.page-news {
  --news-pad: 22px;
  --news-gap: 20px;
  display: block;
  position: relative;
  padding: calc(var(--mobile-header) + 34px) 0 72px;
  background:
    radial-gradient(120% 70% at 100% 0%, rgba(57, 230, 208, 0.07), transparent 58%),
    radial-gradient(90% 55% at 0% 100%, rgba(232, 180, 74, 0.06), transparent 60%),
    var(--indigo);
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.8;
  overflow-x: clip;
}

.page-news .breadcrumbs {
  margin-bottom: 26px;
}

/* ---------- 封面区 ---------- */

.page-news .news-cover {
  position: relative;
  padding: 26px 0 38px 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 52px;
}

.page-news .news-cover::before {
  content: "";
  position: absolute;
  inset: 10px auto 10px 0;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--gold), var(--cyan) 58%, rgba(57, 230, 208, 0));
}

.page-news .news-cover::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 68px;
  height: 7px;
  background: var(--coral);
  border-radius: 0 4px 4px 0;
  opacity: 0.85;
}

.page-news .news-cover h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--warm-white);
  margin: 14px 0 20px;
  max-width: 20ch;
}

.page-news .news-cover__lead {
  max-width: 62ch;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-2);
}

.page-news .news-cover__status {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 章节通用 ---------- */

.page-news .news-board,
.page-news .news-versions,
.page-news .news-alerts,
.page-news .news-index,
.page-news .news-cadence,
.page-news .news-next {
  scroll-margin-top: calc(var(--mobile-header) + 24px);
  margin-bottom: 62px;
}

.page-news .panel-head {
  margin-bottom: 26px;
  max-width: 74ch;
}

.page-news .panel-head p {
  margin: 0;
  color: var(--text-2);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-news .panel-head .section-title {
  margin: 10px 0 12px;
}

.page-news .media-frame {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--midnight);
}

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

.page-news .media-frame__caption {
  display: block;
  padding: 10px 14px 12px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--text-2);
  background: rgba(8, 12, 24, 0.45);
}

/* ---------- 近期更新 ---------- */

.page-news .news-board__intro {
  margin: 0;
  color: var(--text-2);
  font-size: 15.5px;
}

.page-news .news-board__layout {
  display: grid;
  gap: 22px;
}

.page-news .news-feature {
  padding: var(--news-pad);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.22s ease, transform 0.22s ease;
}

.page-news .news-feature:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.page-news .news-feature__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-news .news-feature__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.4;
  color: var(--warm-white);
  font-weight: 700;
}

.page-news .news-feature__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-2);
}

.page-news .news-meta {
  font-size: var(--fs-mono);
  color: var(--fog);
  letter-spacing: 0.02em;
}

.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--rail-line);
  border-radius: var(--radius-md);
  background: rgba(20, 32, 74, 0.42);
  transition: border-color 0.22s ease, background-color 0.22s ease, transform 0.22s ease;
}

.page-news .news-item:hover,
.page-news .news-item:focus-within {
  border-color: rgba(57, 230, 208, 0.42);
  border-left-color: var(--cyan);
  background: rgba(20, 32, 74, 0.82);
  transform: translateY(-2px);
}

.page-news .news-item__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--fog);
  letter-spacing: 0.04em;
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--warm-white);
}

.page-news .news-item__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-2);
}

/* ---------- 版本迭代 ---------- */

.page-news .news-versions__grid {
  display: grid;
  gap: 28px;
}

.page-news .news-versions__media {
  align-self: start;
}

.page-news .news-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-news .news-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--gold) 58%, var(--coral));
}

.page-news .news-timeline .timeline-item {
  position: relative;
  padding: 0 0 26px;
}

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

.page-news .news-timeline .timeline-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--midnight);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(57, 230, 208, 0.08);
}

.page-news .news-timeline .timeline-item--warn::before {
  border-color: var(--coral);
  box-shadow: 0 0 0 4px rgba(255, 107, 94, 0.1);
}

.page-news .news-timeline .timeline-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--warm-white);
}

.page-news .news-timeline .timeline-meta {
  margin: 0 0 10px;
  font-size: var(--fs-mono);
  color: var(--gold);
  letter-spacing: 0.03em;
}

.page-news .news-timeline .timeline-item--warn .timeline-meta {
  color: var(--coral);
}

.page-news .news-timeline .timeline-item p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-2);
}

/* ---------- 访问提醒 ---------- */

.page-news .news-alerts__layout {
  display: grid;
  gap: 22px;
}

.page-news .news-alerts__grid {
  display: grid;
  gap: 14px;
}

.page-news .alert-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: var(--radius-md);
  background: rgba(20, 32, 74, 0.5);
  transition: background-color 0.22s ease, border-color 0.22s ease;
}

