.page-news {
  --news-gap: 24px;
  --news-rule: 1px solid var(--ink-700);
  display: block;
  background: var(--ink-950);
  color: var(--paper-100);
  font-family: var(--font-body);
  padding-bottom: 96px;
  overflow-x: clip;
}

.page-news .container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 20px;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 24px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray-400);
}

.page-news .breadcrumb__item {
  color: var(--gray-400);
  text-decoration: none;
}

.page-news .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--gold-500);
}

.page-news .breadcrumb__item:last-child {
  color: var(--gold-300);
}

.page-news .breadcrumb a.breadcrumb__item:hover {
  color: var(--cyan-400);
}

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  padding-block: 32px 44px;
}

.page-news .news-kicker {
  display: inline-block;
  margin: 0;
  padding: 5px 12px;
  border: 1px solid var(--magenta-500);
  color: var(--magenta-500);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news .news-title {
  margin: 20px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-news .news-title br {
  display: none;
}

.page-news .news-lead {
  max-width: 60ch;
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.8;
  color: var(--paper-100);
}

.page-news .news-masthead__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--ink-700);
}

.page-news .news-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .news-stat__num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold-300);
}

.page-news .news-stat__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}

.page-news .news-masthead::after {
  content: "";
  display: block;
  height: 6px;
  margin-top: 32px;
  background: repeating-linear-gradient(
    90deg,
    var(--gold-500) 0 22px,
    transparent 22px 32px
  );
  opacity: 0.6;
}

/* ---------- 章节头 ---------- */
.page-news .section__head {
  max-width: 68ch;
  margin-bottom: 32px;
}

.page-news .section__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-500);
  margin-bottom: 10px;
}

.page-news .section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-news .section__lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray-400);
}

/* ---------- 本期主打大卡 ---------- */
.page-news .feature-card {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--gold-500);
  background: var(--ink-850);
  box-shadow: var(--shadow-hard);
  position: relative;
}

.page-news .feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--magenta-500), var(--gold-500));
  z-index: 2;
}

.page-news .feature-card__media {
  overflow: hidden;
}

.page-news .feature-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.05);
}

.page-news .feature-card__body {
  padding: 24px 22px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-news .feature-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.3;
  color: var(--paper-100);
}

.page-news .feature-card__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray-400);
}

.page-news .feature-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--ink-700);
}

.page-news .feature-card__meta > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .feature-card__meta dt {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray-400);
  margin: 0;
}

.page-news .feature-card__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--gold-300);
}

.page-news .feature-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

/* ---------- 标签 ---------- */
.page-news .tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid currentColor;
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.4;
  white-space: nowrap;
}

.page-news .tag--gold { color: var(--gold-500); }
.page-news .tag--cyan { color: var(--cyan-400); }
.page-news .tag--magenta { color: var(--magenta-500); }
.page-news .tag--amber { color: var(--amber-500); }

/* ---------- 专题卡片流 ---------- */
.page-news .stream-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-news .stream-rail {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 14px;
  border-bottom: var(--news-rule);
  scrollbar-width: thin;
}

.page-news .stream-rail__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gray-400);
  text-decoration: none;
  white-space: nowrap;
}

.page-news .stream-rail__item::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--gold-500);
  flex: none;
}

.page-news .stream-rail__item:hover,
.page-news .stream-rail__item:focus-visible {
  color: var(--gold-300);
}

.page-news .stream-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  min-width: 0;
}

.page-news .topic-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--ink-700);
  background: linear-gradient(180deg, var(--ink-850) 0%, var(--ink-950) 100%);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  min-width: 0;
}

.page-news .topic-card:hover,
.page-news .topic-card:focus-within {
  border-color: var(--cyan-400);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.page-news .topic-card--lead {
  border-color: var(--gold-500);
  margin-bottom: -16px;
  z-index: 2;
}

.page-news .topic-card__media {
  margin: -22px -22px 4px;
  overflow: hidden;
  border-bottom: 1px solid var(--ink-700);
}

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

.page-news .topic-card__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .topic-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray-400);
}

.page-news .topic-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  color: var(--paper-100);
}

.page-news .topic-card--lead .topic-card__title {
  font-size: clamp(21px, 2.4vw, 27px);
}

