.page-news {
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(220, 232, 242, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 232, 242, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--silver);
  overflow-x: hidden;
}

.page-news .slab {
  position: relative;
}

.page-news .img-frame {
  aspect-ratio: 16 / 9;
}

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

/* ---------- 01 首屏 ---------- */
.page-news .news-masthead {
  padding-top: 30px;
  padding-bottom: 52px;
}

.page-news .news-masthead .breadcrumb {
  margin-bottom: 36px;
}

.page-news .news-masthead__grid {
  display: grid;
  gap: 30px;
}

.page-news .news-masthead__main .display-title {
  margin: 14px 0 18px;
}

.page-news .news-masthead__main .lead {
  max-width: 38em;
  color: var(--silver);
  opacity: .82;
  margin: 0;
}

.page-news .news-masthead__side {
  border: 2px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
  padding: 20px 18px 18px;
}

.page-news .news-masthead__side .eyebrow {
  margin: 0 0 14px;
}

.page-news .news-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: 2px solid var(--line);
  background: var(--ink-3);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: border-color .12s var(--ease), background .12s var(--ease), color .12s var(--ease);
}

.page-news .cat-chip::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  background: var(--rock);
}

.page-news .cat-chip--version::before { background: var(--summer); }
.page-news .cat-chip--map::before { background: var(--moss); }
.page-news .cat-chip--data::before { background: var(--spring); }
.page-news .cat-chip--pass::before { background: var(--autumn); }

.page-news .cat-chip:hover {
  border-color: var(--summer);
  color: #FFFFFF;
}

.page-news .cat-chip:focus-visible {
  outline: 2px solid var(--spring);
  outline-offset: 2px;
}

.page-news .news-masthead__hint {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--rock);
}

/* ---------- 通用标题 ---------- */
.page-news .news-h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.8vw, 44px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: #FFFFFF;
}

.page-news .news-lead {
  margin: 0 0 34px;
  max-width: 44em;
  color: var(--rock);
}

/* ---------- 02 本季重点 ---------- */
.page-news .news-pinned {
  padding-top: 52px;
  padding-bottom: 56px;
}

.page-news .news-pinned__layout {
  display: grid;
  gap: 30px;
}

.page-news .pin-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--line);
}

.page-news .pin-item {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 16px 20px 14px;
  border-bottom: 2px solid var(--line);
  overflow: hidden;
}

.page-news .pin-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(200, 240, 75, .13) 0%, rgba(200, 240, 75, 0) 62%);
  clip-path: polygon(0 0, 100% 0, calc(100% - 30px) 100%, 0 100%);
  pointer-events: none;
}

.page-news .pin-item__num {
  position: relative;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--spring);
}

.page-news .pin-item__body {
  position: relative;
}

.page-news .pin-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.34;
  letter-spacing: -.01em;
  color: #FFFFFF;
}

.page-news .pin-item__note {
  margin: 0 0 12px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--rock);
}

.page-news .pin-item__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
}

.page-news .pin-item__round {
  display: inline-block;
  padding: 4px 9px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--silver);
}

.page-news .news-pinned__figure {
  margin: 0;
}

/* ---------- 03 阶段动态 ---------- */
.page-news .news-feed {
  padding-top: 54px;
  padding-bottom: 56px;
}

.page-news .news-feed__figure {
  margin: 0 0 46px;
}

.page-news .news-feed__groups {
  border-bottom: 2px solid var(--line);
}

.page-news .season-group {
  position: relative;
  border-top: 2px solid var(--line);
  background: transparent;
}

.page-news .season-group::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 5px;
  height: 22px;
  background: var(--rock);
  z-index: 1;
}

.page-news .season-group--spring::before { background: var(--spring); }
.page-news .season-group--summer::before { background: var(--summer); }
.page-news .season-group--autumn::before { background: var(--autumn); }
.page-news .season-group--winter::before { background: var(--winter); }

.page-news .season-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 18px 0 16px 20px;
  cursor: pointer;
  list-style: none;
}

.page-news .season-group__head::-webkit-details-marker {
  display: none;
}

.page-news .season-group__head:focus-visible {
  outline: 2px solid var(--summer);
  outline-offset: 2px;
}

.page-news .season-group__head::after {
  content: "+";
  margin-left: auto;
  padding-right: 4px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--rock);
  transition: color .18s var(--ease);
}

