/* ============ 品牌日志页专属样式 ============ */
.page-news {
  background: var(--ink-black);
  color: var(--white-warm);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* --- 首屏 Hero --- */
.page-news .news-hero {
  position: relative;
  padding: 96px 20px 56px;
  border-bottom: 1px solid var(--brown-dim);
  background:
    linear-gradient(135deg, rgba(201, 169, 78, 0.08), transparent 45%),
    var(--ink-black);
}

.page-news .news-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  max-width: var(--container-w);
  margin: 0 auto;
}

.page-news .breadcrumb {
  grid-column: 1 / -1;
  font-size: var(--fs-6);
  color: var(--gray-mist);
  letter-spacing: 0.04em;
}

.page-news .breadcrumb a {
  color: var(--gold-deep);
  text-decoration: none;
  transition: color var(--dur) var(--ease-out);
}

.page-news .breadcrumb a:hover {
  color: var(--gold-bright);
}

.page-news .breadcrumb-sep {
  margin: 0 8px;
  color: var(--brown-dim);
}

.page-news .hero-copy {
  max-width: 680px;
}

.page-news .hero-kicker {
  display: inline-block;
  font-size: var(--fs-6);
  color: var(--gold-bright);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-left: 2px solid var(--gold-deep);
  padding-left: 12px;
  margin-bottom: 16px;
}

.page-news #page-h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4.6vw, 2.25rem);
  line-height: 1.25;
  margin: 0 0 18px;
  color: var(--white-warm);
  border-left: 4px solid var(--gold-deep);
  padding-left: 18px;
}

.page-news .hero-lead {
  font-size: var(--fs-4);
  line-height: 1.9;
  color: var(--gray-mist);
  margin: 0 0 24px;
  max-width: 600px;
}

.page-news .hero-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.page-news .hero-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 14px 6px 12px;
  font-size: var(--fs-6);
  color: var(--gray-mist);
  background: rgba(201, 169, 78, 0.06);
  border: 1px solid var(--brown-dim);
  clip-path: var(--cut-corner-sm);
}

.page-news .hero-chip strong {
  font-family: var(--font-heading);
  font-size: var(--fs-5);
  color: var(--gold-bright);
}

.page-news .hero-media {
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-news .hero-frame {
  max-width: 380px;
  width: 100%;
  aspect-ratio: 1 / 1;
  margin: 0;
  border: 1px solid var(--brown-dim);
  border-radius: 0;
  clip-path: var(--cut-corner);
  background: var(--panel-dark);
  transition: transform calc(var(--dur) * 1.4) var(--ease-out);
}

.page-news .hero-frame:hover {
  transform: rotate(-1deg);
}

.page-news .hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* --- 主题筛选 --- */
.page-news .topic-filterbar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-news .filter-btn {
  display: inline-block;
  padding: 8px 16px;
  font-size: var(--fs-6);
  color: var(--gray-mist);
  text-decoration: none;
  border: 1px solid var(--brown-dim);
  background: rgba(201, 169, 78, 0.04);
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
  letter-spacing: 0.05em;
  clip-path: var(--cut-corner-sm);
}

.page-news .filter-btn:hover {
  color: var(--gold-bright);
  border-color: var(--gold-deep);
  background: rgba(201, 169, 78, 0.12);
}

.page-news .filter-btn.is-active {
  color: var(--ink-black);
  background: var(--gold-gradient);
  border-color: transparent;
  font-weight: 600;
}

.page-news .filter-anchor {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* 筛选命中：重置默认激活，并高亮对应按钮 */
.page-news:has(#filter-rule:target) .filter-btn.is-active,
.page-news:has(#filter-history:target) .filter-btn.is-active,
.page-news:has(#filter-version:target) .filter-btn.is-active,
.page-news:has(#filter-guide:target) .filter-btn.is-active {
  color: var(--gray-mist);
  background: rgba(201, 169, 78, 0.04);
  border-color: var(--brown-dim);
  font-weight: 400;
}

.page-news:has(#filter-rule:target) .filter-btn[href="#filter-rule"],
.page-news:has(#filter-history:target) .filter-btn[href="#filter-history"],
.page-news:has(#filter-version:target) .filter-btn[href="#filter-version"],
.page-news:has(#filter-guide:target) .filter-btn[href="#filter-guide"] {
  color: var(--ink-black);
  background: var(--gold-gradient);
  border-color: transparent;
  font-weight: 600;
}

