.page-news {
  --news-sticky-top: 96px;
  --news-zebra: rgba(231, 220, 198, 0.42);
}

/* ---------- 页头 ---------- */
.page-news .news-hero {
  border-top: var(--hair);
  border-bottom: var(--hair);
  background: linear-gradient(180deg, rgba(244, 232, 209, 0.92) 0%, rgba(251, 246, 236, 0.96) 100%);
}

.page-news .news-hero-inner {
  padding-top: clamp(26px, 4.4vw, 54px);
  padding-bottom: clamp(22px, 3vw, 36px);
}

.page-news .news-hero-inner h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  max-width: 20em;
}

.page-news .news-lede {
  margin: clamp(16px, 2vw, 22px) 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--graphite);
}

.page-news .news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--graphite);
}

.page-news .news-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-news .news-meta span::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--gold);
  flex: none;
}

.page-news .hero-media {
  border-top: var(--hair);
  background: var(--ink);
}

.page-news .hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

/* ---------- 主体网格 ---------- */
.page-news .news-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-top: clamp(26px, 4vw, 52px);
  padding-bottom: clamp(50px, 7vw, 96px);
}

/* ---------- 侧栏索引 ---------- */
.page-news .news-index-inner {
  display: grid;
  gap: 16px;
}

.page-news .index-card {
  background: var(--paper);
  border: var(--hair);
  border-top: 2px solid var(--gold);
  padding: 16px 16px 18px;
}

.page-news .index-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}

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

.page-news .index-list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-news .index-list li:last-child a {
  border-bottom: 0;
  padding-bottom: 2px;
}

.page-news .index-list a:hover,
.page-news .index-list a:focus-visible {
  color: var(--gold-deep);
}

.page-news .index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-deep);
  flex: none;
}

.page-news .index-card--dark {
  background: var(--ink-gold);
  border-color: rgba(201, 162, 39, 0.45);
  border-top-color: var(--gold);
  color: var(--paper);
}

.page-news .index-card--dark .index-label {
  color: var(--gold);
}

.page-news .index-stats {
  margin: 0 0 16px;
  display: grid;
  gap: 8px;
}

.page-news .index-stats > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 7px;
  border-bottom: 1px dashed rgba(217, 201, 166, 0.32);
}

.page-news .index-stats dt {
  font-size: 13.5px;
  color: rgba(251, 246, 236, 0.8);
}

.page-news .index-stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold);
}

.page-news .index-card--dark .copy-btn {
  width: 100%;
  justify-content: center;
}

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

.page-news .index-tags a {
  text-decoration: none;
}

/* ---------- 批次带 ---------- */
.page-news .batch-band {
  border: var(--hair);
  border-left: 3px solid var(--gold);
  background: var(--paper);
  padding: 16px 16px 14px;
}

.page-news .batch-band-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: 12px;
}

.page-news .batch-code {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(20px, 3vw, 26px);
  letter-spacing: 0.02em;
}

.page-news .batch-note {
  font-size: 13.5px;
  color: var(--graphite);
}

.page-news .scale-bar {
  height: 12px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 12px);
}

/* ---------- 章节 ---------- */
.page-news .stream-section {
  scroll-margin-top: 92px;
  margin-top: clamp(38px, 5vw, 66px);
  padding-top: clamp(26px, 3.4vw, 42px);
  border-top: 1px solid var(--line);
}

.page-news .stream-section#overview {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-news .section-head h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(20px, 2.9vw, 30px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  margin: 6px 0 0;
}

.page-news .section-head .eyebrow {
  margin: 0;
}

.page-news .head-text {
  min-width: 0;
}

/* ---------- 概览要点 ---------- */
.page-news .brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--hair);
}

.page-news .brief-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 2px;
  border-bottom: var(--hair);
}

.page-news .brief-num {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  flex: none;
}

.page-news .brief-list p {
  margin: 3px 0 0;
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 列表与条目 ---------- */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--hair);
}

.page-news .news-item {
  border-bottom: var(--hair);
}

.page-news .news-item:nth-child(odd) {
  background: var(--news-zebra);
}

.page-news .news-item > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 16px;
  padding: 14px 14px 15px;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s var(--ease);
}

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

.page-news .news-item > summary:hover {
  background: rgba(201, 162, 39, 0.14);
}

.page-news .news-item > summary:focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: -2px;
}

.page-news .news-item[open] > summary {
  background: rgba(201, 162, 39, 0.1);
}

.page-news .item-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  min-width: 0;
}

.page-news .item-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--gold-deep);
}

.page-news .item-title {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
}

.page-news .item-time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--graphite);
  white-space: nowrap;
  padding-top: 3px;
}

.page-news .item-note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--graphite);
}

.page-news .item-detail {
  padding: 14px;
  background: var(--paper);
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-news .item-detail a {
  color: var(--gold-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图文错位 ---------- */
.page-news .section-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

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

/* ---------- 专题合辑 ---------- */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-news .topic-card {
  background: var(--paper);
  border: var(--hair);
  border-left: 3px solid var(--gold);
  padding: 18px 18px 20px;
}

.page-news .topic-card h3 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.45;
  margin: 0 0 6px;
}

.page-news .topic-desc {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-news .topic-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .topic-card li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.68;
}

.page-news .topic-code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--gold-deep);
  padding-top: 2px;
}

/* ---------- 更新提醒 ---------- */
.page-news .subscribe-band {
  margin-top: clamp(38px, 5vw, 66px);
  padding: clamp(24px, 3.4vw, 42px);
  background: var(--ink);
  border-top: 2px solid var(--gold);
  color: var(--paper);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-news .subscribe-band h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(21px, 2.9vw, 29px);
  line-height: 1.35;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-news .subscribe-band p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(251, 246, 236, 0.82);
}

.page-news .subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: start;
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .page-news .news-item > summary {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .item-time {
    padding-top: 0;
  }

  .page-news .news-meta {
    gap: 8px 18px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-news .section-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    gap: 38px;
  }

  .page-news .section-split--flip {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.35fr);
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-news .topic-card:first-child {
    grid-column: 1 / -1;
  }

  .page-news .subscribe-band {
    grid-template-columns: minmax(0, 1.4fr) auto;
    align-items: center;
    gap: 44px;
  }
}

@media (min-width: 1000px) {
  .page-news .news-body {
    grid-template-columns: 296px minmax(0, 1fr);
    gap: clamp(44px, 5vw, 68px);
  }

  .page-news .news-index-inner {
    position: sticky;
    top: var(--news-sticky-top);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item > summary,
  .page-news .index-list a {
    transition: none;
  }
}