.page-news .topic-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray-400);
}

.page-news .topic-card__time {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--ink-700);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}

/* ---------- 版本记录 ---------- */
.page-news .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--news-rule);
}

.page-news .version-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0;
  border-bottom: var(--news-rule);
  position: relative;
}

.page-news .version-item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 40px;
  height: 2px;
  background: var(--gold-500);
}

.page-news .version-item__no {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold-300);
}

.page-news .version-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper-100);
}

.page-news .version-item__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray-400);
}

/* ---------- 类目观察 ---------- */
.page-news .insight-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-news .insight-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px;
  border: 1px solid var(--ink-700);
  border-left: 3px solid var(--jade-700);
  background: var(--ink-850);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-news .insight-card:hover {
  border-left-color: var(--cyan-400);
  transform: translateY(-3px);
}

.page-news .insight-card__media {
  margin: -24px -22px 6px;
  overflow: hidden;
  border-bottom: 1px solid var(--ink-700);
}

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

.page-news .insight-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.35;
  color: var(--paper-100);
}

.page-news .insight-card__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray-400);
}

.page-news .insight-card__route {
  margin: auto 0 0;
  padding: 12px 0 0;
  border-top: 1px dashed var(--ink-700);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--cyan-400);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-stay {
  padding: 30px 22px 32px;
  border: 1px solid var(--gold-500);
  box-shadow: var(--shadow-hard);
}

.page-news .news-stay__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.25;
  color: var(--ink-950);
}

.page-news .news-stay__lead {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-850);
}

.page-news .news-stay__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-stay__item {
  display: flex;
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-850);
}

.page-news .news-stay__dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  background: var(--magenta-500);
  transform: rotate(45deg);
}

.page-news .news-stay__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 640px) {
  .page-news .container {
    padding-inline: 32px;
  }

  .page-news .news-title br {
    display: inline;
  }

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

  .page-news .topic-card--lead {
    grid-column: 1 / -1;
  }

  .page-news .news-stay {
    padding: 40px 36px 42px;
  }

  .page-news .news-stay__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 32px;
  }
}

@media (min-width: 900px) {
  .page-news .container {
    padding-inline: 48px;
  }

  .page-news .news-masthead {
    padding-block: 40px 56px;
  }

  .page-news .feature-card {
    grid-template-columns: 1.15fr 1fr;
  }

  .page-news .feature-card__body {
    padding: 34px 30px 36px;
  }

  .page-news .stream-layout {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-news .stream-rail {
    flex-direction: column;
    gap: 26px;
    overflow: visible;
    border-bottom: 0;
    border-right: 1px solid var(--ink-700);
    padding: 4px 16px 4px 0;
    position: sticky;
    top: 28px;
  }

  .page-news .stream-rail__item {
    align-items: flex-start;
  }

  .page-news .stream-rail__item span {
    writing-mode: vertical-rl;
    letter-spacing: 0.22em;
    line-height: 1;
  }

  .page-news .stream-rail__item::before {
    display: none;
  }

  .page-news .stream-rail__item::after {
    content: "";
    width: 3px;
    height: 22px;
    background: var(--gold-500);
    flex: none;
    transition: background-color 0.25s ease, height 0.25s ease;
  }

  .page-news .stream-rail__item:hover::after,
  .page-news .stream-rail__item:focus-visible::after {
    background: var(--cyan-400);
    height: 36px;
  }

  .page-news .version-item {
    grid-template-columns: 110px minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 10px 28px;
    padding: 26px 0;
  }

  .page-news .version-item__no {
    padding-top: 3px;
  }

  .page-news .insight-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 26px;
  }

  .page-news .insight-card:nth-child(1) {
    grid-column: span 5;
  }

  .page-news .insight-card:nth-child(2) {
    grid-column: span 7;
  }

  .page-news .insight-card:nth-child(3) {
    grid-column: 4 / span 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-card,
  .page-news .insight-card,
  .page-news .stream-rail__item::after {
    transition: none;
  }

  .page-news .topic-card:hover,
  .page-news .topic-card:focus-within,
  .page-news .insight-card:hover {
    transform: none;
  }
}