.page-news {
  --news-rule: var(--orange);
  --news-version: var(--violet);
  --news-replay: var(--cyan);
  --news-community: var(--lime);
  --news-industry: var(--slate);
  padding-bottom: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(900px 420px at 84% -8%, rgba(123, 77, 255, 0.18), transparent 66%),
    radial-gradient(720px 380px at 4% 10%, rgba(34, 211, 238, 0.10), transparent 70%);
  background-repeat: no-repeat;
}

.page-news a {
  color: inherit;
}

/* ---------- 首屏声明 ---------- */
.page-news .news-masthead {
  padding-top: clamp(18px, 3vw, 32px);
  padding-bottom: clamp(20px, 3vw, 30px);
}

.page-news .news-masthead h1 {
  margin: 10px 0 0;
  max-width: 14em;
  font-family: var(--font-display);
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
  text-shadow: 0 0 26px rgba(123, 77, 255, 0.3);
}

.page-news .news-masthead .lede {
  margin-top: 14px;
  max-width: 62ch;
  color: var(--slate);
}

.page-news .masthead-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .masthead-stats li {
  flex: 1 1 148px;
  padding: 12px 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(27, 23, 48, 0.62);
  box-shadow: var(--shadow-panel);
}

.page-news .masthead-stats .data-figure {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
}

.page-news .stat-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 分类胶囊带 ---------- */
.page-news .filter-band {
  display: flex;
  gap: 9px;
  overflow-x: auto;
  padding: 6px 2px 18px;
  scrollbar-width: thin;
  scrollbar-color: var(--violet) transparent;
}

.page-news .filter-band::-webkit-scrollbar {
  height: 4px;
}

.page-news .filter-band::-webkit-scrollbar-thumb {
  border-radius: var(--radius-pill);
  background: var(--violet);
}

.page-news .filter-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(27, 23, 48, 0.78);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-news .filter-pill:hover,
.page-news .filter-pill:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.4), 0 12px 26px -20px rgba(34, 211, 238, 0.9);
}

.page-news .filter-pill[aria-current] {
  border-color: var(--orange);
  background: rgba(255, 138, 61, 0.16);
  color: var(--orange-soft);
}

/* ---------- 双栏主体 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding-bottom: clamp(30px, 5vw, 48px);
}

.page-news .news-rail {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(27, 23, 48, 0.9), rgba(18, 15, 36, 0.86));
  box-shadow: var(--shadow-panel);
}

.page-news .rail-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 3.4vw, 23px);
  line-height: 1.25;
  color: var(--paper);
}

.page-news .rail-text {
  margin: 10px 0 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .route-list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .route-list::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 8px;
  bottom: 26px;
  width: 1px;
  background: linear-gradient(180deg, var(--violet), var(--cyan) 62%, transparent);
}

.page-news .route-step {
  position: relative;
  padding: 0 0 22px 40px;
}

.page-news .route-step:last-child {
  padding-bottom: 0;
}

.page-news .route-step__idx {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border: 1px solid var(--violet);
  border-radius: 50%;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-news .route-step__title {
  margin: 2px 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .route-step__text {
  margin: 0 0 6px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-news .route-step__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(34, 211, 238, 0.5);
}

.page-news .route-step__link:hover,
.page-news .route-step__link:focus-visible {
  color: var(--orange-soft);
  border-bottom-color: var(--orange);
}

.page-news .rail-foot {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .rail-foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 更新流 ---------- */
.page-news .news-stream {
  display: grid;
  gap: 11px;
}

.page-news .stream-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 2px 2px 6px;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .stream-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 3.2vw, 24px);
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-news .stream-head .coord {
  margin: 0;
  font-size: 11.5px;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .news-item {
  position: relative;
  padding: 16px 18px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(27, 23, 48, 0.88), rgba(18, 15, 36, 0.9));
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--accent, var(--slate));
  opacity: 0.9;
}

.page-news .news-item[data-kind="rule"] {
  --accent: var(--news-rule);
}

.page-news .news-item[data-kind="version"] {
  --accent: var(--news-version);
}

.page-news .news-item[data-kind="replay"] {
  --accent: var(--news-replay);
}

.page-news .news-item[data-kind="community"] {
  --accent: var(--news-community);
}

.page-news .news-item[data-kind="industry"] {
  --accent: var(--news-industry);
}

.page-news .news-item:hover {
  transform: translateY(-2px);
  border-color: var(--line);
  box-shadow: var(--shadow-lift);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
}

.page-news .news-item__meta .coord {
  font-size: 11.5px;
  color: var(--slate);
}

