.page-news {
  --news-cut: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
  --news-gap: clamp(20px, 3vw, 40px);
  --news-anchor: 108px;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(20px, 3.2vw, 34px);
}

/* ---------- 刊头 ---------- */
.page-news .news-masthead {
  position: relative;
  padding-top: clamp(30px, 5vw, 62px);
  padding-bottom: clamp(26px, 4vw, 44px);
  isolation: isolate;
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.2;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 80%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 80%);
}

.page-news .news-masthead > * {
  position: relative;
  z-index: 1;
}

.page-news .news-masthead__title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(36px, 8.4vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-news .news-masthead__lead {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-masthead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-news .news-masthead__meta li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.page-news .news-masthead__meta li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

/* ---------- 栏目索引轨道 ---------- */
.page-news .news-jump {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: clamp(16px, 2.4vw, 22px);
  padding-bottom: clamp(16px, 2.4vw, 22px);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
  scrollbar-width: none;
}

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

.page-news .news-jump a {
  flex: 0 0 auto;
  padding: 8px 15px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--grid);
  clip-path: var(--news-cut);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-news .news-jump a:hover,
.page-news .news-jump a:focus-visible {
  color: var(--ink-deep);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 专题头条 ---------- */
.page-news .news-feature {
  display: grid;
  gap: var(--news-gap);
  padding-top: clamp(30px, 4.6vw, 56px);
  padding-bottom: clamp(30px, 4.6vw, 56px);
  scroll-margin-top: var(--news-anchor);
}

.page-news .news-feature__media {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-news .news-feature__media .media-frame {
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-news .news-feature__tag {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .news-feature__body {
  padding: clamp(22px, 3vw, 34px);
  background: var(--panel);
  border: 1px solid var(--grid);
  border-left: 2px solid var(--amber);
  clip-path: var(--news-cut);
}

.page-news .news-feature__body h2 {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--paper);
}

.page-news .news-feature__text {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-feature__steps {
  list-style: none;
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-news .news-feature__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .news-feature__steps .mono {
  font-size: 12px;
  color: var(--cyan);
}

.page-news .news-feature__body .btn {
  margin-top: clamp(18px, 2.4vw, 26px);
}

/* ---------- 通用栏目标题 ---------- */
.page-news .news-block {
  padding-top: clamp(30px, 4.8vw, 58px);
  padding-bottom: clamp(30px, 4.8vw, 58px);
  border-top: 1px solid var(--grid);
  scroll-margin-top: var(--news-anchor);
}

.page-news .news-block__grid {
  display: grid;
  gap: var(--news-gap);
  margin-top: clamp(22px, 3vw, 36px);
}

.page-news .news-block__side {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-news .news-block__side .media-frame {
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-news .news-block__caption {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* ---------- 版本时间轴 ---------- */
.page-news .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 26px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--teal) 55%, transparent 100%);
  opacity: 0.55;
}

.page-news .timeline__item {
  position: relative;
  padding: 0 0 clamp(22px, 2.8vw, 30px) 32px;
}

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

.page-news .timeline__item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
  transition: background-color var(--dur) var(--ease);
}

.page-news .timeline__item:hover::before,
.page-news .timeline__item:focus-within::before {
  background: var(--cyan);
}

.page-news .timeline__time {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--cyan);
}

.page-news .timeline__title {
  margin: 7px 0 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.28;
  color: var(--paper);
}

.page-news .timeline__title a {
  color: inherit;
  text-decoration: none;
  background-image: linear-gradient(var(--cyan), var(--cyan));
  background-repeat: no-repeat;
  background-size: 0 1px;
  background-position: 0 100%;
  transition: background-size var(--dur-slow) var(--ease), color var(--dur) var(--ease);
}

.page-news .timeline__title a:hover,
.page-news .timeline__title a:focus-visible {
  color: var(--cyan);
  background-size: 100% 1px;
}

.page-news .timeline__text {
  margin: 8px 0 12px;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 卡片列表 ---------- */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .news-card,
.page-news .scene-card {
  height: 100%;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--panel);
  border: 1px solid var(--grid);
  clip-path: var(--news-cut);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-news .news-card:hover,
.page-news .scene-card:hover {
  transform: translateY(-3px);
  background: var(--panel-2);
  border-color: var(--teal);
}

.page-news .news-card__time {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: 0.07em;
  color: var(--amber);
}

.page-news .news-card__title,
.page-news .scene-card__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 23px);
  line-height: 1.3;
  color: var(--paper);
}

.page-news .news-card__text,
.page-news .scene-card__text {
  margin: 10px 0 14px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 场景网格 ---------- */
.page-news .scene-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .scene-card__title {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--grid);
  color: var(--cyan);
}

/* ---------- 团队观察 ---------- */
.page-news .note-list {
  list-style: none;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0;
}

.page-news .note-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding-top: clamp(18px, 2.6vw, 26px);
  padding-bottom: clamp(18px, 2.6vw, 26px);
  border-bottom: 1px solid var(--grid);
}

.page-news .note-row:first-child {
  border-top: 1px solid var(--grid);
}

.page-news .note-row__idx {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grid);
}

.page-news .note-row__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.3;
  color: var(--paper);
}

.page-news .note-row__text {
  margin: 9px 0 14px;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 继续查阅 ---------- */
.page-news .news-exits {
  list-style: none;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .exit-card {
  position: relative;
  display: block;
  height: 100%;
  padding: clamp(20px, 2.8vw, 30px);
  background: var(--panel);
  border: 1px solid var(--grid);
  clip-path: var(--news-cut);
  color: inherit;
  text-decoration: none;
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-news .exit-card:hover,
.page-news .exit-card:focus-visible {
  transform: translateY(-3px);
  background: var(--panel-2);
  border-color: var(--cyan);
}

.page-news .exit-card__idx {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .exit-card__title {
  margin: 12px 0 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 25px);
  line-height: 1.25;
  color: var(--paper);
}

.page-news .exit-card__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .exit-card__arrow {
  display: inline-block;
  margin-top: 16px;
  font-size: 16px;
  color: var(--amber);
  transition: transform var(--dur) var(--ease);
}

.page-news .exit-card:hover .exit-card__arrow,
.page-news .exit-card:focus-visible .exit-card__arrow {
  transform: translateX(4px);
}

.page-news .news-contact {
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding-top: clamp(18px, 2.4vw, 24px);
  border-top: 1px solid var(--grid);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--teal);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-contact a:hover,
.page-news .news-contact a:focus-visible {
  color: var(--paper);
  border-color: var(--amber);
}

.page-news .news-exits-wrap {
  padding-bottom: clamp(46px, 7vw, 88px);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-news .news-feature {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-news .news-block__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.7fr);
    align-items: start;
  }

  .page-news .news-block--flip .news-block__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 0.9fr);
  }

  .page-news .news-block--flip .news-block__side {
    order: 2;
  }

  .page-news .news-block__side {
    position: sticky;
    top: calc(var(--news-anchor) + 12px);
  }

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

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

@media (min-width: 1180px) {
  .page-news .news-masthead__title {
    max-width: 22ch;
  }
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .scene-card,
  .page-news .exit-card,
  .page-news .exit-card__arrow,
  .page-news .timeline__title a,
  .page-news .timeline__item::before {
    transition: none;
  }

  .page-news .news-card:hover,
  .page-news .scene-card:hover,
  .page-news .exit-card:hover,
  .page-news .exit-card:focus-visible {
    transform: none;
  }
}
<<<END>>>