:root {
            --primary-color: #1a5fb4;
            --secondary-color: #2ec27e;
            --dark-color: #1a1a1a;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: var(--dark-color);
            line-height: 1.8;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
        }
        .navbar-brand span {
            color: var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #0d4a9c 100%);
            color: white;
            padding: 8rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            animation: fadeInUp 1s ease;
        }
        .hero-section p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            animation: fadeInUp 1s ease 0.3s both;
        }
        .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: var(--secondary-color);
            border-radius: 2px;
        }
        .service-card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: rgba(26, 95, 180, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        .case-study {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
        }
        .case-study:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.12);
        }
        .team-member {
            text-align: center;
            margin-bottom: 2rem;
        }
        .team-member img {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            margin-bottom: 1.5rem;
            border: 5px solid var(--light-color);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .news-card {
            border-left: 4px solid var(--primary-color);
            padding-left: 1.5rem;
            margin-bottom: 2rem;
            transition: all 0.3s ease;
        }
        .news-card:hover {
            border-left-color: var(--secondary-color);
            padding-left: 2rem;
        }
        .contact-info-box {
            background: var(--light-color);
            border-radius: 12px;
            padding: 2rem;
            text-align: center;
            height: 100%;
            transition: all 0.3s ease;
        }
        .contact-info-box:hover {
            background: white;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .contact-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary-color);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 1.5rem;
        }
        .friendlink {
            background: var(--light-color);
            padding: 4rem 0;
        }
        .flink {
            display: inline-block;
            background: white;
            border-radius: 8px;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #eaeaea;
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(26, 95, 180, 0.2);
            border-color: var(--primary-color);
        }
        footer {
            background: var(--dark-color);
            color: rgba(255,255,255,0.8);
            padding: 4rem 0 2rem;
        }
        footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        footer a:hover {
            color: white;
        }
        .footer-links h5 {
            color: white;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.8rem;
        }
        .footer-links h5:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--secondary-color);
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
            font-size: 0.9rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: #0d4a9c;
            border-color: #0d4a9c;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(26, 95, 180, 0.3);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .btn-secondary:hover {
            background-color: #26a269;
            border-color: #26a269;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(46, 194, 126, 0.3);
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
            }
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .section-title {
                margin-bottom: 2rem;
            }
        }