/* ========== 赛场情报页专属样式 .page-news ========== */
.page-news {
  --color-primary: #FF4500;
  --color-secondary: #0A1F44;
  --color-accent: #FFD700;
  --color-bg-dark: #0D0D0D;
  --color-bg-light: #1A1A2E;
  --color-surface: #1C1C3A;
  --color-text: #FFFFFF;
  --color-text-secondary: #B0B0C0;
  --color-border: rgba(255, 69, 0, 0.4);
  --color-success: #00FF7F;
  --color-error: #FF0040;
  --font-heading: "Bebas Neue", Impact, "Arial Black", sans-serif;
  --font-body: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-data: "Bebas Neue", "Courier New", monospace;
  --container-max: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-neon: 0 0 12px rgba(255, 69, 0, 0.3), 0 0 24px rgba(255, 69, 0, 0.1);
  --timeline-dot-size: 18px;
  --sidebar-width: 280px;
  position: relative;
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--color-bg-dark);
}

/* ---- 容器 ---- */
.page-news .container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- 全局卡片复用 ---- */
.page-news .card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-neon);
  transition: border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
}

.page-news .card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(255, 69, 0, 0.4), 0 0 40px rgba(255, 69, 0, 0.15);
}

.page-news .section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 0.2em;
  line-height: 1.1;
}

.page-news .divider-neon {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  margin-top: 12px;
  box-shadow: 0 0 10px rgba(255, 69, 0, 0.5);
}

.page-news .btn--outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: transparent;
  border: 1.5px solid var(--color-primary);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition);
}

.page-news .btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 16px rgba(255, 69, 0, 0.5);
}

.page-news .tag {
  display: inline-block;
  padding: 2px 12px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 20px;
  background: rgba(255, 69, 0, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(255, 69, 0, 0.3);
}

.page-news .tag--live {
  background: rgba(0, 255, 127, 0.12);
  color: var(--color-success);
  border-color: rgba(0, 255, 127, 0.3);
}

/* ---- 页面顶部横幅 ---- */
.page-news__hero {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 0 40px;
  overflow: hidden;
}

.page-news__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}

.page-news__hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(13, 13, 13, 0.88) 30%, rgba(26, 26, 46, 0.7) 70%, rgba(13, 13, 13, 0.9) 100%);
}

.page-news__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.page-news__breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 0.85rem;
  font-weight: 500;
}

.page-news__breadcrumb-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.page-news__breadcrumb-link:hover {
  color: var(--color-primary);
}

.page-news__breadcrumb-sep {
  color: var(--color-text-secondary);
  opacity: 0.5;
}

.page-news__breadcrumb-current {
  color: var(--color-accent);
}

.page-news__hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 10vw, 6rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  text-shadow: 0 0 30px rgba(255, 69, 0, 0.4), 0 0 60px rgba(255, 69, 0, 0.15);
  margin: 0 0 12px;
  line-height: 1;
}

.page-news__hero-sub {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--color-text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin: 0 0 16px;
  font-weight: 300;
}

.page-news__hero-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.page-news__hero-divider {
  color: var(--color-primary);
  opacity: 0.5;
}

.page-news__hero-stat {
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

/* ---- 通用节点头部 ---- */
.page-news__section-header {
  text-align: center;
  margin-bottom: 40px;
  padding-top: 20px;
}

.page-news__section-desc {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 8px auto 0;
  line-height: 1.5;
}

.page-news__divider {
  margin: 16px auto 0;
}

/* ---- 时间轴区域 ---- */
.page-news__timeline-section {
  padding: 60px 0 40px;
  position: relative;
}

.page-news__timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: relative;
  padding-left: 40px;
}

/* 时间轴垂直线（通过伪元素实现） */
.page-news__timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent), var(--color-primary));
  box-shadow: 0 0 8px rgba(255, 69, 0, 0.4);
  opacity: 0.6;
}

/* 每个条目 */
.page-news__timeline-item {
  display: flex;
  flex-direction: column;
  position: relative;
  gap: 12px;
}

/* 时间标记点 */
.page-news__timeline-marker {
  position: absolute;
  left: -40px;
  top: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.page-news__timeline-dot {
  width: var(--timeline-dot-size);
  height: var(--timeline-dot-size);
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg-dark);
  box-shadow: 0 0 12px rgba(255, 69, 0, 0.6);
  flex-shrink: 0;
}

.page-news__timeline-line {
  display: none;
}

/* 左侧时间戳 */
.page-news__timeline-left {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 0;
  margin-bottom: 4px;
}

.page-news__timeline-time {
  font-family: var(--font-data);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

.page-news__timeline-tag {
  font-size: 0.65rem;
}

/* 卡片 */
.page-news__timeline-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  transition: all var(--transition);
}

