.page-news {
  --news-rail: 264px;
  --news-gap: clamp(20px, 4vw, 48px);
  padding-bottom: clamp(36px, 6vw, 80px);
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-news .news-crumb a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1.5px solid var(--line);
}

.page-news .news-crumb a:hover,
.page-news .news-crumb a:focus-visible {
  color: var(--seal);
  border-bottom-color: var(--seal);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: 22px 0 0;
}

.page-news .news-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.page-news .news-hero__lead {
  max-width: 68ch;
  margin: 16px 0 0;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .news-hero::after {
  content: "";
  display: block;
  height: 14px;
  margin-top: 28px;
  background: linear-gradient(
    104deg,
    var(--season) 0 40%,
    var(--season-2) 40% 63%,
    var(--seal) 63% 76%,
    var(--ink) 76% 100%
  );
}

/* ---------- 置顶条目 ---------- */
.page-news .news-top {
  display: grid;
  gap: 28px;
  padding: 40px 0 44px;
}

.page-news .news-top__body {
  position: relative;
  padding: clamp(22px, 3vw, 36px);
  background: var(--paper-2);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-news .news-top__stamp {
  position: absolute;
  top: -18px;
  right: 20px;
  transform: rotate(-2deg);
}

.page-news .news-top__body h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.32;
}

.page-news .news-top__body p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
}

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

/* ---------- 筛选 + 条目流 ---------- */
.page-news .news-stream {
  display: grid;
  gap: 34px;
  padding: 42px 0 8px;
  border-top: 2px solid var(--ink);
}

.page-news .news-stream__rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

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

.page-news .news-stream__rail .filter-btn {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.2;
  padding: 7px 13px;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.page-news .news-stream__rail .filter-btn:hover {
  transform: translate(-1px, -1px);
}

.page-news .news-stream__rail .filter-btn.is-active {
  background: var(--season);
  color: var(--season-on);
}

.page-news .news-ticks {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-news .news-ticks li {
  border-bottom: 1px solid var(--line);
}

.page-news .news-ticks a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
}

.page-news .news-ticks a:hover,
.page-news .news-ticks a:focus-visible {
  color: var(--seal);
}

/* ---------- 季度分组 ---------- */
.page-news .news-group {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-news .news-group + .news-group {
  margin-top: 46px;
}

.page-news .news-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink);
}

.page-news .news-group__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 3px 9px;
  background: var(--season);
  color: var(--season-on);
  box-shadow: var(--shadow-soft);
}

.page-news .news-group__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.4;
}

.page-news .news-group[data-seasons="spring"] .news-group__num {
  background: var(--spring);
  color: var(--ink);
}

.page-news .news-group[data-seasons="summer"] .news-group__num {
  background: var(--summer);
  color: var(--paper);
}

.page-news .news-group[data-seasons="autumn"] .news-group__num {
  background: var(--autumn);
  color: var(--paper);
}

.page-news .news-group[data-seasons="winter"] .news-group__num {
  background: var(--winter);
  color: var(--ink);
}

/* ---------- 单条记录 ---------- */
.page-news .news-list {
  margin-top: 4px;
}

.page-news .news-entry {
  padding: 22px 2px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-entry__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-news .news-entry__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 20px);
  line-height: 1.5;
}

.page-news .news-entry p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

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

.page-news .news-entry__more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--seal);
}

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

.page-news .news-entry__more summary::before {
  content: "＋ ";
}

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

.page-news .news-entry__more p {
  margin-top: 10px;
  padding: 10px 0 0 14px;
  border-left: 2px solid var(--season);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 价格表 ---------- */
.page-news .news-price,
.page-news .news-timeline,
.page-news .news-cols,
.page-news .news-archive {
  padding: 46px 0 4px;
}

.page-news .news-price__caption {
  padding: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  text-align: left;
}

.page-news .news-price .table thead th {
  background: var(--season);
  color: var(--season-on);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13.5px;
  text-align: left;
}

.page-news .news-price .table tbody tr:nth-child(even) {
  background: var(--paper-2);
}

.page-news .news-price .table tbody td {
  font-size: 14.5px;
  line-height: 1.72;
  vertical-align: top;
}

.page-news .news-price .table td.num {
  white-space: nowrap;
}

/* ---------- 图片通用 ---------- */
.page-news .figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 版本时间轴 ---------- */
.page-news .news-timeline__band {
  margin: 0 0 32px;
}

.page-news .news-tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 2px solid var(--ink);
}

.page-news .news-tl__item {
  position: relative;
  padding: 0 0 32px 0;
}

.page-news .news-tl__item:last-child {
  padding-bottom: 0;
}

.page-news .news-tl__item::before {
  content: "";
  position: absolute;
  left: -19px;
  top: 5px;
  width: 12px;
  height: 12px;
  background: var(--season);
  border: 2px solid var(--ink);
}

.page-news .news-tl__item:nth-child(5)::before {
  background: var(--seal);
}

.page-news .news-tl__ver {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--seal);
}

.page-news .news-tl__title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.45;
}

.page-news .news-tl__item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 内容栏目 ---------- */
.page-news .news-cols__grid {
  display: grid;
  gap: 2px;
  background: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-news .news-col {
  background: var(--paper);
  padding: 22px 20px 24px;
}

.page-news .news-col__freq {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--seal);
}

.page-news .news-col__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
}

.page-news .news-col p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 历史版本 ---------- */
.page-news .news-archive__grid {
  display: grid;
  gap: 26px;
}

.page-news .news-archive__figure {
  margin: 0;
}

.page-news .news-archive__title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.3;
}

.page-news .news-archive__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-news .news-archive__list li {
  padding: 14px 2px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-news .news-archive__list strong {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: var(--ink);
}

/* ---------- 年末收束 ---------- */
.page-news .news-tail {
  display: grid;
  gap: 24px;
  align-items: center;
  padding: 46px 0 0;
}

.page-news .news-tail__figure {
  margin: 0;
}

.page-news .news-tail__body {
  padding: clamp(20px, 3vw, 32px);
  background: var(--paper-2);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-news .news-tail__body p {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .news-tail__body a {
  color: var(--seal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-cols__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-news .news-archive__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: var(--news-gap);
    align-items: start;
  }

  .page-news .news-tail {
    grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
    gap: var(--news-gap);
  }
}

@media (min-width: 900px) {
  .page-news .news-top {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .news-stream {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
  }

  .page-news .news-stream__rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }
}

@media (min-width: 1080px) {
  .page-news .news-cols__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-stream__rail .filter-btn {
    transition: none;
  }
}