.page-news {
  --news-gap: clamp(18px, 3vw, 30px);
  --news-rule: var(--c-line-soft);
}

/* 面包屑 */
.page-news .breadcrumbs {
  margin-top: clamp(14px, 2.4vw, 26px);
  font-size: 0.8125rem;
}

/* 首屏框景 */
.page-news .news-masthead {
  margin-block: clamp(14px, 2.2vw, 24px) clamp(34px, 5.5vw, 70px);
}

.page-news .news-masthead__frame {
  position: relative;
  padding: clamp(30px, 4vw, 54px) clamp(18px, 3.4vw, 48px) clamp(26px, 3.6vw, 44px);
  border: 1px solid var(--c-line);
  background:
    radial-gradient(120% 140% at 88% 0%, rgba(83, 243, 228, 0.11), transparent 58%),
    radial-gradient(90% 120% at 0% 100%, rgba(156, 124, 255, 0.13), transparent 62%),
    linear-gradient(180deg, rgba(13, 21, 36, 0.95), rgba(6, 10, 19, 0.78));
  box-shadow: var(--shadow-glow);
  overflow: hidden;
}

.page-news .news-masthead__frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 24px;
  background: repeating-linear-gradient(90deg, var(--c-line) 0 1px, transparent 1px 20px);
  opacity: 0.6;
  pointer-events: none;
}

.page-news .news-masthead__inner {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-news .news-masthead__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5vw, 3.3rem);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: 0.04em;
  color: var(--c-paper);
}

.page-news .kicker {
  margin: 0 0 14px;
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-news .lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  line-height: 1.85;
  color: var(--c-steel);
}

/* 同步状态卡 */
.page-news .sync-card {
  align-self: start;
  padding: 16px 18px 18px;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-cyan);
  background: rgba(6, 10, 19, 0.62);
}

.page-news .sync-card__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 9px;
  margin-bottom: 9px;
  border-bottom: 1px dashed var(--news-rule);
  font-size: 0.8125rem;
}

.page-news .sync-card__row:last-of-type {
  border-bottom: 0;
  margin-bottom: 12px;
}

.page-news .sync-card__label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--c-steel);
  letter-spacing: 0.06em;
  font-size: 0.6875rem;
}

.page-news .sync-card__value {
  color: var(--c-paper);
}

.page-news .sync-card__link {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(83, 243, 228, 0.4);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .sync-card__link:hover,
.page-news .sync-card__link:focus-visible {
  color: var(--c-violet);
  border-color: var(--c-violet);
}

/* 章节节奏 */
.page-news .page-section {
  margin-bottom: clamp(46px, 7vw, 92px);
}

.page-news .section-head {
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-news .section-head__index {
  color: var(--c-violet);
  letter-spacing: 0.2em;
}

.page-news .section-head__note {
  color: var(--c-steel);
  max-width: 64ch;
}

/* 头条卡片 */
.page-news .lead-card {
  position: relative;
  display: grid;
  gap: var(--news-gap);
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--c-line);
  background:
    linear-gradient(135deg, rgba(83, 243, 228, 0.11), rgba(156, 124, 255, 0.12) 46%, rgba(6, 10, 19, 0) 78%),
    rgba(13, 21, 36, 0.86);
  overflow: hidden;
}

.page-news .lead-card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet) 60%, transparent);
  pointer-events: none;
}

.page-news .lead-card__body {
  min-width: 0;
}

.page-news .lead-card__title {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.95rem);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: 0.03em;
  color: var(--c-paper);
}

.page-news .lead-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-news .lead-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .lead-facts li {
  flex: 1 1 150px;
  min-width: 0;
  padding-top: 10px;
  border-top: 1px solid var(--c-line);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--c-steel);
}

.page-news .lead-facts .mono {
  display: block;
  margin-bottom: 4px;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
}

.page-news .lead-card__figure {
  margin: 0;
  align-self: start;
}

/* 媒体框 */
.page-news .media-frame {
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  overflow: hidden;
}

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

.page-news .media-frame__caption {
  padding: 8px 12px;
  border-top: 1px solid var(--news-rule);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--c-steel);
}

.page-news .media-frame--glow {
  box-shadow: 0 0 0 1px rgba(83, 243, 228, 0.12), 0 18px 48px rgba(0, 0, 0, 0.4);
}

