/* roulang page: index */
:root {
      --bg-deep: #0B0C10;
      --bg-card: #1A1D2E;
      --bg-panel: #111320;
      --blue-energy: #00D2FF;
      --gold-arena: #F0B90B;
      --gold-dark: #8B6F2E;
      --green-win: #13C296;
      --red-lose: #E84057;
      --text-primary: #FFFFFF;
      --text-secondary: #B0B5C6;
      --text-muted: #6B7280;
      --border-subtle: rgba(0,210,255,0.15);
      --border-active: rgba(0,210,255,0.6);
      --shadow-card: 0 4px 24px rgba(0,0,0,0.6);
      --shadow-glow: 0 8px 32px rgba(0,210,255,0.25);
      --radius-md: 8px;
      --radius-sm: 6px;
      --font-mono: 'Roboto Mono', 'Courier New', monospace;
      --transition: all 0.2s ease;
    }

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

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      background-color: var(--bg-deep);
      color: var(--text-primary);
      line-height: 1.75;
      font-size: 16px;
      scroll-behavior: smooth;
    }

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

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

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

    /* 导航栏 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(11, 12, 16, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid transparent;
      transition: all 0.3s ease;
    }

    .navbar.scrolled {
      background: rgba(11, 12, 16, 0.98);
      box-shadow: 0 4px 20px rgba(0,0,0,0.7);
      border-bottom: 1px solid var(--blue-energy);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .logo {
      font-size: 1.6rem;
      font-weight: 700;
      letter-spacing: 1px;
      background: linear-gradient(135deg, var(--gold-arena) 0%, var(--blue-energy) 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .nav-menu {
      display: flex;
      gap: 32px;
      align-items: center;
    }

    .nav-link {
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 1rem;
      transition: var(--transition);
      position: relative;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--blue-energy);
    }

    .btn-nav {
      background: var(--gold-arena);
      color: var(--bg-deep);
      font-weight: 700;
      padding: 10px 24px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .btn-nav:hover {
      background: #FFD54F;
      transform: scale(1.03);
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
    }

    .hamburger span {
      width: 25px;
      height: 3px;
      background: var(--text-primary);
      border-radius: 2px;
      transition: var(--transition);
    }

    .mobile-drawer {
      display: none;
      position: fixed;
      top: 0;
      right: 0;
      width: 280px;
      height: 100vh;
      background: var(--bg-panel);
      backdrop-filter: blur(20px);
      z-index: 999;
      padding: 80px 32px;
      flex-direction: column;
      gap: 28px;
      transform: translateX(100%);
      transition: transform 0.3s ease;
    }

    .mobile-drawer.open {
      transform: translateX(0);
    }

    /* Hero */
    .hero {
      padding: 160px 0 100px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      min-height: 90vh;
      display: flex;
      align-items: center;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(11,12,16,0.78);
      background: linear-gradient(90deg, rgba(11,12,16,0.9) 0%, rgba(11,12,16,0.6) 60%);
    }

    .hero-content {
      position: relative;
      display: flex;
      align-items: center;
      gap: 60px;
      flex-wrap: wrap;
    }

    .hero-text {
      flex: 1 1 400px;
    }

    .hero h1 {
      font-size: 2.8rem;
      font-weight: 700;
      background: linear-gradient(to right, var(--blue-energy), var(--gold-arena));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 20px;
      letter-spacing: 2px;
    }

    .hero-sub {
      font-size: 1.2rem;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }

    .btn-group {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }

    .btn-primary {
      background: var(--gold-arena);
      color: var(--bg-deep);
      font-weight: 700;
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      transition: var(--transition);
      display: inline-block;
      text-align: center;
    }

    .btn-primary:hover {
      background: #FFD54F;
      transform: scale(1.03);
    }

    .btn-outline {
      border: 2px solid var(--blue-energy);
      color: var(--blue-energy);
      background: transparent;
      font-weight: 600;
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .btn-outline:hover {
      background: rgba(0,210,255,0.1);
    }

    .live-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      flex: 0 0 320px;
      box-shadow: var(--shadow-card);
      animation: pulseGlow 2s infinite;
      backdrop-filter: blur(5px);
    }

    @keyframes pulseGlow {
      0% { box-shadow: 0 0 10px rgba(0,210,255,0.3); }
      50% { box-shadow: 0 0 25px rgba(0,210,255,0.6); }
      100% { box-shadow: 0 0 10px rgba(0,210,255,0.3); }
    }

    .match-status {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
    }

    .pulse-dot {
      width: 10px;
      height: 10px;
      background: var(--green-win);
      border-radius: 50%;
      animation: pulse 1.2s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.8; }
      100% { transform: scale(1.3); opacity: 0; }
    }

    .teams {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 700;
    }

    .score {
      font-family: var(--font-mono);
      font-size: 2.2rem;
      color: var(--blue-energy);
      text-shadow: 0 0 12px var(--blue-energy);
    }

    /* 通用板块 */
    section {
      padding: 100px 0;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 16px;
      padding-left: 16px;
      border-left: 4px solid var(--blue-energy);
      color: var(--text-primary);
    }

    .grid-3, .grid-4 {
      display: grid;
      gap: 28px;
    }
    .grid-3 { grid-template-columns: repeat(3,1fr); }
    .grid-4 { grid-template-columns: repeat(4,1fr); }

    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
    }
    .card:hover {
      border-color: var(--blue-energy);
      box-shadow: var(--shadow-glow);
      transform: translateY(-4px);
    }

    .matches-scroll {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding-bottom: 10px;
    }

    .match-card {
      min-width: 280px;
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 20px;
      border: 1px solid var(--border-subtle);
    }

    .stat-number {
      font-family: var(--font-mono);
      font-size: 2.5rem;
      font-weight: 800;
      background: linear-gradient(180deg, var(--blue-energy), var(--gold-arena));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .faq-item {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      border: 1px solid var(--border-subtle);
    }

    .faq-question {
      padding: 20px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
    }

    .faq-answer {
      padding: 0 20px 20px;
      color: var(--text-secondary);
      display: none;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    footer {
      background: var(--bg-panel);
      padding: 60px 0 20px;
      color: var(--text-muted);
    }

    @media (max-width: 1024px) {
      .grid-3 { grid-template-columns: repeat(2,1fr); }
      .grid-4 { grid-template-columns: repeat(2,1fr); }
    }

    @media (max-width: 768px) {
      .nav-menu { display: none; }
      .hamburger { display: flex; }
      .hero-content { flex-direction: column; }
      .hero h1 { font-size: 2rem; }
      .grid-3, .grid-4 { grid-template-columns: 1fr; }
      section { padding: 60px 0; }
    }