:root {
            --primary-color: #1a365d;
            --secondary-color: #e63946;
            --accent-color: #2a9d8f;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
            --text-color: #333;
            --border-radius: 8px;
            --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 600;
            color: var(--primary-color);
        }
        .navbar {
            background-color: rgba(26, 54, 93, 0.95) !important;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding-top: 0.8rem;
            padding-bottom: 0.8rem;
            transition: var(--transition);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: white !important;
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            padding: 0.5rem 1rem;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: white !important;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2c5282 100%);
            color: white;
            padding: 6rem 0;
            margin-top: 76px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2069&q=80') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 2.5rem;
            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);
            border-radius: 2px;
        }
        .section-title.left-align::after {
            left: 0;
            transform: none;
        }
        .card {
            border: none;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .card-img-top {
            border-radius: var(--border-radius) var(--border-radius) 0 0;
            height: 200px;
            object-fit: cover;
        }
        .service-icon {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #12243d;
            border-color: #12243d;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(26, 54, 93, 0.2);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background-color: #c1121f;
            border-color: #c1121f;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(230, 57, 70, 0.2);
        }
        .feature-box {
            padding: 2rem;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .feature-box:hover {
            transform: translateY(-10px);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }
        .news-card {
            border-left: 4px solid var(--accent-color);
            padding-left: 1.5rem;
            margin-bottom: 2rem;
        }
        .contact-info {
            padding: 2rem;
            background-color: var(--light-color);
            border-radius: var(--border-radius);
            height: 100%;
        }
        .contact-icon {
            font-size: 1.5rem;
            color: var(--accent-color);
            margin-right: 1rem;
            width: 30px;
            text-align: center;
        }
        .footer {
            background-color: var(--dark-color);
            color: rgba(255, 255, 255, 0.85);
            padding: 3rem 0 1.5rem;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
        }
        .flink {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            padding: 0.5rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            transition: var(--transition);
            text-decoration: none !important;
        }
        .flink:hover {
            background-color: var(--accent-color);
            transform: translateY(-3px);
            text-decoration: none !important;
        }
        .friendlink {
            background-color: var(--primary-color);
            color: white;
            padding: 3rem 0;
        }
        .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;
            font-size: 1.5rem;
            text-decoration: none;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
            z-index: 1000;
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: translateY(-5px);
        }
        .timeline {
            position: relative;
            padding: 2rem 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background-color: var(--accent-color);
        }
        .timeline-item {
            display: flex;
            margin-bottom: 3rem;
            position: relative;
        }
        .timeline-item:nth-child(odd) {
            flex-direction: row-reverse;
        }
        .timeline-content {
            width: 45%;
            padding: 1.5rem;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            position: relative;
        }
        .timeline-item:nth-child(even) .timeline-content {
            margin-left: auto;
        }
        .timeline-item:nth-child(odd) .timeline-content {
            margin-right: auto;
        }
        .timeline-content::before {
            content: '';
            position: absolute;
            top: 20px;
            width: 20px;
            height: 20px;
            background-color: var(--accent-color);
            border-radius: 50%;
        }
        .timeline-item:nth-child(even) .timeline-content::before {
            left: -10px;
            transform: translateX(-50%);
        }
        .timeline-item:nth-child(odd) .timeline-content::before {
            right: -10px;
            transform: translateX(50%);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 4rem 0;
                text-align: center;
            }
            .section-title::after {
                left: 50%;
                transform: translateX(-50%);
            }
            .timeline::before {
                left: 30px;
            }
            .timeline-item, .timeline-item:nth-child(odd) {
                flex-direction: row;
            }
            .timeline-content {
                width: calc(100% - 60px);
                margin-left: 60px !important;
            }
            .timeline-content::before {
                left: -40px !important;
                transform: translateX(0) !important;
            }
        }