.page-news {
  --news-rail: 244px;
  --news-grain: radial-gradient(rgba(251, 252, 253, 0.5) 0.5px, transparent 0.5px);
  background: var(--c-snow);
  color: var(--c-ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(18px, 3.4vw, 30px) 0 clamp(78px, 12vw, 132px);
  background: linear-gradient(152deg, var(--c-lake) 0%, var(--c-deep) 58%, #06303f 100%);
  color: var(--c-snow);
  border-radius: 0 0 var(--r-lg) var(--r-lg);
  overflow: hidden;
  isolation: isolate;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--news-grain);
  background-size: 4px 4px;
  opacity: 0.09;
  pointer-events: none;
  z-index: 0;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -16vw;
  top: -22vw;
  width: min(72vw, 740px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 162, 39, 0.26), transparent 64%);
  pointer-events: none;
  z-index: 0;
}

.page-news .news-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-news .news-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 32px);
  font-size: var(--fs-13);
  color: rgba(251, 252, 253, 0.6);
}

.page-news .news-hero .breadcrumb a {
  color: rgba(251, 252, 253, 0.88);
  text-decoration: none;
}

.page-news .news-hero .breadcrumb a:hover {
  color: var(--c-snow);
  text-decoration: underline;
}

.page-news .hero-grid {
  display: grid;
  gap: clamp(26px, 4.5vw, 52px);
  align-items: center;
}

.page-news .hero-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
}

.page-news .hero-kicker-text {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.04em;
  color: rgba(251, 252, 253, 0.72);
}

.page-news .news-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.1rem, 7vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.page-news .hero-lede {
  max-width: 34rem;
  margin: 0 0 26px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(251, 252, 253, 0.84);
}

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

.page-news .btn-hero-line {
  background: transparent;
  border: 1px solid rgba(251, 252, 253, 0.42);
  color: var(--c-snow);
}

.page-news .btn-hero-line:hover {
  background: rgba(251, 252, 253, 0.14);
  border-color: rgba(251, 252, 253, 0.72);
  color: var(--c-snow);
}

.page-news .hero-figure {
  margin: 0;
}

.page-news .hero-figure .figure-media {
  overflow: hidden;
  aspect-ratio: 12 / 7;
  border-radius: var(--r-lg);
  border: 1px solid rgba(251, 252, 253, 0.2);
  box-shadow: 0 46px 90px -52px rgba(0, 0, 0, 0.88);
}

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

@media (min-width: 900px) {
  .page-news .hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  }
}

/* ---------- 本期修订摘要 ---------- */
.page-news .news-summary {
  position: relative;
  z-index: 3;
  margin-top: clamp(-70px, -7vw, -40px);
}

.page-news .summary-card {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(24px, 3.4vw, 40px);
  background: var(--c-snow);
  border: 1px solid var(--line-soft);
  border-top: 4px solid var(--c-red);
  border-radius: var(--r-lg);
  box-shadow: 0 40px 72px -46px rgba(8, 71, 92, 0.62);
}

.page-news .summary-kicker {
  margin: 0 0 12px;
  font-size: var(--fs-13);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-lake);
}

.page-news .summary-count {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
}

.page-news .summary-num {
  font-family: var(--font-mono);
  font-size: clamp(2.8rem, 9vw, 4.2rem);
  line-height: 1;
  font-weight: 700;
  color: var(--c-deep);
  padding-bottom: 4px;
  border-bottom: 3px solid var(--c-gold);
}

.page-news .summary-unit {
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--ink-60);
}

.page-news .summary-text {
  max-width: 27rem;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--ink-60);
}

.page-news .summary-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .summary-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line-soft);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--ink-80);
}

.page-news .summary-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .summary-list .tag {
  flex: 0 0 auto;
}

@media (min-width: 880px) {
  .page-news .summary-card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: center;
  }
}

/* ---------- 通用章节 ---------- */
.page-news .section {
  padding: clamp(46px, 6.6vw, 88px) 0;
}

