/* roulang page: index */
:root {
      --color-charcoal: #0B0F17;
      --color-navy: #0F172A;
      --color-teal: #0D9488;
      --color-tealdark: #0F766E;
      --color-amber: #F59E0B;
      --color-slate: #334155;
      --color-subtle: #64748B;
      --color-bglight: #F8FAFC;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: #F8FAFC;
      color: #0F172A;
      overflow-x: hidden;
    }
    .grid-pattern {
      background-size: 32px 32px;
      background-image: linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                        linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 9999px;
    }