.page-news {
  --news-gap: 20px;
  --news-tier: var(--celadon);
  --news-ease: var(--ease);
  padding-block: clamp(20px, 4vw, 34px) clamp(56px, 9vw, 108px);
}

/* ---------- 栏目头 ---------- */
.page-news .news-mast {
  padding-bottom: clamp(30px, 5vw, 60px);
}

.page-news .news-mast .breadcrumb {
  margin-bottom: 22px;
}

.page-news .news-mast__grid {
  margin-top: 6px;
}

.page-news .news-mast__lead .eyebrow {
  margin: 0 0 12px;
}

.page-news .news-mast__lead .display {
  margin: 0 0 16px;
  color: var(--paper);
}

.page-news .news-mast__lead .lede {
  max-width: 46ch;
}

.page-news .news-mast__figure {
  margin: 26px 0 0;
  overflow: hidden;
  background: linear-gradient(150deg, rgba(23, 191, 163, 0.14), rgba(233, 169, 60, 0.07) 62%, rgba(10, 26, 42, 0));
}

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

.page-news .mast-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-news .mast-facts__item {
  min-width: 0;
}

.page-news .mast-facts dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--scale);
}

.page-news .mast-facts__val {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.01em;
}

/* ---------- 双栏：刻度轨 + 正文 ---------- */
.page-news .news-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
}

.page-news .tick-rail__head {
  margin: 0 0 10px;
}

.page-news .tick-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .tick-list::-webkit-scrollbar {
  display: none;
}

.page-news .tick-list li {
  flex: 0 0 auto;
}

.page-news .tick-link {
  display: block;
  position: relative;
  padding: 9px 14px;
  font-size: 13px;
  line-height: 1.3;
  white-space: nowrap;
  color: var(--scale);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--glass);
  transition: color var(--dur) var(--news-ease), border-color var(--dur) var(--news-ease);
}

.page-news .tick-link:hover,
.page-news .tick-link:focus-visible {
  color: var(--paper);
  border-color: var(--celadon);
}

.page-news .tick-link__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--celadon);
  margin-right: 8px;
}

/* ---------- 章节 ---------- */
.page-news .news-section {
  padding-top: clamp(38px, 6vw, 68px);
  scroll-margin-top: 88px;
}

.page-news .news-section:first-child {
  padding-top: clamp(24px, 4vw, 40px);
}

.page-news .news-section .section__head {
  max-width: 68ch;
}

.page-news .news-section .section__head .prose {
  color: var(--text);
}

/* ---------- 分类说明 ---------- */
.page-news .classify-figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(154, 166, 180, 0.12) 0 1px, transparent 1px 64px),
    var(--navy-mid);
  overflow: hidden;
}

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

.page-news .cat-cards {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .cat-card {
  position: relative;
  background: var(--navy-deep);
  padding: 22px 18px 24px;
  border-top: 2px solid var(--news-tier);
}

.page-news .cat-card:nth-child(1) { --news-tier: var(--celadon); }
.page-news .cat-card:nth-child(2) { --news-tier: var(--amber); }
.page-news .cat-card:nth-child(3) { --news-tier: var(--terracotta); }
.page-news .cat-card:nth-child(4) { --news-tier: var(--celadon-deep); }
.page-news .cat-card:nth-child(5) { --news-tier: var(--scale); }

.page-news .cat-card__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--news-tier);
}

.page-news .cat-card__name {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .cat-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 标签页 ---------- */
.page-news .tabs__list {
  display: flex;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0 0 12px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--line);
}

.page-news .tabs__list::-webkit-scrollbar {
  display: none;
}

.page-news .tabs__tab {
  flex: 0 0 auto;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  color: var(--scale);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.3;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--news-ease), background var(--dur) var(--news-ease), border-color var(--dur) var(--news-ease);
}

.page-news .tabs__tab:hover {
  color: var(--paper);
  border-color: var(--line-strong);
}

.page-news .tabs__tab:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-news .tabs__tab[aria-selected="true"] {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--navy);
  font-weight: 700;
}

.page-news .tabs__panel {
  padding-top: 4px;
}

.page-news .tabs__panel[hidden] {
  display: none;
}

.page-news .tabs__panel:focus-visible {
  outline: 2px solid var(--celadon);
  outline-offset: 4px;
}

/* ---------- 日志条目 ---------- */
.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .log-item {
  position: relative;
  padding: 24px 0 22px;
  border-bottom: 1px solid var(--line);
}

.page-news .log-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--celadon);
  transition: width var(--scan) var(--news-ease);
}

.page-news .log-item:hover::before,
.page-news .log-item:focus-within::before {
  width: 100%;
}

.page-news .log-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-news .log-item__batch {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--amber);
}

.page-news .log-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.3vw, 1.45rem);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .log-item__summary {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-news .log-item__more {
  margin-top: 12px;
}

.page-news .log-item__more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--celadon);
  cursor: pointer;
  list-style: none;
}

