/* ============================================
   动态与专题 /news/
   页面作用域：.page-news
   ============================================ */

.page-news {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 首屏主题声明 ---------- */
.page-news .news-masthead {
  position: relative;
  padding: 68px 0 44px;
  background:
    radial-gradient(92% 74% at 94% -12%, rgba(46, 123, 255, .22), transparent 62%),
    radial-gradient(84% 82% at -12% 112%, rgba(12, 43, 46, .95), transparent 72%),
    var(--ink);
  border-bottom: 1px solid var(--glass-hair);
}

.page-news .news-masthead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red), var(--gold), var(--blue), transparent);
  opacity: .55;
}

.page-news .news-masthead__inner {
  display: grid;
  gap: 14px;
}

.page-news .news-masthead .eyebrow {
  margin: 6px 0 0;
}

.page-news .news-masthead__title {
  margin: 0;
  font-size: clamp(46px, 13vw, 106px);
  font-weight: 300;
  line-height: .95;
  letter-spacing: -.02em;
  text-shadow: 0 0 36px rgba(46, 123, 255, .34);
}

.page-news .news-masthead__lede {
  margin: 0;
  max-width: 42em;
}

.page-news .news-masthead__facts {
  list-style: none;
  margin: 10px 0 0;
  padding: 22px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  border-top: 1px solid var(--glass-hair);
}

.page-news .news-masthead__facts li {
  display: grid;
  gap: 5px;
}

.page-news .news-masthead__facts .mono {
  color: var(--gold);
  font-size: 16px;
  letter-spacing: .05em;
}

.page-news .news-masthead__facts li > span:last-child {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

/* ---------- 置顶条 ---------- */
.page-news .news-pin {
  background: var(--ink);
  padding-bottom: 4px;
}

.page-news .news-pin__bar {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 26px 22px 28px 24px;
  border-left: 3px solid var(--red);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(96deg, rgba(255, 45, 85, .17), rgba(255, 45, 85, .03) 44%, rgba(200, 220, 255, .05));
  box-shadow: inset 0 1px 0 var(--glass-hair);
}

.page-news .news-pin__flag {
  justify-self: start;
  margin: 0;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--ink);
  background: var(--red);
  border-radius: 3px;
}

.page-news .news-pin__stamp {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-news .news-pin__title {
  margin: 0 0 10px;
}

.page-news .news-pin__text {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-pin__scopes {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 13px;
  color: var(--muted);
}

.page-news .news-pin__scopes .mono {
  color: var(--text);
  margin-right: 7px;
  font-size: 14px;
}

/* ---------- 区块通用标题 ---------- */
.page-news .news-head {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

.page-news .news-head .eyebrow,
.page-news .news-head .display-m {
  margin: 0;
}

.page-news .news-head__note {
  margin: 0;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 场景专题 ---------- */
.page-news .news-topics {
  padding: 56px 0 40px;
}

.page-news .news-topics__grid {
  display: grid;
  gap: 28px;
}

.page-news .news-topic {
  position: relative;
  display: grid;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--glass-hair);
  border-radius: var(--radius);
  box-shadow: 0 22px 52px rgba(0, 0, 0, .48);
}

.page-news .news-topic::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  z-index: 2;
  background: linear-gradient(180deg, var(--red), var(--gold));
}

.page-news .news-topic--cold::before {
  background: linear-gradient(180deg, var(--blue), var(--jade));
}

.page-news .news-topic__figure {
  margin: 0;
}

.page-news .news-topic__figure .figure__media {
  aspect-ratio: 16 / 9;
}

.page-news .news-topic__body {
  display: grid;
  gap: 12px;
  padding: 24px 22px 26px 24px;
}

.page-news .news-topic__tags {
  gap: 8px;
}

.page-news .news-topic__title {
  margin: 0;
  font-size: clamp(24px, 6.4vw, 36px);
  line-height: 1.2;
}

.page-news .news-topic__text {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-topic__points {
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .news-topic__points li {
  position: relative;
  padding-left: 18px;
}

.page-news .news-topic__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

.page-news .news-topic__more {
  margin-top: 6px;
  border-top: 1px solid var(--glass-hair);
  padding-top: 12px;
}

.page-news .news-topic__more summary {
  cursor: pointer;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--blue);
  list-style: none;
}

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

.page-news .news-topic__more summary::after {
  content: " ＋";
  color: var(--gold);
}

.page-news .news-topic__more[open] summary::after {
  content: " －";
}

.page-news .news-topic__more p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-topic__more a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 栏目流 ---------- */
.page-news .news-stream {
  padding: 36px 0 60px;
}

.page-news .news-stream__banner {
  margin: 0 0 32px;
}

.page-news .news-stream__media {
  aspect-ratio: 8 / 3;
}

.page-news .news-stream__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--glass-line);
}

