.page-news {
  --news-shell: 1180px;
  --tag-setting: #8fb6d8;
  --news-gap: clamp(52px, 9vw, 96px);
  color: var(--ink);
  padding-block-start: clamp(84px, 12vw, 128px);
  overflow-x: hidden;
}

.page-news a {
  color: inherit;
  text-decoration: none;
}

.page-news .breadcrumb {
  max-width: var(--news-shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-news .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ink-dim);
}

.page-news .breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-news .breadcrumb-list li + li::before {
  content: "/";
  color: var(--line);
}

.page-news .breadcrumb-list a {
  color: var(--ink-dim);
  transition: color 0.18s var(--ease);
}

.page-news .breadcrumb-list a:hover,
.page-news .breadcrumb-list a:focus-visible {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  max-width: var(--news-shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(8px, 2vw, 20px) clamp(34px, 6vw, 58px);
  isolation: isolate;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: -60px -10% auto -10%;
  height: 130%;
  z-index: -1;
  background-image:
    linear-gradient(rgba(90, 110, 130, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 110, 130, 0.14) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse at 22% 0%, #000 0%, transparent 70%);
  mask-image: radial-gradient(ellipse at 22% 0%, #000 0%, transparent 70%);
  pointer-events: none;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  top: clamp(6px, 2vw, 18px);
  width: 4px;
  height: clamp(96px, 18vw, 168px);
  border-radius: var(--pill);
  background: linear-gradient(180deg, var(--orange), rgba(47, 227, 210, 0.2));
  pointer-events: none;
}

.page-news .news-hero > * {
  position: relative;
  z-index: 1;
}

.page-news .news-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .news-hero-title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 56px);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-news .news-hero-lede {
  margin: clamp(16px, 3vw, 24px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(22px, 4vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 9px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--pill);
  background: var(--surface);
  font-size: 13px;
  color: var(--ink-dim);
}

.page-news .news-meta-num {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--ink);
}

/* ---------- 通用区块 ---------- */
.page-news .news-section {
  max-width: var(--news-shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: 0 var(--news-gap);
}

.page-news .news-section-head {
  display: grid;
  gap: 10px;
  max-width: 66ch;
  margin-bottom: clamp(22px, 4vw, 34px);
}

.page-news .news-section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 4.2vw, 34px);
  line-height: 1.22;
}

.page-news .news-section-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .news-figure {
  margin: clamp(20px, 4vw, 34px) 0 0;
}

.page-news .news-figure .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: linear-gradient(150deg, var(--abyss-2), var(--abyss));
}

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

.page-news .news-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-dim);
}

.page-news .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--cyan);
  border-bottom: 1px solid rgba(47, 227, 210, 0.35);
  padding-bottom: 2px;
  align-self: start;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .link-arrow::after {
  content: "→";
  font-family: var(--font-mono);
}

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

.page-news .code-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  border-bottom: 2px solid var(--cyan);
  padding-bottom: 2px;
}

/* ---------- 标签 ---------- */
.page-news .tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--line-mid);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-news .tag--adapt {
  color: var(--cyan);
  border-color: rgba(47, 227, 210, 0.45);
  background: rgba(47, 227, 210, 0.1);
}

.page-news .tag--entry {
  color: var(--orange);
  border-color: rgba(255, 107, 44, 0.45);
  background: rgba(255, 107, 44, 0.12);
}

.page-news .tag--export {
  color: var(--orange-soft);
  border-color: rgba(255, 162, 107, 0.45);
  background: rgba(255, 162, 107, 0.1);
}

.page-news .tag--setting {
  color: var(--tag-setting);
  border-color: rgba(143, 182, 216, 0.45);
  background: rgba(143, 182, 216, 0.1);
}

/* ---------- 最近批次摘要 ---------- */
.page-news .summary-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-news .summary-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 3.4vw, 28px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
}

.page-news .summary-card--feature {
  border-color: rgba(255, 107, 44, 0.4);
  background: linear-gradient(155deg, rgba(255, 107, 44, 0.18), rgba(15, 33, 54, 0.9) 62%);
}

.page-news .summary-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .summary-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.8vw, 21px);
  line-height: 1.4;
}

.page-news .summary-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 四类变更 ---------- */
.page-news .cat-layout {
  display: grid;
  gap: 18px;
}

