.page-news {
  --news-card-bg: var(--ink-2);
  --news-dot: 10px;
}

/* 面包屑留白 */
.page-news .crumbs {
  padding-top: clamp(14px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-news .news-lead__head {
  max-width: 860px;
}
.page-news .news-lead__title {
  max-width: 720px;
  margin: 18px 0 22px;
}
.page-news .news-lead__lede {
  max-width: 640px;
  margin: 0;
}
.page-news .news-lead__figure {
  margin: clamp(32px, 5vw, 68px) 0 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
}
.page-news .frame img {
  max-width: 100%;
}

/* ---------- 本期头条 ---------- */
.page-news .news-feature .eyebrow {
  margin-bottom: 30px;
}
.page-news .news-feature__body {
  max-width: 880px;
  padding-left: clamp(20px, 3.4vw, 54px);
  border-left: 4px solid var(--amber);
}
.page-news .news-feature__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.page-news .news-feature__time {
  font-size: 13px;
  color: var(--screen);
}
.page-news .news-feature__title {
  margin: 20px 0 26px;
}
.page-news .news-feature__sum {
  max-width: 640px;
  margin: 0 0 14px;
  font-size: 17px;
  line-height: 1.78;
  color: var(--text);
}
.page-news .news-feature__sum:last-of-type {
  color: var(--muted);
}
.page-news .news-feature__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

/* ---------- 筛选器 ---------- */
.page-news .filter {
  position: relative;
}
.page-news .filter__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 按系列浏览 ---------- */
.page-news .news-series__title {
  margin: 16px 0 14px;
}
.page-news .news-series__lede {
  max-width: 620px;
  margin: 0;
}
.page-news .series-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(30px, 4vw, 48px);
}
.page-news .series-card {
  --news-c: var(--muted);
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 20px 20px 22px;
  border: 2px solid var(--line);
  background: var(--news-card-bg);
  cursor: pointer;
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}
.page-news .series-card:hover {
  border-color: var(--news-c);
  transform: translateY(-3px);
}
.page-news .series-card__dot {
  width: var(--news-dot);
  height: var(--news-dot);
  border-radius: 50%;
  background: var(--news-c);
  box-shadow: 0 0 14px var(--news-c);
}
.page-news .series-card__name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--text);
}
.page-news .series-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}
.page-news .series-card__count {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--news-c);
}

.page-news .series-card--all { --news-c: var(--screen); }
.page-news .series-card--review { --news-c: var(--amber); }
.page-news .series-card--tactic { --news-c: var(--glow); }
.page-news .series-card--data { --news-c: var(--lamp); }
.page-news .series-card--version { --news-c: var(--muted); }
.page-news .series-card--ask { --news-c: var(--turf); }

.page-news #f-all:checked ~ .news-series .series-card--all,
.page-news #f-review:checked ~ .news-series .series-card--review,
.page-news #f-tactic:checked ~ .news-series .series-card--tactic,
.page-news #f-data:checked ~ .news-series .series-card--data,
.page-news #f-version:checked ~ .news-series .series-card--version,
.page-news #f-ask:checked ~ .news-series .series-card--ask {
  border-color: var(--news-c);
  box-shadow: var(--shadow);
  background-image: linear-gradient(180deg, rgba(230, 237, 247, .06), rgba(230, 237, 247, 0) 66%);
}

.page-news #f-all:focus-visible ~ .news-series .series-card--all,
.page-news #f-review:focus-visible ~ .news-series .series-card--review,
.page-news #f-tactic:focus-visible ~ .news-series .series-card--tactic,
.page-news #f-data:focus-visible ~ .news-series .series-card--data,
.page-news #f-version:focus-visible ~ .news-series .series-card--version,
.page-news #f-ask:focus-visible ~ .news-series .series-card--ask {
  outline: 2px solid var(--screen);
  outline-offset: 3px;
}

.page-news .news-series__figure {
  margin: clamp(32px, 4.6vw, 60px) 0 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
}

/* ---------- 最新条目 ---------- */
.page-news .news-latest__title {
  margin: 16px 0 10px;
}
.page-news .news-latest__hint {
  margin: 0;
  font-size: 14px;
}
.page-news .latest-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 4vw, 56px);
  margin-top: 40px;
}
.page-news .entries {
  border-top: 2px solid var(--line);
}
.page-news .entry {
  border-bottom: 1px solid var(--line);
}
.page-news .entry--review { --news-c: var(--amber); }
.page-news .entry--tactic { --news-c: var(--glow); }
.page-news .entry--data { --news-c: var(--lamp); }
.page-news .entry--version { --news-c: var(--muted); }
.page-news .entry--ask { --news-c: var(--turf); }

