.page-news {
  --news-cut: 22px;
  --news-gap: clamp(28px, 4vw, 56px);
}

.page-news .news-head-grid {
  display: grid;
  gap: 28px;
  align-items: end;
}

.page-news .news-head-main .eyebrow {
  margin-bottom: 14px;
}

.page-news .news-head-main h1 {
  font-family: var(--font-head);
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
  color: var(--ink);
}

.page-news .news-head-main .lead {
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 42em;
  margin: 0;
}

.page-news .news-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--rule);
  background: var(--rule);
  gap: 1px;
}

.page-news .news-facts li {
  background: var(--paper);
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}

.page-news .news-facts .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  line-height: 1.1;
  color: var(--cinnabar-deep);
  letter-spacing: -0.01em;
}

.page-news .news-facts li > span:last-child {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* ── 主体骨架 ── */
.page-news .news-body {
  display: grid;
  gap: 32px;
  padding-top: var(--news-gap);
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-news .news-flow {
  display: grid;
  gap: clamp(44px, 6vw, 88px);
  min-width: 0;
}

/* ── 筛选栏 ── */
.page-news .news-filter-title {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin: 0 0 12px;
}

.page-news .news-filter-list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-filter-list li {
  flex: 0 0 auto;
}

.page-news .news-filter-list a {
  display: block;
  white-space: nowrap;
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
  border-left: 3px solid var(--rule);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-news .news-filter-list a:hover,
.page-news .news-filter-list a:focus-visible {
  background: var(--cream);
  border-left-color: var(--gold);
  color: var(--cinnabar-deep);
}

.page-news .news-filter-list a[aria-current="true"] {
  border-left-color: var(--jade);
  color: var(--jade);
  background: var(--paper);
  font-weight: 600;
}

/* ── 区块标题 ── */
.page-news .section-head {
  display: grid;
  gap: 10px;
  padding-bottom: 18px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--rule);
}

.page-news .section-head h2 {
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-news .section-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* ── 标签 ── */
.page-news .tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border: 1px solid currentColor;
  white-space: nowrap;
}

.page-news .tag-jade { color: var(--jade); }
.page-news .tag-lapis { color: var(--lapis); }
.page-news .tag-ink { color: var(--ink-soft); }

/* ── 首条摘要块 ── */
.page-news .digest {
  position: relative;
  display: grid;
  border: 1px solid var(--rule);
  background: var(--cream);
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, 0 100%);
  overflow: hidden;
}

.page-news .digest-media {
  border-bottom: 1px solid var(--rule);
  min-height: 200px;
}

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

.page-news .digest-body {
  padding: clamp(20px, 3.4vw, 42px);
  min-width: 0;
}

.page-news .digest-flag {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}

.page-news .digest-flag-text {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.page-news .digest-body h2 {
  font-family: var(--font-head);
  font-size: clamp(25px, 3.4vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
  color: var(--ink);
}

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

.page-news .digest-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  margin-bottom: 20px !important;
}

.page-news .meta-code {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cinnabar-deep);
}

.page-news .meta-scope {
  font-size: 13px;
  color: var(--ink-soft);
}

/* ── 结构改动列表 ── */
.page-news .struct-list {
  list-style: none;
  margin: 0 0 34px;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-news .struct-list > li {
  display: grid;
  gap: 12px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
}

.page-news .struct-head h3 {
  font-family: var(--font-head);
  font-size: 19px;
  line-height: 1.42;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-news .struct-body p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-news .struct-body strong {
  color: var(--cinnabar-deep);
  font-weight: 600;
  margin-right: 6px;
}

.page-news .struct-code {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
  margin: 10px 0 0 !important;
}

.page-news figure {
  margin: 0;
}

.page-news figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

.page-news .struct-figure,
.page-news .version-figure,
.page-news .coop-figure {
  margin-top: 6px;
}

/* ── 版本迭代时间线 ── */
.page-news .version-list {
  list-style: none;
  margin: 0 0 34px;
  padding: 0 0 0 30px;
  position: relative;
}

