/* roulang page: index */
:root {
      --primary-cyan: #0891b2;
      --primary-indigo: #4f46e5;
      --bg-slate: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
    }
    body {
      background-color: var(--bg-slate);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .gradient-brand {
      background: linear-gradient(135deg, #0891b2 0%, #4f46e5 100%);
    }
    .gradient-brand-text {
      background: linear-gradient(135deg, #0891b2 0%, #4f46e5 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .bento-glow {
      box-shadow: 0 20px 40px -15px rgba(8, 145, 178, 0.12);
    }
    input:focus, button:focus {
      outline: 2px solid #0891b2;
      outline-offset: 2px;
    }