.page-news {
  --news-rail: 220px;
}

.page-news__crumb {
  padding-top: 26px;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  display: grid;
  gap: 24px;
  padding-top: 18px;
  padding-bottom: clamp(34px, 6vw, 76px);
}

.page-news .news-hero__title {
  margin: 12px 0 0;
  font-family: var(--lb-sans);
  font-size: clamp(34px, 8vw, 74px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--lb-white);
}

.page-news .news-hero__lede {
  margin-top: 18px;
  max-width: 44ch;
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

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

.page-news .news-hero__media img,
.page-news .news-h2h__media img,
.page-news .news-possession__media img,
.page-news .news-changelog__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--lb-radius);
}

/* ---------- 左右分屏：图例 + 条目流 ---------- */

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

.page-news .news-legend {
  border-top: 1px solid var(--lb-line);
  padding-top: 16px;
}

.page-news .news-legend__title {
  margin: 0 0 14px;
  color: var(--lb-amber);
}

.page-news .news-legend__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-legend__btn {
  position: relative;
  flex: 0 1 auto;
  padding: 9px 14px 9px 15px;
  background: transparent;
  border: 1px solid var(--lb-line);
  border-radius: var(--lb-radius);
  color: var(--lb-mist);
  font-family: var(--lb-sans);
  font-size: 13px;
  line-height: 1.2;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-news .news-legend__btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 0;
  background: var(--lb-cyan);
  transform: translateY(-50%);
  transition: height 0.2s ease;
}

.page-news .news-legend__btn:hover {
  color: var(--lb-white);
  border-color: var(--lb-cyan-soft);
}

.page-news .news-legend__btn.is-active {
  color: var(--lb-cyan);
  border-color: rgba(43, 227, 192, 0.55);
  background: rgba(43, 227, 192, 0.07);
}

.page-news .news-legend__btn.is-active::before {
  height: 62%;
}

.page-news .news-legend__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: var(--lb-mist);
}

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

.page-news .news-stream__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding-bottom: 12px;
}

.page-news .news-stream__title {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--lb-white);
}

.page-news .news-stream__meta {
  margin: 0;
  font-family: var(--lb-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lb-amber);
}

/* 条目编号压在中缝上，细线贯穿整列 */

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

.page-news .news-item {
  position: relative;
  padding: 20px 14px 20px 42px;
  border-bottom: 1px solid var(--lb-line);
  transition: background-color 0.2s ease;
}

.page-news .news-item::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(43, 227, 192, 0.07) 0 1px,
    transparent 1px 5px
  );
  transition: opacity 0.25s ease;
}

.page-news .news-item:hover::after {
  opacity: 1;
}

.page-news .news-item[data-hidden] {
  display: none;
}

.page-news .news-item__index {
  position: absolute;
  left: 0;
  top: 23px;
  transform: translateX(-50%);
  padding: 0 5px;
  background: var(--lb-night);
  color: var(--lb-cyan);
  font-family: var(--lb-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-news .news-item__meta,
.page-news .news-item__title,
.page-news .news-item__sum,
.page-news .news-item__fold {
  position: relative;
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .news-item__tag {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--lb-cyan-soft);
}

.page-news .news-item__time {
  padding-left: 10px;
  border-left: 1px solid var(--lb-line);
  font-family: var(--lb-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--lb-amber);
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--lb-white);
}

.page-news .news-item__sum {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--lb-mist);
}

.page-news .news-item__fold {
  margin-top: 10px;
}

.page-news .news-item__toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lb-cyan);
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-item__toggle::before {
  content: "+";
  font-family: var(--lb-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--lb-cyan);
}

.page-news .news-item__fold[open] .news-item__toggle::before {
  content: "−";
}

.page-news .news-item__detail {
  margin: 10px 0 0;
  padding-left: 14px;
  border-left: 1px solid var(--lb-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--lb-mist);
}

/* ---------- 通用双列 ---------- */

.page-news .news-split2 {
  display: grid;
  gap: 26px;
}

.page-news .news-section__title {
  margin: 10px 0 14px;
  font-size: clamp(22px, 4.4vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--lb-white);
}

.page-news .news-h2h__copy p,
.page-news .news-possession__copy p,
.page-news .news-changelog__copy p,
.page-news .news-cadence__lead p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--lb-mist);
}

.page-news .news-h2h__copy a {
  color: var(--lb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 192, 0.4);
}

.page-news .news-h2h__copy a:hover {
  border-bottom-color: var(--lb-cyan);
}

/* ---------- 控球观察 ---------- */

.page-news .news-possession__grid {
  display: grid;
  gap: 26px;
}

.page-news .news-points {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  border-top: 1px solid var(--lb-line);
}

.page-news .news-points li {
  position: relative;
  padding: 12px 0 12px 22px;
  border-bottom: 1px solid var(--lb-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--lb-mist);
}

.page-news .news-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 12px;
  height: 1px;
  background: var(--lb-cyan);
}

/* ---------- 版本日志 ---------- */

.page-news .news-log {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--lb-line);
}

.page-news .news-log__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--lb-line);
}

.page-news .news-log__ver {
  font-family: var(--lb-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lb-orange);
}

.page-news .news-log__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--lb-mist);
}

.page-news .news-changelog__link {
  margin: 18px 0 0;
}

.page-news .news-changelog__link a {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--lb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 192, 0.45);
  padding-bottom: 2px;
}

.page-news .news-changelog__link a:hover {
  border-bottom-color: var(--lb-cyan);
}

/* ---------- 按节奏回访 ---------- */

.page-news .news-cadence__box {
  display: grid;
  gap: 24px;
  padding: clamp(24px, 5vw, 48px);
  border: 1px solid var(--lb-line);
  border-radius: var(--lb-radius);
  background: linear-gradient(
    120deg,
    rgba(11, 42, 34, 0.92),
    rgba(4, 16, 13, 0.96) 64%
  );
}

.page-news .news-cadence__lead p {
  margin-bottom: 0;
}

.page-news .news-cadence__stats {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.page-news .news-cadence__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

.page-news .news-cadence__cta .lb-btn {
  text-decoration: none;
}

/* ---------- 断点 ---------- */

@media (min-width: 760px) {
  .page-news .news-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .news-split2 {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .news-possession__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .news-item {
    padding-right: 28px;
  }

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

@media (min-width: 900px) {
  .page-news .news-split {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-news .news-legend {
    position: sticky;
    top: 92px;
    border-top: 1px solid var(--lb-cyan);
    padding-top: 14px;
  }

  .page-news .news-legend__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-news .news-legend__btn {
    width: 100%;
    text-align: left;
  }

  .page-news .news-cadence__box {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
    column-gap: clamp(28px, 4vw, 56px);
  }

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

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

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

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item::after,
  .page-news .news-legend__btn,
  .page-news .news-legend__btn::before {
    transition: none;
  }
}