/* roulang page: index */
:root {
      --bg-dark: #0A0D12;
      --bg-light: #F7F9FC;
      --bg-card-dark: #111622;
      --bg-card-light: #FFFFFF;
      --primary-green: #00E599;
      --primary-orange: #FF5C00;
      --border-dark: #232B3E;
      --border-light: #E2E8F0;
      --text-dark: #0A0D12;
      --text-light: #F7F9FC;
      --text-muted: #5E6778;
      --text-muted-dark: #8E9AA8;
      --font-mono: "JetBrains Mono", "Roboto Mono", Consolas, Menlo, monospace;
      --font-main: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: var(--font-main);
      background-color: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 13, 18, 0.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-dark);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-light);
      letter-spacing: -0.5px;
    }
    .brand-logo .pulse-dot {
      width: 10px;
      height: 10px;
      background-color: var(--primary-green);
      border-radius: 50%;
      box-shadow: 0 0 12px var(--primary-green);
      animation: pulse 1.8s infinite;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted-dark);
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary-green);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
    }
    .btn-primary {
      background-color: var(--primary-green);
      color: var(--bg-dark);
    }
    .btn-primary:hover {
      background-color: #05ffaa;
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(0, 229, 153, 0.35);
    }
    .btn-outline {
      background: transparent;
      color: var(--text-light);
      border-color: var(--border-dark);
    }
    .btn-outline:hover {
      border-color: var(--primary-green);
      color: var(--primary-green);
    }

    /* 板块通用规范 */
    .section-spacing {
      padding: 96px 0;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: var(--text-light);
    }
    .section-light {
      background-color: var(--bg-light);
      color: var(--text-dark);
    }
    .section-header {
      margin-bottom: 56px;
    }
    .section-tag {
      display: inline-block;
      font-family: var(--font-mono);
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
    }
    .tag-green {
      background: rgba(0, 229, 153, 0.12);
      color: var(--primary-green);
      border: 1px solid rgba(0, 229, 153, 0.25);
    }
    .tag-orange {
      background: rgba(255, 92, 0, 0.12);
      color: var(--primary-orange);
      border: 1px solid rgba(255, 92, 0, 0.25);
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 18px;
    }
    .section-desc {
      font-size: 1.05rem;
      max-width: 780px;
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: var(--text-muted-dark);
    }
    .section-light .section-desc {
      color: var(--text-muted);
    }

    /* 1. Hero 沉浸暗底 */
    .hero-cinematic {
      position: relative;
      min-height: 85vh;
      display: flex;
      align-items: center;
      background: linear-gradient(180deg, rgba(10, 13, 18, 0.65) 0%, rgba(10, 13, 18, 0.98) 100%),
                  url('/assets/images/ef1b3d9a227d1217.jpg') center/cover no-repeat;
      color: var(--text-light);
      border-bottom: 1px solid var(--border-dark);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 60px;
      align-items: center;
    }
    .hero-title {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.15;
      margin: 20px 0 24px;
      letter-spacing: -1px;
    }
    .hero-title span {
      color: var(--primary-green);
    }
    .hero-summary {
      font-size: 1.15rem;
      line-height: 1.8;
      color: var(--text-muted-dark);
      margin-bottom: 36px;
    }
    .hero-meta-bar {
      display: flex;
      gap: 20px;
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid var(--border-dark);
    }
    .hero-meta-item {
      display: flex;
      flex-direction: column;
    }
    .meta-value {
      font-family: var(--font-mono);
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--primary-green);
    }
    .meta-label {
      font-size: 0.85rem;
      color: var(--text-muted-dark);
    }
    .hero-poster-card {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      box-shadow: 0 24px 50px rgba(0, 0, 0, 0.6);
      background-color: var(--bg-card-dark);
    }
    .hero-poster-card img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      filter: brightness(0.85);
      transition: var(--transition);
    }
    .hero-poster-card:hover img {
      filter: brightness(1);
      transform: scale(1.02);
    }
    .poster-badge {
      position: absolute;
      top: 16px;
      right: 16px;
      background: rgba(255, 92, 0, 0.9);
      color: #fff;
      padding: 6px 14px;
      font-family: var(--font-mono);
      font-size: 0.78rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      backdrop-filter: blur(8px);
    }
    .poster-foot {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 24px;
      background: linear-gradient(0deg, rgba(10,13,18,0.95) 0%, transparent 100%);
    }

