.page-news {
  --axis-gap: clamp(26px, 4vw, 38px);
  isolation: isolate;
  position: relative;
  overflow-x: clip;
  color: var(--fog);
  font-family: var(--font-body);
  background:
    radial-gradient(1000px 480px at 92% -10%, rgba(30, 91, 255, 0.22), transparent 64%),
    radial-gradient(700px 380px at 4% 8%, rgba(0, 229, 255, 0.09), transparent 70%),
    linear-gradient(180deg, rgba(7, 10, 18, 0), rgba(12, 20, 36, 0.5) 44%, rgba(7, 10, 18, 0.2));
}

.page-news,
.page-news * {
  box-sizing: border-box;
}

.page-news::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(18, 41, 74, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(18, 41, 74, 0.55) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 62%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 62%);
  opacity: 0.55;
}

.page-news img {
  max-width: 100%;
  height: auto;
}

/* ---------- 页头 ---------- */
.page-news .news-top {
  padding-top: clamp(12px, 2vw, 20px);
}

.page-news .breadcrumbs {
  margin-bottom: clamp(16px, 2.5vw, 26px);
}

.page-news .news-masthead {
  display: grid;
  gap: clamp(20px, 3vw, 42px);
  padding-bottom: clamp(26px, 4vw, 46px);
  border-bottom: 1px solid rgba(18, 41, 74, 0.9);
}

.page-news .news-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .news-kicker .num {
  margin-right: 10px;
  color: var(--orange);
}

.page-news .t-display {
  margin: 0 0 14px;
  font-size: clamp(29px, 6.2vw, 56px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.page-news .news-lede {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: var(--slate);
}

.page-news .news-metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(18, 41, 74, 0.85);
  border: 1px solid rgba(18, 41, 74, 0.85);
}

.page-news .news-metrics li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(9, 14, 26, 0.94);
}

.page-news .metric-num {
  font-family: var(--font-mono);
  font-size: clamp(21px, 3vw, 29px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-news .metric-label {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 首屏图 ---------- */
.page-news .news-hero {
  position: relative;
  margin: 0 0 clamp(34px, 5vw, 64px);
  padding: clamp(8px, 1.2vw, 14px);
  background: linear-gradient(150deg, rgba(12, 20, 36, 0.96), rgba(7, 10, 18, 0.92));
  border: 1px solid rgba(30, 91, 255, 0.4);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), 0 100%);
}

.page-news .news-hero img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
}

.page-news .hero-tag {
  position: absolute;
  top: clamp(16px, 2.4vw, 26px);
  left: clamp(16px, 2.4vw, 26px);
  z-index: 2;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--cyan);
}

.page-news .news-hero figcaption {
  padding: 12px 4px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--slate);
}

/* ---------- 筛选与列表 ---------- */
.page-news .board-head {
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

.page-news .board-note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .nf-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid rgba(18, 41, 74, 0.9);
}

.page-news .filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid rgba(18, 41, 74, 1);
  background: rgba(12, 20, 36, 0.62);
  color: var(--slate);
  font-size: 13.5px;
  line-height: 1.2;
  cursor: pointer;
  transition:
    color 0.18s var(--ease),
    border-color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}

.page-news .filter-tab:hover {
  color: var(--paper);
  border-color: rgba(30, 91, 255, 0.85);
  transform: translateY(-2px);
}

.page-news .filter-count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  opacity: 0.62;
}

.page-news #nf-all:checked ~ .filter-row label[for="nf-all"],
.page-news #nf-version:checked ~ .filter-row label[for="nf-version"],
.page-news #nf-archive:checked ~ .filter-row label[for="nf-archive"],
.page-news #nf-guide:checked ~ .filter-row label[for="nf-guide"],
.page-news #nf-stage:checked ~ .filter-row label[for="nf-stage"],
.page-news #nf-device:checked ~ .filter-row label[for="nf-device"],
.page-news #nf-service:checked ~ .filter-row label[for="nf-service"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.page-news #nf-all:focus-visible ~ .filter-row label[for="nf-all"],
.page-news #nf-version:focus-visible ~ .filter-row label[for="nf-version"],
.page-news #nf-archive:focus-visible ~ .filter-row label[for="nf-archive"],
.page-news #nf-guide:focus-visible ~ .filter-row label[for="nf-guide"],
.page-news #nf-stage:focus-visible ~ .filter-row label[for="nf-stage"],
.page-news #nf-device:focus-visible ~ .filter-row label[for="nf-device"],
.page-news #nf-service:focus-visible ~ .filter-row label[for="nf-service"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news #nf-version:checked ~ .news-stream .entry:not(.cat-version),
.page-news #nf-archive:checked ~ .news-stream .entry:not(.cat-archive),
.page-news #nf-guide:checked ~ .news-stream .entry:not(.cat-guide),
.page-news #nf-stage:checked ~ .news-stream .entry:not(.cat-stage),
.page-news #nf-device:checked ~ .news-stream .entry:not(.cat-device),
.page-news #nf-service:checked ~ .news-stream .entry:not(.cat-service) {
  display: none;
}

.page-news .news-stream {
  position: relative;
  padding-left: var(--axis-gap);
}

.page-news .news-stream::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--cyan),
    rgba(30, 91, 255, 0.7) 34%,
    rgba(255, 138, 31, 0.55) 82%,
    rgba(18, 41, 74, 0)
  );
}

.page-news .entry {
  position: relative;
  padding-bottom: clamp(14px, 2vw, 20px);
}

.page-news .entry::before {
  content: "";
  position: absolute;
  top: 16px;
  left: calc(3px - var(--axis-gap));
  width: 10px;
  height: 10px;
  border: 2px solid var(--orange);
  background: var(--ink);
  transform: rotate(45deg);
  z-index: 1;
}

