.page-news {
  background: var(--ink-900);
  color: var(--text-on-dark);
}

/* ===== 首屏 ===== */
.page-news .news-hero {
  position: relative;
  padding-block: 20px 72px;
  border-bottom: 1px solid var(--hair);
}

.page-news .news-hero__ghost {
  position: absolute;
  top: -14px;
  right: 2%;
  z-index: 0;
  font-size: clamp(6rem, 24vw, 15rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--hair-strong);
  pointer-events: none;
  user-select: none;
}

.page-news .news-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
  margin-top: 26px;
}

.page-news .news-hero__copy h1 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-size: clamp(1.95rem, 7vw, 3.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-news .news-hero__lede {
  max-width: 48ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted-on-dark);
}

.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 28px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .news-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--ink-800);
}

.page-news .news-stat__num {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 500;
  line-height: 1;
  color: var(--orange);
}

.page-news .news-stat__label {
  font-size: .78rem;
  line-height: 1.4;
  color: var(--muted-on-dark);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .news-hero__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hair);
}

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

/* ===== 区块标题 ===== */
.page-news .news-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hair);
}

.page-news .news-head__num {
  flex: none;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--orange);
}

.page-news .news-head h2 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 4vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-news .news-head p {
  max-width: 62ch;
  margin: 0;
  font-size: .94rem;
  line-height: 1.7;
  color: var(--muted-on-dark);
}

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

/* ===== 置顶条目 ===== */
.page-news .pin-list {
  display: grid;
  gap: 16px;
}

.page-news .pin {
  padding: 20px 20px 20px 22px;
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius-md);
}

.page-news .pin__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-news .pin__batch {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--muted-on-dark);
}

.page-news .pin__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(1.05rem, 3.4vw, 1.3rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}

.page-news .pin__sum {
  margin: 0;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--text-on-dark);
}

.page-news .pin__more {
  margin-top: 14px;
  border-top: 1px dashed var(--hair-strong);
  padding-top: 12px;
}

.page-news .pin__more .accordion__body p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--muted-on-dark);
}

/* ===== 分类标签 ===== */
.page-news .tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  font-family: var(--font-mono);
  font-size: .72rem;
  line-height: 1.5;
  letter-spacing: .04em;
  border-radius: var(--pill);
  border: 1px solid transparent;
  white-space: nowrap;
}

.page-news .tag--struct {
  background: var(--orange-tint);
  color: var(--orange);
  border-color: rgba(255, 106, 26, .38);
}

.page-news .tag--table {
  background: rgba(47, 198, 166, .12);
  color: var(--teal);
  border-color: rgba(47, 198, 166, .32);
}

.page-news .tag--step {
  background: rgba(242, 178, 51, .13);
  color: var(--amber);
  border-color: rgba(242, 178, 51, .32);
}

.page-news .tag--nav {
  background: rgba(195, 206, 216, .1);
  color: var(--gray-300);
  border-color: var(--hair-strong);
}

/* ===== 记录流双栏 ===== */
.page-news .news-log__layout {
  display: grid;
  gap: 36px;
}

.page-news .news-filter {
  padding: 18px 18px 20px;
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
}

.page-news .news-filter .eyebrow {
  display: block;
  margin: 0 0 12px;
}

.page-news .news-filter__list {
  display: grid;
  gap: 4px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-news .news-filter__link {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 11px;
  font-size: .9rem;
  line-height: 1.5;
  color: var(--muted-on-dark);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-news .news-filter__link .u-mono {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--orange);
}

.page-news .news-filter__link:hover,
.page-news .news-filter__link:focus-visible {
  background: var(--ink-700);
  color: var(--paper);
}

.page-news .news-filter__note {
  padding: 14px;
  background: var(--orange-tint);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--orange);
}

.page-news .news-filter__note p {
  margin: 0 0 10px;
  font-size: .84rem;
  line-height: 1.65;
  color: var(--text-on-dark);
}

.page-news .news-filter__note-link {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

.page-news .news-filter__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--hair);
  font-size: .78rem;
  line-height: 1.7;
  color: var(--muted-on-dark);
}

.page-news .news-log__stream {
  min-width: 0;
}

.page-news .log-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .log-item {
  position: relative;
  padding: 18px 18px 18px 20px;
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-left: 2px solid var(--hair-strong);
  border-radius: var(--radius-md);
  transition: border-left-color .22s var(--ease), background .22s var(--ease);
}

.page-news .log-item:hover {
  border-left-color: var(--orange);
  background: var(--ink-700);
}

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

.page-news .log-item__batch {
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .06em;
  color: var(--muted-on-dark);
}

.page-news .log-item__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .log-item__sum {
  margin: 0 0 10px;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--muted-on-dark);
}

.page-news .log-item__act {
  margin: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--text-on-dark);
}

.page-news .log-item__actlabel {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--ink-900);
  background: var(--orange);
  border-radius: var(--pill);
}

