.page-news {
  --news-line: rgba(75, 227, 176, .18);
  --news-gap: clamp(28px, 5vw, 64px);
  background: var(--ink);
  color: var(--white);
}

/* 面包屑区 */
.page-news .crumb {
  padding-top: clamp(20px, 4vw, 40px);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mute);
}
.page-news .crumb a {
  color: var(--neon);
  text-decoration: none;
}
.page-news .crumb a:hover { text-decoration: underline; }

/* 专栏首屏 */
.page-news .col-head {
  padding: clamp(20px, 4vw, 44px) 0 clamp(28px, 5vw, 56px);
  border-bottom: 1px solid var(--news-line);
}
.page-news .col-head__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}
.page-news .col-head__text .eyebrow {
  color: var(--neon);
  letter-spacing: .22em;
  font-size: 12px;
  margin: 0 0 14px;
}
.page-news .col-head h1 {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(28px, 6.2vw, 46px);
  line-height: 1.22;
  letter-spacing: -.01em;
  margin: 0 0 18px;
  max-width: 20em;
}
.page-news .col-head__lede {
  font-size: 15px;
  line-height: 1.78;
  color: var(--white);
  opacity: .86;
  margin: 0;
  max-width: 46em;
}
.page-news .col-head__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
}
.page-news .col-head__stat {
  background: var(--ink-2);
  padding: 16px 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.page-news .col-head__num {
  font-size: clamp(22px, 4.6vw, 30px);
  font-weight: 600;
  color: var(--neon);
  line-height: 1;
}
.page-news .col-head__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mute);
}

/* 主推条目 */
.page-news .feature {
  display: grid;
  gap: 0;
  border-bottom: 1px solid var(--news-line);
}
.page-news .feature__media {
  margin: 0;
  border: 1px solid var(--news-line);
  border-bottom: none;
}
.page-news .feature__body {
  padding: clamp(22px, 4vw, 40px) 0 clamp(26px, 4vw, 44px);
}
.page-news .feature__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.page-news .feature__time {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mute);
}
.page-news .feature__title {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(24px, 5.2vw, 40px);
  line-height: 1.24;
  letter-spacing: -.01em;
  margin: 0 0 16px;
}
.page-news .feature__excerpt {
  font-family: var(--serif);
  font-size: clamp(16px, 2.4vw, 19px);
  line-height: 1.78;
  color: var(--scroll-text);
  margin: 0 0 18px;
  max-width: 40em;
}
.page-news .feature__byline {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
  margin: 0 0 22px;
}
.page-news .col-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* 条目流布局 */
.page-news .stream-layout {
  display: grid;
  gap: var(--news-gap);
}
.page-news .stream-rail {
  border-top: 1px solid var(--news-line);
  padding-top: 18px;
}
.page-news .stream-rail__title {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--mute);
  margin: 0 0 14px;
}
.page-news .stream-rail__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .stream-rail__note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--mute);
  margin: 16px 0 0;
}
.page-news .filter-btn {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--scroll-text);
  font-family: var(--sans);
  font-size: 13px;
  padding: 7px 13px;
  cursor: pointer;
  transition: color 120ms linear, border-color 120ms linear, background-color 120ms linear;
}
.page-news .filter-btn:hover {
  border-color: var(--neon-dim);
  color: var(--white);
}
.page-news .filter-btn.is-active {
  border-color: var(--neon);
  color: var(--neon);
  background: rgba(75, 227, 176, .08);
}

.page-news .stream-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--news-line);
}
.page-news .stream-title {
  font-family: var(--sans);
  font-size: clamp(20px, 3.6vw, 26px);
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0;
}
.page-news .stream-sub {
  font-size: 13px;
  color: var(--mute);
  margin: 0;
}

.page-news .stream-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: stream;
}
.page-news .stream-item {
  display: grid;
  gap: 8px;
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--news-line);
  position: relative;
  transition: background-color 120ms linear;
}
.page-news .stream-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 24px;
  width: 2px;
  background: var(--neon-dim);
  opacity: 0;
  transition: opacity 120ms linear, background-color 120ms linear;
}
.page-news .stream-item:hover::before {
  opacity: 1;
  background: var(--neon);
}
.page-news .stream-item:hover {
  background: rgba(18, 51, 43, .55);
}
.page-news .stream-item__time {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--neon);
  order: 0;
}
.page-news .stream-item__body { order: 2; }
.page-news .stream-item__title {
  font-family: var(--sans);
  font-size: clamp(17px, 3.4vw, 22px);
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: -.01em;
  margin: 0 0 10px;
}
.page-news .stream-item__text {
  font-size: 15px;
  line-height: 1.78;
  color: var(--scroll-text);
  margin: 0 0 10px;
  max-width: 46em;
}
.page-news .stream-item__byline {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
  margin: 0;
}
.page-news .stream-item .tag {
  order: 1;
  justify-self: start;
}
.page-news .stream-item[hidden] { display: none; }

/* 呼吸区 */
.page-news .stream-breath {
  margin-top: 30px;
  padding: clamp(30px, 6vw, 56px) clamp(20px, 4vw, 36px);
  background: linear-gradient(120deg, var(--ink-2) 0%, var(--cold) 100%);
  border-left: 3px solid var(--amber);
}
.page-news .stream-breath__text {
  font-family: var(--serif);
  font-size: clamp(17px, 3.2vw, 22px);
  line-height: 1.7;
  color: var(--paper);
  margin: 0;
  max-width: 34em;
}

