.page-news {
  --news-rail: 300px;
  --news-hair: 1px solid rgba(14, 42, 71, .18);
  --news-ink-soft: rgba(14, 42, 71, .35);
  background: var(--tb-paper);
  color: var(--tb-grey);
  font-family: var(--tb-font);
}

/* 阅读进度 */
.page-news .news-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 4px;
  background: rgba(14, 42, 71, .12);
  z-index: 70;
  pointer-events: none;
}
.page-news .news-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--tb-gold), var(--tb-gold-lt));
  transition: transform .12s linear;
}

/* 首屏 */
.page-news .news-hero {
  padding: 32px 0 44px;
  border-bottom: var(--tb-edge) solid var(--tb-ink);
  background:
    repeating-linear-gradient(135deg, rgba(14, 42, 71, .05) 0 1px, transparent 1px 16px),
    var(--tb-paper);
}
.page-news .news-hero h1 {
  margin: 16px 0 20px;
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--tb-ink);
  max-width: 18ch;
}
.page-news .news-hero h1 em {
  font-style: normal;
  font-weight: 800;
  color: var(--tb-ice);
}
.page-news .news-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--tb-grey);
}
.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-news .news-hero__meta li {
  font-family: var(--tb-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--tb-ink);
  border: 1px solid var(--news-ink-soft);
  padding: 5px 10px;
  background: var(--tb-white);
}

/* 置顶：横向信息带 */
.page-news .news-pinned {
  padding: 48px 0 56px;
  background: var(--tb-white);
  border-bottom: var(--tb-edge) solid var(--tb-ink);
}
.page-news .news-pinned__band {
  display: grid;
  gap: 0;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
  border-top: var(--tb-edge) solid var(--tb-ink);
  border-bottom: var(--tb-edge) solid var(--tb-ink);
}
.page-news .news-pinned__band li {
  position: relative;
  padding: 20px 18px 20px 58px;
  border-bottom: var(--news-hair);
}
.page-news .news-pinned__band li:last-child {
  border-bottom: 0;
}
.page-news .news-pinned__num {
  position: absolute;
  left: 14px;
  top: 22px;
  font-family: var(--tb-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--tb-gold);
}
.page-news .news-pinned__band h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--tb-ink);
  line-height: 1.4;
}
.page-news .news-pinned__band p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--tb-grey);
}

.page-news .news-pinned__feature {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
  align-items: start;
}
.page-news .news-pinned__figure {
  margin: 0;
}
.page-news .news-pinned__body h3 {
  margin: 12px 0 12px;
  font-size: 1.32rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--tb-ink);
}
.page-news .news-pinned__body p {
  margin: 0 0 18px;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--tb-grey);
  max-width: 60ch;
}

/* 双列主体 */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-top: 48px;
  padding-bottom: 64px;
}

/* 左列：分类与连载 */
.page-news .news-rail__block + .news-rail__block {
  margin-top: 32px;
}
.page-news .news-rail__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .news-rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 2px solid var(--tb-ink);
  color: var(--tb-ink);
  text-decoration: none;
  font-size: .84rem;
  font-weight: 700;
  line-height: 1.3;
  background: var(--tb-white);
  transition: background .18s var(--tb-ease), color .18s var(--tb-ease), border-color .18s var(--tb-ease);
}
.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  background: var(--tb-mist);
}
.page-news .news-rail__link:focus-visible {
  outline: 2px solid var(--tb-ice);
  outline-offset: 2px;
}
.page-news .news-rail__link[aria-current="true"] {
  background: var(--tb-ice);
  border-color: var(--tb-ice);
  color: var(--tb-white);
}
.page-news .news-rail__count {
  font-family: var(--tb-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  opacity: .7;
}

.page-news .news-series {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.page-news .news-series__item {
  padding: 14px 0;
  border-bottom: var(--news-hair);
}
.page-news .news-series__item:first-child {
  border-top: var(--news-hair);
}
.page-news .news-series__name {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: .88rem;
  font-weight: 700;
  color: var(--tb-ink);
}
.page-news .news-series__num {
  font-family: var(--tb-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--tb-gold);
}
.page-news .news-series__track {
  position: relative;
  height: 8px;
  margin: 9px 0 8px;
  background: var(--tb-mist);
  border: 1px solid var(--news-ink-soft);
}
.page-news .news-series__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--p, 0%);
  background: var(--tb-ice);
}
.page-news .news-series__note {
  margin: 0;
  font-size: .76rem;
  line-height: 1.6;
  color: var(--tb-grey);
}

/* 右列：条目流 */
.page-news .news-block {
  padding-bottom: 36px;
  margin-bottom: 36px;
  border-bottom: var(--tb-edge) solid var(--tb-ink);
}
.page-news .news-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}
.page-news .news-block__intro {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--tb-grey);
}
.page-news .news-block__figure {
  margin: 24px 0 8px;
}
.page-news .news-block__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .news-block__tail {
  margin: 20px 0 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--tb-grey);
}
.page-news .news-inline-link {
  color: var(--tb-ice);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--tb-gold-lt);
}
.page-news .news-inline-link:hover {
  border-bottom-color: var(--tb-ice);
}