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

.page-news .log-item__more summary::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--dur) var(--news-ease);
}

.page-news .log-item__more[open] summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-news .log-item__more summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-news .log-item__more p {
  margin: 10px 0 0;
  max-width: 62ch;
  padding-left: 14px;
  border-left: 2px solid rgba(23, 191, 163, 0.42);
  font-size: 14px;
  line-height: 1.85;
  color: var(--scale);
}

/* ---------- 版本线 ---------- */
.page-news .version-figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background: linear-gradient(120deg, rgba(233, 169, 60, 0.12), rgba(10, 26, 42, 0));
  overflow: hidden;
}

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

.page-news .version-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-news .version-node {
  position: relative;
  padding: 20px 0 20px 18px;
  border-top: 1px solid var(--line);
}

.page-news .version-node:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .version-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--news-tier);
}

.page-news .version-node:nth-child(1) { --news-tier: var(--celadon); }
.page-news .version-node:nth-child(2) { --news-tier: var(--amber); }
.page-news .version-node:nth-child(3) { --news-tier: var(--terracotta); }
.page-news .version-node:nth-child(4) { --news-tier: var(--celadon-deep); }

.page-news .version-node__tag {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-news .version-node__body {
  margin-top: 8px;
}

.page-news .version-node__name {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--celadon);
}

.page-news .version-node__body p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 城市生效 ---------- */
.page-news .region-figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(0deg, rgba(154, 166, 180, 0.1) 0 1px, transparent 1px 48px),
    var(--navy-mid);
  overflow: hidden;
}

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

.page-news .region-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .region-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .region-row__name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-news .region-row__batch {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--amber);
}

.page-news .region-row__note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--scale);
}

/* ---------- 行业方案 ---------- */
.page-news .industry-grid {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .industry-grid li {
  background: var(--navy-deep);
  padding: 15px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
}

.page-news .industry-notes {
  margin-top: 22px;
  display: grid;
  gap: 14px;
}

.page-news .industry-notes__item {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-news .industry-notes__key {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

/* ---------- 回溯与通知 ---------- */
.page-news .archive-panel {
  margin-top: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: clamp(22px, 4vw, 38px);
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line-strong);
}

.page-news .archive-panel__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .archive-panel p {
  margin: 0 0 12px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .archive-panel p:last-child {
  margin-bottom: 0;
}

.page-news .archive-panel__aside {
  padding-top: 22px;
  border-top: 1px solid rgba(18, 48, 74, 0.22);
}

.page-news .archive-panel .btn--solid {
  margin-top: 4px;
}

.page-news .archive-panel__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 16px;
}

.page-news .archive-panel__links a {
  font-size: 14px;
  color: var(--celadon-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(12, 127, 108, 0.4);
  padding-bottom: 2px;
}

.page-news .archive-panel__links a:hover,
.page-news .archive-panel__links a:focus-visible {
  border-bottom-color: var(--celadon-deep);
}

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

  .page-news .region-row {
    grid-template-columns: 96px 116px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-news {
    --news-gap: 40px;
  }

  .page-news .news-mast__figure {
    transform: translateY(16px);
  }

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

  .page-news .version-node {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-news .version-node__body {
    margin-top: 2px;
  }

  .page-news .industry-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-news .archive-panel {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 40px;
  }

  .page-news .archive-panel__aside {
    padding-top: 0;
    padding-left: 32px;
    border-top: 0;
    border-left: 1px solid rgba(18, 48, 74, 0.22);
  }
}

@media (min-width: 1024px) {
  .page-news .news-flow {
    grid-template-columns: 186px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 58px);
  }

  .page-news .tick-rail {
    position: sticky;
    top: 40px;
    align-self: start;
  }

  .page-news .tick-rail__head {
    margin-bottom: 14px;
  }

  .page-news .tick-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .tick-list li {
    flex: none;
    border-left: 1px solid var(--line);
  }

  .page-news .tick-link {
    border: 0;
    background: transparent;
    padding: 10px 0 10px 15px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-news .tick-link::before {
    content: "";
    position: absolute;
    left: -1px;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 0;
    background: var(--celadon);
    transition: height var(--scan) var(--news-ease);
  }

  .page-news .tick-link:hover::before,
  .page-news .tick-link:focus-visible::before {
    height: 100%;
  }

  .page-news .cat-cards {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .news-section:first-child {
    padding-top: 0;
  }
}

@media (min-width: 1180px) {
  .page-news .news-flow {
    grid-template-columns: 200px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .log-item::before,
  .page-news .tick-link::before {
    transition: none;
  }

  .page-news .log-item:hover::before,
  .page-news .log-item:focus-within::before {
    width: 0;
  }

  .page-news .log-item__more summary::after,
  .page-news .tick-link,
  .page-news .tabs__tab {
    transition: opacity var(--dur) var(--news-ease);
  }

  .page-news .news-mast__figure {
    transform: none;
  }
}