/* 专题系列 */
.page-news .series {
  border-top: 1px solid var(--news-line);
}
.page-news .series-head {
  max-width: 48em;
  margin-bottom: clamp(26px, 4vw, 44px);
}
.page-news .series-head .eyebrow {
  color: var(--amber);
  letter-spacing: .22em;
  font-size: 12px;
  margin: 0 0 12px;
}
.page-news .series-title {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(24px, 5vw, 36px);
  line-height: 1.26;
  letter-spacing: -.01em;
  margin: 0 0 14px;
}
.page-news .series-lede {
  font-size: 15px;
  line-height: 1.78;
  color: var(--scroll-text);
  margin: 0;
}
.page-news .series-grid {
  display: grid;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
}
.page-news .series-card {
  background: var(--ink);
  display: flex;
  flex-direction: column;
}
.page-news .series-card__media {
  margin: 0;
  border-bottom: 1px solid var(--news-line);
}
.page-news .series-card__body {
  padding: clamp(20px, 3.4vw, 30px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  flex: 1;
}
.page-news .series-card__title {
  font-family: var(--sans);
  font-size: clamp(19px, 3.4vw, 24px);
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0;
}
.page-news .series-card__text {
  font-size: 15px;
  line-height: 1.78;
  color: var(--scroll-text);
  margin: 0;
}
.page-news .series-card__list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  width: 100%;
}
.page-news .series-card__list li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
  padding-left: 16px;
  position: relative;
}
.page-news .series-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 2px;
  background: var(--neon);
}
.page-news .series-card__link {
  margin-top: auto;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 179, 61, .4);
  padding-bottom: 2px;
}
.page-news .series-card__link:hover {
  color: var(--amber-lt);
  border-bottom-color: var(--amber-lt);
}

/* 回看与订阅入口 */
.page-news .onward {
  border-top: 1px solid var(--news-line);
  background: var(--cold);
}
.page-news .onward__inner {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}
.page-news .onward__text .eyebrow {
  color: var(--neon);
  letter-spacing: .22em;
  font-size: 12px;
  margin: 0 0 12px;
}
.page-news .onward__title {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(23px, 4.6vw, 34px);
  line-height: 1.26;
  letter-spacing: -.01em;
  margin: 0 0 14px;
}
.page-news .onward__lede {
  font-size: 15px;
  line-height: 1.78;
  color: var(--scroll-text);
  margin: 0;
  max-width: 40em;
}
.page-news .onward__cards {
  display: grid;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
}
.page-news .onward-card {
  display: grid;
  gap: 8px;
  padding: 22px 20px 24px;
  background: var(--ink-2);
  text-decoration: none;
  color: inherit;
  transition: background-color 120ms linear;
}
.page-news .onward-card:hover {
  background: #164037;
}
.page-news .onward-card__k {
  font-size: clamp(26px, 5vw, 34px);
  font-weight: 600;
  color: var(--amber);
  line-height: 1;
}
.page-news .onward-card__t {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}
.page-news .onward-card__d {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}
.page-news .onward-card__go {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--neon);
  margin-top: 4px;
}

@media (min-width: 720px) {
  .page-news .col-head__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }
  .page-news .col-head__meta {
    grid-template-columns: 1fr;
  }
  .page-news .col-head__stat {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
    padding: 14px 16px;
  }
  .page-news .col-head__label { font-size: 12px; }

  .page-news .feature {
    grid-template-columns: 1fr;
  }
  .page-news .feature__media { border-bottom: 1px solid var(--news-line); }

  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .series-card--wide {
    grid-column: 1 / -1;
    flex-direction: row;
  }
  .page-news .series-card--wide .series-card__media {
    flex: 1 1 52%;
    border-bottom: none;
    border-right: 1px solid var(--news-line);
    align-self: stretch;
  }
  .page-news .series-card--wide .series-card__body {
    flex: 1 1 48%;
  }

  .page-news .onward__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
    align-items: start;
  }
  .page-news .onward__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-news .stream-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }
  .page-news .stream-rail {
    position: sticky;
    top: 28px;
    border-top: none;
    border-left: 1px solid var(--news-line);
    padding: 4px 0 0 18px;
  }
  .page-news .stream-rail__bar {
    flex-direction: column;
    align-items: stretch;
  }
  .page-news .filter-btn {
    text-align: left;
    position: relative;
    border: none;
    border-bottom: 1px solid transparent;
    padding: 9px 0 9px 12px;
    color: var(--mute);
  }
  .page-news .filter-btn::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 16px;
    background: var(--neon);
    opacity: 0;
    transition: opacity 120ms linear;
  }
  .page-news .filter-btn.is-active {
    background: transparent;
    color: var(--neon);
    font-weight: 700;
  }
  .page-news .filter-btn.is-active::before { opacity: 1; }

  .page-news .stream-item {
    grid-template-columns: 132px minmax(0, 1fr) 108px;
    align-items: start;
    column-gap: 22px;
    padding: 26px 18px 28px;
    margin: 0 -18px;
  }
  .page-news .stream-item__time { order: 0; padding-top: 3px; }
  .page-news .stream-item__body { order: 1; }
  .page-news .stream-item .tag { order: 2; justify-self: end; text-align: right; }
  .page-news .stream-item::before { left: 0; }

  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .feature__title { max-width: 22em; }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter-btn,
  .page-news .stream-item,
  .page-news .onward-card,
  .page-news .stream-item::before {
    transition: none;
  }
}