.page-news {
  --n-rail: 56px;
  --n-pf01: #35E0C0;
  --n-pf02: #4FB3FF;
  --n-pf03: #F2B27A;
  --n-pf04: #8E6BFF;
  --c-ver: #35E0C0;
  --c-code: #F2B27A;
  --c-zone: #4FB3FF;
  --c-train: #8E6BFF;
  --c-method: #7C8F9A;
}

@media (min-width: 720px) {
  .page-news {
    --n-rail: 78px;
  }
}

/* ---------- 首屏 ---------- */
.page-news .news-cover {
  position: relative;
  overflow: hidden;
  background: var(--steel-deep);
  color: var(--paper-warm);
  padding: clamp(20px, 4vw, 38px) 0 clamp(38px, 6vw, 76px);
}

.page-news .news-cover::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -8%;
  width: min(460px, 64vw);
  aspect-ratio: 1 / 1;
  background: var(--steel-mid);
  opacity: .55;
  clip-path: polygon(22% 0, 100% 0, 100% 76%, 0 100%);
  pointer-events: none;
}

.page-news .news-cover > .container {
  position: relative;
  z-index: 1;
}

.page-news .news-cover__crumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted-steel);
}

.page-news .news-cover__crumbs a {
  color: var(--muted-steel);
  text-decoration: none;
  transition: color .16s var(--ease);
}

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

.page-news .news-cover__grid {
  display: grid;
  gap: clamp(26px, 4.5vw, 44px);
  margin-top: clamp(22px, 4vw, 42px);
}

.page-news .news-cover__title {
  margin: .18em 0 .34em;
  font-size: clamp(2.6rem, 10vw, 4.4rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--paper-warm);
}

.page-news .news-cover__lede {
  max-width: 54ch;
  margin: 0 0 clamp(22px, 3.4vw, 32px);
  color: rgba(244, 241, 234, .84);
}

.page-news .news-cover__figs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px clamp(20px, 4vw, 44px);
  margin: 0 0 clamp(22px, 3.2vw, 30px);
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
}

.page-news .news-cover__fig {
  min-width: 88px;
}

.page-news .news-cover__fig dt {
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted-steel);
}

.page-news .news-cover__fig dd {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: .02em;
  color: var(--sand-soft);
}

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

.page-news .news-jump__link {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(244, 241, 234, .78);
  text-decoration: none;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

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

.page-news .news-cover__plate {
  margin: 0;
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
  background: var(--steel-mid);
}

.page-news .news-cover__plate img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(.82) brightness(.94);
}

@media (min-width: 900px) {
  .page-news .news-cover__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gap);
    align-items: start;
  }

  .page-news .news-cover__lead {
    grid-column: 1 / span 6;
  }

  .page-news .news-cover__plate {
    grid-column: 8 / span 5;
    margin-top: clamp(10px, 2vw, 28px);
  }
}

/* ---------- 分类标签带 ---------- */
.page-news .news-taxonomy {
  background: var(--steel-mid);
  color: var(--paper-warm);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(20px, 3.4vw, 32px) 0;
}

.page-news .news-taxonomy__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-taxonomy__cell {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px;
  background: var(--steel-mid);
  border-radius: 2px;
}

.page-news .news-taxonomy__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 241, 234, .74);
}

@media (min-width: 640px) {
  .page-news .news-taxonomy__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-news .news-taxonomy__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* ---------- 分类标签 ---------- */
.page-news .cat {
  display: inline-block;
  align-self: flex-start;
  padding: 2px 8px;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .08em;
  white-space: nowrap;
}

.page-news .cat--ver { color: var(--c-ver); }
.page-news .cat--code { color: var(--c-code); }
.page-news .cat--zone { color: var(--c-zone); }
.page-news .cat--train { color: var(--c-train); }
.page-news .cat--method { color: var(--c-method); }

/* ---------- 栏头 ---------- */
.page-news .news-head {
  margin-bottom: clamp(22px, 3.4vw, 34px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-head__idx {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan-signal);
}

.page-news .news-head__title {
  margin: 0;
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper-warm);
}

.page-news .news-head__note {
  margin: 8px 0 0;
  font-size: 12px;
  letter-spacing: .07em;
  color: var(--muted-steel);
}

/* ---------- 本期专题 ---------- */
.page-news .news-index {
  background: var(--steel-deep);
  color: var(--paper-warm);
  padding: clamp(36px, 6vw, 76px) 0;
}

.page-news .news-stream {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-news .news-stream::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: var(--n-rail);
  width: 1px;
  transform: translateX(-.5px);
  background: var(--line-strong);
}

.page-news .issue {
  position: relative;
  display: grid;
  grid-template-columns: var(--n-rail) minmax(0, 1fr);
  column-gap: clamp(12px, 2.6vw, 28px);
}

.page-news .issue__rail {
  padding-top: 2px;
  text-align: left;
}

.page-news .issue__no {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--sand-soft);
}

