.page-news {
  --news-rail: 108px;
  --news-glow: rgba(124, 77, 255, .18);
  color: var(--text);
  padding-bottom: clamp(40px, 8vw, 88px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(28px, 5vw, 56px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(58, 36, 134, .55), transparent 62%),
    radial-gradient(90% 70% at 4% 100%, rgba(56, 242, 224, .10), transparent 60%);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, var(--purple) 0%, var(--cyan) 45%, transparent 100%);
  opacity: .55;
}

.page-news .news-hero__grid {
  display: grid;
  gap: 24px;
  margin-top: 18px;
}

.page-news .news-hero__kicker {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--purple-lt);
}

.page-news .news-hero__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 64px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-news .news-hero__lede {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-news .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 0 0 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .hero-stats__item {
  display: flex;
  flex-direction: column-reverse;
  gap: 4px;
  min-width: 0;
}

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

.page-news .hero-stats dd {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: -.01em;
}

.page-news .news-hero__jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 0;
  font-size: 13px;
  color: var(--text-mute);
}

.page-news .news-hero__jump a {
  color: var(--purple-lt);
  text-decoration: none;
  border-bottom: 1px solid rgba(169, 139, 255, .4);
  padding-bottom: 1px;
}

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

.page-news .news-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-800);
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 通用章节 ---------- */
.page-news .news-section {
  position: relative;
  padding: clamp(36px, 6vw, 68px) 0;
  border-top: 1px solid var(--line);
}

.page-news .news-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 6px 14px;
  margin-bottom: 26px;
}

.page-news .news-head__num {
  font-size: 13px;
  line-height: 1.2;
  letter-spacing: .16em;
  color: var(--purple-lt);
  border: 1px solid rgba(124, 77, 255, .45);
  border-radius: var(--r-pill);
  padding: 3px 10px;
}

.page-news .news-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-news .news-head__lede {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-news .news-figure {
  margin: 0 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-news .news-figure--wide img { aspect-ratio: 2 / 1; }
.page-news .news-figure--tall img { aspect-ratio: 3 / 2; }

.page-news .news-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 01 提要 ---------- */
.page-news .brief {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--line);
  overflow: hidden;
}

.page-news .brief__item {
  display: grid;
  gap: 8px;
  padding: 18px;
  background: var(--ink-800);
}

.page-news .brief__tag {
  justify-self: start;
}

.page-news .brief__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
}

.page-news .brief__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-news .brief__when {
  font-size: 12px;
  color: var(--text-mute);
}

/* ---------- 02 栏目调整时间线 ---------- */
.page-news .timeline {
  display: grid;
  gap: 2px;
}

.page-news .entry {
  position: relative;
  padding: 14px 0 14px 18px;
  border-left: 1px solid var(--line);
}

.page-news .entry::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 22px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 0 4px var(--news-glow);
}

.page-news .entry[open]::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(56, 242, 224, .16);
}

.page-news .entry__head {
  display: grid;
  gap: 6px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .entry__when {
  font-size: 12px;
  color: var(--text-mute);
}

.page-news .entry__when::before {
  content: "▸ ";
  color: var(--purple-lt);
}

.page-news .entry[open] .entry__when::before { content: "▾ "; }

.page-news .entry__title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}

.page-news .entry__head:hover .entry__title { color: var(--purple-lt); }

.page-news .entry__tag {
  justify-self: start;
}

.page-news .entry__text {
  margin: 10px 0 0;
  max-width: 70ch;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 03 版本 ---------- */
.page-news .versions {
  display: grid;
  gap: 14px;
}

.page-news .version {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(135deg, rgba(124, 77, 255, .10), transparent 62%),
    var(--ink-800);
}

.page-news .version--current {
  border-color: rgba(124, 77, 255, .55);
  box-shadow: 0 18px 48px -30px rgba(58, 36, 134, .95);
}

.page-news .version__no {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-news .version__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
}

.page-news .version__body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 04 数据源 ---------- */
.page-news .source-split {
  display: grid;
  gap: 24px;
}

.page-news .source-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.page-news .source-table th,
.page-news .source-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}

.page-news .source-table th {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--text-mute);
}

.page-news .source-table td {
  color: var(--text);
}

.page-news .source-table td.mono {
  color: var(--cyan);
}

.page-news .source-split__subtitle {
  margin: 22px 0 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--purple-lt);
}

.page-news .source-split__copy p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 05 专题 ---------- */
.page-news .topics {
  display: grid;
  gap: 14px;
}

.page-news .topic {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-800);
}

.page-news .topic__badge {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-news .topic h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.page-news .topic p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 06 订阅与反馈 ---------- */
.page-news .feedback {
  display: grid;
  gap: 20px;
  padding: clamp(20px, 4vw, 36px);
  border: 1px solid rgba(124, 77, 255, .42);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(124, 77, 255, .20), transparent 62%),
    var(--ink-800);
}

.page-news .feedback__copy h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

.page-news .feedback__copy p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-news .feedback__mail {
  color: var(--cyan) !important;
  font-size: 13px;
  word-break: break-all;
}

.page-news .feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 480px) {
  .page-news .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-news .brief__item {
    grid-template-columns: 104px minmax(0, 1fr) 148px;
    align-items: start;
    gap: 6px 18px;
    padding: 20px 22px;
  }

  .page-news .brief__tag {
    grid-row: 1 / 3;
    align-self: start;
  }

  .page-news .brief__when {
    text-align: right;
    grid-row: 1 / 3;
    align-self: start;
    padding-top: 3px;
  }

  .page-news .entry {
    padding: 16px 0 16px 22px;
  }

  .page-news .entry__head {
    grid-template-columns: 168px minmax(0, 1fr) auto;
    align-items: center;
    gap: 4px 16px;
  }

  .page-news .entry__when,
  .page-news .entry__tag {
    grid-row: 1;
  }

  .page-news .entry__text {
    margin-left: 184px;
  }

  .page-news .version {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 6px 24px;
    align-items: start;
    padding: 24px 26px;
  }

  .page-news .version__no {
    font-size: 34px;
  }

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

  .page-news .feedback {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: end;
    gap: 40px;
  }

  .page-news .source-split {
    grid-template-columns: 1.1fr .9fr;
    gap: 36px;
    align-items: start;
  }

  .page-news .news-figure--wide {
    margin-bottom: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-hero::after,
  .page-news .entry__when::before {
    transition: none;
  }
}