.page-news .log-list__more {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
  font-size: .86rem;
  line-height: 1.75;
  color: var(--muted-on-dark);
}

.page-news .log-list__more a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ===== 版本迭代脉络 ===== */
.page-news .news-timeline {
  border-top: 6px solid var(--orange);
}

.page-news .timeline {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .tl-node {
  position: relative;
  padding: 16px 16px 18px;
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color .22s var(--ease);
}

.page-news .tl-node::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 16px;
  width: 34px;
  height: 3px;
  background: var(--hair-strong);
  border-radius: 0 0 3px 3px;
  transition: background .22s var(--ease), width .22s var(--ease);
}

.page-news .tl-node:hover::before,
.page-news .tl-node:focus-visible::before,
.page-news .tl-node--now::before {
  width: 52px;
  background: var(--orange);
}

.page-news .tl-node:hover,
.page-news .tl-node:focus-visible {
  border-color: var(--hair-strong);
}

.page-news .tl-node--now {
  background: var(--ink-700);
  border-color: rgba(255, 106, 26, .45);
}

.page-news .tl-node__batch {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--orange);
}

.page-news .tl-node__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .tl-node__tip {
  display: block;
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 5;
  width: 220px;
  max-width: 68vw;
  padding: 10px 12px;
  font-size: .8rem;
  line-height: 1.6;
  color: var(--ink-900);
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 26px rgba(4, 12, 22, .45);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s var(--ease), visibility .2s var(--ease);
}

.page-news .tl-node:hover .tl-node__tip,
.page-news .tl-node:focus-visible .tl-node__tip,
.page-news .tl-node:focus-within .tl-node__tip {
  opacity: 1;
  visibility: visible;
}

.page-news .news-timeline__figure {
  margin: 30px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hair);
}

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

/* ===== 分类说明 ===== */
.page-news .cat-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-news .cat-row {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--hair);
}

.page-news .cat-row .tag {
  justify-self: start;
}

.page-news .cat-row__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .cat-row__desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--muted-on-dark);
}

/* ===== 专题系列 ===== */
.page-news .series-grid {
  display: grid;
  gap: 24px;
}

.page-news .series-lead {
  display: grid;
  gap: 0;
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .series-lead__media {
  margin: 0;
}

.page-news .series-lead__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .series-lead__body {
  padding: 20px 20px 22px;
}

.page-news .series-lead__body h3 {
  margin: 8px 0 10px;
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 3.6vw, 1.4rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}

.page-news .series-lead__body p {
  margin: 0 0 14px;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--muted-on-dark);
}

.page-news .series-lead__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-news .series-steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .series-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
}

.page-news .series-step__num {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.3;
  color: var(--orange);
}

.page-news .series-step h4 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: .96rem;
  font-weight: 600;
  color: var(--paper);
}

.page-news .series-step p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--muted-on-dark);
}

.page-news .news-series__figure {
  margin: 26px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hair);
}

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

/* ===== 订阅提醒 ===== */
.page-news .news-subscribe__inner {
  display: grid;
  gap: 22px;
  padding: 26px 22px;
  background: var(--ink-800);
  border: 1px solid var(--hair);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius-lg);
}

.page-news .news-subscribe__copy h2 {
  margin: 8px 0 10px;
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 4vw, 1.8rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .news-subscribe__copy p {
  max-width: 58ch;
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--muted-on-dark);
}

.page-news .news-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .news-subscribe__foot {
  margin: 18px 0 0;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--muted-on-dark);
}

/* ===== 响应式 ===== */
@media (min-width: 620px) {
  .page-news .news-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .cat-row {
    grid-template-columns: 168px minmax(0, 1fr);
    column-gap: 20px;
    align-items: start;
  }

  .page-news .cat-row__title {
    grid-column: 1;
    grid-row: 2;
  }

  .page-news .cat-row__desc {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .page-news .cat-row .tag {
    grid-column: 1;
    grid-row: 1;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding-block: 24px 84px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 48px;
    align-items: center;
  }

  .page-news .news-timeline .timeline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
  }

  .page-news .series-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-news .news-subscribe__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 32px 30px;
  }
}

@media (min-width: 980px) {
  .page-news .news-log__layout {
    grid-template-columns: 246px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .news-filter {
    position: sticky;
    top: calc(var(--header-h-compact) + 20px);
  }
}

@media (hover: none) {
  .page-news .tl-node__tip {
    position: static;
    width: auto;
    max-width: none;
    margin-top: 10px;
    padding: 0;
    background: transparent;
    box-shadow: none;
    color: var(--muted-on-dark);
    font-size: .82rem;
    opacity: 1;
    visibility: visible;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .log-item,
  .page-news .tl-node::before,
  .page-news .news-filter__link,
  .page-news .tl-node__tip {
    transition: none;
  }
}