.page-news {
  --news-rail-w: 250px;
  --news-gap: clamp(32px, 5vw, 64px);
  position: relative;
  overflow-x: clip;
  padding-block: clamp(20px, 4vw, 44px) clamp(52px, 8vw, 112px);
  background:
    radial-gradient(90% 60% at 78% 4%, rgba(123, 59, 255, .28), transparent 62%),
    linear-gradient(180deg, var(--indigo) 0%, var(--void) 46%, var(--indigo) 100%);
}

.page-news .breadcrumb {
  margin-bottom: clamp(16px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-news .news-poster {
  position: relative;
  isolation: isolate;
  padding-block: clamp(10px, 2vw, 22px) clamp(30px, 5vw, 58px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-poster::after {
  content: "";
  position: absolute;
  top: 18%;
  right: -14%;
  width: 58%;
  height: 130px;
  background: linear-gradient(90deg, transparent, rgba(34, 224, 255, .22) 46%, transparent);
  filter: blur(30px);
  z-index: -1;
  pointer-events: none;
}

.page-news .news-poster .poster__kicker {
  margin: 0 0 clamp(12px, 2vw, 20px);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .news-poster .poster__title {
  margin: 0;
  font-family: var(--font-poster);
  font-weight: 900;
  font-size: clamp(40px, 10vw, 108px);
  line-height: .94;
  letter-spacing: -.02em;
  color: var(--offwhite);
  text-shadow: 0 0 26px rgba(123, 59, 255, .55);
}

.page-news .news-poster .poster__title em {
  display: block;
  font-style: normal;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

.page-news .news-poster .poster__lead {
  max-width: 62ch;
  margin: clamp(18px, 3vw, 30px) 0 0;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--offwhite);
}

.page-news .news-poster__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(16px, 3vw, 34px);
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--mist);
}

.page-news .news-poster__stats li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: rgba(26, 16, 53, .6);
}

.page-news .news-poster__stats .mono {
  font-size: 18px;
  color: var(--cyan);
}

.page-news .news-poster__band {
  display: block;
  margin-top: clamp(24px, 4vw, 42px);
  height: 3px;
  width: min(520px, 70%);
  background: linear-gradient(90deg, var(--magenta), var(--cyan) 55%, transparent);
  transform: skewX(-24deg);
  animation: news-band 7s ease-in-out infinite;
}

@keyframes news-band {
  0%, 100% { opacity: .72; }
  50% { opacity: 1; }
}

/* ---------- 栏目标签导航 ---------- */
.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .news-filter {
  padding: 7px 14px;
  border: 1px solid var(--line);
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-news .news-filter:hover,
.page-news .news-filter:focus-visible {
  color: var(--void);
  background: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}

/* ---------- 双栏骨架 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  margin-top: clamp(34px, 5vw, 62px);
}

.page-news .news-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(50px, 7vw, 96px);
}

/* ---------- 章节通用微调 ---------- */
.page-news .section__num {
  color: var(--cyan);
}

.page-news .section__title {
  color: var(--offwhite);
}

.page-news .section__lead {
  max-width: 60ch;
  color: var(--mist);
  line-height: 1.8;
}

/* ---------- 01 头条 ---------- */
.page-news .news-headlines__figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-news .media-frame__inner {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--panel);
}

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

.page-news .media-frame__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}

.page-news .headline-list {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .headline-item {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  border-left: 4px solid var(--cyan);
  background: linear-gradient(135deg, rgba(26, 16, 53, .96), rgba(11, 6, 32, .82));
  box-shadow: var(--hard-shadow);
  transition: transform .25s ease, border-color .25s ease;
}

.page-news .headline-item:hover,
.page-news .headline-item:focus-within {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.page-news .headline-item__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -.01em;
}

.page-news .headline-item__title a {
  color: var(--offwhite);
  text-decoration: none;
}

.page-news .headline-item__title a:hover,
.page-news .headline-item__title a:focus-visible {
  color: var(--cyan);
  outline: none;
}

.page-news .headline-item__excerpt {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .headline-item__meta {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(107, 95, 168, .55);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate);
}

/* ---------- 02 版本线 ---------- */
.page-news .news-versions__media {
  margin: clamp(20px, 3vw, 30px) 0 clamp(26px, 4vw, 40px);
}

.page-news .news-timeline .timeline__item {
  border-left: 2px solid var(--line);
  padding-left: clamp(16px, 3vw, 28px);
}

.page-news .news-timeline .timeline__item--now {
  border-left-color: var(--cyan);
}

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

.page-news .news-timeline .timeline__title {
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--offwhite);
}

.page-news .news-timeline .timeline__text {
  color: var(--mist);
  line-height: 1.8;
}

/* ---------- 03 条目流 ---------- */
.page-news .news-stream {
  counter-reset: newsitem;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-item {
  position: relative;
  padding: 18px 0 18px clamp(38px, 6vw, 58px);
  border-bottom: 1px dashed rgba(107, 95, 168, .45);
  transition: border-color .25s ease, background-color .25s ease;
}

.page-news .news-item::before {
  counter-increment: newsitem;
  content: counter(newsitem, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate);
}

.page-news .news-item:hover,
.page-news .news-item:focus-within {
  border-bottom-color: var(--cyan);
}

.page-news .news-item:hover::before,
.page-news .news-item:focus-within::before {
  color: var(--cyan);
}

.page-news .news-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
}

.page-news .news-item__time {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-news .news-item__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.35;
  color: var(--offwhite);
}

.page-news .news-item__excerpt {
  margin: 0;
  max-width: 62ch;
  max-height: 3.6em;
  overflow: hidden;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  transition: max-height .32s ease, color .25s ease;
}

.page-news .news-item:hover .news-item__excerpt,
.page-news .news-item:focus-within .news-item__excerpt {
  max-height: 12em;
  color: var(--offwhite);
}

/* ---------- 04 专题合辑 ---------- */
.page-news .news-seasons__media {
  margin: clamp(20px, 3vw, 30px) 0 clamp(24px, 4vw, 36px);
}

.page-news .season-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-news .season-card {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 16px, 16px 0, 100% 0, 100% 100%, 0 100%);
  transition: border-color .25s ease, transform .25s ease;
}

.page-news .season-card::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 0;
  width: 44px;
  height: 3px;
  background: var(--cyan);
}

.page-news .season-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.page-news .season-card__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--magenta);
}

.page-news .season-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 26px);
  color: var(--offwhite);
}

.page-news .season-card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 05 年度节奏 ---------- */
.page-news .news-annual__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .annual-card {
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line-strong);
  border-top: 4px solid var(--violet);
  background: linear-gradient(160deg, rgba(123, 59, 255, .16), rgba(26, 16, 53, .95) 62%);
  box-shadow: var(--hard-shadow);
}

.page-news .annual-card__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.8vw, 32px);
  color: var(--offwhite);
}

.page-news .annual-card__body {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .annual-card__meta {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--yellow);
}

.page-news .news-annual__figure {
  margin: clamp(24px, 4vw, 38px) 0 0;
}

/* ---------- 06 归档 ---------- */
.page-news .archive-stack {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .archive-stack .fold {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-news .archive-stack .fold[open] {
  border-color: var(--line-strong);
}

.page-news .archive-stack .fold__summary {
  padding: 16px clamp(16px, 3vw, 24px);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--offwhite);
  list-style: none;
}

.page-news .archive-stack .fold__summary::-webkit-details-marker {
  display: none;
}

.page-news .archive-stack .fold__summary::after {
  content: "+";
  float: right;
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-news .archive-stack .fold[open] .fold__summary::after {
  content: "–";
}

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

.page-news .archive-stack .fold__body {
  padding: 0 clamp(16px, 3vw, 24px) 20px;
}

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

.page-news .archive-list li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .archive-list .mono {
  flex: none;
  min-width: 44px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-news .archive-stack .fold__meta {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .archive-stack .fold__meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 255, .45);
}

.page-news .archive-stack .fold__meta a:hover,
.page-news .archive-stack .fold__meta a:focus-visible {
  color: var(--offwhite);
  border-bottom-color: var(--offwhite);
  outline: none;
}

/* ---------- 右侧索引栏 ---------- */
.page-news .news-rail__inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 3vw, 24px);
  border: 1px solid var(--line);
  border-top: 4px solid var(--cyan);
  background: rgba(26, 16, 53, .88);
}

.page-news .news-rail__title {
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .news-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-news .news-rail__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(107, 95, 168, .45);
  font-size: 14px;
  color: var(--offwhite);
}

.page-news .news-rail__count {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-news .news-rail__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .news-rail__btn {
  align-self: flex-start;
}

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

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

  .page-news .headline-item:nth-child(2) {
    margin-left: clamp(18px, 4vw, 56px);
  }

  .page-news .headline-item:nth-child(3) {
    margin-right: clamp(18px, 6vw, 92px);
  }
}

@media (min-width: 1040px) {
  .page-news .news-layout {
    grid-template-columns: minmax(0, 1fr) var(--news-rail-w);
    align-items: start;
  }

  .page-news .news-rail__inner {
    position: sticky;
    top: 92px;
  }

  .page-news .news-layout .news-rail {
    order: 2;
  }
}

@media (min-width: 1280px) {
  .page-news .season-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-poster__band {
    animation: none;
  }

  .page-news .headline-item,
  .page-news .season-card,
  .page-news .news-item__excerpt {
    transition: none;
  }
}