@layer utilities {
      .content-auto {
        content-visibility: auto;
      }
      .text-gradient {
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
      }
      .bg-grid {
        background-image: radial-gradient(rgba(22, 93, 255, 0.1) 1px, transparent 1px);
        background-size: 30px 30px;
      }
      .scrollbar-hide {
        -ms-overflow-style: none;
        scrollbar-width: none;
      }
      .scrollbar-hide::-webkit-scrollbar {
        display: none;
      }
      .animate-float {
        animation: float 6s ease-in-out infinite;
      }
      .animate-float-delay-1 {
        animation: float 6s ease-in-out 1s infinite;
      }
      .animate-float-delay-2 {
        animation: float 6s ease-in-out 2s infinite;
      }
      .animate-pulse-slow {
        animation: pulse 4s cubic-bezier(0.4, 0, 0.6, 1) infinite;
      }
      @keyframes float {
        0% { transform: translateY(0px); }
        50% { transform: translateY(-20px); }
        100% { transform: translateY(0px); }
      }
      /* 下拉菜单样式 */
      .dropdown {
        position: relative;
      }
      .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 200px;
        background-color: rgba(10, 15, 28, 0.95);
        backdrop-filter: blur-lg;
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 0.5rem;
        padding: 0.5rem 0;
        margin-top: 0.5rem;
        z-index: 100;
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        transition: all 0.3s ease;
      }
      .dropdown:hover .dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
      }
      .dropdown-item {
        display: block;
        padding: 0.75rem 1rem;
        color: rgba(241, 245, 249, 0.8);
        text-decoration: none;
        transition: all 0.2s ease;
      }
      .dropdown-item:hover {
        background-color: rgba(22, 93, 255, 0.2);
        color: #fff;
      }
      #mobile-menu {
        background-color: rgba(10, 15, 28, 0.95);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
      }
    }