.page-news .news-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .news-item {
  padding: 20px 0;
  border-top: 1px solid rgba(14, 42, 71, .2);
}
.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.page-news .news-item__time {
  font-family: var(--tb-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--tb-gold);
  border: 1px solid var(--tb-gold-lt);
  padding: 2px 8px;
  white-space: nowrap;
}
.page-news .news-item__title {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 800;
  line-height: 1.45;
  color: var(--tb-ink);
  letter-spacing: -.01em;
}
.page-news .news-item__sum {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: .91rem;
  line-height: 1.75;
  color: var(--tb-grey);
}
.page-news .news-item__more {
  margin-top: 10px;
  max-width: 62ch;
}
.page-news .news-item__more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--tb-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--tb-ice);
}
.page-news .news-item__more summary::-webkit-details-marker {
  display: none;
}
.page-news .news-item__more summary::before {
  content: "＋ ";
}
.page-news .news-item__more[open] summary::before {
  content: "－ ";
}
.page-news .news-item__more p {
  margin: 10px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--tb-mist);
  font-size: .88rem;
  line-height: 1.8;
  color: var(--tb-grey);
}

/* 订阅收尾 */
.page-news .news-sub {
  position: relative;
  padding: 56px 0 64px;
  background: var(--tb-ink);
  color: var(--tb-white);
  border-top: var(--tb-edge) solid var(--tb-ink);
  overflow: hidden;
}
.page-news .news-sub::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 8px;
  background: repeating-linear-gradient(115deg, var(--tb-gold) 0 8px, transparent 8px 22px);
  opacity: .55;
}
.page-news .news-sub__inner {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}
.page-news .news-sub__head h2 {
  margin: 12px 0 12px;
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--tb-white);
}
.page-news .news-sub__head p {
  margin: 0;
  max-width: 48ch;
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .82);
}
.page-news .news-sub .tb-kicker {
  color: var(--tb-gold-lt);
}
.page-news .news-sub__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, .22);
}
.page-news .news-sub__list li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .22);
}
.page-news .news-sub__list strong {
  font-size: .96rem;
  font-weight: 800;
  color: var(--tb-gold-lt);
  letter-spacing: .02em;
}
.page-news .news-sub__list span {
  font-size: .88rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, .84);
}
.page-news .news-sub__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-news .news-sub .tb-btn--gold {
  color: var(--tb-ink);
}
.page-news .news-sub .tb-btn--ghost {
  background: transparent;
  color: var(--tb-white);
  border-color: rgba(255, 255, 255, .55);
}
.page-news .news-sub .tb-btn--ghost:hover,
.page-news .news-sub .tb-btn--ghost:focus-visible {
  border-color: var(--tb-gold-lt);
  color: var(--tb-gold-lt);
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-news .news-hero {
    padding: 44px 0 56px;
  }
  .page-news .news-pinned__band {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news .news-pinned__band li {
    border-bottom: 0;
    border-right: var(--news-hair);
  }
  .page-news .news-pinned__band li:last-child {
    border-right: 0;
  }
  .page-news .news-pinned__feature {
    grid-template-columns: 44fr 56fr;
    gap: 32px;
  }
  .page-news .news-sub__inner {
    grid-template-columns: 46fr 54fr;
    gap: 40px;
    align-items: start;
  }
  .page-news .news-sub__actions {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero {
    padding: 56px 0 64px;
  }
  .page-news .news-layout {
    grid-template-columns: var(--news-rail) 1fr;
    gap: 52px;
    padding-top: 64px;
    padding-bottom: 80px;
  }
  .page-news .news-rail {
    position: sticky;
    top: 84px;
    align-self: start;
  }
  .page-news .news-rail__list {
    flex-direction: column;
    gap: 0;
  }
  .page-news .news-rail__link {
    justify-content: space-between;
    width: 100%;
    padding: 11px 12px;
    border-width: 0 0 2px 0;
    border-color: var(--news-ink-soft);
    border-radius: 0;
    background: transparent;
  }
  .page-news .news-rail__link:hover,
  .page-news .news-rail__link:focus-visible {
    background: var(--tb-mist);
    border-color: var(--tb-ice);
  }
  .page-news .news-rail__link[aria-current="true"] {
    background: transparent;
    color: var(--tb-ice);
    border-color: var(--tb-gold);
  }
  .page-news .news-sub {
    padding: 72px 0 80px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-progress__bar {
    transition: none;
  }
  .page-news .news-rail__link {
    transition: none;
  }
}
</main>

.page-news {
  --p: 1rem;
}