.page-news {
  --news-grid: rgba(196, 205, 228, 0.07);
  --news-panel: #16204a;
  display: block;
  background: var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 0;
  background: linear-gradient(155deg, #141c41 0%, #0b1230 56%, #070c22 100%);
  border-bottom: 2px solid var(--line-600);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, var(--news-grid) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, var(--news-grid) 0 1px, transparent 1px 34px);
}

.page-news .news-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-news .news-hero__title {
  margin: 10px 0 0;
  font-size: clamp(46px, 12vw, 92px);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--mist-050);
}

.page-news .news-hero__sub {
  margin: 14px 0 0;
  max-width: 34ch;
  font-size: 17px;
  line-height: 1.6;
  color: var(--mist-050);
}

.page-news .news-hero__text {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-300);
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line-600);
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
}

.page-news .news-hero__stats li {
  display: grid;
  gap: 2px;
}

.page-news .news-stat__num {
  font-size: 26px;
  line-height: 1.1;
  color: var(--teal-400);
}

.page-news .news-stat__label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate-300);
}

.page-news .news-hero__figure {
  margin: 30px 0 0;
}

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 380;
  object-fit: cover;
}

/* ---------- 分类轨道 ---------- */
.page-news .topic-bar {
  background: var(--ink-800);
  border-bottom: 2px solid var(--line-600);
}

.page-news .topic-bar__inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 12px;
  padding-bottom: 12px;
  scrollbar-width: thin;
}

.page-news .topic-chip {
  flex: 0 0 auto;
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--slate-300);
  background: var(--ink-700);
  border: 1px solid var(--line-600);
  border-left: 2px solid var(--line-600);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .topic-chip:hover,
.page-news .topic-chip:focus-visible {
  color: var(--mist-050);
  background: #232f5f;
  border-color: var(--line-600);
  border-left-color: var(--teal-400);
}

.page-news .topic-chip--manage { border-left-color: var(--teal-400); }
.page-news .topic-chip--export { border-left-color: var(--orange-500); }
.page-news .topic-chip--sync { border-left-color: var(--slate-300); }
.page-news .topic-chip--version { border-left-color: var(--orange-500); }

/* ---------- 章节通用 ---------- */
.page-news .news-block {
  padding: 52px 0;
}

.page-news .section__lede {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate-300);
}

/* ---------- 笔记流 ---------- */
.page-news .note-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-600);
}

.page-news .note {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-600);
}

.page-news .note__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding: 6px 0;
  transition: background var(--dur) var(--ease);
}

.page-news .note:hover .note__meta {
  background: var(--ink-700);
}

.page-news .note__no {
  font-size: 13px;
  color: var(--orange-500);
}

.page-news .note__time {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate-300);
}

.page-news .tag {
  padding-left: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.08em;
  border-left: 2px solid var(--line-600);
  color: var(--slate-300);
}

.page-news .tag--manage {
  color: var(--teal-400);
  border-left-color: var(--teal-400);
}

.page-news .tag--version {
  color: var(--orange-500);
  border-left-color: var(--orange-500);
}

.page-news .note__title {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--mist-050);
}

.page-news .note__sum {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .note__more {
  margin-top: 10px;
}

.page-news .note__more summary {
  display: inline-block;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--teal-400);
  border-bottom: 1px solid transparent;
}

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

.page-news .note__more summary::before { content: "+ "; }

.page-news .note__more[open] summary::before { content: "\2212 "; }

.page-news .note__more summary:hover {
  border-bottom-color: var(--teal-400);
}

.page-news .note__detail {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--line-600);
}

.page-news .note__detail p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .note__figure {
  margin: 16px 0 0;
}

.page-news .note__figure img,
.page-news .export-figure img,
.page-news .version-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 折叠面板 ---------- */
.page-news .fold-group {
  margin-top: 26px;
}

.page-news .fold {
  background: var(--ink-700);
  border: 2px solid var(--line-600);
  box-shadow: var(--shadow-soft);
}

.page-news .fold + .fold {
  margin-top: 10px;
}

.page-news .fold__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 500;
  color: var(--mist-050);
}

