.page-news {
  --obs-line: rgba(29, 74, 122, 0.28);
  --obs-line-strong: rgba(29, 74, 122, 0.5);
}

/* ---------- 首屏 ---------- */
.page-news .obs-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 54px) 0 clamp(44px, 7vw, 84px);
  background:
    radial-gradient(1100px 520px at 84% -14%, rgba(0, 229, 255, 0.16), transparent 62%),
    radial-gradient(760px 420px at 6% 108%, rgba(255, 107, 53, 0.12), transparent 68%),
    var(--ink-900);
}

.page-news .obs-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29, 74, 122, 0.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 74, 122, 0.34) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 76%);
  pointer-events: none;
}

.page-news .obs-hero .container {
  position: relative;
  z-index: 1;
}

.page-news .obs-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
  margin-top: clamp(22px, 4vw, 38px);
}

.page-news .obs-hero-lead {
  max-width: 34em;
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-dark);
}

.page-news .obs-hero-actions {
  margin-top: clamp(22px, 3vw, 30px);
  gap: 12px;
}

.page-news .obs-hero-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-news .obs-index-card {
  position: relative;
  padding: 16px 18px 18px;
  background: rgba(15, 42, 77, 0.74);
  border: 1px solid var(--rule-soft);
  border-left: 2px solid var(--cyan);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .obs-index-card:nth-child(2) {
  border-left-color: var(--mint);
}

.page-news .obs-index-card:nth-child(3) {
  border-left-color: var(--amber);
}

.page-news .obs-index-card:nth-child(4) {
  border-left-color: var(--signal);
}

.page-news .obs-index-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 229, 255, 0.45);
}

.page-news .obs-index-card .index-num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-news .obs-index-title {
  margin: 8px 0 5px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.3;
  color: #ffffff;
}

.page-news .obs-index-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dark-dim);
}

/* ---------- 本期特稿 ---------- */
.page-news .obs-feature-head {
  max-width: 46em;
}

.page-news .obs-feature-lead {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-light-dim);
}

.page-news .obs-feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-news .obs-feature-visual {
  margin: 0;
  min-width: 0;
}

.page-news .obs-caption {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-light-dim);
}

.page-news .obs-shorts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-content: start;
}

.page-news .obs-short {
  padding: 20px 22px 22px;
  background: #ffffff;
  border: 1px solid var(--obs-line);
  border-top: 2px solid var(--cyan);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-news .obs-short:nth-child(2) {
  border-top-color: var(--signal);
}

.page-news .obs-short:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(11, 31, 58, 0.08);
}

.page-news .obs-short-meta {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-light-dim);
}

.page-news .obs-short-title {
  margin: 9px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.38;
  letter-spacing: 0.01em;
  color: var(--text-light);
}

.page-news .obs-short-text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-light-dim);
}

/* ---------- 版本刻度带 ---------- */
.page-news .obs-ruler {
  padding: 24px 0 20px;
  background: var(--ink-900);
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}

.page-news .obs-ruler-track {
  display: flex;
  gap: clamp(16px, 4vw, 52px);
  margin-top: 14px;
  padding-bottom: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .obs-tick {
  position: relative;
  display: grid;
  gap: 6px;
  flex: 0 0 auto;
  min-width: 148px;
  padding-top: 18px;
  border-top: 1px solid var(--rule-soft);
  text-decoration: none;
  transition: border-color 0.2s var(--ease);
}

.page-news .obs-tick::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 13px;
  background: var(--cyan);
}

.page-news .obs-tick-num {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-news .obs-tick-text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dark-dim);
}

.page-news .obs-tick:hover,
.page-news .obs-tick:focus-visible {
  border-top-color: var(--cyan);
}

.page-news .obs-tick:hover .obs-tick-text,
.page-news .obs-tick:focus-visible .obs-tick-text {
  color: var(--text-dark);
}

.page-news .obs-tick:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

/* ---------- 版本说明子栏 ---------- */
.page-news .obs-versions-head {
  max-width: 46em;
}

.page-news .obs-vcards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-news .obs-vcard {
  position: relative;
  min-width: 0;
  padding: 20px 20px 22px;
  background: rgba(11, 31, 58, 0.72);
  border: 1px solid var(--rule-soft);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .obs-vcard:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 229, 255, 0.4);
}

.page-news .obs-vcard-ver {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-news .obs-vcard-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.page-news .obs-vcard-list {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .obs-vcard-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dark-dim);
}