/* 筛选命中：仅显示对应主题 */
.page-news:has(#filter-rule:target) .update-item:not(.cat-rule),
.page-news:has(#filter-history:target) .update-item:not(.cat-history),
.page-news:has(#filter-version:target) .update-item:not(.cat-version),
.page-news:has(#filter-guide:target) .update-item:not(.cat-guide) {
  display: none;
}

/* --- 章节标题 --- */
.page-news .section-head {
  margin-bottom: 30px;
}

.page-news .section-title {
  font-family: var(--font-heading);
  font-size: var(--fs-2);
  color: var(--white-warm);
  border-left: 4px solid var(--gold-deep);
  padding-left: 16px;
  margin: 0 0 8px;
}

.page-news .section-lead {
  font-size: var(--fs-6);
  color: var(--gray-mist);
  margin: 0;
  line-height: 1.8;
}

/* --- 最新动态：时间轴 --- */
.page-news .update-feed {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 8px;
}

.page-news .update-feed::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold-deep), var(--brown-dim), transparent);
  transform: translateX(-50%);
}

.page-news .update-item {
  position: relative;
  margin-left: 26px;
}

.page-news .update-node {
  position: absolute;
  left: -20px;
  top: 28px;
  width: 12px;
  height: 12px;
  background: var(--gold-gradient);
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(201, 169, 78, 0.12), 0 0 16px rgba(201, 169, 78, 0.5);
  z-index: 1;
  transition: transform var(--dur) var(--ease-out);
}

.page-news .update-item:hover .update-node {
  transform: rotate(45deg) scale(1.2);
}

.page-news .update-card {
  background: var(--panel-dark);
  border: 1px solid rgba(201, 169, 78, 0.22);
  clip-path: var(--cut-corner-sm);
  transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

.page-news .update-card[open] {
  border-color: var(--gold-deep);
  box-shadow: 0 0 0 1px rgba(201, 169, 78, 0.3), 0 16px 40px rgba(0, 0, 0, 0.4);
}

.page-news .update-card summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px;
  transition: background var(--dur) var(--ease-out);
}

.page-news .update-card summary::-webkit-details-marker {
  display: none;
}

.page-news .update-card summary:hover {
  background: rgba(201, 169, 78, 0.03);
}

.page-news .update-copy {
  flex: 1;
  min-width: 0;
}

.page-news .update-tag {
  display: inline-block;
  font-size: var(--fs-6);
  letter-spacing: 0.1em;
  color: var(--gold-bright);
  background: rgba(201, 169, 78, 0.1);
  padding: 4px 10px;
  margin-bottom: 8px;
  clip-path: var(--cut-corner-sm);
}

.page-news .update-title {
  font-family: var(--font-heading);
  font-size: var(--fs-4);
  line-height: 1.6;
  margin: 0;
  color: var(--white-warm);
}

.page-news .update-more {
  display: inline-block;
  margin-top: 8px;
  font-size: var(--fs-6);
  color: var(--gray-mist);
  letter-spacing: 0.06em;
  position: relative;
}

.page-news .update-card[open] .update-more {
  visibility: hidden;
}

.page-news .update-card[open] .update-more::after {
  content: "收起摘要";
  visibility: visible;
  position: absolute;
  left: 0;
  top: 0;
  color: var(--gold-bright);
}

.page-news .update-body {
  border-top: 1px dashed var(--brown-dim);
  padding: 16px 18px 20px;
}

.page-news .update-body p {
  font-size: var(--fs-6);
  line-height: 1.9;
  color: var(--gray-mist);
  margin: 0 0 14px;
}

.page-news .update-link {
  display: inline-block;
  font-size: var(--fs-6);
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--brown-dim);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}

.page-news .update-link:hover {
  border-color: var(--gold-deep);
  color: var(--gold-deep);
}

.page-news .update-thumb {
  display: none;
}

/* --- 版本记录 --- */
.page-news .version-stage {
  position: relative;
  background: var(--panel-dark);
  border: 1px solid var(--brown-dim);
  clip-path: var(--cut-corner);
  padding: 28px 20px;
  overflow: hidden;
}

.page-news .version-figure {
  margin: 0 0 24px;
  border: 1px solid var(--brown-dim);
  border-radius: 0;
  background: #0d0d0d;
}

.page-news .version-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 400;
  object-fit: cover;
  display: block;
}

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

.page-news .version-card {
  background: rgba(0, 0, 0, 0.3);
  border-left: 3px solid var(--gold-deep);
  padding: 18px;
  transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}

.page-news .version-card:hover {
  background: rgba(201, 169, 78, 0.05);
  border-left-color: var(--gold-bright);
}

