.page-news {
  background: var(--pearl);
  --news-rail-w: 316px;
}

.page-news img {
  max-width: 100%;
  height: auto;
}

.page-news figure {
  margin: 0;
}

.page-news .frame {
  border: 1px solid var(--line);
  background: var(--pearl-2);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-news .frame img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .section {
  padding-block: clamp(46px, 7.5vw, 92px);
}

/* ---------- 面包屑 ---------- */

.page-news .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0 0 clamp(26px, 4.5vw, 48px);
  padding: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(246, 244, 239, 0.62);
}

.page-news .crumbs li + li::before {
  content: "/";
  margin: 0 10px;
  color: rgba(168, 211, 208, 0.55);
}

.page-news .crumbs a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .crumbs a:hover {
  color: var(--gold-2);
  border-bottom-color: var(--gold-2);
}

.page-news .crumbs [aria-current="page"] {
  color: var(--pearl);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  color: var(--pearl);
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(44px, 6.5vw, 84px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -34%;
  right: -16%;
  width: 70%;
  height: 170%;
  background: linear-gradient(155deg, var(--ink-2) 0%, var(--ink-2) 34%, rgba(18, 60, 86, 0) 84%);
  transform: rotate(7deg);
  pointer-events: none;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  bottom: -24%;
  left: -10%;
  width: 52%;
  height: 78%;
  background: radial-gradient(circle at 34% 42%, rgba(46, 140, 140, 0.42), rgba(46, 140, 140, 0) 68%);
  pointer-events: none;
}

.page-news .hero-grid {
  display: grid;
  gap: clamp(26px, 4.5vw, 44px);
}

.page-news .news-hero .eyebrow {
  color: var(--gold-2);
}

.page-news .news-hero h1 {
  margin: 12px 0 0;
  max-width: 18ch;
  font-size: clamp(1.95rem, 5.4vw, 3.9rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--pearl);
}

.page-news .news-hero .lede {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  max-width: 60ch;
  font-size: clamp(0.98rem, 1.15vw, 1.1rem);
  line-height: 1.82;
  color: rgba(246, 244, 239, 0.84);
}

.page-news .hero-aside {
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
}

.page-news .hero-aside-label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(168, 211, 208, 0.72);
}

.page-news .hero-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .hero-meta li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-dark);
}

.page-news .hero-meta li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.page-news .hm-key {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: rgba(168, 211, 208, 0.88);
}

.page-news .hm-val {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--pearl);
}

.page-news .hm-val--gold {
  color: var(--gold-2);
}

.page-news .hm-val--gold::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--gold);
  vertical-align: middle;
  animation: news-pulse 2.4s ease-in-out infinite;
}

@keyframes news-pulse {
  0%,
  100% {
    opacity: 0.34;
  }
  50% {
    opacity: 1;
  }
}

/* ---------- 本轮要点 ---------- */

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

.page-news .brief {
  padding: clamp(18px, 2.8vw, 26px) 0;
  border-top: 1px solid var(--line);
}

.page-news .brief:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .brief-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lake);
}

.page-news .brief-title {
  margin: 10px 0 0;
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
  font-weight: 700;
  line-height: 1.44;
  color: var(--ink);
}

.page-news .brief-body {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 0.97rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .brief-foot {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-news .brief-figure {
  margin-top: clamp(24px, 4vw, 34px);
}

/* ---------- 条目列表 + 侧栏 ---------- */

.page-news .news-board {
  display: block;
}

.page-news .stream-figure {
  margin: clamp(20px, 3vw, 28px) 0;
}

.page-news .filter-row {
  padding-bottom: clamp(16px, 2.4vw, 22px);
  border-bottom: 1px solid var(--line);
}

.page-news .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
}

.page-news .entry {
  border-top: 1px solid var(--line);
  transition: background-color 0.24s var(--ease);
}

.page-news .entry:hover {
  background: linear-gradient(90deg, rgba(46, 140, 140, 0.07), rgba(46, 140, 140, 0) 68%);
}

.page-news .entry details > summary {
  position: relative;
  display: block;
  padding: 18px 34px 18px 4px;
  list-style: none;
  cursor: pointer;
}

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

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

.page-news .entry summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 26px;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--mist);
  border-bottom: 1.5px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-news .entry details[open] summary::after {
  transform: rotate(225deg);
  border-color: var(--gold);
}

.page-news .entry-num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--lake);
}

.page-news .entry-title {
  display: block;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  font-weight: 600;
  line-height: 1.52;
  color: var(--graphite);
}

.page-news .entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 10px;
}

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

.page-news .entry-body {
  margin: 0;
  padding: 0 34px 20px 4px;
  max-width: 68ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 侧栏 ---------- */