/* 分类公告流 */
.page-news .news-stream__body {
  position: relative;
  display: grid;
  gap: 18px;
}

.page-news .filter__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .filter__rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.page-news .filter__rail label {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  font-size: 0.8125rem;
  line-height: 1.2;
  color: var(--c-steel);
  background: rgba(13, 21, 36, 0.6);
  border: 1px solid var(--c-line);
  cursor: pointer;
  user-select: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .filter__rail label:hover {
  color: var(--c-paper);
  border-color: var(--c-cyan);
}

.page-news #nf-all:checked ~ .filter__rail label[for="nf-all"],
.page-news #nf-version:checked ~ .filter__rail label[for="nf-version"],
.page-news #nf-event:checked ~ .filter__rail label[for="nf-event"],
.page-news #nf-benefit:checked ~ .filter__rail label[for="nf-benefit"],
.page-news #nf-fix:checked ~ .filter__rail label[for="nf-fix"],
.page-news #nf-partner:checked ~ .filter__rail label[for="nf-partner"],
.page-news #nf-rule:checked ~ .filter__rail label[for="nf-rule"] {
  color: var(--c-space);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-news #nf-version:checked ~ .notice-grid .notice-item:not([data-cat="version"]),
.page-news #nf-event:checked ~ .notice-grid .notice-item:not([data-cat="event"]),
.page-news #nf-benefit:checked ~ .notice-grid .notice-item:not([data-cat="benefit"]),
.page-news #nf-fix:checked ~ .notice-grid .notice-item:not([data-cat="fix"]),
.page-news #nf-partner:checked ~ .notice-grid .notice-item:not([data-cat="partner"]),
.page-news #nf-rule:checked ~ .notice-grid .notice-item:not([data-cat="rule"]) {
  display: none;
}

.page-news .notice-grid {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-news .notice-item {
  min-width: 0;
  padding: 15px 16px 14px;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-line);
  background: rgba(13, 21, 36, 0.66);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-news .notice-item:hover {
  transform: translateY(-2px);
  background: rgba(13, 21, 36, 0.9);
}

.page-news .notice-item[data-cat="version"] { border-left-color: rgba(83, 243, 228, 0.75); }
.page-news .notice-item[data-cat="event"] { border-left-color: rgba(156, 124, 255, 0.75); }
.page-news .notice-item[data-cat="benefit"] { border-left-color: rgba(242, 196, 109, 0.75); }
.page-news .notice-item[data-cat="fix"] { border-left-color: rgba(255, 122, 138, 0.75); }
.page-news .notice-item[data-cat="partner"] { border-left-color: rgba(110, 231, 168, 0.75); }
.page-news .notice-item[data-cat="rule"] { border-left-color: rgba(143, 163, 183, 0.7); }

.page-news .notice-item:hover[data-cat="version"] { border-left-color: var(--c-cyan); }
.page-news .notice-item:hover[data-cat="event"] { border-left-color: var(--c-violet); }
.page-news .notice-item:hover[data-cat="benefit"] { border-left-color: var(--c-gold); }
.page-news .notice-item:hover[data-cat="fix"] { border-left-color: var(--c-coral); }
.page-news .notice-item:hover[data-cat="partner"] { border-left-color: var(--c-green); }
.page-news .notice-item:hover[data-cat="rule"] { border-left-color: var(--c-steel); }

.page-news .notice-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .tag {
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  padding: 3px 8px;
}

.page-news .notice-item__time {
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--c-steel);
  white-space: nowrap;
}

.page-news .notice-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.9688rem;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.02em;
  color: var(--c-paper);
}

.page-news .notice-item__more {
  margin-top: 8px;
}

.page-news .notice-item__more > summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

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

.page-news .notice-item__more > summary::before {
  content: "+";
  font-family: var(--font-mono);
}

.page-news .notice-item__more[open] > summary::before {
  content: "−";
}

.page-news .notice-item__more > summary:hover {
  color: var(--c-violet);
}

.page-news .notice-item__more > p {
  margin: 9px 0 0;
  padding-top: 9px;
  border-top: 1px dashed var(--news-rule);
  font-size: 0.8125rem;
  line-height: 1.78;
  color: var(--c-steel);
}

/* 变更说明归档 */
.page-news .changelog-card {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding: clamp(22px, 3.4vw, 42px);
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-gold);
  background: linear-gradient(158deg, rgba(242, 196, 109, 0.09), rgba(13, 21, 36, 0.9) 42%, rgba(6, 10, 19, 0.92));
}