.page-news .version-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-3);
  color: var(--gold-deep);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.page-news .version-badge.gold {
  color: var(--gold-bright);
}

.page-news .version-card h3 {
  font-family: var(--font-heading);
  font-size: var(--fs-4);
  margin: 0 0 8px;
  color: var(--white-warm);
}

.page-news .version-card p {
  font-size: var(--fs-6);
  line-height: 1.8;
  color: var(--gray-mist);
  margin: 0;
}

/* --- 专题栏目 --- */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-news .topic-card {
  background: var(--panel-dark);
  border: 1px solid var(--brown-dim);
  clip-path: var(--cut-corner);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: transform var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

.page-news .topic-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-deep);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.page-news .topic-icon {
  width: 100%;
  max-width: 200px;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--brown-dim);
  background: #0d0d0d;
}

.page-news .topic-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-news .topic-no {
  display: inline-block;
  font-size: var(--fs-6);
  color: var(--gold-deep);
  letter-spacing: 0.2em;
}

.page-news .topic-body h3 {
  font-family: var(--font-heading);
  font-size: var(--fs-3);
  color: var(--white-warm);
  margin: 6px 0 10px;
}

.page-news .topic-body p {
  font-size: var(--fs-6);
  line-height: 1.9;
  color: var(--gray-mist);
  margin: 0 0 18px;
}

.page-news .topic-more {
  color: var(--gold-bright);
  text-decoration: none;
  font-size: var(--fs-6);
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--brown-dim);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}

.page-news .topic-more:hover {
  border-color: var(--gold-deep);
  color: var(--gold-deep);
}

/* --- 订阅提示 --- */
.page-news .subscribe-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  background:
    linear-gradient(135deg, rgba(201, 169, 78, 0.1), transparent 45%),
    var(--panel-dark);
  border: 1px solid var(--gold-deep);
  clip-path: var(--cut-corner);
  padding: 28px 20px;
  overflow: hidden;
}

.page-news .subscribe-kicker {
  display: inline-block;
  font-size: var(--fs-6);
  color: var(--red-deep);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-news .subscribe-copy h2 {
  font-family: var(--font-heading);
  font-size: var(--fs-2);
  color: var(--white-warm);
  margin: 0 0 14px;
}

.page-news .subscribe-copy p {
  font-size: var(--fs-6);
  line-height: 1.9;
  color: var(--gray-mist);
  max-width: 560px;
  margin: 0 0 22px;
}

.page-news .subscribe-media {
  margin: 20px 0 0;
  border: 1px solid var(--brown-dim);
  clip-path: var(--cut-corner-sm);
  overflow: hidden;
  background: #0d0d0d;
}

.page-news .subscribe-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 200;
  object-fit: cover;
  display: block;
}

/* --- 继续查阅 --- */
.page-news .context-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--brown-dim);
  border: 1px solid var(--brown-dim);
}

.page-news .context-link {
  background: var(--ink-black);
  color: var(--white-warm);
  text-decoration: none;
  padding: 20px 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}

.page-news .context-link:hover {
  background: var(--panel-dark);
  color: var(--gold-bright);
}

.page-news .context-index {
  font-family: var(--font-heading);
  font-size: var(--fs-6);
  color: var(--gold-deep);
}

.page-news .context-text {
  flex: 1;
  font-size: var(--fs-5);
  line-height: 1.6;
}

.page-news .context-arrow {
  color: var(--gold-deep);
  transition: transform var(--dur) var(--ease-out);
}

.page-news .context-link:hover .context-arrow {
  transform: translateX(4px);
}

/* --- 响应式增强 --- */
@media (min-width: 640px) {
  .page-news .update-thumb {
    display: block;
    width: 120px;
    height: 120px;
    object-fit: cover;
    flex-shrink: 0;
    opacity: 0.85;
    border: 1px solid var(--brown-dim);
    transition: opacity var(--dur) var(--ease-out);
  }

  .page-news .update-card:hover .update-thumb {
    opacity: 1;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero-inner {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
    gap: 48px;
  }

  .page-news .hero-media {
    justify-self: end;
  }

  .page-news .hero-frame {
    max-width: 380px;
  }

  .page-news .update-feed {
    max-width: 920px;
  }

  .page-news .version-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-news .subscribe-panel {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    padding: 36px 40px;
    gap: 32px;
  }

  .page-news .subscribe-media {
    margin: 0;
  }

  .page-news .context-links {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-news .context-link {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
  }
}