/* roulang page: index */
:root {
      --primary: #0D3B2E;
      --neon: #00E575;
      --dark: #0B1412;
      --bg: #F7F9F8;
    }
    body {
      background-color: var(--bg);
      color: #111816;
      font-family: 'PingFang SC', system-ui, -apple-system, sans-serif;
      line-height: 1.7;
    }
    .neon-border {
      border: 1px solid rgba(0, 229, 117, 0.2);
    }
    .neon-border:hover {
      border-color: #00E575;
      transform: translateY(-4px);
    }
    .hero-mask {
      background: linear-gradient(180deg, rgba(11, 20, 18, 0.88) 0%, rgba(13, 59, 46, 0.95) 100%);
    }
    .accordion-content {
      transition: max-height 0.3s ease-out, opacity 0.2s ease;
      max-height: 0;
      overflow: hidden;
    }
    .accordion-content.open {
      max-height: 240px;
    }