.page-news {
  background: var(--deep);
  color: var(--mist);
}

.page-news .news-top {
  padding-top: var(--sp-3);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: var(--sp-5);
  border-bottom: var(--line);
}

.page-news .news-hero h1 {
  margin: var(--sp-2) 0;
  font-size: var(--fs-h1);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-news .news-hero__lede {
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--mist);
}

.page-news .news-hero__viz {
  margin-top: var(--sp-4);
  border-top: var(--line);
}

.page-news .news-hero__viz img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ---------- 分类标签条 ---------- */
.page-news .news-tags {
  margin-top: var(--sp-3);
}

.page-news .news-tags__list {
  display: flex;
  gap: var(--sp-1);
  margin: 0;
  padding: 0 0 var(--sp-2);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-tags__list::-webkit-scrollbar {
  display: none;
}

.page-news .news-tags__list li {
  flex: 0 0 auto;
}

.page-news .news-tags__link {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--grid);
  color: var(--grey);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-news .news-tags__link:hover,
.page-news .news-tags__link:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--deep);
}

/* ---------- 主结构 ---------- */
.page-news .news-shell {
  display: grid;
  gap: var(--sp-6);
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-6);
}

.page-news .news-main {
  min-width: 0;
}

.page-news .news-rail {
  display: grid;
  gap: var(--sp-3);
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-news .news-shell {
    grid-template-columns: minmax(0, 1fr) 296px;
    grid-template-areas: "main rail";
    gap: var(--sp-5);
    align-items: start;
  }

  .page-news .news-main {
    grid-area: main;
  }

  .page-news .news-rail {
    grid-area: rail;
    position: sticky;
    top: calc(var(--topbar) + var(--sp-2));
  }
}

/* ---------- 章节 ---------- */
.page-news .news-section + .news-section {
  margin-top: var(--sp-6);
  padding-top: var(--sp-6);
  border-top: var(--line);
}

.page-news .news-section__head {
  margin-bottom: var(--sp-4);
}

.page-news .news-section__title {
  margin: var(--sp-2) 0 0;
  font-size: var(--fs-h2);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

/* ---------- 置顶专题 ---------- */
.page-news .topics {
  display: grid;
  gap: var(--sp-3);
}

@media (min-width: 760px) {
  .page-news .topics {
    grid-template-columns: 1.15fr 1fr;
  }
}

.page-news .topic-card {
  display: flex;
  flex-direction: column;
  border: var(--line);
  background: var(--navy);
  color: var(--mist);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .topic-card:hover,
.page-news .topic-card:focus-visible {
  border-color: var(--cyan);
  background: var(--cyan-12);
}

.page-news .topic-card__media {
  display: block;
  border-bottom: var(--line);
}

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

.page-news .topic-card__body {
  display: grid;
  gap: 10px;
  padding: var(--sp-3);
}

.page-news .topic-card__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .topic-card__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-news .topic-card__text {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--grey);
}

.page-news .topic-card--plain {
  justify-content: space-between;
}

.page-news .topic-card__glyph {
  padding: 0 var(--sp-3) var(--sp-3);
  font-family: var(--font-mono);
  font-size: clamp(48px, 12vw, 84px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--grid);
}

/* ---------- 轮次分组 ---------- */
.page-news .round-group {
  position: relative;
  padding-left: var(--sp-3);
  border-left: var(--line);
}

.page-news .round-group + .round-group {
  margin-top: var(--sp-5);
}

@media (min-width: 760px) {
  .page-news .round-group {
    padding-left: var(--sp-4);
  }
}

.page-news .round-group__head {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  margin: 0 0 var(--sp-3);
  font-weight: 400;
}

.page-news .round-group__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 5.5vw, 40px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--white);
}

.page-news .round-group--current .round-group__num {
  color: var(--cyan);
}

.page-news .round-group__meta {
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-news .round-group--current::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

/* ---------- 封面式首条 ---------- */
.page-news .entry-cover {
  display: grid;
  grid-template-columns: 5px minmax(0, 1fr);
  gap: var(--sp-3);
  padding: var(--sp-3);
  margin-bottom: var(--sp-2);
  background: var(--navy);
  border: var(--line);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .entry-cover:hover {
  border-color: var(--cyan-24);
  background: var(--cyan-12);
}

