:root {
            --primary-blue: #0d6efd;
            --primary-dark: #052c65;
            --primary-light: #cfe2ff;
            --secondary-teal: #20c997;
            --accent-orange: #fd7e14;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
            --gray-border: #dee2e6;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
            color: white;
            padding: 8rem 0 6rem;
            clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
            margin-bottom: 4rem;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            font-weight: 600;
            color: var(--primary-dark);
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 4px;
            background: var(--secondary-teal);
            border-radius: 2px;
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;
        }
        .icon-box {
            width: 70px;
            height: 70px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary-blue);
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
        }
        .bg-light-custom {
            background-color: var(--light-bg);
        }
        .btn-primary-custom {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 0.75rem 2rem;
            font-weight: 500;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .btn-primary-custom:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: scale(1.05);
        }
        .flink {
            display: inline-block;
            padding: 0.5rem 1.5rem;
            margin: 0.5rem;
            background: white;
            border: 1px solid var(--gray-border);
            border-radius: 50px;
            color: var(--dark-text);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
        }
        .flink:hover {
            background: var(--primary-blue);
            color: white;
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .friendlink {
            background: var(--light-bg);
            border-top: 1px solid var(--gray-border);
            border-bottom: 1px solid var(--gray-border);
        }
        .footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
        }
        .footer a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .contact-info i {
            width: 24px;
            margin-right: 10px;
            color: var(--secondary-teal);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--primary-blue);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--secondary-teal);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--primary-blue);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 6rem 0 4rem;
                clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
            }
            .section-title {
                font-size: 1.8rem;
            }
            .stats-number {
                font-size: 2.5rem;
            }
        }