/* roulang page: index */
:root {
      --bg-dark: #0F141C;
      --bg-dark-secondary: #18202C;
      --bg-light: #F8FAFC;
      --bg-light-alt: #F1F5F9;
      --electric-cyan: #00F2FE;
      --hyper-green: #10B981;
      --text-white: #FFFFFF;
      --text-gray: #94A3B8;
      --text-dark: #0F172A;
      --text-muted: #475569;
      --border-dark: rgba(255, 255, 255, 0.08);
      --border-light: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);
      --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Segoe UI", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      background-color: var(--bg-light);
      color: var(--text-dark);
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button, input, select, textarea {
      font-family: inherit;
      outline: none;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    .font-num {
      font-variant-numeric: tabular-nums;
      font-feature-settings: "tnum";
    }

    /* 顶部状态条 */
    .topbar {
      background-color: #0B0E14;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      padding: 7px 0;
      font-size: 13px;
      color: var(--text-gray);
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-left, .topbar-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .pulse-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #34D399;
      font-weight: 500;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.8); }
      70% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
      100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* 主导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 20, 28, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-dark);
      transition: var(--transition-fast);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--text-white);
      font-weight: 800;
      font-size: 21px;
      letter-spacing: -0.5px;
    }
    .logo-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--electric-cyan), var(--hyper-green));
      color: #0F141C;
      font-size: 18px;
      font-weight: 900;
      border-radius: var(--radius-sm);
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      color: #CBD5E1;
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition-fast);
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover {
      color: var(--electric-cyan);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--electric-cyan);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn-glow {
      background: linear-gradient(135deg, var(--electric-cyan), #00C6FF);
      color: #091018;
      font-weight: 700;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition-fast);
      white-space: nowrap;
    }
    .btn-glow:hover {
      box-shadow: var(--shadow-glow);
      transform: translateY(-1px);
    }
    .btn-outline {
      border: 1px solid rgba(255, 255, 255, 0.25);
      background: transparent;
      color: var(--text-white);
      padding: 10px 22px;
      font-weight: 600;
      font-size: 14px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition-fast);
    }
    .btn-outline:hover {
      border-color: var(--electric-cyan);
      color: var(--electric-cyan);
      background: rgba(0, 242, 254, 0.05);
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid rgba(255,255,255,0.2);
      color: white;
      font-size: 20px;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* 板块通用体系 */
    .section-spacing {
      padding: 92px 0;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: var(--text-white);
    }
    .section-dark-alt {
      background-color: var(--bg-dark-secondary);
      color: var(--text-white);
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
    }
    .section-light {
      background-color: var(--bg-light);
      color: var(--text-dark);
    }
    .section-light-alt {
      background-color: var(--bg-light-alt);
      color: var(--text-dark);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }
    .section-header {
      margin-bottom: 56px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .sub-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 14px;
    }
    .badge-cyan {
      background: rgba(0, 242, 254, 0.1);
      color: var(--electric-cyan);
      border: 1px solid rgba(0, 242, 254, 0.25);
    }
    .badge-green {
      background: rgba(16, 185, 129, 0.1);
      color: var(--hyper-green);
      border: 1px solid rgba(16, 185, 129, 0.25);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.35;
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }
    .section-dark .section-title {
      color: var(--text-white);
    }
    .section-light .section-title {
      color: var(--text-dark);
    }
    .section-desc {
      font-size: 16px;
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: var(--text-gray);
    }
    .section-light .section-desc {
      color: var(--text-muted);
    }

