/* roulang page: index */
:root {
      --bg-primary: #0b0f19;
      --bg-card: rgba(17, 24, 39, 0.75);
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --accent: #f43f5e;
      --accent-hover: #e11d48;
      --border-color: rgba(255, 255, 255, 0.08);
    }
    body {
      background-color: var(--bg-primary);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      overflow-x: hidden;
    }
    .glass-nav {
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
    }
    .panel-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .panel-card:hover {
      border-color: rgba(244, 63, 94, 0.4);
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -8px rgba(244, 63, 94, 0.15);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 20%, rgba(244, 63, 94, 0.18) 0%, rgba(11, 15, 25, 0) 70%);
    }
    .hero-mask-img {
      mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 40%, rgba(0,0,0,0) 100%);
      -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 40%, rgba(0,0,0,0) 100%);
    }