.page-news .season-group[open] .season-group__head::after {
  content: "−";
  color: var(--silver);
}

.page-news .season-group__dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  background: var(--rock);
}

.page-news .season-group--spring .season-group__dot { background: var(--spring); }
.page-news .season-group--summer .season-group__dot { background: var(--summer); }
.page-news .season-group--autumn .season-group__dot { background: var(--autumn); }
.page-news .season-group--winter .season-group__dot { background: var(--winter); }

.page-news .season-group__name {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -.01em;
  color: #FFFFFF;
}

.page-news .season-group__meta {
  padding: 3px 8px;
  border: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--rock);
}

.page-news .feed-list {
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
}

.page-news .feed-row {
  position: relative;
  display: block;
  padding: 16px 0 16px 22px;
  border-top: 1px solid var(--line-soft);
}

.page-news .feed-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 3px;
  height: 14px;
  background: var(--rock);
  transition: height .18s var(--ease), background .18s var(--ease);
}

.page-news .feed-row:hover::before {
  height: 30px;
  background: var(--summer);
}

.page-news .feed-row__round {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--rock);
}

.page-news .feed-row__main {
  display: block;
}

.page-news .feed-row__title {
  display: block;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--silver);
}

.page-news .feed-row__note {
  display: block;
  margin-top: 5px;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--rock);
}

.page-news .feed-row__tags {
  display: block;
  margin-top: 10px;
}

/* ---------- 04 专题系列 ---------- */
.page-news .news-series {
  padding-top: 54px;
  padding-bottom: 56px;
}

.page-news .news-series__figure {
  margin: 0 0 46px;
}

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

.page-news .series-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 22px 24px;
  border: 2px solid var(--line);
  border-top-width: 5px;
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
}

.page-news .series-card--dict { border-top-color: var(--summer); }
.page-news .series-card--map { border-top-color: var(--moss); }
.page-news .series-card--version { border-top-color: var(--autumn); }

.page-news .series-card__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.page-news .series-card__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: #FFFFFF;
}

.page-news .series-card__text {
  flex: 1 1 auto;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

.page-news .series-card__link {
  align-self: flex-start;
  padding-bottom: 2px;
  border-bottom: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--summer);
  text-decoration: none;
  transition: color .12s var(--ease);
}

.page-news .series-card__link:hover {
  color: var(--spring);
}

/* ---------- 05 回访节点 ---------- */
.page-news .news-back {
  padding-top: 54px;
  padding-bottom: 64px;
}

.page-news .news-back__grid {
  display: grid;
  gap: 18px;
}

.page-news .back-item {
  padding: 22px 18px 20px;
  border: 2px solid var(--line);
  background: var(--ink-2);
}

.page-news .back-item--spring { border-left: 6px solid var(--spring); }
.page-news .back-item--summer { border-left: 6px solid var(--summer); }
.page-news .back-item--autumn { border-left: 6px solid var(--autumn); }
.page-news .back-item--winter { border-left: 6px solid var(--winter); }

.page-news .back-item__when {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
}

.page-news .back-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.35;
  color: #FFFFFF;
}

.page-news .back-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--rock);
}

.page-news .news-back__figure {
  margin: 40px 0 0;
}

.page-news .news-back__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
}

.page-news .news-back__note {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
  opacity: .82;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-back__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 860px) {
  .page-news .feed-row {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr) 128px;
    gap: 22px;
    align-items: start;
  }

  .page-news .feed-row__round {
    margin-bottom: 0;
    padding-top: 3px;
  }

  .page-news .feed-row__tags {
    margin-top: 0;
    justify-self: end;
    text-align: right;
  }
}

@media (min-width: 960px) {
  .page-news .news-series__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
}

@media (min-width: 980px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 52px;
    align-items: end;
  }

  .page-news .news-pinned__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-news .news-back__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .page-news .season-group__head {
    padding-left: 16px;
    gap: 9px;
  }

  .page-news .season-group__name {
    font-size: 16px;
  }

  .page-news .feed-row {
    padding-left: 16px;
  }

  .page-news .pin-item {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 10px;
    padding: 18px 12px 18px 12px;
  }

  .page-news .news-back__actions .btn {
    width: 100%;
    text-align: center;
  }
}
<<<END>>>