/* 子产品导航样式 */
        .top-bar {
            background: #0f172a;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .top-bar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-bar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #f1f5f9;
            font-weight: 500;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .top-bar-brand:hover {
            color: white;
        }

        .top-bar-brand img {
            width: 20px;
            height: 20px;
        }

        .top-bar-brand .breadcrumb {
            color: #64748b;
            margin: 0 0.25rem;
            font-size: 0.7rem;
        }

        .top-bar-brand .current {
            color: #60a5fa;
        }

        .top-bar-products {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .top-bar-products a {
            color: #94a3b8;
            text-decoration: none;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .top-bar-products a:hover {
            color: white;
            background: rgba(255, 255, 255, 0.1);
        }

        .top-bar-products a.home {
            color: #94a3b8;
        }

        .top-bar-products a.network {
            color: #34d399;
        }

        .top-bar-products a.network:hover {
            background: rgba(16, 185, 129, 0.2);
        }

        .navbar {
            top: 36px;
        }

        .hero {
            padding-top: 156px;
        }

        @media (max-width: 768px) {
            .top-bar-links {
                display: none;
            }
        }