.page-news .breadcrumb {
  padding-block: 22px 0;
}

/* ---------- 专栏抬头 ---------- */
.page-news .news-hero {
  padding: 36px 0 56px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
}

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

.page-news .news-hero-copy h1 {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2rem, 8.5vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .news-hero-copy .lead {
  max-width: 34em;
  color: var(--mute);
}

.page-news .news-hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-news .news-hero-media {
  margin: 0;
  position: relative;
}

.page-news .news-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(201, 162, 39, .14), transparent 58%);
}

.page-news .news-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--gold-line);
  background: linear-gradient(160deg, var(--bronze), var(--ink-2));
}

/* ---------- 列表与侧栏 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-news .news-side-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--mute);
}

.page-news .news-filter {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.page-news .news-filter-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  font-size: .9375rem;
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-news .news-filter-link:hover,
.page-news .news-filter-link:focus-visible {
  color: var(--gold-lite);
  padding-left: 6px;
}

.page-news .news-filter-count {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--mute);
}

.page-news .news-side-note {
  margin: 20px 0 16px;
  font-size: .8125rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-news .news-side .btn {
  display: inline-block;
}

/* ---------- 分组 ---------- */
.page-news .news-group + .news-group {
  margin-top: 46px;
}

.page-news .news-group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
}

.page-news .news-group-name {
  display: inline-block;
  margin: 0;
  padding: 5px 12px;
  background: var(--crimson);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .08em;
}

.page-news .news-group-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--mute);
}

/* ---------- 条目 ---------- */
.page-news .news-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.page-news .news-item:hover {
  border-bottom-color: var(--line-strong);
}

.page-news .news-item-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  align-items: baseline;
}

.page-news .news-item-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .news-item:hover .news-item-title {
  color: var(--gold-lite);
  transform: translateX(-4px);
}

.page-news .news-item-time {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--mute);
  white-space: nowrap;
}

.page-news .news-item-desc {
  margin: 9px 0 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--mute);
}

/* 头条条目 */
.page-news .news-item--lead {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 26px 0 30px;
}

.page-news .news-item-media {
  margin: 0;
}

.page-news .news-item-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  background: linear-gradient(150deg, var(--bronze), var(--ink-2));
}

.page-news .news-item--lead .news-item-title {
  font-size: 1.1875rem;
}

/* ---------- 周期专题 ---------- */
.page-news .news-cycle {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-cycle-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
}

.page-news .news-cycle-media {
  margin: 0;
}

.page-news .news-cycle-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--gold-line);
  background: linear-gradient(160deg, var(--bronze), var(--ink));
}

.page-news .news-cycle-copy h2 {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 5vw, 2.15rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .news-cycle-copy p {
  margin: 0 0 14px;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .news-cycle-ticks {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
  list-style: none;
  margin: 26px 0 28px;
  padding: 0;
}

.page-news .news-cycle-ticks li {
  padding-top: 9px;
  border-top: 2px solid var(--gold-line);
  text-align: center;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .04em;
  color: var(--mute);
}

.page-news .news-cycle-ticks li:first-child {
  border-top-color: var(--gold);
  color: var(--gold-lite);
}

/* ---------- 版本对照 ---------- */
.page-news .news-diff-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 5vw, 2.15rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .news-diff-lead {
  max-width: 46em;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .news-diff-media {
  margin: 30px 0 0;
}

.page-news .news-diff-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  background: linear-gradient(150deg, var(--bronze), var(--ink-2));
}

.page-news .news-diff-table {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1fr;
}

.page-news .news-diff-head {
  display: none;
}

.page-news .news-diff-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-diff-key {
  margin-bottom: 2px;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-news .news-diff-before,
.page-news .news-diff-after {
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--mute);
}

.page-news .news-diff-after {
  color: var(--paper);
}

.page-news .news-diff-before::before {
  content: "上一版 · ";
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .04em;
  color: var(--mute);
}

.page-news .news-diff-after::before {
  content: "3 月版 · ";
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .04em;
  color: var(--gold);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}

.page-news .news-cadence-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 5vw, 2.15rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .news-cadence-lead {
  max-width: 46em;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .news-cadence-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 30px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-cadence-cell {
  background: var(--bronze);
  padding: 24px 22px;
}

.page-news .news-cadence-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--gold);
  line-height: 1.1;
}

.page-news .news-cadence-label {
  display: block;
  margin-top: 8px;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--mute);
}

.page-news .news-cadence-cta {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--gold-line);
}

.page-news .news-cadence-cta p {
  max-width: 46em;
  margin: 0 0 22px;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--mute);
}

.page-news .news-cadence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-news .news-item-head {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 24px;
  }

  .page-news .news-cadence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-news .news-hero {
    padding: 52px 0 84px;
  }

  .page-news .news-hero-grid {
    grid-template-columns: 1.05fr 1fr;
    gap: 56px;
  }

  .page-news .news-item--lead {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-news .news-cycle-grid {
    grid-template-columns: minmax(0, 380px) minmax(0, 1fr);
    gap: 60px;
  }

  .page-news .news-diff-table {
    grid-template-columns: minmax(140px, 1fr) minmax(0, 2fr) minmax(0, 2fr);
    column-gap: 32px;
  }

  .page-news .news-diff-head {
    display: contents;
  }

  .page-news .news-diff-head > span {
    display: block;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line-strong);
    font-family: var(--font-mono);
    font-size: .75rem;
    letter-spacing: .06em;
    color: var(--mute);
  }

  .page-news .news-diff-row {
    display: contents;
  }

  .page-news .news-diff-row > span {
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }

  .page-news .news-diff-key {
    margin-bottom: 0;
    font-size: .875rem;
    font-weight: 600;
    color: var(--paper);
  }

  .page-news .news-diff-before::before,
  .page-news .news-diff-after::before {
    content: none;
  }

  .page-news .news-cadence-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-news .news-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 64px;
  }

  .page-news .news-side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-news .news-hero-copy h1 {
    font-size: clamp(2.6rem, 3.6vw, 3.5rem);
  }
}