.page-news {
  --notes-rail-w: 208px;
  --notes-gap: 48px;
  padding-top: calc(var(--header-h) + 32px);
  padding-bottom: 96px;
  background-color: var(--ink-950);
  color: var(--text-900);
}

/* ---------- 首屏 ---------- */
.page-news .notes-hero {
  position: relative;
  padding: 24px 0 48px;
  border-bottom: 1px solid var(--line-500);
  overflow: hidden;
}

.page-news .notes-hero::before {
  content: "";
  position: absolute;
  top: -48px;
  right: -12%;
  width: min(660px, 92%);
  height: 300px;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(60% 72% at 68% 32%, #000 0%, transparent 76%);
  mask-image: radial-gradient(60% 72% at 68% 32%, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-news .notes-hero > * {
  position: relative;
  z-index: 1;
}

.page-news .notes-hero__title {
  margin: 16px 0 12px;
  font-family: var(--font-sans);
  font-size: clamp(3rem, 9vw, 7.5rem);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-900);
}

.page-news .notes-hero__sub {
  margin: 0 0 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}

.page-news .notes-hero__lead {
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-300);
}

.page-news .notes-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 24px;
  margin: 40px 0 0;
  padding: 24px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-500);
}

.page-news .notes-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-news .notes-stat__num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--signal-500);
}

.page-news .notes-stat__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-300);
}

/* ---------- 主布局：左轴 + 内容 ---------- */
.page-news .notes-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  margin-top: 48px;
}

.page-news .notes-rail {
  min-width: 0;
  padding: 20px 0 4px;
  border-top: 1px solid var(--line-500);
}

.page-news .notes-rail__title {
  margin: 0 0 16px;
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-300);
}

.page-news .notes-rail__group {
  padding: 0 0 18px;
}

.page-news .notes-rail__groupname {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-900);
}

.page-news .notes-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
  background: var(--text-300);
}

.page-news .notes-dot--cyan { background: var(--cyan-400); }
.page-news .notes-dot--mint { background: var(--mint-400); }
.page-news .notes-dot--amber { background: var(--amber-400); }
.page-news .notes-dot--muted { background: var(--cyan-700); }

.page-news .notes-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .notes-rail__list li {
  flex: none;
}

.page-news .notes-rail__list a {
  display: block;
  padding: 7px 12px;
  border: 1px solid var(--line-500);
  border-radius: var(--radius-pill);
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-300);
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-news .notes-rail__list a:hover,
.page-news .notes-rail__list a:focus-visible {
  color: var(--text-900);
  border-color: var(--signal-500);
}

.page-news .notes-content {
  min-width: 0;
}

/* ---------- 章节通用 ---------- */
.page-news .notes-section {
  padding-bottom: 72px;
}

.page-news .notes-section--last {
  padding-bottom: 0;
}

.page-news .notes-section__lead {
  max-width: 68ch;
  margin: 0 0 32px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-300);
}

/* ---------- 置顶 ---------- */
.page-news .pin-block {
  border: 1px solid var(--line-500);
  border-radius: var(--radius-panel);
  background: var(--paper-50);
  color: var(--ink-950);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

.page-news .pin-item {
  padding: 28px 24px;
}

.page-news .pin-item + .pin-item {
  border-top: 1px solid var(--paper-200);
}

.page-news .pin-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}

.page-news .pin-item .og-tag--cyan {
  color: var(--cyan-700);
  border-color: rgba(14, 116, 144, 0.4);
  background: rgba(34, 211, 238, 0.12);
}

.page-news .pin-item .og-tag--amber {
  color: #8a5a00;
  border-color: rgba(251, 191, 36, 0.5);
  background: rgba(251, 191, 36, 0.16);
}

.page-news .pin-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #6b6f87;
}

.page-news .pin-item__title {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-size: clamp(1.4rem, 4.2vw, 2.1rem);
  font-weight: 300;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-news .pin-item__text {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: #34395c;
}

.page-news .pin-item__text:last-child {
  margin-bottom: 0;
}

.page-news .pin-item__media {
  margin: 20px 0 0;
}

.page-news .pin-item__media .og-img__caption {
  color: #6b6f87;
}

/* ---------- 专题系列 ---------- */
.page-news .series-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-news .series-group {
  min-width: 0;
}

.page-news .series-group__name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-500);
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 500;
  color: var(--text-900);
}

.page-news .series-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .series-item {
  padding: 16px 0 0;
  border-top: 1px solid var(--grid-line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-news .series-item__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--text-900);
}

.page-news .series-item__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-300);
}

/* ---------- 条目流 ---------- */
.page-news .feed-group + .feed-group {
  margin-top: 44px;
}

.page-news .feed-group__label {
  margin: 0 0 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--signal-500);
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--signal-500);
}

.page-news .note-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--line-500);
}

.page-news .note-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}

.page-news .note-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-300);
}

.page-news .note-item__title {
  margin: 0 0 8px;
  max-width: 30ch;
  font-family: var(--font-sans);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--text-900);
}