.page-news__card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid rgba(255, 69, 0, 0.15);
}

.page-news__card-body {
  padding: 18px 20px 16px;
}

.page-news__card-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin: 0 0 8px;
  line-height: 1.2;
}

.page-news__card-text {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  margin: 0 0 14px;
  line-height: 1.6;
}

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

.page-news__card-tag {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 2px 10px;
  background: rgba(255, 215, 0, 0.1);
  border-radius: 12px;
}

/* 展开内容 */
.page-news__expand-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  padding: 0 20px;
  background: rgba(26, 26, 46, 0.6);
  border-left: 2px solid var(--color-primary);
  border-radius: 0 0 8px 8px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-news__expand-content[aria-hidden="false"] {
  max-height: 400px;
  padding: 16px 20px;
  opacity: 1;
}

/* ---- 行业观察区域 ---- */
.page-news__insights-section {
  padding: 60px 0;
  background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-light) 100%);
  position: relative;
}

.page-news__insights-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.3;
}

.page-news__insights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-news__insight-card {
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), border-color var(--transition);
}

.page-news__insight-card:hover {
  transform: translateY(-4px);
}

.page-news__insight-img-wrap {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

.page-news__insight-card:hover .page-news__insight-img {
  transform: scale(1.03);
}

.page-news__insight-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 14px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--color-primary);
  color: #fff;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(255, 69, 0, 0.5);
}

.page-news__insight-body {
  padding: 20px 22px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page-news__insight-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin: 0 0 10px;
  line-height: 1.25;
}

.page-news__insight-text {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  margin: 0 0 16px;
  line-height: 1.7;
  flex: 1;
}

.page-news__insight-footer {
  margin-top: auto;
}

.page-news__insight-link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.page-news__insight-link:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ---- 数据解读案例 ---- */
.page-news__cases-section {
  padding: 60px 0 80px;
}

.page-news__cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-news__case-card {
  display: flex;
  flex-direction: column;
  padding: 28px 24px 24px;
  position: relative;
  transition: transform var(--transition);
}

.page-news__case-card:hover {
  transform: translateX(4px);
}

.page-news__case-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--color-primary);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.page-news__case-content {
  flex: 1;
}

.page-news__case-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin: 0 0 10px;
  line-height: 1.2;
}

.page-news__case-text {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  margin: 0 0 14px;
  line-height: 1.7;
}

.page-news__case-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news__case-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.page-news__case-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.page-news__case-img-wrap {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 69, 0, 0.2);
}

.page-news__case-img {
  width: 100%;
  height: auto;
  max-height: 240px;
  object-fit: cover;
  display: block;
}

/* ---- 侧边栏 ---- */
.page-news__sidebar {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  align-items: flex-start;
}

.page-news__sidebar-toggle {
  writing-mode: vertical-rl;
  padding: 14px 8px;
  border-radius: 0 6px 6px 0;
  border-left: none;
  background: var(--color-surface);
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition);
  border: 1px solid var(--color-border);
  border-left: none;
}

.page-news__sidebar-toggle:hover {
  background: var(--color-primary);
  color: #fff;
}

.page-news__sidebar-toggle-icon {
  font-size: 1.1rem;
}

.page-news__sidebar-toggle-text {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
}

.page-news__sidebar-panel {
  position: absolute;
  right: 0;
  top: 0;
  width: var(--sidebar-width);
  max-width: calc(100vw - 60px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-right: none;
  border-radius: 8px 0 0 8px;
  padding: 20px 18px;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.5);
  transform: translateX(calc(100% + 10px));
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.page-news__sidebar[data-open="true"] .page-news__sidebar-panel {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

.page-news__sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 69, 0, 0.2);
}

.page-news__sidebar-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin: 0;
  text-transform: uppercase;
}

.page-news__sidebar-close {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}

.page-news__sidebar-close:hover {
  color: var(--color-primary);
  background: rgba(255, 69, 0, 0.1);
}

.page-news__sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news__sidebar-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  border-radius: 6px;
  transition: background var(--transition);
}

.page-news__sidebar-item:hover {
  background: rgba(255, 69, 0, 0.08);
}

.page-news__sidebar-link {
  font-size: 0.85rem;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
  flex: 1;
}

.page-news__sidebar-link:hover {
  color: var(--color-primary);
}

.page-news__sidebar-meta {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  opacity: 0.7;
  margin-left: 8px;
  white-space: nowrap;
}

/* ---- 滚动显现动画（渐进增强） ---- */
@media (prefers-reduced-motion: no-preference) {
  .page-news [data-reveal] {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  .page-news [data-reveal="fade-in"] {
    transform: none;
  }

  .page-news [data-reveal="slide-left"] {
    transform: translateX(-30px);
  }

  .page-news [data-reveal="zoom-in"] {
    transform: scale(0.95);
  }

  .page-news [data-reveal="flip-up"] {
    transform: perspective(600px) rotateX(6deg) translateY(20px);
  }

