/* =====================================================
   档案专栏 /articles/ —— page-news
   ===================================================== */

.page-news {
  --nb-line: rgba(159, 176, 191, 0.18);
  --nb-line-strong: rgba(159, 176, 191, 0.34);
  --nb-dark-line: rgba(7, 15, 26, 0.16);
  --nb-ink-text: #2A4056;
  --nb-ink-muted: #4A5F72;
  --nb-ink-accent: #8A6C1F;

  background-color: var(--wb-ink-950);
  color: var(--wb-paper-100);
  overflow-x: clip;
}

/* ---------- 通用小件 ---------- */

.page-news .nb-eyebrow {
  margin: 0;
  font-family: var(--wb-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--wb-slate-300);
}

.page-news .nb-eyebrow--dark {
  color: var(--nb-ink-muted);
}

.page-news .nb-sec__title {
  margin: 0.7rem 0 0;
  font-size: clamp(1.45rem, 3.6vw, 2.15rem);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--wb-white);
}

.page-news .nb-sec__lead {
  margin: 0.9rem 0 0;
  max-width: 60ch;
  font-size: var(--wb-fs-body);
  line-height: 1.75;
  color: var(--wb-slate-300);
}

.page-news .nb-inline-link {
  color: var(--wb-gold-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 74, 0.5);
  padding-bottom: 0.06em;
  transition: color 120ms var(--wb-ease), border-color 120ms var(--wb-ease);
}

.page-news .nb-inline-link:hover {
  color: var(--wb-gold-200);
  border-bottom-color: var(--wb-gold-200);
}

.page-news .nb-fig {
  margin: 0;
  border: 1px solid var(--nb-line);
  background-color: var(--wb-ink-800);
}

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

.page-news .nb-fig__cap {
  padding: 0.72rem 0.9rem 0.8rem;
  border-top: 1px solid var(--nb-line);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--wb-muted);
}

/* ---------- 首屏 ---------- */

.page-news .nb-hero {
  position: relative;
  padding-block: clamp(1.75rem, 5vw, 3.25rem) clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--nb-line);
}

.page-news .nb-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: clamp(72px, 12vw, 132px);
  height: 2px;
  background-color: var(--wb-gold-500);
}

.page-news .nb-hero__title {
  margin: 0.85rem 0 0;
  max-width: 16ch;
  font-size: clamp(2rem, 7.4vw, 4.4rem);
  line-height: 1.07;
  font-weight: 800;
  letter-spacing: -0.028em;
  color: var(--wb-white);
}

.page-news .nb-hero__lead {
  margin: 1.3rem 0 0;
  max-width: 58ch;
  font-size: var(--wb-fs-body);
  line-height: 1.78;
  color: var(--wb-slate-300);
}

.page-news .nb-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.75rem, 4.5vw, 2.75rem) 0 0;
  padding: 0;
  list-style: none;
  background-color: var(--nb-line);
  border: 1px solid var(--nb-line);
}

.page-news .nb-stats > li {
  background-color: var(--wb-ink-950);
  padding: 0.95rem 1rem 1.05rem;
}

.page-news .nb-stat__num {
  display: block;
  font-family: var(--wb-font-mono);
  font-size: clamp(1.5rem, 4.6vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--wb-white);
}

.page-news .nb-stat__num--word {
  font-size: clamp(1.25rem, 3.4vw, 1.7rem);
  letter-spacing: 0.02em;
  color: var(--wb-gold-500);
}

.page-news .nb-stat__label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
  color: var(--wb-muted);
}

/* ---------- 分类索引 ---------- */

.page-news .nb-cats {
  padding-block: clamp(2.25rem, 6vw, 4rem);
}

.page-news .nb-cats__fig img {
  height: clamp(132px, 26vw, 288px);
}

.page-news .nb-cat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  list-style: none;
  background-color: var(--nb-line);
  border: 1px solid var(--nb-line);
}

.page-news .nb-cat {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-height: 106px;
  padding: 1rem 1rem 1.1rem;
  background-color: var(--wb-ink-800);
  border-left: 3px solid var(--nb-line-strong);
  transition: background-color 140ms var(--wb-ease), border-left-color 140ms var(--wb-ease);
}