.page-news .news-rail {
  margin-top: clamp(30px, 5vw, 44px);
}

.page-news .rail-panel {
  padding: 18px 0;
  border-top: 2px solid var(--ink);
}

.page-news .rail-panel + .rail-panel {
  margin-top: 18px;
}

.page-news .rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

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

.page-news .rail-index li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
}

.page-news .rail-index li:last-child {
  border-bottom: none;
}

.page-news .rail-index a {
  color: var(--graphite);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-news .rail-index a:hover {
  color: var(--lake);
}

.page-news .rail-index .mono {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--lake);
}

.page-news .rail-ways {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .rail-ways li {
  position: relative;
  padding-left: 16px;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-news .rail-ways li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 1px;
  background: var(--lake-2);
}

.page-news .rail-ways strong {
  color: var(--ink);
  font-weight: 600;
  margin-right: 4px;
}

.page-news .rail-top {
  margin-top: 18px;
  width: 100%;
  text-align: center;
}

/* ---------- 按编号回溯 ---------- */

.page-news .section--ink .eyebrow {
  color: var(--gold-2);
}

.page-news .section--ink .section-title {
  color: var(--pearl);
}

.page-news .section--ink .section-note {
  color: rgba(246, 244, 239, 0.72);
}

.page-news .lookup-steps {
  list-style: none;
  margin: clamp(24px, 3.6vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-news .lookup-steps li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  line-height: 1.78;
  color: rgba(246, 244, 239, 0.8);
}

.page-news .lookup-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 14px;
  height: 1px;
  background: var(--lake);
}

.page-news .step-num {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-2);
}

.page-news .section--ink .frame {
  border-color: var(--line-dark);
  background: var(--ink-2);
  margin-top: clamp(24px, 3.6vw, 34px);
}

/* ---------- 往期归档 ---------- */

.page-news .archive-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-bottom: clamp(24px, 3.4vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .archive-stat {
  padding: clamp(16px, 2.4vw, 24px) clamp(14px, 2vw, 20px);
  background: var(--pearl);
}

.page-news .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .stat-key {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

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

.page-news .archive-axis li {
  position: relative;
  padding: 0 0 26px 26px;
  border-left: 1px solid var(--line);
}

.page-news .archive-axis li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-news .archive-axis li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lake);
  box-shadow: 0 0 0 3px var(--pearl-2);
}

.page-news .axis-mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--lake);
}

.page-news .axis-title {
  display: block;
  margin-top: 6px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.page-news .axis-note {
  display: block;
  margin-top: 6px;
  max-width: 46ch;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-news .section--pearl-2 .frame {
  margin-top: clamp(24px, 3.4vw, 34px);
}

/* ---------- 订阅与提醒 ---------- */

.page-news .sub-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: substep;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .sub-steps li {
  background: var(--pearl-2);
  padding: clamp(20px, 3vw, 26px) clamp(16px, 2.4vw, 24px);
  counter-increment: substep;
}

.page-news .sub-steps li::before {
  content: counter(substep, decimal-leading-zero);
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-news .sub-steps h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .sub-steps p {
  margin: 8px 0 0;
  max-width: 54ch;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .sub-tail {
  margin: clamp(24px, 3.6vw, 34px) 0 0;
  padding-top: clamp(16px, 2.6vw, 24px);
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
  line-height: 1.82;
  color: var(--mist);
}

.page-news .sub-tail a,
.page-news .sub-steps a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--lake-2);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .sub-tail a:hover,
.page-news .sub-steps a:hover {
  color: var(--lake);
  border-bottom-color: var(--gold);
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-news .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(36px, 6vw, 78px);
    align-items: end;
  }

  .page-news .hero-aside {
    padding-top: 0;
    padding-left: 22px;
    border-top: none;
    border-left: 2px solid var(--lake);
  }

  .page-news .brief-figure {
    position: sticky;
    top: 104px;
    margin-top: 0;
  }
}

@media (min-width: 980px) {
  .page-news .news-board {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--news-rail-w);
    gap: clamp(32px, 4.5vw, 64px);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 96px;
    margin-top: 0;
  }
}

@media (max-width: 979px) {
  .page-news .rail-index {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: thin;
  }

  .page-news .rail-index li {
    flex: 0 0 auto;
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
  }

  .page-news .rail-index li:last-child {
    border-bottom: 1px solid var(--line);
  }

  .page-news .rail-index .mono {
    display: none;
  }
}

@media (max-width: 719px) {
  .page-news .entry details > summary {
    padding-right: 30px;
  }

  .page-news .entry-body {
    padding-right: 12px;
  }

  .page-news .archive-axis li {
    padding-left: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .hm-val--gold::before {
    animation: none;
    opacity: 0.85;
  }

  .page-news .entry summary::after {
    transition: none;
  }
}