/* roulang page: index */
:root {
      --bg-dark: #0B0F12;
      --card-dark: #12181F;
      --card-muted: #161F28;
      --border-color: #1E293B;
      --accent-green: #00DC82;
      --accent-amber: #F59E0B;
      --text-main: #F1F5F9;
      --text-sub: #94A3B8;
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      line-height: 1.6;
    }
    .grid-bg-pattern {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(30, 41, 59, 0.4) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(30, 41, 59, 0.4) 1px, transparent 1px);
    }
    .accent-border-glow {
      box-shadow: 0 0 15px -3px rgba(0, 220, 130, 0.15);
    }
    .card-hover-fx {
      transition: all 0.25s ease-in-out;
    }
    .card-hover-fx:hover {
      border-color: rgba(0, 220, 130, 0.4);
      transform: translateY(-2px);
    }