.page-news .nb-cat:hover {
  background-color: var(--wb-ink-600);
}

.page-news .nb-cat--violet { border-left-color: var(--wb-violet-500); }
.page-news .nb-cat--gold    { border-left-color: var(--wb-gold-500); }
.page-news .nb-cat--cyan    { border-left-color: var(--wb-cyan-400); }
.page-news .nb-cat--jade    { border-left-color: var(--wb-jade-500); }
.page-news .nb-cat--slate   { border-left-color: var(--nb-line-strong); }

.page-news .nb-cat--violet:hover { border-left-color: var(--wb-violet-500); }
.page-news .nb-cat--gold:hover   { border-left-color: var(--wb-gold-500); }
.page-news .nb-cat--cyan:hover   { border-left-color: var(--wb-cyan-400); }
.page-news .nb-cat--jade:hover   { border-left-color: var(--wb-jade-500); }
.page-news .nb-cat--slate:hover  { border-left-color: var(--wb-gold-500); }

.page-news .nb-cat__name {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--wb-white);
}

.page-news .nb-cat__count {
  margin-top: auto;
  font-family: var(--wb-font-mono);
  font-size: clamp(1.3rem, 3.6vw, 1.85rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--wb-paper-100);
}

.page-news .nb-cat__count small {
  margin-left: 0.3em;
  font-family: var(--wb-font-cn);
  font-size: 0.5em;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--wb-muted);
}

.page-news .nb-cat--wide {
  grid-column: span 2;
}

/* ---------- 置顶连载 ---------- */

.page-news .nb-series {
  background-color: var(--wb-ink-800);
  border-top: 1px solid var(--nb-line);
  border-bottom: 1px solid var(--nb-line);
  padding-block: clamp(2.25rem, 6vw, 3.75rem);
}

.page-news .nb-series__inner {
  display: grid;
  gap: 1.6rem;
}

.page-news .nb-series__idx {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--nb-line);
}

.page-news .nb-series__idx-label {
  font-family: var(--wb-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--wb-slate-300);
}

.page-news .nb-series__idx-num {
  font-family: var(--wb-font-mono);
  font-size: clamp(2.75rem, 9vw, 4.5rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--wb-gold-500);
}

.page-news .nb-series__idx-unit {
  font-size: 0.9375rem;
  color: var(--wb-slate-300);
}

.page-news .nb-series__title {
  margin: 0.7rem 0 0;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  line-height: 1.24;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--wb-white);
}

.page-news .nb-series__points {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.page-news .nb-series__points li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 0.5rem;
  font-size: var(--wb-fs-body);
  line-height: 1.72;
  color: var(--wb-slate-300);
}

.page-news .nb-series__pt-no {
  font-family: var(--wb-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--wb-gold-500);
  padding-top: 0.35em;
}

.page-news .nb-series__body .nb-inline-link {
  display: inline-block;
  margin-top: 1.4rem;
  font-size: 0.9375rem;
  font-weight: 600;
}

.page-news .nb-series__fig img {
  height: clamp(160px, 34vw, 260px);
}

/* ---------- 最新条目 ---------- */

.page-news .nb-latest {
  padding-block: clamp(2.25rem, 6vw, 4rem);
}

.page-news .nb-latest__fig {
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-news .nb-latest__fig img {
  height: clamp(96px, 16vw, 150px);
  opacity: 0.72;
}

.page-news .nb-list {
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  border-top: 1px solid var(--nb-line);
}

.page-news .nb-item {
  padding: 1.05rem 0 1.15rem 1rem;
  border-bottom: 1px solid var(--nb-line);
  border-left: 3px solid var(--nb-line-strong);
  transition: background-color 140ms var(--wb-ease), border-left-color 140ms var(--wb-ease);
}

.page-news .nb-item:hover {
  background-color: rgba(28, 58, 85, 0.32);
}

.page-news .nb-item--violet { border-left-color: var(--wb-violet-500); }
.page-news .nb-item--cyan   { border-left-color: var(--wb-cyan-400); }
.page-news .nb-item--jade   { border-left-color: var(--wb-jade-500); }
.page-news .nb-item--gold   { border-left-color: var(--wb-gold-500); }
.page-news .nb-item--slate  { border-left-color: var(--nb-line-strong); }

.page-news .nb-item__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.page-news .nb-item__tag {
  font-family: var(--wb-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--wb-slate-300);
}

.page-news .nb-item__time {
  flex: none;
  font-family: var(--wb-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--wb-muted);
}

.page-news .nb-item__title {
  margin: 0.55rem 0 0;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--wb-white);
}

.page-news .nb-item__desc {
  margin: 0.5rem 0 0;
  max-width: 66ch;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--wb-slate-300);
}

