.page-news {
  --n-rail: 78px;
  --n-line: rgba(154, 166, 188, 0.28);
  --n-line-soft: rgba(154, 166, 188, 0.16);
  --n-paper-line: rgba(28, 23, 18, 0.14);
  background: var(--c-ink);
  color: var(--c-white);
  overflow-x: hidden;
}

.page-news .news-crumbs-wrap {
  padding: 18px 0 14px;
  border-bottom: 1px solid var(--n-line-soft);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: 34px 0 54px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--n-line-soft) 0 1px,
    transparent 1px var(--grid-step)
  );
}
.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--n-line);
}

.page-news .news-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-news .news-hero-figure {
  margin: 0;
  order: 2;
}
.page-news .news-hero-copy {
  order: 1;
}

.page-news .figure-frame {
  position: relative;
  display: block;
  background: var(--c-ink-mid);
  overflow: hidden;
}
.page-news .news-hero-figure .figure-frame {
  border: 3px solid var(--c-ink-deep);
  box-shadow: var(--shadow-hard-dark);
}
.page-news .figure-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-news .figure-caption {
  margin-top: 10px;
  font-size: var(--fs-12);
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--c-white-52);
}

.page-news h1 {
  margin: 12px 0 16px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-news .news-hero-copy .lede {
  max-width: 62ch;
  color: var(--c-white-88);
}

.page-news .hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 24px 0 22px;
  padding: 1px;
  background: var(--n-line);
  border: 1px solid var(--n-line);
}
.page-news .hero-meta-cell {
  background: var(--c-ink);
  padding: 12px 14px;
}
.page-news .hero-meta dt {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-silver);
}
.page-news .hero-meta dd {
  margin: 6px 0 0;
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--c-gold);
}

.page-news .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 章节头补充 ---------- */
.page-news .section-note {
  max-width: 40ch;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-white-70);
  border-left: 1px solid var(--n-line);
  padding-left: 14px;
}

/* ---------- 筛选条 ---------- */
.page-news .filter-bar {
  margin-top: 26px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--c-ink-mid);
  border: 1px solid var(--n-line);
  border-left: 3px solid var(--c-gold);
}
.page-news .filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.page-news .filter-label {
  min-width: 66px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-silver);
}
.page-news .filter-btn {
  font-family: inherit;
  font-size: 13px;
  line-height: 1.4;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--c-silver-40);
  background: transparent;
  color: var(--c-white-88);
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}
.page-news .filter-btn:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}
.page-news .filter-btn:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}
.page-news .filter-btn[aria-pressed="true"],
.page-news .filter-btn.is-active {
  background: var(--c-teal);
  border-color: var(--c-teal);
  color: var(--c-ink-deep);
  font-weight: 700;
}
.page-news .filter-status {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--c-silver);
}
.page-news .filter-count {
  color: var(--c-gold);
}

/* ---------- 案例流布局 ---------- */
.page-news .case-stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 26px;
}

.page-news .case-list {
  min-width: 0;
}

.page-news .case-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-bottom: 22px;
  background: var(--c-paper);
  color: var(--c-ink-deep);
  border: 3px solid var(--c-ink-deep);
  box-shadow: var(--shadow-hard);
}

.page-news .case-rail {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--c-ink-mid);
  color: var(--c-gold);
  border-bottom: 3px solid var(--c-ink-deep);
  font-family: var(--font-mono);
}
.page-news .case-rail-batch {
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.12em;
}
.page-news .case-rail-seq {
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-silver);
}

.page-news .case-main {
  min-width: 0;
  padding: 18px 18px 16px;
}

.page-news .case-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-news .case-title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-ink-deep);
}
.page-news .case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .case-tags .tag {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border: 1px solid var(--n-paper-line);
}

.page-news .case-summary {
  margin: 14px 0 0;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--c-inktext-72);
  max-width: 68ch;
}

/* ---------- 四段结构展开 ---------- */
.page-news .case-detail {
  margin-top: 14px;
  border-top: 1px solid var(--n-paper-line);
}
.page-news .case-detail > summary {
  cursor: pointer;
  padding: 12px 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-orange);
  list-style: none;
}
.page-news .case-detail > summary::-webkit-details-marker {
  display: none;
}
.page-news .case-detail > summary::before {
  content: "＋ ";
  font-family: var(--font-mono);
}
.page-news .case-detail[open] > summary::before {
  content: "－ ";
}
.page-news .case-detail > summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 2px;
}

