: start;
  max-width: 62ch;
  padding: clamp(26px, 5vw, 48px);
  border: 1px solid var(--arena-line);
  border-radius: var(--arena-radius-lg);
  background:
    linear-gradient(122deg, rgba(255, 90, 43, .1) 0%, rgba(6, 26, 21, 0) 42%),
    var(--arena-panel);
}

.page-news .news-outro-inner .arena-lede {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--arena-muted);
}

.page-news .news-outro-actions {
  margin-top: 6px;
}

/* ---------- 移动端优先的断点 ---------- */
@media (min-width: 640px) {
  .page-news .news-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-news .news-item {
    grid-template-columns: 132px minmax(0, 1fr);
    column-gap: 28px;
    align-items: start;
  }

  .page-news .news-item-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding-top: 2px;
  }

  .page-news .news-item-main {
    gap: 8px;
  }
}

@media (min-width: 880px) {
  .page-news .news-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-news .news-split--wide {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }

  .page-news .news-split-media img {
    aspect-ratio: 4 / 3;
    height: 100%;
  }

  .page-news .news-split-media--wide img {
    aspect-ratio: 2 / 1;
  }
}

@media (min-width: 900px) {
  .page-news .news-top-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(32px, 5vw, 72px);
  }

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

  .page-news .news-hero-body {
    justify-content: flex-end;
  }

  .page-news .news-hero .arena-crumbs {
    position: absolute;
    top: clamp(24px, 4vw, 40px);
    left: var(--arena-gutter);
  }
}

@media (min-width: 1000px) {
  .page-news .news-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-tab,
  .page-news .news-column,
  .page-news .news-item-code {
    transition: none;
  }

  .page-news .news-tab:hover,
  .page-news .news-column:hover {
    transform: none;
  }
}