/* ============ 行业观察 页面专属样式 ============ */
.page-news {
  --page-news-deep: #081a38;
  --page-news-soft: #eef1f6;
  background: var(--color-bg);
  color: var(--color-text);
}

.page-news [id] {
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.page-news a:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- 首屏标题面板 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 38px;
  background: linear-gradient(140deg, var(--page-news-deep) 0%, var(--color-primary) 48%, var(--color-primary-light) 100%);
  color: #ffffff;
  border-bottom: 4px solid var(--color-accent);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 36px 36px;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 320px;
  height: 320px;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.38) 0%, transparent 68%);
  border-radius: 50%;
}

.page-news .news-hero .ya-container {
  position: relative;
  z-index: 1;
}

.page-news .hero-breadcrumb {
  margin-bottom: 18px;
  font-size: 13px;
}

.page-news .hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: color var(--transition);
}

.page-news .hero-breadcrumb a:hover {
  color: #ffffff;
}

.page-news .hero-breadcrumb .sep {
  color: rgba(255, 255, 255, 0.4);
  margin: 0 4px;
}

.page-news .hero-breadcrumb .current {
  color: #ffffff;
}

.page-news .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-news .hero-kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--color-accent);
}

.page-news .news-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(27px, 5vw, 42px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.015em;
  max-width: 15em;
}

.page-news .news-hero-lead {
  margin: 0;
  max-width: 660px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.86);
}

.page-news .news-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-news .hero-stat {
  flex: 1 1 100%;
  max-width: 100%;
  min-width: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.page-news .hero-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: #ffffff;
}

.page-news .hero-unit {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.3;
  color: rgba(255, 255, 255, 0.72);
}

@media (min-width: 600px) {
  .page-news .news-hero {
    padding: 44px 0 52px;
  }

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

  .page-news .hero-stat {
    max-width: none;
  }

  .page-news .hero-num {
    font-size: 26px;
  }
}

/* ---------- 通用章节头部 ---------- */
.page-news .section-heading {
  margin-bottom: 22px;
}

.page-news .section-title {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.page-news .section-title::before {
  content: "// ";
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 400;
}

.page-news .section-lead {
  margin: 8px 0 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* ---------- 热点标签与主题分组 ---------- */
.page-news .news-topics {
  padding: 40px 0 44px;
}

.page-news .topic-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 22px;
}

.page-news .topic-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.page-news .topic-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.65;
}

.page-news .topic-pill:hover,
.page-news .topic-pill:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.page-news .pill-data {
  background: #dbeafe;
  color: #1e40af;
}

.page-news .pill-data:hover {
  background: #bfdbfe;
}

.page-news .pill-top {
  background: #fef3c7;
  color: #b45309;
}

.page-news .pill-top:hover {
  background: #fde68a;
}

.page-news .pill-transfer {
  background: #d1fae5;
  color: #047857;
}

.page-news .pill-transfer:hover {
  background: #a7f3d0;
}

.page-news .pill-league {
  background: #ede9fe;
  color: #6d28d9;
}

.page-news .pill-league:hover {
  background: #ddd6fe;
}

.page-news .pill-platform {
  background: #ffedd5;
  color: #c2410c;
}

.page-news .pill-platform:hover {
  background: #fed7aa;
}

.page-news .topic-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-news .topic-group {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.page-news .topic-group:hover {
  box-shadow: var(--shadow-md);
}

.page-news .topic-group:target {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.page-news .topic-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-news .topic-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

.page-news .topic-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

.page-news .topic-item {
  display: block;
  margin-top: 10px;
  padding: 12px 14px;
  background: var(--color-bg);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--transition), transform var(--transition);
}

.page-news .topic-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.page-news .topic-item span {
  display: block;
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.page-news .topic-item:hover,
.page-news .topic-item:focus-visible {
  background: var(--color-accent-soft);
  transform: translateX(4px);
}

@media (min-width: 900px) {
  .page-news .topic-groups {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-news .topic-group {
    grid-column: span 2;
  }

  .page-news .topic-group:nth-child(4) {
    grid-column: span 4;
  }

  .page-news .topic-group:nth-child(5) {
    grid-column: span 2;
  }
}

@media (min-width: 1080px) {
  .page-news .topic-group-wide .topic-group-header {
    margin-bottom: 4px;
  }

