.page-news {
  --news-gap: clamp(28px, 5vw, 56px);
  --news-indent: clamp(30px, 4vw, 46px);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(40px, 7vw, 96px) 0 clamp(32px, 5vw, 64px);
  overflow: hidden;
}
.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(62vw, 780px);
  aspect-ratio: 1;
  background: linear-gradient(135deg, rgba(16, 27, 51, .95), rgba(10, 26, 33, 0) 68%);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 0 100%);
  pointer-events: none;
}
.page-news .news-hero-inner {
  position: relative;
  display: grid;
  gap: var(--news-gap);
  align-items: end;
}
.page-news .news-hero-copy .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}
.page-news .news-hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.6rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: 0 0 1rem;
  color: var(--paper);
}
.page-news .news-hero-copy .lede {
  max-width: 62ch;
  font-size: clamp(.95rem, 1.3vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(243, 239, 230, .78);
  margin: 0;
}
.page-news .news-hero-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(20px, 4vw, 40px);
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--mist);
}
.page-news .news-fact-num {
  color: var(--gold-light);
  font-size: 1.05rem;
  margin-right: 4px;
}
.page-news .news-hero-visual {
  margin: 0;
  position: relative;
  clip-path: polygon(9% 0, 100% 0, 100% 100%, 0 100%);
  border: 1px solid var(--line-cyan);
  border-left: none;
}
.page-news .news-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: saturate(.85) contrast(1.06);
}

/* ---------- 章节通用 ---------- */
.page-news .section {
  position: relative;
  padding: clamp(52px, 8vw, 112px) 0;
}
.page-news .section-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(16px, 3vw, 32px);
  margin-bottom: clamp(18px, 3vw, 30px);
}
.page-news .section-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(2.3rem, 5vw, 3.5rem);
  line-height: .9;
  color: transparent;
  -webkit-text-stroke: 1px var(--line-gold);
  letter-spacing: -.02em;
}
.page-news .section-head-body {
  padding-top: .25rem;
}
.page-news .section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  line-height: 1.32;
  margin: .3rem 0 0;
  color: var(--paper);
}
.page-news .section-kicker {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
  color: var(--cyan);
  margin: 0;
}
.page-news .news-text {
  max-width: 66ch;
  font-size: .97rem;
  line-height: 1.85;
  color: rgba(243, 239, 230, .74);
  margin: 0 0 clamp(24px, 3.5vw, 40px);
}

/* ---------- 01 时间轴 ---------- */
.page-news .news-log {
  background: var(--ink);
}
.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: clamp(14px, 2vw, 20px) 0;
  border-top: 1px solid var(--line-mute);
  border-bottom: 1px solid var(--line-mute);
  margin: 0 0 clamp(28px, 4vw, 48px);
}
.page-news .filter-btn {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .05em;
  padding: 8px 16px;
  background: transparent;
  color: var(--mist);
  border: 1px solid var(--line-mute);
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}
.page-news .filter-btn:hover {
  color: var(--paper);
  border-color: var(--line-cyan);
}
.page-news .filter-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-news .filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}
.page-news .filter-count {
  display: inline-block;
  margin-left: 6px;
  font-size: .6875rem;
  opacity: .75;
}

.page-news .news-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-news .news-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold-light) 0%, var(--line-cyan) 26%, var(--line-mute) 100%);
}
.page-news .news-item {
  position: relative;
  padding: 0 0 clamp(20px, 3vw, 30px) var(--news-indent);
}
.page-news .news-item + .news-item {
  border-top: 1px solid var(--line-mute);
  padding-top: clamp(20px, 3vw, 30px);
}
.page-news .timeline-node {
  position: absolute;
  left: 0;
  top: clamp(22px, 3.2vw, 32px);
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--mist);
  box-shadow: 0 0 0 4px var(--ink);
  z-index: 1;
}
.page-news .news-item:first-child .timeline-node {
  top: 4px;
}
.page-news .news-item[data-current] .timeline-node {
  background: var(--gold);
  border-color: var(--gold-light);
  animation: newsPulse 2.4s var(--ease) infinite;
}
@keyframes newsPulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--ink), 0 0 0 0 rgba(201, 162, 39, .5); }
  50% { box-shadow: 0 0 0 4px var(--ink), 0 0 0 12px rgba(201, 162, 39, 0); }
}
.page-news .news-item-date {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--mist);
  margin: 0 0 8px;
}
.page-news .news-item[data-current] .news-item-date {
  color: var(--gold-light);
}
.page-news .news-item-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 2px 14px;
  align-items: start;
}
.page-news .news-item-num {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .06em;
  color: var(--mist);
  padding-top: .3em;
}
.page-news .news-item[data-current] .news-item-num {
  color: var(--gold);
}
.page-news .news-item-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.46;
  margin: 0 0 .35rem;
  color: var(--paper);
}
.page-news .news-item-text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.82;
  color: rgba(243, 239, 230, .72);
  max-width: 62ch;
}
.page-news .news-item-row > .badge {
  white-space: nowrap;
  font-size: .75rem;
  padding: 3px 10px;
}

