.page-news {
  --news-rule: 1px solid var(--silver-200);
  --news-rule-ink: 1px solid rgba(174, 183, 192, 0.3);
}

.page-news a:focus-visible,
.page-news button:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.page-news .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 首屏 ---------- */
.page-news .news-lead {
  max-width: 820px;
  padding-top: 6px;
}

.page-news .news-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 31px;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink-950);
  margin: 10px 0 16px;
  max-width: 20ch;
}

.page-news .news-lead__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-600);
  max-width: 62ch;
}

.page-news .news-lead__text strong {
  color: var(--ink-950);
  font-weight: 600;
}

/* ---------- 置顶观察条 ---------- */
.page-news .news-pin {
  margin-top: 30px;
  background: var(--paper-200);
  border: var(--news-rule);
  border-left: 3px solid var(--signal);
}

.page-news .news-pin__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-news .news-pin__summary::-webkit-details-marker {
  display: none;
}

.page-news .news-pin__hint {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--silver-400);
  white-space: nowrap;
}

.page-news .news-pin__body {
  padding: 0 16px 16px;
}

.page-news .news-pin__list {
  display: grid;
  gap: 16px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--news-rule);
  padding-top: 16px;
}

.page-news .news-pin__item {
  padding-left: 14px;
  border-left: 2px solid var(--silver-200);
}

.page-news .news-pin__num {
  display: block;
  font-size: 20px;
  line-height: 1.2;
  font-weight: 600;
  color: var(--signal-ink);
}

.page-news .news-pin__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-800);
}

/* ---------- 分类区 ---------- */
.page-news .news-cat-figure {
  margin: 0 0 30px;
}

.page-news .news-cats {
  margin-top: 4px;
}

.page-news .cat {
  border-top: 3px solid var(--silver-400);
  padding: 18px 0 0;
}

.page-news .cat--rules {
  border-top-color: var(--signal);
}

.page-news .cat--heat {
  border-top-color: var(--cold-500);
}

.page-news .cat--runs {
  border-top-color: var(--hot-500);
}

.page-news .cat__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink-950);
  margin: 10px 0 10px;
}

.page-news .cat__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-600);
}

.page-news .cat__fit {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: var(--news-rule);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-800);
}

/* ---------- 文章列表 ---------- */
.page-news .news-feed {
  display: grid;
  gap: 44px;
}

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

.page-news .entry {
  padding: 22px 0;
  border-top: var(--news-rule);
}

.page-news .news-feed__main > .entry:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .entry__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.page-news .entry__time {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--silver-400);
}

.page-news .entry__window {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-600);
  opacity: 0.55;
  transition: opacity 180ms ease, color 180ms ease;
}

.page-news .entry:hover .entry__window,
.page-news .entry:focus-within .entry__window {
  opacity: 1;
  color: var(--signal-ink);
}

.page-news .entry__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.34;
  letter-spacing: -0.01em;
  color: var(--ink-950);
  margin: 12px 0 8px;
  transition: color 180ms ease;
}

.page-news .entry:hover .entry__title {
  color: var(--ink-800);
}

.page-news .entry__sum {
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
  color: var(--ink-600);
}

.page-news .entry__spark {
  display: block;
  width: 100%;
  max-width: 240px;
  height: 40px;
  margin-top: 14px;
}

.page-news .entry__figure {
  margin: 22px 0 22px;
}

/* ---------- 侧栏短清单 ---------- */
.page-news .news-feed__aside {
  min-width: 0;
}

.page-news .news-aside__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink-950);
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-950);
}

.page-news .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}

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

.page-news .short {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 0;
  border-bottom: var(--news-rule);
}

.page-news .short__time {
  flex: 0 0 58px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--silver-400);
}

.page-news .short__title {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-800);
  transition: color 160ms ease;
}

.page-news .short:hover .short__title {
  color: var(--signal-ink);
}

/* ---------- 整理方法 ---------- */
.page-news .section--ink .section-head__index {
  color: var(--signal);
}

.page-news .section--ink .section-head__title {
  color: var(--paper-100);
}

.page-news .section--ink .section-head__lead {
  color: var(--silver-400);
}

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

.page-news .step {
  padding: 20px 0;
  border-top: var(--news-rule-ink);
}

.page-news .step__no {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--signal);
}

.page-news .step__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--paper-100);
  margin: 10px 0 8px;
}

.page-news .step__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--silver-400);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: var(--news-rule-ink);
}

.page-news .news-stats .stat__value {
  font-family: var(--font-num);
  font-size: 30px;
  line-height: 1.1;
  font-weight: 600;
  color: var(--signal);
}

.page-news .news-stats .stat__unit {
  font-size: 13px;
  font-weight: 400;
  margin-left: 4px;
  color: var(--silver-400);
}

.page-news .news-stats .stat__label {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--silver-400);
}

/* ---------- 接着看 ---------- */
.page-news .news-rhythm-figure {
  margin: 0 0 34px;
}

.page-news .news-follow {
  display: grid;
  gap: 34px;
}

.page-news .news-block {
  padding-top: 18px;
  border-top: 2px solid var(--ink-950);
}

.page-news .news-block--signal {
  border-top-color: var(--signal);
}

.page-news .news-block__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.34;
  letter-spacing: -0.01em;
  color: var(--ink-950);
  margin: 0 0 12px;
}

.page-news .news-block__list {
  margin: 0;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-600);
}

.page-news .news-block__list li + li {
  margin-top: 6px;
}

.page-news .news-block__list li::marker {
  color: var(--signal);
}

.page-news .news-block__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 18px 0 0;
}

.page-news .news-textlink {
  font-size: 14px;
  font-weight: 600;
  color: var(--signal-ink);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color 160ms ease;
}

.page-news .news-textlink:hover {
  color: var(--ink-950);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .news-pin__summary {
    padding: 16px 22px;
  }

  .page-news .news-pin__body {
    padding: 0 22px 22px;
  }

  .page-news .news-lead__text {
    font-size: 17px;
  }

  .page-news .entry__title {
    font-size: 22px;
  }
}

@media (min-width: 760px) {
  .page-news .news-title {
    font-size: 42px;
  }

  .page-news .news-pin__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-news .news-follow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
  }

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

@media (min-width: 900px) {
  .page-news .news-feed {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-news .news-feed__aside {
    padding-top: 4px;
  }

  .page-news .news-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 32px;
  }

  .page-news .entry__title {
    font-size: 23px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry__title,
  .page-news .entry__window,
  .page-news .short__title,
  .page-news .news-textlink {
    transition: none;
  }
}