.page-news .obs-vcard-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-news .obs-version-map {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-news .obs-version-map .obs-caption {
  color: var(--text-dark-dim);
}

/* ---------- 条目流 ---------- */
.page-news .obs-archive-head {
  max-width: 46em;
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--obs-line);
}

.page-news .filter-item {
  position: relative;
  display: inline-flex;
}

.page-news .filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-news .filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--obs-line-strong);
  border-radius: 999px;
  background: #ffffff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-light-dim);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .filter-pill::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(29, 74, 122, 0.32);
}

.page-news .filter-pill[data-dot="version"]::before {
  background: var(--cyan);
}

.page-news .filter-pill[data-dot="operation"]::before {
  background: var(--mint);
}

.page-news .filter-pill[data-dot="region"]::before {
  background: var(--amber);
}

.page-news .filter-pill[data-dot="coop"]::before {
  background: var(--signal);
}

.page-news .filter-input:checked + .filter-pill {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.1);
  color: var(--text-light);
  box-shadow: inset 0 0 0 1px rgba(0, 229, 255, 0.35);
}

.page-news .filter-input:focus-visible + .filter-pill {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

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

.page-news .entry {
  display: grid;
  grid-template-columns: 30px 9px minmax(0, 1fr);
  gap: 0 14px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--obs-line);
  outline: none;
  transition: background-color 0.2s var(--ease);
}

.page-news .entry:focus-visible {
  background-color: rgba(0, 229, 255, 0.06);
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-news .entry-seq {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .entry-dot {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--mist);
}

.page-news .entry-dot--version {
  background: var(--cyan);
}

.page-news .entry-dot--operation {
  background: var(--mint);
}

.page-news .entry-dot--region {
  background: var(--amber);
}

.page-news .entry-dot--coop {
  background: var(--signal);
}

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

.page-news .entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
}

.page-news .entry-cat {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-light);
  font-weight: 600;
}

.page-news .entry-time {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-light-dim);
}

.page-news .entry-title {
  margin: 7px 0 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 700;
  line-height: 1.38;
  letter-spacing: 0.01em;
  color: var(--text-light);
  transition: color 0.2s var(--ease);
}

.page-news .entry:hover .entry-title,
.page-news .entry:focus-visible .entry-title {
  color: #0a63a0;
}

.page-news .entry-summary {
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-light-dim);
  transition: max-height 0.24s var(--ease), opacity 0.24s var(--ease), margin-top 0.24s var(--ease);
}

.page-news .entry:hover .entry-summary,
.page-news .entry:focus-visible .entry-summary {
  max-height: 9em;
  margin-top: 9px;
  opacity: 1;
}

.page-news .entry-media {
  max-width: 420px;
  margin-top: 14px;
}

/* ---------- 下一步 ---------- */
.page-news .obs-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-news .obs-next-lead .lead {
  max-width: 34em;
  margin-top: 14px;
  color: var(--text-dark);
}

.page-news .obs-next-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-news .obs-next-link {
  display: grid;
  gap: 6px;
  padding: 20px 22px;
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .obs-next-link:hover,
.page-news .obs-next-link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
}

.page-news .obs-next-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-news .obs-next-num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--signal);
}

.page-news .obs-next-link .panel-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.page-news .obs-next-link .panel-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dark-dim);
}

/* ---------- 分类筛选（脚本不执行时全部条目照常显示） ---------- */
.page-news:has(#obs-cat-version:checked) .entry:not([data-tag="version"]) {
  display: none;
}

.page-news:has(#obs-cat-operation:checked) .entry:not([data-tag="operation"]) {
  display: none;
}

.page-news:has(#obs-cat-region:checked) .entry:not([data-tag="region"]) {
  display: none;
}

.page-news:has(#obs-cat-coop:checked) .entry:not([data-tag="coop"]) {
  display: none;
}

/* 触屏设备上摘要默认展开 */
@media (hover: none) {
  .page-news .entry-summary {
    max-height: none;
    margin-top: 9px;
    opacity: 1;
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-news .obs-hero-side {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-news .obs-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-news .obs-hero-side {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .page-news .obs-feature-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-news .obs-next-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-news .obs-vcards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-news .entry {
    grid-template-columns: 9px minmax(0, 1fr);
    gap: 0 12px;
  }

  .page-news .entry-seq {
    display: none;
  }

  .page-news .entry-media {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .obs-index-card,
  .page-news .obs-short,
  .page-news .obs-vcard,
  .page-news .obs-next-link,
  .page-news .entry {
    transition: none;
  }
}