.page-news {
  --news-col-gap: clamp(18px, 3vw, 44px);
  --news-offset: clamp(0px, 6vw, 96px);
  padding-bottom: clamp(72px, 12vh, 150px);
  overflow-x: clip;
}

/* ---------- 首屏 · 观测窗 ---------- */
.page-news .news-hero {
  padding: clamp(28px, 6vh, 72px) 0 clamp(40px, 7vh, 88px);
}

.page-news .news-window {
  position: relative;
  margin-top: clamp(20px, 3vw, 36px);
  padding: clamp(30px, 5vw, 76px) clamp(22px, 4.6vw, 68px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 150% at 8% -10%, rgba(110, 75, 255, .26), transparent 58%),
    radial-gradient(90% 120% at 96% 108%, rgba(75, 227, 208, .10), transparent 62%),
    linear-gradient(178deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-news .news-window::after {
  content: "";
  position: absolute;
  inset: 13px;
  pointer-events: none;
  opacity: .5;
  background-image:
    linear-gradient(var(--cyan), var(--cyan)),
    linear-gradient(var(--cyan), var(--cyan)),
    linear-gradient(var(--cyan), var(--cyan)),
    linear-gradient(var(--cyan), var(--cyan)),
    linear-gradient(var(--cyan), var(--cyan)),
    linear-gradient(var(--cyan), var(--cyan)),
    linear-gradient(var(--cyan), var(--cyan)),
    linear-gradient(var(--cyan), var(--cyan));
  background-repeat: no-repeat;
  background-size:
    16px 1px, 1px 16px,
    16px 1px, 1px 16px,
    16px 1px, 1px 16px,
    16px 1px, 1px 16px;
  background-position:
    left top, left top,
    right top, right top,
    left bottom, left bottom,
    right bottom, right bottom;
}

.page-news .news-display {
  margin: 14px 0 0;
  font-size: clamp(46px, 9.5vw, 124px);
  line-height: 1.02;
}

.page-news .news-window .lede {
  margin-top: clamp(18px, 3vw, 30px);
  max-width: 56ch;
}

.page-news .news-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px clamp(26px, 5vw, 64px);
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .news-stats__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .news-stats__k {
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1;
}

.page-news .news-stats__v {
  color: var(--mute);
  font-size: 12px;
  letter-spacing: .16em;
}

/* ---------- 栏目说明 ---------- */
.page-news .news-rubric .lede {
  margin-top: 14px;
  max-width: 58ch;
}

.page-news .rubric-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .rubric-rail__item {
  flex: 1 1 218px;
  min-width: 0;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-news .rubric-rail__item p {
  margin: 12px 0 0;
  color: var(--mute);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 日志列表 ---------- */
.page-news .log-head .prose {
  margin-top: 14px;
}

.page-news .log-list {
  margin-top: clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--line);
}

.page-news .entry {
  display: block;
  background-repeat: repeat-x;
  background-position: top left;
}

.page-news .entry:nth-child(3n + 1) {
  background-image: linear-gradient(90deg, var(--line) 0 12px, transparent 12px 22px);
  background-size: 22px 1px;
}

.page-news .entry:nth-child(3n + 2) {
  background-image: linear-gradient(90deg, transparent 0 6px, var(--line) 6px 26px, transparent 26px 34px);
  background-size: 34px 1px;
}

.page-news .entry:nth-child(3n) {
  background-image: linear-gradient(90deg, var(--line) 0 2px, transparent 2px 9px);
  background-size: 9px 1px;
}

.page-news .entry > summary {
  list-style: none;
  cursor: pointer;
}

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

.page-news .entry > summary::marker {
  content: "";
}

.page-news .entry__head {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(20px, 3vw, 34px) 32px clamp(20px, 3vw, 34px) 0;
  transition: background-color .24s ease, padding-left .24s ease;
}

.page-news .entry__head:hover,
.page-news .entry__head:focus-visible {
  background-image: linear-gradient(90deg, rgba(110, 75, 255, .12), transparent 64%);
}

.page-news .entry__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .entry__head::after {
  content: "";
  position: absolute;
  top: clamp(26px, 3vw, 40px);
  right: 4px;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--mute);
  border-bottom: 1px solid var(--mute);
  transform: rotate(45deg);
  transition: transform .24s ease, border-color .24s ease;
}

.page-news .entry[open] .entry__head::after {
  transform: rotate(-135deg);
  border-color: var(--cyan);
}

.page-news .entry__side {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.page-news .entry__time {
  color: var(--mute);
  font-size: 12px;
  letter-spacing: .04em;
}

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

.page-news .entry__title {
  display: block;
  color: var(--hi);
  font-size: clamp(17px, 2.1vw, 23px);
  font-weight: 400;
  line-height: 1.5;
}

.page-news .entry__digest {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 8px;
  color: var(--mute);
  font-size: 15px;
  line-height: 1.75;
}

.page-news .entry__body {
  max-width: 62ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding-left: clamp(12px, 2vw, 24px);
  border-left: 2px solid rgba(110, 75, 255, .55);
  color: var(--body);
  font-size: 16px;
  line-height: 1.85;
}

