/* roulang page: index */
:root {
      --primary-dark: #0A192F;
      --primary-blue: #0F2F57;
      --accent-teal: #00BFA5;
      --accent-orange: #FF9100;
      --text-main: #0F172A;
      --text-sub: #334155;
      --text-muted: #64748B;
      --bg-page: #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: var(--bg-page);
      color: var(--text-sub);
      overflow-x: hidden;
    }
    .badge-teal {
      background: rgba(0, 191, 165, 0.1);
      color: #009688;
      border: 1px solid rgba(0, 191, 165, 0.25);
    }
    .badge-blue {
      background: rgba(30, 86, 160, 0.08);
      color: #1E56A0;
      border: 1px solid rgba(30, 86, 160, 0.2);
    }
    .card-hover {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      border: 1px solid rgba(226, 232, 240, 0.85);
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -12px rgba(15, 47, 87, 0.12);
      border-color: rgba(30, 86, 160, 0.3);
    }
    .stat-number {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    }