.page-news .section-head {
  margin-bottom: clamp(26px, 3.4vw, 44px);
}

.page-news .section-head .section-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 6vw, 3.1rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(11, 110, 143, 0.18);
}

.page-news .section-head .title-lg {
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.page-news .section-lede {
  max-width: 42rem;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-60);
}

.page-news .section-lede a,
.page-news .topic-body a,
.page-news .timeline-note a,
.page-news .news-outro a {
  color: var(--c-lake);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 110, 143, 0.32);
}

.page-news .section-lede a:hover,
.page-news .topic-body a:hover,
.page-news .timeline-note a:hover,
.page-news .news-outro a:hover {
  color: var(--c-red);
  border-bottom-color: var(--c-red);
}

/* ---------- 条目流 ---------- */
.page-news .stream-grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-news .filter-rail {
  min-width: 0;
}

.page-news .rail-title {
  margin: 0 0 12px;
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-40);
}

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

.page-news .filter-pill {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--c-snow);
  color: var(--ink-80);
  font-size: var(--fs-14);
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .filter-pill:hover {
  border-color: var(--c-wine);
  color: var(--c-wine);
  transform: translateX(2px);
}

.page-news .filter-pill[data-current] {
  background: var(--c-red);
  border-color: var(--c-red);
  color: var(--c-snow);
}

.page-news .filter-pill[data-current]:hover {
  color: var(--c-snow);
}

.page-news .pill-count {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  opacity: 0.68;
}

.page-news .stream-body {
  min-width: 0;
}

.page-news .stream-group + .stream-group {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-news .group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .group-head .title-sm {
  margin: 0;
  letter-spacing: -0.01em;
}

.page-news .group-count {
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: rgba(11, 110, 143, 0.09);
  color: var(--c-lake);
  font-size: var(--fs-12);
}

.page-news .entry-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-snow);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  box-shadow: 0 20px 40px -38px rgba(8, 71, 92, 0.6);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-news .entry-card + .entry-card {
  margin-top: 12px;
}

.page-news .entry-card:hover {
  transform: translateY(-3px);
  border-color: rgba(124, 31, 43, 0.45);
  box-shadow: 0 28px 54px -40px rgba(8, 71, 92, 0.72);
}

.page-news .entry-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px 18px;
  margin-bottom: 10px;
}

.page-news .entry-title {
  flex: 1 1 15rem;
  min-width: 0;
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.55;
  font-weight: 700;
  letter-spacing: -0.005em;
}

.page-news .entry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  flex: 0 0 auto;
}

.page-news .entry-desc {
  margin: 0 0 12px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-60);
}

.page-news .entry-detail {
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
}

.page-news .entry-detail summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: var(--fs-13);
  font-weight: 700;
  color: var(--c-lake);
  cursor: pointer;
  list-style: none;
}

.page-news .entry-detail summary::-webkit-details-marker {
  display: none;
}

.page-news .entry-detail summary::after {
  content: "＋";
  font-size: var(--fs-14);
  line-height: 1;
  color: var(--c-gold);
}

.page-news .entry-detail[open] summary::after {
  content: "－";
}

.page-news .entry-detail p {
  margin: 10px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--c-mist);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-80);
}

@media (min-width: 1000px) {
  .page-news .stream-grid {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
  }

  .page-news .filter-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-news .filter-list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-news .filter-pill {
    width: 100%;
  }
}

/* ---------- 专题观察 ---------- */
.page-news .topics {
  background: linear-gradient(180deg, rgba(228, 235, 239, 0.6), rgba(251, 252, 253, 0));
}

.page-news .topic-stack {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-news .topic-card {
  display: grid;
  overflow: hidden;
  background: var(--c-snow);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  box-shadow: 0 34px 60px -48px rgba(8, 71, 92, 0.62);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .topic-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 31, 43, 0.4);
}

.page-news .topic-figure {
  margin: 0;
}

.page-news .topic-figure .figure-media {
  min-height: 200px;
  height: 100%;
  overflow: hidden;
}

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

.page-news .topic-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3.2vw, 40px);
}

.page-news .topic-index {
  font-size: var(--fs-13);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-gold);
}

