:root {
            --primary-color: #1a6d3b;
            --secondary-color: #0d4522;
            --accent-color: #34a853;
            --light-bg: #f8f9fa;
            --dark-text: #333;
            --transition: all 0.3s ease;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            color: var(--dark-text);
            overflow-x: hidden;
            line-height: 1.8;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--secondary-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
        }
        .navbar-brand span {
            color: var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1542601906990-b4d3fb778b09?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') no-repeat center center/cover;
            color: white;
            padding: 150px 0;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 20px;
            margin-bottom: 50px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--primary-color);
        }
        .section-title.text-center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .icon-box {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
            transition: var(--transition);
        }
        .service-card, .project-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
            height: 100%;
        }
        .service-card:hover, .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-card:hover .icon-box {
            transform: scale(1.1);
        }
        .img-hover-zoom {
            overflow: hidden;
            height: 250px;
        }
        .img-hover-zoom img {
            transition: var(--transition);
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-card:hover .img-hover-zoom img, .project-card:hover .img-hover-zoom img {
            transform: scale(1.05);
        }
        .stats-box {
            background: var(--primary-color);
            color: white;
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            transition: var(--transition);
        }
        .stats-box:hover {
            background: var(--secondary-color);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            display: block;
            line-height: 1;
        }
        .contact-info-box {
            padding: 25px;
            border-left: 4px solid var(--primary-color);
            background: var(--light-bg);
            margin-bottom: 25px;
        }
        .contact-info-box i {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        .footer {
            background: #222;
            color: #aaa;
            padding: 60px 0 30px;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .copyright {
            border-top: 1px solid #444;
            padding-top: 20px;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        .friendlink {
            background: var(--light-bg);
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px 10px;
            background: white;
            border-radius: 30px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: var(--transition);
            color: var(--dark-text);
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            text-decoration: none;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 10px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            transform: translateY(-2px);
        }
        .breadcrumb {
            background-color: transparent;
            padding: 0;
        }
        .breadcrumb-item a {
            color: var(--primary-color);
        }
        .nav-pills .nav-link.active {
            background-color: var(--primary-color);
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(26, 109, 59, 0.1);
            color: var(--secondary-color);
            font-weight: 600;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 109, 59, 0.25);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 100px 0;
                min-height: 70vh;
            }
            .section-padding {
                padding: 50px 0;
            }
        }