.page-news {
  --news-bg: #0A1128;
  --news-accent: #00E878;
  --news-alert: #FF6B35;
  --news-section-1: #1A3A3A;
  --news-section-2: #5C1A3C;
  --news-section-3: #2D1B4E;
  --news-text: #E8ECF1;
  --news-muted: #8896A5;
  --news-border: rgba(255, 255, 255, 0.16);
  --news-border-strong: rgba(255, 255, 255, 0.32);
  --news-font-headline: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --news-font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --news-font-data: "Roboto Mono", "SFMono-Regular", Consolas, monospace;
  --news-space-2: 1rem;
  --news-space-3: 2rem;
  --news-space-4: 4rem;
  --news-space-5: 7rem;
  background-color: var(--news-bg);
  color: var(--news-text);
  font-family: var(--news-font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-news a {
  color: var(--news-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms ease, color 160ms ease;
}

.page-news a:hover,
.page-news a:focus-visible {
  border-color: var(--news-accent);
  color: #F5F7FA;
}

.page-news :focus-visible {
  outline: 3px solid var(--news-accent);
  outline-offset: 3px;
}

.page-news .section-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 48px;
  border: 4px solid var(--news-accent);
  color: var(--news-accent);
  font-size: 1rem;
  font-weight: 700;
  margin-right: var(--news-space-2);
  flex: 0 0 auto;
}

.page-news .section-symbol--orange {
  border-color: var(--news-alert);
  color: var(--news-alert);
}

.page-news .data-chip {
  display: inline-block;
  background: var(--news-accent);
  color: #0A1128;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.7rem;
  border-radius: 2px;
}

.page-news .data-chip--alert {
  background: var(--news-alert);
  color: #F5F7FA;
}

.page-news .mono-data {
  font-family: var(--news-font-data);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}

.page-news .panel-frame {
  background: rgba(255, 255, 255, 0.04);
  border: 4px solid var(--news-border-strong);
  box-shadow: 0 12px 0 rgba(0, 0, 0, 0.25);
  position: relative;
}

.page-news .panel-frame::before {
  content: "";
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  height: 8px;
  background: linear-gradient(90deg, var(--news-accent) 0 33%, transparent 33% 66%, var(--news-alert) 66% 100%);
  pointer-events: none;
}

.page-news__hero {
  padding: clamp(1.25rem, 5vw, 3.5rem) clamp(1rem, 4vw, 3rem) 0;
  position: relative;
}

.page-news__hero-grid,
.news-hero__grid {
  display: grid;
  gap: 2rem;
  max-width: 1440px;
  margin: 0 auto;
}

.news-hero__crumb {
  font-size: 0.9rem;
  color: var(--news-muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
}

.news-hero__crumb a {
  border-bottom: none;
}

.news-hero__crumb span {
  color: var(--news-text);
}

.news-hero__code {
  color: var(--news-accent);
  margin-bottom: 0.75rem;
}

.news-hero__title {
  font-family: var(--news-font-headline);
  font-style: normal;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  max-width: 12em;
}

.news-hero__lead {
  color: var(--news-text);
  font-size: clamp(1rem, 2vw, 1.15rem);
  max-width: 36em;
  margin: 0;
}

.news-hero__board {
  padding: 1.25rem;
}

.news-hero__board-label {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: var(--news-muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.news-hero__board-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.news-hero__board-item {
  border-left: 3px solid var(--news-accent);
  padding-left: 0.75rem;
}

.news-hero__board-item dt {
  color: var(--news-muted);
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}

.news-hero__board-item dd {
  margin: 0;
  color: var(--news-text);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.2;
}

.news-hero__divider {
  display: block;
  width: 100%;
  height: 40px;
  margin-top: 2.5rem;
}

.page-news__feed {
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 4vw, 3rem);
}

.news-feed__head,
.news-preview__text,
.news-update__head,
.news-rule__text,
.news-feedback__content {
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
}

.news-feed__head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.news-feed__heading,
.news-update__heading,
.news-rule__heading,
.news-feedback__heading {
  font-family: var(--news-font-headline);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 0.25rem;
}

