:root {
            --primary-color: #0a3d62;
            --secondary-color: #1e90ff;
            --accent-color: #ff9f43;
            --light-color: #f8f9fa;
            --dark-color: #2d3436;
            --text-color: #333;
            --transition-speed: 0.3s;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            color: var(--primary-color);
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .container-fluid {
            padding-left: 0;
            padding-right: 0;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.97);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            padding: 1rem 0;
            transition: all var(--transition-speed);
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            color: var(--dark-color) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem !important;
            border-radius: 4px;
            transition: all var(--transition-speed);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--secondary-color) !important;
            background-color: rgba(30, 144, 255, 0.05);
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(10, 61, 98, 0.85), rgba(10, 61, 98, 0.9)), url('https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding: 100px 0;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.5rem;
        }
        .hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            max-width: 800px;
        }
        .btn-primary-custom {
            background-color: var(--secondary-color);
            border: none;
            padding: 0.9rem 2.2rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all var(--transition-speed);
            box-shadow: 0 6px 15px rgba(30, 144, 255, 0.3);
        }
        .btn-primary-custom:hover {
            background-color: #0a7cff;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(30, 144, 255, 0.4);
        }
        .service-card, .news-card, .partner-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: all var(--transition-speed);
            height: 100%;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            background-color: white;
        }
        .service-card:hover, .news-card:hover, .partner-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        .service-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--secondary-color), #4bcffa);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 2rem;
            color: white;
        }
        .carousel-item img {
            height: 500px;
            object-fit: cover;
        }
        .carousel-caption {
            background: rgba(0, 0, 0, 0.6);
            border-radius: 10px;
            padding: 2rem;
            bottom: 20%;
            left: 10%;
            right: 10%;
        }
        .counter-section {
            background: linear-gradient(to right, var(--primary-color), #1a5276);
            color: white;
            padding: 80px 0;
        }
        .counter-item {
            text-align: center;
        }
        .counter-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--accent-color);
            display: block;
            line-height: 1;
            margin-bottom: 0.5rem;
        }
        .counter-text {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        .timeline {
            position: relative;
            padding-left: 2rem;
            margin-left: 1rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--secondary-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
            padding-left: 2rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2.45rem;
            top: 0.5rem;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--secondary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--secondary-color);
        }
        .footer {
            background-color: #0a2539;
            color: #c2c7cc;
            padding-top: 4rem;
            padding-bottom: 2rem;
        }
        .footer h5 {
            color: white;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.8rem;
        }
        .footer h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--secondary-color);
        }
        .footer a {
            color: #c2c7cc;
            text-decoration: none;
            transition: color var(--transition-speed);
        }
        .footer a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .footer-bottom {
            border-top: 1px solid #2c3e50;
            margin-top: 3rem;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.9rem;
        }
        .friendlinks {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .flink {
            background-color: #1a344d;
            border-radius: 8px;
            padding: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all var(--transition-speed);
            border: 1px solid #2c3e50;
        }
        .flink:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            color: white;
        }
        .flink i {
            margin-right: 10px;
            font-size: 1.2rem;
        }
        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.8rem;
            }
            .carousel-caption {
                bottom: 10%;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-subtitle {
                font-size: 1.1rem;
            }
            .navbar-brand {
                font-size: 1.5rem;
            }
            .counter-number {
                font-size: 2.8rem;
            }
            .friendlinks {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .hero-section {
                min-height: 70vh;
                padding: 60px 0;
            }
            .carousel-item img {
                height: 350px;
            }
            .friendlinks {
                grid-template-columns: 1fr;
            }
        }
        section {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3.5rem;
            position: relative;
        }
        .section-title h2 {
            font-size: 2.5rem;
            display: inline-block;
            padding-bottom: 1rem;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            border-radius: 2px;
        }
        .bg-light-section {
            background-color: #f8fafc;
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(30, 144, 255, 0.05);
            color: var(--primary-color);
            box-shadow: none;
        }
        .contact-info-item {
            display: flex;
            align-items: center;
            margin-bottom: 1.5rem;
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: rgba(30, 144, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            color: var(--secondary-color);
            font-size: 1.2rem;
        }
        .map-container {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            height: 400px;
        }
        .partner-logo {
            height: 80px;
            object-fit: contain;
            filter: grayscale(0.7);
            transition: filter var(--transition-speed);
        }
        .partner-card:hover .partner-logo {
            filter: grayscale(0);
        }