.page-news .note-item__excerpt {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-300);
}

.page-news .note-item__more > summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

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

.page-news .note-item__more > summary::after {
  content: "+";
  font-size: 14px;
  line-height: 1;
}

.page-news .note-item__more[open] > summary::after {
  content: "−";
}

.page-news .note-item__more > summary:hover,
.page-news .note-item__more > summary:focus-visible {
  border-color: var(--cyan-400);
}

.page-news .note-item__more > p {
  margin: 14px 0 0;
  max-width: 64ch;
  padding-left: 14px;
  border-left: 1px solid var(--cyan-700);
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-300);
}

.page-news .feed-figure {
  margin: 28px 0;
}

/* ---------- 批次日志 ---------- */
.page-news .batch-figure {
  margin: 0 0 40px;
}

.page-news .batch-track {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .batch-node {
  position: relative;
  padding: 0 0 34px 26px;
  border-left: 1px solid var(--line-500);
}

.page-news .batch-node:last-child {
  padding-bottom: 0;
}

.page-news .batch-node::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal-500);
  box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.14);
}

.page-news .batch-node__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-news .batch-node__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--text-900);
}

.page-news .batch-node__desc {
  margin: 0 0 12px;
  max-width: 40ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-300);
}

.page-news .batch-node__list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-news .batch-node__list li {
  position: relative;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-300);
}

.page-news .batch-node__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 8px;
  height: 1px;
  background: var(--line-500);
}

.page-news .batch-node__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--signal-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 90, 31, 0.4);
  transition: border-color 180ms var(--ease);
}

.page-news .batch-node__link:hover,
.page-news .batch-node__link:focus-visible {
  border-color: var(--signal-500);
}

/* ---------- 编辑手记 ---------- */
.page-news .editor-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding: 28px 24px;
  border: 1px solid var(--line-500);
  border-radius: var(--radius-panel);
  background: var(--ink-850);
  box-shadow: var(--shadow-panel);
}

.page-news .editor-note__text {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-300);
}

.page-news .editor-note__text:last-child {
  margin-bottom: 0;
}

.page-news .editor-note__media {
  margin: 0;
}

/* ---------- 回访 ---------- */
.page-news .follow-panel {
  padding: 28px 24px;
  background: var(--ink-850);
}

.page-news .follow-panel__text {
  margin: 0 0 24px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-300);
}

.page-news .follow-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.page-news .follow-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-500);
}

.page-news .follow-links a {
  font-size: 14px;
  line-height: 1.7;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.3);
}

.page-news .follow-links a:hover,
.page-news .follow-links a:focus-visible {
  color: var(--text-900);
  border-color: var(--signal-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .notes-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .pin-item {
    padding: 36px 32px;
  }

  .page-news .series-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 28px;
  }

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

@media (min-width: 900px) {
  .page-news .batch-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }

  .page-news .batch-node {
    padding: 26px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line-500);
  }

  .page-news .batch-node::before {
    left: 0;
    top: -5px;
  }

  .page-news .editor-note {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
    padding: 36px 32px;
  }
}

@media (min-width: 1024px) {
  .page-news {
    padding-bottom: 120px;
  }

  .page-news .notes-layout {
    grid-template-columns: var(--notes-rail-w) minmax(0, 1fr);
    column-gap: var(--notes-gap);
  }

  .page-news .notes-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    padding-bottom: 0;
  }

  .page-news .notes-rail__list {
    flex-direction: column;
    overflow-x: visible;
    gap: 6px;
    padding-bottom: 0;
  }

  .page-news .notes-rail__list a {
    border: 0;
    border-left: 1px solid var(--line-500);
    border-radius: 0;
    padding: 4px 0 4px 12px;
    white-space: normal;
    font-size: 13px;
    transition: color 180ms var(--ease), border-color 180ms var(--ease);
  }

  .page-news .notes-rail__list a:hover,
  .page-news .notes-rail__list a:focus-visible {
    border-left-color: var(--signal-500);
  }

  .page-news .pin-item--feature {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    gap: 36px;
    align-items: center;
  }

  .page-news .pin-item__media {
    margin: 0;
  }

  .page-news .note-item {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    column-gap: 36px;
    align-items: start;
    padding: 28px 0;
  }

  .page-news .note-item__meta {
    grid-column: 1 / -1;
    margin-bottom: 12px;
  }

  .page-news .note-item__title {
    grid-column: 1;
    margin-bottom: 0;
  }

  .page-news .note-item__excerpt {
    grid-column: 2;
    grid-row: 2;
    margin-bottom: 0;
  }

  .page-news .note-item__more {
    grid-column: 2;
    grid-row: 3;
    margin-top: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .notes-rail__list a,
  .page-news .note-item__more > summary,
  .page-news .batch-node__link,
  .page-news .follow-links a {
    transition-duration: 120ms;
  }
}
</final>