:root {
            --primary: #0d6efd;
            --secondary: #6c757d;
            --success: #198754;
            --dark-blue: #1e3a8a;
            --light-blue: #e8f4ff;
            --dark: #212529;
            --light: #f8f9fa;
        }
        body {
            font-family: 'Noto Sans SC', 'Roboto', sans-serif;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-blue);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--dark-blue) !important;
        }
        .navbar-brand span {
            color: var(--primary);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary) 100%);
            color: white;
            padding: 8rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" preserveAspectRatio="none"><path d="M1200 120L0 16.48 0 0 1200 0 1200 120z" fill="white"/></svg>');
            background-size: 100% 100px;
            background-position: bottom;
            background-repeat: no-repeat;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 3rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-title.text-start::after {
            left: 0;
            transform: none;
        }
        .card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: all 0.4s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.12);
        }
        .card-icon {
            width: 80px;
            height: 80px;
            background: var(--light-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 2rem;
            color: var(--primary);
        }
        .product-img {
            height: 200px;
            object-fit: cover;
            border-top-left-radius: 12px;
            border-top-right-radius: 12px;
        }
        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
            padding: 0.75rem 2rem;
            border-radius: 8px;
            font-weight: 500;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--dark-blue);
            border-color: var(--dark-blue);
            transform: scale(1.05);
        }
        .bg-light-custom {
            background-color: var(--light-blue);
        }
        .contact-info-box {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            height: 100%;
            transition: transform 0.3s;
        }
        .contact-info-box:hover {
            transform: translateY(-5px);
        }
        .contact-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .footer {
            background-color: var(--dark);
            color: rgba(255,255,255,0.8);
        }
        .footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: white;
        }
        .flink {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.9);
            padding: 0.5rem 1.5rem;
            border-radius: 6px;
            margin: 0.3rem;
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .flink:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            opacity: 0;
            transition: all 0.3s;
            z-index: 1000;
        }
        .back-to-top.active {
            opacity: 1;
        }
        .back-to-top:hover {
            background-color: var(--dark-blue);
            color: white;
            transform: scale(1.1);
        }
        .timeline {
            position: relative;
            padding-left: 2rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 0;
            height: 100%;
            width: 2px;
            background: var(--primary);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2.2rem;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--primary);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }