/* roulang page: index */
:root {
      --primary: #0A2540;
      --primary-dark: #031326;
      --accent: #008080;
      --accent-light: #00D4B2;
      --signal-orange: #FF6B00;
      --bg-slate: #F8FAFC;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: #ffffff;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-gradient {
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    }
    .card-hover {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -8px rgba(0, 128, 128, 0.12);
      border-color: rgba(0, 212, 178, 0.4);
    }
    .chip-badge {
      background: rgba(0, 212, 178, 0.1);
      border: 1px solid rgba(0, 212, 178, 0.3);
      color: #008080;
    }