:root {
            --primary-color: #0a4a7a;
            --secondary-color: #c19a5f;
            --dark-color: #333;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: 'Microsoft YaHei', 'SimHei', sans-serif;
            color: var(--dark-color);
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, .navbar-brand {
            font-weight: 700;
        }
        .text-primary { color: var(--primary-color) !important; }
        .bg-primary { background-color: var(--primary-color) !important; }
        .text-secondary { color: var(--secondary-color) !important; }
        .bg-secondary { background-color: var(--secondary-color) !important; }
        .navbar {
            box-shadow: 0 2px 10px rgba(0,0,0,.1);
            transition: all 0.3s ease;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }
        .navbar-brand {
            font-size: 1.8rem;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            position: relative;
        }
        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--secondary-color);
            transition: width 0.3s ease;
        }
        .navbar-nav .nav-link:hover::after,
        .navbar-nav .nav-link.active::after {
            width: 80%;
        }
        .hero {
            background: linear-gradient(rgba(10, 74, 122, 0.85), rgba(10, 74, 122, 0.9)), url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 10rem 0;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
        }
        .hero .lead {
            font-size: 1.4rem;
            margin-bottom: 2rem;
        }
        .btn-hero {
            background-color: var(--secondary-color);
            border: none;
            padding: 0.8rem 2.5rem;
            font-weight: 600;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        .btn-hero:hover {
            background-color: #b08a50;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        section {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            padding-bottom: 1rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--secondary-color);
        }
        .section-title.text-center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .about-img {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .about-feature-item {
            background: var(--light-color);
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--primary-color);
            transition: transform 0.3s ease;
        }
        .about-feature-item:hover {
            transform: translateY(-5px);
        }
        .service-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            height: 100%;
            transition: all 0.3s ease;
            border: 1px solid #eee;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.15);
        }
        .service-icon {
            width: 80px;
            height: 80px;
            background: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: -40px auto 1.5rem;
            color: white;
            font-size: 2rem;
            box-shadow: 0 5px 15px rgba(10, 74, 122, 0.3);
        }
        .project-item {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 30px;
            height: 300px;
        }
        .project-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .project-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(10, 74, 122, 0.9), transparent);
            color: white;
            padding: 2rem;
            transform: translateY(30px);
            opacity: 0;
            transition: all 0.4s ease;
        }
        .project-item:hover .project-overlay {
            transform: translateY(0);
            opacity: 1;
        }
        .project-item:hover img {
            transform: scale(1.05);
        }
        .news-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .news-date {
            position: absolute;
            top: 15px;
            left: 15px;
            background: var(--primary-color);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            font-weight: 600;
        }
        .news-card .card-body {
            padding: 1.5rem;
        }
        .contact-info-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1.5rem;
        }
        .contact-icon {
            background: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            flex-shrink: 0;
        }
        .contact-form .form-control {
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            margin-bottom: 1.5rem;
        }
        .contact-form .form-control:focus {
            box-shadow: 0 0 0 0.25rem rgba(10, 74, 122, 0.25);
            border-color: var(--primary-color);
        }
        .friendlink {
            background-color: var(--light-color);
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 1rem 1.5rem;
            margin: 0.5rem;
            border-radius: 8px;
            border: 1px solid #eee;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        footer {
            background-color: #222;
            color: #aaa;
        }
        footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        footer a:hover {
            color: white;
        }
        .footer-bottom {
            border-top: 1px solid #444;
            padding-top: 1.5rem;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hero {
                padding: 6rem 0;
                min-height: auto;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            section {
                padding: 3rem 0;
            }
            .navbar-brand {
                font-size: 1.5rem;
            }
        }