/* roulang page: index */
:root {
      /* 深域光能 · 威客电竞视觉系统 */
      --primary-cyan: #00F0FF;
      --primary-magenta: #FF0066;
      --secondary-deep-purple: #6C3CE1;
      --secondary-energy-orange: #FF6B00;
      --bg-deep-space: #0A0E17;
      --bg-dark-blue: #121A2B;
      --card-glass-bg: rgba(255, 255, 255, 0.03);
      --card-glass-border: rgba(255, 255, 255, 0.08);
      --card-elevated-bg: rgba(255, 255, 255, 0.06);
      --text-primary: rgba(255, 255, 255, 0.92);
      --text-secondary: rgba(255, 255, 255, 0.7);
      --text-muted: rgba(255, 255, 255, 0.45);
      
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      --font-mono: 'Inter', 'DIN Alternate', 'Rajdhani', 'Courier New', monospace;
      
      --radius-card: 16px;
      --radius-button: 8px;
      --radius-pill: 50px;
      --radius-sm: 12px;
      
      --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
      --glow-magenta: 0 0 20px rgba(255, 0, 102, 0.25);
      
      --transition-smooth: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-deep-space);
    }
    
    body {
      font-family: var(--font-sans);
      line-height: 1.6;
      color: var(--text-primary);
      background: radial-gradient(circle at 20% 10%, #1a1f35 0%, var(--bg-deep-space) 70%);
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
    }
    
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition-smooth);
    }
    
    button, .btn {
      cursor: pointer;
      font-family: inherit;
      border: none;
      background: transparent;
    }
    
    /* 容器 */
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    
    @media (min-width: 1400px) {
      .container {
        max-width: 1320px;
      }
    }
    
    /* 导航版式 - 沉浸式毛玻璃 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(10, 14, 23, 0.55);
      backdrop-filter: blur(30px);
      -webkit-backdrop-filter: blur(30px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: background 0.3s ease, box-shadow 0.3s ease;
    }
    
    .site-header.scrolled {
      background: rgba(10, 14, 23, 0.85);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    }
    
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.75rem 0;
      min-height: 64px;
    }
    
    .logo-link {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-weight: 700;
      font-size: 1.5rem;
      color: white;
      letter-spacing: -0.5px;
    }
    
    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary-cyan), var(--secondary-deep-purple));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
      position: relative;
      transform: rotate(0deg);
      transition: transform 0.2s;
    }
    
    .logo-link:hover .logo-icon {
      transform: rotate(10deg) scale(1.05);
    }
    
    .desktop-nav {
      display: flex;
      gap: 2.25rem;
      align-items: center;
      color: var(--text-secondary);
      font-weight: 500;
    }
    
    .desktop-nav a {
      padding: 0.35rem 0;
      position: relative;
      font-size: 0.95rem;
      letter-spacing: 0.02em;
    }
    
    .desktop-nav a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--primary-cyan);
      box-shadow: 0 0 8px var(--primary-cyan);
      transition: width 0.25s ease;
    }
    
    .desktop-nav a:hover, .desktop-nav a.active {
      color: white;
    }
    
    .desktop-nav a:hover::after, .desktop-nav a.active::after {
      width: 100%;
    }
    
    .btn-primary {
      background: var(--primary-cyan);
      color: #0A0E17;
      padding: 0.65rem 1.8rem;
      border-radius: var(--radius-pill);
      font-weight: 600;
      letter-spacing: 0.03em;
      box-shadow: 0 0 18px rgba(0, 240, 255, 0.65);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      transition: 0.25s;
    }
    
    .btn-primary:hover {
      background: #4df5ff;
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.9);
      transform: translateY(-1px);
    }
    
    .btn-ghost {
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: white;
      padding: 0.6rem 1.8rem;
      border-radius: var(--radius-pill);
      font-weight: 500;
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(5px);
      transition: 0.25s;
    }
    
    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: var(--primary-cyan);
    }
    
    .mobile-menu-toggle {
      display: none;
      font-size: 1.6rem;
      color: white;
      background: none;
      border: none;
    }
    
    .mobile-nav-panel {
      position: fixed;
      top: 0;
      right: -100%;
      width: 280px;
      height: 100vh;
      background: rgba(8, 12, 20, 0.95);
      backdrop-filter: blur(25px);
      border-left: 1px solid rgba(255,255,255,0.08);
      padding: 2rem 1.5rem;
      flex-direction: column;
      gap: 2rem;
      z-index: 200;
      transition: right 0.35s ease;
      display: flex;
    }
    
    .mobile-nav-panel.open {
      right: 0;
    }
    
    .mobile-nav-panel a {
      font-size: 1.2rem;
      font-weight: 500;
      color: var(--text-secondary);
    }
    
    @media (max-width: 768px) {
      .desktop-nav, .header-cta-desktop {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
    }
    
    /* Hero 首屏 */
    .hero {
      min-height: 90vh;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
    }
    
    .hero-bg-image {
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: 0.35;
      z-index: 0;
    }
    
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 30% 40%, rgba(0,240,255,0.12) 0%, transparent 60%);
      z-index: 1;
    }
    
    .hero-content {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
      align-items: center;
      width: 100%;
    }
    
    .hero-text h1 {
      font-size: clamp(3rem, 7vw, 5rem);
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -0.02em;
      text-shadow: 0 0 45px rgba(0,240,255,0.55);
      margin-bottom: 1.5rem;
    }
    .hero-text .highlight {
      background: linear-gradient(to right, var(--primary-cyan), #a78bfa);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-secondary);
      margin-bottom: 2rem;
    }
    .hero-buttons {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }
    .hero-panel {
      background: rgba(20, 28, 45, 0.7);
      backdrop-filter: blur(25px);
      border-radius: 28px;
      padding: 2rem;
      border: 1px solid rgba(255,255,255,0.1);
      box-shadow: 0 25px 50px rgba(0,0,0,0.6);
    }
    /* 组件样式 */
    .section-title {
      font-size: clamp(2.2rem, 5vw, 2.8rem);
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .section-sub {
      color: var(--text-secondary);
      margin-bottom: 3rem;
    }
    section {
      padding: 5rem 0;
    }
    .live-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
      gap: 1.5rem;
    }
    .data-card {
      background: var(--card-glass-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--card-glass-border);
      border-radius: var(--radius-card);
      padding: 1.5rem;
    }
    footer {
      background: #060A12;
      padding: 3rem 0;
      color: var(--text-secondary);
    }
    @media (max-width: 768px) {
      .hero-content {
        grid-template-columns: 1fr;
      }
    }