/* roulang page: index */
:root {
      --primary-bg: #0B0F19;
      --card-bg: #0F172A;
      --accent: #6366F1;
      --cyber: #EC4899;
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
      --border-color: rgba(255, 255, 255, 0.08);
    }
    body {
      background-color: var(--primary-bg);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .clip-slant {
      clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
    }
    @media (max-width: 768px) {
      .clip-slant {
        clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
      }
    }
    .grid-pattern {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    }