.page-news .case-spec {
  margin: 0 0 6px;
  padding: 0;
}
.page-news .spec-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 10px 0;
  border-top: 1px solid var(--n-paper-line);
}
.page-news .spec-row dt {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--c-ink-deep);
  font-weight: 700;
}
.page-news .spec-row dd {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--c-inktext-72);
}

/* ---------- 条目页脚 ---------- */
.page-news .case-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--n-paper-line);
}
.page-news .foot-label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-ink-deep);
}
.page-news .foot-link {
  font-size: var(--fs-12);
  color: var(--c-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-news .foot-link:hover {
  color: var(--c-ink-deep);
}
.page-news .foot-id {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--n-paper-line);
  color: var(--c-ink-deep);
}
.page-news .copy-btn {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border: 1px solid var(--c-ink-deep);
  background: transparent;
  color: var(--c-ink-deep);
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}
.page-news .copy-btn:hover {
  background: var(--c-ink-deep);
  color: var(--c-gold);
}
.page-news .copy-btn[data-copied] {
  background: var(--c-teal);
  border-color: var(--c-teal);
  color: var(--c-ink-deep);
}

/* ---------- 案例流内插图 ---------- */
.page-news .case-plate {
  margin: 26px 0 30px;
  padding: 0;
  border: 3px solid var(--c-ink-deep);
  background: var(--c-ink-mid);
  box-shadow: var(--shadow-hard-dark);
}
.page-news .case-plate .figure-caption {
  margin: 0;
  padding: 10px 14px;
  background: var(--c-ink-mid);
  border-top: 1px solid var(--n-line);
}

/* ---------- 旁注列 ---------- */
.page-news .case-aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  align-content: start;
}
.page-news .aside-block {
  padding: 16px;
  border: 1px solid var(--n-line);
  border-top: 3px solid var(--c-silver);
  background: var(--c-ink);
}
.page-news .aside-block--note {
  border-top-color: var(--c-orange);
}
.page-news .aside-title {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: var(--fs-16);
  letter-spacing: 0.01em;
  color: var(--c-white);
}
.page-news .aside-list {
  margin: 0;
  padding: 0 0 0 16px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-white-70);
}
.page-news .aside-list li + li {
  margin-top: 8px;
}
.page-news .aside-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-news .aside-links a {
  display: block;
  padding: 8px 10px;
  font-size: var(--fs-14);
  color: var(--c-white-88);
  text-decoration: none;
  border-left: 2px solid var(--c-gold);
  transition: background 0.12s ease, color 0.12s ease;
}
.page-news .aside-links a:hover {
  background: var(--c-ink-mid);
  color: var(--c-gold);
}
.page-news .aside-block p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-white-70);
}

/* ---------- 四段口径区（奶油面） ---------- */
.page-news .surface-paper {
  color: var(--c-ink-deep);
}
.page-news .news-structure .lede,
.page-news .news-revisit .lede {
  color: var(--c-inktext-72);
  max-width: 66ch;
}
.page-news .news-structure .eyebrow,
.page-news .news-revisit .eyebrow {
  color: var(--c-orange);
}

.page-news .structure-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 3px solid var(--c-ink-deep);
}
.page-news .structure-item {
  position: relative;
  padding: 20px 0 20px 0;
  border-bottom: 1px solid var(--n-paper-line);
}
.page-news .structure-num {
  display: inline-block;
  font-size: var(--fs-20);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-orange);
}
.page-news .structure-name {
  margin: 8px 0 8px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
  color: var(--c-ink-deep);
}
.page-news .structure-item p {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--c-inktext-72);
}

/* ---------- 修订轨迹 ---------- */
.page-news .revision-track {
  position: relative;
  margin: 30px 0 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid var(--n-line);
}
.page-news .revision-node {
  position: relative;
  padding: 0 0 24px 0;
}
.page-news .revision-node:last-child {
  padding-bottom: 4px;
}
.page-news .rev-dot {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--c-gold);
  box-shadow: 0 0 0 3px var(--c-ink);
}
.page-news .rev-batch {
  display: block;
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-gold);
}
.page-news .rev-kind {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  border: 1px solid var(--c-silver-40);
  padding: 3px 8px;
}
.page-news .rev-text {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-white-70);
}

.page-news .news-revision-figure {
  margin: 34px 0 0;
  border: 3px solid var(--c-ink-deep);
  box-shadow: var(--shadow-hard-dark);
  background: var(--c-ink-mid);
}
.page-news .news-revision-figure .figure-frame {
  background: var(--c-ink-mid);
}
.page-news .news-revision-figure .figure-caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--n-line);
}

