.page-news {
  background: var(--paper);
  color: var(--text);
  --pn-accent-reel: var(--flare);
  --pn-accent-ver: var(--amber);
  --pn-accent-data: var(--ink-800);
  --pn-accent-lib: var(--muted);
  --pn-accent-series: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-news .pn-hero {
  padding: calc(var(--header-h) + 48px) 0 40px;
}

.page-news .breadcrumb {
  margin-bottom: 28px;
  font-size: var(--t12);
  letter-spacing: .06em;
}

.page-news .pn-hero__grid {
  align-items: end;
  row-gap: 32px;
}

.page-news .pn-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 10px 0 0;
  max-width: 18ch;
}

.page-news .pn-hero__lede {
  margin-top: 20px;
  max-width: 60ch;
  font-size: var(--t16);
  line-height: 1.78;
  color: var(--muted);
}

.page-news .pn-brief {
  margin-top: 12px;
  background: var(--ink-900);
  border-left: 3px solid var(--cyan);
  padding: 20px 22px;
  display: grid;
  gap: 0;
}

.page-news .pn-brief__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--hair-dark);
}

.page-news .pn-brief__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .pn-brief__row:first-child {
  padding-top: 0;
}

.page-news .pn-brief__k {
  font-size: var(--t12);
  letter-spacing: .1em;
  color: var(--paper-52);
}

.page-news .pn-brief__v {
  font-family: var(--font-mono);
  font-size: var(--t16);
  letter-spacing: .04em;
  color: var(--cyan);
}

/* ---------- 粘性栏目条 ---------- */
.page-news .pn-filters {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  background: var(--mist);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--line);
}

.page-news .pn-filters__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .pn-filters__inner::-webkit-scrollbar {
  display: none;
}

.page-news .pn-filters__label {
  flex: none;
  font-size: var(--t12);
  letter-spacing: .16em;
  color: var(--muted);
}

.page-news .pn-filters__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .pn-tab {
  display: inline-block;
  white-space: nowrap;
  padding: 8px 14px;
  background: var(--paper);
  color: var(--text);
  border: 1px solid var(--hair-strong);
  border-bottom: 3px solid var(--pn-dot, var(--line));
  font-size: var(--t14);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .pn-tab:hover,
.page-news .pn-tab:focus-visible {
  background: var(--ink-900);
  color: var(--paper);
}

.page-news .pn-tab--reel { --pn-dot: var(--flare); }
.page-news .pn-tab--ver { --pn-dot: var(--amber); }
.page-news .pn-tab--data { --pn-dot: var(--ink-800); }
.page-news .pn-tab--lib { --pn-dot: var(--muted); }
.page-news .pn-tab--series { --pn-dot: var(--cyan); }

/* ---------- 通用 ---------- */
.page-news h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 5.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 6px 0 0;
  color: var(--text);
}

.page-news h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--t20);
  line-height: 1.32;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--text);
}

.page-news .section__head {
  margin-bottom: 28px;
  padding-top: 18px;
  border-top: 3px solid var(--pn-accent, var(--line));
}

.page-news .pn-sec--reel { --pn-accent: var(--pn-accent-reel); }
.page-news .pn-sec--ver { --pn-accent: var(--pn-accent-ver); }
.page-news .pn-sec--data { --pn-accent: var(--pn-accent-data); }
.page-news .pn-sec--lib { --pn-accent: var(--pn-accent-lib); }
.page-news .pn-sec--series .section__head {
  --pn-accent: var(--pn-accent-series);
  border-top-color: var(--cyan);
}
.page-news .pn-sec--series h2 { color: var(--paper); }
.page-news .pn-sec--series .lede { color: var(--paper-72); }
.page-news .pn-sec--series .sec-num { color: var(--cyan); }

.page-news .pn-figure {
  margin: 0 0 28px;
}

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

.page-news a {
  color: var(--ink-800);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-news .pn-sec--series a {
  color: var(--cyan);
}

/* ---------- 连看清单 ---------- */
.page-news .pn-reel {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-news .pn-reel__item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "idx body"
    "stats stats";
  gap: 14px 18px;
  padding: 26px 0 26px 14px;
  border-bottom: 1px solid var(--hair);
  border-left: 3px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .pn-reel__item:hover {
  border-left-color: var(--pn-accent-reel);
  background: var(--mist);
}

.page-news .pn-reel__idx {
  grid-area: idx;
  font-family: var(--font-serif);
  font-size: clamp(38px, 10vw, 54px);
  line-height: .86;
  font-variant-numeric: tabular-nums;
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  padding-top: 2px;
}

.page-news .pn-reel__body {
  grid-area: body;
}

.page-news .pn-reel__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: var(--t12);
  letter-spacing: .06em;
  color: var(--muted);
}

.page-news .pn-reel__desc {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: var(--t16);
  line-height: 1.75;
  color: var(--muted);
}

.page-news .pn-reel__stats {
  grid-area: stats;
  display: flex;
  gap: 26px;
  margin: 4px 0 0;
}

.page-news .pn-reel__stats dt {
  font-size: var(--t12);
  letter-spacing: .1em;
  color: var(--muted);
}

.page-news .pn-reel__stats dd {
  margin: 3px 0 0;
  font-family: var(--font-mono);
  font-size: var(--t20);
  letter-spacing: .04em;
  color: var(--ink-800);
}