.page-news .entry__body p {
  margin: 0;
}

/* 专题提示行 */
.page-news .series-nudge {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin: clamp(18px, 3vw, 30px) 0;
  padding: 15px 0;
  border-top: 1px solid rgba(232, 180, 92, .5);
  border-bottom: 1px solid rgba(232, 180, 92, .5);
}

.page-news .series-nudge__num {
  font-size: 12px;
  letter-spacing: .12em;
}

.page-news .series-nudge__text {
  flex: 1 1 260px;
  color: var(--body);
  font-size: 15px;
  line-height: 1.7;
}

.page-news .series-nudge__link {
  color: var(--cyan);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(75, 227, 208, .4);
  padding-bottom: 2px;
}

.page-news .series-nudge__link:hover,
.page-news .series-nudge__link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* 过渡纹理 */
.page-news .news-rail-band {
  margin: clamp(44px, 7vw, 88px) 0 0;
  padding: 0 var(--gutter);
}

.page-news .news-rail-band img {
  display: block;
  width: 100%;
  max-width: var(--shell);
  height: auto;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  object-fit: cover;
}

/* ---------- 专题系列 ---------- */
.page-news .series-head .lede {
  margin-top: 14px;
  max-width: 58ch;
}

.page-news .series-grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  margin-top: clamp(32px, 5vw, 60px);
}

.page-news .series-card {
  min-width: 0;
  padding: clamp(14px, 2vw, 22px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-soft);
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}

.page-news .series-card:hover {
  transform: translate(-2px, -2px);
  border-color: rgba(110, 75, 255, .62);
  box-shadow: var(--shadow-hard);
}

.page-news .series-card__figure {
  margin: 0 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(120% 130% at 50% 0%, rgba(110, 75, 255, .22), transparent 62%),
    var(--ink-900);
}

.page-news .series-card__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform .4s ease;
}

.page-news .series-card:hover .series-card__figure img {
  transform: scale(1.02);
}

.page-news .series-card__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: .18em;
}

.page-news .series-card__title {
  margin: 8px 0 0;
  color: var(--hi);
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 400;
  line-height: 1.4;
}

.page-news .series-card__desc {
  margin: 12px 0 0;
  color: var(--body);
  font-size: 15px;
  line-height: 1.8;
}

.page-news .series-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-news .series-card__meta > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .series-card__meta dt {
  color: var(--mute);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-news .series-card__meta dd {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence .prose {
  margin-top: 14px;
}

.page-news .cadence-list {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .cadence-item {
  min-width: 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-news .cadence-item__num {
  display: block;
  font-size: 13px;
  letter-spacing: .16em;
}

.page-news .cadence-item__title {
  margin: 10px 0 0;
  color: var(--hi);
  font-size: clamp(17px, 1.8vw, 21px);
  font-weight: 400;
}

.page-news .cadence-item p {
  margin: 10px 0 0;
  color: var(--mute);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 回访 ---------- */
.page-news .return-frame {
  position: relative;
  padding: clamp(24px, 4vw, 52px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(110, 75, 255, .14), transparent 58%),
    var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-news .return-frame .prose {
  margin-top: 16px;
}

.page-news .return-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .return-links li {
  min-width: 0;
}

.page-news .return-note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--mute);
  font-size: 14px;
  line-height: 1.9;
}

.page-news .return-note a {
  color: var(--body);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}

.page-news .return-note a:hover,
.page-news .return-note a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (max-width: 600px) {
  .page-news .entry__head {
    padding-right: 26px;
  }

  .page-news .entry__head::after {
    top: 24px;
    right: 0;
  }

  .page-news .news-stats {
    gap: 16px 24px;
  }

  .page-news .news-stats__item {
    flex: 1 1 40%;
  }

  .page-news .rubric-rail__item {
    flex: 1 1 100%;
  }
}

@media (min-width: 880px) {
  .page-news .entry__head {
    grid-template-columns: minmax(150px, 190px) 1fr;
    gap: var(--news-col-gap);
    align-items: start;
    padding-right: 40px;
  }

  .page-news .entry:nth-of-type(even) .entry__head {
    padding-left: var(--news-offset);
  }

  .page-news .entry__side {
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
  }

  .page-news .entry__body {
    margin-left: 0;
  }

  .page-news .entry:nth-of-type(even) .entry__body {
    margin-left: var(--news-offset);
  }

  .page-news .cadence-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .cadence-item:nth-child(2) {
    margin-top: 40px;
  }

  .page-news .cadence-item:nth-child(3) {
    margin-top: 80px;
  }
}

@media (min-width: 960px) {
  .page-news .series-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-news .series-card:nth-child(1) {
    grid-column: 1 / span 6;
  }

  .page-news .series-card:nth-child(2) {
    grid-column: 8 / span 5;
    margin-top: 64px;
  }

  .page-news .series-card:nth-child(3) {
    grid-column: 3 / span 6;
    margin-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry__head,
  .page-news .entry__head::after,
  .page-news .series-card,
  .page-news .series-card__figure img {
    transition: none;
  }

  .page-news .series-card:hover,
  .page-news .series-card:hover .series-card__figure img {
    transform: none;
  }
}