.page-news {
  --news-gap: 20px;
  --news-max: 34ch;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: 64px;
}

.page-news .breadcrumb {
  padding-top: 28px;
}

.page-news .news-masthead {
  padding: 20px 0 40px;
  border-bottom: var(--edge) solid var(--line);
}

.page-news .news-masthead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 30px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 12px 0 16px;
  max-width: 22ch;
}

.page-news .news-lede {
  font-size: 16px;
  line-height: 1.75;
  color: var(--white);
  max-width: var(--news-max);
  margin-bottom: 28px;
}

.page-news .news-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.page-news .news-fact {
  border-left: var(--edge) solid var(--cyan);
  padding: 4px 0 4px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .news-fact-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  color: var(--cyan-soft);
  line-height: 1.1;
}

.page-news .news-fact-txt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-news .news-hero {
  margin: 32px 0 0;
}

.page-news .media-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--edge) solid var(--line);
}

.page-news .media-cap {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .news-block {
  padding: 56px 0;
}

.page-news .news-block-head {
  margin-bottom: 28px;
}

.page-news .news-block-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 10px 0 12px;
}

.page-news .news-block-sub {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 40ch;
}

/* ---------- 分段切换 ---------- */
.page-news .news-tabs {
  border-top: var(--edge) solid var(--line);
  padding-top: 20px;
}

.page-news .news-tabs .tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-news .news-tabs .tabs-tab {
  min-height: 44px;
  padding: 0 16px;
  background: transparent;
  color: var(--cyan-soft);
  border: var(--edge) solid var(--cyan);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.page-news .news-tabs .tabs-tab[aria-selected="true"] {
  background: var(--panel);
  color: var(--white);
  border-color: var(--cyan);
}

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

.page-news .news-panel {
  border: var(--edge) solid var(--line);
  background: var(--panel);
  padding: 22px 18px;
  box-shadow: var(--shadow);
}

.page-news .news-panel-lead {
  font-size: 16px;
  line-height: 1.75;
  max-width: var(--news-max);
  margin-bottom: 18px;
}

.page-news .news-checks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-checks li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .news-checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 12px;
  height: var(--edge);
  background: var(--amber);
}

/* ---------- 条目列表 ---------- */
.page-news .news-layout {
  display: grid;
  gap: 32px;
}

.page-news .news-rail {
  border: var(--edge) solid var(--line);
  background: var(--panel);
  padding: 18px;
}

.page-news .rail-block + .rail-block {
  margin-top: 20px;
  padding-top: 18px;
  border-top: var(--edge) solid var(--line);
}

.page-news .rail-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-news .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .rail-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
}

.page-news .rail-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-news .rail-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .tag--on {
  border-color: var(--cyan);
  color: var(--cyan-soft);
  background: var(--ink);
}

.page-news .rail-note {
  margin-top: 18px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .news-feed {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .note-row {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: var(--edge) solid var(--line);
}

.page-news .note-row::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 30px;
  height: var(--edge);
  background: var(--line);
  transition: background 140ms linear;
}

.page-news .note-row:hover::after,
.page-news .note-row:focus-within::after {
  background: var(--cyan);
}

.page-news .note-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  padding-top: 4px;
  letter-spacing: 0.08em;
}

.page-news .note-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.page-news .note-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.page-news .note-dek {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: var(--news-max);
  margin-bottom: 10px;
}

.page-news .note-time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-news .note-jump {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  color: var(--cyan);
  border-bottom: var(--edge) solid var(--cyan);
  padding-bottom: 2px;
  min-height: 24px;
}

.page-news .note-jump:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 三段式 ---------- */
.page-news .brief-grid {
  display: grid;
  gap: 0;
  border-top: var(--edge) solid var(--line);
}

.page-news .brief-step {
  padding: 22px 0;
  border-bottom: var(--edge) solid var(--line);
}

.page-news .brief-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--red);
  margin-bottom: 8px;
}

.page-news .brief-step h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  margin-bottom: 8px;
}

