.page-news {
  --obs-band-bg: #0B1B28;
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-news .breadcrumb {
  padding-block: clamp(1.1rem, 3vw, 1.8rem) 0.4rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

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

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

.page-news .dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  display: inline-block;
  flex: none;
}

.page-news .dot--cyan { background: var(--cyan); }
.page-news .dot--amber { background: var(--amber); }
.page-news .dot--legacy { background: var(--legacy); }
.page-news .dot--orange { background: var(--orange); }

/* ---------- 首屏 ---------- */
.page-news .obs-hero {
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(118deg, rgba(34, 224, 208, 0.14), transparent 46%),
    linear-gradient(298deg, rgba(255, 138, 61, 0.11), transparent 50%);
}

.page-news .obs-hero__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  padding-block: clamp(1.4rem, 4vw, 2.4rem) clamp(2.2rem, 5vw, 3.6rem);
  align-items: end;
}

.page-news .obs-hero__title {
  margin: 0.35rem 0 0;
  line-height: 0.96;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.page-news .obs-hero__lede {
  margin-top: 1rem;
  max-width: 40rem;
}

.page-news .obs-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-news .obs-hero__panel {
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
}

.page-news .obs-issue {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-news .obs-panel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .obs-panel-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.55rem;
  border-bottom: 1px dashed var(--line);
  font-size: 0.9rem;
}

.page-news .obs-panel-list li:last-child {
  border-bottom: none;
}

.page-news .obs-panel-list .data-value {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.page-news .obs-panel-note {
  margin: 0.85rem 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
}

/* ---------- 头条 ---------- */
.page-news .obs-story {
  padding-block: clamp(2rem, 5vw, 3.4rem);
}

.page-news .obs-story__head {
  max-width: 46rem;
}

.page-news .obs-story__head .section-title {
  margin: 0.4rem 0 0;
  line-height: 1.24;
}

.page-news .obs-figure {
  margin: clamp(1.4rem, 4vw, 2.2rem) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .obs-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .obs-story__grid {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(1.4rem, 4vw, 2rem);
}

.page-news .obs-story__grid p {
  margin: 0 0 0.9rem;
  line-height: 1.78;
}

.page-news .obs-bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
  align-content: start;
}

.page-news .obs-bullets li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.6rem;
  align-items: baseline;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-news .obs-bullets .mono {
  color: var(--cyan);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

/* ---------- 横向数据带 ---------- */
.page-news .obs-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .obs-band__item {
  background: var(--obs-band-bg);
  padding: 0.9rem 1rem;
  display: grid;
  gap: 0.2rem;
}

.page-news .obs-band__num {
  font-size: clamp(1.3rem, 3.4vw, 1.75rem);
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.page-news .obs-band__label {
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--text-2);
}

/* ---------- 双栏骨架 ---------- */
.page-news .obs-shell {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  padding-top: clamp(1rem, 3vw, 2rem);
}

.page-news .obs-index__label {
  margin: 0 0 0.8rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--text-2);
}

.page-news .obs-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-news .obs-index__list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0.6rem;
  border-left: 2px solid var(--line);
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-news .obs-index__list .mono {
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-news .obs-index__list a:hover,
.page-news .obs-index__list a:focus-visible {
  color: var(--text);
  border-left-color: var(--cyan);
  background: rgba(34, 224, 208, 0.07);
}

.page-news .obs-index__list a:focus-visible,
.page-news .obs-entry__more summary:focus-visible,
.page-news .obs-versions .tab:focus-visible,
.page-news .btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 章节 ---------- */
.page-news .obs-section {
  padding-bottom: clamp(2rem, 5vw, 3.2rem);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(2rem, 5vw, 3.2rem);
}

.page-news .obs-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-news .obs-section__head {
  max-width: 44rem;
  margin-bottom: clamp(1.1rem, 3vw, 1.6rem);
}

.page-news .obs-section__head .section-title {
  margin: 0.4rem 0 0.5rem;
  line-height: 1.26;
}

.page-news .obs-section__head .muted {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 专题列表 ---------- */
.page-news .obs-entries {
  display: grid;
}

.page-news .obs-entry {
  border-top: 1px solid var(--line);
  padding-block: clamp(1rem, 2.6vw, 1.4rem);
  display: grid;
  gap: 0.5rem;
  transition: background var(--ease);
}

.page-news .obs-entry:hover {
  background: rgba(34, 224, 208, 0.04);
}

.page-news .obs-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.72rem;
}

.page-news .obs-entry__num {
  color: var(--text-2);
  letter-spacing: 0.1em;
}

.page-news .obs-entry__when {
  margin-left: auto;
  color: var(--text-2);
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}

