:root {
            --primary-color: #2563eb;
            --secondary-color: #0ea5e9;
            --accent-color: #8b5cf6;
            --dark-color: #1e293b;
            --light-color: #f8fafc;
            --gray-color: #64748b;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary-color);
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(14, 165, 233, 0.05) 100%);
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 80%;
            height: 150%;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
            z-index: 0;
        }
        .hero-content h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
        }
        .hero-content p {
            font-size: 1.2rem;
            color: var(--gray-color);
            margin-bottom: 2rem;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
            background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
        }
        .section-title {
            text-align: center;
            margin-bottom: 3.5rem;
            position: relative;
        }
        .section-title h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        .section-title p {
            color: var(--gray-color);
            max-width: 700px;
            margin: 0 auto;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        .service-card {
            background: white;
            border-radius: 15px;
            padding: 2.5rem 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            height: 100%;
            border: 1px solid rgba(0, 0, 0, 0.03);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(37, 99, 235, 0.1);
            border-color: rgba(37, 99, 235, 0.1);
        }
        .service-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        .portfolio-item {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            background: white;
            height: 100%;
        }
        .portfolio-item:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }
        .portfolio-img {
            height: 250px;
            overflow: hidden;
        }
        .portfolio-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .portfolio-item:hover .portfolio-img img {
            transform: scale(1.05);
        }
        .team-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        .team-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }
        .team-img {
            height: 280px;
            overflow: hidden;
        }
        .team-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .team-card:hover .team-img img {
            transform: scale(1.05);
        }
        .contact-info {
            background: white;
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            height: 100%;
        }
        .contact-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        footer {
            background: var(--dark-color);
            color: #e2e8f0;
            padding: 4rem 0 2rem;
        }
        footer a {
            color: #cbd5e1;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        footer a:hover {
            color: white;
        }
        .friendlink {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin: 2rem 0;
        }
        .flink {
            background: rgba(255, 255, 255, 0.05);
            padding: 8px 20px;
            border-radius: 50px;
            color: #cbd5e1;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-weight: 500;
        }
        .flink:hover {
            background: rgba(255, 255, 255, 0.1);
            color: white;
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .stat-item {
            text-align: center;
            padding: 2rem;
        }
        .testimonial-card {
            background: white;
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            margin: 1rem;
            position: relative;
        }
        .testimonial-card::before {
            content: "\f10d";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            top: 20px;
            left: 25px;
            font-size: 1.5rem;
            color: rgba(37, 99, 235, 0.1);
        }
        .news-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }
        .news-img {
            height: 200px;
            overflow: hidden;
        }
        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-img img {
            transform: scale(1.05);
        }
        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 2.5rem;
            }
            .section-title h2 {
                font-size: 2rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(37, 99, 235, 0.25);
        }