.page-news {
  --news-rail: 208px;
  background: var(--ink-900);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}
.page-news .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  font-size: 0.78rem;
}
.page-news .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-news .breadcrumb li + li::before {
  content: "/";
  color: var(--line);
}
.page-news .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}
.page-news .breadcrumb a:hover {
  color: var(--cy);
}
.page-news .breadcrumb [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 封面 ---------- */
.page-news .cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(46px, 9vw, 96px) 0 clamp(34px, 6vw, 60px);
  border-bottom: 1px solid var(--line);
}
.page-news .cover__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.page-news .cover__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 45%;
}
.page-news .cover__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(7, 11, 30, 0.84);
}
.page-news .cover__inner {
  position: relative;
}
.page-news .cover__label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-narrow);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cy);
}
.page-news .cover__label::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--cy);
}
.page-news .cover__title {
  max-width: min(100%, 780px);
  margin: 20px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-display);
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--paper);
}
.page-news .cover__lede {
  max-width: 62ch;
  margin: 22px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist);
}
.page-news .cover__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 18px 28px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.page-news .kpi {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.page-news .kpi-value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--cy);
  word-break: break-word;
}
.page-news .kpi--warm .kpi-value {
  color: var(--orange);
}
.page-news .kpi--violet .kpi-value {
  color: var(--violet);
}
.page-news .kpi-label {
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-news .cover__index {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 24px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
}
.page-news .cover__index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.page-news .cover__index a:hover {
  color: var(--cy);
  border-bottom-color: var(--cy);
}
.page-news .cover__idx-no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cy);
}
.page-news .cover__meter {
  height: 8px;
  margin-top: 26px;
  background-image: repeating-linear-gradient(90deg, var(--cy) 0 2px, transparent 2px 16px);
  opacity: 0.35;
}

/* ---------- 栏栅布局与目录 ---------- */
.page-news .rail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  padding-top: clamp(32px, 6vw, 60px);
  padding-bottom: clamp(48px, 8vw, 88px);
}
.page-news .rail {
  display: none;
}
.page-news .rail-main {
  min-width: 0;
}
.page-news .rail-main > .section + .section {
  margin-top: clamp(36px, 6vw, 72px);
}
.page-news .section {
  scroll-margin-top: calc(var(--header-h) + 18px);
}
.page-news .section-label {
  margin: 0;
  font-family: var(--font-narrow);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cy);
}
.page-news .section-title {
  max-width: 28ch;
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.3;
  color: var(--paper);
}
.page-news .sticky-index {
  position: sticky;
  top: calc(var(--header-h) + 20px);
}
.page-news .index-list {
  list-style: none;
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
}
.page-news .index-link {
  display: block;
  padding: 10px 0 10px 16px;
  border-left: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-news .index-link:hover {
  color: var(--paper);
}
.page-news .index-link[aria-current="true"] {
  color: var(--cy);
  border-left-color: var(--cy);
}

/* ---------- 系列分类 ---------- */
.page-news .series {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 26px;
}
.page-news .series__list {
  display: grid;
  gap: 14px;
}
.page-news .series-card {
  padding: 20px 22px 22px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left-width: 3px;
}
.page-news .series-card h3 {
  margin: 12px 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-h3);
  line-height: 1.42;
  color: var(--paper);
}
.page-news .series-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--mist);
}
.page-news .series-card a {
  color: var(--cy);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
}
.page-news .series-card a:hover {
  border-bottom-color: var(--cy);
}
.page-news .series-card--cyan {
  border-left-color: var(--cy);
}
.page-news .series-card--orange {
  border-left-color: var(--orange);
}
.page-news .series-card--violet {
  border-left-color: var(--violet);
}
.page-news .series-card--mist {
  border-left-color: var(--mist);
}
.page-news .series__media {
  margin: 0;
}

