.page-news {
  --news-rail-w: 232px;
  --news-line: 2px;
  display: block;
}

/* ============ 首屏 ============ */
.page-news .news-hero {
  padding: 28px 0 46px;
}

.page-news .news-hero__inner {
  max-width: 980px;
}

.page-news .news-display {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-head);
  font-size: clamp(32px, 5.6vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white-100);
}

.page-news .news-hero__lead {
  margin: 20px 0 0;
  max-width: 46em;
  font-size: 17.5px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-news .news-strip {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding: 16px 20px;
  border: var(--line);
  border-left: var(--news-line) solid var(--orange-500);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-news .news-strip__item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist-300);
}

.page-news .news-strip__item b {
  font-weight: 600;
  color: var(--cyan-300);
}

/* ============ 本期通栏 ============ */
.page-news .news-flash {
  padding: 0 0 62px;
}

.page-news .news-flash__panel {
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--paper-200);
  color: var(--ink-900);
}

.page-news .news-flash__media {
  margin: 0;
  min-height: 200px;
  background: var(--ink-700);
}

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

.page-news .news-flash__body {
  padding: 28px 22px 32px;
}

.page-news .news-flash__title {
  margin: 10px 0 0;
  color: var(--ink-900);
}

.page-news .news-flash__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-news .news-flash__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid rgba(31, 58, 107, 0.28);
}

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

.page-news .news-flash__num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-600);
  padding-top: 2px;
}

.page-news .news-flash__sub {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 650;
  color: var(--ink-900);
}

.page-news .news-flash__item-body p {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-700);
}

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

/* ============ 四类改动 ============ */
.page-news .change-types,
.page-news .rhythm,
.page-news .next {
  padding-top: 62px;
  padding-bottom: 62px;
}

.page-news .change-types__lead {
  margin: 14px 0 0;
  max-width: 46em;
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-news .change-types__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 34px;
}

.page-news .type-card {
  padding: 20px 20px 24px;
  border-top-width: 3px;
  border-top-style: solid;
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-news .type-card--merge { border-top-color: var(--cyan-500); }
.page-news .type-card--tune  { border-top-color: var(--cyan-300); }
.page-news .type-card--off   { border-top-color: var(--mist-300); }
.page-news .type-card--new   { border-top-color: var(--orange-500); }

.page-news .type-card__title {
  margin: 12px 0 0;
  color: var(--white-100);
}

.page-news .type-card__body {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--mist-300);
}

/* ============ 主体：期次 rail + 条目流 ============ */
.page-news .news-main {
  padding: 0 0 62px;
}

.page-news .news-main__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-news .news-rail {
  padding: 16px 16px 18px;
  border: var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-news .news-rail__media {
  margin: 0 0 16px;
  aspect-ratio: 2 / 3;
  max-height: 260px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--ink-700);
}

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

.page-news .news-rail__title {
  margin: 8px 0 0;
  color: var(--white-100);
}

.page-news .news-rail__grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  margin: 16px 0 0;
  padding: 0;
}

.page-news .news-rail__cell {
  display: block;
  padding: 8px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--mist-300);
  border: 1px solid var(--ink-600);
  border-radius: 6px;
  background: transparent;
}

.page-news .news-rail__cell--link {
  color: var(--cyan-300);
  border-color: rgba(0, 229, 212, 0.36);
  background: rgba(0, 229, 212, 0.07);
  transition: background 0.24s var(--ease), color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-news .news-rail__cell--link:hover,
.page-news .news-rail__cell--link:focus-visible {
  color: var(--ink-900);
  background: var(--cyan-500);
  border-color: var(--cyan-500);
}

.page-news .news-rail__cell--now {
  color: var(--ink-900);
  background: var(--orange-500);
  border-color: var(--orange-500);
}

.page-news .news-rail__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--ink-600);
}

/* 条目流 */
.page-news .news-stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  min-width: 0;
}