    /* 1. 首屏 Bento/堆叠设计规范 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(0, 242, 254, 0.08) 0%, rgba(15, 20, 28, 1) 70%), #0F141C;
      position: relative;
      padding: 70px 0 90px;
      border-bottom: 1px solid var(--border-dark);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-white);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-highlight {
      background: linear-gradient(135deg, #00F2FE 20%, #10B981 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 17px;
      color: #94A3B8;
      line-height: 1.75;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-feature-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      padding-top: 24px;
      border-top: 1px solid var(--border-dark);
    }
    .feature-tag-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: #CBD5E1;
    }
    .feature-tag-item svg {
      width: 18px;
      height: 18px;
      color: var(--hyper-green);
    }
    /* 卡片堆叠交互视觉区 */
    .hero-stack-stage {
      position: relative;
      height: 480px;
      width: 100%;
    }
    .stack-card {
      position: absolute;
      border-radius: var(--radius-md);
      background: #18202C;
      border: 1px solid rgba(255, 255, 255, 0.12);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
      transition: var(--transition-fast);
      overflow: hidden;
    }
    .stack-card-main {
      width: 88%;
      top: 10%;
      left: 6%;
      z-index: 3;
      border-color: rgba(0, 242, 254, 0.35);
    }
    .stack-card-main:hover {
      transform: translateY(-4px);
      box-shadow: 0 25px 50px rgba(0, 242, 254, 0.2);
    }
    .stack-card-side-left {
      width: 75%;
      top: 0;
      left: 0;
      z-index: 1;
      opacity: 0.65;
      transform: scale(0.94) rotate(-2deg);
    }
    .stack-card-side-right {
      width: 75%;
      bottom: 0;
      right: 0;
      z-index: 2;
      opacity: 0.85;
      transform: scale(0.96) rotate(2deg);
    }
    .stack-card-header {
      background: #0B0E14;
      padding: 12px 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .stack-title {
      font-size: 13px;
      font-weight: 700;
      color: #CBD5E1;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .stack-card-body {
      padding: 16px;
    }
    .live-dashboard-preview {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-bottom: 12px;
    }
    .dash-metric-box {
      background: rgba(15, 20, 28, 0.7);
      padding: 12px 10px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255,255,255,0.04);
      text-align: center;
    }
    .dash-metric-val {
      font-size: 20px;
      font-weight: 800;
      color: var(--electric-cyan);
    }
    .dash-metric-lbl {
      font-size: 11px;
      color: var(--text-gray);
      margin-top: 2px;
    }
    .live-track-bar {
      height: 6px;
      background: rgba(255,255,255,0.08);
      border-radius: 3px;
      overflow: hidden;
      margin: 8px 0;
    }
    .live-track-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--hyper-green), var(--electric-cyan));
      width: 82%;
    }

    /* 2. 倒计时发布与即时保障通告 */
    .countdown-banner {
      background: linear-gradient(90deg, #101923, #152232);
      border-bottom: 1px solid var(--border-dark);
      padding: 24px 0;
    }
    .countdown-flex {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .countdown-info {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .countdown-icon-box {
      width: 44px;
      height: 44px;
      background: rgba(0, 242, 254, 0.12);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--electric-cyan);
    }
    .countdown-boxes {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .c-box {
      background: #0B0E14;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius-sm);
      padding: 6px 12px;
      text-align: center;
      min-width: 52px;
    }
    .c-num {
      font-size: 20px;
      font-weight: 800;
      color: var(--electric-cyan);
      display: block;
    }
    .c-label {
      font-size: 11px;
      color: var(--text-gray);
    }

    /* 3. 赛事全周期数字化服务矩阵 (4步流程) */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .flow-card {
      background: var(--text-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-fast);
      position: relative;
    }
    .flow-card:hover {
      transform: translateY(-5px);
      border-color: #38BDF8;
      box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
    }
    .flow-step-num {
      position: absolute;
      top: -12px;
      left: 24px;
      background: var(--text-dark);
      color: var(--electric-cyan);
      font-size: 13px;
      font-weight: 800;
      padding: 2px 10px;
      border-radius: 4px;
    }
    .flow-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 14px 0 10px;
      color: var(--text-dark);
    }
    .flow-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .flow-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: #0369A1;
      background: #E0F2FE;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 4. 智能赛事管理系统核心优势矩阵 (6卡片网格) */
    .grid-3-col {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #18202C;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: var(--transition-fast);
      position: relative;
    }
    .matrix-card:hover {
      border-color: var(--electric-cyan);
      transform: translateY(-4px);
      box-shadow: 0 12px 28px rgba(0, 242, 254, 0.12);
    }
    .matrix-card-icon {
      width: 50px;
      height: 50px;
      border-radius: var(--radius-sm);
      background: rgba(0, 242, 254, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--electric-cyan);
      margin-bottom: 20px;
      transition: var(--transition-fast);
    }
    .matrix-card:hover .matrix-card-icon {
      transform: scale(1.1);
      background: rgba(0, 242, 254, 0.2);
    }
    .matrix-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 12px;
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-gray);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .matrix-meta {
      font-size: 12px;
      color: var(--hyper-green);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 6px;
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 14px;
    }