.news-feed__desc,
.news-update__desc {
  color: var(--news-muted);
  margin: 0;
  max-width: 42em;
}

.news-feed__toolbar {
  max-width: 1440px;
  margin: 0 auto 2rem;
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.news-feed__toolbar-label {
  color: var(--news-muted);
  font-size: 0.85rem;
  margin-right: 0.25rem;
}

.news-feed__filter {
  font-family: var(--news-font-body);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--news-text);
  background: transparent;
  border: 2px solid var(--news-border);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.news-feed__filter.is-active {
  background: var(--news-accent);
  border-color: var(--news-accent);
  color: #0A1128;
}

.news-feed__toolbar-status {
  color: var(--news-accent);
  margin-left: auto;
  font-size: 0.85rem;
}

.news-feed__list {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  gap: 1.1rem;
}

.news-card {
  background: rgba(255, 255, 255, 0.03);
  border: 4px solid var(--news-border);
  padding: 1.1rem;
  position: relative;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.news-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.28);
  border-color: var(--news-border-strong);
}

.news-card::before {
  content: "";
  display: block;
  width: 100%;
  height: 6px;
  background: var(--news-card-color, var(--news-muted));
  margin-bottom: 0.75rem;
}

.news-card--preview {
  --news-card-color: var(--news-alert);
}

.news-card--version {
  --news-card-color: var(--news-accent);
}

.news-card--rule {
  --news-card-color: #8896A5;
}

.news-card--feedback {
  --news-card-color: #FFD166;
}

.news-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.news-card__date {
  color: var(--news-muted);
  white-space: nowrap;
}

.news-card__title {
  font-family: var(--news-font-headline);
  font-size: 1.15rem;
  line-height: 1.4;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.news-card__excerpt {
  color: var(--news-muted);
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}

.news-card__collapsible {
  border-top: 1px dashed var(--news-border);
  padding-top: 0.4rem;
}

.news-card__collapsible summary {
  cursor: pointer;
  color: var(--news-accent);
  font-size: 0.9rem;
  font-weight: 700;
  list-style: none;
  user-select: none;
}

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

.news-card__collapsible summary::before {
  content: "+ ";
  font-family: var(--news-font-data);
}

.news-card__collapsible[open] summary::before {
  content: "− ";
}

.news-card__detail {
  margin-top: 0.6rem;
  background: rgba(0, 0, 0, 0.12);
  border-left: 3px solid var(--news-accent);
  padding: 0.75rem 0.9rem;
}

.news-card__detail p {
  margin: 0 0 0.5rem;
  color: var(--news-text);
  font-size: 0.95rem;
}

.news-card__detail p:last-child {
  margin-bottom: 0;
}

.news-card__detail-link a {
  font-weight: 700;
  font-size: 0.9rem;
}

.news-feed__timeline {
  display: block;
  width: 100%;
  height: 120px;
  margin: 2.5rem auto 0;
}

.news-preview {
  background: var(--news-section-1);
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 4vw, 3rem);
}

.news-preview__text {
  max-width: 1440px;
}

.news-preview__text .section-symbol--preview {
  border-color: var(--news-alert);
  color: var(--news-alert);
}

.news-preview__heading {
  font-family: var(--news-font-headline);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  margin: 0 0 0.5rem;
}

.news-preview__lead {
  color: var(--news-text);
  font-size: 1rem;
  max-width: 44em;
  margin: 0 0 1.5rem;
}

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

.news-preview__item {
  border-left: 4px solid var(--news-alert);
  background: rgba(0, 0, 0, 0.14);
  padding: 0.8rem 1rem;
  margin-bottom: 0.7rem;
  font-size: 0.95rem;
}

.news-preview__item .mono-data {
  color: var(--news-alert);
  font-family: var(--news-font-data);
  margin-right: 0.6rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.news-preview__media {
  margin: 2rem 0 0;
}

.news-preview__media img,
.news-update__media img,
.news-rule__media img,
.news-feedback__media img {
  width: 100%;
  height: auto;
  display: block;
  border: 4px solid var(--news-border-strong);
  box-shadow: 0 10px 0 rgba(0, 0, 0, 0.24);
  object-fit: cover;
}

