.page-news {
  --news-hover: rgba(244, 247, 250, 0.03);
  --news-hover-strong: rgba(244, 247, 250, 0.055);
  --news-text: rgba(244, 247, 250, 0.82);
  --news-rule: var(--line);
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  display: block;
}

.page-news a:focus-visible,
.page-news button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* 首屏 */
.page-news .news-head {
  padding: clamp(32px, 5vw, 64px) 0 clamp(30px, 4vw, 48px);
}

.page-news .news-head__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(38px, 8vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-news .news-head__lede {
  margin: 22px 0 0;
  max-width: 36em;
  font-size: 17px;
  line-height: 1.9;
  color: var(--news-text);
}

.page-news .news-head__lines {
  margin-top: 18px;
  max-width: 44em;
}

.page-news .news-head__lines p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--fog);
}

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

/* 分类索引 */
.page-news .cat-index {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-news .cat-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--news-rule);
  border-left: 1px solid var(--news-rule);
}

.page-news .cat-index__item {
  display: flex;
  min-width: 0;
}

.page-news .cat-index__link {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 12px 16px;
  border-right: 1px solid var(--news-rule);
  border-bottom: 1px solid var(--news-rule);
  color: var(--fog);
  text-decoration: none;
  transition: background var(--step) var(--ease), color var(--step) var(--ease);
}

.page-news .cat-index__link:hover {
  background: var(--news-hover-strong);
  color: var(--white);
}

.page-news .cat-index__num {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.page-news .cat-index__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 15px;
  line-height: 1.3;
  color: var(--white);
}

/* 栏目头图 */
.page-news .news-banner {
  margin: clamp(28px, 4vw, 48px) 0 0;
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--news-rule);
}

.page-news .news-banner__cap {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

/* 分区与列表 */
.page-news .section {
  padding-block: clamp(44px, 7vw, 92px);
}

.page-news .brief-group {
  margin-top: clamp(36px, 5vw, 60px);
}

.page-news .brief-group:first-child {
  margin-top: 0;
}

.page-news .brief-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--news-rule);
}

.page-news .brief-group__name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.3;
  color: var(--white);
}

.page-news .brief-group__count {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

.page-news .brief {
  position: relative;
  padding: 26px 0 28px 14px;
  border-bottom: 1px solid var(--news-rule);
  transition: background var(--step) var(--ease);
}

.page-news .brief::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  height: 22px;
  width: 2px;
  background: var(--cyan);
  opacity: 0;
  transform: scaleY(0.35);
  transform-origin: top center;
  transition: opacity var(--step) var(--ease), transform var(--step) var(--ease);
}

.page-news .brief:hover {
  background: var(--news-hover);
}

.page-news .brief:hover::before,
.page-news .brief:focus-within::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-news .brief__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

.page-news .brief__cat {
  padding: 3px 8px;
  border: 1px solid var(--news-rule);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.page-news .brief__time {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

.page-news .brief__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 25px);
  line-height: 1.38;
  color: var(--white);
}

.page-news .brief__sum {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--news-text);
}

.page-news .brief__body {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--fog);
}

.page-news .brief__grid {
  display: grid;
  gap: 22px;
}

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

.page-news .brief__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--news-rule);
}

.page-news .brief__cap {
  display: block;
  margin-top: 9px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fog);
}

/* 专题系列 */
.page-news .series {
  list-style: none;
  margin: clamp(32px, 4vw, 52px) 0 0;
  padding: 0;
}

.page-news .series__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 26px 0;
  border-top: 1px solid var(--news-rule);
}

.page-news .series__item:last-child {
  border-bottom: 1px solid var(--news-rule);
}

.page-news .series__num {
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-news .series__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.35;
  color: var(--white);
}

.page-news .series__desc {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--fog);
}

.page-news .series__meta {
  margin: 12px 0 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

/* 更新节奏 */
.page-news .cadence {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4vw, 44px);
  background: var(--news-rule);
  border: 1px solid var(--news-rule);
}

.page-news .cadence__item {
  background: var(--navy);
  padding: 22px 18px 24px;
}

.page-news .cadence__num {
  display: block;
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}

.page-news .cadence__unit {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.page-news .cadence__label {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
}

.page-news .cadence__more {
  margin-top: clamp(26px, 4vw, 40px);
  max-width: 62ch;
}

.page-news .cadence__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--news-text);
}

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

.page-news .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--news-rule);
  transition: border-color var(--step) var(--ease);
}

.page-news .inline-link:hover {
  border-color: var(--cyan);
}

/* 栅格与响应式 */
@media (min-width: 720px) {
  .page-news .cat-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .cadence {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .brief--figure .brief__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }

  .page-news .series__item {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    padding: 30px 0;
  }

  .page-news .brief {
    padding: 30px 0 32px 16px;
  }

  .page-news .brief::before {
    top: 32px;
    height: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .brief,
  .page-news .brief::before,
  .page-news .cat-index__link,
  .page-news .inline-link {
    transition: none;
  }
}