* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif, '微软雅黑', '宋体';
            line-height: 1.8;
            color: #333;
            background-color: #f8f9fa;
        }
        
        header {
            background: linear-gradient(135deg, #8B0000 0%, #DC143C 50%, #FFD700 100%);
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 28px;
            font-weight: bold;
            color: #fff;
            text-decoration: none;
        }
        
        nav {
            display: flex;
            gap: 30px;
            align-items: center;
        }
        
        nav a {
            color: #fff;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 8px 16px;
            border-radius: 4px;
        }
        
        nav a:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        
        .nav-active {
            background-color: rgba(255,255,255,0.3);
            border-bottom: 3px solid #FFD700;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .hero-section {
            background: linear-gradient(135deg, #8B0000 0%, #DC143C 50%, #FFD700 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
            margin-bottom: 60px;
        }
        
        .hero-section h1 {
            font-size: 48px;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        
        .hero-section p {
            font-size: 20px;
            margin-bottom: 10px;
            opacity: 0.95;
        }
        
        .seal-icon {
            max-width: 200px;
            margin: 30px auto;
            display: block;
            filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
        }
        
        .content-section {
            background: white;
            padding: 60px 40px;
            margin-bottom: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        
        .content-section h2 {
            color: #8B0000;
            font-size: 32px;
            margin-bottom: 30px;
            border-bottom: 3px solid #FFD700;
            padding-bottom: 15px;
        }
        
        .content-section h3 {
            color: #DC143C;
            font-size: 24px;
            margin-top: 30px;
            margin-bottom: 15px;
        }
        
        .content-section p {
            margin-bottom: 15px;
            text-align: justify;
            font-size: 16px;
            line-height: 1.9;
        }
        
        .highlight {
            background-color: #FFF8DC;
            padding: 20px;
            border-left: 4px solid #FFD700;
            margin: 20px 0;
            border-radius: 4px;
        }
        
        .highlight strong {
            color: #8B0000;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        
        .stat-card {
            background: linear-gradient(135deg, #8B0000 0%, #DC143C 100%);
            color: white;
            padding: 30px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            transition: transform 0.3s ease;
        }
        
        .stat-card:hover {
            transform: translateY(-5px);
        }
        
        .stat-number {
            font-size: 36px;
            font-weight: bold;
            margin-bottom: 10px;
            color: #FFD700;
        }
        
        .stat-label {
            font-size: 16px;
            opacity: 0.95;
        }
        
        .certification-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin: 20px 0;
        }
        
        .cert-item {
            background: #f0f0f0;
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid #FFD700;
            transition: all 0.3s ease;
        }
        
        .cert-item:hover {
            background: #e8e8e8;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        
        .cert-item h4 {
            color: #8B0000;
            margin-bottom: 10px;
            font-size: 16px;
        }
        
        .cert-item p {
            font-size: 14px;
            color: #666;
            margin: 0;
        }
        
        .timeline {
            position: relative;
            padding: 20px 0;
        }
        
        .timeline-item {
            margin-bottom: 30px;
            padding-left: 40px;
            position: relative;
        }
        
        .timeline-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 20px;
            height: 20px;
            background: #FFD700;
            border: 3px solid #8B0000;
            border-radius: 50%;
        }
        
        .timeline-item::after {
            content: '';
            position: absolute;
            left: 8px;
            top: 20px;
            width: 4px;
            height: 30px;
            background: #FFD700;
        }
        
        .timeline-item:last-child::after {
            display: none;
        }
        
        .timeline-year {
            font-weight: bold;
            color: #8B0000;
            font-size: 18px;
            margin-bottom: 5px;
        }
        
        .timeline-content {
            color: #666;
            font-size: 14px;
        }
        
        .cta-button {
            display: inline-block;
            background: linear-gradient(135deg, #8B0000 0%, #DC143C 100%);
            color: white;
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            transition: all 0.3s ease;
            margin-top: 20px;
            box-shadow: 0 4px 12px rgba(139, 0, 0, 0.3);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(139, 0, 0, 0.4);
        }
        
        footer {
            background: #333;
            color: white;
            text-align: center;
            padding: 30px 20px;
            margin-top: 60px;
        }
        
        footer p {
            margin: 5px 0;
        }
        
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 32px;
            }
            
            .content-section {
                padding: 30px 20px;
            }
            
            .content-section h2 {
                font-size: 24px;
            }
            
            nav {
                gap: 15px;
            }
            
            nav a {
                padding: 6px 12px;
                font-size: 14px;
            }
        }