.page-news .news-stream__head {
  padding-bottom: 6px;
}

.page-news .news-stream__head .h2 {
  margin: 10px 0 0;
}

.page-news .news-entry {
  position: relative;
  padding: 20px 18px 22px 22px;
  border: var(--line);
  border-left: var(--news-line) solid var(--ink-600);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--ink-800);
  transition: transform 0.3s var(--ease), border-left-color 0.3s var(--ease);
}

.page-news .news-entry:hover {
  transform: translateY(-4px);
}

.page-news .news-entry--merge { border-left-color: var(--cyan-500); }
.page-news .news-entry--tune  { border-left-color: var(--cyan-300); }
.page-news .news-entry--off   { border-left-color: var(--mist-300); }
.page-news .news-entry--new   { border-left-color: var(--orange-500); }

.page-news .news-entry__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .news-entry__period {
  color: var(--mist-300);
}

.page-news .news-entry__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: 19px;
  line-height: 1.42;
  font-weight: 650;
  color: var(--white-100);
}

.page-news .news-entry__sum {
  margin: 10px 0 0;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.72;
  color: var(--mist-300);
}

.page-news .news-entry__toggle {
  margin-top: 14px;
  padding: 6px 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 0;
  border-bottom: 1px solid rgba(127, 246, 236, 0.4);
  background: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan-300);
  cursor: pointer;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-news .news-entry__toggle:hover,
.page-news .news-entry__toggle:focus-visible {
  color: var(--white-100);
  border-bottom-color: var(--white-100);
}

.page-news .news-entry__panel {
  margin-top: 16px;
  padding: 16px 18px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-sm);
  background: var(--ink-700);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mist-300);
}

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

.page-news .news-entry__panel p {
  margin: 0;
}

.page-news .news-stream__media {
  margin: 4px 0;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-700);
}

.page-news .news-stream__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .news-stream__caption {
  padding: 12px 16px 14px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist-300);
  border-top: 1px solid var(--ink-600);
}

/* 标签补充色 */
.page-news .tag--cyan-soft {
  color: var(--cyan-300);
  border: 1px solid rgba(127, 246, 236, 0.45);
  background: rgba(127, 246, 236, 0.1);
}

.page-news .tag--mist {
  color: var(--mist-300);
  border: 1px solid rgba(168, 187, 217, 0.45);
  background: rgba(168, 187, 217, 0.12);
}

/* ============ 更新节奏 ============ */
.page-news .rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
}

.page-news .rhythm__media {
  margin: 0;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-news .rhythm__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .rhythm__lead {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 17px;
  line-height: 1.72;
  color: var(--mist-300);
}

.page-news .rhythm__list {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-news .rhythm__item {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--ink-600);
}

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

.page-news .rhythm__item dt {
  color: var(--cyan-300);
  padding-top: 3px;
}

.page-news .rhythm__item dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.72;
  color: var(--mist-300);
}

/* ============ 下一期 ============ */
.page-news .next-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}

.page-news .next-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 22px 20px 24px;
  border-radius: var(--radius-sm);
  background: var(--ink-700);
}

.page-news .next-card__title {
  margin: 0;
  color: var(--white-100);
}

.page-news .next-card__body {
  margin: 0;
  flex: 1 1 auto;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--mist-300);
}

.page-news .next-card .btn {
  margin-top: 6px;
}

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-news .change-types__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

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

  .page-news .news-flash__body {
    padding: 36px 34px 40px;
  }

  .page-news .news-entry {
    padding: 24px 26px 26px 28px;
  }
}

@media (min-width: 900px) {
  .page-news .news-flash__panel {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .page-news .rhythm__grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 48px;
  }
}

@media (min-width: 980px) {
  .page-news .news-main__grid {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 96px;
    padding: 18px 16px 20px;
  }

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

  .page-news .news-stream {
    gap: 20px;
  }

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

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

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

@media (prefers-reduced-motion: reduce) {
  .page-news .news-entry,
  .page-news .news-rail__cell,
  .page-news .news-entry__toggle {
    transition: none;
  }

  .page-news .news-entry:hover {
    transform: none;
  }
}