.page-news .entry-cover__bar {
  display: block;
  background: var(--cyan);
}

.page-news .entry-cover__body {
  min-width: 0;
}

.page-news .entry-cover__title {
  margin: 8px 0 0;
  font-size: clamp(19px, 3.2vw, 24px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-news .entry-cover__sum {
  margin: var(--sp-2) 0 0;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--grey);
}

.page-news .entry-cover__more {
  margin-top: var(--sp-2);
  padding-top: 10px;
  border-top: var(--line);
}

.page-news .entry-cover__more summary {
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-news .entry-cover__more summary::-webkit-details-marker {
  display: none;
}

.page-news .entry-cover__more summary::before {
  content: "+ ";
  font-family: var(--font-mono);
}

.page-news .entry-cover__more[open] summary::before {
  content: "− ";
}

.page-news .entry-cover__figs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: var(--sp-2);
  margin: var(--sp-2) 0 0;
}

.page-news .entry-cover__figs > div {
  padding-left: 10px;
  border-left: 2px solid var(--cyan);
}

.page-news .entry-cover__figs dt {
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  color: var(--grey);
}

.page-news .entry-cover__figs dd {
  margin: 6px 0 0;
  font-size: 18px;
  color: var(--white);
}

/* ---------- 紧凑条目 ---------- */
.page-news .entry-row {
  position: relative;
  padding: var(--sp-2) var(--sp-2) var(--sp-2) var(--sp-3);
  border-bottom: var(--line);
  transition: background-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-news .entry-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity 0.18s var(--ease);
}

.page-news .entry-row:hover {
  background-color: var(--cyan-12);
  transform: translateX(2px);
}

.page-news .entry-row:hover::before {
  opacity: 1;
}

.page-news .entry-row--media {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: var(--sp-2);
  align-items: start;
}

@media (min-width: 760px) {
  .page-news .entry-row--media {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: var(--sp-3);
  }
}

.page-news .entry-row__media {
  display: block;
  border: var(--line);
}

.page-news .entry-row__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-news .entry-row__body {
  min-width: 0;
}

.page-news .entry-row__tags {
  margin: 0;
}

.page-news .entry-tag {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--grid);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--grey);
}

.page-news .entry-tag--check {
  border-color: var(--amber);
  color: var(--amber);
}

.page-news .entry-tag--version {
  border-color: var(--cyan-24);
  color: var(--cyan);
}

.page-news .entry-row__title {
  margin: 8px 0 0;
  font-size: var(--fs-body);
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-news .entry-row__sum {
  margin: 4px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 关注与推送 ---------- */
.page-news .follow-box {
  margin-top: var(--sp-6);
  padding: var(--sp-4);
  background: var(--navy);
  border: var(--line);
  border-top: 2px solid var(--cyan);
}

.page-news .follow-box__text {
  max-width: 40em;
  margin: var(--sp-2) 0 0;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--mist);
}

.page-news .follow-box__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}

.page-news .news-links {
  margin: var(--sp-3) 0 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--grey);
}

.page-news .news-links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-24);
}

.page-news .news-links a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 右侧固定栏 ---------- */
.page-news .rail-panel {
  padding: var(--sp-3);
  background: var(--navy);
  border: var(--line);
}

.page-news .rail-panel__title {
  margin: 0 0 var(--sp-2);
  padding-bottom: 10px;
  border-bottom: var(--line);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-news .rail-list li + li {
  border-top: var(--line);
}

.page-news .rail-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-2);
  padding: 10px 0;
  font-size: var(--fs-sm);
  color: var(--mist);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-news .rail-list a:hover {
  color: var(--cyan);
}

.page-news .rail-list a span {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  color: var(--grey);
}

.page-news .rhythm-list {
  display: grid;
  gap: var(--sp-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .rhythm-list li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: var(--sp-2);
  align-items: baseline;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--mist);
}

.page-news .rhythm-list__num {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .entry-row,
  .page-news .topic-card,
  .page-news .news-tags__link,
  .page-news .rail-list a {
    transition: none;
  }

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