.page-news {
  --news-gap: 32px;
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-news__hero {
  position: relative;
  padding: 36px 0 0;
  overflow: hidden;
}
.page-news__hero::after {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: 68vw;
  height: 68vw;
  max-width: 900px;
  max-height: 900px;
  background: radial-gradient(circle at 55% 45%, rgba(47, 243, 208, 0.11), transparent 62%);
  pointer-events: none;
  z-index: 0;
}
.page-news__hero .shell {
  position: relative;
  z-index: 1;
}
.page-news__title {
  margin: 16px 0 0;
  font-size: clamp(40px, 11.5vw, 118px);
  line-height: 0.92;
  letter-spacing: -0.04em;
  font-weight: 900;
}
.page-news__title em {
  font-style: normal;
  background: var(--grad-field);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-news__lede {
  max-width: 620px;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-2);
}
.page-news__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-2);
  letter-spacing: 0.02em;
}
.page-news__facts-num {
  margin-right: 6px;
  font-weight: 600;
  color: var(--cyan);
}

/* ---------- 横向栏目标签带 ---------- */
.page-news__tagband {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(76, 141, 255, 0.09), rgba(5, 7, 15, 0) 58%);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.page-news__tagband::-webkit-scrollbar {
  height: 0;
}
.page-news__tagband-inner {
  display: flex;
  min-width: max-content;
  align-items: stretch;
}
.page-news__tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 20px;
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-2);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.page-news__tag:first-child {
  border-left: 1px solid var(--line);
}
.page-news__tag:hover,
.page-news__tag:focus-visible {
  color: var(--cyan);
  background: rgba(47, 243, 208, 0.07);
}
.page-news__tag-num {
  font-size: 11px;
  color: var(--text-3);
}

/* ---------- 主体双栏 ---------- */
.page-news__layout {
  row-gap: 44px;
}
.page-news__list {
  min-width: 0;
}

/* ---------- 分组 ---------- */
.page-news__group + .page-news__group {
  margin-top: 52px;
}
.page-news__group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.page-news__group-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.page-news__group-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(47, 243, 208, 0.14);
}
.page-news #cat-version .page-news__group-dot {
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(76, 141, 255, 0.16);
}
.page-news #cat-data .page-news__group-dot {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.16);
}
.page-news #cat-life .page-news__group-dot {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 194, 75, 0.16);
}
.page-news__group-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 208, 0.35);
  padding-bottom: 1px;
}
.page-news__group-link:hover {
  border-bottom-color: var(--cyan);
}
.page-news__group-figure {
  position: relative;
  margin: 20px 0 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-800);
}
.page-news__group-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 条目列表 ---------- */
.page-news__items {
  margin: 0;
  padding: 0;
}
.page-news__item {
  padding: 18px 14px;
  margin: 0 -14px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.25s var(--ease);
}
.page-news__item:hover,
.page-news__item:focus-within {
  background: rgba(47, 243, 208, 0.028);
}
.page-news__item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-bottom: 8px;
}
.page-news__item-time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-3);
}
.page-news__item-title {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.005em;
}
.page-news__item-text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s var(--ease);
}
.page-news__item:hover .page-news__item-text,
.page-news__item:focus-within .page-news__item-text {
  -webkit-line-clamp: 6;
  color: var(--text);
}

/* ---------- 本期焦点 ---------- */
.page-news__focus {
  order: -1;
  align-self: start;
  min-width: 0;
}
.page-news__focus-card {
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(17, 27, 54, 0.92), rgba(10, 16, 36, 0.72));
}
.page-news__focus-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--ink-950);
}
.page-news__focus-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}
.page-news__focus-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 15, 0.12) 28%, rgba(5, 7, 15, 0.9) 100%);
  pointer-events: none;
}
.page-news__focus-cap {
  position: absolute;
  left: 16px;
  bottom: 12px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}
.page-news__focus-index {
  display: block;
  margin: 20px 22px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}
.page-news__focus-title {
  margin: 8px 22px 0;
  font-size: clamp(19px, 3.6vw, 25px);
  line-height: 1.38;
  letter-spacing: -0.015em;
}
.page-news__focus-text {
  margin: 12px 22px 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
}
.page-news__focus-btn {
  margin: 20px 22px 24px;
}

/* ---------- 专题卡带 ---------- */
.page-news__series-sec {
  border-top: 1px solid var(--line);
}
.page-news__section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  margin-bottom: 26px;
}
.page-news__section-head h2 {
  margin: 0;
  font-size: clamp(23px, 4.4vw, 36px);
  letter-spacing: -0.025em;
}
.page-news__section-head p {
  margin: 0;
  font-size: 14px;
  color: var(--text-2);
}
.page-news__rail {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 18px;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: var(--line) transparent;
}
.page-news__rail::-webkit-scrollbar {
  height: 6px;
}
.page-news__rail::-webkit-scrollbar-track {
  background: var(--line);
  border-radius: 99px;
}
.page-news__rail::-webkit-scrollbar-thumb {
  background: var(--cyan);
  border-radius: 99px;
}
.page-news__series {
  position: relative;
  flex: 0 0 82%;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 216px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(17, 27, 54, 0.92), rgba(10, 16, 36, 0.6));
  overflow: hidden;
}
.page-news__series::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--grad-field);
  opacity: 0.72;
}
.page-news__series-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-news__series:nth-child(2) .page-news__series-index {
  color: var(--blue);
}
.page-news__series:nth-child(3) .page-news__series-index {
  color: var(--orange);
}
.page-news__series:nth-child(4) .page-news__series-index {
  color: var(--amber);
}
.page-news__series-title {
  margin: 0;
  font-size: 19px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}
.page-news__series-text {
  flex: 1;
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-2);
}
.page-news__series-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-3);
}

/* ---------- 订阅 ---------- */
.page-news__subscribe-panel {
  padding: 32px 24px;
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(76, 141, 255, 0.18), rgba(5, 7, 15, 0) 62%),
    linear-gradient(140deg, rgba(17, 27, 54, 0.95), rgba(10, 16, 36, 0.85));
}
.page-news__subscribe-panel h2 {
  margin: 10px 0 0;
  font-size: clamp(21px, 4.2vw, 32px);
  line-height: 1.32;
  letter-spacing: -0.022em;
}
.page-news__subscribe-panel p {
  margin: 12px 0 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-2);
}
.page-news__cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 24px;
}
.page-news__text-link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--text-2);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-news__text-link:hover,
.page-news__text-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 721px) {
  .page-news__hero {
    padding-top: 52px;
  }
  .page-news__tag {
    padding: 17px 26px;
  }
  .page-news__item {
    padding: 20px 16px;
    margin: 0 -16px;
  }
  .page-news__item-title {
    font-size: 17px;
  }
  .page-news__subscribe-panel {
    padding: 44px 40px;
  }
  .page-news__series {
    flex: 0 0 calc((100% - 16px) / 2);
  }
}

@media (min-width: 961px) {
  .page-news__focus {
    order: 0;
    position: sticky;
    top: 104px;
  }
  .page-news__list {
    padding-right: 12px;
  }
  .page-news__focus-card > * {
    max-width: 100%;
  }
}

@media (min-width: 1081px) {
  .page-news__series {
    flex: 0 0 calc((100% - 32px) / 3);
  }
  .page-news__series-sec {
    padding-top: 88px;
  }
}