:root {
            --primary-color: #1a56db;
            --secondary-color: #7e3af2;
            --accent-color: #0ea5e9;
            --light-color: #f8fafc;
            --dark-color: #1e293b;
            --success-color: #10b981;
            --warning-color: #f59e0b;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--dark-color);
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            padding-top: 0.8rem;
            padding-bottom: 0.8rem;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 800;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        .nav-link {
            font-weight: 600;
            color: var(--dark-color) !important;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem !important;
            border-radius: 0.375rem;
            transition: all 0.3s ease;
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--primary-color);
            color: white !important;
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(26, 86, 219, 0.9) 0%, rgba(126, 58, 242, 0.85) 100%), url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center;
            background-size: cover;
            color: white;
            padding: 8rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            color: white;
        }
        .hero-section p {
            font-size: 1.25rem;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        .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: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        .service-card {
            border: none;
            border-radius: 1rem;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            height: 100%;
            background-color: white;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
        }
        .service-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 2rem auto 1.5rem;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            font-size: 2rem;
        }
        .stats-counter {
            font-size: 3rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }
        .testimonial-card {
            background-color: white;
            border-radius: 1rem;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            height: 100%;
            border-left: 5px solid var(--primary-color);
        }
        .testimonial-avatar {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid var(--light-color);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .contact-info-box {
            background-color: white;
            border-radius: 1rem;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            text-align: center;
            height: 100%;
            transition: all 0.3s ease;
            border-top: 4px solid var(--primary-color);
        }
        .contact-info-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        .contact-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding-top: 4rem;
        }
        .footer-link {
            color: #cbd5e1;
            text-decoration: none;
            display: block;
            margin-bottom: 0.75rem;
            transition: color 0.3s ease;
        }
        .footer-link:hover {
            color: white;
            text-decoration: underline;
        }
        friendlink {
            display: block;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #374151;
        }
        .flink {
            display: inline-block;
            background-color: #374151;
            color: #cbd5e1;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            margin-right: 0.75rem;
            margin-bottom: 0.75rem;
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            text-decoration: none;
            box-shadow: 0 5px 15px rgba(26, 86, 219, 0.3);
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            transform: translateY(-5px);
        }
        .news-card {
            border: none;
            border-radius: 1rem;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        .news-date {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background-color: var(--primary-color);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 0.5rem;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .btn-primary {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 0.5rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(26, 86, 219, 0.2);
        }
        .btn-outline-primary {
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
            font-weight: 600;
            padding: 0.75rem 2rem;
            border-radius: 0.5rem;
            transition: all 0.3s ease;
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(26, 86, 219, 0.2);
        }
        .form-control, .form-select {
            padding: 0.75rem 1rem;
            border-radius: 0.5rem;
            border: 1px solid #d1d5db;
            transition: all 0.3s ease;
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 5rem 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .stats-counter {
                font-size: 2.5rem;
            }
        }