.page-news {
  --news-gap: clamp(1.25rem, 2.6vw, 2.1rem);
  --news-media-gap: clamp(1.25rem, 2.2vw, 2rem);
  --news-card-bg: linear-gradient(180deg, rgba(18, 61, 44, .62), rgba(13, 43, 32, .3));
  --news-card-hover: rgba(53, 242, 194, .5);
}

.page-news .breadcrumb {
  margin: 1.25rem 0 .9rem;
}

/* ---------- 首屏框景 ---------- */
.page-news .news-masthead {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-news .news-frame {
  position: relative;
  overflow: hidden;
  padding: clamp(1.75rem, 4vw, 3.25rem);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 145% at 6% 0%, rgba(53, 242, 194, .17), transparent 55%),
    radial-gradient(95% 125% at 94% 102%, rgba(255, 90, 54, .16), transparent 60%),
    linear-gradient(158deg, var(--stand) 0%, var(--night) 72%);
}

.page-news .news-frame::after {
  content: "";
  position: absolute;
  inset: auto -12% -48% 38%;
  height: 62%;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(53, 242, 194, .16), transparent 72%);
  pointer-events: none;
}

.page-news .news-frame h1 {
  position: relative;
  z-index: 1;
  margin: .45rem 0 .95rem;
  max-width: 20ch;
  font-family: var(--font-head);
  font-size: clamp(2.1rem, 6vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: .005em;
  color: var(--paper);
}

.page-news .news-frame .lede {
  position: relative;
  z-index: 1;
  max-width: 64ch;
  color: var(--grass);
}

.page-news .news-stats {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  margin-top: 1.9rem;
  padding-top: 1.35rem;
  border-top: 1px dashed var(--line);
}

.page-news .news-stats .stat-value {
  display: block;
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  color: var(--neon);
  letter-spacing: .02em;
}

.page-news .news-stats .stat-label {
  display: block;
  margin-top: .3rem;
  font-size: .875rem;
  color: var(--grass);
}

.page-news .news-frame .tick-line {
  position: relative;
  z-index: 1;
  margin-top: 1.6rem;
}

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

.page-news .news-rail {
  padding: 1.15rem 1.2rem 1.3rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(18, 61, 44, .72), rgba(7, 26, 18, .55));
}

.page-news .news-rail .rail-title {
  margin-bottom: .8rem;
}

.page-news .news-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.page-news .news-rail .rail-note {
  margin: 1rem 0 1rem;
  font-size: .875rem;
  line-height: 1.6;
  color: var(--grass);
}

.page-news .news-rail .btn {
  width: 100%;
  justify-content: center;
}

.page-news .news-empty {
  margin: 0 0 var(--news-gap);
  padding: 1rem 1.2rem;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--line);
  color: var(--grass);
}

/* ---------- 章节通用 ---------- */
.page-news .news-section {
  margin-bottom: clamp(2.5rem, 6vw, 4.25rem);
}

.page-news .news-section:last-child {
  margin-bottom: 0;
}

.page-news .news-section .section-head {
  max-width: 70ch;
}

.page-news .news-section .section-head h2 {
  margin: .3rem 0 .7rem;
  font-family: var(--font-head);
  font-size: clamp(1.55rem, 3.4vw, 2.5rem);
  line-height: 1.12;
  color: var(--paper);
}

.page-news .news-section--alt {
  position: relative;
  padding: clamp(1.5rem, 3.4vw, 2.6rem);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-soft);
  background: linear-gradient(190deg, rgba(13, 43, 32, .8), rgba(7, 26, 18, .55));
}

.page-news .news-media {
  margin: var(--news-media-gap) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

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

.page-news .news-media figcaption {
  padding: .7rem .95rem .85rem;
  font-size: .8125rem;
  color: var(--grass);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 卡片流 ---------- */
.page-news .news-cards {
  display: grid;
  gap: var(--news-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-news .news-card {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.3rem 1.3rem 1.4rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: var(--news-card-bg);
  transition: border-color .25s ease, box-shadow .25s ease;
}

.page-news .news-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 20px 42px -30px var(--news-card-hover);
}

.page-news .news-card .card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin: 0;
  font-size: .75rem;
  color: var(--grass);
}

.page-news .news-card .card-title {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.35;
  color: var(--paper);
}

