.fixed-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(135deg, rgba(0, 4, 40, 0.95) 0%, rgba(0, 78, 146, 0.95) 100%);
            backdrop-filter: blur(20px);
            border-bottom: 2px solid rgba(0, 212, 255, 0.4);
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .fixed-nav .breadcrumb-nav {
            width: 100%;
            justify-content: flex-end;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .fixed-nav .breadcrumb-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            color: #64d2ff;
            text-decoration: none;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
            line-height: 1;
            border: 1px solid transparent;
            text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
        }

        .fixed-nav .breadcrumb-nav a:hover {
            color: #fff;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.2) 0%, rgba(0, 112, 243, 0.2) 100%);
            border-color: rgba(0, 212, 255, 0.5);
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.4), inset 0 0 20px rgba(0, 212, 255, 0.1);
            transform: translateY(-2px);
        }

        .fixed-nav .breadcrumb-nav a.active {
            color: #000428;
            background: linear-gradient(135deg, #00d4ff 0%, #0070f3 100%);
            border-color: #00d4ff;
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.6), 0 0 80px rgba(0, 212, 255, 0.3);
            text-shadow: none;
        }

        .fixed-nav .breadcrumb-nav a.rainbow-link {
            background: linear-gradient(90deg, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #9400d3, #ff0000);
            background-size: 400% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: rainbowFlow 6s linear infinite;
            position: relative;
        }

        .fixed-nav .breadcrumb-nav a.rainbow-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #9400d3, #ff0000);
            background-size: 400% 100%;
            border-radius: 12px;
            opacity: 0.1;
            z-index: -1;
            animation: rainbowFlow 6s linear infinite;
        }

        .fixed-nav .breadcrumb-nav a.rainbow-link:hover {
            background: linear-gradient(90deg, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #9400d3, #ff0000);
            background-size: 400% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: rainbowFlow 3s linear infinite;
            border-color: rgba(255, 255, 255, 0.5);
            box-shadow: 0 0 30px rgba(255, 255, 255, 0.4), inset 0 0 20px rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .fixed-nav .breadcrumb-nav a.rainbow-link:hover::before {
            opacity: 0.2;
            animation: rainbowFlow 3s linear infinite;
        }

        .fixed-nav .breadcrumb-nav a.rainbow-link.active {
            background: linear-gradient(90deg, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #9400d3, #ff0000);
            background-size: 400% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: rainbowFlow 3s linear infinite;
            border-color: #fff;
            box-shadow: 0 0 40px rgba(255, 255, 255, 0.6), 0 0 80px rgba(255, 255, 255, 0.3);
            text-shadow: none;
        }

        .fixed-nav .breadcrumb-nav a.rainbow-link.active::before {
            opacity: 0.3;
            animation: rainbowFlow 3s linear infinite;
        }

        @keyframes rainbowFlow {
            0% {
                background-position: 0% 50%;
            }
            100% {
                background-position: 400% 50%;
            }
        }

        .fixed-nav .breadcrumb-nav a i {
            font-size: 14px;
        }

        body {
            padding-top: 70px;
        }

        @media (max-width: 768px) {
            body {
                padding-top: 80px;
            }

            .fixed-nav {
                height: auto;
                min-height: 60px;
                padding: 10px 0;
            }

            .fixed-nav .breadcrumb-nav {
                justify-content: center;
                padding: 0 15px;
            }

            .fixed-nav .breadcrumb-nav a {
                padding: 8px 14px;
                font-size: 13px;
            }
        }