.page-news {
  --news-rule: 1px solid var(--c-line);
  --news-rule-dark: 1px solid var(--c-line-dark);
  --news-rail-w: 220px;
  display: block;
}

/* ---------- 页头 ---------- */
.page-news .column-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-night);
  color: var(--c-on-dark);
  border-bottom: var(--news-rule-dark);
}

.page-news .column-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  pointer-events: none;
}

.page-news .column-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(6, 21, 39, .95) 0%, rgba(6, 21, 39, .80) 48%, rgba(11, 37, 69, .44) 100%);
  pointer-events: none;
}

.page-news .column-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(44px, 7vw, 92px);
  display: grid;
  gap: 16px;
  max-width: 900px;
}

.page-news .column-hero .eyebrow {
  margin: 0;
  color: var(--c-amber);
}

.page-news .column-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(var(--fs-28), 5vw, var(--fs-64));
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.14;
  color: #ffffff;
}

.page-news .column-hero .lede {
  margin: 0;
  max-width: 62ch;
  color: var(--c-on-dark-soft);
}

.page-news .hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: 10px 0 0;
  padding: 0;
  background: var(--c-line-dark);
  border: var(--news-rule-dark);
}

.page-news .hero-facts > div {
  background: rgba(6, 21, 39, .58);
  padding: 12px 14px;
}

.page-news .hero-facts dt {
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--c-on-dark-soft);
}

.page-news .hero-facts dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  color: var(--c-amber);
}

/* ---------- 面包屑 ---------- */
.page-news .crumbs {
  padding-top: 16px;
}

/* ---------- 栏目标签条 ---------- */
.page-news .tagbar {
  background: var(--c-surface);
  border-bottom: var(--news-rule);
}

.page-news .tagbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-block: 14px;
}

.page-news .tagbar__label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--c-text-mute);
  margin-right: 4px;
}

.page-news .tagbar__link {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--c-line-strong);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--c-text);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              background-color var(--t-fast) var(--ease);
}

.page-news .tagbar__link:hover,
.page-news .tagbar__link:focus-visible {
  border-color: var(--c-amber);
  color: var(--c-amber-ink);
  background: rgba(242, 169, 59, .12);
}

/* ---------- 主布局 ---------- */
.page-news .column-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  padding-block: var(--sec-y);
  align-items: start;
}

.page-news .column-stream {
  min-width: 0;
}

/* ---------- 左栏索引 ---------- */
.page-news .rail {
  align-self: start;
  border-top: 2px solid var(--c-ink);
  padding-top: 14px;
}

.page-news .rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--c-text-mute);
}

.page-news .rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .rail__item a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-size: var(--fs-14);
  color: var(--c-text-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              background-color var(--t-fast) var(--ease);
}

.page-news .rail__item a::before {
  content: "";
  flex: none;
  width: 6px;
  height: 1px;
  background: currentColor;
}

.page-news .rail__item a:hover,
.page-news .rail__item a:focus-visible {
  color: var(--c-ink);
  border-left-color: var(--c-amber);
  background: rgba(201, 209, 220, .24);
}

.page-news .rail__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: var(--news-rule);
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--c-text-mute);
}

/* ---------- 章节 ---------- */
.page-news .col-sec + .col-sec {
  margin-top: clamp(44px, 6vw, 78px);
}

.page-news .col-sec {
  scroll-margin-top: 110px;
}

.page-news .sec-head {
  display: grid;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--c-ink);
}

.page-news .sec-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--c-amber-ink);
}

.page-news .sec-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(var(--fs-28), 3.4vw, var(--fs-40));
  font-weight: 700;
  letter-spacing: -.015em;
  line-height: 1.2;
  color: var(--c-ink);
}

.page-news .sec-lede {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* ---------- 章节配图 ---------- */
.page-news .col-media {
  margin: clamp(20px, 3vw, 32px) 0 clamp(8px, 2vw, 16px);
  border: var(--news-rule);
  background: var(--c-mist);
}

.page-news .col-media--wide {
  width: 100%;
}

.page-news .col-media--right {
  width: min(100%, 560px);
  margin: clamp(26px, 4vw, 40px) 0 0 auto;
}

