.page-news {
  --news-flash-num: 44px;
  --news-tag-radius: 999px;
  --news-line: var(--line);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  padding-top: clamp(20px, 4vw, 46px);
}

.page-news .news-hero .breadcrumb {
  margin-bottom: 4px;
}

.page-news .news-hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.8rem, 10vw, 6rem);
  line-height: 0.94;
  letter-spacing: 0.015em;
  color: var(--paper);
  margin: 8px 0 0;
}

.page-news .news-hero__sub {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1rem, 1.7vw, 1.28rem);
  letter-spacing: 0.05em;
  line-height: 1.5;
  color: var(--mist);
  margin: 12px 0 0;
  max-width: 30ch;
}

.page-news .news-hero__head .lede {
  margin-top: 18px;
}

.page-news .news-hero__media {
  width: 100%;
}

/* ---------- 类别跳转 ---------- */
.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
  border-top: 1px solid var(--news-line);
  border-bottom: 1px solid var(--news-line);
  margin: 0 0 clamp(26px, 4vw, 48px);
}

.page-news .news-filters__item {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--mist);
  padding: 6px 13px;
  border: 1px solid var(--news-line);
  border-radius: var(--news-tag-radius);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-news .news-filters__item:hover,
.page-news .news-filters__item:focus-visible {
  color: var(--cyan);
  border-color: rgba(43, 227, 200, 0.5);
  background: rgba(43, 227, 200, 0.07);
}

/* ---------- 章节标题 ---------- */
.page-news .section-head h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  letter-spacing: 0.02em;
  line-height: 1.12;
  color: var(--paper);
  margin: 6px 0 0;
}

.page-news .section-head {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-news .news-subhead {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clay);
  margin: clamp(24px, 4vw, 36px) 0 4px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-subhead:first-child {
  margin-top: 0;
}

/* ---------- 速览列表 ---------- */
.page-news .flash {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--news-line);
}

.page-news .flash__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--news-line);
  transition: background 0.22s ease, padding-left 0.22s ease;
}

.page-news .flash__item:hover {
  background: var(--glass);
  padding-left: 12px;
}

.page-news .flash__num {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-news .flash__title {
  grid-column: 2;
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--paper);
  transition: color 0.2s ease;
}

.page-news .flash__item:hover .flash__title {
  color: var(--cyan);
}

.page-news .flash__meta {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

/* ---------- 条目流 ---------- */
.page-news .log {
  list-style: none;
  counter-reset: logitem;
  position: relative;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0 0 0 26px;
}

.page-news .log::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--news-line);
}

.page-news .log__item {
  position: relative;
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--news-line);
  transition: background 0.22s ease;
}

.page-news .log__item::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 26px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--board);
  border: 1px solid var(--news-line);
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-news .log__item:hover {
  background: var(--glass);
}

.page-news .log__item:hover::before {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(43, 227, 200, 0.14);
}

.page-news .log__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.page-news .log__time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-news .log__title {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--paper);
  margin: 9px 0 0;
  transition: color 0.2s ease;
}

.page-news .log__title::before {
  counter-increment: logitem;
  content: counter(logitem, decimal-leading-zero);
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--cyan);
  margin-right: 10px;
  vertical-align: 2px;
}

.page-news .log__item:hover .log__title {
  color: var(--cyan);
}

.page-news .log__text {
  margin: 7px 0 0;
  font-size: 14.8px;
  line-height: 1.88;
  color: var(--mist);
  max-width: 46ch;
}

.page-news .log__extra {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
  border-left: 2px solid transparent;
  transition: max-height 0.3s ease, opacity 0.22s ease, margin 0.3s ease,
    padding 0.3s ease, border-color 0.22s ease;
}

.page-news .log__item:hover .log__extra,
.page-news .log__item:focus-within .log__extra {
  max-height: 140px;
  opacity: 1;
  margin-top: 10px;
  padding-left: 12px;
  border-left-color: rgba(43, 227, 200, 0.4);
}

/* ---------- 标签 ---------- */
.page-news .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1;
  padding: 5px 10px;
  border-radius: var(--news-tag-radius);
  border: 1px solid var(--news-line);
  color: var(--mist);
  background: var(--glass);
  white-space: nowrap;
}

.page-news .tag--update {
  color: var(--cyan);
  border-color: rgba(43, 227, 200, 0.38);
  background: rgba(43, 227, 200, 0.08);
}