/* ---------- 02 标签说明 ---------- */
.page-news .news-tags {
  background: linear-gradient(180deg, var(--ink) 0%, var(--night) 55%, var(--ink) 100%);
}
.page-news .news-tags-grid {
  display: grid;
  gap: var(--news-gap);
}
.page-news .tag-cards {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}
.page-news .tag-card {
  border-left: 2px solid var(--line-cyan);
  padding: 2px 0 2px clamp(14px, 2vw, 20px);
}
.page-news .tag-card-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  margin: 0 0 .35rem;
  color: var(--gold-light);
}
.page-news .tag-card-text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, .74);
  max-width: 54ch;
}
.page-news .news-tags-visual {
  margin: 0;
  border: 1px solid var(--line-cyan);
}
.page-news .news-tags-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.8) contrast(1.05);
}
.page-news .news-tags-visual .media-caption {
  font-family: var(--font-mono);
  font-size: .75rem;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--mist);
  padding: 10px 14px 12px;
  border-top: 1px solid var(--line-mute);
}

/* ---------- 03 版本序列归档 ---------- */
.page-news .news-archive {
  background: var(--ink-deep);
  overflow: hidden;
}
.page-news .archive-visual {
  position: absolute;
  top: 0;
  right: 0;
  width: min(72%, 860px);
  opacity: .16;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(205deg, #000 0%, rgba(0, 0, 0, 0) 74%);
  mask-image: linear-gradient(205deg, #000 0%, rgba(0, 0, 0, 0) 74%);
}
.page-news .archive-visual img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(.55);
}
.page-news .news-archive-inner {
  position: relative;
  z-index: 1;
}
.page-news .archive-list {
  border-top: 1px solid var(--line-mute);
}
.page-news .archive-row {
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: clamp(11px, 1.5vw, 15px) 0;
  border-bottom: 1px solid var(--line-mute);
  transition: background-color .25s var(--ease);
}
.page-news .archive-row:hover {
  background: rgba(47, 214, 196, .05);
}
.page-news .archive-code {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .06em;
  color: var(--gold);
}
.page-news .archive-name {
  font-size: .95rem;
  line-height: 1.6;
  color: rgba(243, 239, 230, .86);
  transition: color .25s var(--ease);
}
.page-news .archive-row:hover .archive-name {
  color: var(--cyan);
}
.page-news .archive-count {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .05em;
  color: var(--mist);
}

/* ---------- 04 专题连载 ---------- */
.page-news .news-series {
  background: var(--ink);
}
.page-news .news-series-grid {
  display: grid;
  gap: var(--news-gap);
}
.page-news .series-visual {
  margin: 0;
  border: 1px solid var(--line-mute);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}
.page-news .series-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(.72) contrast(1.04);
}
.page-news .series-list {
  list-style: none;
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
}
.page-news .series-card {
  padding: clamp(14px, 2vw, 18px) clamp(16px, 2.2vw, 20px) clamp(16px, 2.2vw, 20px);
  background: linear-gradient(152deg, rgba(16, 27, 51, .88), rgba(30, 49, 56, .48));
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}
.page-news .series-card.is-done {
  border-left-color: var(--mist);
}
.page-news .series-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  margin: 0 0 .3rem;
  color: var(--paper);
}
.page-news .series-desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(243, 239, 230, .7);
}
.page-news .series-track {
  height: 3px;
  margin: 12px 0 9px;
  background: rgba(138, 154, 160, .2);
}
.page-news .series-bar {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
}
.page-news .series-card.is-done .series-bar {
  background: var(--mist);
}
.page-news .series-meta {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .05em;
  color: var(--mist);
  margin: 0;
}

/* ---------- 05 配套同步 ---------- */
.page-news .news-sync {
  background: var(--ink-deep);
}
.page-news .sync-panel {
  position: relative;
  padding: clamp(26px, 4.5vw, 56px) clamp(20px, 4vw, 56px) clamp(30px, 5vw, 60px);
  background: linear-gradient(160deg, rgba(30, 49, 56, .92) 0%, rgba(16, 27, 51, .92) 100%);
  border-top: 2px solid var(--line-gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}
.page-news .sync-panel .section-title {
  margin: .4rem 0 1rem;
}
.page-news .sync-lead {
  max-width: 66ch;
  font-size: .97rem;
  line-height: 1.85;
  color: rgba(243, 239, 230, .76);
  margin: 0 0 clamp(24px, 3.5vw, 38px);
}
.page-news .sync-steps {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
  margin-bottom: clamp(26px, 4vw, 44px);
}
.page-news .sync-step {
  border-left: 1px solid var(--line-cyan);
  padding-left: clamp(14px, 2vw, 18px);
}
.page-news .sync-step-num {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--gold);
}
.page-news .sync-step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin: .3rem 0 .35rem;
  color: var(--paper);
}
.page-news .sync-step-text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: rgba(243, 239, 230, .7);
}
.page-news .sync-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

@media (min-width: 960px) {
  .page-news .news-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-news .news-tags-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-news .news-series-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
  .page-news .sync-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .series-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 639px) {
  .page-news .news-item-row {
    grid-template-columns: auto minmax(0, 1fr);
  }
  .page-news .news-item-row > .badge {
    grid-column: 2;
    justify-self: start;
    margin-top: 8px;
  }
  .page-news .archive-row {
    grid-template-columns: 3.2rem minmax(0, 1fr);
  }
  .page-news .archive-count {
    grid-column: 2;
    justify-self: start;
  }
  .page-news .news-hero-visual {
    clip-path: none;
    border-left: 1px solid var(--line-cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item[data-current] .timeline-node {
    animation: none;
  }
  .page-news .filter-btn,
  .page-news .archive-row,
  .page-news .archive-name {
    transition: none;
  }
}
<<<END>>>