.page-news {
  --news-ver: #35F0CF;
  --news-data: #FFB347;
  --news-col: #C97BA8;
  --news-tut: #7FB6E0;
}

/* ========== 首屏 ========== */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 60px) 0 clamp(36px, 5vw, 72px);
  background:
    radial-gradient(120% 110% at 100% 0%, rgba(53, 240, 207, 0.1), transparent 58%),
    linear-gradient(180deg, var(--teal-900), var(--ink-900) 82%);
  border-bottom: 1px solid var(--grid);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(35, 68, 92, 0.38) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(35, 68, 92, 0.38) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.55;
  pointer-events: none;
}

.page-news .news-hero-inner {
  position: relative;
  z-index: 1;
}

.page-news .news-hero-title {
  margin: 14px 0 0;
  font-size: clamp(30px, 6vw, 68px);
  line-height: 1.08;
  letter-spacing: 0.03em;
  color: var(--ice);
}

.page-news .news-hero-title-accent {
  color: var(--cyan);
}

.page-news .news-hero-lede {
  margin-top: 20px;
  max-width: 62ch;
  color: var(--ice);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
}

.page-news .news-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(26px, 4vw, 42px);
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-news .news-stat {
  background: var(--ink-900);
  padding: 16px 18px;
  min-width: 0;
}

.page-news .news-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.page-news .news-stat-label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* ========== 通用区块 ========== */
.page-news .news-index {
  padding: clamp(36px, 5.5vw, 80px) 0;
}

.page-news .news-band {
  padding: clamp(36px, 5.5vw, 84px) 0;
  border-top: 1px solid var(--grid);
}

.page-news .news-band--teal {
  background: linear-gradient(180deg, rgba(14, 59, 74, 0.72), rgba(11, 31, 56, 0.94));
}

.page-news .news-band--wine {
  background: linear-gradient(180deg, rgba(90, 31, 61, 0.6), rgba(6, 19, 36, 0.96));
}

.page-news .news-band--indigo {
  background: linear-gradient(180deg, rgba(38, 48, 94, 0.72), rgba(6, 19, 36, 0.96));
}

.page-news .news-return-band {
  background: var(--ink-800);
}

.page-news .news-section-head {
  display: grid;
  gap: 10px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--grid);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-news .news-section-note {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
  max-width: 68ch;
}

.page-news .news-sub-title {
  margin: 28px 0 12px;
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  text-transform: uppercase;
  font-weight: 600;
}

.page-news .news-figure,
.page-news .news-figure-tall {
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  overflow: hidden;
}

.page-news .news-figure {
  aspect-ratio: 1200 / 520;
}

.page-news .news-figure-tall {
  aspect-ratio: 1000 / 500;
}

.page-news .news-figure-tall--tall {
  aspect-ratio: 1000 / 620;
}

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

/* ========== 索引：左侧栏 + 条目流 ========== */
.page-news .news-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  min-width: 0;
}

.page-news .news-grid > * {
  min-width: 0;
}

.page-news .news-rail {
  border-top: 1px solid var(--grid);
  padding-top: 16px;
}

.page-news .news-rail-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  text-transform: uppercase;
  font-weight: 600;
}

.page-news .news-rail-list,
.page-news .news-legend,
.page-news .news-phase-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.page-news .news-rail-list {
  display: grid;
  gap: 2px;
}

.page-news .news-rail-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  color: var(--ice);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  border-left: 2px solid transparent;
  background: transparent;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-news .news-rail-link:hover {
  background: rgba(53, 240, 207, 0.08);
  border-left-color: var(--cyan);
}

.page-news .news-rail-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-left-color: var(--cyan);
}

.page-news .news-rail-link[aria-current="true"] {
  border-left-color: var(--cyan);
  color: var(--cyan);
  background: rgba(53, 240, 207, 0.06);
}

.page-news .news-dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 0;
}

.page-news .news-dot--ver {
  background: var(--news-ver);
}

.page-news .news-dot--data {
  background: var(--news-data);
}

.page-news .news-dot--col {
  background: var(--news-col);
}

.page-news .news-dot--tut {
  background: var(--news-tut);
}

.page-news .news-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
  padding: 5px 0;
  border-bottom: 1px solid rgba(35, 68, 92, 0.7);
}