.page-news .news-item {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 20px 14px 20px 20px;
  border-bottom: 1px solid var(--glass-hair);
  transition: background-color .18s ease;
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  border-radius: 2px;
  background: var(--blue);
  opacity: .3;
  transition: opacity .18s ease, background-color .18s ease;
}

.page-news .news-item:hover,
.page-news .news-item:focus-within {
  background: rgba(200, 220, 255, .055);
}

.page-news .news-item:hover::before,
.page-news .news-item:focus-within::before {
  background: var(--red);
  opacity: 1;
}

.page-news .news-item__meta {
  display: flex;
  align-items: center;
}

.page-news .news-item__title {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: .01em;
}

.page-news .news-item__desc {
  margin: 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-item__stamp {
  margin: 2px 0 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
  opacity: .65;
  white-space: nowrap;
  transition: opacity .18s ease, color .18s ease;
}

.page-news .news-item:hover .news-item__stamp,
.page-news .news-item:focus-within .news-item__stamp {
  opacity: 1;
  color: var(--gold);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm {
  padding: 60px 0 64px;
  border-top: 1px solid var(--glass-hair);
  border-bottom: 1px solid var(--glass-hair);
}

.page-news .news-rhythm__inner {
  display: grid;
  gap: 24px;
}

.page-news .news-rhythm__head .eyebrow,
.page-news .news-rhythm__head .display-m {
  margin: 0;
}

.page-news .news-rhythm__head .eyebrow {
  margin-bottom: 10px;
}

.page-news .news-rhythm__body p {
  margin: 0 0 16px;
}

.page-news .news-rhythm__body p:last-child {
  margin-bottom: 0;
}

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

.page-news .news-rhythm__steps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  background: var(--glass);
  border-left: 1px solid var(--glass-line);
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-news .news-rhythm__steps .mono {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: .1em;
  padding-top: 3px;
}

/* ---------- 纠错与专题征集 ---------- */
.page-news .news-pitch {
  padding: 62px 0 76px;
  background:
    radial-gradient(78% 70% at 8% 0%, rgba(255, 45, 85, .12), transparent 62%),
    var(--ink);
}

.page-news .news-pitch__inner {
  display: grid;
  gap: 28px;
}

.page-news .news-pitch__figure {
  margin: 0;
}

.page-news .news-pitch__media {
  aspect-ratio: 4 / 3;
}

.page-news .news-pitch__body .eyebrow,
.page-news .news-pitch__body .display-m {
  margin: 0 0 12px;
}

.page-news .news-pitch__text {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-pitch__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .news-masthead {
    padding: 84px 0 52px;
  }

  .page-news .news-masthead__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px 22px;
  }

  .page-news .news-pin__bar {
    grid-template-columns: 84px minmax(0, 1fr);
    align-items: start;
    column-gap: 24px;
    padding: 30px 30px 32px 28px;
  }

  .page-news .news-pin__flag {
    grid-row: 1;
  }

  .page-news .news-pin__body {
    grid-column: 2;
  }

  .page-news .news-item {
    padding: 22px 20px 22px 24px;
  }
}

@media (min-width: 860px) {
  .page-news .news-item {
    grid-template-columns: 152px minmax(0, 1fr) 190px;
    grid-template-areas:
      "tag title stamp"
      "tag desc stamp";
    column-gap: 26px;
    row-gap: 7px;
    align-items: start;
    padding: 24px 22px 24px 26px;
  }

  .page-news .news-item__meta {
    grid-area: tag;
    padding-top: 2px;
  }

  .page-news .news-item__title {
    grid-area: title;
  }

  .page-news .news-item__desc {
    grid-area: desc;
  }

  .page-news .news-item__stamp {
    grid-area: stamp;
    text-align: right;
    margin-top: 4px;
  }
}

@media (min-width: 1000px) {
  .page-news .news-topics {
    padding: 76px 0 46px;
  }

  .page-news .news-topics__grid {
    grid-template-columns: 1.05fr .95fr;
    gap: 36px;
    align-items: start;
  }

  .page-news .news-topic--cold {
    margin-top: 62px;
  }

  .page-news .news-rhythm__inner {
    grid-template-columns: 5fr 7fr;
    column-gap: 52px;
    align-items: start;
  }

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

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

  .page-news .news-rhythm__steps {
    grid-column: 2;
    grid-row: 2;
    margin-top: 8px;
  }

  .page-news .news-pitch__inner {
    grid-template-columns: 6fr 6fr;
    align-items: center;
    gap: 54px;
  }
}

@media (min-width: 1280px) {
  .page-news .news-stream__list {
    border-top-width: 1px;
  }

  .page-news .news-item__title {
    font-size: 18px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item::before,
  .page-news .news-item__stamp,
  .page-news .news-topic,
  .page-news .news-topic__more summary {
    transition-duration: .01ms;
    transform: none;
  }
}