.page-news {
  position: relative;
  isolation: isolate;
  overflow-x: clip;
  padding-bottom: clamp(64px, 9vw, 112px);
  background:
    radial-gradient(760px 460px at 92% -6%, rgba(41, 224, 200, .11), transparent 66%),
    radial-gradient(620px 420px at 2% 6%, rgba(255, 122, 46, .07), transparent 62%);
}

.page-news::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 760px;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(to right, rgba(22, 58, 85, .34) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(to bottom, rgba(22, 58, 85, .22) 0 1px, transparent 1px 88px);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .92), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .92), transparent 88%);
}

/* ---------- 报头 ---------- */

.page-news .report-masthead {
  padding-top: clamp(24px, 4vw, 44px);
}

.page-news .breadcrumb {
  margin-bottom: 22px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .1em;
  color: var(--text-3);
}

.page-news .breadcrumb a {
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-news .masthead-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: end;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.page-news .eyebrow {
  margin: 0;
  color: var(--cyan);
  letter-spacing: .18em;
}

.page-news .masthead-lead h1 {
  margin: 10px 0 18px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-h1);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--text-1);
  text-wrap: balance;
}

.page-news .masthead-lead .lede {
  margin: 0;
  max-width: 60ch;
  font-size: var(--fs-body);
  line-height: 1.88;
  color: var(--text-2);
}

.page-news .masthead-issue {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
}

.page-news .issue-num {
  font-family: var(--font-mono);
  font-size: clamp(72px, 12vw, 152px);
  font-weight: 700;
  line-height: .8;
  letter-spacing: -.05em;
  background: linear-gradient(150deg, var(--cyan-soft) 0%, var(--cyan) 44%, var(--amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-news .issue-label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .24em;
  color: var(--text-3);
}

.page-news .masthead-figure {
  position: relative;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: clamp(10px, 1.4vw, 16px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--ink-800), var(--ink-950) 72%);
}

.page-news .masthead-figure::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 68px;
  height: 68px;
  border-top: 1px solid var(--amber);
  border-right: 1px solid var(--amber);
  border-radius: 0 var(--radius-lg) 0 0;
  opacity: .55;
  pointer-events: none;
}

.page-news .masthead-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 8px);
}

.page-news .masthead-figure figcaption {
  margin-top: 12px;
  padding: 0 4px 4px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--text-3);
}

/* ---------- 本期关注指南 ---------- */

.page-news .guide {
  margin-top: clamp(56px, 8vw, 96px);
}

.page-news .guide-head {
  margin-bottom: 28px;
}

.page-news .guide-head h2,
.page-news .section-head h2,
.page-news .next-step h2 {
  margin: 8px 0 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-h2);
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--text-1);
}

.page-news .guide-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-news .guide-copy p {
  margin: 0 0 18px;
  max-width: 68ch;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--text-2);
}

.page-news .guide-copy p:first-child {
  font-size: clamp(18px, 1.5vw, 20px);
  line-height: 1.82;
  color: var(--text-1);
}

.page-news .guide-copy p:last-child {
  margin-bottom: 0;
}

.page-news .guide-side {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(11, 30, 51, .95), rgba(6, 16, 29, .9));
}

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

.page-news .guide-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.page-news .guide-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .guide-steps li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--text-3);
}

.page-news .guide-steps li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-news .step-num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .1em;
  color: var(--amber);
}

/* ---------- 观察条目流 ---------- */

.page-news .stream {
  margin-top: clamp(56px, 8vw, 96px);
}

.page-news .section-head {
  margin-bottom: 28px;
}

.page-news .obs-block {
  position: relative;
}

.page-news .filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-news .obs-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-news .aside-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .22em;
  color: var(--text-3);
}

.page-news .filter-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .filter-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(11, 30, 51, .62);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .08em;
  color: var(--text-2);
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .filter-label:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .filter-count {
  font-size: 11px;
  opacity: .7;
}