.page-news .col-media--left {
  width: min(100%, 520px);
  margin: clamp(20px, 3vw, 32px) 0 clamp(10px, 2vw, 18px);
}

/* ---------- 条目 ---------- */
.page-news .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 20px 4px 20px 14px;
  border-top: var(--news-rule);
  border-left: 2px solid transparent;
  transition: transform var(--t-base) var(--ease),
              border-color var(--t-fast) var(--ease),
              background-color var(--t-base) var(--ease);
}

.page-news .entry:last-child {
  border-bottom: var(--news-rule);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  border-left-color: var(--c-amber);
  background-color: rgba(201, 209, 220, .18);
  transform: translateY(-2px);
}

.page-news .entry__num {
  justify-self: start;
  align-self: start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  padding: 3px 8px;
  border: 1px solid var(--c-line-strong);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--c-navy);
  transition: background-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}

.page-news .entry:hover .entry__num,
.page-news .entry:focus-within .entry__num {
  background: var(--c-navy);
  border-color: var(--c-navy);
  color: var(--c-on-dark);
}

.page-news .entry__main {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .entry__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--fs-20);
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.4;
  color: var(--c-ink);
  overflow-wrap: break-word;
}

.page-news .entry__summary {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* ---------- 折叠补充 ---------- */
.page-news .entry__more {
  margin-top: 2px;
}

.page-news .entry__more > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--c-navy);
  border-bottom: 1px dashed var(--c-line-strong);
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}

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

.page-news .entry__more > summary::marker {
  content: "";
}

.page-news .entry__more > summary::before {
  content: "＋";
  font-size: var(--fs-12);
  color: var(--c-amber-ink);
}

.page-news .entry__more[open] > summary::before {
  content: "－";
}

.page-news .entry__more > summary:hover,
.page-news .entry__more > summary:focus-visible {
  color: var(--c-amber-ink);
  border-bottom-color: var(--c-amber);
}

.page-news .entry__notes {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 0 14px;
  display: grid;
  gap: 8px;
  border-left: 2px solid var(--c-line-strong);
}

.page-news .entry__notes li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--c-text-soft);
}

.page-news .entry__notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 8px;
  height: 1px;
  background: var(--c-amber);
}

.page-news .entry__more[open] .entry__notes {
  animation: news-reveal var(--t-base) var(--ease);
}

@keyframes news-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 常查记录观察 ---------- */
.page-news .obs-figure {
  display: grid;
  gap: 6px;
  margin: clamp(20px, 3vw, 30px) 0 4px;
  padding: 18px 20px;
  background: var(--c-surface);
  border: var(--news-rule);
  border-left: 4px solid var(--c-amber);
}

.page-news .obs-figure__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-40);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-amber-ink);
}

.page-news .obs-figure__label {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* ---------- 来信与勘误 ---------- */
.page-news .letter-panel {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3.5vw, 34px);
  padding: clamp(20px, 3vw, 34px);
  background: var(--c-paper);
  border: var(--news-rule);
}

.page-news .erratum-tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--c-brick);
}

.page-news .letter-panel__text {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--c-text);
}

.page-news .press-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
  background: var(--c-surface);
  border-left: 3px solid var(--c-green);
}

.page-news .press-note__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-40);
  line-height: 1;
  color: var(--c-green-ink);
}

.page-news .press-note__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-text-soft);
}

.page-news .contact-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  font-size: var(--fs-14);
}

.page-news .contact-lines li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-top: 1px dashed var(--c-line-strong);
  color: var(--c-text);
}

.page-news .contact-lines .k {
  min-width: 72px;
  font-family: var(--font-mono);
  color: var(--c-text-mute);
}

.page-news .letter-panel__foot {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-news .entry {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 0 20px;
    padding: 24px 8px 24px 20px;
  }

  .page-news .entry__num {
    margin-top: 2px;
  }
}

@media (min-width: 1000px) {
  .page-news .column-layout {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-news .rail {
    position: sticky;
    top: 120px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry__num,
  .page-news .tagbar__link,
  .page-news .rail__item a {
    transition: none;
  }

  .page-news .entry:hover,
  .page-news .entry:focus-within {
    transform: none;
  }

  .page-news .entry__more[open] .entry__notes {
    animation: none;
  }
}