:root {
            --primary-color: #1a365d;
            --secondary-color: #d4af37;
            --accent-color: #2d6a4f;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            overflow-x: hidden;
            line-height: 1.6;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 600;
            color: var(--primary-color);
        }
        .navbar {
            background-color: rgba(26, 54, 93, 0.95);
            backdrop-filter: blur(10px);
            padding-top: 0.8rem;
            padding-bottom: 0.8rem;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 700;
            color: white !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem !important;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: white !important;
            background-color: rgba(255, 255, 255, 0.1);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
            color: white;
            padding: 8rem 0 6rem;
            margin-top: 76px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .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-color: var(--secondary-color);
        }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.12);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background-color: rgba(212, 175, 55, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: var(--secondary-color);
            font-size: 1.8rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.75rem 2rem;
            font-weight: 500;
            border-radius: 6px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #152642;
            border-color: #152642;
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(26, 54, 93, 0.2);
        }
        .btn-outline-light {
            border-radius: 6px;
            padding: 0.75rem 2rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        footer {
            background-color: var(--primary-color);
            color: rgba(255, 255, 255, 0.85);
            padding-top: 4rem;
        }
        footer h5 {
            color: white;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.75rem;
        }
        footer h5:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background-color: var(--secondary-color);
        }
        footer a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .social-links a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-right: 10px;
            transition: var(--transition);
        }
        .social-links a:hover {
            background-color: var(--secondary-color);
            color: var(--primary-color);
            transform: translateY(-5px);
        }
        .friendlink {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 3rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .flink {
            display: inline-block;
            color: rgba(255, 255, 255, 0.75);
            background-color: rgba(255, 255, 255, 0.05);
            padding: 0.6rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .flink:hover {
            background-color: var(--secondary-color);
            color: var(--primary-color);
            border-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        .copyright {
            background-color: rgba(0, 0, 0, 0.2);
            padding: 1.5rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background-color: var(--secondary-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: var(--secondary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-color);
            line-height: 1;
        }
        .stat-label {
            color: #666;
            font-size: 1.1rem;
        }
        .contact-info-box {
            background-color: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
            text-align: center;
            height: 100%;
            transition: var(--transition);
        }
        .contact-info-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .contact-info-box i {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
        }
        .form-control, .form-select {
            border-radius: 8px;
            padding: 0.75rem 1rem;
            border: 1px solid #ddd;
            transition: var(--transition);
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 54, 93, 0.25);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            color: var(--primary-color);
            transform: translateY(-5px);
        }
        .news-card .card-body {
            padding: 1.5rem;
        }
        .news-date {
            color: #888;
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
        }
        .partner-logo {
            background-color: white;
            border-radius: 10px;
            padding: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 120px;
            border: 1px solid #eee;
            transition: var(--transition);
        }
        .partner-logo img {
            max-width: 100%;
            max-height: 70px;
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
        }
        .partner-logo:hover {
            border-color: var(--secondary-color);
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.05);
            transform: translateY(-5px);
        }
        .partner-logo:hover img {
            filter: grayscale(0);
            opacity: 1;
        }