.page-news #f-all:checked ~ .obs-layout .filter-label[for="f-all"],
.page-news #f-version:checked ~ .obs-layout .filter-label[for="f-version"],
.page-news #f-lineup:checked ~ .obs-layout .filter-label[for="f-lineup"],
.page-news #f-round:checked ~ .obs-layout .filter-label[for="f-round"],
.page-news #f-topic:checked ~ .obs-layout .filter-label[for="f-topic"] {
  background: linear-gradient(120deg, var(--cyan), var(--cyan-soft));
  border-color: transparent;
  color: var(--ink-950);
  font-weight: 600;
}

.page-news #f-version:checked ~ .obs-layout .obs-item:not([data-cat="version"]),
.page-news #f-lineup:checked ~ .obs-layout .obs-item:not([data-cat="lineup"]),
.page-news #f-round:checked ~ .obs-layout .obs-item:not([data-cat="round"]),
.page-news #f-topic:checked ~ .obs-layout .obs-item:not([data-cat="topic"]) {
  display: none;
}

.page-news .aside-issue {
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.page-news .aside-issue-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-news .aside-issue-note {
  margin: 6px 0 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--text-3);
}

.page-news .obs-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .obs-item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .obs-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-news .obs-item:hover::before {
  opacity: 1;
}

.page-news .obs-index {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--text-3);
  transition: color var(--dur) var(--ease);
}

.page-news .obs-item:hover .obs-index {
  color: var(--amber);
}

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

.page-news .obs-title {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.4vw, 20px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -.005em;
  color: var(--text-1);
}

.page-news .obs-summary {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--text-2);
}

.page-news .obs-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .obs-time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--text-3);
  white-space: nowrap;
}

/* ---------- 专题系列 ---------- */

.page-news .series {
  margin-top: clamp(56px, 8vw, 96px);
}

.page-news .series-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-news .series-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .series-card {
  padding: 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(11, 30, 51, .9), rgba(6, 16, 29, .74));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .series-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-news .series-index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .18em;
  color: var(--amber);
}

.page-news .series-card h3 {
  margin: 0 0 10px;
  font-size: var(--fs-h3);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-1);
}

.page-news .series-desc {
  margin: 0 0 14px;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--text-2);
}

.page-news .series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .series-list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--text-3);
}

.page-news .series-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
  opacity: .85;
}

.page-news .series-figure {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-950));
}

.page-news .series-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-news .series-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-3);
}

/* ---------- 更新说明归档 ---------- */

.page-news .archive {
  margin-top: clamp(56px, 8vw, 96px);
}

.page-news .archive-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-news .archive-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .archive-row:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-news .archive-ver {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-news .archive-main {
  min-width: 0;
}

.page-news .archive-title {
  margin: 0 0 6px;
  font-size: var(--fs-body);
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-1);
}

.page-news .archive-desc {
  margin: 0;
  max-width: 58ch;
  font-size: var(--fs-small);
  line-height: 1.82;
  color: var(--text-2);
}

.page-news .archive-how {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--text-3);
}

.page-news .archive-figure {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-950));
}

.page-news .archive-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-news .archive-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-3);
}

/* ---------- 下一步 ---------- */

.page-news .next-step {
  margin-top: clamp(56px, 8vw, 96px);
  padding-top: clamp(32px, 4vw, 48px);
  border-top: 1px solid var(--line);
}

.page-news .next-step h2 {
  max-width: 20ch;
}

.page-news .next-step p {
  margin: 16px 0 24px;
  max-width: 60ch;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--text-2);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-news .obs-time {
    margin-left: auto;
  }

  .page-news .archive-row {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 700px) {
  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-news .masthead-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 48px;
    padding-bottom: 32px;
  }
}

@media (min-width: 900px) {
  .page-news .guide-body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 920px) {
  .page-news .obs-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .obs-aside {
    position: sticky;
    top: 104px;
  }

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

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

@media (min-width: 960px) {
  .page-news .series-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
    align-items: start;
  }

  .page-news .archive-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .archive-figure,
  .page-news .series-figure {
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .series-card,
  .page-news .filter-label,
  .page-news .obs-item::before,
  .page-news .obs-index {
    transition: none;
  }

  .page-news .series-card:hover {
    transform: none;
  }
}
<<<END>>>