.page-news .pn-reel__foot {
  margin: 26px 0 0;
  max-width: 66ch;
  font-size: var(--t14);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 版本动态 ---------- */
.page-news .pn-ver {
  row-gap: 28px;
}

.page-news .pn-ver__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair-strong);
}

.page-news .pn-ver__item {
  padding: 20px 0;
  border-bottom: 1px solid var(--hair-strong);
}

.page-news .pn-ver__tag {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 9px;
  background: var(--amber);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: var(--t12);
  letter-spacing: .04em;
}

.page-news .pn-ver__item p:not(.pn-ver__tag) {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: var(--t16);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 数据观察 ---------- */
.page-news .pn-data__grid {
  row-gap: 28px;
}

.page-news .pn-data {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair-strong);
}

.page-news .pn-data__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px 18px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--hair-strong);
}

.page-news .pn-data__txt p {
  margin: 8px 0 0;
  max-width: 56ch;
  font-size: var(--t14);
  line-height: 1.72;
  color: var(--muted);
}

.page-news .pn-spark {
  display: block;
  margin-top: 12px;
  max-width: 100%;
}

.page-news .pn-data__metric {
  min-width: 84px;
  padding: 10px 12px;
  background: var(--ink-800);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: var(--t16);
  letter-spacing: .04em;
  text-align: center;
  line-height: 1.2;
}

.page-news .pn-data__metric span {
  display: block;
  margin-top: 2px;
  font-size: var(--t12);
  color: var(--paper-52);
  letter-spacing: .06em;
}

/* ---------- 资料库更新 ---------- */
.page-news .pn-lib {
  border-top: 1px solid var(--hair-strong);
}

.page-news .pn-lib__item {
  border-bottom: 1px solid var(--hair-strong);
}

.page-news .pn-lib__item summary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 30px 18px 0;
  position: relative;
  cursor: pointer;
  list-style: none;
}

.page-news .pn-lib__item summary::-webkit-details-marker {
  display: none;
}

.page-news .pn-lib__item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: var(--t20);
  color: var(--ink-800);
  line-height: 1;
}

.page-news .pn-lib__item[open] summary::after {
  content: "–";
  color: var(--flare);
}

.page-news .pn-lib__ver {
  font-size: var(--t12);
  letter-spacing: .06em;
  color: var(--ink-800);
}

.page-news .pn-lib__cat {
  font-size: var(--t12);
  letter-spacing: .14em;
  color: var(--muted);
}

.page-news .pn-lib__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--t16);
  line-height: 1.4;
  color: var(--text);
}

.page-news .pn-lib__item p {
  margin: 0 0 20px;
  max-width: 64ch;
  font-size: var(--t14);
  line-height: 1.76;
  color: var(--muted);
}

.page-news .pn-lib__foot {
  margin: 24px 0 0;
  max-width: 66ch;
  font-size: var(--t14);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 专题系列 ---------- */
.page-news .pn-figure--dark .img-frame__code {
  color: var(--cyan);
}

.page-news .pn-series {
  display: grid;
  gap: 16px;
}

.page-news .pn-series__card {
  background: var(--ink-800);
  border-top: 3px solid var(--pn-accent-series);
  padding: 24px 22px 26px;
}

.page-news .pn-series__freq {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--t12);
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-news .pn-series__card h3 {
  color: var(--paper);
}

.page-news .pn-series__card p:not(.pn-series__freq) {
  margin: 12px 0 0;
  font-size: var(--t14);
  line-height: 1.76;
  color: var(--paper-72);
}

/* ---------- 投稿提示 ---------- */
.page-news .pn-note {
  display: grid;
  gap: 28px;
  padding: 26px 22px 28px;
  background: var(--mist);
  border-left: 3px solid var(--flare);
}

.page-news .pn-note__main p {
  margin: 14px 0 22px;
  max-width: 58ch;
  font-size: var(--t16);
  line-height: 1.78;
  color: var(--muted);
}

.page-news .pn-note__links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair-strong);
}

.page-news .pn-note__links li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hair-strong);
}

.page-news .pn-note__links a {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--t16);
  color: var(--ink-800);
}

.page-news .pn-note__links span {
  font-size: var(--t14);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 断点 ---------- */
@media (min-width: 768px) {
  .page-news .pn-hero {
    padding: calc(var(--header-h) + 64px) 0 52px;
  }

  .page-news .pn-brief {
    margin-top: 0;
    padding: 24px 26px;
  }

  .page-news .pn-reel__item {
    grid-template-columns: 96px minmax(0, 1fr) 170px;
    grid-template-areas: "idx .page-news stats";
    gap: 20px 26px;
    align-items: start;
    padding: 30px 18px;
  }

  .page-news .pn-reel__stats {
    margin-top: 2px;
    flex-direction: column;
    gap: 14px;
  }

  .page-news .pn-lib__item summary {
    grid-template-columns: 132px 100px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }

  .page-news .pn-lib__ver,
  .page-news .pn-lib__cat {
    padding-top: 2px;
  }

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

  .page-news .pn-note {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    padding: 32px 30px 34px;
  }

  .page-news .pn-data__item {
    gap: 16px 26px;
  }
}

@media (min-width: 1080px) {
  .page-news .pn-reel__item {
    padding: 34px 22px;
  }

  .page-news .pn-filters__inner {
    gap: 22px;
  }

  .page-news .pn-series__card {
    padding: 28px 26px 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-tab,
  .page-news .pn-reel__item {
    transition: none;
  }
}