.page-news {
  --news-gap: clamp(20px, 3vw, 38px);
  --news-line: rgba(16, 20, 24, 0.14);
  --news-line-dark: rgba(201, 162, 39, 0.24);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: clamp(26px, 5vw, 56px);
  padding-bottom: clamp(34px, 6vw, 74px);
}

.page-news .news-hero-inner {
  max-width: 920px;
  margin-top: clamp(20px, 3vh, 34px);
}

.page-news h1.display-1 {
  margin: 16px 0 20px;
}

.page-news .lede {
  max-width: 64ch;
  font-size: clamp(16px, 1.6vw, 17.5px);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4.5vw, 48px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--news-line-dark);
  border-left: 1px solid var(--news-line-dark);
}

.page-news .news-stats li {
  padding: 16px 18px 18px;
  border-right: 1px solid var(--news-line-dark);
  border-bottom: 1px solid var(--news-line-dark);
}

.page-news .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-news .stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 章节索引条 ---------- */
.page-news .news-rail {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  background: rgba(11, 30, 51, 0.94);
  border-bottom: 1px solid var(--news-line-dark);
}

.page-news .news-rail-inner {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 9px;
  padding-bottom: 9px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-rail-inner::-webkit-scrollbar {
  display: none;
}

.page-news .news-rail-label {
  flex: 0 0 auto;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-news .anchor-link {
  flex: 0 0 auto;
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-news .anchor-link:hover {
  color: var(--paper);
  border-color: var(--news-line-dark);
}

.page-news .anchor-link[aria-current="true"] {
  color: var(--sea-900);
  background: var(--gold);
  border-color: var(--gold);
}

/* ---------- 通用段落 ---------- */
.page-news .news-intro {
  max-width: 62ch;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.78;
}

.page-news .news-intro--onDark {
  color: var(--mist);
}

.page-news .grid-16 {
  row-gap: var(--news-gap);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm {
  padding-top: clamp(44px, 7vw, 82px);
  padding-bottom: clamp(44px, 7vw, 82px);
}

.page-news .cat-list {
  list-style: none;
  margin: clamp(26px, 3.5vw, 38px) 0 0;
  padding: 0;
}

.page-news .cat-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 16px;
  padding: 22px 0;
  border-top: 1px solid var(--news-line);
}

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

.page-news .cat-code {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
}

.page-news .cat-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 21px);
  font-weight: 800;
  color: var(--ink);
}

.page-news .cat-body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
}

.page-news .news-schedule {
  display: grid;
  gap: clamp(20px, 3vw, 28px);
  align-content: start;
}

.page-news .schedule-card {
  padding: clamp(22px, 3vw, 28px);
  border: 1px solid var(--news-line);
}

.page-news .schedule-day {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}

.page-news .schedule-time {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 6vw, 42px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-news .schedule-note {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-news .schedule-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--news-line);
  display: grid;
  gap: 11px;
  font-size: 14.5px;
  line-height: 1.68;
}

.page-news .schedule-list li {
  display: flex;
  gap: 11px;
}

.page-news .schedule-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  background: var(--gold);
}

.page-news .schedule-figure {
  margin: 0;
}

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

.page-news .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
}

/* ---------- 近期报告 ---------- */
.page-news .news-latest {
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(44px, 7vw, 80px);
}

.page-news .latest-head {
  display: grid;
  gap: 12px;
  align-items: end;
}

.page-news .latest-head .note {
  margin: 0;
}

.page-news .report-index {
  position: relative;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-news .filter-chip {
  cursor: pointer;
  padding: 7px 15px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--ink);
  background: transparent;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-news .filter-chip:hover {
  border-color: var(--gold-deep);
}

.page-news #rf-all:checked ~ .filter-bar label[for="rf-all"],
.page-news #rf-board:checked ~ .filter-bar label[for="rf-board"],
.page-news #rf-version:checked ~ .filter-bar label[for="rf-version"],
.page-news #rf-index:checked ~ .filter-bar label[for="rf-index"],
.page-news #rf-series:checked ~ .filter-bar label[for="rf-series"] {
  background: var(--sea);
  border-color: var(--sea);
  color: var(--paper);
}

.page-news #rf-board:checked ~ .report-list .report-row:not([data-cat="board"]),
.page-news #rf-version:checked ~ .report-list .report-row:not([data-cat="version"]),
.page-news #rf-index:checked ~ .report-list .report-row:not([data-cat="index"]),
.page-news #rf-series:checked ~ .report-list .report-row:not([data-cat="series"]) {
  display: none;
}

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

.page-news .report-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "issue tag"
    "title title";
  gap: 8px 14px;
  padding: 16px 12px 16px 14px;
  border-bottom: 1px solid var(--news-line);
  transition: background-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-news .report-row:hover {
  background: rgba(201, 162, 39, 0.1);
  box-shadow: inset 3px 0 0 var(--gold);
}

.page-news .report-issue {
  grid-area: issue;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--gold-deep);
}