/* ---------- 交叉引用表 ---------- */
.page-news .news-crossref .section-note {
  color: var(--c-white-70);
}
.page-news .table-caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--c-silver);
}
.page-news .table-wrap {
  margin-top: 24px;
  overflow-x: auto;
  border: 3px solid var(--c-ink-deep);
  box-shadow: var(--shadow-hard-dark);
  background: var(--c-paper);
}
.page-news .data-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: var(--c-paper);
  color: var(--c-ink-deep);
}
.page-news .data-table th,
.page-news .data-table td {
  padding: 12px 14px;
  text-align: left;
  font-size: var(--fs-14);
  line-height: 1.6;
  border-bottom: 1px solid var(--n-paper-line);
  white-space: nowrap;
}
.page-news .data-table thead th {
  background: var(--c-ink-mid);
  color: var(--c-white);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  border-bottom: 3px solid var(--c-ink-deep);
}
.page-news .data-table tbody th {
  font-weight: 700;
  color: var(--c-ink-deep);
}
.page-news .data-table tbody tr:nth-child(even) td,
.page-news .data-table tbody tr:nth-child(even) th {
  background: rgba(216, 222, 233, 0.45);
}
.page-news .data-table .num {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-news .crossref-note {
  margin: 20px 0 0;
  max-width: 68ch;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-white-70);
}
.page-news .crossref-note a {
  color: var(--c-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-news .crossref-note a:hover {
  color: var(--c-white);
}

/* ---------- 回访区 ---------- */
.page-news .revisit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-top: 28px;
  border-top: 3px solid var(--c-ink-deep);
}
.page-news .revisit-cell {
  padding: 20px 0;
  border-bottom: 1px solid var(--n-paper-line);
}
.page-news .revisit-title {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: var(--fs-20);
  color: var(--c-ink-deep);
}
.page-news .revisit-cell p {
  margin: 0 0 10px;
  max-width: 60ch;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-inktext-72);
}
.page-news .revisit-cell p:last-child {
  margin-bottom: 0;
}
.page-news .revisit-cell a {
  color: var(--c-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-news .revisit-cell a:hover {
  color: var(--c-ink-deep);
}
.page-news .revisit-steps {
  margin: 0;
  padding: 0 0 0 18px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-inktext-72);
}
.page-news .revisit-steps li + li {
  margin-top: 8px;
}
.page-news .revisit-contact {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--n-paper-line);
}
.page-news .revisit-contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--n-paper-line);
}
.page-news .revisit-contact .contact-label {
  min-width: 72px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-ink-deep);
}
.page-news .revisit-contact .contact-value {
  font-size: var(--fs-14);
  color: var(--c-ink-deep);
  word-break: break-all;
}
.page-news .revisit-note {
  font-size: var(--fs-12);
  color: var(--c-inktext-72);
  border-left: 3px solid var(--c-orange);
  padding-left: 12px;
}
.page-news .revisit-cell--scope {
  border-bottom: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .hero-meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .case-item {
    grid-template-columns: var(--n-rail) minmax(0, 1fr);
  }
  .page-news .case-rail {
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 14px;
    padding: 20px 6px;
    border-bottom: 0;
    border-right: 3px solid var(--c-ink-deep);
  }
  .page-news .case-rail-batch {
    writing-mode: vertical-rl;
    letter-spacing: 0.2em;
  }
  .page-news .case-main {
    padding: 22px 24px 20px;
  }
  .page-news .spec-row {
    grid-template-columns: 158px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
  .page-news .copy-btn {
    margin-left: auto;
  }
  .page-news .case-aside {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .revisit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
  }
  .page-news .revisit-cell {
    padding: 22px 0;
  }
}

@media (min-width: 980px) {
  .page-news .news-hero-grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }
  .page-news .news-hero-figure {
    order: 1;
  }
  .page-news .news-hero-copy {
    order: 2;
  }
  .page-news .structure-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }
  .page-news .structure-item {
    padding: 22px 0;
  }
  .page-news .revision-track {
    padding-left: 30px;
  }
  .page-news .rev-dot {
    left: -36px;
  }
}

@media (min-width: 1120px) {
  .page-news .case-stream {
    grid-template-columns: minmax(0, 1fr) 288px;
    gap: 40px;
  }
  .page-news .case-aside {
    grid-template-columns: minmax(0, 1fr);
    position: sticky;
    top: 108px;
  }
  .page-news .revisit-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter-btn,
  .page-news .aside-links a,
  .page-news .copy-btn {
    transition: none;
  }
}
</main>