.page-news {
  --news-gap: 28px;
  --news-card-bg: rgba(15, 42, 67, .72);
  padding-bottom: 48px;
}

/* ===== 页头 Hero ===== */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: 36px 24px 32px;
  margin-bottom: 40px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(57, 255, 20, .12), transparent 38%),
    var(--color-bg-2);
  box-shadow: var(--shadow-panel);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, transparent 0 12px, rgba(57, 255, 20, .08) 12px 14px);
  clip-path: polygon(78% 0, 100% 0, 100% 100%, 62% 100%);
  pointer-events: none;
}

.page-news .news-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--color-neon);
  text-transform: uppercase;
}

.page-news .news-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.05;
  margin: 0 0 16px;
  letter-spacing: .02em;
  font-weight: 800;
}

.page-news .news-hero__lead {
  max-width: 34em;
  margin: 0;
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-news .news-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.page-news .news-hero__stat {
  flex: 1 1 100px;
  background: rgba(10, 14, 39, .6);
  border: 1px solid var(--color-line);
  border-radius: 20px;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
}

.page-news .news-hero__stat-value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  line-height: 1.1;
  color: var(--color-neon);
}

.page-news .news-hero__stat-label {
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-muted);
}

/* ===== 主体布局 ===== */
.page-news .news-layout {
  display: block;
}

.page-news .news-articles {
  min-width: 0;
}

/* ===== 筛选标签 ===== */
.page-news .news-filter-radio {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
  pointer-events: none;
}

.page-news .news-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 28px;
}

.page-news .news-filter-btn {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-line-strong);
  background: transparent;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
  user-select: none;
}

.page-news .news-filter-btn:hover {
  border-color: var(--color-line-neon);
  color: var(--color-neon);
}

.page-news #news-filter-all:checked ~ .news-filter-bar label[for="news-filter-all"],
.page-news #news-filter-method:checked ~ .news-filter-bar label[for="news-filter-method"],
.page-news #news-filter-insight:checked ~ .news-filter-bar label[for="news-filter-insight"],
.page-news #news-filter-update:checked ~ .news-filter-bar label[for="news-filter-update"] {
  background: var(--color-neon);
  border-color: var(--color-neon);
  color: var(--color-ink);
  font-weight: 600;
}

.page-news #news-filter-all:focus-visible ~ .news-filter-bar label[for="news-filter-all"],
.page-news #news-filter-method:focus-visible ~ .news-filter-bar label[for="news-filter-method"],
.page-news #news-filter-insight:focus-visible ~ .news-filter-bar label[for="news-filter-insight"],
.page-news #news-filter-update:focus-visible ~ .news-filter-bar label[for="news-filter-update"] {
  outline: 2px solid var(--color-neon);
  outline-offset: 2px;
}

.page-news #news-filter-method:checked ~ .news-grid .news-card:not([data-cat="method"]),
.page-news #news-filter-insight:checked ~ .news-grid .news-card:not([data-cat="insight"]),
.page-news #news-filter-update:checked ~ .news-grid .news-card:not([data-cat="update"]) {
  display: none;
}

/* ===== 瀑布流列表 ===== */
.page-news .news-grid {
  columns: 1;
  column-gap: var(--news-gap);
}

.page-news .news-card {
  break-inside: avoid;
  display: flex;
  flex-direction: column;
  background: var(--news-card-bg);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .28);
  margin: 0 0 var(--news-gap);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-news .news-card:hover {
  border-color: var(--color-line-neon);
  transform: translateY(-3px);
}

.page-news .news-card__media {
  position: relative;
  margin: 0;
  overflow: hidden;
}

.page-news .news-card__media::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42px;
  height: 18px;
  background: var(--color-orange);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

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

.page-news .news-card__body {
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.page-news .news-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.page-news .news-card__time {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.page-news .news-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.2;
  letter-spacing: .01em;
}

.page-news .news-card__summary {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-news .news-card:hover .news-card__summary,
.page-news .news-card:focus-within .news-card__summary {
  -webkit-line-clamp: unset;
  display: block;
}

.page-news .news-card__link {
  align-self: flex-start;
  color: var(--color-neon);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}

.page-news .news-card__link:hover {
  border-bottom-color: var(--color-neon);
}

/* ===== 右侧栏 ===== */
.page-news .news-side {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.page-news .news-panel {
  background: var(--color-bg-2);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  box-shadow: var(--shadow-panel);
  position: relative;
  overflow: hidden;
}

.page-news .news-panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 3px;
  background: var(--color-neon);
  border-radius: 0 3px 3px 0;
}

.page-news .news-panel__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: .03em;
}

.page-news .news-panel__media {
  margin: 0 0 18px;
  border-radius: 16px;
  overflow: hidden;
}

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

.page-news .hot-topics__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .hot-topics__tag {
  display: inline-flex;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  background: rgba(57, 255, 20, .08);
  border: 1px solid var(--color-line-neon);
  color: var(--color-text);
  font-size: 13px;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-news .hot-topics__tag:hover {
  background: var(--color-neon);
  color: var(--color-ink);
}

.page-news .hot-topics__note {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  border-top: 1px solid var(--color-line);
  padding-top: 14px;
}

/* ===== 更新日志 ===== */
.page-news .changelog__item {
  border-bottom: 1px solid var(--color-line);
}

.page-news .changelog__item:last-child {
  border-bottom: none;
}

.page-news .changelog__summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 0;
  cursor: pointer;
  font-size: 14px;
}

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

.page-news .changelog__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--color-neon);
  transition: transform .2s var(--ease);
}

.page-news .changelog__item[open] .changelog__summary::after {
  content: "–";
}

.page-news .changelog__time {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text);
}

.page-news .changelog__badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--color-orange);
  color: var(--color-ink);
  font-weight: 600;
  white-space: nowrap;
}

.page-news .changelog__desc {
  padding: 0 0 16px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.7;
}

.page-news .changelog__desc p {
  margin: 0;
}

/* ===== 底部 CTA ===== */
.page-news .news-cta {
  margin-top: 48px;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  background: var(--color-bg-2);
}

.page-news .news-cta__media {
  margin: 0;
}

.page-news .news-cta__image {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 160px;
  object-fit: cover;
}

.page-news .news-cta__content {
  padding: 24px 22px 28px;
}

.page-news .news-cta__title {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 0 0 10px;
}

.page-news .news-cta__text {
  margin: 0 0 20px;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.75;
  max-width: 44em;
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面端 ===== */
@media (min-width: 1024px) {
  .page-news .news-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 36px;
    align-items: end;
    padding: 44px 40px 40px;
  }

  .page-news .news-hero__stats {
    margin-top: 0;
    width: 320px;
  }

  .page-news .news-hero__stat {
    flex: 1 1 90px;
  }

  .page-news .news-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 36px;
    align-items: start;
  }

  .page-news .news-side {
    margin-top: 0;
    position: sticky;
    top: calc(var(--header-h) + 16px);
    max-height: calc(100vh - var(--header-h) - 32px);
    overflow: auto;
    scrollbar-width: thin;
  }

  .page-news .news-grid {
    columns: 2;
  }

  .page-news .news-card__title {
    font-size: 1.65rem;
  }

  .page-news .news-cta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }

  .page-news .news-cta__image {
    height: 100%;
    object-fit: cover;
    aspect-ratio: auto;
  }

  .page-news .news-cta__content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

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

  .page-news .news-card__summary {
    -webkit-line-clamp: unset;
    display: block;
  }
}