    /* 5. 核心产品套件与系统版本选型 (3大卡片) */
    .edition-card {
      background: var(--text-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      position: relative;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-fast);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .edition-card.featured {
      border: 2px solid #0284C7;
      box-shadow: 0 16px 36px rgba(2, 132, 199, 0.12);
    }
    .edition-ribbon {
      position: absolute;
      top: -14px;
      right: 28px;
      background: #0284C7;
      color: white;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .edition-card h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 10px;
    }
    .edition-scale {
      font-size: 13px;
      color: #64748B;
      margin-bottom: 20px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-light);
    }
    .edition-features {
      list-style: none;
      margin-bottom: 30px;
      flex-grow: 1;
    }
    .edition-features li {
      font-size: 14px;
      color: var(--text-muted);
      padding: 8px 0;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .edition-features li svg {
      width: 16px;
      height: 16px;
      color: var(--hyper-green);
      flex-shrink: 0;
    }

    /* 6. 传统赛事 vs 智能赛事管理效能对比图表 */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #18202C;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
    }
    .compare-column h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 24px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .compare-item {
      margin-bottom: 22px;
    }
    .compare-label {
      display: flex;
      justify-content: space-between;
      font-size: 14px;
      margin-bottom: 6px;
      color: #CBD5E1;
    }
    .bar-bg {
      height: 10px;
      background: rgba(255,255,255,0.08);
      border-radius: 5px;
      overflow: hidden;
    }
    .bar-fill-bad {
      height: 100%;
      background: #EF4444;
      border-radius: 5px;
    }
    .bar-fill-good {
      height: 100%;
      background: lineardeg, var(--hyper-green), var(--electric-cyan));
      border-radius: 5px;
    }

    /* 7. 平台研发演进与大型赛事实践里程碑 */
    .timeline-wrapper {
      position: relative;
      margin-top: 40px;
    }
    .timeline-wrapper::before {
      content: "";
      position: absolute;
      top: 50%;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--border-light);
      transform: translateY(-50%);
      z-index: 1;
    }
    .timeline-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      z-index: 2;
    }
    .timeline-node {
      background: var(--text-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-fast);
      position: relative;
    }
    .timeline-node:hover {
      border-color: #0284C7;
      transform: translateY(-4px);
    }
    .timeline-year {
      display: inline-block;
      font-size: 18px;
      font-weight: 800;
      color: #0284C7;
      margin-bottom: 8px;
    }
    .timeline-node h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }
    .timeline-node p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 标杆赛事主办方数字化落地故事 */
    .case-story-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      background: #18202C;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
    }
    .case-media {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .case-media img {
      width: 100%;
      height: 340px;
      object-fit: cover;
      display: block;
    }
    .case-media-tag {
      position: absolute;
      bottom: 16px;
      left: 16px;
      background: rgba(15, 20, 28, 0.85);
      backdrop-filter: blur(8px);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      color: var(--electric-cyan);
      border: 1px solid rgba(0, 242, 254, 0.3);
    }
    .case-story-content h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 16px;
      line-height: 1.4;
    }
    .case-story-content p {
      font-size: 15px;
      color: var(--text-gray);
      line-height: 1.75;
      margin-bottom: 22px;
    }
    .case-metric-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .metric-pill {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      color: #CBD5E1;
    }
    .metric-pill strong {
      color: var(--hyper-green);
      font-weight: 700;
      margin-right: 4px;
    }

    /* 9. 全网赛事吞吐量与实时关键数据指标条 */
    .kpi-strip {
      background: #0B0E14;
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
      padding: 50px 0;
    }
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .kpi-val {
      font-size: 38px;
      font-weight: 900;
      color: var(--electric-cyan);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .kpi-title {
      font-size: 14px;
      color: var(--text-gray);
      font-weight: 500;
    }

    /* 10. 权威资质与赛事数据合规保障 */
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .compliance-card {
      background: var(--text-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      box-shadow: var(--shadow-subtle);
      text-align: center;
      transition: var(--transition-fast);
    }
    .compliance-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
    }
    .comp-icon {
      width: 48px;
      height: 48px;
      margin: 0 auto 16px;
      border-radius: 50%;
      background: #EFF6FF;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0284C7;
    }
    .compliance-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }
    .compliance-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. 组委会、裁判长与技术代表真实评价 */
    .testimonial-card {
      background: #18202C;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition-fast);
    }
    .testimonial-card:hover {
      border-color: rgba(0, 242, 254, 0.4);
      transform: translateY(-3px);
    }
    .rating-stars {
      color: #FBBF24;
      font-size: 15px;
      margin-bottom: 16px;
      letter-spacing: 2px;
    }
    .testimonial-text {
      font-size: 14px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }
    .user-profile {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 18px;
    }
    .user-avatar-tag {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #1E293B;
      border: 1px solid rgba(0, 242, 254, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      color: var(--electric-cyan);
    }
    .user-meta h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
    }
    .user-meta span {
      font-size: 12px;
      color: var(--text-gray);
    }