.page-news .cat-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-news .cat-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--line-mid);
  background: var(--surface);
}

.page-news .cat-card--adapt { border-top-color: var(--cyan); }
.page-news .cat-card--entry { border-top-color: var(--orange); }
.page-news .cat-card--export { border-top-color: var(--orange-soft); }
.page-news .cat-card--setting { border-top-color: var(--tag-setting); }

.page-news .cat-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--line);
}

.page-news .cat-card-title {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
}

.page-news .cat-card-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .news-figure--side {
  margin-top: 0;
}

/* ---------- 时间轴 ---------- */
.page-news .timeline {
  position: relative;
  display: grid;
  gap: 16px;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: var(--pill);
  background: linear-gradient(180deg, var(--orange), rgba(47, 227, 210, 0.75));
  opacity: 0.5;
}

.page-news .timeline-item {
  position: relative;
  display: grid;
  gap: 12px;
  padding: clamp(16px, 3vw, 22px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: var(--surface);
  scroll-margin-top: 96px;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-news .timeline-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 26px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--graphite);
}

.page-news .timeline-item:target {
  border-color: rgba(47, 227, 210, 0.75);
  background: linear-gradient(150deg, rgba(47, 227, 210, 0.12), var(--surface) 60%);
}

.page-news .timeline-item:target::before {
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(47, 227, 210, 0.18);
}

.page-news .timeline-aside {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-news .timeline-time {
  font-size: 12px;
  color: var(--ink-dim);
  letter-spacing: 0.04em;
}

.page-news .timeline-body {
  display: grid;
  gap: 10px;
}

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

.page-news .timeline-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2.6vw, 19px);
  line-height: 1.45;
}

.page-news .timeline-summary {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .timeline-detail {
  border-top: 1px dashed var(--line-soft);
  padding-top: 10px;
}

.page-news .timeline-detail summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--cyan);
}

.page-news .timeline-detail summary::-webkit-details-marker { display: none; }
.page-news .timeline-detail summary::marker { content: ""; }

.page-news .timeline-detail summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
}

.page-news .timeline-detail[open] summary::after {
  content: "–";
}

.page-news .timeline-detail summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-news .timeline-list {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .timeline-list li::marker {
  color: var(--orange);
}

.page-news .timeline-more {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 专题系列 ---------- */
.page-news .series-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-news .series-card {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: clamp(18px, 3vw, 24px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
}

.page-news .series-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange-soft);
}

.page-news .series-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
}

.page-news .series-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .series-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--line);
}

/* ---------- 回看指引 ---------- */
.page-news .recap-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

.page-news .recap-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .recap-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: var(--surface);
}

.page-news .recap-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--pill);
  border: 1px solid rgba(255, 107, 44, 0.5);
  background: rgba(255, 107, 44, 0.12);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange-soft);
}

.page-news .recap-step-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.45;
}

.page-news .recap-step-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .recap-panel {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(20px, 3.4vw, 28px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(47, 227, 210, 0.32);
  background: linear-gradient(160deg, rgba(47, 227, 210, 0.12), rgba(15, 33, 54, 0.9) 65%);
}

.page-news .recap-panel-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.4;
}

.page-news .recap-panel-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-news .recap-links {
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .recap-panel-note {
  margin: 6px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-dim);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 760px) {
  .page-news .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news .summary-card--feature {
    grid-column: span 2;
  }

  .page-news .news-figure--side {
    margin-top: 4px;
  }
}

@media (min-width: 900px) {
  .page-news .timeline {
    padding-left: 44px;
  }

  .page-news .timeline::before {
    left: 9px;
  }

  .page-news .timeline-item {
    grid-template-columns: 168px 1fr;
    gap: 26px;
    padding: 24px 26px;
  }

  .page-news .timeline-item::before {
    left: -41px;
    top: 30px;
    width: 14px;
    height: 14px;
  }

  .page-news .timeline-aside {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    border-right: 1px solid var(--line-soft);
    padding-right: 18px;
  }

  .page-news .timeline-more {
    padding-left: 44px;
  }

  .page-news .cat-layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .recap-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-news .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .link-arrow,
  .page-news .timeline-item,
  .page-news .breadcrumb-list a {
    transition: none;
  }
}