.page-news .version-list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--rule);
}

.page-news .version-list > li {
  position: relative;
  padding-bottom: 30px;
}

.page-news .version-list > li:last-child {
  padding-bottom: 0;
}

.page-news .version-list > li::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--paper);
  border: 2px solid var(--gold);
  transform: rotate(45deg);
}

.page-news .version-list > li:first-child::before {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
}

.page-news .version-period {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
  margin: 0 0 8px;
}

.page-news .version-list h3 {
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.42;
  margin: 0 0 10px;
  color: var(--ink);
}

.page-news .version-list p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-news .version-todo {
  font-size: 14px !important;
  color: var(--jade) !important;
  padding-left: 14px;
  border-left: 2px solid var(--jade);
}

/* ── 合作动态 ── */
.page-news .coop-list {
  list-style: none;
  margin: 0 0 34px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-news .coop-list > li {
  background: var(--paper);
  padding: 18px;
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-news .coop-time {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-news .coop-list > li > p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink);
}

.page-news .coop-more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ── 运营经验长文 ── */
.page-news .insight-prose {
  max-width: 100%;
}

.page-news .insight-prose > p {
  font-size: 16px;
  line-height: 1.82;
  color: var(--ink-soft);
  margin: 0 0 20px;
}

.page-news .insight-fold {
  border-top: 1px solid var(--gold);
  margin-bottom: 0;
}

.page-news .insight-fold:last-of-type {
  border-bottom: 1px solid var(--gold);
}

.page-news .insight-fold summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-news .insight-fold summary::before {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--cinnabar);
  transform: translateY(2px);
}

.page-news .insight-fold[open] summary::before {
  content: "−";
}

.page-news .insight-fold summary:hover {
  color: var(--cinnabar-deep);
}

.page-news .insight-fold-body {
  padding: 0 0 22px 32px;
}

.page-news .insight-fold-body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-news .insight-fold-body p:last-child {
  margin-bottom: 0;
}

/* ── 更新节律 ── */
.page-news .rhythm-grid {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin-bottom: 36px;
}

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

.page-news .rhythm-item-alt {
  background: var(--cream-deep);
}

.page-news .rhythm-day {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--cinnabar-deep);
  margin: 0 0 10px;
}

.page-news .rhythm-item h3 {
  font-family: var(--font-head);
  font-size: 18px;
  line-height: 1.42;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-news .rhythm-item p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--ink-soft);
}

.page-news .rhythm-sub {
  display: grid;
  gap: 18px;
  padding: 26px 22px;
  border: 1px solid var(--rule);
  background: var(--paper);
  position: relative;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-news .rhythm-sub h3 {
  font-family: var(--font-head);
  font-size: 21px;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--ink);
}

.page-news .rhythm-sub p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-news .rhythm-mail {
  margin: 0;
}

.page-news .rhythm-back {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ── 链接统一处理 ── */
.page-news .news-flow a:not(.btn),
.page-news .rhythm-back a {
  color: var(--lapis);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-news .news-flow a:not(.btn):hover,
.page-news .rhythm-back a:hover {
  color: var(--cinnabar-deep);
}

/* ── 响应式 ── */
@media (min-width: 640px) {
  .page-news .news-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-news .rhythm-sub {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
  }
}

@media (min-width: 760px) {
  .page-news .struct-list > li {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 36px;
    align-items: start;
  }

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

  .page-news .section-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: end;
    gap: 32px;
  }

  .page-news .section-note {
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-news .digest {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

  .page-news .digest-media {
    border-bottom: 0;
    border-right: 1px solid var(--rule);
    min-height: 100%;
  }
}

@media (min-width: 960px) {
  .page-news .news-head-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 56px;
  }
}

@media (min-width: 1000px) {
  .page-news .news-body {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 60px;
  }

  .page-news .news-filter {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-news .news-filter-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-filter-list li {
    flex: 1 1 auto;
  }

  .page-news .news-filter-list a {
    white-space: normal;
  }

  .page-news .rhythm-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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