/* ===== 品牌专栏 /column/ ===== */
.page-news {
  --news-gap: 32px;
  --news-rail-w: 132px;
  --news-aside-w: 236px;
  --news-sticky: 88px;
}

.page-news .news-crumb {
  padding: 24px 0 0;
}

.page-news .news-media {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--blue-050);
}

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

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: 36px 0 60px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

@media (min-width: 960px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 60px;
    align-items: start;
  }
}

.page-news .news-hero .sec-num {
  margin: 0 0 14px;
}

.page-news .news-hero h1 {
  margin: 0 0 18px;
  max-width: 15em;
  font-size: clamp(30px, 6vw, 48px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: var(--cold);
}

/* 站内检索面板 */
.page-news .news-find {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 2px solid var(--ink-900);
  border-radius: 0 0 2px 2px;
  padding: 22px 22px 20px;
  box-shadow: 0 1px 2px rgba(11, 27, 43, 0.05);
}

.page-news .news-find__head {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-700);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news .news-find__head .mono {
  text-transform: uppercase;
}

.page-news .news-find__intro {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cold);
}

.page-news .news-find__keys {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-find__keys li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-500);
  background: var(--blue-050);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 4px 9px;
}

.page-news .news-find__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-news .news-find__figure {
  margin: 18px 0 0;
}

/* ---------- 区块通用 ---------- */
.page-news .news-block {
  padding-top: 56px;
}

@media (min-width: 1024px) {
  .page-news .news-block {
    padding-top: 88px;
  }
}

.page-news .news-head {
  max-width: 46em;
}

.page-news .news-head h2 {
  margin: 12px 0 12px;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .news-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--cold);
}

.page-news .news-head .sec-num {
  margin: 0;
}

.page-news .news-head a {
  color: var(--ink-500);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-head a:hover {
  color: var(--signal-deep);
  border-bottom-color: var(--signal);
}

.page-news .news-showcase {
  margin: 0 0 26px;
}

.page-news .news-showcase figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
}

.page-news .news-showcase--timeline {
  margin: 0;
}

/* ---------- 四个栏目 ---------- */
.page-news .news-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

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

@media (min-width: 1080px) {
  .page-news .news-cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-news .news-cards li {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px;
  background: var(--white);
  transition: background var(--dur) var(--ease);
}

.page-news .news-cards li:hover {
  background: var(--blue-050);
}

.page-news .news-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--signal);
}

.page-news .news-cards h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
}

.page-news .news-cards p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cold);
}

.page-news .news-card__freq {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-500);
}

/* ---------- 三级层叠布局 ---------- */
.page-news .news-layout {
  margin-top: 32px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

@media (min-width: 1024px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr) var(--news-aside-w);
    gap: var(--news-gap);
    align-items: start;
  }
}

/* 左：栏目索引轨道 */
.page-news .news-rail {
  display: none;
}

@media (min-width: 1024px) {
  .page-news .news-rail {
    display: block;
    position: sticky;
    top: var(--news-sticky);
  }
}

.page-news .news-rail__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-700);
}

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

.page-news .news-rail__list li {
  display: flex;
  gap: 9px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.page-news .news-rail__list > li > .mono {
  flex: none;
  padding-top: 2px;
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--signal);
}

.page-news .news-rail__list strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-news .news-rail__list em {
  display: block;
  margin-top: 3px;
  font-style: normal;
  font-size: 12px;
  line-height: 1.55;
  color: var(--cold);
}

/* 中：条目列表 */
.page-news .news-list {
  border-top: 1px solid var(--line);
}

.page-news .news-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.page-news .news-item:hover {
  border-bottom-color: var(--ink-500);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.page-news .news-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--blue-050);
  color: var(--ink-700);
}

.page-news .news-item[data-column="version"] .news-tag {
  background: var(--signal-050);
  border-color: rgba(228, 99, 28, 0.3);
  color: var(--signal-deep);
}

.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--cold);
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

.page-news .news-item:hover .news-item__title {
  color: var(--ink-500);
}

.page-news .news-item__excerpt {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--cold);
}

/* 右：旁注 */
.page-news .news-aside {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

@media (min-width: 1024px) {
  .page-news .news-aside {
    border-left: 1px solid var(--line);
    padding-left: 26px;
  }
}

.page-news .news-aside__block {
  border-top: 2px solid var(--ink-900);
  padding-top: 14px;
}

.page-news .news-aside__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-700);
}

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

.page-news .news-picks li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.62;
  color: var(--text);
}

.page-news .news-picks li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .news-path + .news-path {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.page-news .news-path__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-news .news-path__list {
  list-style: none;
  counter-reset: np;
  margin: 0;
  padding: 0;
}

.page-news .news-path__list li {
  position: relative;
  counter-increment: np;
  padding-left: 22px;
  margin-bottom: 9px;
  font-size: 13px;
  line-height: 1.68;
  color: var(--cold);
}

.page-news .news-path__list li:last-child {
  margin-bottom: 0;
}

.page-news .news-path__list li::before {
  content: counter(np);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--signal);
}

.page-news .news-path__list a {
  color: var(--ink-500);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-path__list a:hover {
  color: var(--signal-deep);
  border-bottom-color: var(--signal);
}

.page-news .news-stats {
  margin: 0;
}

.page-news .news-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-stat:last-child {
  border-bottom: 0;
}

.page-news .news-stat dt {
  font-size: 13px;
  color: var(--cold);
}

.page-news .news-stat dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-700);
}

.page-news .news-aside__figure {
  margin: 0;
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

@media (min-width: 900px) {
  .page-news .news-rhythm__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
  }
}

.page-news .news-rhythm__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-news .news-rhythm__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cold);
}

.page-news .news-rhythm__list li:last-child {
  margin-bottom: 0;
}

.page-news .news-rhythm__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--signal);
}

.page-news .news-rhythm__list a {
  color: var(--ink-500);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-rhythm__list a:hover {
  color: var(--signal-deep);
  border-bottom-color: var(--signal);
}

/* ---------- 提问 ---------- */
.page-news .news-ask {
  margin-top: 72px;
  padding: 60px 0;
  background: var(--ink-900);
}

@media (min-width: 1024px) {
  .page-news .news-ask {
    margin-top: 88px;
    padding: 84px 0;
  }
}

.page-news .news-ask__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

@media (min-width: 860px) {
  .page-news .news-ask__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 48px;
  }
}

.page-news .news-ask .sec-num {
  margin: 0;
  color: #F08A4B;
}

.page-news .news-ask h2 {
  margin: 12px 0 12px;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.25;
  font-weight: 800;
  color: #FFFFFF;
}

.page-news .news-ask p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--blue-300);
}

.page-news .news-ask__action {
  display: flex;
}

.page-news .news-ask__action .btn {
  white-space: nowrap;
}

/* ---------- 窄屏收尾 ---------- */
@media (max-width: 520px) {
  .page-news .news-hero {
    padding: 28px 0 48px;
  }

  .page-news .news-find {
    padding: 18px 16px 16px;
  }

  .page-news .news-cards li {
    padding: 18px 16px;
  }

  .page-news .news-item__title {
    font-size: 16px;
  }

  .page-news .news-ask {
    padding: 48px 0;
  }
}

.page-news img {
  max-width: 100%;
  height: auto;
}