.page-news .entry__head {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr) auto;
  grid-template-areas:
    "dot series time"
    "dot title title";
  gap: 8px 14px;
  padding: 20px 4px 20px 0;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s var(--ease);
}
.page-news .entry__head::-webkit-details-marker {
  display: none;
}
.page-news .entry__head:focus-visible {
  outline: 2px solid var(--screen);
  outline-offset: 4px;
}
.page-news .entry__dot {
  grid-area: dot;
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--news-c);
  transition: transform .18s var(--ease);
}
.page-news .entry__series {
  grid-area: series;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--news-c);
}
.page-news .entry__title {
  grid-area: title;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
  transition: color .18s var(--ease);
}
.page-news .entry__time {
  grid-area: time;
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--muted);
  white-space: nowrap;
}
.page-news .entry__body {
  padding: 0 0 24px 28px;
}
.page-news .entry__sum {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.page-news .entry[open] .entry__body {
  animation: news-fade .26s var(--ease);
}
.page-news .entry[open] .entry__dot {
  transform: scale(1.5);
}
.page-news .entry__head:hover .entry__title {
  color: var(--lamp);
}
.page-news .entry__head:hover .entry__dot {
  transform: scale(1.4);
}

.page-news .latest-side__figure {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
}
.page-news .latest-side__note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}
.page-news .latest-side__note a {
  color: var(--lamp);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 筛选生效 */
.page-news #f-review:checked ~ .news-latest .entry:not(.entry--review),
.page-news #f-tactic:checked ~ .news-latest .entry:not(.entry--tactic),
.page-news #f-data:checked ~ .news-latest .entry:not(.entry--data),
.page-news #f-version:checked ~ .news-latest .entry:not(.entry--version),
.page-news #f-ask:checked ~ .news-latest .entry:not(.entry--ask) {
  display: none;
}

/* ---------- 阅读路径 ---------- */
.page-news .news-path__title {
  margin: 16px 0 0;
}
.page-news .path-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  margin-top: clamp(30px, 4vw, 46px);
}
.page-news .path-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .path-step {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 6px 18px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.page-news .path-step:last-child {
  border-bottom: 1px solid var(--line);
}
.page-news .path-step__num {
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--screen);
}
.page-news .path-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--text);
}
.page-news .path-step__text {
  max-width: 52ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.page-news .news-path__figure {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
}
.page-news .news-path__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(28px, 4vw, 44px);
}

/* ---------- 投稿与线索 ---------- */
.page-news .news-tips__panel {
  padding: clamp(28px, 4.6vw, 60px);
  border: 2px solid var(--lamp);
  background-image: linear-gradient(140deg, rgba(242, 183, 92, .12), rgba(242, 183, 92, 0) 62%);
  box-shadow: var(--shadow);
}
.page-news .news-tips__title {
  max-width: 620px;
  margin: 16px 0 20px;
}
.page-news .news-tips__text {
  max-width: 640px;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}
.page-news .news-tips__text:last-of-type {
  color: var(--muted);
}
.page-news .news-tips__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

/* ---------- 浮动回顶 ---------- */
.page-news .news-jump {
  position: fixed;
  right: clamp(12px, 2.4vw, 30px);
  bottom: clamp(12px, 2.4vw, 30px);
  z-index: 30;
  padding: 10px 16px;
  font-size: 13px;
  background: var(--ink-2);
}

@keyframes news-fade {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-news .entry__head {
    grid-template-columns: 14px 104px minmax(0, 1fr) auto;
    grid-template-areas: "dot series title time";
    align-items: center;
    gap: 0 20px;
    padding: 22px 4px 22px 0;
  }
  .page-news .entry__dot {
    margin-top: 0;
  }
  .page-news .entry__body {
    padding-left: 138px;
  }
}

@media (min-width: 1000px) {
  .page-news .latest-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
  }
  .page-news .latest-side {
    position: sticky;
    top: 96px;
    align-self: start;
  }
  .page-news .path-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-news .news-jump {
    padding: 8px 12px;
    font-size: 12px;
  }
  .page-news .entry__body {
    padding-left: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .series-card,
  .page-news .entry__dot,
  .page-news .entry__title {
    transition-duration: .01ms;
  }
  .page-news .entry[open] .entry__body {
    animation: none;
  }
}