:root {
            --primary-color: #1a237e;
            --secondary-color: #d32f2f;
            --accent-color: #ff9800;
            --light-bg: #f5f5f5;
            --dark-text: #212121;
            --light-text: #757575;
            --transition: all 0.3s ease;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            padding: 0.5rem 1.2rem;
            transition: var(--transition);
            border-radius: 4px;
        }
        .navbar-nav .nav-link:hover {
            background-color: var(--primary-color);
            color: white !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #283593 100%);
            color: white;
            padding: 8rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
        }
        .hero-section .lead {
            font-size: 1.3rem;
            opacity: 0.9;
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--secondary-color);
            border-radius: 2px;
        }
        .service-card, .news-card, .case-card {
            height: 100%;
            border: none;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.08);
            transition: var(--transition);
            overflow: hidden;
        }
        .service-card:hover, .news-card:hover, .case-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .stats-label {
            font-size: 1.1rem;
            color: var(--light-text);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .team-member img {
            border-radius: 12px;
            transition: var(--transition);
        }
        .team-member:hover img {
            transform: scale(1.05);
        }
        .contact-form .form-control {
            padding: 0.8rem 1rem;
            border-radius: 8px;
            border: 1px solid #ddd;
            transition: var(--transition);
        }
        .contact-form .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 35, 126, 0.25);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #0d1847;
            border-color: #0d1847;
            transform: translateY(-3px);
        }
        .footer {
            background-color: #1a1a1a;
            color: #ccc;
            padding: 4rem 0 2rem;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .friendlink .flink {
            display: inline-block;
            padding: 0.5rem 1.5rem;
            margin: 0.5rem;
            background-color: #f0f0f0;
            border-radius: 50px;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .friendlink .flink:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .schema-hidden {
            display: none;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .stats-number {
                font-size: 2.5rem;
            }
        }
        .content-article {
            font-size: 1.1rem;
            text-align: justify;
        }
        .content-article h3 {
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .content-article p {
            margin-bottom: 1.5rem;
        }