:root {
            --primary-color: #1a365d;
            --secondary-color: #2d3748;
            --accent-color: #3182ce;
            --light-color: #f8f9fa;
            --text-color: #2d3748;
            --border-color: #e2e8f0;
        }
        body {
            font-family: 'Noto Sans SC', 'Segoe UI', system-ui, -apple-system, sans-serif;
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2c5282 100%);
            color: white;
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000" opacity="0.05"><path d="M0,500c0-138,112-250,250-250s250,112,250,250s-112,250-250,250S0,638,0,500z" fill="white"/></svg>') repeat;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            color: var(--primary-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background-color: var(--accent-color);
        }
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid var(--border-color);
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1) !important;
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--accent-color), #63b3ed);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: white;
            font-size: 1.8rem;
        }
        .team-member {
            text-align: center;
            margin-bottom: 30px;
        }
        .team-img {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin-bottom: 20px;
        }
        .contact-info-box {
            padding: 25px;
            border-radius: 10px;
            background-color: var(--light-color);
            border-left: 4px solid var(--accent-color);
            margin-bottom: 20px;
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px 10px;
            background-color: var(--light-color);
            border-radius: 30px;
            color: var(--secondary-color);
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
        }
        .flink:hover {
            background-color: var(--accent-color);
            color: white;
            transform: translateY(-2px);
        }
        .footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer a {
            color: #cbd5e0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--accent-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 1000;
            cursor: pointer;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-color);
            margin-bottom: 5px;
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background-color: var(--accent-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: var(--accent-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--accent-color);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 100px 0 60px;
            }
            .section-title {
                margin-bottom: 30px;
            }
            .team-img {
                width: 150px;
                height: 150px;
            }
        }