.page-news {
  --news-quiet: #46586a;
  --news-hair: rgba(167, 198, 221, .55);
  --news-sticky: 96px;
  background: var(--snow);
  color: var(--ink);
  padding-bottom: clamp(56px, 9vw, 120px);
}

/* ── 首屏 ───────────────────────────────── */
.page-news .news-masthead {
  position: relative;
  background: var(--night);
  color: var(--snow);
  overflow: hidden;
}

.page-news .news-masthead-media {
  position: relative;
  display: block;
  width: 100%;
  background: var(--ice);
  overflow: hidden;
}

.page-news .news-masthead-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.page-news .news-masthead-copy {
  position: relative;
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(36px, 6vw, 80px);
}

.page-news .news-masthead-copy::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--pad-x);
  width: 72px;
  height: 4px;
  background: var(--orange);
}

.page-news .news-masthead-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-news .news-masthead-title {
  margin: clamp(12px, 2vw, 22px) 0 0;
  font-family: var(--font-head);
  font-size: clamp(52px, 12vw, 132px);
  line-height: .94;
  letter-spacing: -.03em;
  font-weight: 900;
  color: var(--snow);
}

.page-news .news-masthead-lede {
  margin: clamp(18px, 2.6vw, 30px) 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--rime);
}

/* ── 主体骨架 ───────────────────────────── */
.page-news .news-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 52px);
  padding-top: clamp(36px, 6vw, 84px);
}

.page-news .news-stream {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(44px, 6vw, 84px);
}

/* ── 分类索引 ───────────────────────────── */
.page-news .news-index {
  min-width: 0;
}

.page-news .news-index-head {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--snowline);
}

.page-news .news-index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .news-index-list li {
  flex: 0 0 auto;
}

.page-news .news-index-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ice);
  text-decoration: none;
  background: var(--snow);
  border: 1px solid var(--news-hair);
  border-left: 3px solid transparent;
  white-space: nowrap;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}

.page-news .news-index-num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  color: var(--snowline);
}

.page-news .news-index-list a:hover,
.page-news .news-index-list a:focus-visible {
  border-left-color: var(--orange);
  background: rgba(111, 211, 232, .14);
  color: var(--night);
  outline: none;
}

/* ── 区块与标题 ─────────────────────────── */
.page-news .news-block {
  min-width: 0;
  scroll-margin-top: var(--news-sticky);
}

.page-news .news-block-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--news-hair);
}

.page-news .news-block-head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-news .news-block-head .title-lg {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -.015em;
  font-weight: 800;
  color: var(--night);
}

.page-news .news-block-note {
  margin: 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-quiet);
}

/* ── 配图 ───────────────────────────────── */
.page-news .news-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-news .news-figure .media-frame {
  display: block;
  width: 100%;
  background: var(--ice);
  overflow: hidden;
}

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

.page-news .news-figure-cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--snowline);
}

/* ── 条目流 ─────────────────────────────── */
.page-news .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--news-hair);
}

.page-news .entry {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 8px;
  padding: clamp(16px, 2.4vw, 24px) 12px clamp(16px, 2.4vw, 24px) 0;
  border-bottom: 1px solid var(--news-hair);
  transition: background-color 200ms var(--ease), padding-left 200ms var(--ease);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  background: rgba(111, 211, 232, .10);
  padding-left: 12px;
}

.page-news .entry-num {
  grid-column: 1;
  grid-row: 1;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--snowline);
}

.page-news .entry-body {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
}

.page-news .entry-title {
  display: inline;
  font-family: var(--font-head);
  font-size: clamp(16px, 1.5vw, 19px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 2px;
  background-image: linear-gradient(var(--orange), var(--orange));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 2px;
  transition: background-size 220ms var(--ease);
}

.page-news .entry:hover .entry-title,
.page-news .entry-title:focus-visible {
  background-size: 100% 2px;
  outline: none;
}

.page-news .entry-sum {
  margin: 7px 0 0;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--news-quiet);
}

.page-news .entry-tag {
  grid-column: 2;
  grid-row: 2;
  justify-self: start;
  align-self: start;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: .08em;
  color: var(--ice);
  background: var(--snow);
  border: 1px solid var(--news-hair);
  white-space: nowrap;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-news .entry:hover .entry-tag {
  border-color: var(--snowline);
  color: var(--snowline);
}

/* ── 专题系列 ───────────────────────────── */
.page-news .series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .series-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 20px;
  padding: clamp(20px, 3vw, 30px) clamp(20px, 3.2vw, 36px);
  background: var(--ice);
  color: var(--snow);
  border-left: 4px solid var(--orange);
  transition: transform 200ms var(--ease), background-color 200ms var(--ease);
}

.page-news .series-banner:hover {
  background: var(--night);
  transform: translateX(4px);
}

.page-news .series-name {
  font-family: var(--font-head);
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-news .series-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* ── 纠错与投稿 ─────────────────────────── */
.page-news .submit-panel {
  padding: clamp(24px, 4vw, 44px);
  background: var(--night);
  color: var(--snow);
}

.page-news .submit-lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--rime);
}

.page-news .submit-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid rgba(167, 198, 221, .28);
}

.page-news .submit-steps li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(167, 198, 221, .28);
}

.page-news .submit-step-num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-news .submit-step-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--snow);
}

.page-news .submit-step-note {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--rime);
}

.page-news .submit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 34px);
}

/* ── 桌面布局 ───────────────────────────── */
@media (min-width: 900px) {
  .page-news .entry {
    grid-template-columns: 62px minmax(0, 1fr) auto;
    column-gap: 22px;
    align-items: baseline;
  }

  .page-news .entry-tag {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
  }
}

@media (min-width: 1024px) {
  .page-news .news-shell {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(40px, 4.5vw, 84px);
    align-items: start;
  }

  .page-news .news-index {
    position: sticky;
    top: var(--news-sticky);
  }

  .page-news .news-index-list {
    flex-direction: column;
    gap: 0;
    padding: 0;
    overflow: visible;
    border-top: 1px solid var(--news-hair);
  }

  .page-news .news-index-list li {
    flex: none;
  }

  .page-news .news-index-list a {
    display: flex;
    width: 100%;
    padding: 12px 12px 12px 16px;
    background: transparent;
    border: 0;
    border-left: 3px solid transparent;
    border-bottom: 1px solid var(--news-hair);
    white-space: normal;
    line-height: 1.5;
  }

  .page-news .news-index-list a:hover,
  .page-news .news-index-list a:focus-visible {
    background: rgba(111, 211, 232, .12);
    transform: translateX(4px);
  }

  .page-news .news-masthead-title {
    max-width: 12ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-index-list a,
  .page-news .entry,
  .page-news .entry-title,
  .page-news .series-banner,
  .page-news .entry-tag {
    transition: none;
  }

  .page-news .series-banner:hover,
  .page-news .news-index-list a:hover {
    transform: none;
  }
}