/* roulang page: index */
:root {
      --brand-primary: #0284C7;
      --brand-dark: #0F172A;
      --brand-mint: #10B981;
      --brand-violet: #8B5CF6;
      --brand-gray: #64748B;
      --brand-bg: #F8FAFC;
      --card-radius: 1.25rem;
      --shadow-smooth: 0 10px 30px -10px rgba(2, 132, 199, 0.08);
      --shadow-hover: 0 20px 35px -10px rgba(2, 132, 199, 0.16);
    }
    
    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(--brand-bg);
      color: #1E293B;
      overflow-x: hidden;
    }

    .hero-bg-container {
      background-image: linear-gradient(to right, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.82)), url('/assets/images/a51eb9d6e0ec338a.webp');
      background-size: cover;
      background-position: center;
    }

    .deep-tech-bg {
      background-image: linear-gradient(180deg, #0B0F19 0%, #0F172A 100%);
    }

    .card-glass {
      background: #FFFFFF;
      border: 1px solid rgba(226, 232, 240, 0.85);
      border-radius: var(--card-radius);
      box-shadow: var(--shadow-smooth);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .card-glass:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(2, 132, 199, 0.3);
    }

    .badge-glow {
      position: relative;
      overflow: hidden;
    }
    .badge-glow::after {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
      pointer-events: none;
    }

    /* 抽屉导航过渡 */
    #mobile-menu {
      transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
    }