.page-news .news-card .card-body {
  margin: 0;
  color: var(--grass);
}

.page-news .news-accordion {
  margin-top: auto;
  padding-top: .5rem;
}

.page-news .news-accordion .accordion-trigger {
  font-size: .8125rem;
  color: var(--neon-cool);
}

/* ---------- 版本时间线 ---------- */
.page-news .news-timeline {
  position: relative;
  margin: 0;
  margin-top: var(--news-media-gap);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.15rem;
}

.page-news .news-timeline::before {
  content: "";
  position: absolute;
  left: .5rem;
  top: .6rem;
  bottom: .6rem;
  width: 2px;
  background: linear-gradient(180deg, var(--line-strong), var(--line-soft));
}

.page-news .news-timeline .timeline-item {
  position: relative;
  padding-left: 2rem;
}

.page-news .news-timeline .timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: .45rem;
  width: .8rem;
  height: .8rem;
  border-radius: 50%;
  background: var(--night);
  border: 2px solid var(--grass);
  transition: background .35s ease, border-color .35s ease, box-shadow .35s ease;
}

.page-news .news-timeline .timeline-item[data-lit]::before {
  background: var(--neon);
  border-color: var(--neon);
  box-shadow: 0 0 0 6px rgba(53, 242, 194, .13);
}

.page-news .news-timeline .timeline-time {
  margin: 0 0 .2rem;
  font-size: .95rem;
  color: var(--neon);
  letter-spacing: .08em;
}

.page-news .news-timeline h3 {
  margin: 0 0 .3rem;
  font-size: 1.0625rem;
  color: var(--paper);
}

.page-news .news-timeline p {
  margin: 0;
  color: var(--grass);
  font-size: .9375rem;
}

/* ---------- 资料库区块 ---------- */
.page-news .news-library {
  display: grid;
  gap: var(--news-media-gap);
  align-items: start;
  grid-template-columns: minmax(0, 1fr);
}

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

.page-news .news-library-side {
  display: grid;
  gap: 1rem;
  justify-items: start;
}

.page-news .news-table {
  width: 100%;
}

.page-news .news-table .num {
  text-align: right;
  color: var(--score);
}

.page-news .news-note {
  margin: 0;
  color: var(--grass);
  font-size: .9375rem;
}

/* ---------- 同步步骤 ---------- */
.page-news .news-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr);
  margin-top: var(--news-media-gap);
}

.page-news .news-steps li {
  padding: 1.4rem 1.3rem 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--line);
  background: linear-gradient(180deg, rgba(18, 61, 44, .55), rgba(7, 26, 18, .32));
}

.page-news .news-step-num {
  display: block;
  font-size: 1.5rem;
  letter-spacing: .08em;
  color: var(--score);
}

.page-news .news-steps h3 {
  margin: .45rem 0 .35rem;
  font-size: 1.0625rem;
  color: var(--paper);
}

.page-news .news-steps p {
  margin: 0;
  color: var(--grass);
  font-size: .9375rem;
}

/* ---------- 行动区 ---------- */
.page-news .news-actions {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.page-news .news-callout {
  margin-top: var(--news-media-gap);
  padding: 1.15rem 1.25rem;
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--signal);
  background: linear-gradient(120deg, rgba(255, 138, 61, .1), rgba(7, 26, 18, .25));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .9rem;
  justify-content: space-between;
}

.page-news .news-callout p {
  margin: 0;
  flex: 1 1 20rem;
  color: var(--paper);
  font-size: .9375rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .news-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-cards--stagger > :nth-child(even) {
    margin-top: 1.6rem;
  }

  .page-news .news-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: minmax(200px, 15.5rem) minmax(0, 1fr);
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
  }

  .page-news .news-chips {
    flex-direction: column;
    align-items: stretch;
  }

  .page-news .news-chips .chip {
    width: 100%;
    justify-content: flex-start;
    text-align: left;
  }

  .page-news .news-library {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }
}

@media (min-width: 1120px) {
  .page-news .news-cards--stagger {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .news-cards--stagger > :nth-child(3n+2) {
    margin-top: 1.9rem;
  }

  .page-news .news-cards--stagger > :nth-child(3n) {
    margin-top: 3.4rem;
  }
}

@media (max-width: 560px) {
  .page-news .news-frame h1 {
    max-width: 100%;
  }

  .page-news .news-callout {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .news-timeline .timeline-item::before {
    transition: none;
  }

  .page-news .news-cards--stagger > * {
    margin-top: 0 !important;
  }
}