:root {
            --primary-color: #3b82f6;
            --secondary-color: #8b5cf6;
            --dark-color: #0f172a;
            --light-color: #f1f5f9;
            --gray-color: #94a3b8;
            --success-color: #10b981;
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --bg-card: #1e293b;
            --text-primary: #f1f5f9;
            --text-secondary: #cbd5e1;
            --border-color: #334155;
        }
        body {
            font-family: 'Noto Sans SC', 'Inter', sans-serif;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            line-height: 1.6;
            overflow-x: hidden;
            font-weight: 300;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Inter', sans-serif;
            font-weight: 300;
        }
        .navbar {
            background-color: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            padding: 1rem 0;
            transition: all 0.3s ease;
            border-bottom: 1px solid var(--border-color);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-brand img {
            height: 50px;
        }
        .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            color: var(--text-secondary) !important;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
        }
        .hero-section {
            color: white;
            padding: 8rem 0 6rem;
            position: relative;
            overflow: hidden;
            background-image: url('../images/pic-products-bb31.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 1;
        }
        /* Starfield Styles */
        .starfield {
            z-index: 2;
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 100%;
            opacity: 0.8;
            pointer-events: none;
        }
        #space {
            width: 100%;
            height: 100%;
            pointer-events: none;
        }

        .hero-title {
            font-size: 3.9rem;
            font-weight: 300;
            margin-bottom: 1.5rem;
        }
        .hero-subtitle {
            font-size: 1.5rem;
            font-weight: 300;
            margin-bottom: 2.5rem;
            max-width: 700px;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.8rem 2rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: #2563eb;
            border-color: #2563eb;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
        }
        .section-padding {
            padding: 6rem 0;
        }
        .section-title {
            font-size: 2.5rem;
            font-weight: 300;
            margin-bottom: 3rem;
            color: var(--text-primary);
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -10px;
            width: 60px;
            height: 4px;
            background: var(--primary-color);
            border-radius: 2px;
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
            border: 1px solid var(--border-color);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .feature-title {
            font-size: 1.5rem;
            font-weight: 300;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .feature-desc {
            color: var(--text-secondary);
        }
        .about-content {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }
        .core-ability {
            background-color: var(--bg-card);
            border-radius: 15px;
            padding: 3rem;
            margin-bottom: 2rem;
            border: 1px solid var(--border-color);
        }
        .core-ability h3 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary-color);
            border-radius: 1.5px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--primary-color);
            border: 3px solid var(--bg-card);
            box-shadow: 0 0 0 3px var(--primary-color);
        }
        .timeline-title {
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .footer {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            padding: 5rem 0 2rem;
            border-top: 1px solid var(--border-color);
        }
        .footer-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }
        .footer-links {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--text-primary);
        }
        .contact-info {
            color: var(--text-secondary);
        }
        .contact-info i {
            color: var(--primary-color);
            margin-right: 10px;
            width: 20px;
        }
        .copyright {
            border-top: 1px solid var(--border-color);
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
            color: var(--gray-color);
            font-size: 0.9rem;
        }
        .hero-section .container.position-relative {
            z-index: 10;
            position: relative;
        }
        .bg-light {
            background-color: var(--bg-secondary) !important;
        }
        .navbar-toggler {
            border-color: var(--border-color);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .btn-outline-primary {
            color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-subtitle {
                font-size: 1.2rem;
            }
            .hero-section {
                padding: 4rem 0;
                min-height: 80vh;
            }
            .section-padding {
                padding: 4rem 0;
            }
            .section-title {
                font-size: 2rem;
            }
        }