.page-news .nb-latest__cta {
  margin: clamp(1.5rem, 4vw, 2rem) 0 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--wb-muted);
}

/* ---------- 阅读路径（浅色段） ---------- */

.page-news .nb-paths {
  background-color: var(--wb-paper-100);
  color: var(--wb-ink-950);
  padding-block: clamp(2.5rem, 6.5vw, 4.25rem);
}

.page-news .nb-paths .nb-sec__title,
.page-news .nb-paths__title {
  color: var(--wb-ink-950);
}

.page-news .nb-paths .nb-sec__lead {
  color: var(--nb-ink-muted);
}

.page-news .nb-paths__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  background-color: var(--nb-dark-line);
  border: 1px solid var(--nb-dark-line);
}

.page-news .nb-path {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.35rem 1.2rem 1.5rem;
  background-color: var(--wb-paper-100);
}

.page-news .nb-path__no {
  margin: 0;
  font-family: var(--wb-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--wb-gold-500);
}

.page-news .nb-path__title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--wb-ink-950);
}

.page-news .nb-path__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: nbp;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-news .nb-path__list li {
  position: relative;
  padding-left: 1.9rem;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--nb-ink-text);
}

.page-news .nb-path__list li::before {
  counter-increment: nbp;
  content: counter(nbp, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.18em;
  font-family: var(--wb-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--nb-ink-accent);
}

.page-news .nb-path__link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 0.1rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--wb-ink-950);
  text-decoration: none;
  border-bottom: 2px solid var(--wb-gold-500);
  transition: color 120ms var(--wb-ease), border-color 120ms var(--wb-ease);
}

.page-news .nb-path__link:hover {
  color: var(--nb-ink-accent);
  border-bottom-color: var(--nb-ink-accent);
}

/* ---------- 归档浏览 ---------- */

.page-news .nb-archive {
  padding-block: clamp(2.5rem, 6.5vw, 4.25rem);
}

.page-news .nb-archive__inner {
  display: grid;
  gap: clamp(1.75rem, 4.5vw, 2.75rem);
}

.page-news .nb-archive__col {
  min-width: 0;
}

.page-news .nb-years {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.5rem, 4vw, 2rem) 0 0;
  padding: 0;
  list-style: none;
  background-color: var(--nb-line);
  border: 1px solid var(--nb-line);
}

.page-news .nb-year {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.85rem 1rem 0.95rem;
  background-color: var(--wb-ink-800);
  transition: background-color 140ms var(--wb-ease);
}

.page-news .nb-year:hover {
  background-color: var(--wb-ink-600);
}

.page-news .nb-year__y {
  font-family: var(--wb-font-mono);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--wb-white);
}

.page-news .nb-year__n {
  font-size: 0.8125rem;
  color: var(--wb-muted);
}

.page-news .nb-archive__note {
  margin: clamp(1.5rem, 4vw, 2rem) 0 0;
  max-width: 54ch;
  padding: 0.9rem 0 0.9rem 1rem;
  border-left: 3px solid var(--wb-gold-500);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--wb-slate-300);
}

.page-news .nb-archive__fig {
  min-width: 0;
}

.page-news .nb-archive__fig img {
  height: clamp(170px, 38vw, 300px);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-news .nb-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 768px) {
  .page-news .nb-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    padding: 1.2rem 1.25rem 1.3rem 1.25rem;
  }

  .page-news .nb-list {
    border-top: 0;
  }

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

@media (min-width: 960px) {
  .page-news .nb-cat-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .nb-cat--wide-lg {
    grid-column: span 2;
  }

  .page-news .nb-series__inner {
    grid-template-columns: 168px minmax(0, 1fr) minmax(0, 330px);
    gap: 2.75rem;
    align-items: start;
  }

  .page-news .nb-series__idx {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-news .nb-archive__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
    gap: 3.25rem;
    align-items: start;
  }

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

@media (min-width: 1200px) {
  .page-news .nb-hero__title {
    max-width: 14ch;
  }

  .page-news .nb-item {
    grid-template-columns: 2.25rem minmax(0, 1fr);
    align-items: start;
  }

  .page-news .nb-item__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    justify-content: flex-start;
  }

  .page-news .nb-item__title {
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .nb-cat,
  .page-news .nb-item,
  .page-news .nb-year,
  .page-news .nb-inline-link,
  .page-news .nb-path__link {
    transition: none;
  }
}