.news-preview__caption,
.news-update__caption,
.news-rule__caption,
.news-feedback__caption {
  color: var(--news-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
  letter-spacing: 0.02em;
}

.page-news__update {
  background: var(--news-section-1);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 4vw, 3rem);
}

.news-update__head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.news-update__layout {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

.news-update__log {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 4px solid var(--news-accent);
}

.news-update__entry {
  padding-left: 1.25rem;
  padding-bottom: 1.5rem;
  position: relative;
}

.news-update__entry::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--news-bg);
  border: 4px solid var(--news-accent);
}

.news-update__entry[data-year="后续"]::before {
  border-color: var(--news-alert);
}

.news-update__version {
  color: var(--news-accent);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.news-update__entry[data-year="后续"] .news-update__version {
  color: var(--news-alert);
}

.news-update__name {
  font-family: var(--news-font-headline);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
}

.news-update__detail {
  color: var(--news-muted);
  font-size: 0.95rem;
  margin: 0;
}

.news-update__media img {
  border-color: var(--news-accent);
}

.page-news__rule {
  background: var(--news-section-2);
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 4vw, 3rem);
}

.news-rule__inner {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

.news-rule__text .section-symbol--rule {
  border-color: var(--news-alert);
  color: var(--news-alert);
}

.news-rule__heading {
  font-family: var(--news-font-headline);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  margin: 0 0 0.5rem;
}

.news-rule__lead {
  color: var(--news-text);
  font-size: 1rem;
  max-width: 42em;
  margin: 0 0 1.5rem;
}

.news-rule__list {
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
}

.news-rule__list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed var(--news-border-strong);
  font-size: 0.95rem;
}

.news-rule__list-item:last-child {
  border-bottom: none;
}

.news-rule__link {
  margin: 0;
}

.news-rule__media img {
  border-color: var(--news-alert);
}

.page-news__feedback {
  background: var(--news-section-3);
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 4vw, 3rem);
}

.news-feedback__grid {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

.news-feedback__content .section-symbol--feedback {
  border-color: var(--news-accent);
  color: var(--news-accent);
}

.news-feedback__heading {
  font-family: var(--news-font-headline);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  margin: 0 0 0.5rem;
}

.news-feedback__lead {
  color: var(--news-text);
  max-width: 40em;
  margin: 0 0 1.5rem;
}

.news-feedback__list {
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
}

.news-feedback__list div {
  border-left: 3px solid var(--news-accent);
  padding-left: 0.9rem;
  margin-bottom: 1rem;
}

.news-feedback__list dt {
  color: var(--news-accent);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.news-feedback__list dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--news-text);
}

.news-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin: 0;
}

.news-feedback__btn {
  display: inline-block;
  background: var(--news-accent);
  color: #0A1128;
  font-weight: 700;
  padding: 0.6rem 1.4rem;
  border: 3px solid var(--news-accent);
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.news-feedback__btn:hover,
.news-feedback__btn:focus-visible {
  background: transparent;
  color: var(--news-accent);
  border-color: var(--news-accent);
}

.news-feedback__link {
  color: var(--news-text);
  border-bottom: 1px solid var(--news-text);
}

.news-feedback__link:hover,
.news-feedback__link:focus-visible {
  color: var(--news-accent);
  border-color: var(--news-accent);
}

@media (min-width: 720px) {
  .news-hero__grid {
    grid-template-columns: 2fr 1fr;
    align-items: stretch;
  }

  .news-hero__board {
    margin-top: 1.5rem;
  }

  .news-feed__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-preview__text {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    align-items: start;
  }

  .news-preview__heading,
  .news-preview__lead,
  .news-preview__list {
    grid-column: 2;
  }

  .news-preview__heading {
    margin-top: 0.6rem;
  }

  .news-update__layout {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }

  .news-rule__inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .news-feedback__grid {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .news-feed__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .news-hero__title {
    font-size: 3.5rem;
  }

  .news-feed__toolbar {
    flex-wrap: nowrap;
  }
}

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