:root {
            --primary-color: #1a6ae4;
            --secondary-color: #0c4da2;
            --accent-color: #00c9a7;
            --dark-color: #2d3748;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: all 0.3s;
            margin: 0 5px;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            top: -100px;
            right: -100px;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 50px;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--accent-color);
            bottom: 0;
            left: 0;
            border-radius: 2px;
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: all 0.4s;
            height: 100%;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .feature-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(26, 106, 228, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary-color);
            font-size: 2rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .btn-outline-primary {
            color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .about-img {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-card {
            background: white;
            border-radius: 15px;
            padding: 40px 30px;
            height: 100%;
            transition: all 0.4s;
            border: 1px solid #eee;
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--accent-color);
            transition: all 0.4s;
        }
        .service-card:hover {
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
            transform: translateY(-10px);
        }
        .service-card:hover::before {
            width: 100%;
            opacity: 0.1;
        }
        .portfolio-item {
            border-radius: 15px;
            overflow: hidden;
            position: relative;
            margin-bottom: 30px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }
        .portfolio-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(26, 106, 228, 0.85);
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 30px;
            opacity: 0;
            transition: all 0.4s;
        }
        .portfolio-item:hover .portfolio-overlay {
            opacity: 1;
        }
        .news-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: all 0.4s;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .news-date {
            position: absolute;
            top: 15px;
            left: 15px;
            background: var(--primary-color);
            color: white;
            padding: 8px 15px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .contact-info {
            background: var(--light-color);
            border-radius: 15px;
            padding: 30px;
            height: 100%;
            border-left: 5px solid var(--accent-color);
        }
        .contact-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(26, 106, 228, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .friendlink {
            background: var(--light-color);
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 15px 25px;
            border-radius: 10px;
            margin: 10px;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            border: 1px solid #eee;
        }
        .flink:hover {
            color: var(--primary-color);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            border-color: var(--primary-color);
        }
        footer {
            background: var(--dark-color);
            color: white;
            padding: 80px 0 30px;
        }
        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: all 0.3s;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .social-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: white;
            margin-right: 10px;
            transition: all 0.3s;
        }
        .social-icon:hover {
            background: var(--primary-color);
            transform: translateY(-5px);
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 50px;
            color: #bbb;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }