.page-news {
  --news-rail-w: 272px;
  --news-fig-ratio: 3 / 2;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 32px) 0 clamp(40px, 6vw, 72px);
  background:
    radial-gradient(118% 92% at 90% -6%, rgba(255, 176, 58, .46) 0%, rgba(242, 101, 34, .16) 44%, rgba(247, 244, 238, 0) 74%),
    linear-gradient(164deg, #FFE8CE 0%, #F7F4EE 58%, #F7F4EE 100%);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -58% 44%;
  height: 300px;
  background: radial-gradient(closest-side, rgba(242, 101, 34, .18), rgba(242, 101, 34, 0));
  pointer-events: none;
}

.page-news .news-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-news .news-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 48px);
}

.page-news .news-hero__text {
  max-width: 46ch;
}

.page-news .news-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(36px, 6.6vw, 76px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--c-night);
}

.page-news .news-hero .lead {
  margin: 20px 0 0;
  color: rgba(14, 27, 61, .82);
  max-width: 52ch;
}

.page-news .news-hero__stats {
  display: grid;
  gap: 12px;
  margin: 0;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.page-news .news-stat {
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-line);
  background: rgba(255, 255, 255, .74);
  backdrop-filter: blur(2px);
}

.page-news .news-stat dt {
  font-size: 13px;
  color: var(--c-graphite);
  letter-spacing: .02em;
}

.page-news .news-stat dd {
  margin: 6px 0 0;
  font-size: 20px;
  font-weight: 500;
  color: var(--c-orange-deep);
  letter-spacing: .04em;
}

/* ---------- 置顶条目 ---------- */
.page-news .pin {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(242, 101, 34, .42);
  background: var(--c-white);
  box-shadow: var(--shadow-lift);
}

.page-news .pin__figure {
  margin: 0;
  position: relative;
  background: linear-gradient(140deg, var(--c-orange) 0%, var(--c-night) 100%);
}

.page-news .pin__figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.page-news .pin__body {
  padding: clamp(24px, 4vw, 44px);
}

.page-news .pin__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--c-night);
}

.page-news .pin__lead {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(14, 27, 61, .84);
  max-width: 58ch;
}

.page-news .pin__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .pin__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--c-graphite);
}

.page-news .pin__facts .mono {
  font-size: 17px;
  font-weight: 500;
  color: var(--c-orange-deep);
  letter-spacing: .04em;
}

.page-news .pin__facts em {
  font-style: normal;
}

.page-news .pin__details {
  margin-top: 22px;
  border-radius: var(--radius-md);
  background: var(--c-dusk);
  border: 1px solid rgba(255, 176, 58, .5);
}

.page-news .pin__details > summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  font-size: 16px;
  color: var(--c-night);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.page-news .pin__details > summary::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--c-orange);
  flex: none;
  transition: transform .22s var(--ease);
}

.page-news .pin__details[open] > summary::before {
  transform: rotate(90deg);
}

.page-news .pin__details-body {
  padding: 0 20px 20px;
}

.page-news .pin__details-body p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(14, 27, 61, .84);
}

.page-news .pin__details-body p:last-child {
  margin-bottom: 0;
}

.page-news .pin__details-body a {
  color: var(--c-indy);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .pin__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 条目区 ---------- */
.page-news .news-board {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-news .news-rail__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.01em;
  color: var(--c-night);
}

.page-news .news-rail__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-news .chip {
  appearance: none;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--c-line-strong);
  background: rgba(255, 255, 255, .8);
  color: var(--c-night);
  transition: background-color .18s var(--ease), color .18s var(--ease), transform .18s var(--ease), border-color .18s var(--ease);
}

.page-news .chip:hover {
  transform: translateY(-1px);
  border-color: var(--c-orange);
}

.page-news .chip:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 2px;
}

.page-news .chip.is-active {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-white);
  font-weight: 700;
}

.page-news .news-rail__note {
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--c-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-graphite);
}

.page-news .news-stream {
  display: grid;
  gap: 0;
}

.page-news .entry {
  padding: 26px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-news .entry:first-child {
  padding-top: 4px;
}

.page-news .entry__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

.page-news .entry__time {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--c-graphite);
}

.page-news .entry__time::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--c-sand);
  flex: none;
}

.page-news .entry__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-night);
}

.page-news .entry__summary {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(14, 27, 61, .8);
  max-width: 60ch;
}

.page-news .entry__more {
  margin-top: 14px;
}

.page-news .entry__more > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-indy);
  border-bottom: 1px dashed rgba(27, 58, 140, .4);
  padding-bottom: 2px;
}

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

.page-news .entry__more > summary::after {
  content: "＋";
  font-size: 13px;
  transition: transform .22s var(--ease);
}

.page-news .entry__more[open] > summary::after {
  transform: rotate(45deg);
}

.page-news .entry__more p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(14, 27, 61, .74);
  max-width: 60ch;
  animation: news-fade .22s var(--ease);
}

@keyframes news-fade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 插图 ---------- */
.page-news .news-fig {
  margin: 30px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(140deg, var(--c-sand) 0%, var(--c-night) 100%);
}

.page-news .news-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: var(--news-fig-ratio);
  object-fit: cover;
}

.page-news .news-fig__cap {
  padding: 12px 18px;
  font-size: 13px;
  color: var(--c-graphite);
  background: var(--c-white);
  border-top: 1px solid var(--c-line);
}

.page-news .news-banner {
  margin: 0;
  overflow: hidden;
  background: linear-gradient(120deg, #F26522 0%, #FFB03A 34%, #1B3A8C 76%, #0E1B3D 100%);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1920 / 680;
  object-fit: cover;
}

/* ---------- 投稿与查阅 ---------- */
.page-news .section--night .section-title {
  color: var(--c-paper);
}

.page-news .section--night .eyebrow {
  color: var(--c-sand);
}

.page-news .section--night .lead {
  color: var(--c-on-night);
  max-width: 56ch;
}

.page-news .contribute__head {
  max-width: 60ch;
}

.page-news .contribute__head h2 {
  margin: 12px 0 0;
}

.page-news .contribute__head .lead {
  margin: 18px 0 0;
}

.page-news .contribute__grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(30px, 4vw, 48px);
}

.page-news .contribute__grid .card {
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-news .contribute__grid .card__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-news .contribute__grid .card__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-on-night);
}

.page-news .contribute__grid .card__meta {
  margin: auto 0 0;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-sand);
}

.page-news .contribute__link {
  align-self: flex-start;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-neon);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
  transition: color .18s var(--ease);
}

.page-news .contribute__link:hover {
  color: var(--c-white);
}

.page-news .contribute__link:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: end;
  }

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

@media (min-width: 900px) {
  .page-news .pin {
    display: grid;
    grid-template-columns: minmax(0, 42fr) minmax(0, 58fr);
    align-items: stretch;
  }

  .page-news .pin__figure {
    height: 100%;
  }
}

@media (min-width: 980px) {
  .page-news .news-board {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding-right: 8px;
  }

  .page-news .news-rail__filters {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .page-news .chip {
    text-align: left;
    padding: 11px 20px;
  }

  .page-news .news-fig--narrow {
    max-width: 78%;
  }
}

@media (max-width: 719px) {
  .page-news .pin__figure img {
    min-height: 180px;
  }

  .page-news .news-fig {
    margin: 24px 0;
  }

  .page-news .news-hero__stats {
    margin-top: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .chip,
  .page-news .entry__more > summary::after,
  .page-news .pin__details > summary::before {
    transition: none;
  }

  .page-news .entry__more p {
    animation: none;
  }
}