.page-news .issue__node {
  position: absolute;
  left: var(--n-rail);
  top: 13px;
  width: 9px;
  height: 9px;
  transform: translateX(-50%) rotate(45deg);
  background: var(--steel-deep);
  border: 1px solid var(--cyan-signal);
  transition: background .16s var(--ease), border-color .16s var(--ease);
}

.page-news .issue:hover .issue__node {
  background: var(--sand-orange);
  border-color: var(--sand-orange);
}

.page-news .issue__body {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  transition: border-color .16s var(--ease);
}

.page-news .issue:hover .issue__body {
  border-top-color: var(--line-strong);
}

.page-news .issue__inner {
  display: grid;
  gap: 18px;
}

.page-news .issue__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 10px;
}

.page-news .issue__series {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--muted-steel);
}

.page-news .issue__q {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan-dim);
}

.page-news .issue__title {
  margin: 0 0 10px;
  font-size: clamp(1.1rem, 2.6vw, 1.35rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper-warm);
}

.page-news .issue__sum {
  margin: 0 0 8px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 241, 234, .76);
}

.page-news .issue__more {
  margin-top: 12px;
}

.page-news .issue__more summary {
  display: inline-block;
  padding: 4px 0;
  border-bottom: 1px dashed rgba(53, 224, 192, .42);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan-signal);
  cursor: pointer;
  list-style: none;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

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

.page-news .issue__more summary:hover,
.page-news .issue__more summary:focus-visible {
  color: var(--sand-soft);
  border-bottom-color: rgba(242, 178, 122, .5);
}

.page-news .issue__more[open] summary {
  color: var(--sand-orange);
  border-bottom-color: rgba(228, 118, 43, .5);
}

.page-news .issue__more p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 241, 234, .68);
}

.page-news .issue__thumb {
  margin: 0;
  background: var(--steel-mid);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-news .issue__thumb img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.82) brightness(.94);
}

.page-news .issue__thumb--square img {
  aspect-ratio: 1 / 1;
}

@media (min-width: 880px) {
  .page-news .issue--media .issue__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 288px);
    gap: var(--gap);
    align-items: start;
  }
}

/* ---------- 往季归档 ---------- */
.page-news .news-archive {
  --c-ver: #1FA48F;
  --c-code: #E4762B;
  --c-zone: #17475E;
  --c-train: #8E6BFF;
  --c-method: #7C8F9A;
  background: var(--paper-warm);
  color: var(--ink-text);
  padding: clamp(36px, 6vw, 76px) 0;
}

.page-news .news-archive .news-head {
  border-bottom-color: var(--line-dark);
}

.page-news .news-archive .news-head__idx {
  color: var(--cyan-dim);
}

.page-news .news-archive .news-head__title {
  color: var(--ink-text);
}

.page-news .news-archive .news-head__note {
  color: var(--muted-steel);
}

.page-news .archive {
  display: grid;
  gap: clamp(24px, 3.6vw, 38px);
}

.page-news .archive__term {
  padding-top: 12px;
  border-top: 2px solid var(--ink-text);
}

.page-news .archive__term-name {
  margin: 0 0 12px;
  font-size: 1.05rem;
  letter-spacing: .06em;
  color: var(--ink-text);
}

.page-news .archive__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .archive__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 14px;
  line-height: 1.65;
}

.page-news .archive__no {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted-steel);
}

.page-news .archive__title {
  color: var(--ink-text);
}

.page-news .archive__tag {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

@media (min-width: 520px) {
  .page-news .archive__row {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .page-news .archive__tag {
    grid-column: 3;
    align-self: center;
  }
}

@media (min-width: 900px) {
  .page-news .archive {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 编号与阅读口径 ---------- */
.page-news .news-rules {
  background: var(--steel-mid);
  color: var(--paper-warm);
  padding: clamp(36px, 6vw, 76px) 0;
}

.page-news .rules {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .rule {
  display: grid;
  gap: 8px;
  padding: clamp(18px, 3vw, 26px);
  background: var(--steel-mid);
}

.page-news .rule__no {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan-signal);
}

.page-news .rule__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper-warm);
}

.page-news .rule__text {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 241, 234, .74);
}

.page-news .rule__text a {
  color: var(--sand-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 178, 122, .5);
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-news .rule__text a:hover,
.page-news .rule__text a:focus-visible {
  color: var(--cyan-signal);
  border-bottom-color: rgba(53, 224, 192, .55);
}

@media (min-width: 860px) {
  .page-news .rules {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 追溯入口 ---------- */
.page-news .news-followup {
  background: var(--slate-ink);
  color: var(--paper-warm);
  padding: clamp(34px, 5.5vw, 68px) 0;
}

.page-news .callout {
  max-width: 760px;
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--sand-orange);
  border-radius: 2px;
  background: var(--steel-deep);
}

.page-news .callout__idx {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan-signal);
}

.page-news .callout__title {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--paper-warm);
}

.page-news .callout__text {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 234, .78);
}

.page-news .callout__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-jump__link,
  .page-news .issue__node,
  .page-news .issue__body,
  .page-news .issue__more summary,
  .page-news .news-cover__crumbs a,
  .page-news .rule__text a {
    transition: none;
  }
}