.page-news .report-title {
  grid-area: title;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-news .report-row .tag {
  grid-area: tag;
  justify-self: end;
  align-self: center;
}

/* ---------- 旧版本资料区 ---------- */
.page-news .news-archive {
  padding-top: clamp(44px, 7vw, 84px);
  padding-bottom: clamp(44px, 7vw, 84px);
}

.page-news .archive-points {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-news .archive-points li {
  display: flex;
  gap: 12px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-news .archive-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 14px;
  height: 1px;
  margin-top: 13px;
  background: var(--gold);
}

.page-news .archive-path {
  margin-top: clamp(24px, 3.5vw, 34px);
  padding: 22px 22px 24px;
  background: var(--sea-700);
  border-left: 3px solid var(--gold);
}

.page-news .archive-path-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-news .archive-path ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 9px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .archive-path li::marker {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-news .archive-cta {
  margin: 28px 0 0;
}

.page-news .archive-figure {
  margin: 0;
  align-self: start;
}

/* ---------- 版本对照 ---------- */
.page-news .news-versions {
  padding-top: clamp(44px, 7vw, 84px);
  padding-bottom: clamp(44px, 7vw, 84px);
}

.page-news .version-head {
  margin-top: clamp(24px, 3.5vw, 38px);
}

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

.page-news .version-head-text .news-intro {
  margin-top: 0;
}

.page-news .version-track {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
}

.page-news .version-node {
  padding: 6px 13px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
  border: 1px solid var(--news-line);
}

.page-news .version-node--current {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--sea-900);
  font-weight: 700;
}

.page-news .version-arrow {
  color: var(--gold-deep);
  font-size: 14px;
}

.page-news .diff-table {
  margin-top: clamp(30px, 4vw, 46px);
  border-top: 1px solid var(--news-line);
}

.page-news .diff-row {
  padding: 24px 0 22px;
  border-bottom: 1px solid var(--news-line);
}

.page-news .diff-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  color: var(--ink);
}

.page-news .diff-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.page-news .diff-cols {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.page-news .diff-cell {
  padding: 16px 18px;
  border: 1px solid var(--news-line);
  background: rgba(216, 207, 190, 0.3);
}

.page-news .diff-cell--old {
  border-left: 3px solid var(--paper-dim);
}

.page-news .diff-cell--new {
  border-left: 3px solid var(--gold);
  background: rgba(201, 162, 39, 0.1);
}

.page-news .diff-label {
  display: block;
  margin-bottom: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.page-news .diff-cell p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
}

.page-news .diff-more {
  margin-top: 14px;
}

/* ---------- 时间轴 ---------- */
.page-news .news-timeline {
  padding-top: clamp(44px, 7vw, 84px);
  padding-bottom: clamp(44px, 7vw, 84px);
  overflow: hidden;
}

.page-news .timeline-scroll {
  margin-top: clamp(28px, 4vw, 44px);
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-news .timeline {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0 var(--gutter);
  min-width: max-content;
}

.page-news .tl-node {
  flex: 0 0 min(232px, 68vw);
  padding-right: 26px;
}

.page-news .tl-issue {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-news .tl-mark {
  position: relative;
  display: block;
  height: 1px;
  margin: 14px 0 18px;
  background: var(--news-line-dark);
}

.page-news .tl-mark::before {
  content: "";
  position: absolute;
  left: 0;
  top: -4px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--sea-900);
  border: 2px solid var(--gold);
}

.page-news .tl-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--mist);
}

.page-news .timeline-figure {
  margin: clamp(30px, 4.5vw, 48px) 0 0;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding-top: clamp(44px, 7vw, 84px);
  padding-bottom: clamp(48px, 8vw, 92px);
}

.page-news .series-grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(26px, 4vw, 38px);
}

.page-news .series-card {
  padding: 22px 22px 24px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--news-line);
  box-shadow: 4px 4px 0 rgba(216, 207, 190, 0.85);
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-news .series-card:hover {
  border-color: var(--gold);
  box-shadow: 4px 4px 0 rgba(201, 162, 39, 0.4);
}

.page-news .series-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-news .series-card h3 {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--ink);
}

.page-news .series-card p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.74;
}

.page-news .series-foot {
  margin-top: clamp(26px, 3.5vw, 36px);
  padding-top: 22px;
  border-top: 1px solid var(--news-line);
}

.page-news .series-foot p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-news .series-foot a {
  color: var(--gold-deep);
  text-decoration: none;
  padding-bottom: 3px;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 260ms var(--ease), color 200ms var(--ease);
}

.page-news .series-foot a:hover {
  color: var(--ink);
  background-size: 100% 1px;
}

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

  .page-news .latest-head {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-news .report-row {
    grid-template-columns: 128px minmax(0, 1fr) auto;
    grid-template-areas: "issue title tag";
    align-items: center;
    gap: 6px 18px;
    padding: 17px 16px 17px 18px;
  }

  .page-news .diff-cols {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .news-archive .archive-figure {
    margin-top: 8px;
  }

  .page-news .cat-item {
    padding: 24px 0;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}