/* roulang page: index */
:root {
      --bg-dark: #0B0E14;
      --bg-surface: #121721;
      --bg-card: #18202F;
      --border-color: #1F2937;
      --accent-cyan: #00F2A9;
      --accent-amber: #FF9F1C;
    }
    body {
      background-color: var(--bg-dark);
      color: #9CA3AF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
    }
    .custom-glow-cyan {
      box-shadow: 0 0 25px -5px rgba(0, 242, 169, 0.25);
    }
    .custom-glow-amber {
      box-shadow: 0 0 25px -5px rgba(255, 159, 28, 0.25);
    }
    .card-hover-fx {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover-fx:hover {
      transform: translateY(-4px);
      border-color: rgba(0, 242, 169, 0.35);
      box-shadow: 0 20px 30px -10px rgba(0, 242, 169, 0.08);
    }
    details summary::-webkit-details-marker {
      display: none;
    }