  .page-news [data-revealed="true"] {
    opacity: 1;
    transform: translateY(0) scale(1) translateX(0) rotateX(0);
  }

  /* 错峰延迟：每个条目依次出现 */
  .page-news__timeline-item:nth-child(1) [data-reveal] { transition-delay: 0.05s; }
  .page-news__timeline-item:nth-child(2) [data-reveal] { transition-delay: 0.15s; }
  .page-news__timeline-item:nth-child(3) [data-reveal] { transition-delay: 0.25s; }

  .page-news__insight-card:nth-child(1) { transition-delay: 0.1s; }
  .page-news__insight-card:nth-child(2) { transition-delay: 0.2s; }

  .page-news__case-card:nth-child(1) { transition-delay: 0.1s; }
  .page-news__case-card:nth-child(2) { transition-delay: 0.2s; }
}

@media (prefers-reduced-motion: reduce) {
  .page-news [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ---- 桌面端布局 (≥768px) ---- */
@media (min-width: 768px) {
  .page-news__hero {
    min-height: 50vh;
    padding: 80px 0 60px;
  }

  .page-news__hero-title {
    font-size: clamp(4rem, 8vw, 7rem);
  }

  /* 时间轴：左侧时间戳 + 右侧卡片 */
  .page-news__timeline {
    padding-left: 120px;
  }

  .page-news__timeline::before {
    left: 60px;
  }

  .page-news__timeline-marker {
    left: -120px;
    top: 12px;
  }

  .page-news__timeline-left {
    position: absolute;
    left: -120px;
    top: 0;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    width: 100px;
    text-align: right;
    padding-top: 6px;
  }

  .page-news__timeline-time {
    font-size: 1.3rem;
  }

  .page-news__timeline-card {
    flex-direction: row;
  }

  .page-news__card-img {
    width: 260px;
    height: 100%;
    min-height: 180px;
    max-height: 220px;
    border-bottom: none;
    border-right: 1px solid rgba(255, 69, 0, 0.15);
    flex-shrink: 0;
  }

  .page-news__card-body {
    padding: 20px 24px;
    flex: 1;
  }

  .page-news__card-title {
    font-size: 1.5rem;
  }

  /* 行业观察网格 2 列 */
  .page-news__insights-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-news__insight-img-wrap {
    height: 220px;
  }

  /* 案例网格 2 列 */
  .page-news__cases-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-news__case-card {
    padding: 32px 28px 28px;
  }

  .page-news__case-num {
    font-size: 3.5rem;
  }
}

/* ---- 大桌面端 (≥1024px) ---- */
@media (min-width: 1024px) {
  .page-news__hero {
    min-height: 55vh;
    padding: 100px 0 80px;
  }

  .page-news__hero-title {
    font-size: clamp(5rem, 7vw, 8rem);
  }

  .page-news__timeline {
    padding-left: 160px;
  }

  .page-news__timeline::before {
    left: 80px;
  }

  .page-news__timeline-marker {
    left: -160px;
  }

  .page-news__timeline-left {
    left: -160px;
    width: 130px;
  }

  .page-news__card-img {
    width: 300px;
    max-height: 240px;
  }

  .page-news__insight-img-wrap {
    height: 250px;
  }

  .page-news__cases-grid {
    gap: 40px;
  }

  /* 侧边栏默认展开（大屏可配置） */
  .page-news__sidebar-panel {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
    position: relative;
    border-radius: 8px 0 0 8px;
  }

  .page-news__sidebar-toggle {
    display: flex;
  }
}

/* ---- 窄屏安全（防止溢出） ---- */
@media (max-width: 480px) {
  .page-news .container {
    padding: 0 14px;
  }

  .page-news__hero {
    min-height: 38vh;
    padding: 40px 0 30px;
  }

  .page-news__hero-title {
    font-size: 2.6rem;
  }

  .page-news__timeline {
    padding-left: 32px;
  }

  .page-news__timeline::before {
    left: 14px;
  }

  .page-news__timeline-marker {
    left: -32px;
  }

  .page-news__timeline-left {
    flex-wrap: wrap;
    gap: 6px;
  }

  .page-news__timeline-time {
    font-size: 0.95rem;
  }

  .page-news__card-img {
    height: 160px;
  }

  .page-news__insight-img-wrap {
    height: 170px;
  }

  .page-news__sidebar-panel {
    max-width: calc(100vw - 50px);
    padding: 16px 14px;
  }

  .page-news__sidebar-toggle {
    padding: 10px 6px;
  }

  .page-news__case-card {
    padding: 20px 16px 18px;
  }

  .page-news__case-num {
    font-size: 2.2rem;
  }
}