/* ===== 专题观察 / page-news ===== */

.page-news {
  display: block;
}

.page-news .news-trail {
  padding-top: clamp(20px, 4vw, 36px);
}

/* --- 刊头 --- */
.page-news .news-masthead {
  position: relative;
  padding-block: clamp(24px, 4vw, 44px) clamp(36px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-masthead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan) 46%, var(--lime) 100%);
  opacity: .6;
}

.page-news .news-title {
  margin: .1em 0 .28em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 11vw, 96px);
  line-height: .95;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-news .news-standfirst {
  max-width: 64ch;
  margin: 0;
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.75;
  color: var(--silver);
}

.page-news .news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-tags a {
  text-decoration: none;
}

.page-news .news-tags a:hover,
.page-news .news-tags a:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
}

/* --- 栏目说明 --- */
.page-news .news-what {
  padding-top: clamp(36px, 5vw, 64px);
}

.page-news .note-num {
  margin: 12px 0 4px;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: -.01em;
  color: var(--lime);
}

.page-news .note-sub {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* --- 四个系列 --- */
.page-news .news-series-figure {
  aspect-ratio: 14 / 9;
  margin: clamp(28px, 4vw, 44px) 0 clamp(24px, 3vw, 36px);
}

.page-news .news-series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 560px) {
  .page-news .news-series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

.page-news .news-series-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 20px 20px;
}

.page-news .news-series-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 36px;
  height: 3px;
  background: var(--blue);
}

.page-news .news-series-card:nth-child(even)::before {
  background: var(--cyan);
}

.page-news .series-index {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-news .series-cadence {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--muted);
}

/* --- 最新专题：错位三列 --- */
.page-news .news-feed-wrap {
  position: relative;
}

.page-news .news-feed {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

@media (min-width: 680px) {
  .page-news .news-feed {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-news .news-feed {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .news-feed > .news-card:nth-child(3n + 2) {
    margin-top: 46px;
  }
  .page-news .news-feed > .news-card:nth-child(3n + 3) {
    margin-top: 92px;
  }
}

.page-news .news-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px 20px;
}

.page-news .news-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .2s var(--ease);
}

.page-news .news-card:hover::before,
.page-news .news-card:focus-within::before {
  transform: scaleY(1);
}

.page-news .news-card .card-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-news .news-more {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.page-news .news-more > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--blue-2);
}

.page-news .news-more > summary::-webkit-details-marker {
  display: none;
}

.page-news .news-more > summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  height: 16px;
  line-height: 15px;
  text-align: center;
  border: 1px solid currentColor;
  font-size: 12px;
  transition: transform .2s var(--ease);
}

.page-news .news-more[open] > summary {
  color: var(--lime);
}

.page-news .news-more[open] > summary::before {
  transform: rotate(45deg);
}

.page-news .news-more p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* --- 横向数据条 --- */
.page-news .news-band {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background:
    linear-gradient(100deg, var(--ink-2), var(--ink-3) 58%, var(--ink-2));
}

.page-news .news-band::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    115deg,
    transparent 0 22px,
    var(--grid-fine) 22px 23px
  );
}

.page-news .news-band-inner {
  position: relative;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-block: clamp(26px, 4vw, 40px);
}

.page-news .news-band-item {
  flex: 1 1 178px;
  min-width: 168px;
  padding-inline: clamp(16px, 2.4vw, 32px);
  border-left: 1px solid var(--line);
  scroll-snap-align: start;
}

.page-news .news-band-item:first-child {
  padding-left: 0;
  border-left: 0;
}

.page-news .news-band-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 48px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-news .news-band-item:nth-child(even) .news-band-num {
  color: var(--blue-2);
}

.page-news .news-band-label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* --- 深度阅读：两栏更宽 --- */
.page-news .news-deep {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 940px) {
  .page-news .news-deep {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(20px, 3vw, 32px);
  }
}

.page-news .news-deep-lead {
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-news .news-deep-figure {
  aspect-ratio: 3 / 2;
  margin: 0;
}

.page-news .news-deep-body {
  padding: 22px clamp(18px, 3vw, 30px) 26px;
}

.page-news .news-deep-body p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .news-deep-side {
  display: grid;
  gap: 20px;
}

.page-news .news-side-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px;
}

/* --- 版本迭代观察 --- */
.page-news .news-timeline {
  position: relative;
  margin: 0 0 clamp(28px, 4vw, 44px) 8px;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line-strong);
}

.page-news .news-timeline > li {
  position: relative;
  padding: 0 0 30px 26px;
}

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

.page-news .news-timeline-dot {
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--blue);
  transform: rotate(45deg);
}

.page-news .news-timeline > li:last-child .news-timeline-dot {
  left: -6px;
  width: 11px;
  height: 11px;
  background: var(--lime);
}

.page-news .news-timeline-ver {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-news .news-timeline h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 24px);
  letter-spacing: -.01em;
  line-height: 1.25;
  color: var(--paper);
}

.page-news .news-timeline p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .news-version-figure {
  aspect-ratio: 14 / 9;
  margin: 0;
}

/* --- 会员实践 --- */
.page-news .news-apply {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  counter-reset: news-apply;
}

.page-news .news-apply > li {
  position: relative;
  padding: 13px 0 0 40px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
  counter-increment: news-apply;
}

.page-news .news-apply > li:nth-child(n + 2) {
  padding-top: 16px;
}

.page-news .news-apply > li::before {
  content: counter(news-apply, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--blue-2);
}

.page-news .news-practice-figure {
  aspect-ratio: 3 / 2;
  margin: clamp(26px, 4vw, 40px) 0 0;
}

/* --- 订阅与更新提醒 --- */
.page-news .news-subscribe {
  border-top: 1px solid var(--line);
}

.page-news .news-subscribe-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

@media (min-width: 900px) {
  .page-news .news-subscribe-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
    gap: clamp(32px, 5vw, 72px);
  }
}

.page-news .news-subscribe-main p {
  max-width: 54ch;
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .news-subscribe-main a {
  color: var(--blue-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-subscribe-main a:hover,
.page-news .news-subscribe-main a:focus-visible {
  color: var(--lime);
}

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

.page-news .news-subscribe-list > li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-subscribe-list > li:first-child {
  border-top: 1px solid var(--line);
}

.page-news .news-subscribe-list strong {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-news .news-subscribe-list span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* --- 图片兜底 --- */
.page-news .figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- 动效降级 --- */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-card::before,
  .page-news .news-more > summary::before {
    transition: none;
  }
}
<<<END>>>