.page-news .news-item__title {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-news .news-item__title a {
  color: var(--paper);
  text-decoration: none;
  background-image: linear-gradient(var(--accent, var(--cyan)), var(--accent, var(--cyan)));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: 0 100%;
  transition: background-size 0.22s ease;
}

.page-news .news-item__title a:hover,
.page-news .news-item__title a:focus-visible {
  background-size: 100% 1px;
}

.page-news .news-item__text {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 专题区块 ---------- */
.page-news .news-topic {
  padding: clamp(24px, 4vw, 38px) clamp(18px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(27, 23, 48, 0.72), rgba(11, 13, 20, 0.86));
  box-shadow: var(--shadow-panel);
  margin-bottom: clamp(16px, 2.6vw, 24px);
  scroll-margin-top: calc(var(--header-h) + 18px);
}

.page-news .topic-head {
  max-width: 68ch;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-news .topic-head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 4vw, 32px);
  line-height: 1.18;
  color: var(--paper);
}

.page-news .topic-head .lede {
  margin: 10px 0 0;
  font-size: 15px;
  color: var(--slate);
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 26px);
  align-items: start;
}

.page-news .topic-media .media-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

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

.page-news .topic-note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

.page-news .news-topic .btn {
  margin-top: 16px;
}

/* ---------- 修订列表 ---------- */
.page-news .revision-list {
  border-top: 1px solid var(--line-soft);
}

.page-news .revision-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-news .revision-ver {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
}

.page-news .revision-when {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--slate);
}

.page-news .revision-what {
  font-size: 13.8px;
  line-height: 1.65;
  color: var(--paper);
}

/* ---------- 版本列表 ---------- */
.page-news .version-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-news .version-list li {
  position: relative;
  padding-left: 16px;
  border-left: 2px solid rgba(123, 77, 255, 0.55);
}

.page-news .version-list h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .version-list p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 回放说明 ---------- */
.page-news .plain-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-news .plain-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.8px;
  line-height: 1.68;
  color: var(--slate);
}

.page-news .plain-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--cyan);
}

/* ---------- 新手四步 ---------- */
.page-news .step-cards {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .step-cards li {
  display: grid;
  grid-template-columns: 30px 1fr;
  column-gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(13, 59, 69, 0.42);
}

.page-news .step-cards__i {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--lime);
}

.page-news .step-cards strong {
  font-size: 14.5px;
  color: var(--paper);
}

.page-news .step-cards p {
  grid-column: 2;
  margin: 3px 0 0;
  font-size: 13.4px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 行业观察 ---------- */
.page-news .industry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-news .industry-card {
  padding: 18px 18px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: rgba(244, 232, 208, 0.05);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-news .industry-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 138, 61, 0.45);
}

.page-news .industry-card h3 {
  margin: 8px 0 8px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .industry-card p {
  margin: 0;
  font-size: 13.6px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 归档折叠 ---------- */
.page-news .archive-list {
  display: grid;
  gap: 9px;
}

.page-news .archive-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: rgba(18, 15, 36, 0.72);
  overflow: hidden;
}

.page-news .archive-item[open] {
  border-color: rgba(123, 77, 255, 0.5);
}

.page-news .archive-summary {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s ease;
}

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

.page-news .archive-summary:hover {
  background: rgba(123, 77, 255, 0.12);
}

.page-news .archive-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-news .archive-item[open] .archive-summary::after {
  content: "–";
  color: var(--orange);
}

.page-news .archive-ver {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .archive-when {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--slate);
}

.page-news .archive-count {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--orange-soft);
}

.page-news .archive-notes {
  margin: 0;
  padding: 0 16px 16px 34px;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-news .archive-notes li {
  position: relative;
  font-size: 13.6px;
  line-height: 1.68;
  color: var(--slate);
}

.page-news .archive-notes li::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--violet);
}

.page-news .archive-foot {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .archive-foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 焦点态 ---------- */
.page-news a:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-news .topic-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-news .news-topic--flip .topic-media {
    order: 2;
  }

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

  .page-news .revision-row {
    grid-template-columns: 72px 78px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 940px) {
  .page-news .news-layout {
    grid-template-columns: minmax(250px, 300px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-news .industry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .news-topic--flip .topic-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

@media (max-width: 420px) {
  .page-news .stream-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .page-news .news-item {
    padding: 15px 15px 16px;
  }

  .page-news .news-topic {
    padding: 20px 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .filter-pill,
  .page-news .industry-card,
  .page-news .news-item__title a {
    transition: none;
  }

  .page-news .news-item:hover,
  .page-news .filter-pill:hover,
  .page-news .industry-card:hover {
    transform: none;
  }
}