.page-news {
  --news-line: rgba(127, 191, 166, 0.22);
  --news-line-soft: rgba(127, 191, 166, 0.12);
  --news-amber-line: rgba(242, 169, 59, 0.34);
  --news-axis: 120px;
}

/* ---------- 首屏 ---------- */

.page-news .news-intro {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.2rem, 3vw, 2.2rem) clamp(2rem, 5vw, 3.4rem);
}

.page-news .news-intro::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -16%;
  width: min(660px, 78vw);
  height: min(660px, 78vw);
  background: radial-gradient(circle at 58% 42%, rgba(127, 191, 166, 0.16), rgba(7, 11, 20, 0) 62%);
  pointer-events: none;
}

.page-news .news-intro__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 2.8rem);
}

.page-news .news-intro__title {
  margin: 0.5rem 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.1rem, 7.5vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-news .news-intro__lede {
  margin-top: 1rem;
  max-width: 44ch;
  color: var(--index-gray);
}

.page-news .news-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.4rem;
}

.page-news .news-intro__figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: var(--news-line-soft) solid rgba(127, 191, 166, 0.12);
}

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

.page-news .pulse {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .pulse__item {
  display: grid;
  gap: 0.28rem;
  padding: 0.85rem 1rem;
  background: var(--ink-800);
}

.page-news .pulse__num {
  color: var(--amber);
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.page-news .pulse__label {
  color: var(--index-gray);
  font-size: 0.86rem;
  line-height: 1.6;
}

/* ---------- 栏目轨道导航 ---------- */

.page-news .rail-nav {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.4rem;
  padding-bottom: 0.9rem;
  overflow-x: auto;
  border-bottom: 1px solid var(--news-line-soft);
  scrollbar-width: thin;
}

.page-news .rail-nav__link {
  flex: 0 0 auto;
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius-pill);
  color: var(--mist);
  font-size: 0.86rem;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-news .rail-nav__link:hover,
.page-news .rail-nav__link:focus-visible {
  border-color: var(--news-amber-line);
  color: var(--amber-soft);
  background: rgba(242, 169, 59, 0.09);
}

/* ---------- 时间线 ---------- */

.page-news .track {
  position: relative;
  list-style: none;
  margin: clamp(1.4rem, 3vw, 2.2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.page-news .track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0.6rem;
  bottom: 0.6rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(127, 191, 166, 0.6), rgba(127, 191, 166, 0.07));
}

.page-news .track__item {
  position: relative;
  padding-left: 2.1rem;
}

.page-news .track__when {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  color: var(--celadon);
  font-size: 0.86rem;
  letter-spacing: 0.06em;
}

.page-news .track__dot {
  position: absolute;
  left: 3px;
  top: 0.3rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--celadon);
  box-shadow: 0 0 0 4px rgba(127, 191, 166, 0.14);
}

.page-news .track__stamp {
  font-size: 0.86rem;
}

/* ---------- 简报卡 ---------- */

.page-news .brief {
  padding: clamp(1rem, 2.6vw, 1.45rem);
  background: linear-gradient(155deg, var(--ink-700), rgba(14, 26, 43, 0.9));
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius-md);
  transition: border-color 200ms var(--ease);
}

.page-news .brief:hover {
  border-color: rgba(127, 191, 166, 0.3);
}

.page-news .brief--amber {
  border-color: var(--news-amber-line);
  box-shadow: inset 3px 0 0 var(--amber);
}

.page-news .brief__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.7rem;
}

.page-news .brief__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--mist);
}

.page-news .brief__summary {
  margin: 0;
  color: var(--index-gray);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-news .brief .fold {
  margin-top: 0.8rem;
}

/* ---------- 版本日志 ---------- */

.page-news .versions-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.4rem, 3vw, 2.4rem);
  margin-top: clamp(1.4rem, 3vw, 2.2rem);
}

.page-news .log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--news-line-soft);
}

.page-news .log__row {
  display: grid;
  gap: 0.35rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--news-line-soft);
}

.page-news .log__season {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

.page-news .log__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--mist);
  line-height: 1.45;
}

.page-news .log__note {
  margin: 0.35rem 0 0;
  color: var(--index-gray);
  font-size: 0.94rem;
  line-height: 1.75;
}

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

/* ---------- 专题 ---------- */

.page-news .series-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.4rem, 3vw, 2.2rem);
  margin-top: clamp(1.4rem, 3vw, 2.2rem);
}

