/* roulang page: index */
:root {
      --color-primary: #10B981;
      --color-secondary: #06B6D4;
      --color-dark: #0A0D12;
      --color-light-bg: #F8FAFC;
      --color-border: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .num-tabular {
      font-variant-numeric: tabular-nums;
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(16, 185, 129, 0.08) 0%, rgba(248, 250, 252, 0) 70%);
    }
    .dark-glow {
      background: radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.06) 0%, rgba(10, 13, 18, 0) 70%);
    }
    .card-transition {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-transition:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
    }