/* roulang page: index */
/* ----- 设计变量与重置 ----- */
    :root {
      --bg-deep: #0A0E17;
      --bg-card: rgba(255,255,255,0.05);
      --blue-purple: #4A00E0;
      --ice-blue: #00E5FF;
      --lava-orange: #FF4D00;
      --amber-gold: #F5A623;
      --text-primary: #FFFFFF;
      --text-secondary: rgba(255,255,255,0.7);
      --text-muted: rgba(255,255,255,0.45);
      --border-dim: rgba(255,255,255,0.1);
      --border-glow: rgba(0,229,255,0.3);
      --shadow-neon: 0 0 28px rgba(74,0,224,0.35);
      --radius-card: 16px;
      --radius-container: 24px;
      --radius-btn: 50px;
      --font-number: 'DIN Alternate', 'Roboto Mono', monospace;
      --transition-smooth: all 0.25s ease;
    }

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

    body {
      background: var(--bg-deep);
      font-family: 'PingFang SC', 'HarmonyOS Sans', 'Microsoft YaHei', sans-serif;
      color: var(--text-primary);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      background-image: radial-gradient(circle at 20% 10%, rgba(74,0,224,0.18) 0%, transparent 45%);
    }

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

    a {
      text-decoration: none;
      color: inherit;
    }

    button, input {
      font-family: inherit;
    }

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

    /* 导航 - 沉浸式悬浮 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 999;
      background: rgba(10,14,23,0.72);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-dim);
      transition: var(--transition-smooth);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 800;
      letter-spacing: 1px;
      background: linear-gradient(135deg, #FFFFFF 0%, #00E5FF 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    .nav-links a {
      font-weight: 600;
      color: var(--text-secondary);
      transition: var(--transition-smooth);
      position: relative;
      font-size: 1rem;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--ice-blue);
    }

    .live-badge {
      background: linear-gradient(135deg, var(--blue-purple), var(--ice-blue));
      padding: 8px 22px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 6px;
      color: #fff;
      box-shadow: 0 0 20px rgba(0,229,255,0.4);
      transition: var(--transition-smooth);
    }
    .live-badge:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 35px rgba(0,229,255,0.7);
    }
    .live-dot {
      width: 10px;
      height: 10px;
      background: #FF4D00;
      border-radius: 50%;
      display: inline-block;
      animation: pulse 1.5s infinite;
    }
    @keyframes pulse {
      0% { opacity: 1; box-shadow: 0 0 5px #FF4D00; }
      50% { opacity: 0.5; box-shadow: 0 0 12px #FF4D00; }
      100% { opacity: 1; box-shadow: 0 0 5px #FF4D00; }
    }

    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      color: white;
      font-size: 2rem;
    }

    /* Hero 区域 */
    .hero {
      padding: 140px 0 80px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
      position: relative;
    }
    .hero-bg {
      position: absolute;
      top:0; left:0; width:100%; height:100%;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.2;
      z-index: 0;
      pointer-events: none;
    }
    .hero-left {
      background: rgba(0,0,0,0.35);
      backdrop-filter: blur(12px);
      border-radius: var(--radius-container);
      padding: 28px;
      border: 1px solid var(--border-dim);
      position: relative;
      z-index: 2;
      font-family: var(--font-number);
    }
    .score-stream {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .match-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .team-name { font-weight: 600; color: var(--text-secondary); }
    .score { font-size: 1.6rem; font-weight: 800; color: var(--ice-blue); }
    .hero-right { position: relative; z-index: 2; }
    .hero-title {
      font-size: 3.2rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 24px;
      background: linear-gradient(to right, #fff, #aaccff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .btn-glow {
      background: linear-gradient(135deg, var(--blue-purple), var(--ice-blue));
      border: none;
      padding: 16px 40px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      color: #fff;
      cursor: pointer;
      box-shadow: 0 0 25px rgba(0,229,255,0.5);
      transition: 0.3s;
      display: inline-block;
    }
    .btn-glow:hover { transform: translateY(-3px); filter: brightness(1.1); }

    /* 数据看板 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 24px;
      margin: 70px 0;
    }
    .stat-card {
      background: rgba(255,255,255,0.04);
      backdrop-filter: blur(16px);
      border-radius: var(--radius-card);
      padding: 28px 20px;
      text-align: center;
      border: 1px solid var(--border-dim);
    }
    .stat-number {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--amber-gold);
      font-family: var(--font-number);
    }

    /* Bento 服务网格 */
    .bento-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 20px;
      margin: 80px 0;
    }
    .bento-card {
      background: rgba(255,255,255,0.04);
      backdrop-filter: blur(14px);
      border-radius: var(--radius-card);
      padding: 26px;
      border: 1px solid var(--border-dim);
      transition: 0.25s;
    }
    .bento-card:hover { border-color: var(--ice-blue); box-shadow: 0 0 20px rgba(0,229,255,0.2); }
    .span-2 { grid-column: span 2; }
    .card-icon { font-size: 2rem; margin-bottom: 12px; }

    /* VS 对比 */
    .vs-section {
      background: rgba(0,0,0,0.3);
      backdrop-filter: blur(20px);
      border-radius: var(--radius-container);
      padding: 50px;
      margin: 70px 0;
    }
    .vs-container { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .team-red, .team-blue { flex:1; }
    .vs-text { font-size: 3rem; font-weight: 900; color: transparent; -webkit-text-stroke: 2px #ffffff; }

    /* FAQ */
    .faq-item {
      background: rgba(255,255,255,0.03);
      backdrop-filter: blur(8px);
      border:1px solid var(--border-dim);
      border-radius: 12px;
      margin-bottom: 16px;
      padding: 18px 24px;
    }

    /* CTA */
    .cta-block {
      background: linear-gradient(135deg, #1a1040, #0a1a2b);
      border-radius: var(--radius-container);
      padding: 60px;
      text-align: center;
    }
    .input-field {
      background: rgba(0,0,0,0.5);
      border:1px solid var(--border-dim);
      padding: 14px 20px;
      border-radius: 30px;
      color:white;
      width: 280px;
    }

    footer {
      border-top: 1px solid var(--border-dim);
      padding: 30px 0;
      color: var(--text-muted);
      text-align: center;
    }

    @media (max-width: 1024px) {
      .hero { grid-template-columns: 1fr; }
      .bento-grid { grid-template-columns: repeat(2,1fr); }
      .stats-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .mobile-menu-btn { display: block; }
      .bento-grid { grid-template-columns: 1fr; }
      .span-2 { grid-column: span 1; }
      .vs-container { flex-direction: column; }
    }