.page-news .changelog-card__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.03em;
  color: var(--c-paper);
}

.page-news .changelog-card__text {
  margin: 0;
  max-width: 60ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-news .quarter-list {
  display: grid;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .quarter {
  border: 1px solid var(--c-line);
  background: rgba(6, 10, 19, 0.55);
  transition: border-color 0.22s var(--ease);
}

.page-news .quarter:hover,
.page-news .quarter[open] {
  border-color: rgba(242, 196, 109, 0.7);
}

.page-news .quarter > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 9px 12px;
  list-style: none;
  cursor: pointer;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

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

.page-news .quarter__code {
  color: var(--c-paper);
}

.page-news .quarter__range {
  color: var(--c-gold);
  opacity: 0.55;
  transition: opacity 0.22s var(--ease);
}

.page-news .quarter:hover .quarter__range,
.page-news .quarter[open] .quarter__range,
.page-news .quarter:focus-within .quarter__range {
  opacity: 1;
}

.page-news .quarter > p {
  margin: 0;
  padding: 0 12px 11px;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--c-steel);
}

.page-news .changelog-card__figure {
  margin: 0;
  align-self: start;
}

/* 批次矩阵 */
.page-news .matrix-layout {
  display: grid;
  gap: var(--news-gap);
}

.page-news .matrix-layout__figure {
  margin: 0;
  align-self: start;
}

.page-news .matrix {
  display: grid;
  grid-template-columns: minmax(66px, 1fr) repeat(3, minmax(0, 1fr));
  gap: 6px;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--c-line);
  background: rgba(13, 21, 36, 0.5);
}

.page-news .matrix__head {
  padding: 4px 2px 8px;
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--c-steel);
  border-bottom: 1px solid var(--c-line);
}

.page-news .matrix__head--label {
  font-family: var(--font-body);
  text-align: left;
  letter-spacing: 0.04em;
}

.page-news .matrix__label {
  display: flex;
  align-items: center;
  padding: 8px 2px;
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-news .matrix__cell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 7px 4px;
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  color: var(--c-steel);
  text-decoration: none;
  border: 1px solid var(--c-line);
  background: rgba(6, 10, 19, 0.55);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-news .matrix__cell:hover,
.page-news .matrix__cell:focus-visible {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
  background: var(--c-cyan-soft);
}

/* 回看入口 */
.page-news .replay-grid {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: replay;
}

.page-news .replay-item {
  position: relative;
  padding: 18px 18px 16px;
  border: 1px solid var(--c-line);
  background: rgba(13, 21, 36, 0.6);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-news .replay-item:hover {
  transform: translateY(-2px);
  border-color: var(--c-violet);
}

.page-news .replay-item__num {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 8px;
  font-size: 0.75rem;
  color: var(--c-space);
  background: var(--c-gold);
  letter-spacing: 0.08em;
}

.page-news .replay-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--c-paper);
}

.page-news .replay-item p {
  margin: 0 0 12px;
  font-size: 0.8125rem;
  line-height: 1.78;
  color: var(--c-steel);
}

.page-news .replay-item__link {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(83, 243, 228, 0.38);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .replay-item__link:hover,
.page-news .replay-item__link:focus-visible {
  color: var(--c-violet);
  border-color: var(--c-violet);
}

/* 响应式：中屏 */
@media (min-width: 620px) {
  .page-news .notice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .quarter-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .replay-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-news .lead-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

/* 响应式：桌面 */
@media (min-width: 960px) {
  .page-news .news-masthead__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
    align-items: end;
  }

  .page-news .news-stream__body {
    grid-template-columns: 196px minmax(0, 1fr);
    align-items: start;
    gap: clamp(20px, 3vw, 36px);
  }

  .page-news .filter__rail {
    position: sticky;
    top: 96px;
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-news .filter__rail label {
    justify-content: flex-start;
    width: 100%;
  }

  .page-news .changelog-card {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news .matrix-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }

  .page-news .replay-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .matrix__cell {
    min-height: 42px;
    font-size: 0.6875rem;
  }
}

@media (min-width: 1180px) {
  .page-news .notice-grid {
    gap: 16px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition: none !important;
  }

  .page-news .notice-item:hover,
  .page-news .replay-item:hover {
    transform: none;
  }
}