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

.page-news .fold__head::before {
  content: "\25B8";
  font-size: 12px;
  color: var(--orange-500);
}

.page-news .fold[open] .fold__head::before {
  content: "\25BE";
  color: var(--teal-400);
}

.page-news .fold__head:hover {
  background: var(--news-panel);
}

.page-news .fold__body {
  padding: 0 16px 18px;
}

.page-news .fold__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .fold__body p:last-child { margin-bottom: 0; }

/* ---------- 导出与跨端 ---------- */
.page-news .export-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 26px;
}

.page-news .export-figure {
  margin: 0;
}

.page-news .export-formats {
  display: grid;
  gap: 10px;
}

.page-news .fmt {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink-800);
  border: 2px solid var(--line-600);
  box-shadow: var(--shadow-soft);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-news .fmt:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard);
}

.page-news .fmt__name {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

.page-news .fmt__title {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--mist-050);
}

.page-news .fmt__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .sync-notes {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line-600);
}

.page-news .sync-notes__title {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 500;
  color: var(--mist-050);
}

.page-news .sync-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
}

.page-news .sync-list li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .sync-list strong {
  color: var(--teal-400);
  font-weight: 500;
}

/* ---------- 版本说明 ---------- */
.page-news .version-figure {
  margin: 26px 0 34px;
}

.page-news .version-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding-top: 14px;
  border-top: 2px solid var(--line-600);
}

.page-news .version-item {
  position: relative;
  padding: 24px 18px 18px;
  background: var(--ink-800);
  border: 2px solid var(--line-600);
  box-shadow: var(--shadow-hard);
}

.page-news .version-item::before {
  content: "";
  position: absolute;
  top: -9px;
  left: 18px;
  width: 10px;
  height: 10px;
  background: var(--orange-500);
  border: 2px solid var(--ink-900);
}

.page-news .version__no {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

.page-news .version__name {
  margin: 6px 0 8px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--mist-050);
}

.page-news .version__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .version-now {
  margin-top: 16px;
  padding: 20px 18px;
  background: var(--ink-700);
  border: 2px solid var(--teal-400);
}

.page-news .version-now__title {
  margin: 8px 0 10px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--mist-050);
}

.page-news .version-now__title .mono {
  color: var(--teal-400);
}

.page-news .version-now__text {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .version-now__text:last-child { margin-bottom: 0; }

.page-news .version-now__text a {
  color: var(--teal-400);
  text-decoration: none;
  border-bottom: 1px solid var(--line-600);
}

.page-news .version-now__text a:hover {
  border-bottom-color: var(--teal-400);
}

/* ---------- 继续跟进 ---------- */
.page-news .news-follow {
  border-top: 2px solid var(--line-600);
  background: var(--ink-800);
}

.page-news .follow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 26px;
}

.page-news .follow-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 18px;
  background: var(--ink-700);
  border: 2px solid var(--line-600);
  box-shadow: var(--shadow-soft);
}

.page-news .follow-card__title {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--mist-050);
}

.page-news .follow-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grayblue-200);
}

.page-news .follow-card .btn {
  justify-self: start;
  margin-top: 4px;
}

.page-news .follow-card .export-panel {
  margin-top: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-block {
    padding: 72px 0;
  }

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

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

  .page-news .follow-card--export {
    grid-column: span 2;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding-top: 40px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: end;
    gap: 40px;
  }

  .page-news .export-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 32px;
    align-items: start;
  }

  .page-news .version-figure {
    margin-bottom: 44px;
  }
}

@media (min-width: 860px) {
  .page-news .note {
    grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
    gap: 0;
    padding: 0;
  }

  .page-news .note__meta {
    padding: 28px 18px 28px 0;
  }

  .page-news .note__body {
    padding: 28px 0 28px 32px;
    border-left: 1px solid var(--line-600);
  }

  .page-news .note:hover .note__body {
    border-left-color: var(--teal-400);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .fmt,
  .page-news .note__meta,
  .page-news .topic-chip {
    transition: none;
  }

  .page-news .fmt:hover {
    transform: none;
  }
}