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

.page-news .series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-news .series-item {
  position: relative;
  padding: 1.05rem 1.15rem 1.05rem 1.35rem;
  background: rgba(20, 38, 61, 0.6);
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius-md);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease);
}

.page-news .series-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.15rem;
  bottom: 1.15rem;
  width: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--celadon), rgba(127, 191, 166, 0.1));
}

.page-news .series-item:hover {
  border-color: rgba(127, 191, 166, 0.3);
  transform: translateX(3px);
}

.page-news .series-item__kicker {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-news .series-item__title {
  margin: 0.4rem 0 0.45rem;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--mist);
}

.page-news .series-item__body {
  margin: 0;
  color: var(--index-gray);
  font-size: 0.93rem;
  line-height: 1.75;
}

/* ---------- 年鉴与节奏 ---------- */

.page-news .annual-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.4rem, 3vw, 2.4rem);
  align-items: start;
}

.page-news .annual-layout__head {
  margin-bottom: 0.9rem;
}

.page-news .annual-layout__lede {
  margin: 0 0 1.3rem;
  max-width: 46ch;
  color: var(--index-gray);
  font-size: 1rem;
  line-height: 1.8;
}

.page-news .rhythm {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .rhythm__item {
  display: grid;
  gap: 0.3rem;
  padding: 0.95rem 1.05rem;
  background: var(--ink-800);
}

.page-news .rhythm__mark {
  font-size: 0.86rem;
  color: var(--celadon);
  letter-spacing: 0.04em;
}

.page-news .rhythm__text {
  margin: 0;
  color: var(--index-gray);
  font-size: 0.92rem;
  line-height: 1.7;
}

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

/* ---------- 订阅与反馈 ---------- */

.page-news .subscribe {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.3rem, 3vw, 2.2rem);
  padding: clamp(1.3rem, 3.5vw, 2.1rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 92% 8%, rgba(242, 169, 59, 0.16), rgba(7, 11, 20, 0) 58%),
    linear-gradient(150deg, var(--ink-700), var(--ink-800));
  border: 1px solid var(--news-amber-line);
}

.page-news .subscribe__title {
  margin: 0.5rem 0 0.7rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.3;
  color: var(--mist);
}

.page-news .subscribe__lede {
  margin: 0;
  max-width: 46ch;
  color: var(--index-gray);
  font-size: 0.97rem;
  line-height: 1.8;
}

.page-news .subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.3rem;
}

.page-news .subscribe__contact {
  align-self: start;
  padding: 1rem 1.1rem;
  background: rgba(7, 11, 20, 0.55);
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius-md);
}

.page-news .subscribe__contact .contact-list__item {
  display: grid;
  gap: 0.25rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--news-line-soft);
}

.page-news .subscribe__contact .contact-list__item:last-of-type {
  border-bottom: 0;
}

.page-news .subscribe__contact .contact-list__value {
  color: var(--mist);
  font-size: 0.95rem;
  word-break: break-all;
}

.page-news .subscribe__contact .copy-btn {
  justify-self: start;
  margin-top: 0.35rem;
}

.page-news .subscribe__hint {
  margin: 0.9rem 0 0;
  color: var(--index-gray);
  font-size: 0.86rem;
  line-height: 1.7;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news .pulse {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-news .track::before {
    left: var(--news-axis);
  }

  .page-news .track__item {
    display: grid;
    grid-template-columns: var(--news-axis) minmax(0, 1fr);
    gap: 1.7rem;
    padding-left: 0;
  }

  .page-news .track__when {
    position: relative;
    justify-content: flex-end;
    align-items: flex-start;
    margin: 0;
    padding: 1.05rem 1rem 0 0;
  }

  .page-news .track__dot {
    left: auto;
    right: 0;
    top: 1.25rem;
    transform: translateX(50%);
  }
}

@media (min-width: 900px) {
  .page-news .news-intro__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
  }

  .page-news .versions-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
  }

  .page-news .series-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-news .series-layout__figure {
    position: sticky;
    top: 1.5rem;
  }

  .page-news .annual-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-news .subscribe {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .series-item,
  .page-news .brief,
  .page-news .rail-nav__link {
    transition: none;
  }

  .page-news .series-item:hover {
    transform: none;
  }

  .page-news .series-layout__figure {
    position: static;
  }
}