.page-news .tag--venue {
  color: var(--clay);
  border-color: rgba(242, 163, 86, 0.38);
  background: rgba(242, 163, 86, 0.08);
}

.page-news .tag--version {
  color: var(--paper);
  border-color: var(--stone);
  background: rgba(232, 237, 233, 0.05);
}

.page-news .tag--tip {
  color: var(--mist);
  border-color: var(--stone);
}

.page-news .tag--series {
  color: var(--cyan);
  border-color: rgba(43, 227, 200, 0.24);
  background: transparent;
}

/* ---------- 左右分栏 ---------- */
.page-news .news-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-news .news-split__media {
  width: 100%;
  aspect-ratio: 3 / 2;
}

.page-news .news-split__media--square {
  aspect-ratio: 1 / 1;
}

.page-news .news-split__body .lede {
  margin-top: 0;
}

/* ---------- 媒体容器 ---------- */
.page-news .media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  margin: 0;
  background: var(--turf);
  border: 1px solid var(--news-line);
}

.page-news .media-frame--landscape {
  aspect-ratio: 16 / 9;
}

.page-news .media-frame--square {
  aspect-ratio: 1 / 1;
}

.page-news .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.78) brightness(0.84);
}

.page-news .media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: linear-gradient(180deg, transparent, rgba(11, 31, 26, 0.82));
}

/* ---------- 低密度说明 ---------- */
.page-news .news-note {
  margin: clamp(30px, 5vw, 58px) 0;
  padding: clamp(20px, 3vw, 30px) 0 clamp(20px, 3vw, 30px) clamp(18px, 3vw, 30px);
  border-left: 2px solid var(--clay);
  background: linear-gradient(90deg, rgba(242, 163, 86, 0.08), transparent 72%);
}

.page-news .news-note__text {
  margin: 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.92;
  color: var(--mist);
}

/* ---------- 正文尾注与链接 ---------- */
.page-news .news-tail {
  margin: clamp(22px, 3.5vw, 34px) 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--stone);
  max-width: 50ch;
}

.page-news .news-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 200, 0.42);
  padding-bottom: 1px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-news .news-link:hover,
.page-news .news-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 行动收束 ---------- */
.page-news .news-cta {
  position: relative;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--news-line);
  background: linear-gradient(142deg, var(--board), var(--turf) 62%, var(--ink));
  overflow: hidden;
}

.page-news .news-cta::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: clamp(90px, 18vw, 200px);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.page-news .news-cta__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.8rem, 4.2vw, 2.9rem);
  line-height: 1.08;
  letter-spacing: 0.02em;
  color: var(--paper);
  margin: 8px 0 0;
}

.page-news .news-cta__text {
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.92;
  color: var(--mist);
}

.page-news .news-cta .cta-row {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 800px) {
  .page-news .flash__item {
    grid-template-columns: var(--news-flash-num) minmax(0, 1fr) auto;
    gap: 6px 18px;
    padding: 15px 12px 15px 0;
  }

  .page-news .flash__meta {
    grid-column: 3;
    text-align: right;
  }

  .page-news .news-filters {
    gap: 10px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-news .news-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    grid-template-areas:
      "crumb crumb"
      "head media";
    column-gap: clamp(28px, 4vw, 60px);
    align-items: end;
  }

  .page-news .news-hero .breadcrumb {
    grid-area: crumb;
  }

  .page-news .news-hero__head {
    grid-area: head;
    padding-bottom: 6px;
  }

  .page-news .news-hero__media {
    grid-area: media;
    align-self: end;
  }

  .page-news .news-hero__title {
    font-size: clamp(3.4rem, 7vw, 5.6rem);
  }
}

@media (min-width: 960px) {
  .page-news .news-split {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-split--flip .news-split__media {
    grid-column: 1;
    grid-row: 1;
  }

  .page-news .news-split--flip .news-split__body {
    grid-column: 2;
    grid-row: 1;
  }

  .page-news .news-split__media,
  .page-news .news-split__media--square {
    position: sticky;
    top: clamp(24px, 4vw, 48px);
  }
}

/* ---------- 窄屏兜底：悬停内容直接可见 ---------- */
@media (max-width: 899px) {
  .page-news .log__extra {
    max-height: none;
    opacity: 1;
    margin-top: 10px;
    padding-left: 12px;
    border-left-color: var(--news-line);
  }

  .page-news .log,
  .page-news .flash {
    padding-right: 0;
  }
}