.page-news {
  --news-rule: 1px solid var(--line);
  background: var(--sea-900);
  color: var(--fog);
  font-family: var(--ff-body);
  font-size: var(--fs-16);
  line-height: 1.75;
  overflow-wrap: break-word;
}

.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}

.page-news p {
  margin: 0 0 1rem;
}

/* ---------- 面包屑 ---------- */
.page-news .crumbs {
  padding-top: 1.25rem;
  padding-bottom: 0;
}

.page-news .crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-news .crumb-list li:not(:last-child)::after {
  content: "/";
  margin-left: 0.5rem;
  color: var(--sea-700);
}

.page-news .crumb-link {
  color: var(--mist);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-news .crumb-link:hover,
.page-news .crumb-link:focus-visible {
  color: var(--sand);
}

.page-news .crumb-current {
  color: var(--fog);
}

/* ---------- 章节编号 ---------- */
.page-news .chapter-index {
  display: block;
  font-family: var(--ff-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.18em;
  color: var(--teal);
  margin: 0 0 0.4rem;
}

.page-news .chapter-title {
  font-family: var(--ff-head);
  font-size: var(--fs-36);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin: 0;
  color: var(--fog);
}

/* ---------- 页头 ---------- */
.page-news .notes-masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.page-news .masthead-note {
  display: none;
}

.page-news .masthead-kicker {
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  color: var(--sand);
  margin: 0 0 0.75rem;
}

.page-news .masthead-title {
  font-family: var(--ff-head);
  font-size: var(--fs-88);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--fog);
  margin: 0 0 1.25rem;
}

.page-news .masthead-lede {
  max-width: 32em;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--mist);
  margin: 0 0 1.75rem;
}

.page-news .masthead-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  list-style: none;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: var(--news-rule);
}

.page-news .masthead-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-news .masthead-stats .stat-value {
  font-family: var(--ff-mono);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--sand);
}

.page-news .masthead-stats .stat-label {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .masthead-figure {
  margin: 0;
  border: var(--news-rule);
  background: var(--sea-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
  overflow: hidden;
}

.page-news .masthead-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 600;
  object-fit: cover;
}

/* ---------- 01 最近更新 ---------- */
.page-news .notes-index {
  padding: 2.5rem 0 3.5rem;
  border-top: var(--news-rule);
  background: linear-gradient(180deg, var(--sea-800) 0%, var(--sea-900) 65%);
}

.page-news .index-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.75rem;
}

.page-news .index-rail .chapter-title {
  font-size: var(--fs-28);
}

.page-news .index-rail-note {
  margin: 0.75rem 0 0;
  max-width: 22em;
  font-size: var(--fs-12);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .note-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--news-rule);
}

.page-news .note-item {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 0.4rem 1rem;
  padding: 1.5rem 0;
  border-bottom: var(--news-rule);
}

.page-news .note-no {
  font-family: var(--ff-mono);
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--sea-700);
  transition: color 0.24s var(--ease);
}

.page-news .note-item:hover .note-no,
.page-news .note-item:focus-within .note-no {
  color: var(--coral);
}

.page-news .note-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.45rem;
}

.page-news .note-meta .tag {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  padding: 0.18rem 0.6rem;
}

.page-news .note-when {
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .note-title {
  font-family: var(--ff-head);
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--fog);
  margin: 0 0 0.4rem;
}

.page-news .note-summary {
  max-width: 44em;
  margin: 0 0 0.6rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .note-more summary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.25rem 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--teal);
}

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

.page-news .note-more summary::after {
  content: "+";
  font-family: var(--ff-mono);
  font-size: var(--fs-14);
  transition: transform 0.24s var(--ease);
}

.page-news .note-more[open] summary::after {
  transform: rotate(45deg);
}

.page-news .note-points {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .note-points li::marker {
  color: var(--teal);
}

/* ---------- 02 按主题 ---------- */
.page-news .topics {
  padding: 3rem 0;
  border-top: var(--news-rule);
}

.page-news .topics-head {
  margin-bottom: 1.5rem;
}

.page-news .topics-lede {
  max-width: 36em;
  margin: 0.75rem 0 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .segment {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  margin: 0 0 2.25rem;
  padding: 0 0 0.9rem;
  border-bottom: var(--news-rule);
  scrollbar-width: none;
}

.page-news .segment::-webkit-scrollbar {
  display: none;
}

.page-news .segment-item {
  flex: 0 0 auto;
  padding: 0.55rem 1.15rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--pill);
  font-size: var(--fs-14);
  color: var(--fog);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-news .segment-item:hover,
.page-news .segment-item:focus-visible {
  border-color: var(--coral);
  color: var(--coral);
  background: rgba(255, 107, 74, 0.08);
}

