.page-news {
  --news-gap: clamp(1.5rem, 3vw, 2.75rem);
  --news-rule-gap: clamp(2.25rem, 5vw, 3.25rem);
  background:
    radial-gradient(70% 40% at 86% -6%, rgba(139, 92, 246, 0.22), transparent 62%),
    radial-gradient(58% 34% at 6% 1%, rgba(34, 245, 224, 0.10), transparent 58%),
    var(--ink-900);
  color: var(--ice);
  font-family: var(--font-body);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.page-news__crumb {
  padding-top: 1.15rem;
}

/* ── 外层布局：移动单列，桌面左侧目录 + 右侧连续文章流 ── */
.page-news .news-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  padding-top: 1.1rem;
}

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

/* ── 目录索引 ── */
.page-news .news-index {
  border-top: 1px solid var(--line-soft);
  padding-top: 0.75rem;
  min-width: 0;
}

.page-news .news-index__title {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
  margin: 0 0 0.6rem;
}

.page-news .news-index__list {
  display: flex;
  gap: 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0 0 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-news .news-index__list::-webkit-scrollbar {
  display: none;
}

.page-news .news-index__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
  font-size: 0.82rem;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 0.36rem 0.8rem;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-news .news-index__link:hover,
.page-news .news-index__link:focus-visible {
  color: var(--cyan);
  border-color: var(--line);
  background: rgba(34, 245, 224, 0.08);
}

.page-news .news-index__num {
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-news .news-index__pulse {
  display: none;
}

/* ── 首屏引言 ── */
.page-news .news-intro {
  position: relative;
  padding-top: 0.25rem;
}

.page-news .news-intro__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.95rem, 6.6vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 0.85rem 0 0;
  background: linear-gradient(102deg, var(--ice) 26%, var(--cyan) 76%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-news .news-intro__lead {
  max-width: 58ch;
  margin: 1rem 0 0;
  color: var(--mist);
  font-size: clamp(0.94rem, 2.6vw, 1.05rem);
  line-height: 1.78;
}

.page-news .news-flash {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
  margin: 1.5rem 0 0;
  padding: 0.85rem 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .news-flash__key {
  display: block;
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .news-flash__val {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-news .news-flash__val--live {
  color: var(--green);
}

/* ── 公告头条 ── */
.page-news .news-lead {
  position: relative;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: linear-gradient(158deg, rgba(18, 52, 74, 0.95), rgba(11, 42, 68, 0.78));
  box-shadow: 0 34px 80px -48px rgba(0, 0, 0, 0.95);
}

.page-news .news-lead::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--coral) 52%, transparent 92%);
  z-index: 2;
}

.page-news .news-lead__figure {
  position: relative;
  margin: 0;
}

.page-news .news-lead__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .news-lead__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 26, 43, 0.10) 0%, rgba(6, 26, 43, 0.72) 74%, var(--ink-800) 100%);
}

.page-news .news-lead__body {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: clamp(1.15rem, 3.6vw, 2rem);
}

.page-news .news-lead__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-news .news-lead__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.6vw, 2rem);
  line-height: 1.18;
  color: var(--ice);
}

.page-news .news-lead__text {
  margin: 0;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.78;
  max-width: 46ch;
}

.page-news .news-lead__meta {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
  opacity: 0.86;
}

.page-news .news-lead__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.35rem;
}

/* ── 区块通用 ── */
.page-news .news-block {
  position: relative;
  margin-top: var(--news-rule-gap);
  padding-top: clamp(1.3rem, 3vw, 1.85rem);
}

.page-news .news-block::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, var(--line) 0%, var(--line-soft) 42%, transparent 94%);
  transform: skewY(-0.6deg);
  transform-origin: left center;
}

.page-news .news-block__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.page-news .news-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 4vw, 1.7rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--ice);
  padding-left: 0.7rem;
  border-left: 3px solid var(--coral);
}

.page-news .news-block__note {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

/* ── 本周更新横向轨道 ── */
.page-news .update-rail {
  display: flex;
  gap: 0.85rem;
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0 0 0.9rem;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-news .update-rail:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-news .update-card {
  flex: 0 0 min(78vw, 286px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 1.05rem 1.1rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(18, 52, 74, 0.55);
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

.page-news .update-card:hover {
  border-color: var(--line);
  background: rgba(18, 52, 74, 0.88);
  transform: translateY(-2px);
}

.page-news .update-card__time {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .update-card__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ice);
}

.page-news .update-card__text {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .update-card .tag {
  align-self: flex-start;
  margin-top: auto;
}

/* ── 项目分类筛选 ── */
.page-news .proj-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.1rem 0 1.5rem;
}

.page-news .proj-filter__item {
  font-size: 0.8rem;
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-news .proj-filter__item:hover,
.page-news .proj-filter__item:focus-visible {
  color: var(--cyan);
  border-color: var(--line);
}

.page-news .proj-filter__item.is-active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}

/* ── 资讯流 ── */
.page-news .proj-feed {
  display: grid;
  gap: clamp(1rem, 3vw, 1.6rem);
}

.page-news .feed-item {
  display: grid;
  gap: 0.95rem;
  padding-bottom: clamp(1rem, 3vw, 1.5rem);
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: 90px;
}

.page-news .feed-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .feed-item__figure {
  position: relative;
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-800);
}

.page-news .feed-item__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transition: transform 0.55s ease;
}

.page-news .feed-item__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(178deg, rgba(34, 245, 224, 0.10) 0%, transparent 46%, rgba(6, 26, 43, 0.55) 100%);
  pointer-events: none;
}