.page-news .brief-step p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: var(--news-max);
}

.page-news .news-diagram {
  margin: 32px 0;
}

.page-news .news-fold {
  border: var(--edge) solid var(--line);
  background: var(--panel);
  padding: 18px;
}

.page-news .news-fold .fold-body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: var(--news-max);
}

.page-news .news-fold .fold-body p + p {
  margin-top: 12px;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series .news-block-head h2 {
  color: var(--white);
}

.page-news .series-grid {
  display: grid;
  gap: 24px;
}

.page-news .series-card {
  border: var(--edge) solid var(--line);
  background: var(--ink);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.page-news .series-stripe {
  display: flex;
  height: 12px;
}

.page-news .series-stripe span {
  flex: 1;
}

.page-news .series-stripe span:nth-child(1) { background: var(--cyan); }
.page-news .series-stripe span:nth-child(2) { background: var(--red); }
.page-news .series-stripe span:nth-child(3) { background: var(--amber); }

.page-news .series-thumb {
  margin: 0;
  border-bottom: var(--edge) solid var(--line);
}

.page-news .series-thumb .media-img {
  border: 0;
  aspect-ratio: 3 / 2;
}

.page-news .series-body {
  padding: 20px 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.page-news .series-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-news .series-body h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.page-news .series-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .series-tag {
  margin-top: auto;
  padding-top: 12px;
  border-top: var(--edge) solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

/* ---------- 更新节奏 ---------- */
.page-news .cadence {
  border-top: var(--edge) solid var(--line);
}

.page-news .cadence-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: var(--edge) solid var(--line);
}

.page-news .cadence-key {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-news .cadence-val {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--cyan-soft);
}

.page-news .cadence-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .news-aside {
  margin-top: 24px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 46ch;
}

.page-news .news-aside a {
  color: var(--cyan);
  border-bottom: var(--edge) solid var(--cyan);
  text-decoration: none;
}

.page-news .news-aside a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 读完之后 ---------- */
.page-news .news-next {
  padding-bottom: 88px;
}

.page-news .news-actions {
  display: grid;
  gap: 20px;
}

.page-news .news-actions .step-card {
  display: grid;
  gap: 8px;
  padding: 22px 18px;
  border: var(--edge) solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--white);
  transition: transform 180ms ease, border-color 180ms ease;
}

.page-news .news-actions .step-card:hover,
.page-news .news-actions .step-card:focus-visible {
  transform: translate(-3px, -3px);
  border-color: var(--cyan);
  outline: none;
}

.page-news .news-actions .step-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-news .news-actions .step-card-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--red);
}

.page-news .news-actions .step-card-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.page-news .news-actions .step-card-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-actions .step-card,
  .page-news .note-row::after {
    transition: none;
  }
}

@media (min-width: 700px) {
  .page-news .news-masthead h1 {
    font-size: 38px;
  }

  .page-news .news-facts {
    gap: 24px;
  }

  .page-news .news-panel {
    padding: 28px 26px;
  }

  .page-news .brief-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: var(--edge) solid var(--line);
  }

  .page-news .brief-step {
    padding: 24px 22px;
    border-bottom: 0;
    border-left: var(--edge) solid var(--line);
  }

  .page-news .brief-step:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-news .cadence-row {
    grid-template-columns: 160px 200px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

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

@media (min-width: 1000px) {
  .page-news {
    padding-bottom: 96px;
  }

  .page-news .news-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 44px;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-news .note-row {
    grid-template-columns: 52px minmax(0, 1fr);
    padding: 24px 0;
  }

  .page-news .note-body {
    padding-right: 150px;
    position: relative;
  }

  .page-news .note-jump {
    position: absolute;
    right: 0;
    top: 40px;
    margin-top: 0;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity 160ms ease, transform 160ms ease;
  }

  .page-news .note-row:hover .note-jump,
  .page-news .note-row:focus-within .note-jump {
    opacity: 1;
    transform: translateX(0);
  }

  .page-news .news-masthead {
    padding-top: 28px;
  }
}