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

.page-news .news-phase-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-phase-list li {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ice);
  border: 1px solid var(--grid);
  padding: 5px 9px;
  background: rgba(6, 19, 36, 0.55);
}

/* ========== 条目流 ========== */
.page-news .news-stream {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-item {
  border-top: 1px solid var(--grid);
  padding: 18px 4px 20px;
  transition: background-color 200ms var(--ease);
}

.page-news .news-item:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-news .news-item:hover {
  background: rgba(53, 240, 207, 0.045);
}

.page-news .news-item:focus-within {
  background: rgba(53, 240, 207, 0.06);
}

.page-news .news-item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news .news-item-cat {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ice);
}

.page-news .news-item-time {
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-news .news-item-title {
  margin: 10px 0 7px;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.42;
  letter-spacing: 0.01em;
  color: var(--ice);
  font-weight: 600;
}

.page-news .news-item-summary {
  margin: 0;
  max-width: 70ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
}

/* ========== 版本说明 ========== */
.page-news .news-versions-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-news .news-timeline {
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-news .news-tl-item {
  background: rgba(6, 19, 36, 0.68);
  padding: 16px 18px;
}

.page-news .news-tl-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 6px;
}

.page-news .news-tl-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ice);
}

.page-news .news-iter {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-iter-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--grid);
  align-items: start;
}

.page-news .news-iter-item:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-news .news-iter-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 2px;
}

.page-news .news-iter-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ice);
}

.page-news .news-iter-text strong {
  color: var(--amber);
  font-weight: 600;
}

/* ========== 数据同步表格 ========== */
.page-news .news-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--grid);
  background: rgba(6, 19, 36, 0.55);
}

.page-news .news-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.page-news .news-table-caption {
  caption-side: top;
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-news .news-table th,
.page-news .news-table td {
  padding: 13px 16px;
  text-align: left;
  font-size: 14px;
  line-height: 1.6;
  border-top: 1px solid var(--grid);
  vertical-align: top;
}

.page-news .news-table thead th {
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 600;
  white-space: nowrap;
}

.page-news .news-table tbody th {
  color: var(--ice);
  font-weight: 600;
  white-space: nowrap;
}

.page-news .news-table tbody td {
  color: var(--mist);
}

.page-news .news-sync-note {
  margin: 20px 0 0;
  max-width: 72ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ice);
  border-left: 2px solid var(--cyan);
  padding-left: 16px;
}

/* ========== 专栏与教程 ========== */
.page-news .news-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-news .news-col-block {
  min-width: 0;
}

.page-news .news-col-block .news-sub-title {
  margin-top: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--grid);
}

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

.page-news .news-list li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(35, 68, 92, 0.75);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-news .news-list strong {
  color: var(--ice);
  font-weight: 600;
}

.page-news .news-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}

/* ========== 按栏目回访 ========== */
.page-news .news-return {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-news .news-return-item {
  display: block;
  min-width: 0;
  padding: 20px 18px;
  background: var(--ink-900);
  text-decoration: none;
  color: var(--ice);
  transition: background-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-news .news-return-item:hover {
  background: rgba(53, 240, 207, 0.1);
}

.page-news .news-return-item:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .news-return-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-news .news-return-title {
  display: block;
  margin: 8px 0 6px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-news .news-return-desc {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .news-phase-note {
  margin: 22px 0 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ========== 响应式 ========== */
@media (min-width: 720px) {
  .page-news .news-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-section-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 44ch);
    align-items: end;
    gap: 16px 32px;
  }

  .page-news .news-tl-item {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    padding: 18px 20px;
  }

  .page-news .news-tl-tag {
    margin-bottom: 0;
    padding-top: 2px;
  }

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

@media (min-width: 940px) {
  .page-news .news-grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    align-self: start;
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
  }

  .page-news .news-versions-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-news .news-figure-tall {
    margin-bottom: 0;
  }

  .page-news .news-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .news-inline-links {
    margin-top: 30px;
  }
}

@media (min-width: 1180px) {
  .page-news .news-return {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-item {
    padding: 22px 6px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-rail-link,
  .page-news .news-return-item {
    transition: none;
  }
}