.page-news .alert-card:hover {
  background: rgba(20, 32, 74, 0.8);
}

.page-news .alert-card--coral {
  border-left-color: var(--coral);
}

.page-news .alert-card--gold {
  border-left-color: var(--gold);
}

.page-news .alert-card--cyan {
  border-left-color: var(--cyan);
}

.page-news .alert-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--warm-white);
}

.page-news .alert-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-2);
}

.page-news .news-alerts__media {
  align-self: start;
}

/* ---------- 分类索引 ---------- */

.page-news .news-index__layout {
  display: grid;
  gap: 26px;
}

.page-news .news-index__list {
  display: grid;
  gap: 10px;
}

.page-news .index-chip {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(11, 21, 51, 0.6);
  transition: border-color 0.22s ease, background-color 0.22s ease, transform 0.22s ease;
}

.page-news .index-chip:hover {
  border-color: rgba(232, 180, 74, 0.45);
  background: rgba(20, 32, 74, 0.78);
  transform: translateX(4px);
}

.page-news .index-chip__no {
  flex: 0 0 auto;
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.06em;
  padding-top: 2px;
}

.page-news .index-chip h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--warm-white);
}

.page-news .index-chip p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-news .news-index__media {
  align-self: start;
}

/* ---------- 更新节奏 ---------- */

.page-news .news-cadence .paper-panel {
  padding: 26px 22px 28px;
  border-radius: var(--radius-lg);
  color: var(--ink);
}

.page-news .news-cadence .paper-panel .section-title {
  color: var(--ink);
}

.page-news .news-cadence .paper-panel .eyebrow {
  color: #8f6614;
}

.page-news .news-cadence .panel-head p {
  color: #4a4234;
}

.page-news .news-cadence__grid {
  gap: 26px;
  margin-top: 6px;
}

.page-news .news-cadence__col h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(11, 21, 51, 0.14);
}

.page-news .news-cadence__col p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: #3c3527;
}

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

.page-news .news-cadence__list li {
  position: relative;
  padding-left: 14px;
  font-size: 15px;
  line-height: 1.85;
  color: #3c3527;
  border-left: 2px solid rgba(57, 230, 208, 0.55);
}

.page-news .news-cadence__list .mono {
  display: inline-block;
  margin-right: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: #0b1533;
  background: rgba(232, 180, 74, 0.35);
  padding: 1px 7px;
  border-radius: 4px;
}

.page-news .news-cadence__note {
  margin: 0;
  font-size: 13px;
  color: #5c5344;
  padding-top: 10px;
  border-top: 1px dashed rgba(11, 21, 51, 0.18);
}

/* ---------- 继续查看 ---------- */

.page-news .news-next {
  margin-bottom: 0;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.page-news .news-next .section-title {
  margin: 0 0 20px;
}

.page-news .news-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .news-next__links .btn {
  flex: 1 1 auto;
  text-align: center;
  min-width: 168px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-news {
    --news-pad: 26px;
    padding-top: calc(var(--mobile-header) + 52px);
  }

  .page-news .news-cover {
    padding-left: 30px;
    margin-bottom: 62px;
  }

  .page-news .news-cover__lead {
    font-size: 17px;
  }

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

  .page-news .news-next__links .btn {
    flex: 0 1 auto;
  }
}

@media (min-width: 960px) {
  .page-news {
    padding-bottom: 96px;
  }

  .page-news .news-board,
  .page-news .news-versions,
  .page-news .news-alerts,
  .page-news .news-index,
  .page-news .news-cadence {
    margin-bottom: 84px;
  }

  .page-news .news-board__layout {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }

  .page-news .news-versions__grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 42px;
    align-items: start;
  }

  .page-news .news-alerts__layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 34px;
    align-items: start;
  }

  .page-news .news-index__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .news-cadence .paper-panel {
    padding: 40px 42px 44px;
  }

  .page-news .news-cadence__grid {
    gap: 46px;
  }
}

@media (min-width: 1280px) {
  .page-news .news-cover h1 {
    font-size: 58px;
  }

  .page-news .news-cover__lead {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-feature,
  .page-news .news-item,
  .page-news .index-chip,
  .page-news .alert-card {
    transition: none;
  }

  .page-news .news-feature:hover,
  .page-news .news-item:hover,
  .page-news .news-item:focus-within,
  .page-news .index-chip:hover {
    transform: none;
  }
}