.page-news .topic-body .title-md {
  margin: 0;
  letter-spacing: -0.01em;
}

.page-news .topic-body p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--ink-60);
}

.page-news .topic-body .btn {
  align-self: flex-start;
  margin-top: 4px;
}

@media (min-width: 900px) {
  .page-news .topic-card {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  }

  .page-news .topic-card:nth-child(even) .topic-figure {
    order: 2;
  }
}

/* ---------- 版本线索 ---------- */
.page-news .timeline-figure {
  margin: 0 0 clamp(24px, 4vw, 42px);
}

.page-news .timeline-figure .figure-media {
  overflow: hidden;
  aspect-ratio: 13 / 5.6;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
}

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

.page-news .tl {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .tl-node {
  position: relative;
  padding-left: 30px;
}

.page-news .tl-node::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-gold);
  box-shadow: 0 0 0 5px rgba(217, 162, 39, 0.16);
}

.page-news .tl-node::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 24px;
  bottom: -22px;
  width: 1px;
  background: var(--line);
}

.page-news .tl-node:last-child::after {
  display: none;
}

.page-news .tl-ver {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 11px;
  border-radius: var(--r-pill);
  background: rgba(217, 162, 39, 0.16);
  color: var(--c-deep);
  font-size: var(--fs-13);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-news .tl-node h3 {
  margin: 0 0 6px;
  font-size: var(--fs-16);
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.page-news .tl-node p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--ink-60);
}

.page-news .timeline-note {
  margin: clamp(24px, 3.6vw, 38px) 0 0;
  font-size: var(--fs-13);
  color: var(--ink-60);
}

@media (min-width: 900px) {
  .page-news .tl {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .tl-node {
    padding: 34px 16px 0 0;
  }

  .page-news .tl-node::before {
    left: 0;
    top: 6px;
  }

  .page-news .tl-node::after {
    left: 16px;
    right: -18px;
    top: 11px;
    bottom: auto;
    width: auto;
    height: 1px;
  }

  .page-news .tl-node:last-child::after {
    display: none;
  }
}

/* ---------- 订阅 ---------- */
.page-news .sub-card {
  position: relative;
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(26px, 3.6vw, 46px);
  overflow: hidden;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--c-deep) 0%, var(--c-lake) 100%);
  color: var(--c-snow);
}

.page-news .sub-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--news-grain);
  background-size: 4px 4px;
  opacity: 0.1;
  pointer-events: none;
}

.page-news .sub-copy,
.page-news .sub-actions {
  position: relative;
  z-index: 1;
}

.page-news .sub-card h2 {
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}

.page-news .sub-card p {
  max-width: 34rem;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: rgba(251, 252, 253, 0.82);
}

.page-news .sub-note {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.02em;
  color: rgba(217, 162, 39, 0.92);
}

.page-news .sub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: center;
}

@media (min-width: 860px) {
  .page-news .sub-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: center;
  }
}

/* ---------- 回看往期 ---------- */
.page-news .archive-grid {
  display: grid;
  gap: 14px;
}

.page-news .archive-card {
  padding: 22px;
  background: var(--c-snow);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  box-shadow: 0 20px 40px -40px rgba(8, 71, 92, 0.6);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .archive-card:hover {
  transform: translateY(-3px);
  border-color: rgba(217, 162, 39, 0.7);
}

.page-news .archive-range {
  display: block;
  margin-bottom: 8px;
  font-size: var(--fs-18);
  font-weight: 700;
  color: var(--c-deep);
}

.page-news .archive-card p {
  margin: 0;
  font-size: var(--fs-13);
  line-height: 1.75;
  color: var(--ink-60);
}

.page-news .archive-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
}

.page-news .archive-foot p {
  margin: 0;
  font-size: var(--fs-13);
  color: var(--ink-60);
}

.page-news .news-outro {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-60);
}

@media (min-width: 640px) {
  .page-news .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-news .archive-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry-card,
  .page-news .topic-card,
  .page-news .archive-card,
  .page-news .filter-pill {
    transition: none;
  }
}