    /* 2. 品牌发展历程 (品牌故事) */
    .story-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      padding: 28px;
      border-radius: var(--radius-md);
      position: relative;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
    }
    .story-year {
      font-family: var(--font-mono);
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--primary-orange);
      margin-bottom: 12px;
    }
    .story-head {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .story-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 赛事系列直达 (系列导航) */
    .series-nav-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }
    .series-tab {
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      padding: 20px 18px;
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .series-tab:hover {
      border-color: var(--primary-green);
      background: #171d2b;
    }
    .series-name {
      color: var(--text-light);
      font-weight: 700;
      font-size: 1.05rem;
    }
    .series-count {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      color: var(--primary-green);
    }

    /* 4. 爆款赛事数据网格 (爆款网格) */
    .fixture-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .fixture-card {
      background: var(--bg-card-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
      display: flex;
      flex-direction: column;
    }
    .fixture-thumb {
      height: 190px;
      position: relative;
      overflow: hidden;
    }
    .fixture-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .fixture-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .fixture-league {
      font-size: 0.82rem;
      color: var(--primary-orange);
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .fixture-match {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .fixture-stats {
      background: var(--bg-light);
      padding: 12px;
      border-radius: var(--radius-sm);
      display: flex;
      justify-content: space-around;
      font-family: var(--font-mono);
      font-size: 0.85rem;
      margin-bottom: 16px;
    }

    /* 5. 核心服务矩阵 (能力矩阵) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 32px;
      transition: var(--transition);
    }
    .matrix-card:hover {
      border-color: var(--primary-green);
      transform: translateY(-4px);
    }
    .matrix-icon {
      width: 48px;
      height: 48px;
      background: rgba(0, 229, 153, 0.1);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font-mono);
      font-size: 1.25rem;
      color: var(--primary-green);
      margin-bottom: 20px;
      border: 1px solid rgba(0, 229, 153, 0.2);
    }
    .matrix-title {
      font-size: 1.25rem;
      color: var(--text-light);
      font-weight: 700;
      margin-bottom: 14px;
    }
    .matrix-desc {
      font-size: 0.92rem;
      color: var(--text-muted-dark);
      line-height: 1.7;
    }

    /* 6. 数字孪生赛场展示 (场景演示) */
    .twin-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .twin-visual {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .twin-steps {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .twin-step-item {
      display: flex;
      gap: 18px;
      padding: 18px;
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
    }
    .step-num {
      font-family: var(--font-mono);
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--primary-green);
    }
    .step-content h4 {
      color: var(--text-light);
      font-size: 1.05rem;
      margin-bottom: 6px;
    }
    .step-content p {
      font-size: 0.88rem;
      color: var(--text-muted-dark);
      line-height: 1.6;
    }

    /* 7. 会员权益与接口方案 (会员权益) */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .tier-card {
      background: var(--bg-card-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .tier-featured {
      border-color: var(--primary-green);
      box-shadow: 0 10px 30px rgba(0, 229, 153, 0.12);
      transform: scale(1.03);
    }
    .tier-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-green);
      color: var(--bg-dark);
      font-size: 0.78rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 20px;
    }
    .tier-name {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .tier-price {
      font-family: var(--font-mono);
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 16px;
    }
    .tier-features {
      list-style: none;
      margin: 24px 0 32px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }
    .tier-features li::before {
      content: "✓";
      color: var(--primary-green);
      font-weight: bold;
      margin-right: 10px;
    }