.page-news .topic-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: var(--news-rule);
  scroll-margin-top: 7rem;
}

.page-news .topic-block:last-child {
  border-bottom: 0;
  padding-bottom: 0.5rem;
}

.page-news .topic-tag {
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--teal);
  margin: 0 0 0.5rem;
}

.page-news .topic-title {
  font-family: var(--ff-head);
  font-size: var(--fs-28);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fog);
  margin: 0 0 0.85rem;
}

.page-news .topic-text {
  max-width: 40em;
  margin: 0 0 0.85rem;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--mist);
}

.page-news .topic-link {
  margin: 0.5rem 0 0;
}

.page-news .topic-link a {
  display: inline-block;
  font-size: var(--fs-14);
  color: var(--sand);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(230, 181, 102, 0.36);
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-news .topic-link a:hover,
.page-news .topic-link a:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.page-news .topic-figure {
  margin: 0;
  border: var(--news-rule);
  background: var(--sea-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
  overflow: hidden;
}

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

/* ---------- 03 专题 ---------- */
.page-news .feature-series {
  position: relative;
  overflow: hidden;
  padding: 3rem 0;
  border-top: var(--news-rule);
  background: linear-gradient(160deg, var(--sea-800), var(--sea-900) 72%);
}

.page-news .feature-series::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -12%;
  width: 46%;
  height: 180%;
  background: linear-gradient(90deg, transparent, rgba(46, 211, 198, 0.07));
  transform: rotate(18deg);
  pointer-events: none;
}

.page-news .series-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-news .series-lede {
  max-width: 30em;
  margin: 0.85rem 0 0;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--mist);
}

.page-news .series-copy {
  margin-top: 1.25rem;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
}

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

.page-news .series-item {
  position: relative;
  padding: 0 0 1.6rem 1.75rem;
  border-left: 1px solid var(--line);
}

.page-news .series-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.55rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--sea-900);
  border: 2px solid var(--teal);
}

.page-news .series-item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-news .series-item-title {
  font-family: var(--ff-head);
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 0.35rem;
}

.page-news .series-item-title a {
  color: var(--fog);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-news .series-item-title a:hover,
.page-news .series-item-title a:focus-visible {
  color: var(--sand);
}

.page-news .series-text {
  max-width: 42em;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 04 节奏 ---------- */
.page-news .cadence {
  padding: 3rem 0 4rem;
  border-top: var(--news-rule);
}

.page-news .cadence-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.page-news .cadence-body p {
  max-width: 44em;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--mist);
}

.page-news .cadence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-news .cadence-card {
  padding: 1.25rem 1.25rem 1.4rem;
  background: var(--sea-800);
  border: var(--news-rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-news .cadence-card h3 {
  font-family: var(--ff-head);
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.4;
  color: var(--fog);
  margin: 0 0 0.5rem;
}

.page-news .cadence-card p {
  margin: 0 0 0.75rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .inline-link {
  display: inline-block;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--coral);
  text-decoration: none;
  padding-bottom: 1px;
  border-bottom: 1px solid currentColor;
  transition: color 0.24s var(--ease);
}

.page-news .inline-link:hover,
.page-news .inline-link:focus-visible {
  color: var(--sand);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .note-item {
    grid-template-columns: 3.6rem minmax(0, 1fr);
    gap: 0.5rem 1.75rem;
    padding: 1.75rem 0;
  }

  .page-news .note-no {
    font-size: var(--fs-28);
  }

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

@media (min-width: 900px) {
  .page-news .notes-masthead {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 3.5rem;
    align-items: center;
    padding-top: 3.5rem;
    padding-bottom: 4rem;
  }

  .page-news .masthead-lead {
    position: relative;
    padding-right: 2rem;
  }

  .page-news .masthead-note {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
    display: flex;
    align-items: flex-start;
  }

  .page-news .index-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 3.5rem;
  }

  .page-news .index-rail {
    position: sticky;
    top: 6.5rem;
    align-self: start;
  }

  .page-news .topic-block:not(.topic-block--text) {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: center;
    padding: 2.75rem 0;
  }

  .page-news .topic-block--flip .topic-copy {
    order: 2;
  }

  .page-news .topic-block--text .topic-copy {
    max-width: 46em;
  }

  .page-news .series-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 3.5rem;
  }

  .page-news .cadence-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}