/* ---------- 条目列表 ---------- */
.page-news .entry-list {
  position: relative;
  margin-top: 26px;
  border-top: 1px solid var(--line);
}
.page-news .entry-list::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
.page-news .entry {
  position: relative;
  padding: 22px 0 22px 30px;
  border-bottom: 1px solid var(--line);
}
.page-news .entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  width: 9px;
  height: 9px;
  background: var(--ink-900);
  border: 1px solid var(--cy);
  transition: background 0.2s ease;
}
.page-news .entry:hover::before {
  background: var(--cy);
}
.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.page-news .entry__no {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--orange);
}
.page-news .entry__when {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--mist);
}
.page-news .entry__title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.06rem;
  line-height: 1.5;
  color: var(--paper);
}
.page-news .entry__desc {
  max-width: 64ch;
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.78;
  color: var(--mist);
}
.page-news .latest__aside {
  width: min(100%, 340px);
  margin: clamp(28px, 5vw, 44px) 0 0 auto;
}
.page-news .latest__note {
  margin: 20px 0 0;
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--mist);
}
.page-news .latest__note a {
  color: var(--cy);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
}
.page-news .latest__note a:hover {
  border-bottom-color: var(--cy);
}

/* ---------- 纸白翻页块：阅读连续性 ---------- */
.page-news .section--paper {
  padding: clamp(24px, 4vw, 40px);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-paper);
}
.page-news .section--paper .section-label {
  color: var(--ink-800);
}
.page-news .section--paper .section-title {
  color: var(--black);
}
.page-news .section--paper p {
  color: rgba(10, 13, 22, 0.78);
}
.page-news .section--paper a {
  color: var(--ink-800);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 32, 74, 0.35);
}
.page-news .section--paper a:hover {
  border-bottom-color: var(--ink-800);
}
.page-news .carry {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 22px;
}
.page-news .carry__text p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
}
.page-news .carry__steps {
  counter-reset: cs;
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
}
.page-news .carry__steps li {
  counter-increment: cs;
  position: relative;
  padding-left: 42px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--black);
}
.page-news .carry__steps li::before {
  content: counter(cs, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-800);
  border-bottom: 1px solid rgba(22, 32, 74, 0.35);
}
.page-news .carry__hint {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(10, 13, 22, 0.14);
  font-size: 0.84rem;
}
.page-news .carry__media {
  margin: 0;
}

/* ---------- 选题协作 ---------- */
.page-news .contribute {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  margin-top: 24px;
}
.page-news .contribute__main > p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--mist);
}
.page-news .contribute__list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
}
.page-news .contribute__list li {
  padding: 14px 18px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--mist);
}
.page-news .contribute__list strong {
  margin-right: 8px;
  color: var(--paper);
  font-weight: 600;
}
.page-news .contribute__main .btn {
  margin-top: 24px;
}
.page-news .contribute__side {
  align-self: start;
  padding: 22px;
  background: var(--paper);
  color: var(--black);
  box-shadow: var(--shadow-paper);
}
.page-news .contribute__side > p {
  margin: 0 0 18px;
  font-size: 0.85rem;
  line-height: 1.8;
  color: rgba(10, 13, 22, 0.78);
}
.page-news .copy-field {
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid rgba(10, 13, 22, 0.14);
}
.page-news .copy-field-label {
  font-family: var(--font-narrow);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(10, 13, 22, 0.6);
}
.page-news .copy-field-value {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--black);
  word-break: break-all;
}
.page-news .contribute__side .btn--ghost {
  justify-self: start;
  border-color: rgba(10, 13, 22, 0.35);
  color: var(--black);
}
.page-news .contribute__side .btn--ghost:hover {
  border-color: var(--ink-800);
  background: rgba(22, 32, 74, 0.06);
}
.page-news .copy-field-hint {
  font-size: 0.72rem;
  color: rgba(10, 13, 22, 0.55);
}

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

@media (min-width: 860px) {
  .page-news .series {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }
  .page-news .carry {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }
  .page-news .contribute {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-news .rail-layout {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }
  .page-news .rail {
    display: block;
  }
}