.page-news {
  --news-rail: 268px;
  --news-gap: 56px;
  color: var(--fg);
}

/* ---------- 顶部：面包屑与刊头 ---------- */
.page-news .news-top {
  padding-top: 28px;
}

.page-news .news-top .breadcrumb {
  margin-bottom: 44px;
}

.page-news .news-masthead {
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line);
}

.page-news .masthead-kicker {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-news .news-masthead h1 {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(32px, 6.4vw, 68px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-news .masthead-lead {
  margin: 24px 0 0;
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(242, 232, 213, 0.82);
}

.page-news .masthead-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .masthead-meta li {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-news .masthead-meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  background: var(--lime);
  transform: rotate(45deg);
}

/* ---------- 主体：左索引 + 右文章流 ---------- */
.page-news .news-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
  padding-top: 48px;
  padding-bottom: 96px;
}

.page-news .news-rail {
  align-self: start;
}

.page-news .rail-block + .rail-block {
  margin-top: 34px;
}

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

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

.page-news .rail-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  border-left: 2px solid transparent;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  color: rgba(242, 232, 213, 0.78);
  text-decoration: none;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-news .rail-link i {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--vermilion);
}

.page-news .rail-link:hover,
.page-news .rail-link:focus-visible {
  background: rgba(30, 58, 95, 0.55);
  border-left-color: var(--orange);
  color: var(--cream);
}

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

.page-news .rail-tags a {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  font-size: 13px;
  color: rgba(242, 232, 213, 0.76);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .rail-tags a:hover,
.page-news .rail-tags a:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 106, 26, 0.1);
  color: var(--cream);
}

.page-news .rail-note {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(242, 232, 213, 0.68);
}

.page-news .rail-block--cta {
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(6, 16, 32, 0.55);
}

/* ---------- 章节通用 ---------- */
.page-news .news-section {
  padding-top: 56px;
}

.page-news .news-section:first-child {
  padding-top: 0;
}

.page-news .news-section + .news-section {
  margin-top: 12px;
}

.page-news .news-section .section-head {
  margin-bottom: 22px;
}

.page-news .section-lead {
  margin: 0 0 28px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(242, 232, 213, 0.76);
}

/* ---------- 标签与编号 ---------- */
.page-news .entry-tags {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
}

.page-news .tag-vermilion {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 2px;
  background: var(--vermilion);
  color: var(--brown);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-news .entry-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

/* ---------- 头条特稿 ---------- */
.page-news .news-feature {
  display: grid;
  gap: 28px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line);
}

.page-news .feature-title {
  margin: 0 0 16px;
  max-width: 26ch;
  font-size: clamp(25px, 3.6vw, 42px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--cream);
}

.page-news .feature-text {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: rgba(242, 232, 213, 0.8);
}

.page-news .feature-media {
  margin: 0;
}

.page-news .entry-foot {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

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

.page-news .entry {
  display: grid;
  gap: 18px;
  margin: 0 -16px;
  padding: 28px 16px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s var(--ease);
}

.page-news .entry:hover {
  background: rgba(30, 58, 95, 0.4);
}

.page-news .entry-title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.42;
  color: var(--cream);
}

.page-news .entry-text {
  margin: 0 0 12px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(242, 232, 213, 0.76);
}

.page-news .entry-thumb {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(140deg, rgba(30, 58, 95, 0.6), rgba(6, 16, 32, 0.9));
}

.page-news .entry-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 版本记录 ---------- */
.page-news .version-grid {
  display: grid;
  gap: 32px;
}

.page-news .version-list {
  min-width: 0;
}

.page-news .version-item {
  margin-bottom: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(6, 16, 32, 0.62);
}

.page-news .version-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .version-summary::after {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  margin-left: auto;
  border-right: 2px solid var(--amber);
  border-bottom: 2px solid var(--amber);
  transform: rotate(45deg);
  transition: transform 0.22s var(--ease);
}

.page-news .version-item[open] .version-summary::after {
  transform: rotate(-135deg);
}

.page-news .version-summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-news .version-badge {
  flex: none;
  padding: 3px 9px;
  border: 1px solid rgba(255, 176, 32, 0.44);
  border-radius: 2px;
  background: rgba(255, 176, 32, 0.16);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
}

.page-news .version-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--cream);
}

.page-news .version-body {
  padding: 4px 18px 20px;
  border-top: 1px solid var(--line);
}

.page-news .version-text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 232, 213, 0.76);
}

.page-news .version-changes {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .version-changes li {
  position: relative;
  padding: 9px 0 9px 20px;
  border-bottom: 1px dashed rgba(91, 114, 144, 0.26);
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(242, 232, 213, 0.74);
}

.page-news .version-changes li:last-child {
  border-bottom: 0;
}

.page-news .version-changes li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 17px;
  width: 6px;
  height: 6px;
  background: var(--lime);
  transform: rotate(45deg);
}

.page-news .version-foot {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(242, 232, 213, 0.7);
}

.page-news .version-media {
  margin: 0;
}

.page-news .version-media .media-frame {
  aspect-ratio: 12 / 7;
}

.page-news .inline-link {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

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

/* ---------- 专栏与合作 ---------- */
.page-news .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-news .partner-card {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(30, 58, 95, 0.5), rgba(6, 16, 32, 0.78));
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .partner-card:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
}

.page-news .partner-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-news .partner-title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--cream);
}

.page-news .partner-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 232, 213, 0.76);
}

.page-news .pitch-row {
  display: grid;
  gap: 20px;
  margin-top: 26px;
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--vermilion);
  border-radius: var(--radius-m);
  background: rgba(6, 16, 32, 0.55);
}

.page-news .pitch-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 600;
  color: var(--cream);
}

.page-news .pitch-text {
  margin: 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(242, 232, 213, 0.76);
}

.page-news .pitch-row .btn {
  justify-self: start;
}

/* ---------- 归档与检索 ---------- */
.page-news .archive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.page-news .archive-cell {
  padding: 12px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(6, 16, 32, 0.55);
  text-align: center;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .archive-cell:hover {
  background: rgba(30, 58, 95, 0.72);
  border-color: var(--orange);
}

.page-news .archive-round {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--lime);
}

.page-news .archive-note {
  display: block;
  margin-top: 5px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-news .archive-foot p {
  margin: 0 0 14px;
  max-width: 72ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(242, 232, 213, 0.76);
}

.page-news .archive-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 15px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .archive-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-news .entry--with-thumb {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

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

  .page-news .pitch-row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .page-news .pitch-row .btn {
    justify-self: end;
  }
}

@media (min-width: 1000px) {
  .page-news .news-shell {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: var(--news-gap);
    padding-top: 64px;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-news .version-grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 44px;
    align-items: start;
  }

  .page-news .archive-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (min-width: 1240px) {
  .page-news .feature-media {
    margin-right: -48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .partner-card,
  .page-news .archive-cell,
  .page-news .rail-link,
  .page-news .version-summary::after {
    transition: none;
  }

  .page-news .partner-card:hover {
    transform: none;
  }
}