.page-news {
  --news-line: rgba(15, 61, 46, .14);
  --news-line-paper: rgba(247, 244, 236, .18);
  --news-gold-soft: rgba(201, 162, 39, .16);
  padding-bottom: clamp(40px, 7vw, 88px);
  overflow-x: clip;
}

/* 面包屑 */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: clamp(16px, 2.6vw, 26px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--rock);
}

.page-news .breadcrumb a {
  color: var(--ink-green);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 1px;
  transition: color .2s ease, border-color .2s ease;
}

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

/* 首屏框景 */
.page-news .news-hero {
  padding-top: clamp(14px, 2.4vw, 28px);
}

.page-news .news-hero__frame {
  padding: clamp(22px, 4.4vw, 52px);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(201, 162, 39, .16), transparent 58%),
    linear-gradient(180deg, var(--paper-2), var(--paper));
}

.page-news .news-hero__inner {
  display: grid;
  gap: clamp(12px, 2vw, 20px);
  max-width: 76ch;
}

.page-news .news-hero__inner .lead {
  margin: 0;
  color: var(--text-soft);
}

.page-news .news-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(6px, 1.6vw, 14px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--news-line);
  border: 1px solid var(--news-line);
}

.page-news .news-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 15px;
  background: var(--paper);
}

.page-news .news-hero__k {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-news .news-hero__v {
  font-size: 14px;
  color: var(--text-soft);
}

/* 侧栏锚点 */
.page-news .layout {
  padding-top: clamp(26px, 4.6vw, 54px);
}

.page-news .rail-nav {
  display: grid;
  gap: 10px;
  padding-top: 16px;
  border-top: 2px solid var(--ink-green);
}

.page-news .rail-nav__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--rock);
}

.page-news .rail-nav ul {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .rail-nav__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  font-size: 15px;
  color: var(--text-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}

.page-news .rail-nav__link:hover {
  color: var(--ink-green);
  background: var(--news-gold-soft);
}

.page-news .rail-nav__link[aria-current="true"] {
  color: var(--ink-green);
  font-weight: 600;
  background: var(--news-gold-soft);
  border-left-color: var(--cinnabar);
}

.page-news .rail-nav__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--gold);
}

/* 章节节奏 */
.page-news .section {
  padding-block: clamp(28px, 4.6vw, 54px);
}

.page-news .section + .section {
  border-top: 1px solid var(--news-line);
}

/* 筛选条 */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
}

.page-news .filter-btn {
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-soft);
  background: transparent;
  border: 1px solid var(--news-line);
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-news .filter-btn:hover {
  border-color: var(--line-gold);
  color: var(--ink-green);
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--ink-green);
  border-color: var(--ink-green);
  color: var(--paper);
}

/* 时间线 */
.page-news .news-timeline {
  display: grid;
  gap: clamp(12px, 1.8vw, 18px);
}

.page-news .news-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: clamp(16px, 2.2vw, 24px) clamp(16px, 2.2vw, 26px);
  background: var(--paper-2);
  border: 1px solid var(--news-line);
  border-left: 3px solid var(--gold);
  box-shadow: var(--shadow-soft);
  transition: transform .25s ease, border-color .25s ease;
}

.page-news .news-item:hover {
  transform: translateY(-2px);
  border-color: var(--line-gold);
}

.page-news .news-item__when {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--news-line);
}

.page-news .news-item__no {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--rock);
}

.page-news .news-item__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .news-item__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: clamp(18px, 2.2vw, 21px);
  letter-spacing: .02em;
  color: var(--ink-green);
}

.page-news .news-item__text {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-news .news-item .fold > summary {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-green);
  cursor: pointer;
}

.page-news .news-item .fold__body {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-news .news-timeline__fig {
  margin: clamp(20px, 3vw, 32px) 0 0;
}

/* 专题系列 */
.page-news .series-lead {
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-news .series-lead__text p {
  margin-top: 0;
}

.page-news .series-lead__text .btn {
  margin-top: 6px;
}

.page-news .series-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 2vw, 20px);
}

.page-news .series-card {
  display: grid;
  gap: 9px;
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--paper);
  border: 1px solid var(--news-line);
  border-top: 3px solid var(--moss);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}

.page-news .series-card:nth-child(3n+2) {
  border-top-color: var(--clay);
}

.page-news .series-card:nth-child(3n+3) {
  border-top-color: var(--gold);
}

.page-news .series-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-gold);
  background: var(--paper-2);
}

.page-news .series-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(17px, 2vw, 20px);
  letter-spacing: .02em;
  color: var(--ink-green);
}

.page-news .series-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-news .series-card__meta {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--rock);
}

/* 版本演进 */
.page-news .verse-shell {
  padding: clamp(20px, 3.2vw, 40px);
  color: var(--paper);
  background:
    linear-gradient(180deg, rgba(201, 162, 39, .1), transparent 42%),
    var(--ink-green);
  border: 1px solid rgba(201, 162, 39, .34);
}

.page-news .verse-list {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .verse {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--news-line-paper);
}

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

.page-news .verse__no {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-news .verse__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: clamp(17px, 2vw, 20px);
  letter-spacing: .03em;
  color: var(--paper);
}

.page-news .verse__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(247, 244, 236, .82);
}

.page-news .verse-fig {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

/* 订阅与回访 */
.page-news .band {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .mail {
  font-size: 14.5px;
  overflow-wrap: anywhere;
}

.page-news .reach {
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
}

.page-news .reach__text h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: .03em;
  color: var(--ink-green);
}

.page-news .reach__text p {
  margin: 0 0 14px;
  line-height: 1.82;
  color: var(--text-soft);
}

.page-news .reach__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .reach__links a {
  display: inline-block;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--ink-green);
  text-decoration: none;
  background: var(--news-gold-soft);
  border: 1px solid var(--line-gold);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-news .reach__links a:hover {
  color: var(--paper);
  background: var(--ink-green);
  border-color: var(--ink-green);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-news .news-item {
    grid-template-columns: 68px minmax(0, 1fr);
    gap: clamp(12px, 2vw, 22px);
  }

  .page-news .news-item__when {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding-bottom: 0;
    padding-right: 12px;
    border-bottom: 0;
    border-right: 1px dashed var(--news-line);
  }
}

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

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

@media (min-width: 860px) {
  .page-news .series-lead {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .page-news .reach {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-news .rail-nav {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1040px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}