    /* 8. 赛事即时资讯与前沿动态 (资讯) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-img {
      height: 200px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .news-card:hover .news-img img {
      transform: scale(1.05);
    }
    .news-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      color: var(--primary-green);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-light);
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .news-text {
      font-size: 0.9rem;
      color: var(--text-muted-dark);
      line-height: 1.6;
    }

    /* 9. 全球数据网关排期表 (内容日历) */
    .calendar-wrap {
      background: var(--bg-card-light);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .calendar-row {
      display: grid;
      grid-template-columns: 140px 180px 1fr 140px;
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-light);
      align-items: center;
      font-size: 0.95rem;
    }
    .calendar-row:last-child {
      border-bottom: none;
    }
    .calendar-time {
      font-family: var(--font-mono);
      font-weight: 700;
      color: var(--primary-orange);
    }
    .calendar-tag {
      font-size: 0.82rem;
      background: var(--bg-light);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      display: inline-block;
      width: fit-content;
    }

    /* 10. 高可靠服务保障条 (保障条) */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      padding: 32px;
      border-radius: var(--radius-md);
    }
    .guarantee-item {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .guarantee-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-light);
    }
    .guarantee-desc {
      font-size: 0.88rem;
      color: var(--text-muted-dark);
      line-height: 1.5;
    }

    /* 11. 行业客户合作口碑 (口碑) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .quote-card {
      background: var(--bg-card-light);
      border: 1px solid var(--border-light);
      padding: 32px;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }
    .quote-content {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .quote-author {
      font-weight: 700;
      font-size: 1rem;
      color: var(--text-dark);
    }
    .quote-role {
      font-size: 0.82rem;
      color: var(--text-muted);
      font-family: var(--font-mono);
    }

    /* 12. 统一数据接入终端 (进店入口) */
    .entry-banner {
      background: linear-gradient(135deg, #111622 0%, #1e2638 100%);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 40px;
    }
    .entry-info h3 {
      font-size: 2rem;
      color: var(--text-light);
      margin-bottom: 14px;
    }
    .entry-info p {
      color: var(--text-muted-dark);
      max-width: 640px;
      font-size: 1.05rem;
      line-height: 1.6;
    }

    /* 页脚 */
    .site-footer {
      background: #06080B;
      color: var(--text-muted-dark);
      padding: 72px 0 36px;
      border-top: 1px solid var(--border-dark);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 48px;
    }
    .footer-brand h4 {
      color: var(--text-light);
      font-size: 1.25rem;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.7;
      max-width: 360px;
    }
    .footer-col h5 {
      color: var(--text-light);
      font-size: 0.98rem;
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: var(--primary-green);
    }
    .footer-bottom {
      padding-top: 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.82rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-family: var(--font-mono);
    }

    @keyframes pulse {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 229, 153, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 229, 153, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 229, 153, 0); }
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .story-timeline { grid-template-columns: repeat(2, 1fr); }
      .series-nav-grid { grid-template-columns: repeat(3, 1fr); }
      .fixture-grid { grid-template-columns: repeat(2, 1fr); }
      .matrix-grid { grid-template-columns: repeat(2, 1fr); }
      .twin-split { grid-template-columns: 1fr; }
      .tier-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .guarantee-bar { grid-template-columns: repeat(2, 1fr); }
      .testimonials-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .section-spacing { padding: 64px 0; }
      .hero-title { font-size: 2.2rem; }
      .main-nav { display: none; }
      .story-timeline { grid-template-columns: 1fr; }
      .series-nav-grid { grid-template-columns: repeat(2, 1fr); }
      .fixture-grid { grid-template-columns: 1fr; }
      .matrix-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .guarantee-bar { grid-template-columns: 1fr; }
      .calendar-row { grid-template-columns: 1fr; gap: 8px; }
      .entry-banner { flex-direction: column; align-items: flex-start; padding: 36px 24px; }
      .footer-grid { grid-template-columns: 1fr; gap: 32px; }
      .footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
    }