    /* 12. 赛事数字化前沿动态与实务资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--text-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-fast);
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 14px 28px rgba(15, 23, 42, 0.08);
    }
    .news-img-box {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .news-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-img-box img {
      transform: scale(1.04);
    }
    .news-body {
      padding: 24px 20px;
    }
    .news-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: #0284C7;
      background: #F0F9FF;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .news-body h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-dark);
      line-height: 1.45;
      margin-bottom: 10px;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 13. 赛事组织疑难排查与快速应对策略 (3场景图表) */
    .emergency-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .emergency-card {
      background: #18202C;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
    }
    .emergency-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .emergency-icon {
      width: 36px;
      height: 36px;
      border-radius: var(--radius-sm);
      background: rgba(239, 68, 68, 0.15);
      color: #F87171;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .emergency-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-white);
    }
    .strategy-box {
      background: rgba(15, 20, 28, 0.6);
      border-left: 3px solid var(--hyper-green);
      padding: 12px 14px;
      margin-top: 14px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .strategy-title {
      font-size: 12px;
      font-weight: 700;
      color: var(--hyper-green);
      margin-bottom: 4px;
    }
    .strategy-desc {
      font-size: 13px;
      color: #CBD5E1;
      line-height: 1.55;
    }

    /* 14. 核心技术与实施手风琴 (FAQ) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--text-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
      transition: var(--transition-fast);
    }
    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 700;
      font-size: 16px;
      color: var(--text-dark);
      user-select: none;
    }
    .faq-arrow {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      color: #64748B;
      flex-shrink: 0;
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: #0284C7;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background: #F8FAFC;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      transition: max-height 0.4s ease-in-out;
    }
    .faq-answer-inner {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-muted);
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }

    /* 15. 申请赛事演示与定制方案表单 (底部转化区) */
    .cta-container {
      background: radial-gradient(circle at 10% 50%, rgba(0, 242, 254, 0.08) 0%, rgba(24, 32, 44, 1) 80%), #18202C;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 50px 44px;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .cta-text h2 {
      font-size: 30px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .cta-text p {
      font-size: 15px;
      color: var(--text-gray);
      line-height: 1.7;
      margin-bottom: 26px;
    }
    .cta-hotline {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 12px 18px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-sm);
    }
    .cta-hotline-icon {
      color: var(--hyper-green);
    }
    .cta-hotline strong {
      font-size: 18px;
      color: var(--text-white);
      letter-spacing: 0.5px;
    }
    .form-panel {
      background: #0F141C;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 30px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      color: #CBD5E1;
      margin-bottom: 6px;
      font-weight: 500;
    }
    .form-input {
      width: 100%;
      background: #18202C;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      color: var(--text-white);
      font-size: 14px;
      transition: var(--transition-fast);
    }
    .form-input:focus {
      border-color: var(--electric-cyan);
      box-shadow: 0 0 0 2px rgba(0, 242, 254, 0.2);
    }
    .form-submit-btn {
      width: 100%;
      background: linear-gradient(135deg, var(--electric-cyan), var(--hyper-green));
      color: #0F141C;
      font-weight: 700;
      font-size: 15px;
      padding: 12px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      margin-top: 8px;
      transition: var(--transition-fast);
    }
    .form-submit-btn:hover {
      box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
      transform: translateY(-1px);
    }

    /* 页脚设计 */
    .site-footer {
      background: #0B0E14;
      border-top: 1px solid var(--border-dark);
      padding: 60px 0 30px;
      color: #64748B;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h4 {
      color: var(--text-white);
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 380px;
      color: var(--text-gray);
    }
    .footer-links h5 {
      color: var(--text-white);
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links ul {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      transition: var(--transition-fast);
    }
    .footer-links a:hover {
      color: var(--electric-cyan);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-stack-stage {
        height: 380px;
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3-col, .emergency-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .compliance-grid, .timeline-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-wrapper::before {
        display: none;
      }
      .cta-container {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .topbar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .header-actions .btn-outline {
        display: none;
      }
      .hero-content h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .grid-3-col, .flow-steps-grid, .emergency-grid, .news-grid, .compliance-grid, .timeline-grid, .compare-container, .case-story-grid {
        grid-template-columns: 1fr;
      }
      .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 28px;
      }
      .hero-stack-stage {
        display: none;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-spacing {
        padding: 60px 0;
      }
    }