  .page-news .topic-group-wide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .page-news .topic-group-wide .topic-group-header {
    grid-column: 1 / -1;
  }

  .page-news .topic-group-wide .topic-item {
    margin-top: 0;
  }
}

/* ---------- 专题封面 ---------- */
.page-news .topic-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-top: 20px;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.page-news .topic-feature-media {
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--page-news-deep);
}

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

.page-news .topic-feature-body {
  padding: 22px;
}

.page-news .topic-feature-body h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.25;
  color: #ffffff;
}

.page-news .topic-feature-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.8);
}

@media (min-width: 768px) {
  .page-news .topic-feature {
    grid-template-columns: 340px 1fr;
  }

  .page-news .topic-feature-media {
    aspect-ratio: auto;
  }

  .page-news .topic-feature-body {
    padding: 26px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

/* ---------- 最新文章主列表 ---------- */
.page-news .news-listed {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 44px 0;
}

.page-news .news-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-news .featured-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-news .featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.page-news .featured-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--page-news-deep);
}

.page-news .featured-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.page-news .featured-card:hover .featured-media img {
  transform: scale(1.03);
}

.page-news .featured-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 31, 68, 0.28), transparent 58%);
}

.page-news .featured-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

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

.page-news .card-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-secondary);
}

.page-news .featured-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.28;
  color: var(--color-primary);
}

.page-news .featured-excerpt {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.page-news .mini-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.page-news .mini-link::after {
  content: "→";
  transition: transform var(--transition);
}

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

@media (min-width: 720px) {
  .page-news .news-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-news .featured-wide {
    grid-column: span 6;
  }

  .page-news .featured-tall {
    grid-column: span 3;
  }

  .page-news .mini-card {
    grid-column: span 3;
  }
}

@media (min-width: 1080px) {
  .page-news .news-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-news .featured-wide {
    grid-column: span 7;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
  }

  .page-news .featured-wide .featured-media {
    aspect-ratio: auto;
    height: 100%;
    min-height: 100%;
  }

  .page-news .featured-wide .featured-content {
    padding: 28px;
    justify-content: center;
  }

  .page-news .featured-tall {
    grid-column: span 5;
  }

  .page-news .mini-card {
    grid-column: span 3;
  }
}

/* ---------- 迷你文章卡片 ---------- */
.page-news .mini-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 18px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-news .mini-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.page-news .mini-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.page-news .mini-card:hover::before {
  opacity: 1;
}

.page-news .mini-tag {
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-news .mini-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
}

.page-news .mini-excerpt {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--color-text-secondary);
}

/* ---------- 更新日志时间轴 ---------- */
.page-news .news-changelog {
  padding: 46px 0 52px;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--page-news-soft) 100%);
}

.page-news .changelog-timeline {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  position: relative;
}

.page-news .changelog-timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 74%, transparent 100%);
  opacity: 0.55;
}

.page-news .changelog-item {
  position: relative;
  padding-left: 48px;
  margin-bottom: 20px;
}

.page-news .changelog-item:last-child {
  margin-bottom: 0;
}

.page-news .changelog-node {
  position: absolute;
  left: 0;
  top: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 1px var(--color-border);
  z-index: 1;
}

.page-news .changelog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.page-news .changelog-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.page-news .changelog-version {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 10px;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-news .changelog-card h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
}

.page-news .changelog-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.page-news .changelog-more {
  margin-top: 12px;
}

.page-news .changelog-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  transition: background-color var(--transition), border-color var(--transition);
}

.page-news .changelog-more summary::-webkit-details-marker {
  display: none;
}

.page-news .changelog-more summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.page-news .changelog-more summary:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.page-news .changelog-more[open] summary::before {
  transform: rotate(45deg);
}

.page-news .changelog-more-body {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}

.page-news .changelog-more-body p {
  margin-bottom: 12px;
}

.page-news .changelog-more-body img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .page-news .changelog-card {
    padding: 24px;
  }

  .page-news .changelog-item {
    padding-left: 56px;
  }

  .page-news .changelog-timeline::before {
    left: 17px;
  }

  .page-news .changelog-node {
    width: 36px;
    height: 36px;
    font-size: 12px;
  }
}