.page-news .tag--batch {
  color: var(--cyan);
  border-color: rgba(34, 224, 208, 0.42);
  background: var(--cyan-soft);
}

.page-news .tag--config {
  color: var(--orange);
  border-color: rgba(255, 138, 61, 0.42);
  background: var(--orange-soft);
}

.page-news .obs-entry__title {
  margin: 0;
  font-size: clamp(1.05rem, 2.6vw, 1.32rem);
  line-height: 1.45;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.page-news .obs-entry__more {
  margin-top: 0.1rem;
}

.page-news .obs-entry__more summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding: 0.2rem 0;
}

.page-news .obs-entry__more summary::-webkit-details-marker {
  display: none;
}

.page-news .obs-entry__more summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 1.1rem;
  height: 1.1rem;
  border: 1px solid var(--cyan);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  line-height: 1;
}

.page-news .obs-entry__more[open] summary::before {
  content: "−";
}

.page-news .obs-entry__more p {
  margin: 0.6rem 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-2);
  max-width: 46rem;
}

/* ---------- 分栏内容 ---------- */
.page-news .obs-split {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2.2rem);
}

.page-news .obs-split .obs-figure {
  margin: 0;
}

.page-news .obs-split p {
  margin: 0 0 0.9rem;
  line-height: 1.78;
}

.page-news .obs-split a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 208, 0.45);
}

.page-news .obs-split a:hover,
.page-news .obs-split a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ---------- 配置表 ---------- */
.page-news .obs-config {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .obs-config__row {
  display: grid;
  gap: 0.25rem;
  background: var(--ink-2);
  padding: 0.85rem 1rem;
}

.page-news .obs-config__name {
  color: var(--cyan);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.page-news .obs-config__spec {
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-news .obs-config__fit {
  font-size: 0.8rem;
  color: var(--text-2);
}

.page-news .obs-note {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
}

.page-news .obs-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 208, 0.45);
}

/* ---------- 版本标签页 ---------- */
.page-news .obs-versions .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.page-news .obs-versions .tab {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-2);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-news .obs-versions .tab:hover {
  color: var(--text);
  border-color: var(--cyan);
}

.page-news .obs-versions .tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-news .obs-versions .tab-panel {
  padding-top: 1rem;
}

.page-news .obs-versions .tab-panel p {
  margin: 0 0 0.8rem;
  line-height: 1.78;
  max-width: 46rem;
}

.page-news .obs-versions .tab-panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 208, 0.45);
}

.page-news .obs-versions .tab-panel a:hover,
.page-news .obs-versions .tab-panel a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--text);
}

.page-news .obs-versions .obs-figure {
  margin-top: clamp(1.3rem, 3vw, 1.8rem);
}

/* ---------- 反馈 ---------- */
.page-news .obs-feedback {
  border-bottom: none;
}

.page-news .obs-feedback__inner {
  display: grid;
  gap: 1.4rem;
  padding: clamp(1.3rem, 4vw, 2.2rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    linear-gradient(140deg, rgba(255, 138, 61, 0.16), transparent 62%),
    var(--ink-2);
}

.page-news .obs-feedback__title {
  margin: 0.4rem 0 0.6rem;
  font-size: clamp(1.35rem, 3.6vw, 2rem);
  line-height: 1.3;
}

.page-news .obs-feedback__inner p {
  margin: 0;
  line-height: 1.78;
  max-width: 44rem;
  font-size: 0.95rem;
}

.page-news .obs-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: flex-start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 40rem) {
  .page-news .obs-band {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .obs-config__row {
    grid-template-columns: 8.5rem minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: baseline;
    gap: 0.9rem;
  }

  .page-news .obs-feedback__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 56rem) {
  .page-news .obs-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
  }

  .page-news .obs-story__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news .obs-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-news .obs-split--reverse {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  }

  .page-news .obs-split--reverse .obs-figure {
    order: -1;
  }
}

@media (min-width: 64rem) {
  .page-news .obs-shell {
    grid-template-columns: 12rem minmax(0, 1fr);
    align-items: start;
  }

  .page-news .obs-index {
    position: sticky;
    top: 2rem;
  }

  .page-news .obs-index__list a {
    font-size: 0.86rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .obs-entry,
  .page-news .obs-index__list a,
  .page-news .obs-versions .tab {
    transition: none;
  }
}