.page-news .entry.cat-archive::before {
  border-color: var(--magenta);
}

.page-news .entry.cat-version::before,
.page-news .entry.cat-guide::before {
  border-color: var(--cyan);
}

.page-news .entry-card {
  padding: clamp(14px, 2vw, 20px) clamp(14px, 2.2vw, 22px);
  border: 1px solid rgba(18, 41, 74, 0.95);
  border-left: 2px solid rgba(30, 91, 255, 0.55);
  background: linear-gradient(150deg, rgba(12, 20, 36, 0.92), rgba(7, 10, 18, 0.86));
  transition:
    border-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}

.page-news .entry:nth-child(3n + 2) .entry-card {
  margin-left: clamp(0px, 2vw, 26px);
}

.page-news .entry:nth-child(3n + 3) .entry-card {
  margin-left: clamp(0px, 1vw, 12px);
}

.page-news .entry:hover .entry-card,
.page-news .entry:focus-within .entry-card {
  border-color: rgba(0, 229, 255, 0.45);
  border-left-color: var(--cyan);
  transform: translateX(3px);
}

.page-news .entry-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .entry-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-bottom: 2px;
  border-bottom: 1px dashed rgba(0, 229, 255, 0.4);
}

.page-news .entry-title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.34;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .entry-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--slate);
}

.page-news .entry-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding-bottom: 2px;
  font-size: 13px;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 91, 255, 0.4);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

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

/* ---------- 档案读法 ---------- */
.page-news .archive-block {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 1px solid rgba(18, 41, 74, 0.9);
}

.page-news .archive-grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 46px);
}

.page-news .archive-figure {
  margin: 0;
  padding: 8px;
  background: var(--navy);
  border: 1px solid rgba(18, 41, 74, 0.95);
}

.page-news .archive-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-news .archive-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
}

.page-news .archive-text {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--slate);
}

.page-news .archive-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .archive-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 12px 14px;
  background: rgba(12, 20, 36, 0.6);
  border-left: 2px solid var(--cyan);
}

.page-news .archive-steps .num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .archive-steps h3 {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .archive-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--slate);
}

.page-news .archive-fold {
  margin-top: 18px;
  border: 1px solid rgba(18, 41, 74, 0.95);
  background: rgba(9, 14, 26, 0.72);
}

.page-news .archive-fold summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--fog);
  cursor: pointer;
  list-style: none;
}

.page-news .archive-fold summary::-webkit-details-marker {
  display: none;
}

.page-news .archive-fold summary::before {
  content: "＋";
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-news .archive-fold[open] summary::before {
  content: "－";
}

.page-news .archive-fold summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .archive-fold ul {
  margin: 0;
  padding: 0 16px 16px 34px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 资料库使用场景 ---------- */
.page-news .library-block {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 1px solid rgba(18, 41, 74, 0.9);
}

.page-news .library-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--slate);
}

.page-news .library-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .library-figure {
  margin: 0;
  padding: 8px;
  background: rgba(12, 20, 36, 0.82);
  border: 1px solid rgba(30, 91, 255, 0.35);
}

.page-news .library-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-news .library-cards {
  display: grid;
  gap: 14px;
}

.page-news .library-card {
  padding: 16px 18px;
  background: rgba(12, 20, 36, 0.66);
  border: 1px solid rgba(18, 41, 74, 0.95);
  border-top: 2px solid var(--blue);
  transition: border-top-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-news .library-card:hover {
  border-top-color: var(--cyan);
  background: rgba(18, 41, 74, 0.45);
}

.page-news .library-role {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-news .library-card h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-news .library-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 阶段观察 ---------- */
.page-news .stage-block {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 1px solid rgba(18, 41, 74, 0.9);
}

.page-news .stage-grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-news .stage-item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(18, 41, 74, 0.85);
}

.page-news .stage-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .stage-item h3 {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .stage-item .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
  border: 1px solid rgba(255, 138, 31, 0.45);
  padding: 2px 7px;
}

.page-news .stage-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .stage-figure {
  margin: 0;
  padding: 8px;
  background: rgba(12, 20, 36, 0.82);
  border: 1px solid rgba(18, 41, 74, 0.95);
  align-self: start;
}

.page-news .stage-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-news .stage-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 反馈提示 ---------- */
.page-news .reach-block {
  padding: clamp(32px, 5vw, 60px) 0 clamp(48px, 7vw, 90px);
  border-top: 1px solid rgba(18, 41, 74, 0.9);
}

.page-news .reach-inner {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  padding: clamp(20px, 3vw, 34px);
  background: linear-gradient(135deg, rgba(30, 91, 255, 0.16), rgba(7, 10, 18, 0.92) 58%);
  border: 1px solid rgba(30, 91, 255, 0.4);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), 0 100%);
}

.page-news .reach-copy p {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

.page-news .reach-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-news .reach-back {
  font-size: 13.5px;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px dashed rgba(143, 163, 191, 0.5);
  padding-bottom: 2px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .reach-back:hover,
.page-news .reach-back:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 760px) {
  .page-news .news-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .entry-card {
    max-width: 78ch;
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

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

  .page-news .archive-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-news .library-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .stage-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-news .reach-inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
  }

  .page-news .reach-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-news .news-stream {
    --axis-gap: 44px;
  }

  .page-news .entry-card {
    max-width: 74ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-news .entry:hover .entry-card,
  .page-news .entry:focus-within .entry-card,
  .page-news .filter-tab:hover {
    transform: none;
  }
}