/* roulang page: index */
:root {
      --primary-cyan: #00C2FF;
      --primary-green: #00F298;
      --accent-orange: #FF5252;
      --bg-dark: #0B1120;
      --bg-slate: #0F172A;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --card-radius: 1.25rem;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      overflow-x: hidden;
      background-color: #F8FAFC;
      color: #334155;
    }
    .brand-gradient {
      background: linear-gradient(135deg, #00C2FF 0%, #00F298 100%);
    }
    .brand-gradient-text {
      background: linear-gradient(135deg, #0099FF 0%, #00D580 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-gradient-dark {
      background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    }
    .bento-card {
      border-radius: var(--card-radius);
      box-shadow: 0 10px 30px -10px rgba(0, 194, 255, 0.08);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .bento-card:hover {
      box-shadow: 0 20px 40px -15px rgba(0, 194, 255, 0.18);
      transform: translateY(-4px);
    }
    .data-badge {
      background: rgba(0, 194, 255, 0.1);
      border: 1px solid rgba(0, 194, 255, 0.25);
      backdrop-filter: blur(8px);
    }
    .glass-nav {
      backdrop-filter: blur(12px);
      background-color: rgba(255, 255, 255, 0.92);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    }
    .form-input-focus:focus {
      outline: none;
      border-color: #00C2FF;
      box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.2);
    }