:root {
            --primary-color: #dc3545;
            --secondary-color: #198754;
            --dark-color: #212529;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-color);
            overflow-x: hidden;
            line-height: 1.7;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1551958219-acbc608c6377?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 180px 0 120px;
            position: relative;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
            margin-bottom: 1.5rem;
        }
        .hero-section p {
            font-size: 1.3rem;
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        .section-padding {
            padding: 100px 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--primary-color);
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            height: 100%;
            transition: var(--transition);
            border: 1px solid #eee;
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.12);
        }
        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-color), #ff6b6b);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 1.5rem;
        }
        .stats-section {
            background: linear-gradient(135deg, var(--dark-color), #343a40);
            color: white;
            padding: 80px 0;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.9);
        }
        .service-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
            transition: var(--transition);
            height: 100%;
            border: none;
        }
        .service-card:hover {
            transform: scale(1.03);
            box-shadow: 0 15px 35px rgba(0,0,0,0.15);
        }
        .service-card img {
            height: 220px;
            object-fit: cover;
            width: 100%;
        }
        .service-card .card-body {
            padding: 30px;
        }
        .partner-logo {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 15px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .partner-logo:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .partner-logo img {
            max-height: 100%;
            max-width: 100%;
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
        }
        .partner-logo:hover img {
            filter: grayscale(0);
            opacity: 1;
        }
        .testimonial-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            margin: 15px;
            position: relative;
            border-left: 5px solid var(--primary-color);
        }
        .testimonial-card:before {
            content: "\201C";
            font-size: 5rem;
            color: rgba(220, 53, 69, 0.1);
            position: absolute;
            top: -10px;
            left: 20px;
            font-family: Georgia, serif;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            margin-top: 20px;
        }
        .testimonial-author img {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 15px;
            border: 3px solid var(--light-color);
        }
        .friendlink {
            background: #f8f9fa;
            padding: 60px 0;
            border-top: 1px solid #eee;
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px 10px;
            background: white;
            border-radius: 50px;
            color: var(--dark-color);
            text-decoration: none;
            border: 1px solid #ddd;
            transition: var(--transition);
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        footer {
            background: var(--dark-color);
            color: rgba(255,255,255,0.8);
            padding: 70px 0 30px;
        }
        footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            margin-top: 50px;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        .contact-info {
            background: linear-gradient(135deg, var(--secondary-color), #20c997);
            color: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 15px 35px rgba(25, 135, 84, 0.2);
        }
        .contact-icon {
            width: 60px;
            height: 60px;
            background: rgba(255,255,255,0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .btn-primary-custom {
            background: var(--primary-color);
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background: #c82333;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(220, 53, 69, 0.3);
        }
        .btn-secondary-custom {
            background: var(--secondary-color);
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            color: white;
            transition: var(--transition);
        }
        .btn-secondary-custom:hover {
            background: #157347;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(25, 135, 84, 0.3);
            color: white;
        }
        .nav-link {
            font-weight: 600;
            padding: 8px 15px !important;
            margin: 0 5px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            background: rgba(220, 53, 69, 0.1);
            color: var(--primary-color) !important;
        }
        @media (max-width: 992px) {
            .hero-section h1 {
                font-size: 2.8rem;
            }
            .section-padding {
                padding: 70px 0;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 120px 0 80px;
            }
            .hero-section h1 {
                font-size: 2.3rem;
            }
            .hero-section p {
                font-size: 1.1rem;
            }
            .feature-card, .testimonial-card {
                padding: 20px;
                margin-bottom: 20px;
            }
        }
        .content-area {
            font-size: 1.1rem;
            max-width: 900px;
            margin: 0 auto;
        }
        .content-area h3 {
            color: var(--primary-color);
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
        }
        .content-area p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(to right, rgba(220, 53, 69, 0.05), rgba(25, 135, 84, 0.05));
            border-left: 4px solid var(--primary-color);
            padding: 25px;
            border-radius: 0 10px 10px 0;
            margin: 30px 0;
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(10px);
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            transition: var(--transition);
        }