.page-news .feed-item:hover .feed-item__figure img {
  transform: scale(1.035);
}

.page-news .feed-item__meta {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .feed-item__cat {
  color: var(--cyan);
}

.page-news .feed-item__title {
  margin: 0.5rem 0 0;
  font-size: clamp(1.02rem, 3vw, 1.2rem);
  font-weight: 700;
  line-height: 1.42;
  color: var(--ice);
}

.page-news .feed-item__text {
  margin: 0.55rem 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--mist);
  max-width: 62ch;
}

.page-news .feed-item__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

.page-news .feed-item--text {
  border-left: 2px solid var(--line-soft);
  padding-left: 1rem;
  transition: border-color 0.25s ease;
}

.page-news .feed-item--text:hover {
  border-left-color: var(--cyan);
}

/* ── 排期表 ── */
.page-news .schedule__lead {
  margin: 1rem 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--mist);
  max-width: 64ch;
}

.page-news .schedule__scroll {
  margin-top: 1.1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(11, 42, 68, 0.55);
}

.page-news .schedule-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.87rem;
}

.page-news .schedule-table caption {
  padding: 0.85rem 1rem 0.25rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .schedule-table th,
.page-news .schedule-table td {
  padding: 0.78rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .schedule-table th {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--mist);
}

.page-news .schedule-table td {
  color: var(--ice);
}

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

.page-news .schedule-table tbody tr:hover {
  background: rgba(34, 245, 224, 0.06);
}

.page-news .schedule-table .mono {
  color: var(--cyan);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

.page-news .schedule__foot {
  margin: 0.95rem 0 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ── 版本与帮助折叠卡 ── */
.page-news .release-list {
  display: grid;
  gap: 0.7rem;
  margin-top: 1.1rem;
}

.page-news .release-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(18, 52, 74, 0.45);
  overflow: hidden;
  transition: border-color 0.22s ease, background 0.22s ease;
}

.page-news .release-card[open] {
  border-color: var(--line);
  background: rgba(18, 52, 74, 0.82);
}

.page-news .release-card__summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.9rem 1rem;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

.page-news .release-card__summary::-webkit-details-marker {
  display: none;
}

.page-news .release-card__summary:hover .release-card__name {
  color: var(--cyan);
}

.page-news .release-card__ver {
  flex: none;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink-900);
  background: var(--amber);
  border-radius: 4px;
  padding: 0.14rem 0.42rem;
}

.page-news .release-card__name {
  font-size: 0.93rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ice);
  transition: color 0.2s ease;
}

.page-news .release-card__body {
  padding: 0 1rem 1rem;
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .release-card__body p {
  margin: 0;
}

/* ── 订阅与联络 ── */
.page-news .reach {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.1rem;
  padding: clamp(1.15rem, 3.5vw, 1.9rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    linear-gradient(124deg, rgba(34, 245, 224, 0.10), rgba(139, 92, 246, 0.15) 58%, rgba(255, 107, 74, 0.11));
}

.page-news .reach__text {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.82;
  color: var(--ice);
  max-width: 56ch;
}

.page-news .reach__text strong {
  color: var(--cyan);
  font-weight: 700;
}

.page-news .reach__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.page-news .news-backtop {
  margin: 1.75rem 0 0;
}

.page-news .news-backtop a {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-soft);
  padding-bottom: 3px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

/* ── 响应式 ── */
@media (min-width: 768px) {
  .page-news .news-flash {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .feed-item--media {
    grid-template-columns: minmax(0, 44%) minmax(0, 1fr);
    align-items: center;
    gap: 1.4rem;
  }

  .page-news .feed-item--media.feed-item--flip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 44%);
  }

  .page-news .feed-item--media.feed-item--flip .feed-item__figure {
    order: 2;
  }

  .page-news .reach {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-news .news-shell {
    grid-template-columns: 198px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.6rem);
    align-items: start;
    padding-top: 1.6rem;
  }

  .page-news .news-index {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    border-top: 0;
    border-left: 1px solid var(--line-soft);
    padding-top: 0;
    padding-left: 1.1rem;
  }

  .page-news .news-index__list {
    flex-direction: column;
    gap: 0.1rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-index__link {
    white-space: normal;
    border: 0;
    border-radius: 0;
    padding: 0.42rem 0;
    font-size: 0.85rem;
  }

  .page-news .news-index__link:hover,
  .page-news .news-index__link:focus-visible {
    background: transparent;
    box-shadow: inset 2px 0 0 var(--cyan);
    padding-left: 0.55rem;
  }

  .page-news .news-index__pulse {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1.5rem 0 0;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--mist);
  }

  .page-news .news-index__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 4px rgba(61, 220, 151, 0.16);
  }

  .page-news .news-lead {
    display: grid;
    grid-template-columns: 1.35fr minmax(0, 1fr);
    align-items: stretch;
  }

  .page-news .news-lead__figure {
    height: 100%;
  }

  .page-news .news-lead__figure img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 330px;
  }

  .page-news .news-lead__figure::after {
    background: linear-gradient(92deg, rgba(6, 26, 43, 0.12) 0%, rgba(11, 42, 68, 0.58) 78%, rgba(11, 42, 68, 0.96) 100%);
  }

  .page-news .news-lead__body {
    justify-content: center;
    padding: clamp(1.6rem, 2.6vw, 2.3rem);
  }

  .page-news .update-card {
    flex-basis: 300px;
  }
}

@media (min-width: 1200px) {
  .page-news .news-intro__lead {
    font-size: 1.06rem;
  }
}