:root {
            --primary-color: #1a5f7a;
            --secondary-color: #57cc99;
            --accent-color: #ff9a3c;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
            --gray-color: #6c757d;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand i {
            color: var(--accent-color);
        }
        .nav-link {
            font-weight: 500;
            transition: all 0.3s ease;
            margin: 0 5px;
        }
        .nav-link:hover {
            color: var(--accent-color) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 95, 122, 0.85), rgba(26, 95, 122, 0.9)), url('https://images.unsplash.com/photo-1533473359331-0135ef1b58bf?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') no-repeat center center/cover;
            color: white;
            padding: 120px 0 80px;
            position: relative;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .btn-primary-custom {
            background-color: var(--accent-color);
            border: none;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            background-color: #e6892a;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 50px;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
        }
        .service-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: all 0.4s ease;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }
        .service-card:hover .service-icon {
            color: var(--accent-color);
            transform: scale(1.1);
        }
        .feature-box {
            padding: 30px;
            border-radius: 10px;
            background: #fff;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
            transition: all 0.3s ease;
            border: 1px solid #eee;
        }
        .feature-box:hover {
            border-color: var(--secondary-color);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .stats-counter {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .carousel-indicators button {
            width: 12px !important;
            height: 12px !important;
            border-radius: 50%;
            margin: 0 5px;
        }
        .carousel-indicators button.active {
            background-color: var(--accent-color);
        }
        .testimonial-card {
            background: #fff;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            height: 100%;
            border-left: 5px solid var(--secondary-color);
        }
        .testimonial-avatar {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid var(--light-color);
        }
        .contact-info-box {
            background: var(--light-color);
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 20px;
            transition: all 0.3s ease;
            border-left: 4px solid var(--primary-color);
        }
        .contact-info-box:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }
        .contact-icon {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        .footer {
            background-color: var(--dark-color);
            color: #ccc;
            padding: 60px 0 30px;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: var(--secondary-color);
        }
        .footer-title {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary-color);
            display: inline-block;
        }
        .friendlink a.flink {
            display: inline-block;
            background: #f8f9fa;
            padding: 8px 20px;
            margin: 0 10px 10px 0;
            border-radius: 30px;
            color: #555;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #dee2e6;
        }
        .friendlink a.flink:hover {
            background: var(--secondary-color);
            color: white;
            border-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        .copyright {
            background-color: #212529;
            color: #aaa;
            padding: 20px 0;
            font-size: 0.9rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--accent-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--primary-color);
            color: white;
        }
        .whatsapp-float {
            position: fixed;
            bottom: 100px;
            right: 30px;
            width: 60px;
            height: 60px;
            background-color: #25D366;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .whatsapp-float:hover {
            background-color: #128C7E;
            transform: scale(1.1);
        }
        .badge-custom {
            background-color: var(--secondary-color);
            color: white;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .form-control-custom {
            border-radius: 10px;
            border: 1px solid #ced4da;
            padding: 12px 15px;
            transition: all 0.3s ease;
        }
        .form-control-custom:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 95, 122, 0.25);
        }